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lazarus/lcl/extctrls.pp
lazarus c9e180acac TPanel implemented. 
Basic graphic primitives split into GraphType package, so that we can
reference it from interface (GTK, Win32) units.
New Frame3d canvas method that uses native (themed) drawing (GTK only).
New overloaded Canvas.TextRect method.
LCLLinux and Graphics was split, so a bunch of files had to be modified.

git-svn-id: trunk@653 -
2002-02-03 00:24:02 +00:00

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{ $Id$ }
{
/***************************************************************************
ExtCtrls.pp
-------------------
Component Library Extended Controls
Initial Revision : Sat Jul 26 12:04:35 PDT 1999
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
}
{
@abstract(Just a try to provide the same objects as the Delphi extctrls unit)
@author(TCustomNotebook, TNotebook - Curtis White <cwhite@aracnet.com>)
@author(TTimer - Stefan Hille (stoppok@osibisa.ms.sub.org))
@created(26 Jul 1999)
@lastmod(28 Jul 1999)
Extctrls contains only few class defintions at the moment and is very
incomplete.
}
unit ExtCtrls;
{$mode objfpc}
{$H+}
interface
{$ifdef Trace}
{$ASSERTIONS ON}
{$endif}
uses
SysUtils, Classes, Controls, stdCtrls, vclGlobals, lMessages, GraphType, Graphics, LCLLinux;
type
{ workaround problem with fcl }
TAbstractReader = TReader;
{ TTabPosition - Move to TTabbedNotebook when it is created }
TTabPosition = (tpTop, tpBottom, tpLeft, tpRight);
{ TPage }
{
@abstract(Pages for Notebooks and TabbedNotebooks.)
Introduced and (currently) maintained by Curtis White
}
TPage = class(TCustomControl)
private
protected
procedure AttachSignals; override;
procedure ReadState(Reader: TAbstractReader); override;
procedure Paint; override;
procedure WMPaint(var Msg: TLMPaint); message LM_PAINT;
public
procedure AddControl; override;
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
procedure AdjustClientRect(var ARect: TRect); override;
published
property Caption;
//property Height;
// property TabOrder; This property needs to be created in TWinControl
property Visible;
//property Width;
end;
TCustomNotebook = class;
{ TNBPages }
{
@abstract(Notebook page access class to provide access to notebook pages.)
Introduced and (currently) maintained by Curtis White
}
TNBPages = class(TStrings)
private
fPageList: TList;
fNotebook: TCustomNotebook;
protected
function Get(Index: Integer): String; override;
function GetCount: Integer; override;
function GetObject(Index: Integer): TObject; override;
procedure Put(Index: Integer; const S: String); override;
public
constructor Create(thePageList: TList; theNotebook: TCustomNotebook);
procedure Clear; override;
procedure Delete(Index: Integer); override;
procedure Insert(Index: Integer; const S: String); override;
procedure InsertPage(Index:integer; APage: TPage);
procedure Move(CurIndex, NewIndex: Integer); override;
end;
{ TCustomNotebook }
{
@abstract(Base class for TNotebook and TTabbedNotebook.)
Introduced and (currently) maintained by Curtis White
}
TCustomNotebook = class(TCustomControl)
private
fAccess: TStrings; // TNBPages
fPageIndex: Integer;
fPageList: TList; // List of TPage
//fMultiLine: boolean;
fOnPageChanged: TNotifyEvent;
fShowTabs: Boolean;
fTabPosition: TTabPosition;
Procedure CNNotify(var Message : TLMNotify); message CN_NOTIFY;
function GetActivePage: String;
function GetPage(aIndex: Integer): TPage;
function GetPageIndex: Integer;
//function InternalSetMultiLine(Value: boolean): boolean;
procedure SetActivePage(const Value: String);
//procedure SetMultiLine(Value: boolean);
procedure SetPageIndex(Value: Integer);
procedure SetPages(Value: TStrings);
procedure SetShowTabs(Value: Boolean);
procedure SetTabPosition(tabPos: TTabPosition);
protected
procedure CreateParams(var Params: TCreateParams);override;
procedure CreateWnd; override;
procedure Change; virtual;
function GetChildOwner: TComponent; override;
procedure GetChildren(Proc: TGetChildProc; Root: TComponent); override;
procedure ReadState(Reader: TAbstractReader); override;
procedure ShowControl(AControl: TControl); override;
property ActivePage: String read GetActivePage write SetActivePage;
//property MultiLine: boolean read fMultiLine write SetMultiLine default false;
property Page[Index: Integer]: TPage read GetPage;
property PageIndex: Integer read GetPageIndex write SetPageIndex default 0;
property PageList: TList read fPageList;
property Pages: TStrings read fAccess write SetPages;
property OnPageChanged: TNotifyEvent read fOnPageChanged write fOnPageChanged;
property ShowTabs: Boolean read fShowTabs write SetShowTabs;
property TabPosition: TTabPosition read fTabPosition write SetTabPosition;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
property Name;
end;
{ TNotebook }
{
@abstract(A Delphi style TNotebook.)
Introduced and (currently) maintained by Curtis White
}
TNotebook = class(TCustomNotebook)
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
property Page;
property Pages;
published
property ActivePage;
//property MultiLine;
property OnPageChanged;
property PageIndex;
property PageList;
property ShowTabs;
end;
{
@abstract(A free running timer.)
Introduced and (currently) maintained by Stefan Hille (stoppok@osibisa.ms.sub.org)
}
TTimer = class (TComponent)
private
FInterval : Cardinal;
FTimerID : integer;
FOnTimer : TNotifyEvent;
FEnabled : Boolean;
procedure UpdateTimer;
procedure SetEnabled(Value: Boolean);
procedure SetInterval(Value: Cardinal);
procedure SetOnTimer(Value: TNotifyEvent);
procedure KillTimer;
protected
procedure Timer (var msg); message LM_Timer;
public
constructor Create(AOwner: TComponent); override;
destructor Destroy; override;
published
property Enabled: Boolean read FEnabled write SetEnabled default True;
property Interval: Cardinal read FInterval write SetInterval default 1000;
property OnTimer: TNotifyEvent read FOnTimer write SetOnTimer;
end;
TPaintBox = class(TGraphicControl)
private
FOnPaint: TNotifyEvent;
protected
procedure Paint; override;
public
constructor Create(AOwner: TComponent); override;
property Canvas;
published
property Align;
// property Anchors;
property Color;
// property Constraints;
// property DragCursor;
// property DragKind;
// property DragMode;
// property Enabled;
property Font;
property ParentColor;
property ParentFont;
// property ParentShowHint;
// property PopupMenu;
// property ShowHint;
property Visible;
property OnClick;
// property OnDblClick;
// property OnDragDrop;
// property OnDragOver;
// property OnEndDock;
// property OnEndDrag;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
property OnPaint: TNotifyEvent read FOnPaint write FOnPaint;
// property OnStartDock;
// property OnStartDrag;
end;
TImage = class(TGraphicControl)
private
FPicture: TPicture;
procedure SetPicture(const AValue: TPicture);
Procedure PictureChanged(SEnder : TObject);
protected
public
constructor Create(AOwner: TComponent); override;
published
Property Align;
property Picture : TPicture read FPicture write SetPicture;
property Visible;
property OnCLick;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
end;
TBevelStyle=(bsLowered, bsRaised);
TBevelShape=(bsBox, bsFrame, bsTopLine, bsBottomLine, bsLeftLine, bsRightLine);
TBevel=Class(TGraphicControl)
private
FStyle:TBevelStyle;
FShape:TBevelShape;
Function GetStyle:TBevelStyle;
Procedure SetStyle(aStyle:TBevelStyle);
Function GetShape:TBevelShape;
Procedure SetShape(aShape:TBevelShape);
Protected
Procedure Paint; Override;
Public
Constructor Create(AOwner:TComponent); override;
Destructor Destroy; override;
Procedure Invalidate; override;
Published
Property Height;
Property Left;
Property Name;
Property Shape:TBevelShape Read GetShape Write SetShape Default bsBox;
Property Top;
Property Style:TBevelStyle Read GetStyle Write SetStyle Default bsLowered;
Property Visible;
Property Width;
End;
{
@abstract(Base class for TRadioGroup.)
(currently) maintained by Stefan Hille (stoppok@osibisa.ms.sub.org)
}
TCustomRadioGroup = class(TCustomGroupBox)
public
constructor Create (AOwner : TComponent); override;
destructor Destroy; override;
function CanModify : boolean; virtual;
procedure CreateWnd; override;
private
FButtonList : TList; // list of TRadioButton
FCreatingWnd: boolean;
FItems : TStrings;
FItemIndex : integer;
FColumns : integer;
FReading : boolean;
FOnClick : TNotifyEvent;
procedure ItemsChanged (Sender : TObject);
procedure Clicked(Sender : TObject); virtual;
protected
procedure ReadState(Reader: TReader); override;
procedure SetItem (value : TStrings);
procedure SetColumns (value : integer);
procedure SetItemIndex (value : integer);
function GetItemIndex : integer;
property ItemIndex : integer read GetItemIndex write SetItemIndex default -1;
property Items : TStrings read FItems write SetItem;
property Columns : integer read FColumns write SetColumns default 1;
property OnClick : TNotifyEvent read FOnClick write FOnClick;
end;
{
@abstract(Group of radiobuttons.)
(currently) maintained by Stefan Hille (stoppok@osibisa.ms.sub.org)
}
TRadioGroup = class(TCustomRadioGroup)
public
constructor Create (AOwner : TComponent); override;
published
property Align;
property Caption;
property Enabled;
property ItemIndex;
property Items;
property Columns;
property Visible;
property OnClick;
end;
TPanelBevel = TBevelCut;
TBevelWidth = 1..Maxint;
TBorderWidth = 0..Maxint;
TCustomPanel = class(TCustomControl)
private
FBevelInner, FBevelOuter : TPanelBevel;
FBevelWidth : TBevelWidth;
FBorderWidth : TBorderWidth;
FBorderStyle : TControlBorderStyle;
FAlignment : TAlignment;
FCaption : TCaption;
procedure SetAlignment(const Value : TAlignment);
procedure SetBevelInner(const Value: TPanelBevel);
procedure SetBevelOuter(const Value: TPanelBevel);
procedure SetBevelWidth(const Value: TBevelWidth);
procedure SetBorderWidth(const Value: TBorderWidth);
procedure SetBorderStyle(const Value: TControlBorderStyle);
protected
procedure AdjustClientRect(var Rect: TRect); override;
function GetText: TCaption; override;
procedure SetText(const Value: TCaption); override;
procedure Paint; override;
property Alignment: TAlignment read FAlignment write SetAlignment default taCenter;
property BevelInner: TPanelBevel read FBevelInner write SetBevelInner default bvNone;
property BevelOuter: TPanelBevel read FBevelOuter write SetBevelOuter default bvRaised;
property BevelWidth: TBevelWidth read FBevelWidth write SetBevelWidth default 1;
property BorderWidth: TBorderWidth read FBorderWidth write SetBorderWidth default 0;
property BorderStyle: TControlBorderStyle read FBorderStyle write SetBorderStyle default bsNone;
property Color default clBtnFace;
property Caption read GetText write SetText;
property ParentColor default True;
public
constructor Create(AOwner: TComponent); override;
procedure Invalidate; override;
end;
TPanel = class(TCustomPanel)
published
property Align default alNone;
property Alignment;
property Anchors;
property BevelInner;
property BevelOuter;
property BevelWidth;
property BorderWidth;
property BorderStyle;
property Caption;
property Color default clBackground;
property DragMode;
property Enabled;
property Font;
property ParentColor;
property ParentFont;
property ParentShowHint;
property PopupMenu;
property ShowHint;
property TabOrder;
property TabStop default False;
property Visible;
property OnClick;
property OnDblClick;
property OnDragDrop;
property OnDragOver;
property OnEndDrag;
property OnEnter;
property OnExit;
property OnMouseDown;
property OnMouseMove;
property OnMouseUp;
property OnResize;
property OnStartDrag;
end;
const
TCN_First = 0-550;
TCN_SELCHANGE = TCN_FIRST - 1;
implementation
uses interfaces;
{$I page.inc}
{$I customnotebook.inc}
{$I notebook.inc}
{$I timer.inc}
{$I paintbox.inc}
{$I customradiogroup.inc}
{$I custompanel.inc}
{$I radiogroup.inc}
{$I bevel.inc}
{$I image.inc}
end.
{
$Log$
Revision 1.17 2002/02/03 00:24:00 lazarus
TPanel implemented.
Basic graphic primitives split into GraphType package, so that we can
reference it from interface (GTK, Win32) units.
New Frame3d canvas method that uses native (themed) drawing (GTK only).
New overloaded Canvas.TextRect method.
LCLLinux and Graphics was split, so a bunch of files had to be modified.
Revision 1.16 2002/01/01 15:50:13 lazarus
MG: fixed initial component aligning
Revision 1.15 2001/12/21 18:16:59 lazarus
Added TImage class
Shane
Revision 1.14 2001/11/05 18:18:19 lazarus
added popupmenu+arrows to notebooks, added target filename
Revision 1.12 2001/06/26 21:44:32 lazarus
MG: reduced paint messages
Revision 1.11 2001/06/12 18:31:01 lazarus
MG: small bugfixes
Revision 1.10 2001/04/17 21:39:17 lazarus
+ added working OnClick support for TCustomRadiogroup, stoppok
Revision 1.9 2001/04/06 22:28:09 lazarus
* TTimer uses winapi interface now instead of sendmessage interface, stoppok
Revision 1.8 2001/03/15 14:42:20 lazarus
MG: customradiogroup is now streamable
Revision 1.7 2001/01/12 18:27:31 lazarus
Streaming additions by MAttias
Shane
Revision 1.6 2001/01/09 21:06:06 lazarus
Started taking KeyDown messages in TDesigner
Shane
Revision 1.5 2001/01/09 18:23:20 lazarus
Worked on moving controls. It's just not working with the X and Y coord's I'm getting.
Shane
Revision 1.4 2001/01/05 18:56:23 lazarus
Minor changes
Revision 1.3 2001/01/04 20:33:53 lazarus
Moved lresources.
Moved CreateLFM to Main.pp
Changed Form1 and TFOrm1 to MainIDE and TMainIDE
Shane
Revision 1.2 2000/12/29 15:04:07 lazarus
Added more images to the resource.
Shane
Revision 1.1 2000/07/13 10:28:23 michael
+ Initial import
Revision 1.25 2000/06/29 21:06:14 lazarus
reintroduced TAbstractReader=Treader hack, stoppok
Revision 1.24 2000/06/28 13:11:37 lazarus
Fixed TNotebook so it gets page change events. Shane
Revision 1.23 2000/05/08 23:59:52 lazarus
Updated my email address in the documentation to the current one. Also
removed email references in comments that were not @author comments to
fix problems with the documentation produced by pasdoc. CAW
Revision 1.22 2000/02/26 23:31:50 lazarus
MWE:
Fixed notebook crash on insert
Fixed loadfont problem for win32 (tleast now a fontname is required)
Revision 1.21 2000/01/10 19:09:18 lazarus
MWE:
Removed temp hack TAbstractReader=TReader. It is now defined
Revision 1.20 2000/01/10 00:07:12 lazarus
MWE:
Added more scrollbar support for TWinControl
Most signals for TWinContorl are jet connected to the wrong widget
(now scrolling window, should be fixed)
Added some cvs entries
Revision 1.19 2000/01/07 21:14:13 lazarus
Added code for getwindowlong and setwindowlong.
Shane
Revision 1.18 2000/01/06 01:10:36 lazarus
Stoppok:
- changed ReadState to match current definition in fcl
(affects TPage & TCustomNotebook)
- added callback FItems.OnChanging to TCustomRadiogroup
Revision 1.17 2000/01/02 00:22:54 lazarus
stoppok:
- introduced TBevel
- enhanced TCustomRadioGroup
Revision 1.16 1999/12/31 02:20:57 lazarus
Initial implementation of TCustomRadioGroup / TRadioGroup
stoppok
Revision 1.15 1999/11/01 01:28:29 lazarus
MWE: Implemented HandleNeeded/CreateHandle/CreateWND
Now controls are created on demand. A call to CreateComponent shouldn't
be needed. It is now part of CreateWnd
Revision 1.14 1999/10/22 21:01:50 lazarus
Removed calls to InterfaceObjects except for controls.pp. Commented
out any gtk depend lines of code. MAH
Revision 1.13 1999/10/19 19:16:51 lazarus
renamed stdcontrols.pp stdctrls.pp
Shane
Revision 1.12 1999/10/04 23:36:25 lazarus
Moved PageList and Page property to public to allow access to them. CAW
Revision 1.11 1999/09/30 21:59:01 lazarus
MWE: Fixed TNoteBook problems
Modifications: A few
- Removed some debug messages
+ Added some others
* changed fixed widged of TPage. Code is still broken.
+ TWinControls are also added to the Controls collection
+ Added TControl.Controls[] property
Revision 1.10 1999/09/22 19:09:17 lazarus
Added some trace info for the TNotebook problem.
Revision 1.9 1999/09/21 23:46:54 lazarus
*** empty log message ***
Revision 1.8 1999/09/16 21:14:27 lazarus
Some cleanups to the timer class. (moved some comments to timer.inc,
added more comments and changed TTimer.Timer from function to procedure)
Stoppok
Revision 1.7 1999/09/13 03:27:10 lazarus
Fixed a bug in the PageIndex property of TCustomNotebook where
it was not tracking notebook pages if the user selected them
with the mouse in a TTabbedNotebook. caw
Revision 1.6 1999/08/26 23:36:02 peter
+ paintbox
+ generic keydefinitions and gtk conversion
* gtk state -> shiftstate conversion
Revision 1.5 1999/08/04 05:21:11 lazarus
Created TCustomNotebook to allow both TNotebook and TTabbedNotebook to
inherit from a common object. Made TNotebook work like Delphi TNotebook.
Revision 1.3 1999/07/31 06:39:22 lazarus
Modified the IntSendMessage3 to include a data variable. It isn't used
yet but will help in merging the Message2 and Message3 features.
Adjusted TColor routines to match Delphi color format
Added a TGdkColorToTColor routine in gtkproc.inc
Finished the TColorDialog added to comDialog example. MAH
}
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