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fpc/fv/dialogs.pas

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{ $Id$ }
{********[ SOURCE FILE OF GRAPHICAL FREE VISION ]**********}
{ }
{ System independent GRAPHICAL clone of DIALOGS.PAS }
{ }
{ Interface Copyright (c) 1992 Borland International }
{ }
{ Copyright (c) 1996, 1997, 1998, 1999 by Leon de Boer }
{ ldeboer@attglobal.net - primary e-mail addr }
{ ldeboer@starwon.com.au - backup e-mail addr }
{ }
{****************[ THIS CODE IS FREEWARE ]*****************}
{ }
{ This sourcecode is released for the purpose to }
{ promote the pascal language on all platforms. You may }
{ redistribute it and/or modify with the following }
{ DISCLAIMER. }
{ }
{ This SOURCE CODE is distributed "AS IS" WITHOUT }
{ WARRANTIES AS TO PERFORMANCE OF MERCHANTABILITY OR }
{ ANY OTHER WARRANTIES WHETHER EXPRESSED OR IMPLIED. }
{ }
{*****************[ SUPPORTED PLATFORMS ]******************}
{ }
{ Only Free Pascal Compiler supported }
{ }
{**********************************************************}
UNIT Dialogs;
{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
INTERFACE
{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
{====Include file to sort compiler platform out =====================}
{$I Platform.inc}
{====================================================================}
{==== Compiler directives ===========================================}
{$X+} { Extended syntax is ok }
{$R-} { Disable range checking }
{$S-} { Disable Stack Checking }
{$I-} { Disable IO Checking }
{$Q-} { Disable Overflow Checking }
{$V-} { Turn off strict VAR strings }
{====================================================================}
USES
{$IFDEF OS_WINDOWS} { WIN/NT CODE }
Windows, { Standard units }
{$ENDIF}
{$IFDEF OS_OS2} { OS2 CODE }
{$IFDEF PPC_FPC}
OS2Def, DosCalls, PMWIN, { Standard units }
{$ELSE}
OS2Def, OS2Base, OS2PMAPI, { Standard units }
{$ENDIF}
{$ENDIF}
GFVGraph, { GFV standard unit }
FVCommon, FVConsts, Objects, Drivers, Views, Validate; { Standard GFV units }
{***************************************************************************}
{ PUBLIC CONSTANTS }
{***************************************************************************}
{---------------------------------------------------------------------------}
{ COLOUR PALETTE DEFINITIONS }
{---------------------------------------------------------------------------}
CONST
CGrayDialog = #32#33#34#35#36#37#38#39#40#41#42#43#44#45#46#47 +
#48#49#50#51#52#53#54#55#56#57#58#59#60#61#62#63;
CBlueDialog = #64#65#66#67#68#69#70#71#72#73#74#75#76#77#78#79 +
#80#81#82#83#84#85#86#87#88#89#90#91#92#92#94#95;
CCyanDialog = #96#97#98#99#100#101#102#103#104#105#106#107#108 +
#109#110#111#112#113#114#115#116#117#118#119#120 +
#121#122#123#124#125#126#127;
CStaticText = #6#7#8#9;
CLabel = #7#8#9#9;
CButton = #10#11#12#13#14#14#14#15;
CCluster = #16#17#18#18#31#6;
CInputLine = #19#19#20#21#14;
CHistory = #22#23;
CHistoryWindow = #19#19#21#24#25#19#20;
CHistoryViewer = #6#6#7#6#6;
CDialog = CGrayDialog; { Default palette }
const
{ ldXXXX constants }
ldNone = $0000;
ldNew = $0001;
ldEdit = $0002;
ldDelete = $0004;
ldNewEditDelete = ldNew or ldEdit or ldDelete;
ldHelp = $0008;
ldAllButtons = ldNew or ldEdit or ldDelete or ldHelp;
ldNewIcon = $0010;
ldEditIcon = $0020;
ldDeleteIcon = $0040;
ldAllIcons = ldNewIcon or ldEditIcon or ldDeleteIcon;
ldAll = ldAllIcons or ldAllButtons;
ldNoFrame = $0080;
ldNoScrollBar = $0100;
{ ofXXXX constants }
ofNew = $0001;
ofDelete = $0002;
ofEdit = $0004;
ofNewEditDelete = ofNew or ofDelete or ofEdit;
{---------------------------------------------------------------------------}
{ TDialog PALETTE COLOUR CONSTANTS }
{---------------------------------------------------------------------------}
CONST
dpBlueDialog = 0; { Blue dialog colour }
dpCyanDialog = 1; { Cyan dialog colour }
dpGrayDialog = 2; { Gray dialog colour }
{---------------------------------------------------------------------------}
{ TButton FLAGS MASKS }
{---------------------------------------------------------------------------}
CONST
bfNormal = $00; { Normal displayed }
bfDefault = $01; { Default command }
bfLeftJust = $02; { Left just text }
bfBroadcast = $04; { Broadcast command }
bfGrabFocus = $08; { Grab focus }
{---------------------------------------------------------------------------}
{ TMultiCheckBoxes FLAGS - (HiByte = Bits LoByte = Mask) }
{---------------------------------------------------------------------------}
CONST
cfOneBit = $0101; { One bit masks }
cfTwoBits = $0203; { Two bit masks }
cfFourBits = $040F; { Four bit masks }
cfEightBits = $08FF; { Eight bit masks }
{---------------------------------------------------------------------------}
{ DIALOG BROADCAST COMMANDS }
{---------------------------------------------------------------------------}
CONST
cmRecordHistory = 60; { Record history cmd }
{***************************************************************************}
{ RECORD DEFINITIONS }
{***************************************************************************}
{---------------------------------------------------------------------------}
{ ITEM RECORD DEFINITION }
{---------------------------------------------------------------------------}
TYPE
PSItem = ^TSItem;
TSItem = RECORD
Value: PString; { Item string }
Next: PSItem; { Next item }
END;
{***************************************************************************}
{ OBJECT DEFINITIONS }
{***************************************************************************}
{---------------------------------------------------------------------------}
{ TInputLine OBJECT - INPUT LINE OBJECT }
{---------------------------------------------------------------------------}
TYPE
TInputLine = OBJECT (TView)
MaxLen: Sw_Integer; { Max input length }
CurPos: Sw_Integer; { Cursor position }
FirstPos: Sw_Integer; { First position }
SelStart: Sw_Integer; { Selected start }
SelEnd: Sw_Integer; { Selected end }
Data: PString; { Input line data }
Validator: PValidator; { Validator of view }
CONSTRUCTOR Init (Var Bounds: TRect; AMaxLen: Sw_Integer);
CONSTRUCTOR Load (Var S: TStream);
DESTRUCTOR Done; Virtual;
FUNCTION DataSize: Sw_Word; Virtual;
FUNCTION GetPalette: PPalette; Virtual;
FUNCTION Valid (Command: Word): Boolean; Virtual;
PROCEDURE Draw; Virtual;
PROCEDURE DrawCursor; Virtual;
PROCEDURE DrawbackGround; Virtual;
PROCEDURE SelectAll (Enable: Boolean);
PROCEDURE SetValidator (AValid: PValidator);
PROCEDURE SetState (AState: Word; Enable: Boolean); Virtual;
PROCEDURE GetData (Var Rec); Virtual;
PROCEDURE SetData (Var Rec); Virtual;
PROCEDURE Store (Var S: TStream);
PROCEDURE HandleEvent (Var Event: TEvent); Virtual;
PRIVATE
FUNCTION CanScroll (Delta: Sw_Integer): Boolean;
END;
PInputLine = ^TInputLine;
{---------------------------------------------------------------------------}
{ TButton OBJECT - BUTTON ANCESTOR OBJECT }
{---------------------------------------------------------------------------}
TYPE
TButton = OBJECT (TView)
AmDefault: Boolean; { If default button }
Flags : Byte; { Button flags }
Command : Word; { Button command }
Title : PString; { Button title }
CONSTRUCTOR Init (Var Bounds: TRect; ATitle: TTitleStr; ACommand: Word;
AFlags: Word);
CONSTRUCTOR Load (Var S: TStream);
DESTRUCTOR Done; Virtual;
FUNCTION GetPalette: PPalette; Virtual;
PROCEDURE Press; Virtual;
PROCEDURE DrawFocus; Virtual;
PROCEDURE DrawState (Down: Boolean);
PROCEDURE MakeDefault (Enable: Boolean);
PROCEDURE SetState (AState: Word; Enable: Boolean); Virtual;
PROCEDURE Store (Var S: TStream);
PROCEDURE HandleEvent (Var Event: TEvent); Virtual;
PRIVATE
DownFlag: Boolean;
END;
PButton = ^TButton;
{---------------------------------------------------------------------------}
{ TCluster OBJECT - CLUSTER ANCESTOR OBJECT }
{---------------------------------------------------------------------------}
TYPE
{ Palette layout }
{ 1 = Normal text }
{ 2 = Selected text }
{ 3 = Normal shortcut }
{ 4 = Selected shortcut }
{ 5 = Disabled text }
TCluster = OBJECT (TView)
Id : Sw_Integer; { New communicate id }
Sel : Sw_Integer; { Selected item }
Value : LongInt; { Bit value }
EnableMask: LongInt; { Mask enable bits }
Strings : TStringCollection; { String collection }
CONSTRUCTOR Init (Var Bounds: TRect; AStrings: PSItem);
CONSTRUCTOR Load (Var S: TStream);
DESTRUCTOR Done; Virtual;
FUNCTION DataSize: Sw_Word; Virtual;
FUNCTION GetHelpCtx: Word; Virtual;
FUNCTION GetPalette: PPalette; Virtual;
FUNCTION Mark (Item: Sw_Integer): Boolean; Virtual;
FUNCTION MultiMark (Item: Sw_Integer): Byte; Virtual;
FUNCTION ButtonState (Item: Sw_Integer): Boolean;
PROCEDURE DrawFocus; Virtual;
PROCEDURE Press (Item: Sw_Integer); Virtual;
PROCEDURE MovedTo (Item: Sw_Integer); Virtual;
PROCEDURE SetState (AState: Word; Enable: Boolean); Virtual;
PROCEDURE DrawMultiBox (Const Icon, Marker: String);
PROCEDURE DrawBox (Const Icon: String; Marker: Char);
PROCEDURE SetButtonState (AMask: Longint; Enable: Boolean);
PROCEDURE GetData (Var Rec); Virtual;
PROCEDURE SetData (Var Rec); Virtual;
PROCEDURE Store (Var S: TStream);
PROCEDURE HandleEvent (Var Event: TEvent); Virtual;
PRIVATE
FUNCTION FindSel (P: TPoint): Sw_Integer;
FUNCTION Row (Item: Sw_Integer): Sw_Integer;
FUNCTION Column (Item: Sw_Integer): Sw_Integer;
END;
PCluster = ^TCluster;
{---------------------------------------------------------------------------}
{ TRadioButtons OBJECT - RADIO BUTTON OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Normal text }
{ 2 = Selected text }
{ 3 = Normal shortcut }
{ 4 = Selected shortcut }
TYPE
TRadioButtons = OBJECT (TCluster)
FUNCTION Mark (Item: Sw_Integer): Boolean; Virtual;
PROCEDURE DrawFocus; Virtual;
PROCEDURE Press (Item: Sw_Integer); Virtual;
PROCEDURE MovedTo(Item: Sw_Integer); Virtual;
PROCEDURE SetData (Var Rec); Virtual;
END;
PRadioButtons = ^TRadioButtons;
{---------------------------------------------------------------------------}
{ TCheckBoxes OBJECT - CHECK BOXES OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Normal text }
{ 2 = Selected text }
{ 3 = Normal shortcut }
{ 4 = Selected shortcut }
TYPE
TCheckBoxes = OBJECT (TCluster)
FUNCTION Mark (Item: Sw_Integer): Boolean; Virtual;
PROCEDURE DrawFocus; Virtual;
PROCEDURE Press (Item: Sw_Integer); Virtual;
END;
PCheckBoxes = ^TCheckBoxes;
{---------------------------------------------------------------------------}
{ TMultiCheckBoxes OBJECT - CHECK BOXES OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Normal text }
{ 2 = Selected text }
{ 3 = Normal shortcut }
{ 4 = Selected shortcut }
TYPE
TMultiCheckBoxes = OBJECT (TCluster)
SelRange: Byte; { Select item range }
Flags : Word; { Select flags }
States : PString; { Strings }
CONSTRUCTOR Init (Var Bounds: TRect; AStrings: PSItem;
ASelRange: Byte; AFlags: Word; Const AStates: String);
CONSTRUCTOR Load (Var S: TStream);
DESTRUCTOR Done; Virtual;
FUNCTION DataSize: Sw_Word; Virtual;
FUNCTION MultiMark (Item: Sw_Integer): Byte; Virtual;
PROCEDURE DrawFocus; Virtual;
PROCEDURE Press (Item: Sw_Integer); Virtual;
PROCEDURE GetData (Var Rec); Virtual;
PROCEDURE SetData (Var Rec); Virtual;
PROCEDURE Store (Var S: TStream);
END;
PMultiCheckBoxes = ^TMultiCheckBoxes;
{---------------------------------------------------------------------------}
{ TListBox OBJECT - LIST BOX OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Active }
{ 2 = Inactive }
{ 3 = Focused }
{ 4 = Selected }
{ 5 = Divider }
TYPE
TListBox = OBJECT (TListViewer)
List: PCollection; { List of strings }
CONSTRUCTOR Init (Var Bounds: TRect; ANumCols: Sw_Word;
AScrollBar: PScrollBar);
CONSTRUCTOR Load (Var S: TStream);
FUNCTION DataSize: Sw_Word; Virtual;
FUNCTION GetText (Item: Sw_Integer; MaxLen: Sw_Integer): String; Virtual;
PROCEDURE NewList(AList: PCollection); Virtual;
PROCEDURE GetData (Var Rec); Virtual;
PROCEDURE SetData (Var Rec); Virtual;
PROCEDURE Store (Var S: TStream);
procedure DeleteFocusedItem; virtual;
{ DeleteFocusedItem deletes the focused item and redraws the view. }
{#X FreeFocusedItem }
procedure DeleteItem (Item : Sw_Integer); virtual;
{ DeleteItem deletes Item from the associated collection. }
{#X FreeItem }
procedure FreeAll; virtual;
{ FreeAll deletes and disposes of all items in the associated
collection. }
{ FreeFocusedItem FreeItem }
procedure FreeFocusedItem; virtual;
{ FreeFocusedItem deletes and disposes of the focused item then redraws
the listbox. }
{#X FreeAll FreeItem }
procedure FreeItem (Item : Sw_Integer); virtual;
{ FreeItem deletes Item from the associated collection and disposes of
it, then redraws the listbox. }
{#X FreeFocusedItem FreeAll }
function GetFocusedItem : Pointer; virtual;
{ GetFocusedItem is a more readable method of returning the focused
item from the listbox. It is however slightly slower than: }
{#M+}
{
Item := ListBox^.List^.At(ListBox^.Focused); }
{#M-}
procedure Insert (Item : Pointer); virtual;
{ Insert inserts Item into the collection, adjusts the listbox's range,
then redraws the listbox. }
{#X FreeItem }
procedure SetFocusedItem (Item : Pointer); virtual;
{ SetFocusedItem changes the focused item to Item then redraws the
listbox. }
{# FocusItemNum }
END;
PListBox = ^TListBox;
{---------------------------------------------------------------------------}
{ TStaticText OBJECT - STATIC TEXT OBJECT }
{---------------------------------------------------------------------------}
TYPE
TStaticText = OBJECT (TView)
Text: PString; { Text string ptr }
CONSTRUCTOR Init (Var Bounds: TRect; Const AText: String);
CONSTRUCTOR Load (Var S: TStream);
DESTRUCTOR Done; Virtual;
FUNCTION GetPalette: PPalette; Virtual;
PROCEDURE DrawBackGround; Virtual;
PROCEDURE Store (Var S: TStream);
PROCEDURE GetText (Var S: String); Virtual;
END;
PStaticText = ^TStaticText;
{---------------------------------------------------------------------------}
{ TParamText OBJECT - PARMETER STATIC TEXT OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Text }
TYPE
TParamText = OBJECT (TStaticText)
ParamCount: Sw_Integer; { Parameter count }
ParamList : Pointer; { Parameter list }
CONSTRUCTOR Init (Var Bounds: TRect; Const AText: String;
AParamCount: Sw_Integer);
CONSTRUCTOR Load (Var S: TStream);
FUNCTION DataSize: Sw_Word; Virtual;
PROCEDURE GetData (Var Rec); Virtual;
PROCEDURE SetData (Var Rec); Virtual;
PROCEDURE Store (Var S: TStream);
PROCEDURE GetText (Var S: String); Virtual;
END;
PParamText = ^TParamText;
{---------------------------------------------------------------------------}
{ TLabel OBJECT - LABEL OBJECT }
{---------------------------------------------------------------------------}
TYPE
TLabel = OBJECT (TStaticText)
Light: Boolean;
Link: PView; { Linked view }
CONSTRUCTOR Init (Var Bounds: TRect; CONST AText: String; ALink: PView);
CONSTRUCTOR Load (Var S: TStream);
FUNCTION GetPalette: PPalette; Virtual;
PROCEDURE DrawBackGround; Virtual;
PROCEDURE Store (Var S: TStream);
PROCEDURE HandleEvent (Var Event: TEvent); Virtual;
END;
PLabel = ^TLabel;
{---------------------------------------------------------------------------}
{ THistoryViewer OBJECT - HISTORY VIEWER OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Active }
{ 2 = Inactive }
{ 3 = Focused }
{ 4 = Selected }
{ 5 = Divider }
TYPE
THistoryViewer = OBJECT (TListViewer)
HistoryId: Word; { History id }
CONSTRUCTOR Init(Var Bounds: TRect; AHScrollBar, AVScrollBar: PScrollBar;
AHistoryId: Word);
FUNCTION HistoryWidth: Sw_Integer;
FUNCTION GetPalette: PPalette; Virtual;
FUNCTION GetText (Item: Sw_Integer; MaxLen: Sw_Integer): String; Virtual;
PROCEDURE HandleEvent (Var Event: TEvent); Virtual;
END;
PHistoryViewer = ^THistoryViewer;
{---------------------------------------------------------------------------}
{ THistoryWindow OBJECT - HISTORY WINDOW OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Frame passive }
{ 2 = Frame active }
{ 3 = Frame icon }
{ 4 = ScrollBar page area }
{ 5 = ScrollBar controls }
{ 6 = HistoryViewer normal text }
{ 7 = HistoryViewer selected text }
TYPE
THistoryWindow = OBJECT (TWindow)
Viewer: PListViewer; { List viewer object }
CONSTRUCTOR Init (Var Bounds: TRect; HistoryId: Word);
FUNCTION GetSelection: String; Virtual;
FUNCTION GetPalette: PPalette; Virtual;
PROCEDURE InitViewer (HistoryId: Word); Virtual;
END;
PHistoryWindow = ^THistoryWindow;
{---------------------------------------------------------------------------}
{ THistory OBJECT - HISTORY OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Arrow }
{ 2 = Sides }
TYPE
THistory = OBJECT (TView)
HistoryId: Word;
Link: PInputLine;
CONSTRUCTOR Init (Var Bounds: TRect; ALink: PInputLine; AHistoryId: Word);
CONSTRUCTOR Load (Var S: TStream);
FUNCTION GetPalette: PPalette; Virtual;
FUNCTION InitHistoryWindow (Var Bounds: TRect): PHistoryWindow; Virtual;
PROCEDURE Draw; Virtual;
PROCEDURE RecordHistory (CONST S: String); Virtual;
PROCEDURE Store (Var S: TStream);
PROCEDURE HandleEvent (Var Event: TEvent); Virtual;
END;
PHistory = ^THistory;
{#Z+}
PBrowseInputLine = ^TBrowseInputLine;
TBrowseInputLine = Object(TInputLine)
History: Sw_Word;
constructor Init(var Bounds: TRect; AMaxLen: Sw_Integer; AHistory: Sw_Word);
constructor Load(var S: TStream);
function DataSize: Sw_Word; virtual;
procedure GetData(var Rec); virtual;
procedure SetData(var Rec); virtual;
procedure Store(var S: TStream);
end; { of TBrowseInputLine }
TBrowseInputLineRec = record
Text: string;
History: Sw_Word;
end; { of TBrowseInputLineRec }
{#Z+}
PBrowseButton = ^TBrowseButton;
{#Z-}
TBrowseButton = Object(TButton)
Link: PBrowseInputLine;
constructor Init(var Bounds: TRect; ATitle: TTitleStr; ACommand: Word;
AFlags: Byte; ALink: PBrowseInputLine);
constructor Load(var S: TStream);
procedure Press; virtual;
procedure Store(var S: TStream);
end; { of TBrowseButton }
{#Z+}
PCommandIcon = ^TCommandIcon;
{#Z-}
TCommandIcon = Object(TStaticText)
{ A TCommandIcon sends an evCommand message to its owner with
Event.Command set to #Command# when it is clicked with a mouse. }
constructor Init (var Bounds : TRect; AText : String; ACommand : Word);
{ Creates an instance of a TCommandIcon and sets #Command# to
ACommand. AText is the text which is displayed as the icon. If an
error occurs Init fails. }
procedure HandleEvent (var Event : TEvent); virtual;
{ Captures mouse events within its borders and sends an evCommand to
its owner in response to the mouse event. }
{#X Command }
private
Command : Word;
{ Command is the command sent to the command icon's owner when it is
clicked. }
end; { of TCommandIcon }
{#Z+}
PCommandSItem = ^TCommandSItem;
{#Z-}
TCommandSItem = record
{ A TCommandSItem is the data structure used to initialize command
clusters with #NewCommandSItem# rather than the standarad #NewSItem#.
It is used to associate a command with an individual cluster item. }
{#X TCommandCheckBoxes TCommandRadioButtons }
Value : String;
{ Value is the text displayed for the cluster item. }
{#X Command Next }
Command : Word;
{ Command is the command broadcast when the cluster item is pressed. }
{#X Value Next }
Next : PCommandSItem;
{ Next is a pointer to the next item in the cluster. }
{#X Value Command }
end; { of TCommandSItem }
TCommandArray = array[0..15] of Word;
{ TCommandArray holds a list of commands which are associated with a
cluster. }
{#X TCommandCheckBoxes TCommandRadioButtons }
{#Z+}
PCommandCheckBoxes = ^TCommandCheckBoxes;
{#Z-}
TCommandCheckBoxes = Object(TCheckBoxes)
{ TCommandCheckBoxes function as normal TCheckBoxes, except that when a
cluster item is pressed it broadcasts a command associated with the
cluster item to the cluster's owner.
TCommandCheckBoxes are useful when other parts of a dialog should be
enabled or disabled in response to a check box's status. }
CommandList : TCommandArray;
{ CommandList is the list of commands associated with each check box
item. }
{#X Init Load Store }
constructor Init (var Bounds : TRect; ACommandStrings : PCommandSItem);
{ Init calls the inherited constructor, then sets up the #CommandList#
with the specified commands. If an error occurs Init fails. }
{#X NewCommandSItem }
constructor Load (var S : TStream);
{ Load calls the inherited constructor, then loads the #CommandList#
from the stream S. If an error occurs Load fails. }
{#X Store Init }
procedure Press (Item : Sw_Integer); virtual;
{ Press calls the inherited Press then broadcasts the command
associated with the cluster item that was pressed to the check boxes'
owner. }
{#X CommandList }
procedure Store (var S : TStream); { store should never be virtual;}
{ Store calls the inherited Store method then writes the #CommandList#
to the stream. }
{#X Load }
end; { of TCommandCheckBoxes }
{#Z+}
PCommandRadioButtons = ^TCommandRadioButtons;
{#Z-}
TCommandRadioButtons = Object(TRadioButtons)
{ TCommandRadioButtons function as normal TRadioButtons, except that when
a cluster item is pressed it broadcasts a command associated with the
cluster item to the cluster's owner.
TCommandRadioButtons are useful when other parts of a dialog should be
enabled or disabled in response to a radiobutton's status. }
CommandList : TCommandArray; { commands for each possible value }
{ The list of commands associated with each radio button item. }
{#X Init Load Store }
constructor Init (var Bounds : TRect; ACommandStrings : PCommandSItem);
{ Init calls the inherited constructor and sets up the #CommandList#
with the specified commands. If an error occurs Init disposes of the
command strings then fails. }
{#X NewCommandSItem }
constructor Load (var S : TStream);
{ Load calls the inherited constructor then loads the #CommandList#
from the stream S. If an error occurs Load fails. }
{#X Store }
procedure MovedTo (Item : Sw_Integer); virtual;
{ MovedTo calls the inherited MoveTo, then broadcasts the command of
the newly selected cluster item to the cluster's owner. }
{#X Press CommandList }
procedure Press (Item : Sw_Integer); virtual;
{ Press calls the inherited Press then broadcasts the command
associated with the cluster item that was pressed to the check boxes
owner. }
{#X CommandList MovedTo }
procedure Store (var S : TStream); { store should never be virtual;}
{ Store calls the inherited Store method then writes the #CommandList#
to the stream. }
{#X Load }
end; { of TCommandRadioButtons }
PEditListBox = ^TEditListBox;
TEditListBox = Object(TListBox)
CurrentField : Integer;
constructor Init (Bounds : TRect; ANumCols: Word;
AVScrollBar : PScrollBar);
constructor Load (var S : TStream);
function FieldValidator : PValidator; virtual;
function FieldWidth : Integer; virtual;
procedure GetField (InputLine : PInputLine); virtual;
function GetPalette : PPalette; virtual;
procedure HandleEvent (var Event : TEvent); virtual;
procedure SetField (InputLine : PInputLine); virtual;
function StartColumn : Integer; virtual;
PRIVATE
procedure EditField (var Event : TEvent);
end; { of TEditListBox }
PModalInputLine = ^TModalInputLine;
TModalInputLine = Object(TInputLine)
function Execute : Word; virtual;
procedure HandleEvent (var Event : TEvent); virtual;
procedure SetState (AState : Word; Enable : Boolean); virtual;
private
EndState : Word;
end; { of TModalInputLine }
{---------------------------------------------------------------------------}
{ TDialog OBJECT - DIALOG OBJECT }
{---------------------------------------------------------------------------}
{ Palette layout }
{ 1 = Frame passive }
{ 2 = Frame active }
{ 3 = Frame icon }
{ 4 = ScrollBar page area }
{ 5 = ScrollBar controls }
{ 6 = StaticText }
{ 7 = Label normal }
{ 8 = Label selected }
{ 9 = Label shortcut }
{ 10 = Button normal }
{ 11 = Button default }
{ 12 = Button selected }
{ 13 = Button disabled }
{ 14 = Button shortcut }
{ 15 = Button shadow }
{ 16 = Cluster normal }
{ 17 = Cluster selected }
{ 18 = Cluster shortcut }
{ 19 = InputLine normal text }
{ 20 = InputLine selected text }
{ 21 = InputLine arrows }
{ 22 = History arrow }
{ 23 = History sides }
{ 24 = HistoryWindow scrollbar page area }
{ 25 = HistoryWindow scrollbar controls }
{ 26 = ListViewer normal }
{ 27 = ListViewer focused }
{ 28 = ListViewer selected }
{ 29 = ListViewer divider }
{ 30 = InfoPane }
{ 31 = Cluster disabled }
{ 32 = Reserved }
PDialog = ^TDialog;
TDialog = object(TWindow)
constructor Init(var Bounds: TRect; ATitle: TTitleStr);
constructor Load(var S: TStream);
procedure Cancel (ACommand : Word); virtual;
{ If the dialog is a modal dialog, Cancel calls EndModal(ACommand). If
the dialog is non-modal Cancel calls Close.
Cancel may be overridden to provide special processing prior to
destructing the dialog. }
procedure ChangeTitle (ANewTitle : TTitleStr); virtual;
{ ChangeTitle disposes of the current title, assigns ANewTitle to Title,
then redraws the dialog. }
procedure FreeSubView (ASubView : PView); virtual;
{ FreeSubView deletes and disposes ASubView from the dialog. }
{#X FreeAllSubViews IsSubView }
procedure FreeAllSubViews; virtual;
{ Deletes then disposes all subviews in the dialog. }
{#X FreeSubView IsSubView }
function GetPalette: PPalette; virtual;
procedure HandleEvent(var Event: TEvent); virtual;
function IsSubView (AView : PView) : Boolean; virtual;
{ IsSubView returns True if AView is non-nil and is a subview of the
dialog. }
{#X FreeSubView FreeAllSubViews }
function NewButton (X, Y, W, H : Sw_Integer; ATitle : TTitleStr;
ACommand, AHelpCtx : Word;
AFlags : Byte) : PButton;
{ Creates and inserts into the dialog a new TButton with the
help context AHelpCtx.
A pointer to the new button is returned for checking validity of the
initialization. }
{#X NewInputLine NewLabel }
function NewLabel (X, Y : Sw_Integer; AText : String;
ALink : PView) : PLabel;
{ NewLabel creates and inserts into the dialog a new TLabel and
associates it with ALink. }
{#X NewButton NewInputLine }
function NewInputLine (X, Y, W, AMaxLen : Sw_Integer; AHelpCtx : Word
; AValidator : PValidator) : PInputLine;
{ NewInputLine creates and inserts into the dialog a new TBSDInputLine
with the help context to AHelpCtx and the validator AValidator.
A pointer to the inputline is returned for checking validity of the
initialization. }
{#X NewButton NewLabel }
function Valid(Command: Word): Boolean; virtual;
end;
PListDlg = ^TListDlg;
TListDlg = object(TDialog)
{ TListDlg displays a listbox of items, with optional New, Edit, and
Delete buttons displayed according to the options bit set in the
dialog. Use the ofXXXX flags declared in this unit OR'd with the
standard ofXXXX flags to set the appropriate bits in Options.
If enabled, when the New or Edit buttons are pressed, an evCommand
message is sent to the application with a Command value of NewCommand
or EditCommand, respectively. Using this mechanism in combination with
the declared Init parameters, a standard TListDlg can be used with any
type of list displayable in a TListBox or its descendant. }
NewCommand: Word;
EditCommand: Word;
ListBox: PListBox;
ldOptions: Word;
constructor Init (ATitle: TTitleStr; Items: string; AButtons: Word;
AListBox: PListBox; AEditCommand, ANewCommand: Word);
constructor Load(var S: TStream);
procedure HandleEvent(var Event: TEvent); virtual;
procedure Store(var S: TStream); { store should never be virtual;}
end; { of TListDlg }
{***************************************************************************}
{ INTERFACE ROUTINES }
{***************************************************************************}
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ ITEM STRING ROUTINES }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{-NewSItem-----------------------------------------------------------
Allocates memory for a new TSItem record and sets the text field
and chains to the next TSItem. This allows easy construction of
singly-linked lists of strings, to end a chain the next TSItem
should be nil.
28Apr98 LdB
---------------------------------------------------------------------}
FUNCTION NewSItem (Const Str: String; ANext: PSItem): PSItem;
{ NewCommandSItem allocates and returns a pointer to a new #TCommandSItem#
record. The Value and Next fields of the record are set to NewStr(Str)
and ANext, respectively. The NewSItem function and the TSItem record type
allow easy construction of singly-linked lists of command strings. }
function NewCommandSItem (Str : String; ACommand : Word;
ANext : PCommandSItem) : PCommandSItem;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ DIALOG OBJECT REGISTRATION PROCEDURE }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{-RegisterDialogs----------------------------------------------------
This registers all the view type objects used in this unit.
30Sep99 LdB
---------------------------------------------------------------------}
PROCEDURE RegisterDialogs;
{***************************************************************************}
{ STREAM REGISTRATION RECORDS }
{***************************************************************************}
{---------------------------------------------------------------------------}
{ TDialog STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RDialog: TStreamRec = (
ObjType: 10; { Register id = 10 }
VmtLink: TypeOf(TDialog);
Load: @TDialog.Load; { Object load method }
Store: @TDialog.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TInputLine STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RInputLine: TStreamRec = (
ObjType: 11; { Register id = 11 }
VmtLink: TypeOf(TInputLine);
Load: @TInputLine.Load; { Object load method }
Store: @TInputLine.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TButton STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RButton: TStreamRec = (
ObjType: 12; { Register id = 12 }
VmtLink: TypeOf(TButton);
Load: @TButton.Load; { Object load method }
Store: @TButton.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TCluster STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RCluster: TStreamRec = (
ObjType: 13; { Register id = 13 }
VmtLink: TypeOf(TCluster);
Load: @TCluster.Load; { Object load method }
Store: @TCluster.Store { Objects store method }
);
{---------------------------------------------------------------------------}
{ TRadioButtons STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RRadioButtons: TStreamRec = (
ObjType: 14; { Register id = 14 }
VmtLink: TypeOf(TRadioButtons);
Load: @TRadioButtons.Load; { Object load method }
Store: @TRadioButtons.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TCheckBoxes STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RCheckBoxes: TStreamRec = (
ObjType: 15; { Register id = 15 }
VmtLink: TypeOf(TCheckBoxes);
Load: @TCheckBoxes.Load; { Object load method }
Store: @TCheckBoxes.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TMultiCheckBoxes STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RMultiCheckBoxes: TStreamRec = (
ObjType: 27; { Register id = 27 }
VmtLink: TypeOf(TMultiCheckBoxes);
Load: @TMultiCheckBoxes.Load; { Object load method }
Store: @TMultiCheckBoxes.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TListBox STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RListBox: TStreamRec = (
ObjType: 16; { Register id = 16 }
VmtLink: TypeOf(TListBox);
Load: @TListBox.Load; { Object load method }
Store: @TListBox.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TStaticText STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RStaticText: TStreamRec = (
ObjType: 17; { Register id = 17 }
VmtLink: TypeOf(TStaticText);
Load: @TStaticText.Load; { Object load method }
Store: @TStaticText.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TLabel STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RLabel: TStreamRec = (
ObjType: 18; { Register id = 18 }
VmtLink: TypeOf(TLabel);
Load: @TLabel.Load; { Object load method }
Store: @TLabel.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ THistory STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RHistory: TStreamRec = (
ObjType: 19; { Register id = 19 }
VmtLink: TypeOf(THistory);
Load: @THistory.Load; { Object load method }
Store: @THistory.Store { Object store method }
);
{---------------------------------------------------------------------------}
{ TParamText STREAM REGISTRATION }
{---------------------------------------------------------------------------}
CONST
RParamText: TStreamRec = (
ObjType: 20; { Register id = 20 }
VmtLink: TypeOf(TParamText);
Load: @TParamText.Load; { Object load method }
Store: @TParamText.Store { Object store method }
);
RCommandCheckBoxes : TStreamRec = (
ObjType : idCommandCheckBoxes;
VmtLink : Ofs(TypeOf(TCommandCheckBoxes)^);
Load : @TCommandCheckBoxes.Load;
Store : @TCommandCheckBoxes.Store);
RCommandRadioButtons : TStreamRec = (
ObjType : idCommandRadioButtons;
VmtLink : Ofs(TypeOf(TCommandRadioButtons)^);
Load : @TCommandRadioButtons.Load;
Store : @TCommandRadioButtons.Store);
RCommandIcon : TStreamRec = (
ObjType : idCommandIcon;
VmtLink : Ofs(Typeof(TCommandIcon)^);
Load : @TCommandIcon.Load;
Store : @TCommandIcon.Store);
RBrowseButton: TStreamRec = (
ObjType : idBrowseButton;
VmtLink : Ofs(TypeOf(TBrowseButton)^);
Load : @TBrowseButton.Load;
Store : @TBrowseButton.Store);
REditListBox : TStreamRec = (
ObjType : idEditListBox;
VmtLink : Ofs(TypeOf(TEditListBox)^);
Load : @TEditListBox.Load;
Store : @TEditListBox.Store);
RListDlg : TStreamRec = (
ObjType : idListDlg;
VmtLink : Ofs(TypeOf(TListDlg)^);
Load : @TListDlg.Load;
Store : @TListDlg.Store);
RModalInputLine : TStreamRec = (
ObjType : idModalInputLine;
VmtLink : Ofs(TypeOf(TModalInputLine)^);
Load : @TModalInputLine.Load;
Store : @TModalInputLine.Store);
{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
IMPLEMENTATION
{<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>}
USES App,HistList; { Standard GFV unit }
{***************************************************************************}
{ PRIVATE DEFINED CONSTANTS }
{***************************************************************************}
{---------------------------------------------------------------------------}
{ LEFT AND RIGHT ARROW CHARACTER CONSTANTS }
{---------------------------------------------------------------------------}
CONST LeftArr = #17; RightArr = #16;
{---------------------------------------------------------------------------}
{ TButton MESSAGES }
{---------------------------------------------------------------------------}
CONST
cmGrabDefault = 61; { Grab default }
cmReleaseDefault = 62; { Release default }
{---------------------------------------------------------------------------}
{ IsBlank -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 08Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION IsBlank (Ch: Char): Boolean;
BEGIN
IsBlank := (Ch = ' ') OR (Ch = #13) OR (Ch = #10); { Check for characters }
END;
{---------------------------------------------------------------------------}
{ HotKey -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 08Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION HotKey (Const S: String): Char;
VAR I: Sw_Word;
BEGIN
HotKey := #0; { Preset fail }
If (S <> '') Then Begin { Valid string }
I := Pos('~', S); { Search for tilde }
If (I <> 0) Then HotKey := UpCase(S[I+1]); { Return hotkey }
End;
END;
{***************************************************************************}
{ OBJECT METHODS }
{***************************************************************************}
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TDialog OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TDialog------------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TDialog.Init (Var Bounds: TRect; ATitle: TTitleStr);
BEGIN
Inherited Init(Bounds, ATitle, wnNoNumber); { Call ancestor }
Options := Options OR ofVersion20; { Version two dialog }
GrowMode := 0; { Clear grow mode }
Flags := wfMove + wfClose; { Close/moveable flags }
Palette := dpGrayDialog; { Default gray colours }
END;
{--TDialog------------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TDialog.Load (Var S: TStream);
BEGIN
Inherited Load(S); { Call ancestor }
If (Options AND ofVersion = ofVersion10) Then Begin
Palette := dpGrayDialog; { Set gray palette }
Options := Options OR ofVersion20; { Update version flag }
End;
END;
{--TDialog------------------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TDialog.GetPalette: PPalette;
CONST P: Array[dpBlueDialog..dpGrayDialog] Of String[Length(CBlueDialog)] =
(CBlueDialog, CCyanDialog, CGrayDialog); { Always normal string }
BEGIN
GetPalette := @P[Palette]; { Return palette }
END;
{--TDialog------------------------------------------------------------------}
{ Valid -> Platforms DOS/DPMI/WIN/NT/Os2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TDialog.Valid (Command: Word): Boolean;
BEGIN
If (Command = cmCancel) Then Valid := True { Cancel returns true }
Else Valid := TGroup.Valid(Command); { Call group ancestor }
END;
{--TDialog------------------------------------------------------------------}
{ HandleEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TDialog.HandleEvent (Var Event: TEvent);
BEGIN
Inherited HandleEvent(Event); { Call ancestor }
Case Event.What Of
evNothing: Exit; { Speed up exit }
evKeyDown: { Key down event }
Case Event.KeyCode Of
kbEsc: Begin { Escape key press }
Event.What := evCommand; { Command event }
Event.Command := cmCancel; { cancel command }
Event.InfoPtr := Nil; { Clear info ptr }
PutEvent(Event); { Put event on queue }
ClearEvent(Event); { Clear the event }
End;
kbEnter: Begin { Enter key press }
Event.What := evBroadcast; { Broadcast event }
Event.Command := cmDefault; { Default command }
Event.InfoPtr := Nil; { Clear info ptr }
PutEvent(Event); { Put event on queue }
ClearEvent(Event); { Clear the event }
End;
End;
evCommand: { Command event }
Case Event.Command Of
cmOk, cmCancel, cmYes, cmNo: { End dialog cmds }
If (State AND sfModal <> 0) Then Begin { View is modal }
EndModal(Event.Command); { End modal state }
ClearEvent(Event); { Clear the event }
End;
End;
End;
END;
{****************************************************************************}
{ TDialog.Cancel }
{****************************************************************************}
procedure TDialog.Cancel (ACommand : Word);
begin
if State and sfModal = sfModal then
EndModal(ACommand)
else Close;
end;
{****************************************************************************}
{ TDialog.ChangeTitle }
{****************************************************************************}
procedure TDialog.ChangeTitle (ANewTitle : TTitleStr);
begin
if (Title <> nil) then
DisposeStr(Title);
Title := NewStr(ANewTitle);
Frame^.DrawView;
end;
{****************************************************************************}
{ TDialog.FreeSubView }
{****************************************************************************}
procedure TDialog.FreeSubView (ASubView : PView);
begin
if IsSubView(ASubView) then begin
Delete(ASubView);
Dispose(ASubView,Done);
DrawView;
end;
end;
{****************************************************************************}
{ TDialog.FreeAllSubViews }
{****************************************************************************}
procedure TDialog.FreeAllSubViews;
var
P : PView;
begin
P := First;
repeat
P := First;
if (P <> nil) then begin
Delete(P);
Dispose(P,Done);
end;
until (P = nil);
DrawView;
end;
{****************************************************************************}
{ TDialog.IsSubView }
{****************************************************************************}
function TDialog.IsSubView (AView : PView) : Boolean;
var P : PView;
begin
P := First;
while (P <> nil) and (P <> AView) do
P := P^.NextView;
IsSubView := ((P <> nil) and (P = AView));
end;
{****************************************************************************}
{ TDialog.NewButton }
{****************************************************************************}
function TDialog.NewButton (X, Y, W, H : Sw_Integer; ATitle : TTitleStr;
ACommand, AHelpCtx : Word;
AFlags : Byte) : PButton;
var
B : PButton;
R : TRect;
begin
R.Assign(X,Y,X+W,Y+H);
B := New(PButton,Init(R,ATitle,ACommand,AFlags));
if (B <> nil) then begin
B^.HelpCtx := AHelpCtx;
Insert(B);
end;
NewButton := B;
end;
{****************************************************************************}
{ TDialog.NewInputLine }
{****************************************************************************}
function TDialog.NewInputLine (X, Y, W, AMaxLen : Sw_Integer; AHelpCtx : Word
; AValidator : PValidator) : PInputLine;
var
P : PInputLine;
R : TRect;
begin
R.Assign(X,Y,X+W,Y+1);
P := New(PInputLine,Init(R,AMaxLen));
if (P <> nil) then begin
P^.SetValidator(AValidator);
P^.HelpCtx := AHelpCtx;
Insert(P);
end;
NewInputLine := P;
end;
{****************************************************************************}
{ TDialog.NewLabel }
{****************************************************************************}
function TDialog.NewLabel (X, Y : Sw_Integer; AText : String;
ALink : PView) : PLabel;
var
P : PLabel;
R : TRect;
begin
R.Assign(X,Y,X+CStrLen(AText)+1,Y+1);
P := New(PLabel,Init(R,AText,ALink));
if (P <> nil) then
Insert(P);
NewLabel := P;
end;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TInputLine OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TInputLine---------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TInputLine.Init (Var Bounds: TRect; AMaxLen: Sw_Integer);
BEGIN
Inherited Init(Bounds); { Call ancestor }
State := State OR sfCursorVis; { Cursor visible }
Options := Options OR (ofSelectable + ofFirstClick
+ ofVersion20); { Set options }
If (MaxAvail > AMaxLen + 1) Then Begin { Check enough memory }
GetMem(Data, AMaxLen + 1); { Allocate memory }
Data^ := ''; { Data = empty string }
End;
MaxLen := AMaxLen; { Hold maximum length }
END;
{--TInputLine---------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TInputLine.Load (Var S: TStream);
VAR B: Byte;
W: Word;
BEGIN
Inherited Load(S); { Call ancestor }
S.Read(W, sizeof(w)); MaxLen:=W; { Read max length }
S.Read(W, sizeof(w)); CurPos:=w; { Read cursor position }
S.Read(W, sizeof(w)); FirstPos:=w; { Read first position }
S.Read(W, sizeof(w)); SelStart:=w; { Read selected start }
S.Read(W, sizeof(w)); SelEnd:=w; { Read selected end }
S.Read(B, SizeOf(B)); { Read string length }
If (MaxAvail > MaxLen+1) Then Begin { Check enough memory }
GetMem(Data, MaxLen + 1); { Allocate memory }
S.Read(Data^[1], Length(Data^)); { Read string data }
SetLength(Data^, B); { Xfer string length }
End Else S.Seek(S.GetPos + B); { Move to position }
If (Options AND ofVersion >= ofVersion20) Then { Version 2 or above }
Validator := PValidator(S.Get); { Get any validator }
Options := Options OR ofVersion20; { Set version 2 flag }
END;
{--TInputLine---------------------------------------------------------------}
{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
DESTRUCTOR TInputLine.Done;
BEGIN
If (Data <> Nil) Then FreeMem(Data, MaxLen + 1); { Release any memory }
SetValidator(Nil); { Clear any validator }
Inherited Done; { Call ancestor }
END;
{--TInputLine---------------------------------------------------------------}
{ DataSize -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION TInputLine.DataSize: Sw_Word;
VAR DSize: Sw_Word;
BEGIN
DSize := 0; { Preset zero datasize }
If (Validator <> Nil) AND (Data <> Nil) Then
DSize := Validator^.Transfer(Data^, Nil,
vtDataSize); { Add validator size }
If (DSize <> 0) Then DataSize := DSize { Use validtor size }
Else DataSize := MaxLen + 1; { No validator use size }
END;
{--TInputLine---------------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION TInputLine.GetPalette: PPalette;
CONST P: String[Length(CInputLine)] = CInputLine; { Always normal string }
BEGIN
GetPalette := @P; { Return palette }
END;
{--TInputLine---------------------------------------------------------------}
{ Valid -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION TInputLine.Valid (Command: Word): Boolean;
FUNCTION AppendError (Validator: PValidator): Boolean;
BEGIN
AppendError := False; { Preset false }
If (Data <> Nil) Then
With Validator^ Do
If (Options AND voOnAppend <> 0) AND { Check options }
(CurPos <> Length(Data^)) AND { Exceeds max length }
NOT IsValidInput(Data^, True) Then Begin { Check data valid }
Error; { Call error }
AppendError := True; { Return true }
End;
END;
BEGIN
Valid := Inherited Valid(Command); { Call ancestor }
If (Validator <> Nil) AND (Data <> Nil) AND { Validator present }
(State AND sfDisabled = 0) Then { Not disabled }
If (Command = cmValid) Then { Valid command }
Valid := Validator^.Status = vsOk { Validator result }
Else If (Command <> cmCancel) Then { Not cancel command }
If AppendError(Validator) OR { Append any error }
NOT Validator^.Valid(Data^) Then Begin { Check validator }
Select; { Reselect view }
Valid := False; { Return false }
End;
END;
{--TInputLine---------------------------------------------------------------}
{ Draw -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.Draw;
VAR Color: Byte; X, L, R: Sw_Integer; S, T: String;
BEGIN
If (State AND sfFocused = 0) Then Color := 1 { Not focused colour }
Else Color := 2; { Focused colour }
If CanScroll(-1) Then WriteStr(0, 0, LeftArr, 4); { Set left scroll mark }
If CanScroll(1) Then WriteStr(-(RawSize.X + 1 -
TextWidth(RightArr)), 0, RightArr, 4); { Set right scroll mark }
If (Data <> Nil) Then S := Copy(Data^, FirstPos+1,
Length(Data^)-FirstPos) Else S := ''; { Fetch data string }
X := TextWidth(LeftArr); { left arrow width }
While (TextWidth(S) > ((RawSize.X+1)-X-TextWidth(
RightArr))) Do Delete(S, Length(S), 1); { Cut to right length }
If (State AND sfFocused <> 0) Then Begin
L := SelStart - FirstPos; { Selected left end }
R := SelEnd - FirstPos; { Selected right end }
If (L < 0) Then L := 0; { Fix any negative }
If (R > Length(S)) Then R := Length(S); { Fix to long case }
If (L > 0) Then Begin
T := Copy(S, 1, L); { Unhighlight bit }
WriteStr(-X, 0, T, Color); { Write string to screen }
X := X + TextWidth(T); { New x position }
Delete(S, 1, L); { Reduce string }
End;
If (L < R) Then Begin
T := Copy(S, 1, R-L); { Highlight bit }
WriteStr(-X, 0, T, 3); { Write string to screen }
X := X + TextWidth(T); { New x position }
Delete(S, 1, R-L); { Reduce string }
End;
If (Length(S) > 0) Then
WriteStr(-X, 0, S, Color); { Write string to screen }
End Else WriteStr(-X, 0, S, Color); { Write string to screen }
Cursor.X := CurPos - FirstPos + 1; { Update cursor position }
END;
{--TInputLine---------------------------------------------------------------}
{ DrawbackGround -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.DrawBackGround;
BEGIN
Inherited DrawBackGround; { Call ancestor }
END;
{--TInputLine---------------------------------------------------------------}
{ DrawCursor -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 05Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.DrawCursor;
VAR I, X: Sw_Integer; S: String;
BEGIN
if (TextModeGFV) then
begin
Cursor.Y:=0;
Cursor.X:=CurPos-FirstPos+1;
TView.ResetCursor;
end
else If (State AND sfFocused <> 0) Then Begin { Focused window }
X := TextWidth(LeftArr); { Preset x position }
I := 0; { Preset cursor width }
If (Data <> Nil) Then Begin { Data pointer valid }
S := Copy(Data^, FirstPos+1, CurPos-FirstPos); { Copy the string }
X := X + TextWidth(S); { Calculate position }
If (State AND sfCursorIns <> 0) Then { Check insert mode }
If ((CurPos+1) <= Length(Data^)) Then
I := TextWidth(Data^[CurPos+1]) { Insert caret width }
Else I := FontWidth; { At end use fontwidth }
End;
If (State AND sfCursorIns <> 0) Then Begin { Insert mode }
If ((CurPos+1) <= Length(Data^)) Then { Not beyond end }
WriteStr(-X, 0, Data^[CurPos+1], 5) { Create block cursor }
Else ClearArea(X, 0, X+I, FontHeight, Green);{ Line cursor }
End Else ClearArea(X, 0, X+I, FontHeight, Green);{ Line cursor }
End;
END;
{--TInputLine---------------------------------------------------------------}
{ SelectAll -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.SelectAll (Enable: Boolean);
BEGIN
CurPos := 0; { Cursor to start }
FirstPos := 0; { First pos to start }
SelStart := 0; { Selected at start }
If Enable AND (Data <> Nil) Then
SelEnd := Length(Data^) Else SelEnd := 0; { Selected which end }
DrawView; { Now redraw the view }
END;
{--TInputLine---------------------------------------------------------------}
{ SetValidator -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.SetValidator (AValid: PValidator);
BEGIN
If (Validator <> Nil) Then Validator^.Free; { Release validator }
Validator := AValid; { Set new validator }
END;
{--TInputLine---------------------------------------------------------------}
{ SetState -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.SetState (AState: Word; Enable: Boolean);
BEGIN
Inherited SetState(AState, Enable); { Call ancestor }
If (AState = sfSelected) OR ((AState = sfActive)
AND (State and sfSelected <> 0)) Then
SelectAll(Enable) Else { Call select all }
If (AState = sfFocused) Then DrawView; { Redraw for focus }
END;
{--TInputLine---------------------------------------------------------------}
{ GetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.GetData (Var Rec);
BEGIN
If (Data <> Nil) Then Begin { Data ptr valid }
If (Validator = Nil) OR (Validator^.Transfer(Data^,
@Rec, vtGetData) = 0) Then Begin { No validator/data }
FillChar(Rec, DataSize, #0); { Clear the data area }
Move(Data^, Rec, Length(Data^) + 1); { Transfer our data }
End;
End Else FillChar(Rec, DataSize, #0); { Clear the data area }
END;
{--TInputLine---------------------------------------------------------------}
{ SetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.SetData (Var Rec);
BEGIN
If (Data <> Nil) Then Begin { Data ptr valid }
If (Validator = Nil) OR (Validator^.Transfer(
Data^, @Rec, vtSetData) = 0) Then { No validator/data }
Move(Rec, Data^[0], DataSize); { Set our data }
End;
SelectAll(True); { Now select all }
END;
{--TInputLine---------------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.Store (Var S: TStream);
VAR w: Word;
BEGIN
TView.Store(S); { Implict TView.Store }
w:=MaxLen;S.Write(w, SizeOf(w)); { Read max length }
w:=CurPos;S.Write(w, SizeOf(w)); { Read cursor position }
w:=FirstPos;S.Write(w, SizeOf(w)); { Read first position }
w:=SelStart;S.Write(w, SizeOf(w)); { Read selected start }
w:=SelEnd;S.Write(w, SizeOf(w)); { Read selected end }
S.WriteStr(Data); { Write the data }
S.Put(Validator); { Write any validator }
END;
{--TInputLine---------------------------------------------------------------}
{ HandleEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TInputLine.HandleEvent (Var Event: TEvent);
CONST PadKeys = [$47, $4B, $4D, $4F, $73, $74];
VAR WasAppending: Boolean; ExtendBlock: Boolean; OldData: String;
Delta, Anchor, OldCurPos, OldFirstPos, OldSelStart, OldSelEnd: Sw_Integer;
FUNCTION MouseDelta: Sw_Integer;
BEGIN
If (Event.Where.X <= RawOrigin.X+TextWidth(LeftArr))
Then MouseDelta := -1 Else { To left of text area }
If ((Event.Where.X-RawOrigin.X) >= RawSize.X -
TextWidth(RightArr)) Then MouseDelta := 1 { To right of text area }
Else MouseDelta := 0; { In area return 0 }
END;
FUNCTION MousePos: Sw_Integer;
VAR Mp, Tw, Pos: Sw_Integer; S: String;
BEGIN
Mp := Event.Where.X - RawOrigin.X; { Mouse position }
If (Data <> Nil) Then S := Copy(Data^, FirstPos+1,
Length(Data^)-FirstPos) Else S := ''; { Text area string }
Tw := TextWidth(LeftArr); { Text width }
Pos := 0; { Zero position }
While (Mp > Tw) AND (Pos <= Length(S)) Do Begin { Still text to right }
Tw := Tw + TextWidth(S[Pos+1]); { Add next character }
Inc(Pos); { Next character }
End;
If (Pos > 0) Then Dec(Pos);
MousePos := FirstPos + Pos; { Return mouse position }
END;
PROCEDURE DeleteSelect;
BEGIN
If (SelStart <> SelEnd) Then Begin { An area selected }
If (Data <> Nil) Then
Delete(Data^, SelStart+1, SelEnd-SelStart); { Delete the text }
CurPos := SelStart; { Set cursor position }
End;
END;
PROCEDURE AdjustSelectBlock;
BEGIN
If (CurPos < Anchor) Then Begin { Selection backwards }
SelStart := CurPos; { Start of select }
SelEnd := Anchor; { End of select }
End Else Begin
SelStart := Anchor; { Start of select }
SelEnd := CurPos; { End of select }
End;
END;
PROCEDURE SaveState;
BEGIN
If (Validator <> Nil) Then Begin { Check for validator }
If (Data <> Nil) Then OldData := Data^; { Hold data }
OldCurPos := CurPos; { Hold cursor position }
OldFirstPos := FirstPos; { Hold first position }
OldSelStart := SelStart; { Hold select start }
OldSelEnd := SelEnd; { Hold select end }
If (Data = Nil) Then WasAppending := True { Invalid data ptr }
Else WasAppending := Length(Data^) = CurPos; { Hold appending state }
End;
END;
PROCEDURE RestoreState;
BEGIN
If (Validator <> Nil) Then Begin { Validator valid }
If (Data <> Nil) Then Data^ := OldData; { Restore data }
CurPos := OldCurPos; { Restore cursor pos }
FirstPos := OldFirstPos; { Restore first pos }
SelStart := OldSelStart; { Restore select start }
SelEnd := OldSelEnd; { Restore select end }
End;
END;
FUNCTION CheckValid (NoAutoFill: Boolean): Boolean;
VAR OldLen: Sw_Integer; NewData: String;
BEGIN
If (Validator <> Nil) Then Begin { Validator valid }
CheckValid := False; { Preset false return }
If (Data <> Nil) Then OldLen := Length(Data^); { Hold old length }
If (Validator^.Options AND voOnAppend = 0) OR
(WasAppending AND (CurPos = OldLen)) Then Begin
If (Data <> Nil) Then NewData := Data^ { Hold current data }
Else NewData := ''; { Set empty string }
If NOT Validator^.IsValidInput(NewData,
NoAutoFill) Then RestoreState Else Begin
If (Length(NewData) > MaxLen) Then { Exceeds maximum }
SetLength(NewData, MaxLen); { Set string length }
If (Data <> Nil) Then Data^ := NewData; { Set data value }
If (Data <> Nil) AND (CurPos >= OldLen) { Cursor beyond end }
AND (Length(Data^) > OldLen) Then { Cursor beyond string }
CurPos := Length(Data^); { Set cursor position }
CheckValid := True; { Return true result }
End;
End Else Begin
CheckValid := True; { Preset true return }
If (CurPos = OldLen) AND (Data <> Nil) Then { Lengths match }
If NOT Validator^.IsValidInput(Data^,
False) Then Begin { Check validator }
Validator^.Error; { Call error }
CheckValid := False; { Return false result }
End;
End;
End Else CheckValid := True; { No validator }
END;
BEGIN
Inherited HandleEvent(Event); { Call ancestor }
If (State AND sfSelected <> 0) Then Begin { View is selected }
Case Event.What Of
evNothing: Exit; { Speed up exit }
evMouseDown: Begin { Mouse down event }
Delta := MouseDelta; { Calc scroll value }
If CanScroll(Delta) Then Begin { Can scroll }
Repeat
If CanScroll(Delta) Then Begin { Still can scroll }
Inc(FirstPos, Delta); { Move start position }
DrawView; { Redraw the view }
End;
Until NOT MouseEvent(Event, evMouseAuto); { Until no mouse auto }
End Else If Event.Double Then { Double click }
SelectAll(True) Else Begin { Select whole text }
Anchor := MousePos; { Start of selection }
Repeat
If (Event.What = evMouseAuto) { Mouse auto event }
Then Begin
Delta := MouseDelta; { New position }
If CanScroll(Delta) Then { If can scroll }
Inc(FirstPos, Delta);
End;
CurPos := MousePos; { Set cursor position }
AdjustSelectBlock; { Adjust selected }
DrawView; { Redraw the view }
Until NOT MouseEvent(Event, evMouseMove
+ evMouseAuto); { Until mouse released }
End;
ClearEvent(Event); { Clear the event }
End;
evKeyDown: Begin
SaveState; { Save state of view }
Event.KeyCode := CtrlToArrow(Event.KeyCode); { Convert keycode }
If (Event.ScanCode IN PadKeys) AND
(GetShiftState AND $03 <> 0) Then Begin { Mark selection active }
Event.CharCode := #0; { Clear char code }
If (CurPos = SelEnd) Then { Find if at end }
Anchor := SelStart Else { Anchor from start }
Anchor := SelEnd; { Anchor from end }
ExtendBlock := True; { Extended block true }
End Else ExtendBlock := False; { No extended block }
Case Event.KeyCode Of
kbLeft: If (CurPos > 0) Then Dec(CurPos); { Move cursor left }
kbRight: If (Data <> Nil) AND { Move right cursor }
(CurPos < Length(Data^)) Then Begin { Check not at end }
Inc(CurPos); { Move cursor }
CheckValid(True); { Check if valid }
End;
kbHome: CurPos := 0; { Move to line start }
kbEnd: Begin { Move to line end }
If (Data = Nil) Then CurPos := 0 { Invalid data ptr }
Else CurPos := Length(Data^); { Set cursor position }
CheckValid(True); { Check if valid }
End;
kbBack: If (Data <> Nil) AND (CurPos > 0) { Not at line start }
Then Begin
Delete(Data^, CurPos, 1); { Backspace over char }
Dec(CurPos); { Move cursor back one }
If (FirstPos > 0) Then Dec(FirstPos); { Move first position }
CheckValid(True); { Check if valid }
End;
kbDel: If (Data <> Nil) Then Begin { Delete character }
If (SelStart = SelEnd) Then { Select all on }
If (CurPos < Length(Data^)) Then Begin { Cursor not at end }
SelStart := CurPos; { Set select start }
SelEnd := CurPos + 1; { Set select end }
End;
DeleteSelect; { Deselect selection }
CheckValid(True); { Check if valid }
End;
kbIns: SetState(sfCursorIns, State AND
sfCursorIns = 0); { Flip insert state }
Else Case Event.CharCode Of
' '..#255: If (Data <> Nil) Then Begin { Character key }
If (State AND sfCursorIns <> 0) Then
Delete(Data^, CurPos + 1, 1) Else { Overwrite character }
DeleteSelect; { Deselect selected }
If CheckValid(True) Then Begin { Check data valid }
If (Length(Data^) < MaxLen) Then { Must not exceed maxlen }
Begin
If (FirstPos > CurPos) Then
FirstPos := CurPos; { Advance first position }
Inc(CurPos); { Increment cursor }
Insert(Event.CharCode, Data^,
CurPos); { Insert the character }
End;
CheckValid(False); { Check data valid }
End;
End;
^Y: If (Data <> Nil) Then Begin { Clear all data }
Data^ := ''; { Set empty string }
CurPos := 0; { Cursor to start }
End;
Else Exit; { Unused key }
End
End;
If ExtendBlock Then AdjustSelectBlock { Extended block }
Else Begin
SelStart := CurPos; { Set select start }
SelEnd := CurPos; { Set select end }
End;
If (FirstPos > CurPos) Then
FirstPos := CurPos; { Advance first pos }
If (Data <> Nil) Then OldData := Copy(Data^,
FirstPos+1, CurPos-FirstPos) { Text area string }
Else OldData := ''; { Empty string }
Delta := FontWidth; { Safety = 1 char }
While (TextWidth(OldData) > ((RawSize.X+1)-Delta)
- TextWidth(LeftArr) - TextWidth(RightArr)) { Check text fits }
Do Begin
Inc(FirstPos); { Advance first pos }
OldData := Copy(Data^, FirstPos+1,
CurPos-FirstPos) { Text area string }
End;
DrawView; { Redraw the view }
ClearEvent(Event); { Clear the event }
End;
End;
End;
END;
{***************************************************************************}
{ TInputLine OBJECT PRIVATE METHODS }
{***************************************************************************}
{--TInputLine---------------------------------------------------------------}
{ CanScroll -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION TInputLine.CanScroll (Delta: Sw_Integer): Boolean;
VAR S: String;
BEGIN
If (Delta < 0) Then CanScroll := FirstPos > 0 { Check scroll left }
Else If (Delta > 0) Then Begin
If (Data = Nil) Then S := '' Else { Data ptr invalid }
S := Copy(Data^, FirstPos+1, Length(Data^)
- FirstPos); { Fetch max string }
CanScroll := (TextWidth(S)) > (RawSize.X -
TextWidth(LeftArr) - TextWidth(RightArr)); { Check scroll right }
End Else CanScroll := False; { Zero so no scroll }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TButton OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TButton------------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TButton.Init (Var Bounds: TRect; ATitle: TTitleStr;
ACommand: Word; AFlags: Word);
BEGIN
Inherited Init(Bounds); { Call ancestor }
EventMask := EventMask OR evBroadcast; { Handle broadcasts }
GOptions := GOptions OR goDrawFocus; { Set new option mask }
Options := Options OR (ofSelectable + ofFirstClick
+ ofPreProcess + ofPostProcess); { Set option flags }
If NOT CommandEnabled(ACommand) Then
State := State OR sfDisabled; { Check command state }
Flags := AFlags; { Hold flags }
If (AFlags AND bfDefault <> 0) Then AmDefault := True
Else AmDefault := False; { Check if default }
Title := NewStr(ATitle); { Hold title string }
Command := ACommand; { Hold button command }
TabMask := TabMask OR (tmLeft + tmRight +
tmTab + tmShiftTab + tmUp + tmDown); { Set tab masks }
END;
{--TButton------------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TButton.Load (Var S: TStream);
BEGIN
Inherited Load(S); { Call ancestor }
Title := S.ReadStr; { Read title }
S.Read(Command, SizeOf(Command)); { Read command }
S.Read(Flags, SizeOf(Flags)); { Read flags }
S.Read(AmDefault, SizeOf(AmDefault)); { Read if default }
If NOT CommandEnabled(Command) Then { Check command state }
State := State OR sfDisabled Else { Command disabled }
State := State AND NOT sfDisabled; { Command enabled }
END;
{--TButton------------------------------------------------------------------}
{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
DESTRUCTOR TButton.Done;
BEGIN
If (Title <> Nil) Then DisposeStr(Title); { Dispose title }
Inherited Done; { Call ancestor }
END;
{--TButton------------------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 25Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TButton.GetPalette: PPalette;
CONST P: String[Length(CButton)] = CButton; { Always normal string }
BEGIN
GetPalette := @P; { Get button palette }
END;
{--TButton------------------------------------------------------------------}
{ Press -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 29Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TButton.Press;
VAR E: TEvent;
BEGIN
Message(Owner, evBroadcast, cmRecordHistory, Nil); { Message for history }
If (Flags AND bfBroadcast <> 0) Then { Broadcasting button }
Message(Owner, evBroadcast, Command, @Self) { Send message }
Else Begin
E.What := evCommand; { Command event }
E.Command := Command; { Set command value }
E.InfoPtr := @Self; { Pointer to self }
PutEvent(E); { Put event on queue }
End;
END;
{--TButton------------------------------------------------------------------}
{ DrawFocus -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TButton.DrawFocus;
VAR B: Byte; I, J, Pos: Sw_Integer;
Bc: Word; Db: TDrawBuffer;
StoreUseFixedFont: boolean;
C : char;
BEGIN
If not TextModeGFV then Begin
If DownFlag Then B := 7 Else B := 0; { Shadow colour }
GraphRectangle(0, 0, RawSize.X, RawSize.Y, B); { Draw backing shadow }
GraphRectangle(1, 1, RawSize.X-1, RawSize.Y-1, B); { Draw backing shadow }
If DownFlag Then B := 0 Else B := 15; { Highlight colour }
GraphLine(0, RawSize.Y, 0, 0, B);
GraphLine(1, RawSize.Y-1, 1, 1, B); { Left highlights }
GraphLine(0, 0, RawSize.X, 0, B);
GraphLine(1, 1, RawSize.X-1, 1, B); { Top highlights }
If DownFlag Then B := 8 Else B := 7; { Select backing }
If (State AND sfFocused <> 0) AND
(DownFlag = False) Then B := 14; { Show as focused }
GraphRectangle(2, 2, RawSize.X-2, RawSize.Y-2, B); { Draw first border }
GraphRectangle(3, 3, RawSize.X-3, RawSize.Y-3, B); { Draw next border }
End;
If (State AND sfDisabled <> 0) Then { Button disabled }
Bc := GetColor($0404) Else Begin { Disabled colour }
Bc := GetColor($0501); { Set normal colour }
If (State AND sfActive <> 0) Then { Button is active }
If (State AND sfSelected <> 0) Then
Bc := GetColor($0703) Else { Set selected colour }
If AmDefault Then Bc := GetColor($0602); { Set is default colour }
End;
If (Title <> Nil) Then Begin { We have a title }
If (Flags AND bfLeftJust = 0) Then Begin { Not left set title }
I := TextWidth(Title^); { Fetch title width }
I := (RawSize.X - I) DIV 2; { Centre in button }
End Else I := FontWidth; { Left edge of button }
If not TextModeGFV then Begin
MoveCStr(Db[0], Title^, Bc); { Move title to buffer }
GOptions := GOptions OR goGraphView; { Graphics co-ords mode }
StoreUseFixedFont:=UseFixedFont;
UseFixedFont:=false;
WriteLine(I, FontHeight DIV 2, CStrLen(Title^),
1, Db); { Write the title }
GOptions := GOptions AND NOT goGraphView; { Return to normal mode }
UseFixedFont:=StoreUseFixedFont;
End Else Begin
I:=I div SysFontWidth;
If DownFlag then
begin
MoveChar(Db[0],' ',GetColor(8),1);
Pos:=1;
end
else
pos:=0;
For j:=0 to I-1 do
MoveChar(Db[pos+j],' ',Bc,1);
MoveCStr(Db[I+pos], Title^, Bc); { Move title to buffer }
For j:=pos+CStrLen(Title^)+I to size.X-2 do
MoveChar(Db[j],' ',Bc,1);
If not DownFlag then
Bc:=GetColor(8);
MoveChar(Db[Size.X-1],' ',Bc,1);
WriteLine(0, 0, Size.X,
1, Db); { Write the title }
If Size.Y>1 then Begin
Bc:=GetColor(8);
if not DownFlag then
begin
c:='<27>';
MoveChar(Db,c,Bc,1);
WriteLine(Size.X-1, 0, 1, 1, Db);
end;
MoveChar(Db,' ',Bc,1);
if DownFlag then c:=' '
else c:='<27>';
MoveChar(Db[1],c,Bc,Size.X-1);
WriteLine(0, 1, Size.X, 1, Db);
End;
End;
End;
END;
{--TButton------------------------------------------------------------------}
{ DrawState -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TButton.DrawState (Down: Boolean);
BEGIN
DownFlag := Down; { Set down flag }
SetDrawMask(vdFocus); { Set focus mask }
DrawView; { Redraw the view }
END;
{--TButton------------------------------------------------------------------}
{ MakeDefault -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TButton.MakeDefault (Enable: Boolean);
VAR C: Word;
BEGIN
If (Flags AND bfDefault=0) Then Begin { Not default }
If Enable Then C := cmGrabDefault
Else C := cmReleaseDefault; { Change default }
Message(Owner, evBroadcast, C, @Self); { Message to owner }
AmDefault := Enable; { Set default flag }
DrawView; { Now redraw button }
End;
END;
{--TButton------------------------------------------------------------------}
{ SetState -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TButton.SetState (AState: Word; Enable: Boolean);
BEGIN
Inherited SetState(AState, Enable); { Call ancestor }
If (AState AND (sfSelected + sfActive) <> 0) { Changing select }
Then DrawView; { Redraw required }
If (AState AND sfFocused <> 0) Then
MakeDefault(Enable); { Check for default }
END;
{--TButton------------------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TButton.Store (Var S: TStream);
BEGIN
TView.Store(S); { Implict TView.Store }
S.WriteStr(Title); { Store title string }
S.Write(Command, SizeOf(Command)); { Store command }
S.Write(Flags, SizeOf(Flags)); { Store flags }
S.Write(AmDefault, SizeOf(AmDefault)); { Store default flag }
END;
{--TButton------------------------------------------------------------------}
{ HandleEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 05Sep99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TButton.HandleEvent (Var Event: TEvent);
VAR Down: Boolean; C: Char; ButRect: TRect;
BEGIN
ButRect.A := RawOrigin; { Get origin point }
ButRect.B.X := RawOrigin.X + RawSize.X; { Calc right side }
ButRect.B.Y := RawOrigin.Y + RawSize.Y; { Calc bottom }
If (Event.What = evMouseDown) Then Begin { Mouse down event }
If NOT MouseInView(Event.Where) Then Begin { If point not in view }
ClearEvent(Event); { Clear the event }
Exit; { Speed up exit }
End;
End;
If (Flags AND bfGrabFocus <> 0) Then { Check focus grab }
Inherited HandleEvent(Event); { Call ancestor }
Case Event.What Of
evNothing: Exit; { Speed up exit }
evMouseDown: Begin
If (State AND sfDisabled = 0) Then Begin { Button not disabled }
Down := False; { Clear down flag }
Repeat
If (Down <> ButRect.Contains(Event.Where)) { State has changed }
Then Begin
Down := NOT Down; { Invert down flag }
DrawState(Down); { Redraw button }
End;
Until NOT MouseEvent(Event, evMouseMove); { Wait for mouse move }
If Down Then Begin { Button is down }
Press; { Send out command }
DrawState(False); { Draw button up }
End;
End;
ClearEvent(Event); { Event was handled }
End;
evKeyDown: Begin
If (Title <> Nil) Then C := HotKey(Title^) { Key title hotkey }
Else C := #0; { Invalid title }
If (Event.KeyCode = GetAltCode(C)) OR { Alt char }
(Owner^.Phase = phPostProcess) AND (C <> #0)
AND (Upcase(Event.CharCode) = C) OR { Matches hotkey }
(State AND sfFocused <> 0) AND { View focused }
((Event.CharCode = ' ') OR { Space bar }
(Event.KeyCode=kbEnter)) Then Begin { Enter key }
DrawState(True); { Draw button down }
Press; { Send out command }
ClearEvent(Event); { Clear the event }
DrawState(False); { Draw button up }
End;
End;
evBroadcast:
Case Event.Command of
cmDefault: If AmDefault AND { Default command }
(State AND sfDisabled = 0) Then Begin { Button enabled }
Press; { Send out command }
ClearEvent(Event); { Clear the event }
End;
cmGrabDefault, cmReleaseDefault: { Grab and release cmd }
If (Flags AND bfDefault <> 0) Then Begin { Change button state }
AmDefault := Event.Command = cmReleaseDefault;
DrawView; { Redraw the view }
End;
cmCommandSetChanged: Begin { Command set changed }
SetState(sfDisabled, NOT
CommandEnabled(Command)); { Set button state }
DrawView; { Redraw the view }
End;
End;
End;
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TCluster OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
CONST TvClusterClassName = 'TVCLUSTER';
{--TCluster-----------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28May98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TCluster.Init (Var Bounds: TRect; AStrings: PSItem);
VAR I: Sw_Integer; P: PSItem;
BEGIN
Inherited Init(Bounds); { Call ancestor }
GOptions := GOptions OR goDrawFocus; { Draw focus view }
Options := Options OR (ofSelectable + ofFirstClick
+ ofPreProcess + ofPostProcess + ofVersion20); { Set option masks }
I := 0; { Zero string count }
P := AStrings; { First item }
While (P <> Nil) Do Begin
Inc(I); { Count 1 item }
P := P^.Next; { Move to next item }
End;
Strings.Init(I, 0); { Create collection }
While (AStrings <> Nil) Do Begin
P := AStrings; { Transfer item ptr }
Strings.AtInsert(Strings.Count, AStrings^.Value);{ Insert string }
AStrings := AStrings^.Next; { Move to next item }
Dispose(P); { Dispose prior item }
End;
Sel := 0;
if TextModeGFV then
begin
SetCursor(2,0);
ShowCursor;
end;
EnableMask := $FFFFFFFF; { Enable bit masks }
END;
{--TCluster-----------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TCluster.Load (Var S: TStream);
VAR w: word;
BEGIN
Inherited Load(S); { Call ancestor }
If ((Options AND ofVersion) >= ofVersion20) Then { Version 2 TV view }
Begin
S.Read(Value, SizeOf(Value)); { Read value }
S.Read(Sel, Sizeof(Sel)); { Read select item }
S.Read(EnableMask, SizeOf(EnableMask)) { Read enable masks }
End
Else
Begin
w:=Value;
S.Read(w, SizeOf(w)); Value:=w; { Read value }
S.Read(Sel, SizeOf(Sel)); { Read select item }
EnableMask := $FFFFFFFF; { Enable all masks }
Options := Options OR ofVersion20; { Set version 2 mask }
End;
If (Options AND ofGFVModeView <> 0) Then { GFV mode view check }
S.Read(Id, Sizeof(Id)); { Read view id }
Strings.Load(S); { Load string data }
SetButtonState(0, True); { Set button state }
END;
{--TCluster-----------------------------------------------------------------}
{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Jul99 LdB }
{---------------------------------------------------------------------------}
DESTRUCTOR TCluster.Done;
VAR I: Sw_Integer;
BEGIN
Strings.Done; { Dispose of strings }
Inherited Done; { Call ancestor }
END;
{--TCluster-----------------------------------------------------------------}
{ DataSize -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.DataSize: Sw_Word;
BEGIN
DataSize := SizeOf(Sw_Word); { Exchanges a word }
END;
{--TCluster-----------------------------------------------------------------}
{ GetHelpCtx -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.GetHelpCtx: Word;
BEGIN
If (HelpCtx = hcNoContext) Then { View has no help }
GetHelpCtx := hcNoContext Else { No help context }
GetHelpCtx := HelpCtx + Sel; { Help of selected }
END;
{--TCluster-----------------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.GetPalette: PPalette;
CONST P: String[Length(CCluster)] = CCluster; { Always normal string }
BEGIN
GetPalette := @P; { Cluster palette }
END;
{--TCluster-----------------------------------------------------------------}
{ Mark -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04May98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.Mark (Item: Sw_Integer): Boolean;
BEGIN
Mark := False; { Default false }
END;
{--TCluster-----------------------------------------------------------------}
{ MultiMark -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04May98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.MultiMark (Item: Sw_Integer): Byte;
BEGIN
MultiMark := Byte(Mark(Item) = True); { Return multi mark }
END;
{--TCluster-----------------------------------------------------------------}
{ ButtonState -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.ButtonState (Item: Sw_Integer): Boolean;
BEGIN
If (Item > 31) Then ButtonState := False Else { Impossible item }
ButtonState := ((1 SHL Item) AND EnableMask)<>0; { Return true/false }
END;
{--TCluster-----------------------------------------------------------------}
{ DrawFocus -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Jul99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.DrawFocus;
BEGIN
END;
{--TCluster-----------------------------------------------------------------}
{ Press -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.Press (Item: Sw_Integer);
VAR P: PView;
BEGIN
P := TopView;
If (Id <> 0) AND (P <> Nil) Then NewMessage(P,
evCommand, cmIdCommunicate, Id, Value, @Self); { Send new message }
END;
{--TCluster-----------------------------------------------------------------}
{ MovedTo -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.MovedTo (Item: Sw_Integer);
BEGIN { Abstract method }
END;
{--TCluster-----------------------------------------------------------------}
{ SetState -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.SetState (AState: Word; Enable: Boolean);
BEGIN
Inherited SetState(AState, Enable); { Call ancestor }
If (AState AND sfFocused <> 0) Then Begin
SetDrawMask(vdFocus OR vdInner); { Set redraw masks }
DrawView; { Redraw masked areas }
End;
END;
{--TCluster-----------------------------------------------------------------}
{ DrawMultiBox -> Platforms DOS/DPMI/WIN/NT - Updated 05Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.DrawMultiBox (Const Icon, Marker: String);
VAR I, J, K, Cur, Col: Sw_Integer; CNorm, CSel, CDis, Color: Word; B: TDrawBuffer;
Tb, SCOff: Byte;
BEGIN
CNorm := GetColor($0301); { Normal colour }
CSel := GetColor($0402); { Selected colour }
CDis := GetColor($0505); { Disabled colour }
If (Options AND ofFramed <>0) OR { Normal frame }
(GOptions AND goThickFramed <>0) Then { Thick frame }
K := 1 Else K := 0; { Select offset }
For I := 0 To Size.Y-K-K-1 Do Begin { For each line }
MoveChar(B, ' ', Byte(CNorm), Size.X-K-K); { Fill buffer }
For J := 0 To (Strings.Count - 1) DIV Size.Y + 1
Do Begin
Cur := J*Size.Y + I; { Current line }
If (Cur < Strings.Count) Then Begin
Col := Column(Cur); { Calc column }
If (Col + CStrLen(PString(Strings.At(Cur))^)+
5 < Sizeof(TDrawBuffer) DIV SizeOf(Word))
AND (Col < Size.X-K-K) Then Begin { Text fits in column }
If NOT ButtonState(Cur) Then
Color := CDis Else If (Cur = Sel) AND { Disabled colour }
(State and sfFocused <> 0) Then
Color := CSel Else { Selected colour }
Color := CNorm; { Normal colour }
MoveChar(B[Col], ' ', Byte(Color),
Size.X-K-K-Col); { Set this colour }
MoveStr(B[Col], Icon, Byte(Color)); { Transfer icon string }
WordRec(B[Col+2]).Lo := Byte(Marker[
MultiMark(Cur) + 1]); { Transfer marker }
MoveCStr(B[Col+5], PString(Strings.At(
Cur))^, Color); { Transfer item string }
If ShowMarkers AND (State AND sfFocused <> 0)
AND (Cur = Sel) Then Begin { Current is selected }
WordRec(B[Col]).Lo := Byte(SpecialChars[0]);
WordRec(B[Column(Cur+Size.Y)-1]).Lo
:= Byte(SpecialChars[1]); { Set special character }
End;
End;
End;
End;
WriteBuf(K, K+I, Size.X-K-K, 1, B); { Write buffer }
End;
if TextModeGFV then
SetCursor(Column(Sel)+2,Row(Sel));
END;
{--TCluster-----------------------------------------------------------------}
{ DrawBox -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.DrawBox (Const Icon: String; Marker: Char);
BEGIN
DrawMultiBox(Icon, ' '+Marker); { Call draw routine }
END;
{--TCluster-----------------------------------------------------------------}
{ SetButtonState -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.SetButtonState (AMask: Longint; Enable: Boolean);
VAR I: Sw_Integer; M: Longint;
BEGIN
If Enable Then EnableMask := EnableMask OR AMask { Set enable bit mask }
Else EnableMask := EnableMask AND NOT AMask; { Disable bit mask }
If (Strings.Count <= 32) Then Begin { Valid string number }
M := 1; { Preset bit masks }
For I := 1 To Strings.Count Do Begin { For each item string }
If ((M AND EnableMask) <> 0) Then Begin { Bit enabled }
Options := Options OR ofSelectable; { Set selectable option }
Exit; { Now exit }
End;
M := M SHL 1; { Create newbit mask }
End;
Options := Options AND NOT ofSelectable; { Make not selectable }
End;
END;
{--TCluster-----------------------------------------------------------------}
{ GetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04May98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.GetData (Var Rec);
BEGIN
sw_Word(Rec) := Value; { Return current value }
END;
{--TCluster-----------------------------------------------------------------}
{ SetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04May98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.SetData (Var Rec);
BEGIN
Value :=sw_Word(Rec); { Set current value }
SetDrawMask(vdFocus OR vdInner); { Set redraw mask }
DrawView; { Redraw masked areas }
END;
{--TCluster-----------------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.Store (Var S: TStream);
var
w : word;
BEGIN
TView.Store(S); { TView.Store called }
If ((Options AND ofVersion) >= ofVersion20) { Version 2 TV view }
Then Begin
S.Write(Value, SizeOf(Value)); { Write value }
S.Write(Sel, SizeOf(Sel)); { Write select item }
S.Write(EnableMask, SizeOf(EnableMask)); { Write enable masks }
End Else Begin
w:=Value;
S.Write(w, SizeOf(Word)); { Write value }
S.Write(Sel, SizeOf(Sel)); { Write select item }
End;
If (Options AND ofGFVModeView <> 0) Then { GFV mode view check }
S.Write(Id, SizeOf(Id)); { Write new id value }
Strings.Store(S); { Store strings }
END;
{--TCluster-----------------------------------------------------------------}
{ HandleEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCluster.HandleEvent (Var Event: TEvent);
VAR C: Char; I, J, S, Vh: Sw_Integer; Key: Word; Mouse: TPoint; Ts: PString;
PROCEDURE MoveSel;
BEGIN
If (I <= Strings.Count) Then Begin
Sel := S; { Set selected item }
MovedTo(Sel); { Move to selected }
SetDrawMask(vdInner OR vdFocus); { Set draw masks }
DrawView; { Now draw changes }
End;
END;
BEGIN
Inherited HandleEvent(Event); { Call ancestor }
If ((Options AND ofSelectable) = 0) Then Exit; { Check selectable }
If (Event.What = evMouseDown) Then Begin { MOUSE EVENT }
MakeLocal(Event.Where, Mouse); { Make point local }
I := FindSel(Mouse); { Find selected item }
If (I <> -1) Then { Check in view }
If ButtonState(I) Then Sel := I; { If enabled select }
SetDrawMask(vdFocus OR vdInner); { Set draw mask }
DrawView; { Now draw changes }
Repeat
MakeLocal(Event.Where, Mouse); { Make point local }
Until NOT MouseEvent(Event, evMouseMove); { Wait for mouse up }
MakeLocal(Event.Where, Mouse); { Make point local }
If (FindSel(Mouse) = Sel) AND ButtonState(Sel) { If valid/selected }
Then Begin
Press(Sel); { Call pressed }
SetDrawMask(vdFocus OR vdInner); { Set draw mask }
DrawView; { Now draw changes }
End;
ClearEvent(Event); { Event was handled }
End Else If (Event.What = evKeyDown) Then Begin { KEY EVENT }
If (Options AND ofFramed <> 0) OR { Normal frame }
(GOptions AND goThickFramed <> 0) Then { Thick frame }
J := 1 Else J := 0; { Adjust value }
Vh := Size.Y - J - J; { View height }
S := Sel; { Hold current item }
Key := CtrlToArrow(Event.KeyCode); { Convert keystroke }
Case Key Of
kbUp, kbDown, kbRight, kbLeft:
If (State AND sfFocused <> 0) Then Begin { Focused key event }
I := 0; { Zero process count }
Repeat
Inc(I); { Inc process count }
Case Key Of
kbUp: Dec(S); { Next item up }
kbDown: Inc(S); { Next item down }
kbRight: Begin { Next column across }
Inc(S, Vh); { Move to next column }
If (S >= Strings.Count) Then { No next column check }
S := (S+1) MOD Vh; { Move to last column }
End;
kbLeft: Begin { Prior column across }
Dec(S, Vh); { Move to prior column }
If (S < 0) Then S := ((Strings.Count +
Vh - 1) DIV Vh) * Vh + S - 1; { No prior column check }
End;
End;
If (S >= Strings.Count) Then S := 0; { Roll up to top }
If (S < 0) Then S := Strings.Count - 1; { Roll down to bottom }
Until ButtonState(S) OR (I > Strings.Count); { Repeat until select }
MoveSel; { Move to selected }
ClearEvent(Event); { Event was handled }
End;
Else Begin { Not an arrow key }
For I := 0 To Strings.Count-1 Do Begin { Scan each item }
Ts := Strings.At(I); { Fetch string pointer }
If (Ts <> Nil) Then C := HotKey(Ts^) { Check for hotkey }
Else C := #0; { No valid string }
If (GetAltCode(C) = Event.KeyCode) OR { Hot key for item }
(((Owner^.Phase = phPostProcess) OR { Owner in post process }
(State AND sfFocused <> 0)) AND (C <> #0) { Non zero hotkey }
AND (UpCase(Event.CharCode) = C)) { Matches current key }
Then Begin
If ButtonState(I) Then Begin { Check mask enabled }
If Focus Then Begin { Check view focus }
Sel := I; { Set selected }
MovedTo(Sel); { Move to selected }
Press(Sel); { Call pressed }
SetDrawMask(vdFocus OR vdInner); { Set draw mask }
DrawView; { Now draw changes }
End;
ClearEvent(Event); { Event was handled }
End;
Exit; { Now exit }
End;
End;
If (Event.CharCode = ' ') AND { Spacebar key }
(State AND sfFocused <> 0) AND { Check focused view }
ButtonState(Sel) Then Begin { Check item enabled }
Press(Sel); { Call pressed }
SetDrawMask(vdFocus OR vdInner); { Set draw mask }
DrawView; { Now draw changes }
ClearEvent(Event); { Event was handled }
End;
End;
End;
End;
END;
{***************************************************************************}
{ TCluster OBJECT PRIVATE METHODS }
{***************************************************************************}
{--TCluster-----------------------------------------------------------------}
{ FindSel -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.FindSel (P: TPoint): Sw_Integer;
VAR I, J, S, Vh: Sw_Integer; R: TRect;
BEGIN
GetExtent(R); { Get view extents }
If R.Contains(P) Then Begin { Point in view }
If (Options AND ofFramed <> 0) OR { Normal frame }
(GOptions AND goThickFramed <> 0) Then { Thick frame }
J := 1 Else J := 0; { Adjust value }
Vh := Size.Y - J - J; { View height }
I := 0; { Preset zero value }
While (P.X >= Column(I+Vh)) Do Inc(I, Vh); { Inc view size }
S := I + P.Y - J; { Line to select }
If ((S >= 0) AND (S < Strings.Count)) { Valid selection }
Then FindSel := S Else FindSel := -1; { Return selected item }
End Else FindSel := -1; { Point outside view }
END;
{--TCluster-----------------------------------------------------------------}
{ Row -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.Row (Item: Sw_Integer): Sw_Integer;
BEGIN
If (Options AND ofFramed <> 0) OR { Normal frame }
(GOptions AND goThickFramed <> 0) Then { Thick frame }
Row := Item MOD (Size.Y - 2) Else { Allow for frames }
Row := Item MOD Size.Y; { Normal mod value }
END;
{--TCluster-----------------------------------------------------------------}
{ Column -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 03Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCluster.Column (Item: Sw_Integer): Sw_Integer;
VAR I, J, Col, Width, L, Vh: Sw_Integer; Ts: PString;
BEGIN
If (Options AND ofFramed <> 0) OR { Normal frame }
(GOptions AND goThickFramed <> 0) Then { Thick frame }
J := 1 Else J := 0; { Adjust value }
Vh := Size.Y - J - J; { Vertical size }
If (Item >= Vh) Then Begin { Valid selection }
Width := 0; { Zero width }
Col := -6; { Start column at -6 }
For I := 0 To Item Do Begin { For each item }
If (I MOD Vh = 0) Then Begin { Start next column }
Inc(Col, Width + 6); { Add column width }
Width := 0; { Zero width }
End;
If (I < Strings.Count) Then Begin { Valid string }
Ts := Strings.At(I); { Transfer string }
If (Ts <> Nil) Then L := CStrLen(Ts^) { Length of string }
Else L := 0; { No string }
End;
If (L > Width) Then Width := L; { Hold longest string }
End;
Column := Col; { Return column }
End Else Column := 0; { Outside select area }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TRadioButtons OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TRadioButtons------------------------------------------------------------}
{ Mark -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TRadioButtons.Mark (Item: Sw_Integer): Boolean;
BEGIN
Mark := Item = Value; { True if item = value }
END;
{--TRadioButtons------------------------------------------------------------}
{ Draw -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04May98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TRadioButtons.DrawFocus;
CONST Button = ' ( ) ';
BEGIN
Inherited DrawFocus;
DrawMultiBox(Button, ' *'); { Redraw the text }
END;
{--TRadioButtons------------------------------------------------------------}
{ Press -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TRadioButtons.Press (Item: Sw_Integer);
BEGIN
Value := Item; { Set value field }
Inherited Press(Item); { Call ancestor }
END;
{--TRadioButtons------------------------------------------------------------}
{ MovedTo -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04May98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TRadioButtons.MovedTo (Item: Sw_Integer);
BEGIN
Value := Item; { Set value to item }
If (Id <> 0) Then NewMessage(Owner, evCommand,
cmIdCommunicate, Id, Value, @Self); { Send new message }
END;
{--TRadioButtons------------------------------------------------------------}
{ SetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04May98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TRadioButtons.SetData (Var Rec);
BEGIN
Sel := Sw_word(Rec); { Set selection }
Inherited SetData(Rec); { Call ancestor }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TCheckBoxes OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TCheckBoxes--------------------------------------------------------------}
{ Mark -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TCheckBoxes.Mark(Item: Sw_Integer): Boolean;
BEGIN
If (Value AND (1 SHL Item) <> 0) Then { Check if item ticked }
Mark := True Else Mark := False; { Return result }
END;
{--TCheckBoxes--------------------------------------------------------------}
{ Draw -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 04May98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCheckBoxes.DrawFocus;
CONST Button = ' [ ] ';
BEGIN
Inherited DrawFocus;
DrawMultiBox(Button, ' X'); { Redraw the text }
END;
{--TCheckBoxes--------------------------------------------------------------}
{ Press -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TCheckBoxes.Press (Item: Sw_Integer);
BEGIN
Value := Value XOR (1 SHL Item); { Flip the item mask }
Inherited Press(Item); { Call ancestor }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TMultiCheckBoxes OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TMultiCheckBoxes---------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 05Jun98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TMultiCheckBoxes.Init (Var Bounds: TRect; AStrings: PSItem;
ASelRange: Byte; AFlags: Word; Const AStates: String);
BEGIN
Inherited Init(Bounds, AStrings); { Call ancestor }
SelRange := ASelRange; { Hold select range }
Flags := AFlags; { Hold flags }
States := NewStr(AStates); { Hold string }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TMultiCheckBoxes.Load (Var S: TStream);
BEGIN
Inherited Load(S); { Call ancestor }
S.Read(SelRange, SizeOf(SelRange)); { Read select range }
S.Read(Flags, SizeOf(Flags)); { Read flags }
States := S.ReadStr; { Read strings }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
DESTRUCTOR TMultiCheckBoxes.Done;
BEGIN
If (States <> Nil) Then DisposeStr(States); { Dispose strings }
Inherited Done; { Call ancestor }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ DataSize -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TMultiCheckBoxes.DataSize: Sw_Word;
BEGIN
DataSize := SizeOf(LongInt); { Size to exchange }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ MultiMark -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TMultiCheckBoxes.MultiMark (Item: Sw_Integer): Byte;
BEGIN
MultiMark := (Value SHR (Word(Item) *
WordRec(Flags).Hi)) AND WordRec(Flags).Lo; { Return mark state }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ Draw -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TMultiCheckBoxes.DrawFocus;
CONST Button = ' [ ] ';
BEGIN
Inherited DrawFocus;
DrawMultiBox(Button, States^); { Draw the items }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ Press -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TMultiCheckBoxes.Press (Item: Sw_Integer);
VAR CurState: ShortInt;
BEGIN
CurState := (Value SHR (Word(Item) *
WordRec(Flags).Hi)) AND WordRec(Flags).Lo; { Hold current state }
Dec(CurState); { One down }
If (CurState >= SelRange) OR (CurState < 0) Then
CurState := SelRange - 1; { Roll if needed }
Value := (Value AND NOT (LongInt(WordRec(Flags).Lo)
SHL (Word(Item) * WordRec(Flags).Hi))) OR
(LongInt(CurState) SHL (Word(Item) *
WordRec(Flags).Hi)); { Calculate value }
Inherited Press(Item); { Call ancestor }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ GetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TMultiCheckBoxes.GetData (Var Rec);
BEGIN
Longint(Rec) := Value; { Return value }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ SetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TMultiCheckBoxes.SetData (Var Rec);
BEGIN
Value := Longint(Rec); { Set value }
SetDrawMask(vdFocus OR vdInner); { Set redraw mask }
DrawView; { Redraw masked areas }
END;
{--TMultiCheckBoxes---------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TMultiCheckBoxes.Store (Var S: TStream);
BEGIN
TCluster.Store(S); { TCluster store called }
S.Write(SelRange, SizeOf(SelRange)); { Write select range }
S.Write(Flags, SizeOf(Flags)); { Write select flags }
S.WriteStr(States); { Write strings }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TListBox OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
TYPE
TListBoxRec = PACKED RECORD
List: PCollection; { List collection ptr }
Selection: Word; { Selected item }
END;
{--TListBox-----------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TListBox.Init (Var Bounds: TRect; ANumCols: Sw_Word;
AScrollBar: PScrollBar);
BEGIN
Inherited Init(Bounds, ANumCols, Nil, AScrollBar); { Call ancestor }
SetRange(0); { Set range to zero }
END;
{--TListBox-----------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TListBox.Load (Var S: TStream);
BEGIN
Inherited Load(S); { Call ancestor }
List := PCollection(S.Get); { Fetch collection }
END;
{--TListBox-----------------------------------------------------------------}
{ DataSize -> Platforms DOS/DPMI/WIN/NT/Os2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TListBox.DataSize: Sw_Word;
BEGIN
DataSize := SizeOf(TListBoxRec); { Xchg data size }
END;
{--TListBox-----------------------------------------------------------------}
{ GetText -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TListBox.GetText (Item: Sw_Integer; MaxLen: Sw_Integer): String;
VAR P: PString;
BEGIN
GetText := ''; { Preset return }
If (List <> Nil) Then Begin { A list exists }
P := PString(List^.At(Item)); { Get string ptr }
If (P <> Nil) Then GetText := P^; { Return string }
End;
END;
{--TListBox-----------------------------------------------------------------}
{ NewList -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TListBox.NewList (AList: PCollection);
BEGIN
If (List <> Nil) Then Dispose(List, Done); { Dispose old list }
List := AList; { Hold new list }
If (AList <> Nil) Then SetRange(AList^.Count) { Set new item range }
Else SetRange(0); { Set zero range }
If (Range > 0) Then FocusItem(0); { Focus first item }
DrawView; { Redraw all view }
END;
{--TListBox-----------------------------------------------------------------}
{ GetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TListBox.GetData (Var Rec);
BEGIN
TListBoxRec(Rec).List := List; { Return current list }
TListBoxRec(Rec).Selection := Focused; { Return focused item }
END;
{--TListBox-----------------------------------------------------------------}
{ SetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TListBox.SetData (Var Rec);
BEGIN
NewList(TListBoxRec(Rec).List); { Hold new list }
FocusItem(TListBoxRec(Rec).Selection); { Focus selected item }
DrawView; { Redraw all view }
END;
{--TListBox-----------------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TListBox.Store (Var S: TStream);
BEGIN
TListViewer.Store(S); { TListViewer store }
S.Put(List); { Store list to stream }
END;
{****************************************************************************}
{ TListBox.DeleteFocusedItem }
{****************************************************************************}
procedure TListBox.DeleteFocusedItem;
begin
DeleteItem(Focused);
end;
{****************************************************************************}
{ TListBox.DeleteItem }
{****************************************************************************}
procedure TListBox.DeleteItem (Item : Sw_Integer);
begin
if (List <> nil) and (List^.Count > 0) and
((Item < List^.Count) and (Item > -1)) then begin
if IsSelected(Item) and (Item > 0) then
FocusItem(Item - 1);
List^.AtDelete(Item);
SetRange(List^.Count);
end;
end;
{****************************************************************************}
{ TListBox.FreeAll }
{****************************************************************************}
procedure TListBox.FreeAll;
begin
if (List <> nil) then
begin
List^.FreeAll;
SetRange(List^.Count);
end;
end;
{****************************************************************************}
{ TListBox.FreeFocusedItem }
{****************************************************************************}
procedure TListBox.FreeFocusedItem;
begin
FreeItem(Focused);
end;
{****************************************************************************}
{ TListBox.FreeItem }
{****************************************************************************}
procedure TListBox.FreeItem (Item : Sw_Integer);
begin
if (Item > -1) and (Item < Range) then
begin
List^.AtFree(Item);
if (Range > 1) and (Focused >= List^.Count) then
Dec(Focused);
SetRange(List^.Count);
end;
end;
{****************************************************************************}
{ TListBox.SetFocusedItem }
{****************************************************************************}
procedure TListBox.SetFocusedItem (Item : Pointer);
begin
FocusItem(List^.IndexOf(Item));
end;
{****************************************************************************}
{ TListBox.GetFocusedItem }
{****************************************************************************}
function TListBox.GetFocusedItem : Pointer;
begin
if (List = nil) or (List^.Count = 0) then
GetFocusedItem := nil
else GetFocusedItem := List^.At(Focused);
end;
{****************************************************************************}
{ TListBox.Insert }
{****************************************************************************}
procedure TListBox.Insert (Item : Pointer);
begin
if (List <> nil) then
begin
List^.Insert(Item);
SetRange(List^.Count);
end;
end;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TStaticText OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TStaticText--------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TStaticText.Init (Var Bounds: TRect; Const AText: String);
BEGIN
Inherited Init(Bounds); { Call ancestor }
Text := NewStr(AText); { Create string ptr }
END;
{--TStaticText--------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TStaticText.Load (Var S: TStream);
BEGIN
Inherited Load(S); { Call ancestor }
Text := S.ReadStr; { Read text string }
END;
{--TStaticText--------------------------------------------------------------}
{ Done -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
DESTRUCTOR TStaticText.Done;
BEGIN
If (Text <> Nil) Then DisposeStr(Text); { Dispose string }
Inherited Done; { Call ancestor }
END;
{--TStaticText--------------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TStaticText.GetPalette: PPalette;
CONST P: String[Length(CStaticText)] = CStaticText; { Always normal string }
BEGIN
GetPalette := @P; { Return palette }
END;
{--TStaticText--------------------------------------------------------------}
{ DrawBackGround -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TStaticText.DrawBackGround;
VAR Just: Byte; I, J, P, Y, L: Sw_Integer; S, T: String;
BEGIN
Inherited DrawBackGround; { Call ancestor }
GetText(S); { Fetch text to write }
P := 1; { X start position }
Y := 0; { Y start position }
L := Length(S); { Length of text }
While (Y < Size.Y) AND (P <= L) Do Begin
Just := 0; { Default left justify }
If (S[P] = #2) Then Begin { Right justify char }
Just := 2; { Set right justify }
Inc(P); { Next character }
End;
If (S[P] = #3) Then Begin { Centre justify char }
Just := 1; { Set centre justify }
Inc(P); { Next character }
End;
I := P; { Start position }
While (P <= L) AND (P-I <= Size.X) AND (S[P] <> #13) Do
Inc(P); { Scan for end }
T := Copy(S, I, P-I); { String to write }
Case Just Of
0: J := 0; { Left justify }
1: J := (RawSize.X - TextWidth(T)) DIV 2; { Centre justify }
2: J := RawSize.X - TextWidth(T); { Right justify }
End;
While (J < 0) Do Begin { Text to long }
J := J + TextWidth(T[1]); { Add width to J }
Delete(T, 1, 1); { Delete the char }
End;
WriteStr(-J, -(Y*FontHeight), T, 1); { Write the text }
While (P <= L) AND (P-I <= Size.X) AND ((S[P] = #13) OR (S[P] = #10))
Do Inc(P); { Remove CR/LF }
Inc(Y); { Next line }
End;
END;
{--TStaticText--------------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TStaticText.Store (Var S: TStream);
BEGIN
TView.Store(S); { Call TView store }
S.WriteStr(Text); { Write text string }
END;
{--TStaticText--------------------------------------------------------------}
{ GetText -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TStaticText.GetText (Var S: String);
BEGIN
If (Text <> Nil) Then S := Text^ { Copy text string }
Else S := ''; { Return empty string }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TParamText OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TParamText---------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TParamText.Init (Var Bounds: TRect; Const AText: String;
AParamCount: Sw_Integer);
BEGIN
Inherited Init(Bounds, AText); { Call ancestor }
ParamCount := AParamCount; { Hold param count }
END;
{--TParamText---------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TParamText.Load (Var S: TStream);
VAR w: Word;
BEGIN
Inherited Load(S); { Call ancestor }
S.Read(w, SizeOf(w)); ParamCount:=w; { Read parameter count }
END;
{--TParamText---------------------------------------------------------------}
{ DataSize -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
FUNCTION TParamText.DataSize: Sw_Word;
BEGIN
DataSize := ParamCount * SizeOf(Pointer); { Return data size }
END;
{--TParamText---------------------------------------------------------------}
{ GetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TParamText.GetData (Var Rec);
BEGIN
Pointer(Rec) := @ParamList; { Return parm ptr }
END;
{--TParamText---------------------------------------------------------------}
{ SetData -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 06Jun98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TParamText.SetData (Var Rec);
BEGIN
ParamList := @Rec; { Fetch parameter list }
DrawView; { Redraw all the view }
END;
{--TParamText---------------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TParamText.Store (Var S: TStream);
VAR w: Word;
BEGIN
TStaticText.Store(S); { Statictext store }
w:=ParamCount;S.Write(w, SizeOf(w)); { Store param count }
END;
{--TParamText---------------------------------------------------------------}
{ GetText -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TParamText.GetText (Var S: String);
BEGIN
If (Text = Nil) Then S := '' Else { Return empty string }
FormatStr(S, Text^, ParamList^); { Return text string }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ TLabel OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--TLabel-------------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TLabel.Init (Var Bounds: TRect; CONST AText: String; ALink: PView);
BEGIN
Inherited Init(Bounds, AText); { Call ancestor }
Link := ALink; { Hold link }
Options := Options OR (ofPreProcess+ofPostProcess);{ Set pre/post process }
EventMask := EventMask OR evBroadcast; { Sees broadcast events }
END;
{--TLabel-------------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR TLabel.Load (Var S: TStream);
BEGIN
Inherited Load(S); { Call ancestor }
GetPeerViewPtr(S, Link); { Load link view }
END;
{--TLabel-------------------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION TLabel.GetPalette: PPalette;
CONST P: String[Length(CLabel)] = CLabel; { Always normal string }
BEGIN
GetPalette := @P; { Return palette }
END;
{--TLabel-------------------------------------------------------------------}
{ DrawBackGround -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TLabel.DrawBackGround;
VAR SCOff: Byte; Color: Word; B: TDrawBuffer;
BEGIN
TView.DrawBackGround; { Explict call to TView }
If Light Then Begin { Light colour select }
Color := GetColor($0402); { Choose light colour }
SCOff := 0; { Zero offset }
End Else Begin
Color := GetColor($0301); { Darker colour }
SCOff := 4; { Set offset }
End;
MoveChar(B[0], ' ', Byte(Color), Size.X); { Clear the buffer }
If (Text <> Nil) Then MoveCStr(B[1], Text^, Color);{ Transfer label text }
If ShowMarkers Then WordRec(B[0]).Lo := Byte(
SpecialChars[SCOff]); { Show marker if req }
WriteLine(0, 0, Size.X, 1, B); { Write the text }
END;
{--TLabel-------------------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TLabel.Store (Var S: TStream);
BEGIN
TStaticText.Store(S); { TStaticText.Store }
PutPeerViewPtr(S, Link); { Store link view }
END;
{--TLabel-------------------------------------------------------------------}
{ HandleEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE TLabel.HandleEvent (Var Event: TEvent);
VAR C: Char;
PROCEDURE FocusLink;
BEGIN
If (Link <> Nil) AND (Link^.Options AND
ofSelectable <> 0) Then Link^.Focus; { Focus link view }
ClearEvent(Event); { Clear the event }
END;
BEGIN
Inherited HandleEvent(Event); { Call ancestor }
Case Event.What Of
evNothing: Exit; { Speed up exit }
evMouseDown: FocusLink; { Focus link view }
evKeyDown: Begin
C := HotKey(Text^); { Check for hotkey }
If (GetAltCode(C) = Event.KeyCode) OR { Alt plus char }
((C <> #0) AND (Owner^.Phase = phPostProcess) { Post process phase }
AND (UpCase(Event.CharCode) = C)) Then { Upper case match }
FocusLink; { Focus link view }
End;
evBroadcast: If ((Event.Command = cmReceivedFocus)
OR (Event.Command = cmReleasedFocus)) AND { Focus state change }
(Link <> Nil) Then Begin
Light := Link^.State AND sfFocused <> 0; { Change light state }
DrawView; { Now redraw change }
End;
End;
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ THistoryViewer OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--THistoryViewer-----------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR THistoryViewer.Init (Var Bounds: TRect; AHScrollBar,
AVScrollBar: PScrollBar; AHistoryId: Word);
BEGIN
Inherited Init(Bounds, 1, AHScrollBar,
AVScrollBar); { Call ancestor }
HistoryId := AHistoryId; { Hold history id }
SetRange(HistoryCount(AHistoryId)); { Set history range }
If (Range > 1) Then FocusItem(1); { Set to item 1 }
If (HScrollBar <> Nil) Then
HScrollBar^.SetRange(1, HistoryWidth-Size.X + 3);{ Set scrollbar range }
END;
{--THistoryViewer-----------------------------------------------------------}
{ HistoryWidth -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION THistoryViewer.HistoryWidth: Sw_Integer;
VAR Width, T, Count, I: Sw_Integer;
BEGIN
Width := 0; { Zero width variable }
Count := HistoryCount(HistoryId); { Hold count value }
For I := 0 To Count-1 Do Begin { For each item }
T := Length(HistoryStr(HistoryId, I)); { Get width of item }
If (T > Width) Then Width := T; { Set width to max }
End;
HistoryWidth := Width; { Return max item width }
END;
{--THistoryViewer-----------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION THistoryViewer.GetPalette: PPalette;
CONST P: String[Length(CHistoryViewer)] = CHistoryViewer;{ Always normal string }
BEGIN
GetPalette := @P; { Return palette }
END;
{--THistoryViewer-----------------------------------------------------------}
{ GetText -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION THistoryViewer.GetText (Item: Sw_Integer; MaxLen: Sw_Integer): String;
BEGIN
GetText := HistoryStr(HistoryId, Item); { Return history string }
END;
{--THistoryViewer-----------------------------------------------------------}
{ HandleEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE THistoryViewer.HandleEvent (Var Event: TEvent);
BEGIN
If ((Event.What = evMouseDown) AND (Event.Double)) { Double click mouse }
OR ((Event.What = evKeyDown) AND
(Event.KeyCode = kbEnter)) Then Begin { Enter key press }
EndModal(cmOk); { End with cmOk }
ClearEvent(Event); { Event was handled }
End Else If ((Event.What = evKeyDown) AND
(Event.KeyCode = kbEsc)) OR { Esc key press }
((Event.What = evCommand) AND
(Event.Command = cmCancel)) Then Begin { Cancel command }
EndModal(cmCancel); { End with cmCancel }
ClearEvent(Event); { Event was handled }
End Else Inherited HandleEvent(Event); { Call ancestor }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ THistoryWindow OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--THistoryWindow-----------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR THistoryWindow.Init (Var Bounds: TRect; HistoryId: Word);
BEGIN
Inherited Init(Bounds, '', wnNoNumber); { Call ancestor }
Flags := wfClose; { Close flag only }
InitViewer(HistoryId); { Create list view }
END;
{--THistoryWindow-----------------------------------------------------------}
{ GetSelection -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION THistoryWindow.GetSelection: String;
BEGIN
If (Viewer = Nil) Then GetSelection := '' Else { Return empty string }
GetSelection := Viewer^.GetText(Viewer^.Focused,
255); { Get focused string }
END;
{--THistoryWindow-----------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION THistoryWindow.GetPalette: PPalette;
CONST P: String[Length(CHistoryWindow)] = CHistoryWindow;{ Always normal string }
BEGIN
GetPalette := @P; { Return the palette }
END;
{--THistoryWindow-----------------------------------------------------------}
{ InitViewer -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE THistoryWindow.InitViewer(HistoryId: Word);
VAR R: TRect;
BEGIN
GetExtent(R); { Get extents }
R.Grow(-1,-1); { Grow inside }
Viewer := New(PHistoryViewer, Init(R,
StandardScrollBar(sbHorizontal + sbHandleKeyboard),
StandardScrollBar(sbVertical + sbHandleKeyboard),
HistoryId)); { Create the viewer }
If (Viewer <> Nil) Then Insert(Viewer); { Insert viewer }
END;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ THistory OBJECT METHODS }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{--THistory-----------------------------------------------------------------}
{ Init -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR THistory.Init (Var Bounds: TRect; ALink: PInputLine;
AHistoryId: Word);
BEGIN
Inherited Init(Bounds); { Call ancestor }
Options := Options OR ofPostProcess; { Set post process }
EventMask := EventMask OR evBroadcast; { See broadcast events }
Link := ALink; { Hold link view }
HistoryId := AHistoryId; { Hold history id }
END;
{--THistory-----------------------------------------------------------------}
{ Load -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
CONSTRUCTOR THistory.Load (Var S: TStream);
BEGIN
Inherited Load(S); { Call ancestor }
GetPeerViewPtr(S, Link); { Load link view }
S.Read(HistoryId, SizeOf(HistoryId)); { Read history id }
END;
{--THistory-----------------------------------------------------------------}
{ GetPalette -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION THistory.GetPalette: PPalette;
CONST P: String[Length(CHistory)] = CHistory; { Always normal string }
BEGIN
GetPalette := @P; { Return the palette }
END;
{--THistory-----------------------------------------------------------------}
{ InitHistoryWindow -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
FUNCTION THistory.InitHistoryWindow (Var Bounds: TRect): PHistoryWindow;
VAR P: PHistoryWindow;
BEGIN
P := New(PHistoryWindow, Init(Bounds, HistoryId)); { Create history window }
If (Link <> Nil) Then
P^.HelpCtx := Link^.HelpCtx; { Set help context }
InitHistoryWindow := P; { Return history window }
END;
PROCEDURE THistory.Draw;
VAR B: TDrawBuffer;
BEGIN
MoveCStr(B, #222'~'#25'~'#221, GetColor($0102)); { Set buffer data }
WriteLine(0, 0, Size.X, Size.Y, B); { Write buffer }
END;
{--THistory-----------------------------------------------------------------}
{ RecordHistory -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE THistory.RecordHistory (CONST S: String);
BEGIN
HistoryAdd(HistoryId, S); { Add to history }
END;
{--THistory-----------------------------------------------------------------}
{ Store -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE THistory.Store (Var S: TStream);
BEGIN
TView.Store(S); { TView.Store called }
PutPeerViewPtr(S, Link); { Store link view }
S.Write(HistoryId, SizeOf(HistoryId)); { Store history id }
END;
{--THistory-----------------------------------------------------------------}
{ HandleEvent -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 26Oct99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE THistory.HandleEvent (Var Event: TEvent);
VAR C: Word; Rslt: String; R, P: TRect; HistoryWindow: PHistoryWindow;
BEGIN
Inherited HandleEvent(Event); { Call ancestor }
If (Link = Nil) Then Exit; { No link view exits }
If (Event.What = evMouseDown) OR { Mouse down event }
((Event.What = evKeyDown) AND
(CtrlToArrow(Event.KeyCode) = kbDown) AND { Down arrow key }
(Link^.State AND sfFocused <> 0)) Then Begin { Link view selected }
If NOT Link^.Focus Then Begin
ClearEvent(Event); { Event was handled }
Exit; { Now exit }
End;
RecordHistory(Link^.Data^); { Record current data }
Link^.GetBounds(R); { Get view bounds }
Dec(R.A.X); { One char in from us }
Inc(R.B.X); { One char short of us }
Inc(R.B.Y, 7); { Seven lines down }
Dec(R.A.Y,1); { One line below us }
Owner^.GetExtent(P); { Get owner extents }
R.Intersect(P); { Intersect views }
Dec(R.B.Y,1); { Shorten length by one }
HistoryWindow := InitHistoryWindow(R); { Create history window }
If (HistoryWindow <> Nil) Then Begin { Window crested okay }
C := Owner^.ExecView(HistoryWindow); { Execute this window }
If (C = cmOk) Then Begin { Result was okay }
Rslt := HistoryWindow^.GetSelection; { Get history selection }
If Length(Rslt) > Link^.MaxLen Then
SetLength(Rslt, Link^.MaxLen); { Hold new length }
Link^.Data^ := Rslt; { Hold new selection }
Link^.SelectAll(True); { Select all string }
Link^.DrawView; { Redraw link view }
End;
Dispose(HistoryWindow, Done); { Dispose of window }
End;
ClearEvent(Event); { Event was handled }
End Else If (Event.What = evBroadcast) Then { Broadcast event }
If ((Event.Command = cmReleasedFocus) AND
(Event.InfoPtr = Link)) OR
(Event.Command = cmRecordHistory) Then { Record command }
RecordHistory(Link^.Data^); { Record the history }
END;
{****************************************************************************}
{ TBrowseButton Object }
{****************************************************************************}
{****************************************************************************}
{ TBrowseButton.Init }
{****************************************************************************}
constructor TBrowseButton.Init(var Bounds: TRect; ATitle: TTitleStr;
ACommand: Word; AFlags: Byte; ALink: PBrowseInputLine);
begin
if not inherited Init(Bounds,ATitle,ACommand,AFlags) then
Fail;
Link := ALink;
end;
{****************************************************************************}
{ TBrowseButton.Load }
{****************************************************************************}
constructor TBrowseButton.Load(var S: TStream);
begin
if not inherited Load(S) then
Fail;
GetPeerViewPtr(S,Link);
end;
{****************************************************************************}
{ TBrowseButton.Press }
{****************************************************************************}
procedure TBrowseButton.Press;
var
E: TEvent;
begin
Message(Owner, evBroadcast, cmRecordHistory, nil);
if Flags and bfBroadcast <> 0 then
Message(Owner, evBroadcast, Command, Link) else
begin
E.What := evCommand;
E.Command := Command;
E.InfoPtr := Link;
PutEvent(E);
end;
end;
{****************************************************************************}
{ TBrowseButton.Store }
{****************************************************************************}
procedure TBrowseButton.Store(var S: TStream);
begin
inherited Store(S);
PutPeerViewPtr(S,Link);
end;
{****************************************************************************}
{ TBrowseInputLine Object }
{****************************************************************************}
{****************************************************************************}
{ TBrowseInputLine.Init }
{****************************************************************************}
constructor TBrowseInputLine.Init(var Bounds: TRect; AMaxLen: Sw_Integer; AHistory: Sw_Word);
begin
if not inherited Init(Bounds,AMaxLen) then
Fail;
History := AHistory;
end;
{****************************************************************************}
{ TBrowseInputLine.Load }
{****************************************************************************}
constructor TBrowseInputLine.Load(var S: TStream);
begin
if not inherited Load(S) then
Fail;
S.Read(History,SizeOf(History));
if (S.Status <> stOk) then
Fail;
end;
{****************************************************************************}
{ TBrowseInputLine.DataSize }
{****************************************************************************}
function TBrowseInputLine.DataSize: Sw_Word;
begin
DataSize := SizeOf(TBrowseInputLineRec);
end;
{****************************************************************************}
{ TBrowseInputLine.GetData }
{****************************************************************************}
procedure TBrowseInputLine.GetData(var Rec);
var
LocalRec: TBrowseInputLineRec absolute Rec;
begin
if (Validator = nil) or
(Validator^.Transfer(Data^,@LocalRec.Text, vtGetData) = 0) then
begin
FillChar(LocalRec.Text, DataSize, #0);
Move(Data^, LocalRec.Text, Length(Data^) + 1);
end;
LocalRec.History := History;
end;
{****************************************************************************}
{ TBrowseInputLine.SetData }
{****************************************************************************}
procedure TBrowseInputLine.SetData(var Rec);
var
LocalRec: TBrowseInputLineRec absolute Rec;
begin
if (Validator = nil) or
(Validator^.Transfer(Data^, @LocalRec.Text, vtSetData) = 0) then
Move(LocalRec.Text, Data^[0], MaxLen + 1);
History := LocalRec.History;
SelectAll(True);
end;
{****************************************************************************}
{ TBrowseInputLine.Store }
{****************************************************************************}
procedure TBrowseInputLine.Store(var S: TStream);
begin
inherited Store(S);
S.Write(History,SizeOf(History));
end;
{****************************************************************************}
{ TCommandCheckBoxes Object }
{****************************************************************************}
{****************************************************************************}
{ TCommandCheckBoxes.Init }
{****************************************************************************}
constructor TCommandCheckBoxes.Init (var Bounds : TRect;
ACommandStrings : PCommandSItem);
var StartSItem, S : PSItem;
CItems : PCommandSItem;
i : Sw_Integer;
begin
if ACommandStrings = nil then
Fail;
{ set up string list }
StartSItem := NewSItem(ACommandStrings^.Value,nil);
S := StartSItem;
CItems := ACommandStrings^.Next;
while (CItems <> nil) do begin
S^.Next := NewSItem(CItems^.Value,nil);
S := S^.Next;
CItems := CItems^.Next;
end;
{ construct check boxes }
if not TCheckBoxes.Init(Bounds,StartSItem) then begin
while (StartSItem <> nil) do begin
S := StartSItem;
StartSItem := StartSItem^.Next;
if (S^.Value <> nil) then
DisposeStr(S^.Value);
Dispose(S);
end;
Fail;
end;
{ set up CommandList and dispose of memory used by ACommandList }
i := 0;
while (ACommandStrings <> nil) do begin
CommandList[i] := ACommandStrings^.Command;
CItems := ACommandStrings;
ACommandStrings := ACommandStrings^.Next;
Dispose(CItems);
Inc(i);
end;
end;
{****************************************************************************}
{ TCommandCheckBoxes.Load }
{****************************************************************************}
constructor TCommandCheckBoxes.Load (var S : TStream);
begin
if not TCheckBoxes.Load(S) then
Fail;
S.Read(CommandList,SizeOf(CommandList));
if (S.Status <> stOk) then begin
TCheckBoxes.Done;
Fail;
end;
end;
{****************************************************************************}
{ TCommandCheckBoxes.Press }
{****************************************************************************}
procedure TCommandCheckBoxes.Press (Item : Sw_Integer);
var Temp : Sw_Integer;
begin
Temp := Value;
TCheckBoxes.Press(Item);
if (Value <> Temp) then { value changed - notify peers }
Message(Owner,evCommand,CommandList[Item],@Value);
end;
{****************************************************************************}
{ TCommandCheckBoxes.Store }
{****************************************************************************}
procedure TCommandCheckBoxes.Store (var S : TStream);
begin
TCheckBoxes.Store(S);
S.Write(CommandList,SizeOf(CommandList));
end;
{****************************************************************************}
{ TCommandIcon Object }
{****************************************************************************}
{****************************************************************************}
{ TCommandIcon.Init }
{****************************************************************************}
constructor TCommandIcon.Init (var Bounds : TRect; AText : String;
ACommand : Word);
begin
if not TStaticText.Init(Bounds,AText) then
Fail;
Options := Options or ofPostProcess;
Command := ACommand;
end;
{****************************************************************************}
{ TCommandIcon.HandleEvent }
{****************************************************************************}
procedure TCommandIcon.HandleEvent (var Event : TEvent);
begin
if ((Event.What = evMouseDown) and MouseInView(MouseWhere)) then begin
ClearEvent(Event);
Message(Owner,evCommand,Command,nil);
end;
TStaticText.HandleEvent(Event);
end;
{****************************************************************************}
{ TCommandInputLine Object }
{****************************************************************************}
{****************************************************************************}
{ TCommandInputLine.Changed }
{****************************************************************************}
{procedure TCommandInputLine.Changed;
begin
Message(Owner,evBroadcast,cmInputLineChanged,@Self);
end; }
{****************************************************************************}
{ TCommandInputLine.HandleEvent }
{****************************************************************************}
{procedure TCommandInputLine.HandleEvent (var Event : TEvent);
var E : TEvent;
begin
E := Event;
TBSDInputLine.HandleEvent(Event);
if ((E.What and evKeyBoard = evKeyBoard) and (Event.KeyCode = kbEnter))
then Changed;
end; }
{****************************************************************************}
{ TCommandRadioButtons Object }
{****************************************************************************}
{****************************************************************************}
{ TCommandRadioButtons.Init }
{****************************************************************************}
constructor TCommandRadioButtons.Init (var Bounds : TRect;
ACommandStrings : PCommandSItem);
var
StartSItem, S : PSItem;
CItems : PCommandSItem;
i : Sw_Integer;
begin
if ACommandStrings = nil
then Fail;
{ set up string list }
StartSItem := NewSItem(ACommandStrings^.Value,nil);
S := StartSItem;
CItems := ACommandStrings^.Next;
while (CItems <> nil) do begin
S^.Next := NewSItem(CItems^.Value,nil);
S := S^.Next;
CItems := CItems^.Next;
end;
{ construct check boxes }
if not TRadioButtons.Init(Bounds,StartSItem) then begin
while (StartSItem <> nil) do begin
S := StartSItem;
StartSItem := StartSItem^.Next;
if (S^.Value <> nil) then
DisposeStr(S^.Value);
Dispose(S);
end;
Fail;
end;
{ set up command list }
i := 0;
while (ACommandStrings <> nil) do begin
CommandList[i] := ACommandStrings^.Command;
CItems := ACommandStrings;
ACommandStrings := ACommandStrings^.Next;
Dispose(CItems);
Inc(i);
end;
end;
{****************************************************************************}
{ TCommandRadioButtons.Load }
{****************************************************************************}
constructor TCommandRadioButtons.Load (var S : TStream);
begin
if not TRadioButtons.Load(S) then
Fail;
S.Read(CommandList,SizeOf(CommandList));
if (S.Status <> stOk) then begin
TRadioButtons.Done;
Fail;
end;
end;
{****************************************************************************}
{ TCommandRadioButtons.MoveTo }
{****************************************************************************}
procedure TCommandRadioButtons.MovedTo (Item : Sw_Integer);
var Temp : Sw_Integer;
begin
Temp := Value;
TRadioButtons.MovedTo(Item);
if (Value <> Temp) then { value changed - notify peers }
Message(Owner,evCommand,CommandList[Item],@Value);
end;
{****************************************************************************}
{ TCommandRadioButtons.Press }
{****************************************************************************}
procedure TCommandRadioButtons.Press (Item : Sw_Integer);
var Temp : Sw_Integer;
begin
Temp := Value;
TRadioButtons.Press(Item);
if (Value <> Temp) then { value changed - notify peers }
Message(Owner,evCommand,CommandList[Item],@Value);
end;
{****************************************************************************}
{ TCommandRadioButtons.Store }
{****************************************************************************}
procedure TCommandRadioButtons.Store (var S : TStream);
begin
TRadioButtons.Store(S);
S.Write(CommandList,SizeOf(CommandList));
end;
{****************************************************************************}
{ TEditListBox Object }
{****************************************************************************}
{****************************************************************************}
{ TEditListBox.Init }
{****************************************************************************}
constructor TEditListBox.Init (Bounds : TRect; ANumCols: Word;
AVScrollBar : PScrollBar);
begin
if not inherited Init(Bounds,ANumCols,AVScrollBar)
then Fail;
CurrentField := 1;
end;
{****************************************************************************}
{ TEditListBox.Load }
{****************************************************************************}
constructor TEditListBox.Load (var S : TStream);
begin
if not inherited Load(S)
then Fail;
CurrentField := 1;
end;
{****************************************************************************}
{ TEditListBox.EditField }
{****************************************************************************}
procedure TEditListBox.EditField (var Event : TEvent);
var R : TRect;
InputLine : PModalInputLine;
Data : String;
begin
R.Assign(StartColumn,(Origin.Y + Focused - TopItem),
(StartColumn + FieldWidth + 2),(Origin.Y + Focused - TopItem + 1));
Owner^.MakeGlobal(R.A,R.A);
Owner^.MakeGlobal(R.B,R.B);
InputLine := New(PModalInputLine,Init(R,FieldWidth));
InputLine^.SetValidator(FieldValidator);
if InputLine <> nil
then begin
{ Use TInputLine^.SetData so that data validation occurs }
{ because TInputLine.Data is allocated memory large enough }
{ to hold a string of MaxLen. It is also faster. }
GetField(InputLine);
if (Application^.ExecView(InputLine) = cmOk)
then SetField(InputLine);
Dispose(InputLine,done);
end;
end;
{****************************************************************************}
{ TEditListBox.FieldValidator }
{****************************************************************************}
function TEditListBox.FieldValidator : PValidator;
{ In a multiple field listbox FieldWidth should return the width }
{ appropriate for Field. The default is an inputline for editing }
{ a string of length large enough to fill the listbox field. }
begin
FieldValidator := nil;
end;
{****************************************************************************}
{ TEditListBox.FieldWidth }
{****************************************************************************}
function TEditListBox.FieldWidth : Integer;
{ In a multiple field listbox FieldWidth should return the width }
{ appropriate for CurrentField. }
begin
FieldWidth := Size.X - 2;
end;
{****************************************************************************}
{ TEditListBox.GetField }
{****************************************************************************}
procedure TEditListBox.GetField (InputLine : PInputLine);
{ Places a string appropriate to Field and Focused into InputLine that }
{ will be edited. Override this method for complex data types. }
begin
InputLine^.SetData(PString(List^.At(Focused))^);
end;
{****************************************************************************}
{ TEditListBox.GetPalette }
{****************************************************************************}
function TEditListBox.GetPalette : PPalette;
begin
GetPalette := inherited GetPalette;
end;
{****************************************************************************}
{ TEditListBox.HandleEvent }
{****************************************************************************}
procedure TEditListBox.HandleEvent (var Event : TEvent);
begin
if (Event.What = evKeyboard) and (Event.KeyCode = kbAltE)
then begin { edit field }
EditField(Event);
DrawView;
ClearEvent(Event);
end;
inherited HandleEvent(Event);
end;
{****************************************************************************}
{ TEditListBox.SetField }
{****************************************************************************}
procedure TEditListBox.SetField (InputLine : PInputLine);
{ Override this method for field types other than PStrings. }
var Item : PString;
begin
Item := NewStr(InputLine^.Data^);
if Item <> nil
then begin
List^.AtFree(Focused);
List^.Insert(Item);
SetFocusedItem(Item);
end;
end;
{****************************************************************************}
{ TEditListBox.StartColumn }
{****************************************************************************}
function TEditListBox.StartColumn : Integer;
begin
StartColumn := Origin.X;
end;
{****************************************************************************}
{ TListDlg Object }
{****************************************************************************}
{****************************************************************************}
{ TListDlg.Init }
{****************************************************************************}
constructor TListDlg.Init (ATitle : TTitleStr; Items:
String; AButtons: Word; AListBox: PListBox; AEditCommand, ANewCommand :
Word);
var
Bounds: TRect;
b: Byte;
ButtonCount: Byte;
i, j, Gap, Line: Integer;
Scrollbar: PScrollbar;
HasFrame: Boolean;
HasButtons: Boolean;
HasScrollBar: Boolean;
HasItems: Boolean;
begin
if AListBox = nil then
Fail
else
ListBox := AListBox;
HasFrame := ((AButtons and ldNoFrame) = 0);
HasButtons := ((AButtons and ldAllButtons) <> 0);
HasScrollBar := ((AButtons and ldNoScrollBar) = 0);
HasItems := (Items <> '');
ButtonCount := 2;
for b := 0 to 3 do
if (AButtons and ($0001 shl 1)) <> 0 then
Inc(ButtonCount);
{ Make sure dialog is large enough for buttons }
ListBox^.GetExtent(Bounds);
Bounds.Move(ListBox^.Origin.X,ListBox^.Origin.Y);
if HasFrame then
begin
Inc(Bounds.B.X,2);
Inc(Bounds.B.Y,2);
end;
if HasButtons then
begin
Inc(Bounds.B.X,14);
if Bounds.B.Y < (ButtonCount * 2) + 4 then
Bounds.B.Y := (ButtonCount * 2) + 5;
end;
if HasItems then
Inc(Bounds.B.Y,1);
if not TDialog.Init(Bounds,ATitle) then
Fail;
NewCommand := ANewCommand;
EditCommand := AEditCommand;
Options := Options or ofNewEditDelete;
if (not HasFrame) and (Frame <> nil) then
begin
Delete(Frame);
Dispose(Frame,Done);
Frame := nil;
Options := Options and not ofFramed;
end;
HelpCtx := hcListDlg;
{ position and insert ListBox }
ListBox := AListBox;
Insert(ListBox);
if HasItems then
if HasFrame then
ListBox^.MoveTo(2,2)
else ListBox^.MoveTo(0,2)
else
if HasFrame then
ListBox^.MoveTo(1,1)
else ListBox^.MoveTo(0,0);
if HasButtons then
if ListBox^.Size.Y < (ButtonCount * 2) then
ListBox^.GrowTo(ListBox^.Size.X,ButtonCount * 2);
{ do Items }
if HasItems then
begin
Bounds.Assign(1,1,CStrLen(Items)+2,2);
Insert(New(PLabel,Init(Bounds,Items,ListBox)));
end;
{ do scrollbar }
if HasScrollBar then
begin
Bounds.Assign(ListBox^.Size.X+ListBox^.Origin.X,ListBox^.Origin.Y,
ListBox^.Size.X + ListBox^.Origin.X + 1,
ListBox^.Size.Y + ListBox^.Origin.Y { origin });
ScrollBar := New(PScrollBar,Init(Bounds));
Bounds.Assign(Origin.X,Origin.Y,Origin.X + Size.X + 1, Origin.Y + Size.Y);
ChangeBounds(Bounds);
Insert(Scrollbar);
end;
if HasButtons then
begin { do buttons }
j := $0001;
Gap := 0;
for i := 0 to 3 do
if ((j shl i) and AButtons) <> 0 then
Inc(Gap);
Gap := ((Size.Y - 2) div (Gap + 2));
if Gap < 2 then
Gap := 2;
{ Insert Buttons }
Line := 2;
if (AButtons and ldNew) = ldNew then
begin
Insert(NewButton(Size.X - 12,Line,10,2,'~N~ew',cmNew,hcInsert,bfNormal));
Inc(Line,Gap);
end;
if (AButtons and ldEdit) = ldEdit then
begin
Insert(NewButton(Size.X - 12,Line,10,2,'~E~dit',cmEdit,hcEdit,
bfNormal));
Inc(Line,Gap);
end;
if (AButtons and ldDelete) = ldDelete then
begin
Insert(NewButton(Size.X - 12,Line,10,2,'~D~elete',cmDelete,hcDelete,
bfNormal));
Inc(Line,Gap);
end;
Insert(NewButton(Size.X - 12,Line,10,2,'O~k~',cmOK,hcOk,bfDefault or
bfNormal));
Inc(Line,Gap);
Insert(NewButton(Size.X - 12,Line,10,2,'Cancel',cmCancel,hcCancel,
bfNormal));
if (AButtons and ldHelp) = ldHelp then
begin
Inc(Line,Gap);
Insert(NewButton(Size.X - 12,Line,10,2,'~H~elp',cmHelp,hcNoContext,
bfNormal));
end;
end;
if HasFrame and ((AButtons and ldAllIcons) <> 0) then
begin
Line := 2;
if (AButtons and ldNewIcon) = ldNewIcon then
begin
Bounds.Assign(Line,Size.Y-1,Line+5,Size.Y);
Insert(New(PCommandIcon,Init(Bounds,' Ins ',cmNew)));
Inc(Line,5);
if (AButtons and (ldEditIcon or ldDeleteIcon)) <> 0 then
begin
Bounds.Assign(Line,Size.Y-1,Line+1,Size.Y);
Insert(New(PStaticText,Init(Bounds,'/')));
Inc(Line,1);
end;
end;
if (AButtons and ldEditIcon) = ldEditIcon then
begin
Bounds.Assign(Line,Size.Y-1,Line+6,Size.Y);
Insert(New(PCommandIcon,Init(Bounds,' Edit ',cmEdit)));
Inc(Line,6);
if (AButtons and ldDeleteIcon) <> 0 then
begin
Bounds.Assign(Line,Size.Y-1,Line+1,Size.Y);
Insert(New(PStaticText,Init(Bounds,'/')));
Inc(Line,1);
end;
end;
if (AButtons and ldNewIcon) = ldNewIcon then
begin
Bounds.Assign(Line,Size.Y-1,Line+5,Size.Y);
Insert(New(PCommandIcon,Init(Bounds,' Del ',cmDelete)));
end;
end;
{ Set focus to list boLine when dialog opens }
SelectNext(False);
end;
{****************************************************************************}
{ TListDlg.Load }
{****************************************************************************}
constructor TListDlg.Load (var S : TStream);
begin
if not TDialog.Load(S) then
Fail;
S.Read(NewCommand,SizeOf(NewCommand));
S.Read(EditCommand,SizeOf(EditCommand));
GetSubViewPtr(S,ListBox);
end;
{****************************************************************************}
{ TListDlg.HandleEvent }
{****************************************************************************}
procedure TListDlg.HandleEvent (var Event : TEvent);
const
TargetCommands: TCommandSet = [cmNew, cmEdit, cmDelete];
begin
if ((Event.What and evCommand) <> 0) and
(Event.Command in TargetCommands) then
case Event.Command of
cmDelete:
if Options and ofDelete = ofDelete then
begin
ListBox^.FreeFocusedItem;
ListBox^.DrawView;
ClearEvent(Event);
end;
cmNew:
if Options and ofNew = ofNew then
begin
Message(Application,evCommand,NewCommand,nil);
ListBox^.SetRange(ListBox^.List^.Count);
ListBox^.DrawView;
ClearEvent(Event);
end;
cmEdit:
if Options and ofEdit = ofEdit then
begin
Message(Application,evCommand,EditCommand,ListBox^.GetFocusedItem);
ListBox^.DrawView;
ClearEvent(Event);
end;
end;
if (Event.What and evBroadcast > 0) and
(Event.Command = cmListItemSelected) then
begin { use PutEvent instead of Message so that a window list box works }
Event.What := evCommand;
Event.Command := cmOk;
Event.InfoPtr := nil;
PutEvent(Event);
end;
TDialog.HandleEvent(Event);
end;
{****************************************************************************}
{ TListDlg.Store }
{****************************************************************************}
procedure TListDlg.Store (var S : TStream);
begin
TDialog.Store(S);
S.Write(NewCommand,SizeOf(NewCommand));
S.Write(EditCommand,SizeOf(EditCommand));
PutSubViewPtr(S,ListBox);
end;
{****************************************************************************}
{ TModalInputLine Object }
{****************************************************************************}
{****************************************************************************}
{ TModalInputLine.Execute }
{****************************************************************************}
function TModalInputLine.Execute : Word;
var Event : TEvent;
begin
repeat
EndState := 0;
repeat
GetEvent(Event);
HandleEvent(Event);
if Event.What <> evNothing
then Owner^.EventError(Event); { may change this to ClearEvent }
until (EndState <> 0);
until Valid(EndState);
Execute := EndState;
end;
{****************************************************************************}
{ TModalInputLine.HandleEvent }
{****************************************************************************}
procedure TModalInputLine.HandleEvent (var Event : TEvent);
begin
case Event.What of
evKeyboard : case Event.KeyCode of
kbUp, kbDown : EndModal(cmCancel);
kbEnter : EndModal(cmOk);
else inherited HandleEvent(Event);
end;
evMouse : if MouseInView(Event.Where)
then inherited HandleEvent(Event)
else EndModal(cmCancel);
else inherited HandleEvent(Event);
end;
end;
{****************************************************************************}
{ TModalInputLine.SetState }
{****************************************************************************}
procedure TModalInputLine.SetState (AState : Word; Enable : Boolean);
var Pos : Integer;
begin
if (AState = sfSelected)
then begin
Pos := CurPos;
inherited SetState(AState,Enable);
CurPos := Pos;
SelStart := CurPos;
SelEnd := CurPos;
BlockCursor;
DrawView;
end
else inherited SetState(AState,Enable);
end;
{***************************************************************************}
{ INTERFACE ROUTINES }
{***************************************************************************}
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ ITEM STRING ROUTINES }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{---------------------------------------------------------------------------}
{ NewSItem -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 28Apr98 LdB }
{---------------------------------------------------------------------------}
FUNCTION NewSItem (Const Str: String; ANext: PSItem): PSItem;
VAR Item: PSItem;
BEGIN
New(Item); { Allocate item }
Item^.Value := NewStr(Str); { Hold item string }
Item^.Next := ANext; { Chain the ptr }
NewSItem := Item; { Return item }
END;
{****************************************************************************}
{ NewCommandSItem }
{****************************************************************************}
function NewCommandSItem (Str : String; ACommand : Word;
ANext : PCommandSItem) : PCommandSItem;
var Temp : PCommandSItem;
begin
New(Temp);
if (Temp <> nil) then
begin
Temp^.Value := Str;
Temp^.Command := ACommand;
Temp^.Next := ANext;
end;
NewCommandSItem := Temp;
end;
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{ DIALOG OBJECT REGISTRATION ROUTINES }
{+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++}
{---------------------------------------------------------------------------}
{ RegisterDialogs -> Platforms DOS/DPMI/WIN/NT/OS2 - Updated 30Sep99 LdB }
{---------------------------------------------------------------------------}
PROCEDURE RegisterDialogs;
BEGIN
RegisterType(RDialog); { Register dialog }
RegisterType(RInputLine); { Register inputline }
RegisterType(RButton); { Register button }
RegisterType(RCluster); { Register cluster }
RegisterType(RRadioButtons); { Register radiobutton }
RegisterType(RCheckBoxes); { Register check boxes }
RegisterType(RMultiCheckBoxes); { Register multi boxes }
RegisterType(RListBox); { Register list box }
RegisterType(RStaticText); { Register static text }
RegisterType(RLabel); { Register label }
RegisterType(RHistory); { Register history }
RegisterType(RParamText); { Register parm text }
RegisterType(RCommandCheckBoxes);
RegisterType(RCommandIcon);
RegisterType(RCommandRadioButtons);
RegisterType(REditListBox);
RegisterType(RModalInputLine);
RegisterType(RListDlg);
END;
END.
{
$Log$
Revision 1.22 2002-10-17 13:27:53 pierre
* fix TCluster.Get/SetData on big endian machines
Revision 1.21 2002/10/17 11:24:16 pierre
* Clean up the Load/Store routines so they are endian independent
Revision 1.20 2002/09/22 19:42:23 hajny
+ FPC/2 support added
Revision 1.19 2002/09/09 08:14:47 pierre
* remove virtual modifer from store methods
Revision 1.18 2002/09/07 15:06:36 peter
* old logs removed and tabs fixed
Revision 1.17 2002/05/31 12:35:21 pierre
* use graph mode to display button title
Revision 1.16 2002/05/24 21:00:10 pierre
* correct cursor position for TInputLine
Revision 1.15 2002/05/23 12:16:11 pierre
* fix textmode button to be displayed like in TV
Revision 1.14 2002/05/23 09:06:53 pierre
* use normal cursor for textmode TInputLine
Revision 1.13 2002/05/16 20:36:24 pierre
* break lines of static text if too long
}
{******************[ REVISION HISTORY ]********************}
{ Version Date Fix }
{ ------- --------- --------------------------------- }
{ 1.00 11 Nov 96 First DOS/DPMI platform release. }
{ 1.10 13 Jul 97 Windows platform code added. }
{ 1.20 29 Aug 97 Platform.inc sort added. }
{ 1.30 13 Oct 97 Delphi 2 32 bit code added. }
{ 1.40 05 May 98 Virtual pascal 2.0 code added. }
{ 1.50 27 Oct 99 All objects completed and checked }
{ 1.51 03 Nov 99 FPC windows support added }
{ 1.60 26 Nov 99 Graphics stuff moved to GFVGraph }
{**********************************************************}
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