{ /*************************************************************************** editbtn.pas ----------- Component Library Extended dialogs Controls ***************************************************************************/ ***************************************************************************** * * * This file is part of the Lazarus Component Library (LCL) * * * * See the file COPYING.modifiedLGPL.txt, included in this distribution, * * for details about the copyright. * * * * This program is distributed in the hope that it will be useful, * * but WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * * ***************************************************************************** } unit EditBtn; {$mode objfpc}{$H+} interface uses Classes, SysUtils, LCLProc, LResources, LCLStrConsts, LCLType, LMessages, Graphics, Controls, Forms, FileUtil, Dialogs, StdCtrls, Buttons, Calendar, ExtDlgs, CalendarPopup, MaskEdit; const NullDate: TDateTime = 0; type { TCustomEditButton } TCustomEditButton = class(TCustomMaskEdit) private FButton: TSpeedButton; FButtonNeedsFocus: Boolean; FDirectInput: Boolean; FIsReadOnly: boolean; FOnButtonClick : TNotifyEvent; function GetButtonHint: TTranslateString; function GetButtonWidth: Integer; function GetDirectInput: Boolean; function GetFlat: Boolean; procedure SetButtonHint(const AValue: TTranslateString); procedure SetButtonNeedsFocus(const AValue: Boolean); procedure SetButtonWidth(const AValue: Integer); procedure SetDirectInput(const AValue: Boolean); procedure SetFlat(const AValue: Boolean); procedure SetGlyph(Pic: TBitmap); function GetGlyph : TBitmap; procedure SetNumGlyphs(ANumber: Integer); function GetNumGlyphs:Integer; function GetMinHeight: Integer; procedure WMSetFocus(var Message: TLMSetFocus); message LM_SETFOCUS; procedure WMKillFocus(var Message: TLMKillFocus); message LM_KILLFOCUS; function IsCustomGlyph : Boolean; protected procedure CheckButtonVisible; function CalcButtonVisible: boolean; virtual; function CalcButtonEnabled: Boolean; virtual; function GetReadOnly: Boolean; override; function GetDefaultGlyph: TBitmap; virtual; function GetDefaultGlyphName: String; virtual; procedure SetParent(AParent: TWinControl); override; procedure SetReadOnly(AValue: Boolean); override; procedure DoPositionButton; virtual; procedure DoButtonClick (Sender: TObject); virtual; procedure Loaded; override; procedure Notification(AComponent: TComponent; Operation: TOperation); override; procedure CMVisibleChanged(var Msg: TLMessage); message CM_VISIBLECHANGED; procedure CMEnabledChanged(var Msg: TLMessage); message CM_ENABLEDCHANGED; procedure CMBiDiModeChanged(var Message: TLMessage); message CM_BIDIMODECHANGED; // New properties. property ButtonWidth : Integer read GetButtonWidth write SetButtonWidth; property DirectInput : Boolean read GetDirectInput write SetDirectInput default True; property Glyph : TBitmap read GetGlyph write SetGlyph stored IsCustomGlyph; property NumGlyphs : Integer read GetNumGlyphs write SetNumGlyphs; property OnButtonClick : TNotifyEvent read FOnButtonClick write FOnButtonClick; property Button: TSpeedButton read FButton; property ButtonHint: TTranslateString read GetButtonHint write SetButtonHint; public constructor Create(AOwner: TComponent); override; destructor Destroy; override; property Flat: Boolean read GetFlat write SetFlat default False; property ButtonOnlyWhenFocused: Boolean read FButtonNeedsFocus write SetButtonNeedsFocus default False; end; { TEditButton } TEditButton = class(TCustomEditButton) Public property Button; published property AutoSize; property AutoSelect; property Align; property Anchors; property BidiMode; property BorderSpacing; property BorderStyle; property ButtonOnlyWhenFocused; property ButtonWidth; property ButtonHint; property CharCase; property Color; property DirectInput; property DragCursor; property DragMode; property EchoMode; property Enabled; property Flat; property Font; property Glyph; property MaxLength; property NumGlyphs; property OnButtonClick; property OnChange; property OnClick; property OnDblClick; property OnDragDrop; property OnDragOver; property OnEditingDone; property OnEndDrag; property OnEnter; property OnExit; property OnKeyDown; property OnKeyPress; property OnKeyUp; property OnMouseDown; property OnMouseMove; property OnMouseUp; property OnStartDrag; property OnUTF8KeyPress; property ParentBidiMode; property ParentColor; property ParentFont; property ParentShowHint; property PasswordChar; property PopupMenu; property ReadOnly; property ShowHint; property TabOrder; property TabStop; property Text; property Visible; end; // Called when an item is filtered. Returns true if the item passes the filter. // Done=False means the data should also be filtered by its title string. // Done=True means no other filtering is needed. TFilterItemEvent = function (Item: TObject; out Done: Boolean): Boolean of object; // Can be used only for items that have a checkbox. Returns true if checked. TCheckItemEvent = function (Item: TObject): Boolean of object; { TCustomControlFilterEdit } // An abstract base class for edit controls which filter data in // visual controls like TListView and TTreeView. TCustomControlFilterEdit = class(TCustomEditButton) private fFilter: string; fIdleConnected: Boolean; fSortData: Boolean; // Data needs to be sorted. fUseFormActivate: Boolean; fIsFirstSetFormActivate: Boolean; fJustActivated: Boolean; fParentForm: TForm; fAfterFilter: TNotifyEvent; procedure SetFilter(const AValue: string); procedure SetIdleConnected(const AValue: Boolean); procedure OnIdle(Sender: TObject; var Done: Boolean); procedure SetUseFormActivate(AValue: Boolean); procedure FormActivate(Sender: TObject); // Connects to owning form. procedure FormDeactivate(Sender: TObject); protected fNeedUpdate: Boolean; fIsFirstUpdate: Boolean; fSelectedPart: TObject; // Select this node on next update fOnFilterItem: TFilterItemEvent; fOnCheckItem: TCheckItemEvent; procedure KeyDown(var Key: Word; Shift: TShiftState); override; procedure Change; override; procedure DoEnter; override; procedure DoExit; override; procedure DoButtonClick (Sender: TObject); override; procedure SortAndFilter; virtual; abstract; procedure ApplyFilter(Immediately: Boolean = False); procedure ApplyFilterCore; virtual; abstract; procedure MoveNext; virtual; abstract; procedure MovePrev; virtual; abstract; function ReturnPressed: Boolean; virtual; abstract; function GetDefaultGlyphName: String; override; public constructor Create(AOwner: TComponent); override; destructor Destroy; override; procedure InvalidateFilter; procedure StoreSelection; virtual; abstract; procedure RestoreSelection; virtual; abstract; public property Filter: string read fFilter write SetFilter; property IdleConnected: Boolean read fIdleConnected write SetIdleConnected; property SortData: Boolean read fSortData write fSortData; property SelectedPart: TObject read fSelectedPart write fSelectedPart; published property AfterFilter: TNotifyEvent read fAfterFilter write fAfterFilter; property OnFilterItem: TFilterItemEvent read fOnFilterItem write fOnFilterItem; property OnCheckItem: TCheckItemEvent read fOnCheckItem write fOnCheckItem; property UseFormActivate: Boolean read fUseFormActivate write SetUseFormActivate default False; // TEditButton properties. property ButtonWidth; property DirectInput; property ButtonOnlyWhenFocused; property NumGlyphs; property Flat; // Other properties property Align; property Anchors; property BidiMode; property BorderSpacing; property BorderStyle; property AutoSize; property AutoSelect; property Color; property DragCursor; property DragMode; property Enabled; property Font; property MaxLength; property ParentBidiMode; property ParentColor; property ParentFont; property ParentShowHint; property PopupMenu; property ReadOnly; property ShowHint; property TabOrder; property TabStop; property Visible; property OnChange; property OnClick; property OnDblClick; property OnDragDrop; property OnDragOver; property OnEditingDone; property OnEndDrag; property OnEnter; property OnExit; property OnKeyDown; property OnKeyPress; property OnKeyUp; property OnMouseDown; property OnMouseMove; property OnMouseUp; property OnStartDrag; property OnUTF8KeyPress; end; { TFileNameEdit } TAcceptFileNameEvent = procedure (Sender : TObject; Var Value : String) of Object; TDialogKind = (dkOpen,dkSave,dkPictureOpen,dkPictureSave); TFileNameEdit = class(TCustomEditButton) private FDialogOptions: TOpenOptions; FFileName : String; FDialogFiles : TStrings; FDialogKind: TDialogKind; FDialogTitle: String; FFilter: String; FFilterIndex: Integer; FDefaultExt: String; FHideDirectories: Boolean; FInitialDir: String; FOnAcceptFileName: TAcceptFileNameEvent; FOnFolderChange: TNotifyEvent; FFileNameChangeLock: Integer; procedure SetFileName(const AValue: String); protected function GetDefaultGlyph: TBitmap; override; function GetDefaultGlyphName: String; override; function CreateDialog(AKind: TDialogKind): TCommonDialog; virtual; procedure SaveDialogResult(AKind: TDialogKind; D: TCommonDialog); virtual; procedure DoButtonClick (Sender: TObject); override; procedure RunDialog; virtual; procedure TextChanged; override; procedure DoFolderChange(Sender:TObject); virtual; public constructor Create(AOwner: TComponent); override; destructor Destroy; override; property DialogFiles: TStrings read FDialogFiles; published // TFileName properties. property FileName: String read FFileName write SetFileName; property InitialDir: String read FInitialDir write FInitialDir; property OnAcceptFileName: TAcceptFileNameEvent read FOnAcceptFileName write FOnAcceptFileName; property OnFolderChange: TNotifyEvent read FOnFolderChange write FOnFolderChange; property DialogKind: TDialogKind read FDialogKind write FDialogKind default dkOpen; property DialogTitle: String read FDialogTitle write FDialogTitle; property DialogOptions: TOpenOptions read FDialogOptions write FDialogOptions default DefaultOpenDialogOptions; property Filter: String read FFilter write FFilter; property FilterIndex: Integer read FFilterIndex write FFIlterIndex; property DefaultExt: String read FDefaultExt write FDefaultExt; property HideDirectories: Boolean read FHideDirectories write FHideDirectories; // TEditButton properties. property ButtonWidth; property DirectInput; property ButtonOnlyWhenFocused; // property Glyph; property NumGlyphs; property Flat; // Other properties property Align; property Alignment; property Anchors; property AutoSelect; property BidiMode; property BorderSpacing; property BorderStyle; property AutoSize; property Color; property DragCursor; property DragMode; property Enabled; property Font; property MaxLength; property ParentBidiMode; property ParentColor; property ParentFont; property ParentShowHint; property PopupMenu; property ReadOnly; property ShowHint; property TabOrder; property TabStop; property Visible; property OnChange; property OnClick; property OnDblClick; property OnDragDrop; property OnDragOver; property OnEditingDone; property OnEndDrag; property OnEnter; property OnExit; property OnKeyDown; property OnKeyPress; property OnKeyUp; property OnMouseDown; property OnMouseMove; property OnMouseUp; property OnStartDrag; property OnUTF8KeyPress; end; { TDirectoryEdit } TDirectoryEdit = class(TCustomEditButton) private FDialogTitle: String; FRootDir: String; FOnAcceptDir: TAcceptFileNameEvent; FShowHidden: Boolean; function GetDirectory: String; procedure SetDirectory(const AValue: String); protected function GetDefaultGlyph: TBitmap; override; function GetDefaultGlyphName: String; override; function CreateDialog: TCommonDialog; virtual; function GetDialogResult(D : TCommonDialog) : String; virtual; procedure DoButtonClick (Sender: TObject); override; procedure RunDialog; virtual; public published // TDirectory properties. property Directory: String read GetDirectory write SetDirectory; property RootDir: String read FRootDir write FRootDir; property OnAcceptDirectory: TAcceptFileNameEvent read FOnAcceptDir write FonAcceptDir; property DialogTitle: String read FDialogTitle write FDialogTitle; property ShowHidden: Boolean read FShowHidden write FShowHidden; // TEditButton properties. property ButtonWidth; property DirectInput; property ButtonOnlyWhenFocused; // property Glyph; property NumGlyphs; property Flat; // Other properties property Align; property Anchors; property AutoSize; property AutoSelect; property BidiMode; property BorderSpacing; property BorderStyle; property Color; property DragCursor; property DragMode; property Enabled; property Font; property MaxLength; property ParentBidiMode; property ParentColor; property ParentFont; property ParentShowHint; property PopupMenu; property ReadOnly; property ShowHint; property TabOrder; property TabStop; property Visible; property OnChange; property OnClick; property OnDblClick; property OnDragDrop; property OnDragOver; property OnEditingDone; property OnEndDrag; property OnEnter; property OnExit; property OnKeyDown; property OnKeyPress; property OnKeyUp; property OnMouseDown; property OnMouseMove; property OnMouseUp; property OnStartDrag; property OnUTF8KeyPress; end; { TDateEdit } TAcceptDateEvent = procedure (Sender : TObject; var ADate : TDateTime; var AcceptDate: Boolean) of object; TCustomDateEvent = procedure (Sender : TObject; var ADate : string) of object; TDateOrder = (doNone,doMDY,doDMY,doYMd); { TDateEdit } TDateEdit = class(TCustomEditButton) private FDateOrder: TDateOrder; FDefaultToday: Boolean; FDialogTitle: TCaption; FDisplaySettings: TDisplaySettings; FDroppedDown: Boolean; FOnAcceptDate: TAcceptDateEvent; FOnCustomDate: TCustomDateEvent; FOKCaption: TCaption; FCancelCaption: TCaption; FDateFormat: string; function GetDate: TDateTime; function IsStoreTitle: boolean; procedure SetDate(Value: TDateTime); procedure CalendarPopupReturnDate(Sender: TObject; const ADate: TDateTime); procedure CalendarPopupShowHide(Sender: TObject); procedure SetDateOrder(const AValue: TDateOrder); protected function GetDefaultGlyph: TBitmap; override; function GetDefaultGlyphName: String; override; procedure DoButtonClick(Sender: TObject); override; procedure DblClick; override; procedure SetDateMask; virtual; public constructor Create(AOwner: TComponent); override; procedure DateFormatChanged; virtual; function GetDateFormat: string; property Date: TDateTime read GetDate write SetDate; property Button; property DroppedDown: Boolean read FDroppedDown; published property DialogTitle: TCaption read FDialogTitle write FDialogTitle stored IsStoreTitle; property CalendarDisplaySettings: TDisplaySettings read FDisplaySettings write FDisplaySettings; property OnAcceptDate: TAcceptDateEvent read FOnAcceptDAte write FOnAcceptDate; property OnCustomDate: TCustomDateEvent read FOnCustomDate write FOnCustomDate; property OKCaption: TCaption read FOKCaption write FOKCaption; property CancelCaption: TCaption read FCancelCaption write FCancelCaption; property ReadOnly; property DefaultToday: Boolean read FDefaultToday write FDefaultToday default False; Property DateOrder : TDateOrder Read FDateOrder Write SetDateOrder; property ButtonOnlyWhenFocused; property ButtonWidth; property Action; property Align; property Anchors; property AutoSize; property AutoSelect; property BidiMode; property BorderSpacing; property BorderStyle; property CharCase; property Color; property Constraints; property DirectInput; property Glyph; property NumGlyphs; property DragMode; property EchoMode; property Enabled; property Font; property MaxLength; property OnChange; property OnChangeBounds; property OnClick; property OnEditingDone; property OnEnter; property OnExit; property OnKeyDown; property OnKeyPress; property OnKeyUp; property OnMouseDown; property OnMouseMove; property OnMouseUp; property OnResize; property OnUTF8KeyPress; property ParentBidiMode; property ParentFont; property ParentShowHint; property PopupMenu; property ShowHint; property TabStop; property TabOrder; property Visible; end; { TCalcEdit } TAcceptValueEvent = procedure(Sender: TObject; var AValue: Double; var Action: Boolean) of object; TCalcEdit = class(TCustomEditButton) private FDialogTitle: String; FLayout: TCalculatorLayout; FOnAcceptValue: TAcceptValueEvent; function GetAsFloat: Double; function GetAsInteger: Integer; procedure SetAsFloat(const AValue: Double); procedure SetAsInteger(const AValue: Integer); function TitleStored: boolean; protected FCalcDialog : TForm; function GetDefaultGlyph: TBitmap; override; function GetDefaultGlyphName: String; override; procedure DoButtonClick (Sender: TObject); override; procedure RunDialog; virtual; public constructor Create(AOwner: TComponent); override; published // CalcEdit properties property CalculatorLayout : TCalculatorLayout read FLayout write Flayout; property AsFloat : Double read GetAsFloat write SetAsFloat; property AsInteger : Integer read GetAsInteger write SetAsInteger; property OnAcceptValue : TAcceptValueEvent read FOnAcceptValue write FOnAcceptValue; property DialogTitle : String read FDialogTitle write FDialogTitle stored TitleStored; // TEditButton properties. property ButtonWidth; property DirectInput; property ButtonOnlyWhenFocused; // property Glyph; property NumGlyphs; property Flat; // Other properties property Align; property Anchors; property BidiMode; property BorderSpacing; property BorderStyle; property AutoSize; property AutoSelect; property Color; property DragCursor; property DragMode; property Enabled; property Font; property MaxLength; property ParentBidiMode; property ParentColor; property ParentFont; property ParentShowHint; property PopupMenu; property ReadOnly; property ShowHint; property TabOrder; property TabStop; property Visible; property OnChange; property OnClick; property OnDblClick; property OnDragDrop; property OnDragOver; property OnEditingDone; property OnEndDrag; property OnEnter; property OnExit; property OnKeyDown; property OnKeyPress; property OnKeyUp; property OnMouseDown; property OnMouseMove; property OnMouseUp; property OnStartDrag; property OnUTF8KeyPress; end; var FileOpenGlyph: TBitmap; DateGlyph: TBitmap; CalcGlyph: TBitmap; const ResBtnListFilter = 'btnfiltercancel'; ResBtnFileOpen = 'btnselfile'; ResBtnSelDir = 'btnseldir'; ResBtnCalendar = 'btncalendar'; ResBtnCalculator = 'btncalculator'; procedure Register; implementation { TCustomEditButton } constructor TCustomEditButton.Create(AOwner: TComponent); var B: TBitmap; begin inherited Create(AOwner); FDirectInput := True; FButton := TSpeedButton.Create(Self); FButton.Width := Self.Height; FButton.Height := Self.Height; FButton.FreeNotification(Self); CheckButtonVisible; FButton.OnClick := @DoButtonClick; FButton.Cursor := crArrow; FButton.ControlStyle := FButton.ControlStyle + [csNoDesignSelectable]; B := GetDefaultGlyph; if B = nil then FButton.LoadGlyphFromLazarusResource(GetDefaultGlyphName) else FButton.Glyph := B; ControlStyle := ControlStyle - [csSetCaption]; end; destructor TCustomEditButton.Destroy; begin FreeAndNil(FButton); inherited Destroy; end; procedure TCustomEditButton.SetGlyph(Pic: TBitmap); Begin FButton.Glyph:=Pic; end; function TCustomEditButton.GetButtonWidth: Integer; begin Result:=FButton.Width; end; function TCustomEditButton.GetDefaultGlyph: TBitmap; begin Result := nil; end; function TCustomEditButton.GetDefaultGlyphName: String; begin Result := ''; end; function TCustomEditButton.GetButtonHint: TTranslateString; begin Result:=FButton.Hint; end; function TCustomEditButton.GetDirectInput: Boolean; begin Result := FDirectInput; end; function TCustomEditButton.GetFlat: Boolean; begin if Assigned(FButton) then Result := FButton.Flat else Result := False; end; function TCustomEditButton.CalcButtonVisible: boolean; begin Result := (csdesigning in ComponentState) or (Visible and (Focused or not FButtonNeedsFocus)); end; procedure TCustomEditButton.CheckButtonVisible; begin If Assigned(FButton) then FButton.Visible:=CalcButtonVisible; end; procedure TCustomEditButton.SetButtonHint(const AValue: TTranslateString); begin FButton.Hint:=AValue; end; procedure TCustomEditButton.SetButtonNeedsFocus(const AValue: Boolean); begin if FButtonNeedsFocus<>AValue then begin FButtonNeedsFocus:=AValue; CheckButtonVisible; end; end; procedure TCustomEditButton.SetButtonWidth(const AValue: Integer); begin FButton.Width:=AValue; end; procedure TCustomEditButton.SetDirectInput(const AValue: Boolean); begin FDirectInput := AValue; inherited SetReadOnly((not FDirectInput) or (FIsReadOnly)) end; procedure TCustomEditButton.SetFlat(const AValue: Boolean); begin if Assigned(FButton) then FButton.Flat:=AValue; end; function TCustomEditButton.GetGlyph : TBitmap; begin Result:=FButton.Glyph; end; procedure TCustomEditButton.SetNumGlyphs(ANumber: Integer); begin FButton.NumGlyphs:=ANumber; end; function TCustomEditButton.GetNumGlyphs:Integer; begin Result:=FButton.NumGlyphs; end; procedure TCustomEditButton.Notification(AComponent: TComponent; Operation: TOperation); begin inherited Notification(AComponent, Operation); if (AComponent = FButton) and (Operation = opRemove) then FButton := nil; end; procedure TCustomEditButton.CMVisibleChanged(var Msg: TLMessage); begin inherited CMVisibleChanged(Msg); CheckButtonVisible; end; procedure TCustomEditButton.CMEnabledChanged(var Msg: TLMessage); begin inherited CMEnabledChanged(Msg); if (FButton<>nil) then FButton.Enabled:=CalcButtonEnabled; end; procedure TCustomEditButton.CMBiDiModeChanged(var Message: TLMessage); begin inherited; DoPositionButton; end; function TCustomEditButton.GetMinHeight: Integer; begin Result:=23; end; procedure TCustomEditButton.DoButtonClick (Sender: TObject); begin if not ReadOnly then if Assigned(FOnButtonClick) then FOnButtonClick(Self); end; procedure TCustomEditButton.Loaded; begin inherited Loaded; DoPositionButton; CheckButtonVisible; end; procedure TCustomEditButton.WMKillFocus(var Message: TLMKillFocus); begin CheckButtonVisible; inherited; end; function TCustomEditButton.IsCustomGlyph : Boolean; function _LoadRes: TBitmap; var ResName: String; C : TCustomBitmap; begin ResName := GetDefaultGlyphName; if ResName = '' then Exit(nil); Result := TBitmap.Create; try try C := CreateBitmapFromLazarusResource(ResName); Result.Assign(C); // the "Equals" did not work with ClassType different // maybe it should compare the "RawImage" because it is independent of ClassType finally C.Free; end; except Result.Free; raise; end; end; var B, GlypRes, GlypActual: TBitmap; begin GlypActual := nil; GlypRes := nil; try B := GetDefaultGlyph; if B = nil then // if Default Glyph is nil, use the resource begin GlypRes := _LoadRes; B := GlypRes; end; if B = nil then Result := Glyph <> nil else if Glyph = nil then Result := True else begin GlypActual := TBitmap.Create; // the "Equals" did not work with ClassType different. GlypActual.Assign(Glyph); Result := not GlypActual.Equals(B); end; finally GlypRes.Free; GlypActual.Free; end; end; function TCustomEditButton.GetReadOnly: Boolean; begin Result := FIsReadOnly; end; procedure TCustomEditButton.SetParent(AParent: TWinControl); begin inherited SetParent(AParent); if FButton <> nil then begin DoPositionButton; CheckButtonVisible; end; end; function TCustomEditButton.CalcButtonEnabled: Boolean; begin Result := not FIsReadOnly and Enabled; end; procedure TCustomEditButton.SetReadOnly(AValue: Boolean); begin FIsReadOnly := AValue; if Assigned(FButton) then FButton.Enabled := CalcButtonEnabled; inherited SetReadOnly(FIsReadOnly or (not DirectInput)); end; procedure TCustomEditButton.DoPositionButton; begin if FButton = nil then exit; FButton.Parent := Parent; if BiDiMode = bdLeftToRight then FButton.AnchorToCompanion(akLeft,0,Self) else FButton.AnchorToCompanion(akRight,0,Self); end; procedure TCustomEditButton.WMSetFocus(var Message: TLMSetFocus); begin CheckButtonVisible; inherited; end; { TCustomControlFilterEdit } constructor TCustomControlFilterEdit.Create(AOwner: TComponent); begin inherited Create(AOwner); CharCase:=ecLowerCase; Button.Enabled:=False; fIsFirstUpdate:=True; fIsFirstSetFormActivate:=True; end; destructor TCustomControlFilterEdit.Destroy; begin inherited Destroy; end; procedure TCustomControlFilterEdit.OnIdle(Sender: TObject; var Done: Boolean); begin if fNeedUpdate then ApplyFilter(true); IdleConnected:=false; if Assigned(fAfterFilter) then fAfterFilter(Self); end; procedure TCustomControlFilterEdit.SetUseFormActivate(AValue: Boolean); var c: TWinControl; begin if fUseFormActivate=AValue then Exit; fUseFormActivate:=AValue; c:=Parent; // Find the parent form while Assigned(c) and not (c is TForm) do c:=c.Parent; // Found: set or remove Activate and Deactivate handlers if c is TForm then begin fParentForm:=TForm(c); if AValue then begin // Set handlers if fIsFirstSetFormActivate then begin if Assigned(fParentForm.OnActivate) or Assigned(fParentForm.OnDeactivate) then raise Exception.Create('TCustomControlFilterEdit.SetUseFormActivate:'+ ' OnActivate handler already set in parent form'); fIsFirstSetFormActivate:=False; end; fParentForm.OnActivate:=@FormActivate; fParentForm.OnDeactivate:=@FormDeactivate; end else begin // Remove handlers fParentForm.OnActivate:=nil; fParentForm.OnDeactivate:=nil; end; end else raise Exception.Create('TCustomControlFilterEdit.SetUseFormActivate: This control'+ ' has no TForm in the parent chain. You should disable UseFormActivate.'); end; procedure TCustomControlFilterEdit.FormActivate(Sender: TObject); begin fJustActivated:=fParentForm.ActiveControl=Self; if fParentForm.ActiveControl=Self then Filter:=Text; end; procedure TCustomControlFilterEdit.FormDeactivate(Sender: TObject); begin fJustActivated:=False; end; procedure TCustomControlFilterEdit.SetFilter(const AValue: string); var NewValue: String; begin if AValue=lisCEFilter then NewValue:='' else NewValue:=AValue; Button.Enabled:=NewValue<>''; if (NewValue='') and not (Focused or fJustActivated) then begin Text:=lisCEFilter; Font.Color:=clBtnShadow; end else begin Text:=NewValue; Font.Color:=clDefault; end; if fFilter=NewValue then exit; fFilter:=NewValue; ApplyFilter; end; procedure TCustomControlFilterEdit.SetIdleConnected(const AValue: Boolean); begin if fIdleConnected=AValue then exit; fIdleConnected:=AValue; if fIdleConnected then Application.AddOnIdleHandler(@OnIdle) else Application.RemoveOnIdleHandler(@OnIdle); end; procedure TCustomControlFilterEdit.KeyDown(var Key: Word; Shift: TShiftState); var Handled: Boolean; begin Handled:=False; if Shift = [] then case Key of VK_UP: begin MovePrev; Handled:=True; end; VK_DOWN: begin MoveNext; Handled:=True; end; VK_RETURN: Handled:=ReturnPressed; end; if Handled then Key:=VK_UNKNOWN else inherited KeyDown(Key, Shift); end; procedure TCustomControlFilterEdit.Change; begin Filter:=Text; inherited; end; procedure TCustomControlFilterEdit.DoEnter; begin // inherited; fJustActivated:=False; if Text=lisCEFilter then Text:=''; end; procedure TCustomControlFilterEdit.DoExit; begin fJustActivated:=False; Filter:=Text; // inherited; end; procedure TCustomControlFilterEdit.DoButtonClick(Sender: TObject); begin fJustActivated:=False; Filter:=''; end; procedure TCustomControlFilterEdit.ApplyFilter(Immediately: Boolean); begin if Immediately then begin fNeedUpdate := False; SortAndFilter; if (fSelectedPart=Nil) and not fIsFirstUpdate then StoreSelection; // At first round the selection is from caller fIsFirstUpdate:=False; ApplyFilterCore; // The actual filtering implemented by inherited class. fSelectedPart:=Nil; RestoreSelection; end else begin if [csDestroying,csDesigning]*ComponentState=[] then InvalidateFilter; end; end; procedure TCustomControlFilterEdit.InvalidateFilter; begin fNeedUpdate:=true; IdleConnected:=true; end; function TCustomControlFilterEdit.GetDefaultGlyphName: String; begin Result := ResBtnListFilter; end; { TFileNameEdit } constructor TFileNameEdit.Create(AOwner: TComponent); begin inherited Create(AOwner); FDialogFiles := TStringList.Create; FDialogKind := dkOpen; FDialogOptions := DefaultOpenDialogOptions; end; destructor TFileNameEdit.Destroy; begin FreeAndNil(FDialogFiles); inherited Destroy; end; procedure TFileNameEdit.SetFileName(const AValue: String); begin if FFileNameChangeLock > 0 then Exit; FFileName := AValue; Inc(FFileNameChangeLock); try if FHideDirectories then inherited RealSetText(ExtractFileName(AValue)) else inherited RealSetText(AValue) finally Dec(FFileNameChangeLock); end; end; function TFileNameEdit.CreateDialog(AKind: TDialogKind): TCommonDialog; var O: TOpenDialog; S: TSaveDialog; Dir: String; begin case AKind of dkOpen, dkPictureOpen: begin O := TOpenDialog.Create(Self); Result := O; end; dkSave, dkPictureSave: begin S:=TSaveDialog.Create(Self); S.DefaultExt := FDefaultExt; Result := S; end; end; if Result is TOpenDialog then begin O:=TOpenDialog(Result); Dir:=ExtractFilePath(Filename); if (Dir<>'') and DirPathExists(Dir) then // setting a FileName with path disables InitialDir O.FileName := FileName else begin // do not use path, so that InitialDir works O.FileName := ExtractFileName(Filename); end; O.Options := DialogOptions; O.Filter := Filter; O.FilterIndex := FilterIndex; O.InitialDir := CleanAndExpandDirectory(InitialDir); end; // Set some common things. Result.Title := DialogTitle; end; procedure TFileNameEdit.SaveDialogResult(AKind: TDialogKind; D: TCommonDialog); var FN: String; begin case AKind of dkOpen, dkPictureOpen : begin FilterIndex := TOpenDialog(D).FilterIndex; FN := TOpenDialog(D).FileName; if (FN <> '') then begin if Assigned(OnAcceptFileName) then OnAcceptFileName(Self, FN); end; if (FN <> '') then begin // set FDialogFiles first since assigning of FileName trigger events FDialogFiles.Text := TOpenDialog(D).Files.Text; FileName := FN; end; end; dkSave, dkPictureSave : begin FileName := TSaveDialog(D).FileName; FilterIndex := TSaveDialog(D).FilterIndex; FDialogFiles.Clear; end; end; end; procedure TFileNameEdit.DoButtonClick(Sender: TObject); begin inherited DoButtonClick(Sender); RunDialog; end; function TFileNameEdit.GetDefaultGlyph: TBitmap; begin Result := FileOpenGlyph; end; function TFileNameEdit.GetDefaultGlyphName: String; begin Result := ResBtnFileOpen; end; procedure TFileNameEdit.RunDialog; var D: TCommonDialog; begin D := CreateDialog(DialogKind); try if D.Execute then SaveDialogResult(DialogKind, D); finally D.Free; end end; procedure TFileNameEdit.TextChanged; begin if FFileNameChangeLock <= 0 then begin Inc(FFileNameChangeLock); try if FHideDirectories and (ExtractFilePath(Text) = '') then FFileName := ExtractFilePath(FFileName) + Text else FFileName := Text; finally Dec(FFileNameChangeLock); end; end; inherited TextChanged; //do this _after_ we have updated FFileName end; procedure TFileNameEdit.DoFolderChange(Sender: TObject); begin if Assigned(FOnFolderChange) then FOnFolderChange(Self); end; { TDirectoryEdit } procedure TDirectoryEdit.SetDirectory(const AValue: String); begin if (Text<>AValue) then Text:=AValue; end; function TDirectoryEdit.CreateDialog: TCommonDialog; begin Result:=TSelectDirectoryDialog.Create(Self); if DirPathExists(Directory) then begin TSelectDirectoryDialog(Result).InitialDir:=Directory; TSelectDirectoryDialog(Result).FileName:=''; end else begin TSelectDirectoryDialog(Result).InitialDir:=RootDir; TSelectDirectoryDialog(Result).FileName:=Directory; end; // Set some common things. Result.Title := DialogTitle; end; function TDirectoryEdit.GetDialogResult(D: TCommonDialog) : String; begin Result:=TSelectDirectoryDialog(D).FileName; end; procedure TDirectoryEdit.DoButtonClick(Sender: TObject); begin inherited DoButtonClick(Sender); RunDialog; end; function TDirectoryEdit.GetDefaultGlyph: TBitmap; begin Result := FileOpenGlyph; end; function TDirectoryEdit.GetDefaultGlyphName: String; begin Result := ResBtnSelDir; end; procedure TDirectoryEdit.RunDialog; var D: String; Dlg: TCommonDialog; B: Boolean; begin Dlg:=CreateDialog; try B:=Dlg.Execute; if B then D:=GetDialogResult(Dlg); finally Dlg.Free; end; if B then begin if Assigned(FOnAcceptDir) then begin FOnAcceptdir(Self,D); if (D<>'') then Directory:=D; end else Directory:=D; end; end; function TDirectoryEdit.GetDirectory: String; begin Result:=Text; end; { TDateEdit } function StrToDateDef(cDate: String; dDefault: TDateTime): TDateTime; begin try Result := StrToDate(cDate) except Result := dDefault; end; end; constructor TDateEdit.Create(AOwner: TComponent); begin inherited Create(AOwner); FDefaultToday := False; FDisplaySettings := [dsShowHeadings, dsShowDayNames]; DialogTitle := rsPickDate; OKCaption := 'OK'; CancelCaption := 'Cancel'; DateFormatChanged; end; procedure TDateEdit.DateFormatChanged; begin FDateFormat := DefaultFormatSettings.ShortDateFormat; end; function TDateEdit.GetDateFormat: string; begin Result := FDateFormat; end; function TDateEdit.GetDefaultGlyph: TBitmap; begin Result := DateGlyph; end; function TDateEdit.GetDefaultGlyphName: String; begin Result := ResBtnCalendar; end; procedure TDateEdit.DoButtonClick(Sender: TObject);//or onClick var PopupOrigin: TPoint; ADate: TDateTime; begin inherited DoButtonClick(Sender); PopupOrigin := ControlToScreen(Point(0, Height)); ADate := GetDate; if ADate = NullDate then ADate := SysUtils.Date; ShowCalendarPopup(PopupOrigin, ADate, CalendarDisplaySettings, @CalendarPopupReturnDate, @CalendarPopupShowHide) end; procedure TDateEdit.DblClick; begin inherited DblClick; if not ReadOnly then DoButtonClick(nil); end; procedure TDateEdit.SetDateMask; Var S : String; D : TDateTime; begin Case DateOrder of doNone : begin S:=''; // no mask FDateFormat:=''; end; doDMY, doMDY : begin S:='99/99/9999;1;_'; if DateOrder=doMDY then FDateFormat:='mm/dd/yyyy' else FDateFormat:='dd/mm/yyyy'; end; doYMD : begin S:='9999/99/99;1;_'; FDateFormat:='yyyy/mm/dd'; end; end; D:=GetDate; EditMask:=S; SetDate(D); end; Function ParseDate(S : String; Order : TDateOrder; Def: TDateTime) : TDateTime; Var P,N1,N2,N3 : Integer; B : Boolean; begin Result:=Def; P:=Pos(DefaultFormatSettings.DateSeparator,S); If (P=0) then Exit; N1:=StrToIntDef(Copy(S,1,P-1),-1); If (N1=-1) then Exit; Delete(S,1,P); P:=Pos(DefaultFormatSettings.DateSeparator,S); If (P=0) then Exit; N2:=StrToIntDef(Copy(S,1,P-1),-1); If (N1=0) then Exit; Delete(S,1,P); N3:=StrToIntDef(S,-1); If (N3=-1) then exit; Case Order of doYMD : B:=TryEncodeDate(N1,N2,N3,Result); doMDY : B:=TryEncodeDate(N3,N1,N2,Result); doDMY : B:=TryEncodeDate(N3,N2,N1,Result); end; If not B then // Not sure if TryEncodeDate touches Result. Result:=Def; end; function TDateEdit.GetDate: TDateTime; var ADate: string; begin if FDefaultToday then Result := SysUtils.Date else Result := NullDate; ADate := Trim(Text); if ADate <> '' then begin if Assigned(FOnCustomDate) then FOnCustomDate(Self, ADate); if (DateOrder = doNone) then Result := StrToDateDef(ADate, Result) else Result := ParseDate(ADate,DateOrder,Result) end; end; function TDateEdit.IsStoreTitle: boolean; begin Result := DialogTitle <> rsPickDate; end; procedure TDateEdit.SetDate(Value: TDateTime); begin if {not IsValidDate(Value) or }(Value = NullDate) then begin if DefaultToday then Value := SysUtils.Date else Value := NullDate; end; if Value = NullDate then Text := '' else begin if (FDateFormat = '') then Text := DateToStr(Value) else Text := FormatDateTime(FDateFormat, Value) end; end; procedure TDateEdit.CalendarPopupReturnDate(Sender: TObject; const ADate: TDateTime); var B: Boolean; D: TDateTime; begin try B := True; D := ADate; if Assigned(FOnAcceptDate) then FOnAcceptDate(Self, D, B); if B then Self.Date := D; except on E:Exception do MessageDlg(E.Message, mtError, [mbOK], 0); end; end; procedure TDateEdit.CalendarPopupShowHide(Sender: TObject); begin FDroppedDown := (Sender as TForm).Visible; end; procedure TDateEdit.SetDateOrder(const AValue: TDateOrder); begin if FDateOrder=AValue then exit; FDateOrder:=AValue; SetDateMask; end; { TCalcEdit } function TCalcEdit.GetAsFloat: Double; begin Result := StrToFloatDef(Trim(Text), 0.0); end; function TCalcEdit.GetAsInteger: Integer; begin Result:=StrToIntDef(Text,0); end; function TCalcEdit.GetDefaultGlyph: TBitmap; begin Result := CalcGlyph; end; function TCalcEdit.GetDefaultGlyphName: String; begin Result := ResBtnCalculator; end; procedure TCalcEdit.SetAsFloat(const AValue: Double); begin Text:=FloatToStr(AValue); end; procedure TCalcEdit.SetAsInteger(const AValue: Integer); begin Text:=IntToStr(AValue); end; function TCalcEdit.TitleStored: boolean; begin Result:=FDialogTitle<>rsCalculator; end; procedure TCalcEdit.DoButtonClick(Sender: TObject); begin inherited DoButtonClick(Sender); RunDialog; end; procedure TCalcEdit.RunDialog; var D : Double; B : Boolean; begin D:=AsFloat; with CreateCalculatorForm(Self,FLayout,0) do try Caption:=DialogTitle; Value:=D; if (ShowModal=mrOK) then begin D:=Value; B:=True; If Assigned(FOnAcceptValue) then FOnAcceptValue(Self,D,B); if B then AsFloat:=D; end; finally Free; end; end; constructor TCalcEdit.Create(AOwner: TComponent); begin inherited Create(AOwner); FdialogTitle:=rsCalculator; end; procedure Register; begin RegisterComponents('Misc', [TEditButton,TFileNameEdit,TDirectoryEdit, TDateEdit,TCalcEdit]); end; initialization {$i lcl_edbtnimg.lrs} end.