david
3b29f73ece
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.DevExpressVCL@8 05c56307-c608-d34a-929d-697000501d7a
1952 lines
56 KiB
ObjectPascal
1952 lines
56 KiB
ObjectPascal
{********************************************************************}
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{ }
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{ Developer Express Visual Component Library }
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{ ExpressEditors }
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{ }
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{ Copyright (c) 1998-2007 Developer Express Inc. }
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{ ALL RIGHTS RESERVED }
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{ }
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{ The entire contents of this file is protected by U.S. and }
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{ International Copyright Laws. Unauthorized reproduction, }
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{ reverse-engineering, and distribution of all or any portion of }
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{ the code contained in this file is strictly prohibited and may }
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{ result in severe civil and criminal penalties and will be }
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{ prosecuted to the maximum extent possible under the law. }
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{ }
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{ RESTRICTIONS }
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{ }
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{ THIS SOURCE CODE AND ALL RESULTING INTERMEDIATE FILES }
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{ (DCU, OBJ, DLL, ETC.) ARE CONFIDENTIAL AND PROPRIETARY TRADE }
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{ SECRETS OF DEVELOPER EXPRESS INC. THE REGISTERED DEVELOPER IS }
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{ LICENSED TO DISTRIBUTE THE EXPRESSEDITORS AND ALL }
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{ ACCOMPANYING VCL CONTROLS AS PART OF AN EXECUTABLE PROGRAM ONLY. }
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{ }
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{ THE SOURCE CODE CONTAINED WITHIN THIS FILE AND ALL RELATED }
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{ FILES OR ANY PORTION OF ITS CONTENTS SHALL AT NO TIME BE }
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{ COPIED, TRANSFERRED, SOLD, DISTRIBUTED, OR OTHERWISE MADE }
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{ AVAILABLE TO OTHER INDIVIDUALS WITHOUT EXPRESS WRITTEN CONSENT }
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{ AND PERMISSION FROM DEVELOPER EXPRESS INC. }
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{ }
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{ CONSULT THE END USER LICENSE AGREEMENT FOR INFORMATION ON }
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{ ADDITIONAL RESTRICTIONS. }
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{ }
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{********************************************************************}
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unit cxButtons;
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{$I cxVer.inc}
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interface
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uses
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{$IFDEF VCL}
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Windows, Messages, dxThemeManager,
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{$ELSE}
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Qt, QTypes,
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{$ENDIF}
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{$IFDEF DELPHI6}
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Types,
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{$ENDIF}
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Classes, Controls, Graphics, StdCtrls, Forms, Menus,
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cxGraphics, cxLookAndFeels, cxLookAndFeelPainters, Buttons, cxControls,
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cxContainer;
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const
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{$IFDEF VCL}
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CM_DROPDOWNPOPUPMENU = WM_APP + 300;
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CM_CLOSEUPPOPUPMENU = WM_APP + 301;
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{$ELSE}
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QEventType_CMDropDownPopupMenu = QEventType(Integer(QEventType_ClxUser) + 301);
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QEventType_CMCloseUpPopupMenu = QEventType(Integer(QEventType_ClxUser) + 302);
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{$ENDIF}
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cxDropDownButtonWidth = 15;
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type
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TcxCustomButton = class;
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TcxButtonKind = (cxbkStandard, cxbkDropDown, cxbkDropDownButton);
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TcxButtonAssignedColors = set of TcxButtonState;
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TcxButtonGetDrawParamsEvent = procedure(Sender: TcxCustomButton;
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AState: TcxButtonState; var AColor: TColor; AFont: TFont) of object;
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{ TcxButtonColors }
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TcxButtonColors = class(TPersistent)
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private
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FButton: TcxCustomButton;
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FAssignedColors: TcxButtonAssignedColors;
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FColors: array[TcxButtonState] of TColor;
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function GetBackgroundColor(AState: TcxButtonState): TColor;
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function GetColor(const Index: Integer): TColor;
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function IsStored(const Index: Integer): Boolean;
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procedure SetAssignedColors(Value: TcxButtonAssignedColors);
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procedure SetColor(const Index: Integer; const Value: TColor);
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public
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constructor Create(AOwner: TcxCustomButton);
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procedure Assign(Source: TPersistent); override;
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published
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property AssignedColors: TcxButtonAssignedColors read FAssignedColors write SetAssignedColors stored False;
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property Default: TColor index Ord(cxbsDefault) read GetColor write SetColor stored IsStored;
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property Normal: TColor index Ord(cxbsNormal) read GetColor write SetColor stored IsStored;
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property Hot: TColor index Ord(cxbsHot) read GetColor write SetColor stored IsStored;
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property Pressed: TColor index Ord(cxbsPressed) read GetColor write SetColor stored IsStored;
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property Disabled: TColor index Ord(cxbsDisabled) read GetColor write SetColor stored IsStored;
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end;
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{ TcxGlyphList }
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TcxGlyphList = class(TImageList)
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private
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FUsed: TBits;
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FCount: Integer;
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function AllocateIndex(ABitmap: TBitmap): Integer;
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public
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constructor CreateSize(AWidth, AHeight: Integer);
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destructor Destroy; override;
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function AddMasked(AImage: TBitmap; AMaskColor: TColor): Integer; reintroduce;
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procedure Delete(AIndex: Integer);
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property Count: Integer read FCount;
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end;
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{ TcxButtonGlyph }
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TcxButtonGlyph = class
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private
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FOriginal: TBitmap;
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FGlyphList: TcxGlyphList;
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FIndexs: array[TButtonState] of Integer;
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FTransparentColor: TColor;
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FNumGlyphs: TNumGlyphs;
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FOnChange: TNotifyEvent;
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procedure GlyphChanged(Sender: TObject);
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procedure SetGlyph(Value: TBitmap);
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procedure SetNumGlyphs(Value: TNumGlyphs);
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procedure Invalidate;
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function CreateButtonGlyph(AState: TcxButtonState): Integer; virtual;
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procedure DrawButtonGlyph(ACanvas: TCanvas; const AGlyphPos: TPoint;
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AState: TcxButtonState);
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procedure DrawButtonText(ACanvas: TCanvas; const ACaption: TCaption;
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ATextBounds: TRect; AState: TcxButtonState{$IFDEF VCL}; ABiDiFlags: LongInt;
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ANativeStyle: Boolean{$IFDEF DELPHI7}; AWordWrap: Boolean{$ENDIF}{$ENDIF});
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procedure CalcButtonLayout(ACanvas: TCanvas; const AClient: TRect;
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const AOffset: TPoint; const ACaption: TCaption; ALayout: TButtonLayout;
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AMargin, ASpacing: Integer; var GlyphPos: TPoint; var TextBounds: TRect
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{$IFDEF VCL}; ABiDiFlags: LongInt{$IFDEF DELPHI7}; AWordWrap: Boolean{$ENDIF}{$ENDIF});
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protected
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function CanWordWrapText{$IFDEF DELPHI7}(AWordWrap: Boolean){$ENDIF}: Boolean;
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function GetTextOffsets(ALayout: TButtonLayout): TRect; virtual;
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public
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constructor Create; virtual;
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destructor Destroy; override;
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procedure Draw(ACanvas: TCanvas; const AClient: TRect; const AOffset: TPoint;
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const ACaption: TCaption; ALayout: TButtonLayout; AMargin, ASpacing: Integer;
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AState: TcxButtonState {$IFDEF VCL}; ABiDiFlags: LongInt;
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ANativeStyle: Boolean{$IFDEF DELPHI7}; AWordWrap: Boolean{$ENDIF}{$ENDIF});
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property Glyph: TBitmap read FOriginal write SetGlyph;
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property NumGlyphs: TNumGlyphs read FNumGlyphs write SetNumGlyphs;
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property OnChange: TNotifyEvent read FOnChange write FOnChange;
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end;
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TcxButtonGlyphClass = class of TcxButtonGlyph;
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{ TcxCustomButton }
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TcxButtonDropDownMenuPopupEvent = procedure(Sender: TObject;
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var APopupMenu: TPopupMenu; var AHandled: Boolean) of object;
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TcxCustomButton = class(TButton,
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{$IFNDEF DELPHI6}
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IUnknown,
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{$ENDIF}
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IcxMouseTrackingCaller,
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IcxLookAndFeelContainer)
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private
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FAutoSize: Boolean;
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FIsDown, FIsDefault: Boolean;
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FCanvas: TcxCanvas;
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FColors: TcxButtonColors;
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FControlCanvas: TControlCanvas;
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FLockDown: Boolean;
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{$IFNDEF VCL}
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FClosing: Boolean;
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{$ENDIF}
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{$IFDEF LINUX}
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FDblClick: Boolean;
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{$ENDIF}
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FDoPopup: Boolean;
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FDropDownMenu: TPopupMenu;
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FIsFocused: Boolean;
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FIsMouseClick: Boolean;
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FKind: TcxButtonKind;
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FLookAndFeel: TcxLookAndFeel;
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FPopupAlignment: TPopupAlignment;
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FPopupMenu: TComponent;
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FUseSystemPaint: Boolean; // deprecated
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// glyph support
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FGlyph: TcxButtonGlyph;
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FLayout: TButtonLayout;
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FModifiedGlyph: Boolean;
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FMargin: Integer;
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FMenuVisible: Boolean;
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FMouseInControl: Boolean;
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FSpacing: Integer;
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// events
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FOnDropDownMenuPopup: TcxButtonDropDownMenuPopupEvent;
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FOnGetDrawParams: TcxButtonGetDrawParamsEvent;
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// glyph support
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procedure SetGlyph(Value: TBitmap);
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function GetGlyph: TBitmap;
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function GetNumGlyphs: TNumGlyphs;
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procedure SetNumGlyphs(Value: TNumGlyphs);
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procedure GlyphChanged(Sender: TObject);
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procedure SetLayout(Value: TButtonLayout);
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procedure SetSpacing(Value: Integer);
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procedure SetMargin(Value: Integer);
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{$IFDEF VCL}
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procedure DrawItem(const DrawItemStruct: TDrawItemStruct);
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procedure WMCaptureChanged(var Message: TMessage); message WM_CAPTURECHANGED;
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procedure WMContextMenu(var Message: TWMContextMenu); message WM_CONTEXTMENU;
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procedure WMEraseBkgnd(var Message: TWMEraseBkgnd); message WM_ERASEBKGND;
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procedure WMLButtonDblClk(var Message: TWMLButtonDblClk); message WM_LBUTTONDBLCLK;
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procedure WMLButtonDown(var Message: TWMLButtonDown); message WM_LBUTTONDOWN;
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procedure WMLButtonUp(var Message: TWMLButtonUp); message WM_LBUTTONUP;
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procedure CMCloseupPopupMenu(var Message: TMessage); message CM_CLOSEUPPOPUPMENU;
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procedure CMDropDownPopupMenu(var Message: TMessage); message CM_DROPDOWNPOPUPMENU;
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procedure CMFontChanged(var Message: TMessage); message CM_FONTCHANGED;
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procedure CMEnabledChanged(var Message: TMessage); message CM_ENABLEDCHANGED;
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procedure CMMouseEnter(var Message: TMessage); message CM_MOUSEENTER;
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procedure CMMouseLeave(var Message: TMessage); message CM_MOUSELEAVE;
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procedure CMTextChanged(var Message: TMessage); message CM_TEXTCHANGED;
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procedure CNDrawItem(var Message: TWMDrawItem); message CN_DRAWITEM;
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procedure CNKeyDown(var Message: TWMKeyDown); message CN_KEYDOWN;
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procedure CNMeasureItem(var Message: TWMMeasureItem); message CN_MEASUREITEM;
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procedure CNSysKeyDown(var Message: TWMSysKeyDown); message CN_SYSKEYDOWN;
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{$ENDIF}
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procedure ExcludeDropDownButtonRect(var R: TRect);
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procedure DoDropDownMenu;
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function GetBorderRect(AState: TcxButtonState): TRect;
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function GetContentRect: TRect;
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function GetDropDownMenuAlignment(APopupPoint: TPoint;
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AEstimatedAlignment: TPopupAlignment): TPopupAlignment;
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function GetDropDownMenuPopupPoint(ADropDownMenu: TPopupMenu): TPoint;
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procedure InternalPaint;
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procedure InternalRecreateWindow;
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function IsColorsStored: Boolean;
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function IsHotTrack: Boolean;
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procedure LookAndFeelChanged(Sender: TcxLookAndFeel;
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AChangedValues: TcxLookAndFeelValues);
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procedure SetButtonAutoSize(Value: Boolean);
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procedure SetColors(const Value: TcxButtonColors);
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procedure SetKind(const Value: TcxButtonKind);
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procedure SetLookAndFeel(Value: TcxLookAndFeel);
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procedure SetPopupMenu(Value: TComponent);
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protected
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procedure ActionChange(Sender: TObject; CheckDefaults: Boolean); override;
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function CanResize(var NewWidth, NewHeight: Integer): Boolean; override;
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procedure KeyDown(var Key: Word; Shift: TShiftState); override;
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procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override;
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procedure Notification(AComponent: TComponent;
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Operation: TOperation); override;
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{$IFDEF VCL}
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procedure CreateHandle; override;
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procedure CreateParams(var Params: TCreateParams); override;
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procedure DestroyWindowHandle; override;
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function GetPalette: HPALETTE; override;
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procedure MouseMove(Shift: TShiftState; X, Y: Integer); override;
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procedure SetButtonStyle(ADefault: Boolean); override;
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{$ELSE}
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procedure EnabledChanged; override;
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procedure FontChanged; override;
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procedure InitWidget; override;
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procedure MouseEnter(AControl: TControl); override;
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procedure MouseLeave(AControl: TControl); override;
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function NeedKey(Key: Integer; Shift: TShiftState;
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const KeyText: WideString): Boolean; override;
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procedure Painting(Sender: QObjectH; EventRegion: QRegionH); override;
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function WidgetFlags: Integer; override;
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{$ENDIF}
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procedure DoContextPopup({$IFNDEF VCL}const {$ENDIF}MousePos: TPoint;
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var Handled: Boolean); {$IFNDEF DELPHI5}virtual{$ELSE}override{$ENDIF};
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function DoOnDropDownMenuPopup(var APopupMenu: TPopupMenu): Boolean; virtual;
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function DoShowPopupMenu(APopupMenu: TComponent;
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X, Y: Integer): Boolean; virtual;
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function GetGlyphClass: TcxButtonGlyphClass; virtual;
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function GetPainterClass: TcxCustomLookAndFeelPainterClass; virtual;
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function StandardButton: Boolean; virtual;
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procedure UpdateSize;
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//IcxMouseTrackingCaller
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procedure IcxMouseTrackingCaller.MouseLeave = ButtonMouseLeave;
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procedure ButtonMouseLeave;
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// IcxLookAndFeelContainer
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function GetLookAndFeel: TcxLookAndFeel;
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property AutoSize: Boolean read FAutoSize write SetButtonAutoSize default False;
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property Colors: TcxButtonColors read FColors write SetColors stored IsColorsStored;
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property DropDownMenu: TPopupMenu read FDropDownMenu write FDropDownMenu;
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property Glyph: TBitmap read GetGlyph write SetGlyph;
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property Kind: TcxButtonKind read FKind write SetKind default cxbkStandard;
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property Layout: TButtonLayout read FLayout write SetLayout default blGlyphLeft;
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property Margin: Integer read FMargin write SetMargin default -1;
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property NumGlyphs: TNumGlyphs read GetNumGlyphs write SetNumGlyphs default 1;
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property PopupAlignment: TPopupAlignment read FPopupAlignment
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write FPopupAlignment default paLeft;
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property Spacing: Integer read FSpacing write SetSpacing default 4;
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property UseSystemPaint: Boolean read FUseSystemPaint
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write FUseSystemPaint default False; // deprecated
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property OnDropDownMenuPopup: TcxButtonDropDownMenuPopupEvent
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read FOnDropDownMenuPopup write FOnDropDownMenuPopup;
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property OnGetDrawParams: TcxButtonGetDrawParamsEvent
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read FOnGetDrawParams write FOnGetDrawParams;
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public
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constructor Create(AOwner: TComponent); override;
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destructor Destroy; override;
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procedure Click; override;
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function GetOptimalSize: TSize; virtual;
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property LookAndFeel: TcxLookAndFeel read FLookAndFeel write SetLookAndFeel;
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published
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property PopupMenu: TComponent read FPopupMenu write SetPopupMenu;
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end;
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{ TcxButton }
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TcxButton = class(TcxCustomButton)
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published
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// property AutoSize;
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property Action;
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property Anchors;
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property BiDiMode;
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property Cancel;
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property Caption;
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property Colors;
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property Constraints;
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property Default;
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property DropDownMenu;
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property Enabled;
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property Glyph;
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property Kind;
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property Layout;
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property LookAndFeel;
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property Margin;
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property ModalResult;
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property NumGlyphs;
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property ParentBiDiMode;
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property ParentShowHint;
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property PopupAlignment;
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property ShowHint;
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property Spacing;
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property TabOrder;
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property TabStop;
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property UseSystemPaint; // deprecated
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property Visible;
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property OnDropDownMenuPopup;
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property OnEnter;
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property OnExit;
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property OnGetDrawParams;
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end;
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function GetButtonPainterClass(ALookAndFeel: TcxLookAndFeel): TcxCustomLookAndFeelPainterClass;
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implementation
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uses
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{$IFDEF VCL}
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dxUxTheme, CommCtrl, dxThemeConsts,
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{$ENDIF}
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cxClasses, cxGeometry, SysUtils, Consts, Dialogs, ActnList, ImgList;
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const
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EmptyPoint: TPoint = (X: 0; Y: 0);
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EmptyRect: TRect = (Left: 0; Top: 0; Right: 0; Bottom: 0);
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cxBtnStdVertTextOffsetCorrection = -1;
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TextRectCorrection: TRect = (Left: 1; Top: 0; Right: 2; Bottom: 0);
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function GetButtonPainterClass(ALookAndFeel: TcxLookAndFeel): TcxCustomLookAndFeelPainterClass;
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begin
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if ALookAndFeel.SkinPainter <> nil then
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Result := ALookAndFeel.SkinPainter
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else
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begin
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Result := ALookAndFeel.Painter;
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if Result.LookAndFeelStyle = lfsOffice11 then
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if AreVisualStylesAvailable(totButton) then
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Result := TcxWinXPLookAndFeelPainter
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else
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Result := TcxStandardLookAndFeelPainter;
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end;
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end;
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{ TcxButtonColors }
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constructor TcxButtonColors.Create(AOwner: TcxCustomButton);
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var
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AState: TcxButtonState;
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begin
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inherited Create;
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FButton := AOwner;
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for AState := cxbsDefault to cxbsDisabled do
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FColors[AState] := clDefault;
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end;
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function TcxButtonColors.GetBackgroundColor(AState: TcxButtonState): TColor;
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begin
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if AState in AssignedColors then
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Result := FColors[AState]
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else
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if AState = cxbsNormal then
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Result := FColors[cxbsDefault]
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else
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Result := FColors[cxbsNormal];
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end;
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function TcxButtonColors.GetColor(const Index: Integer): TColor;
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begin
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Result := FColors[TcxButtonState(Index)];
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end;
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function TcxButtonColors.IsStored(const Index: Integer): Boolean;
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begin
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Result := TcxButtonState(Index) in FAssignedColors;
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end;
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procedure TcxButtonColors.SetAssignedColors(
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Value: TcxButtonAssignedColors);
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var
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AState: TcxButtonState;
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begin
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if (FAssignedColors <> Value) and (csDesigning in FButton.ComponentState) then
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begin
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for AState := cxbsDefault to cxbsDisabled do
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if not (AState in Value) then
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FColors[AState] := clDefault
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else
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if FColors[AState] = clDefault then Exclude(Value, AState);
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FAssignedColors := Value;
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FButton.Invalidate;
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end;
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end;
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procedure TcxButtonColors.SetColor(const Index: Integer;
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const Value: TColor);
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begin
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if (Value = clNone) or (Value = clDefault) then
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begin
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FColors[TcxButtonState(Index)] := clDefault;
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Exclude(FAssignedColors, TcxButtonState(Index));
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FButton.Invalidate;
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end
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else if GetColor(Index) <> Value then
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begin
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FColors[TcxButtonState(Index)] := Value;
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Include(FAssignedColors, TcxButtonState(Index));
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FButton.Invalidate;
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end;
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end;
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procedure TcxButtonColors.Assign(Source: TPersistent);
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begin
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if Source is TcxButtonColors then
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with TcxButtonColors(Source) do
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begin
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Self.FColors := FColors;
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Self.FAssignedColors := FAssignedColors;
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Self.FButton.Invalidate;
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end
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else
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inherited Assign(Source);
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end;
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{ TcxGlyphList }
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|
|
|
constructor TcxGlyphList.CreateSize(AWidth, AHeight: Integer);
|
|
begin
|
|
inherited CreateSize(AWidth, AHeight);
|
|
FUsed := TBits.Create;
|
|
end;
|
|
|
|
destructor TcxGlyphList.Destroy;
|
|
begin
|
|
FUsed.Free;
|
|
inherited Destroy;
|
|
end;
|
|
|
|
function TcxGlyphList.AllocateIndex(ABitmap: TBitmap): Integer;
|
|
begin
|
|
Result := FUsed.OpenBit;
|
|
if Result >= FUsed.Size then
|
|
begin
|
|
Result := inherited Add(ABitmap, nil);
|
|
FUsed.Size := Result + 1;
|
|
end;
|
|
FUsed[Result] := True;
|
|
end;
|
|
|
|
function TcxGlyphList.AddMasked(AImage: TBitmap; AMaskColor: TColor): Integer;
|
|
begin
|
|
Result := AllocateIndex(AImage);
|
|
ReplaceMasked(Result, AImage, AMaskColor);
|
|
Inc(FCount);
|
|
end;
|
|
|
|
procedure TcxGlyphList.Delete(AIndex: Integer);
|
|
begin
|
|
if FUsed[AIndex] then
|
|
begin
|
|
Dec(FCount);
|
|
FUsed[AIndex] := False;
|
|
end;
|
|
end;
|
|
|
|
{$IFNDEF VCL}
|
|
|
|
{ TcxObjectEventFilter }
|
|
|
|
TcxObjectEventFilter = class
|
|
private
|
|
FObjectHook: QObject_hookH;
|
|
function ObjectHookProc(Sender: QObjectH; Event: QEventH): Boolean; cdecl;
|
|
public
|
|
constructor Create(AObject: QObjectH);
|
|
destructor Destroy; override;
|
|
end;
|
|
|
|
var
|
|
FObjectEventFilter: TcxObjectEventFilter;
|
|
FCurrentMenuButton: TcxCustomButton = nil;
|
|
FCurrentMenuHandle: QWidgetH = nil;
|
|
|
|
constructor TcxObjectEventFilter.Create(AObject: QObjectH);
|
|
var
|
|
Method: TMethod;
|
|
begin
|
|
inherited Create;
|
|
FObjectHook := QObject_hook_create(AObject);
|
|
TEventFilterMethod(Method) := ObjectHookProc;
|
|
Qt_hook_hook_events(FObjectHook, Method);
|
|
end;
|
|
|
|
destructor TcxObjectEventFilter.Destroy;
|
|
begin
|
|
QObject_hook_destroy(FObjectHook);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
function TcxObjectEventFilter.ObjectHookProc(Sender: QObjectH; Event: QEventH): Boolean; cdecl;
|
|
var
|
|
AMouseEvent: QMouseEventH;
|
|
PP: PPoint;
|
|
{$IFDEF LINUX}
|
|
AControl: TWidgetControl;
|
|
{$ENDIF}
|
|
begin
|
|
Result := False;
|
|
case QEvent_type(Event) of
|
|
{$IFDEF LINUX}
|
|
QEventType_MouseButtonDblClick:
|
|
begin
|
|
if FCurrentMenuButton <> nil then
|
|
begin
|
|
FCurrentMenuButton.FDblClick := True;
|
|
Result := True;
|
|
end
|
|
else
|
|
begin
|
|
AControl := FindControl(QWidgetH(Sender));
|
|
Result := AControl is TcxCustomButton;
|
|
if Result then
|
|
with TcxCustomButton(AControl) do
|
|
Result := (Kind <> cxbkStandard) and not (csDesigning in ComponentState);
|
|
end;
|
|
end;
|
|
{$ENDIF}
|
|
QEventType_MouseButtonPress:
|
|
begin
|
|
if not ((FCurrentMenuButton <> nil) and (QWidgetH(Sender) = FCurrentMenuHandle)) then
|
|
Exit;
|
|
{$IFDEF LINUX}
|
|
FCurrentMenuButton.FDblClick := False;
|
|
{$ENDIF}
|
|
AMouseEvent := QMouseEventH(Event);
|
|
PP := QMouseEvent_globalPos(AMouseEvent);
|
|
FCurrentMenuButton.FClosing :=
|
|
QApplication_widgetAt(PP, True) = FCurrentMenuButton.Handle;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
{$ENDIF}
|
|
|
|
{$IFDEF VCL}
|
|
type
|
|
{ TcxGlyphCache }
|
|
|
|
TcxGlyphCache = class
|
|
private
|
|
FGlyphLists: TList;
|
|
public
|
|
constructor Create;
|
|
destructor Destroy; override;
|
|
function GetList(AWidth, AHeight: Integer): TcxGlyphList;
|
|
procedure ReturnList(AList: TcxGlyphList);
|
|
function Empty: Boolean;
|
|
end;
|
|
|
|
{ TcxGlyphCache }
|
|
|
|
constructor TcxGlyphCache.Create;
|
|
begin
|
|
inherited Create;
|
|
FGlyphLists := TList.Create;
|
|
end;
|
|
|
|
destructor TcxGlyphCache.Destroy;
|
|
begin
|
|
FGlyphLists.Free;
|
|
inherited Destroy;
|
|
end;
|
|
|
|
function TcxGlyphCache.GetList(AWidth, AHeight: Integer): TcxGlyphList;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := FGlyphLists.Count - 1 downto 0 do
|
|
begin
|
|
Result := TcxGlyphList(FGlyphLists[I]);
|
|
with Result do
|
|
if (AWidth = Width) and (AHeight = Height) then Exit;
|
|
end;
|
|
Result := TcxGlyphList.CreateSize(AWidth, AHeight);
|
|
FGlyphLists.Add(Result);
|
|
end;
|
|
|
|
procedure TcxGlyphCache.ReturnList(AList: TcxGlyphList);
|
|
begin
|
|
if AList = nil then Exit;
|
|
if AList.Count = 0 then
|
|
begin
|
|
FGlyphLists.Remove(AList);
|
|
AList.Free;
|
|
end;
|
|
end;
|
|
|
|
function TcxGlyphCache.Empty: Boolean;
|
|
begin
|
|
Result := FGlyphLists.Count = 0;
|
|
end;
|
|
|
|
var
|
|
GlyphCache: TcxGlyphCache = nil;
|
|
{$ENDIF}
|
|
|
|
{ TcxButtonGlyph }
|
|
|
|
constructor TcxButtonGlyph.Create;
|
|
var
|
|
I: TButtonState;
|
|
begin
|
|
inherited Create;
|
|
FOriginal := TBitmap.Create;
|
|
FOriginal.OnChange := GlyphChanged;
|
|
FTransparentColor := clOlive;
|
|
FNumGlyphs := 1;
|
|
for I := Low(I) to High(I) do
|
|
FIndexs[I] := -1;
|
|
{$IFDEF VCL}
|
|
if GlyphCache = nil then GlyphCache := TcxGlyphCache.Create;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
destructor TcxButtonGlyph.Destroy;
|
|
begin
|
|
FOriginal.Free;
|
|
Invalidate;
|
|
{$IFDEF VCL}
|
|
if Assigned(GlyphCache) and GlyphCache.Empty then
|
|
begin
|
|
GlyphCache.Free;
|
|
GlyphCache := nil;
|
|
end;
|
|
{$ENDIF}
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TcxButtonGlyph.Invalidate;
|
|
var
|
|
I: TButtonState;
|
|
begin
|
|
for I := Low(I) to High(I) do
|
|
begin
|
|
if FIndexs[I] <> -1 then FGlyphList.Delete(FIndexs[I]);
|
|
FIndexs[I] := -1;
|
|
end;
|
|
{$IFDEF VCL}
|
|
GlyphCache.ReturnList(FGlyphList);
|
|
FGlyphList := nil;
|
|
{$ELSE}
|
|
FreeAndNil(FGlyphList);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
procedure TcxButtonGlyph.GlyphChanged(Sender: TObject);
|
|
begin
|
|
if Sender = FOriginal then
|
|
begin
|
|
FTransparentColor := FOriginal.TransparentColor;
|
|
Invalidate;
|
|
if Assigned(FOnChange) then FOnChange(Self);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxButtonGlyph.SetGlyph(Value: TBitmap);
|
|
var
|
|
Glyphs: Integer;
|
|
begin
|
|
Invalidate;
|
|
FOriginal.Assign(Value);
|
|
if Value = nil then
|
|
begin
|
|
FOriginal.Width := 0;
|
|
FOriginal.Height := 0;
|
|
end
|
|
else
|
|
if Value.Height > 0 then
|
|
begin
|
|
FTransparentColor := Value.TransparentColor;
|
|
if Value.Width mod Value.Height = 0 then
|
|
begin
|
|
Glyphs := Value.Width div Value.Height;
|
|
if Glyphs > 4 then Glyphs := 1;
|
|
SetNumGlyphs(Glyphs);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxButtonGlyph.SetNumGlyphs(Value: TNumGlyphs);
|
|
begin
|
|
if (Value <> FNumGlyphs) and (Value > 0) then
|
|
begin
|
|
Invalidate;
|
|
FNumGlyphs := Value;
|
|
GlyphChanged(Glyph);
|
|
end;
|
|
end;
|
|
|
|
function TcxButtonGlyph.CreateButtonGlyph(AState: TcxButtonState): Integer;
|
|
|
|
function GetStandardButtonState(AState: TcxButtonState): TButtonState;
|
|
const
|
|
States: array[TcxButtonState] of TButtonState =
|
|
//cxbsDefault, cxbsNormal, cxbsHot, cxbsPressed, cxbsDisabled;
|
|
(bsUp, bsUp, bsUp, bsDown, bsDisabled);
|
|
begin
|
|
Result := States[AState];
|
|
if (Result = bsDown) and (NumGlyphs < 3) then
|
|
Result := bsUp;
|
|
end;
|
|
|
|
function InternalCreateButtonGlyph(AStandardButtonState: TButtonState): Integer;
|
|
|
|
function GetGlyphList(AWidth, AHeight: Integer): TcxGlyphList;
|
|
begin
|
|
if FGlyphList = nil then
|
|
begin
|
|
if GlyphCache = nil then
|
|
GlyphCache := TcxGlyphCache.Create;
|
|
FGlyphList := GlyphCache.GetList(AWidth, AHeight);
|
|
end;
|
|
Result := FGlyphList;
|
|
end;
|
|
|
|
var
|
|
ATempImage: TBitmap;
|
|
AWidth, AHeight: Integer;
|
|
ADestRect, ASrcRect: TRect;
|
|
AOffset: Integer;
|
|
AGlyphList: TcxGlyphList;
|
|
begin
|
|
FOriginal.Handle; //HandleNeeded
|
|
AWidth := FOriginal.Width div FNumGlyphs;
|
|
AHeight := FOriginal.Height;
|
|
ADestRect := Rect(0, 0, AWidth, AHeight);
|
|
AOffset := Ord(AStandardButtonState);
|
|
if AOffset >= NumGlyphs then
|
|
AOffset := 0;
|
|
ASrcRect := cxRectOffset(ADestRect, AOffset * AWidth, 0);
|
|
|
|
AGlyphList := GetGlyphList(AWidth, AHeight);
|
|
ATempImage := cxCreateBitmap(AWidth, AHeight, pfDevice);
|
|
try
|
|
ATempImage.Canvas.Brush.Color := FTransparentColor;
|
|
ATempImage.Palette := CopyPalette(FOriginal.Palette);
|
|
|
|
if (AStandardButtonState = bsDisabled) and (NumGlyphs = 1) then
|
|
begin
|
|
ATempImage.Canvas.FillRect(ADestRect);
|
|
ADestRect := Rect(-AOffset * AWidth, 0, AWidth, AHeight);
|
|
cxDrawImage(ATempImage.Canvas.Handle, ADestRect, ADestRect, FOriginal, nil, -1, idmDisabled, False, 0, FTransparentColor, False);
|
|
end
|
|
else
|
|
ATempImage.Canvas.CopyRect(ADestRect, FOriginal.Canvas, ASrcRect);
|
|
|
|
if FOriginal.TransparentMode = tmFixed then
|
|
FIndexs[AStandardButtonState] := AGlyphList.AddMasked(ATempImage, FTransparentColor)
|
|
else
|
|
FIndexs[AStandardButtonState] := AGlyphList.AddMasked(ATempImage, clDefault);
|
|
finally
|
|
ATempImage.Free;
|
|
end;
|
|
Result := FIndexs[AStandardButtonState];
|
|
FOriginal.Dormant;
|
|
end;
|
|
|
|
function GetGlyphIndex(AStandardButtonState: TButtonState): Integer;
|
|
begin
|
|
Result := FIndexs[AStandardButtonState];
|
|
if (Result = -1) and ((FOriginal.Width or FOriginal.Height) <> 0) then
|
|
Result := InternalCreateButtonGlyph(AStandardButtonState);
|
|
end;
|
|
|
|
begin
|
|
Result := GetGlyphIndex(GetStandardButtonState(AState));
|
|
end;
|
|
|
|
procedure TcxButtonGlyph.DrawButtonGlyph(ACanvas: TCanvas; const AGlyphPos: TPoint;
|
|
AState: TcxButtonState);
|
|
var
|
|
AIndex: Integer;
|
|
begin
|
|
if (FOriginal = nil) or (FOriginal.Width = 0) or (FOriginal.Height = 0) then
|
|
Exit;
|
|
AIndex := CreateButtonGlyph(AState);
|
|
{$IFDEF VCL}
|
|
ImageList_DrawEx(FGlyphList.Handle, AIndex, ACanvas.Handle,
|
|
AGlyphPos.X, AGlyphPos.Y, 0, 0, clNone, clNone, ILD_Transparent);
|
|
{$ELSE}
|
|
FGlyphList.Draw(ACanvas, AGlyphPos.X, AGlyphPos.Y, AIndex, itImage, True);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
procedure TcxButtonGlyph.DrawButtonText(ACanvas: TCanvas; const ACaption: TCaption;
|
|
ATextBounds: TRect; AState: TcxButtonState {$IFDEF VCL}; ABiDiFlags: LongInt;
|
|
ANativeStyle: Boolean{$IFDEF DELPHI7}; AWordWrap: Boolean{$ENDIF}{$ENDIF});
|
|
|
|
{$IFDEF VCL}
|
|
procedure InternalDrawButtonText;
|
|
var
|
|
ADrawTextFlags: Integer;
|
|
begin
|
|
ADrawTextFlags := DT_CENTER or DT_VCENTER or ABiDiFlags;
|
|
if CanWordWrapText{$IFDEF DELPHI7}(AWordWrap){$ENDIF} then
|
|
ADrawTextFlags := ADrawTextFlags or DT_WORDBREAK;
|
|
DrawText(ACanvas.Handle, PChar(ACaption),
|
|
Length(ACaption), ATextBounds, ADrawTextFlags);
|
|
end;
|
|
{$ELSE}
|
|
procedure InternalDrawButtonText;
|
|
begin
|
|
ACanvas.TextRect(ATextBounds, ATextBounds.Left, ATextBounds.Top, ACaption,
|
|
Integer(AlignmentFlags_ShowPrefix));
|
|
end;
|
|
{$ENDIF}
|
|
|
|
var
|
|
ABrushStyle: TBrushStyle;
|
|
AFontColor: TColor;
|
|
begin
|
|
if Length(ACaption) = 0 then Exit;
|
|
ABrushStyle := ACanvas.Brush.Style;
|
|
try
|
|
ACanvas.Brush.Style := bsClear;
|
|
if AState = cxbsDisabled then
|
|
begin
|
|
OffsetRect(ATextBounds, 1, 1);
|
|
AFontColor := ACanvas.Font.Color;
|
|
ACanvas.Font.Color := clBtnHighlight;
|
|
InternalDrawButtonText;
|
|
OffsetRect(ATextBounds, -1, -1);
|
|
ACanvas.Font.Color := AFontColor;
|
|
end;
|
|
InternalDrawButtonText;
|
|
finally
|
|
ACanvas.Brush.Style := ABrushStyle;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxButtonGlyph.CalcButtonLayout(ACanvas: TCanvas; const AClient: TRect;
|
|
const AOffset: TPoint; const ACaption: TCaption; ALayout: TButtonLayout;
|
|
AMargin, ASpacing: Integer; var GlyphPos: TPoint; var TextBounds: TRect
|
|
{$IFDEF VCL}; ABiDiFlags: LongInt{$IFDEF DELPHI7}; AWordWrap: Boolean{$ENDIF}{$ENDIF});
|
|
|
|
procedure CheckLayout;
|
|
begin
|
|
{$IFDEF VCL}
|
|
if ABiDiFlags and DT_RIGHT = DT_RIGHT then
|
|
begin
|
|
if ALayout = blGlyphLeft then
|
|
ALayout := blGlyphRight
|
|
else
|
|
if ALayout = blGlyphRight then
|
|
ALayout := blGlyphLeft;
|
|
end;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
function GetCaptionSize: TPoint;
|
|
var
|
|
ADrawTextFlags: Integer;
|
|
ATextOffsets: TRect;
|
|
begin
|
|
if Length(ACaption) = 0 then
|
|
begin
|
|
TextBounds := EmptyRect;
|
|
Result := EmptyPoint;
|
|
end
|
|
else
|
|
begin
|
|
TextBounds := Rect(0, 0, AClient.Right - AClient.Left, 0);
|
|
ATextOffsets := GetTextOffsets(ALayout);
|
|
ExtendRect(TextBounds, ATextOffsets);
|
|
ADrawTextFlags := DT_CALCRECT or ABiDiFlags;
|
|
if CanWordWrapText{$IFDEF DELPHI7}(AWordWrap){$ENDIF} then
|
|
ADrawTextFlags := ADrawTextFlags or DT_WORDBREAK;
|
|
DrawText(ACanvas.Handle, PChar(ACaption),
|
|
Length(ACaption), TextBounds, ADrawTextFlags);
|
|
with TextBounds do
|
|
Result := Point(Right - Left, Bottom - Top);
|
|
Inc(Result.X, ATextOffsets.Left + ATextOffsets.Right);
|
|
Inc(Result.Y, ATextOffsets.Top + ATextOffsets.Bottom);
|
|
end;
|
|
end;
|
|
|
|
var
|
|
ATextPos: TPoint;
|
|
AClientSize, AGlyphSize, ATextSize: TPoint;
|
|
ATotalSize: TPoint;
|
|
begin
|
|
CheckLayout;
|
|
ATextSize := GetCaptionSize;
|
|
with AClient do
|
|
AClientSize := Point(Right - Left, Bottom - Top);
|
|
|
|
(* if FOriginal.Empty then
|
|
begin
|
|
GlyphPos := EmptyPoint;
|
|
ATextPos.X := (AClientSize.X - ATextSize.X) div 2;
|
|
ATextPos.Y := (AClientSize.Y - ATextSize.Y - 1) div 2;
|
|
OffsetRect(TextBounds, ATextPos.X + AOffset.X, ATextPos.Y + AOffset.Y);
|
|
Exit;
|
|
end;*)
|
|
|
|
if FOriginal <> nil then
|
|
begin
|
|
AGlyphSize := Point(FOriginal.Width div FNumGlyphs, FOriginal.Height);
|
|
if ALayout in [blGlyphLeft, blGlyphRight] then
|
|
begin
|
|
GlyphPos.Y := (AClientSize.Y - AGlyphSize.Y) div 2;
|
|
ATextPos.Y := (AClientSize.Y - ATextSize.Y +
|
|
cxBtnStdVertTextOffsetCorrection) div 2;
|
|
end
|
|
else
|
|
begin
|
|
GlyphPos.X := (AClientSize.X - AGlyphSize.X) div 2;
|
|
ATextPos.X := (AClientSize.X - ATextSize.X) div 2;
|
|
end;
|
|
end
|
|
else
|
|
AGlyphSize := EmptyPoint;
|
|
|
|
if (ATextSize.X = 0) or (AGlyphSize.X = 0) then ASpacing := 0;
|
|
|
|
if AMargin = -1 then
|
|
begin
|
|
if ASpacing = -1 then
|
|
begin
|
|
ATotalSize := Point(AGlyphSize.X + ATextSize.X, AGlyphSize.Y + ATextSize.Y);
|
|
if ALayout in [blGlyphLeft, blGlyphRight] then
|
|
AMargin := (AClientSize.X - ATotalSize.X) div 3
|
|
else
|
|
AMargin := (AClientSize.Y - ATotalSize.Y) div 3;
|
|
ASpacing := AMargin;
|
|
end
|
|
else
|
|
begin
|
|
ATotalSize := Point(AGlyphSize.X + ASpacing + ATextSize.X, AGlyphSize.Y +
|
|
ASpacing + ATextSize.Y);
|
|
if ALayout in [blGlyphLeft, blGlyphRight] then
|
|
AMargin := (AClientSize.X - ATotalSize.X) div 2
|
|
else
|
|
AMargin := (AClientSize.Y - ATotalSize.Y) div 2;
|
|
end;
|
|
end
|
|
else
|
|
begin
|
|
if ASpacing = -1 then
|
|
begin
|
|
ATotalSize := Point(AClientSize.X - (AMargin + AGlyphSize.X),
|
|
AClientSize.Y - (AMargin + AGlyphSize.Y));
|
|
if ALayout in [blGlyphLeft, blGlyphRight] then
|
|
ASpacing := (ATotalSize.X - ATextSize.X) div 2
|
|
else
|
|
ASpacing := (ATotalSize.Y - ATextSize.Y) div 2;
|
|
end;
|
|
end;
|
|
case ALayout of
|
|
blGlyphLeft:
|
|
begin
|
|
GlyphPos.X := AMargin;
|
|
ATextPos.X := GlyphPos.X + AGlyphSize.X + ASpacing;
|
|
end;
|
|
blGlyphRight:
|
|
begin
|
|
GlyphPos.X := AClientSize.X - AMargin - AGlyphSize.X;
|
|
ATextPos.X := GlyphPos.X - ASpacing - ATextSize.X;
|
|
end;
|
|
blGlyphTop:
|
|
begin
|
|
GlyphPos.Y := AMargin;
|
|
ATextPos.Y := GlyphPos.Y + AGlyphSize.Y + ASpacing;
|
|
end;
|
|
blGlyphBottom:
|
|
begin
|
|
GlyphPos.Y := AClientSize.Y - AMargin - AGlyphSize.Y;
|
|
ATextPos.Y := GlyphPos.Y - ASpacing - ATextSize.Y;
|
|
end;
|
|
end;
|
|
with GlyphPos do
|
|
begin
|
|
Inc(X, AClient.Left + AOffset.X);
|
|
Inc(Y, AClient.Top + AOffset.Y);
|
|
end;
|
|
OffsetRect(TextBounds, AClient.Left + ATextPos.X + AOffset.X, AClient.Top + ATextPos.Y + AOffset.X);
|
|
end;
|
|
|
|
procedure TcxButtonGlyph.Draw(ACanvas: TCanvas; const AClient: TRect;
|
|
const AOffset: TPoint; const ACaption: TCaption; ALayout: TButtonLayout;
|
|
AMargin, ASpacing: Integer; AState: TcxButtonState
|
|
{$IFDEF VCL}; ABiDiFlags: LongInt; ANativeStyle: Boolean{$IFDEF DELPHI7}; AWordWrap: Boolean{$ENDIF}{$ENDIF});
|
|
var
|
|
AGlyphPos: TPoint;
|
|
ATextRect: TRect;
|
|
begin
|
|
CalcButtonLayout(ACanvas, AClient, AOffset, ACaption, ALayout, AMargin,
|
|
ASpacing, AGlyphPos, ATextRect{$IFDEF VCL}, ABiDiFlags{$IFDEF DELPHI7}, AWordWrap{$ENDIF}{$ENDIF});
|
|
DrawButtonGlyph(ACanvas, AGlyphPos, AState);
|
|
DrawButtonText(ACanvas, ACaption, ATextRect, AState{$IFDEF VCL}, ABiDiFlags,
|
|
ANativeStyle{$IFDEF DELPHI7}, AWordWrap{$ENDIF}{$ENDIF});
|
|
end;
|
|
|
|
function TcxButtonGlyph.CanWordWrapText{$IFDEF DELPHI7}(AWordWrap: Boolean){$ENDIF}: Boolean;
|
|
begin
|
|
{$IFDEF DELPHI7}
|
|
Result := AWordWrap and ((FOriginal = nil) or (FOriginal.Width = 0) or (FOriginal.Height = 0));
|
|
{$ELSE}
|
|
Result := False;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
function TcxButtonGlyph.GetTextOffsets(ALayout: TButtonLayout): TRect;
|
|
begin
|
|
if (FOriginal.Width > 0) and (FOriginal.Height > 0) then
|
|
Result := cxEmptyRect
|
|
else
|
|
Result := TextRectCorrection;
|
|
end;
|
|
|
|
{ TcxCustomButton }
|
|
|
|
constructor TcxCustomButton.Create(AOwner: TComponent);
|
|
begin
|
|
inherited Create(AOwner);
|
|
FGlyph := GetGlyphClass.Create;
|
|
FGlyph.OnChange := GlyphChanged;
|
|
FColors := TcxButtonColors.Create(Self);
|
|
FControlCanvas := TControlCanvas.Create;
|
|
FControlCanvas.Control := Self;
|
|
FCanvas := TcxCanvas.Create(TCanvas(FControlCanvas));
|
|
FLookAndFeel := TcxLookAndFeel.Create(Self);
|
|
FLookAndFeel.OnChanged := LookAndFeelChanged;
|
|
FDoPopup := True;
|
|
FKind := cxbkStandard;
|
|
FLayout := blGlyphLeft;
|
|
FPopupAlignment := paLeft;
|
|
FSpacing := 4;
|
|
FMargin := -1;
|
|
{$IFDEF VCL}
|
|
DoubleBuffered := True;
|
|
ControlStyle := ControlStyle + [csReflector, csOpaque];
|
|
{$ELSE}
|
|
ControlStyle := ControlStyle + [csOpaque];
|
|
{$ENDIF}
|
|
end;
|
|
|
|
destructor TcxCustomButton.Destroy;
|
|
begin
|
|
{$IFDEF VCL}
|
|
EndMouseTracking(Self);
|
|
{$ENDIF}
|
|
FreeAndNil(FLookAndFeel);
|
|
FreeAndNil(FColors);
|
|
inherited Destroy;
|
|
FGlyph.Free;
|
|
FreeAndNil(FCanvas);
|
|
FreeAndNil(FControlCanvas);
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetGlyph(Value: TBitmap);
|
|
begin
|
|
FGlyph.Glyph := Value as TBitmap;
|
|
FModifiedGlyph := True;
|
|
Invalidate;
|
|
end;
|
|
|
|
function TcxCustomButton.GetGlyph: TBitmap;
|
|
begin
|
|
Result := FGlyph.Glyph;
|
|
end;
|
|
|
|
procedure TcxCustomButton.GlyphChanged(Sender: TObject);
|
|
begin
|
|
Invalidate;
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetLayout(Value: TButtonLayout);
|
|
begin
|
|
if FLayout <> Value then
|
|
begin
|
|
FLayout := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomButton.GetNumGlyphs: TNumGlyphs;
|
|
begin
|
|
Result := FGlyph.NumGlyphs;
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetNumGlyphs(Value: TNumGlyphs);
|
|
begin
|
|
if Value < 0 then Value := 1
|
|
else if Value > 4 then Value := 4;
|
|
if Value <> FGlyph.NumGlyphs then
|
|
begin
|
|
FGlyph.NumGlyphs := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetSpacing(Value: Integer);
|
|
begin
|
|
if FSpacing <> Value then
|
|
begin
|
|
FSpacing := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetMargin(Value: Integer);
|
|
begin
|
|
if (Value <> FMargin) and (Value >= - 1) then
|
|
begin
|
|
FMargin := Value;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.DoContextPopup({$IFNDEF VCL}const {$ENDIF}MousePos: TPoint;
|
|
var Handled: Boolean);
|
|
var
|
|
P: TPoint;
|
|
begin
|
|
{$IFDEF DELPHI5}
|
|
inherited DoContextPopup(MousePos, Handled);
|
|
{$ENDIF}
|
|
if not Handled then
|
|
begin
|
|
if (MousePos.X = -1) and (MousePos.Y = -1) then
|
|
P := ClientToScreen(Point(0, 0))
|
|
else
|
|
P := ClientToScreen(MousePos);
|
|
Handled := DoShowPopupMenu(PopupMenu, P.X, P.Y);
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomButton.DoOnDropDownMenuPopup(var APopupMenu: TPopupMenu): Boolean;
|
|
begin
|
|
Result := False;
|
|
if Assigned(FOnDropDownMenuPopup) then
|
|
FOnDropDownMenuPopup(Self, APopupMenu, Result);
|
|
end;
|
|
|
|
function TcxCustomButton.DoShowPopupMenu(APopupMenu: TComponent;
|
|
X, Y: Integer): Boolean;
|
|
begin
|
|
Result := ShowPopupMenu(Self, APopupMenu, X, Y);
|
|
end;
|
|
|
|
function TcxCustomButton.GetGlyphClass: TcxButtonGlyphClass;
|
|
begin
|
|
Result := TcxButtonGlyph;
|
|
end;
|
|
|
|
function TcxCustomButton.GetPainterClass: TcxCustomLookAndFeelPainterClass;
|
|
begin
|
|
Result := GetButtonPainterClass(LookAndFeel);
|
|
end;
|
|
|
|
function TcxCustomButton.StandardButton: Boolean;
|
|
begin
|
|
Result := False;
|
|
end;
|
|
|
|
procedure TcxCustomButton.UpdateSize;
|
|
var
|
|
ASize: TSize;
|
|
begin
|
|
if AutoSize then
|
|
begin
|
|
if csLoading in ComponentState then
|
|
ASize := GetOptimalSize
|
|
else
|
|
ASize := Size(0, 0);
|
|
SetBounds(Self.Left, Self.Top, ASize.cx, ASize.cy);
|
|
end;
|
|
end;
|
|
|
|
//IcxMouseTrackingCaller
|
|
procedure TcxCustomButton.ButtonMouseLeave;
|
|
begin
|
|
{$IFDEF VCL}
|
|
Perform(CM_MOUSELEAVE, 0, 0);
|
|
{$ELSE}
|
|
MouseLeave(Self);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
// IcxLookAndFeelContainer
|
|
function TcxCustomButton.GetLookAndFeel: TcxLookAndFeel;
|
|
begin
|
|
Result := LookAndFeel;
|
|
end;
|
|
|
|
procedure TcxCustomButton.Click;
|
|
begin
|
|
if FKind = cxbkStandard then
|
|
inherited Click
|
|
else
|
|
begin
|
|
{$IFDEF LINUX}
|
|
if FDblClick then
|
|
begin
|
|
FDblClick := False;
|
|
Exit;
|
|
end;
|
|
{$ENDIF}
|
|
if (FKind = cxbkDropDown) and not FMenuVisible then
|
|
begin
|
|
if not FIsMouseClick then DoDropDownMenu;
|
|
FIsMouseClick := False;
|
|
end
|
|
else
|
|
if FIsMouseClick then FIsMouseClick := False else inherited Click;
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomButton.GetOptimalSize: TSize;
|
|
var
|
|
ACanvas: TcxScreenCanvas;
|
|
ACaption: TCaption;
|
|
begin
|
|
ACanvas := TcxScreenCanvas.Create;
|
|
try
|
|
ACanvas.Font := Font;
|
|
ACaption := RemoveAccelChars(Caption);
|
|
if ACaption = '' then
|
|
ACaption := ' ';
|
|
Result.cx := ACanvas.TextWidth(ACaption) + ACanvas.TextWidth('R') * 3;
|
|
Result.cy := MulDiv(ACanvas.TextHeight('Wg'), 14, 8);
|
|
finally
|
|
ACanvas.Free;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.LookAndFeelChanged(Sender: TcxLookAndFeel;
|
|
AChangedValues: TcxLookAndFeelValues);
|
|
begin
|
|
if UseSystemPaint then
|
|
InternalRecreateWindow
|
|
else
|
|
Invalidate;
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetButtonAutoSize(Value: Boolean);
|
|
begin
|
|
if Value <> FAutoSize then
|
|
begin
|
|
FAutoSize := Value;
|
|
UpdateSize;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetColors(const Value: TcxButtonColors);
|
|
begin
|
|
FColors.Assign(Value);
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetKind(const Value: TcxButtonKind);
|
|
begin
|
|
if FKind <> Value then
|
|
begin
|
|
FKind := Value;
|
|
InternalRecreateWindow;
|
|
end
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetLookAndFeel(Value: TcxLookAndFeel);
|
|
begin
|
|
FLookAndFeel.Assign(Value);
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetPopupMenu(Value: TComponent);
|
|
var
|
|
AIPopupMenu: IcxPopupMenu;
|
|
begin
|
|
if (Value <> nil) and not((Value is TPopupMenu) or
|
|
{$IFNDEF DELPHI6}
|
|
Value.GetInterface(IcxPopupMenu, AIPopupMenu)) then
|
|
{$ELSE}
|
|
Supports(Value, IcxPopupMenu, AIPopupMenu)) then
|
|
{$ENDIF}
|
|
Value := nil;
|
|
if FPopupMenu <> Value then
|
|
begin
|
|
{$IFDEF DELPHI5}
|
|
if FPopupMenu <> nil then
|
|
FPopupMenu.RemoveFreeNotification(Self);
|
|
{$ENDIF}
|
|
FPopupMenu := Value;
|
|
if FPopupMenu <> nil then
|
|
FPopupMenu.FreeNotification(Self);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.ExcludeDropDownButtonRect(var R: TRect);
|
|
begin
|
|
if Kind = cxbkDropDownButton then
|
|
R.Right := R.Right - cxDropDownButtonWidth + 2;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CMTextChanged(var Message: TMessage);
|
|
begin
|
|
inherited;
|
|
UpdateSize;
|
|
end;
|
|
|
|
procedure TcxCustomButton.DoDropDownMenu;
|
|
begin
|
|
FLockDown := True;
|
|
PostMessage(Handle, CM_DROPDOWNPOPUPMENU, 0, 0);
|
|
end;
|
|
|
|
function TcxCustomButton.GetBorderRect(AState: TcxButtonState): TRect;
|
|
var
|
|
ABorderSize: Integer;
|
|
begin
|
|
Result := ClientRect;
|
|
ABorderSize := GetPainterClass.ButtonBorderSize(AState);
|
|
InflateRect(Result, -ABorderSize, -ABorderSize);
|
|
ExcludeDropDownButtonRect(Result);
|
|
end;
|
|
|
|
function TcxCustomButton.GetContentRect: TRect;
|
|
begin
|
|
Result := GetBorderRect(cxbsDefault)
|
|
end;
|
|
|
|
function TcxCustomButton.GetDropDownMenuAlignment(APopupPoint: TPoint;
|
|
AEstimatedAlignment: TPopupAlignment): TPopupAlignment;
|
|
var
|
|
ADesktopWorkArea: TRect;
|
|
begin
|
|
Result := AEstimatedAlignment;
|
|
ADesktopWorkArea := GetDesktopWorkArea(APopupPoint);
|
|
if APopupPoint.X <= ADesktopWorkArea.Left then
|
|
Result := paRight
|
|
else
|
|
if APopupPoint.X >= ADesktopWorkArea.Right then
|
|
Result := paLeft;
|
|
end;
|
|
|
|
function TcxCustomButton.GetDropDownMenuPopupPoint(ADropDownMenu: TPopupMenu): TPoint;
|
|
var
|
|
H: Integer;
|
|
begin
|
|
Result := Point(0, Height);
|
|
case FPopupAlignment of
|
|
paLeft:
|
|
Result.X := 0;
|
|
paRight:
|
|
Result.X := Width;
|
|
paCenter:
|
|
Result.X := Width shr 1;
|
|
end;
|
|
Result := ClientToScreen(Result);
|
|
H := GetPopupMenuHeight(ADropDownMenu);
|
|
if Result.Y + H > GetDesktopWorkArea(Result).Bottom then
|
|
Dec(Result.Y, Height + H + 2);
|
|
end;
|
|
|
|
procedure TcxCustomButton.InternalPaint;
|
|
var
|
|
APrevClipRgn: TcxRegion;
|
|
AColor: TColor;
|
|
AOffset: TPoint;
|
|
AShift: Integer;
|
|
AState: TcxButtonState;
|
|
ATempRect, R: TRect;
|
|
ATheme: TdxTheme;
|
|
begin
|
|
if StandardButton then
|
|
Exit;
|
|
|
|
R := ClientRect;
|
|
if GetPainterClass = TcxWinXPLookAndFeelPainter then
|
|
begin
|
|
ATheme := OpenTheme(totButton);
|
|
if (ATheme <> TC_NONE) and IsThemeBackgroundPartiallyTransparent(ATheme, BP_PUSHBUTTON, PBS_NORMAL) then
|
|
cxDrawThemeParentBackground(Self, FCanvas, R);
|
|
end
|
|
else
|
|
if LookAndFeel.SkinPainter <> nil then
|
|
cxDrawTransparentControlBackground(Self, FCanvas, R);
|
|
|
|
case FKind of
|
|
cxbkDropDown:
|
|
FIsDown := FMenuVisible;
|
|
cxbkDropDownButton:
|
|
begin
|
|
ATempRect := Rect(R.Right - cxDropDownButtonWidth, R.Top, R.Right, R.Bottom);
|
|
ExcludeDropDownButtonRect(R);
|
|
if FLockDown then
|
|
FIsDown := False;
|
|
end;
|
|
end;
|
|
|
|
if not Enabled then AState := cxbsDisabled
|
|
else if FIsDown or FMenuVisible then AState := cxbsPressed
|
|
else if FMouseInControl then AState := cxbsHot
|
|
else if FIsDefault or FIsFocused then AState := cxbsDefault
|
|
else AState := cxbsNormal;
|
|
|
|
FCanvas.Font.Assign(Font);
|
|
AColor := FColors.GetBackgroundColor(AState);
|
|
FCanvas.Font.Color := GetPainterClass.ButtonSymbolColor(AState, FCanvas.Font.Color);
|
|
if Assigned(FOnGetDrawParams) then
|
|
FOnGetDrawParams(Self, AState, AColor, FCanvas.Font);
|
|
|
|
GetPainterClass.DrawButton(FCanvas, R, '', AState, True, AColor, FCanvas.Font.Color);
|
|
|
|
AShift := GetPainterClass.ButtonTextShift;
|
|
if (AState = cxbsPressed) and (AShift <> 0) then
|
|
AOffset := Point(AShift, AShift)
|
|
else
|
|
AOffset := EmptyPoint;
|
|
|
|
APrevClipRgn := FCanvas.GetClipRegion;
|
|
try
|
|
FCanvas.SetClipRegion(TcxRegion.Create(GetBorderRect(AState)), roSet);
|
|
FGlyph.Draw(TCanvas(FControlCanvas), GetContentRect, AOffset, Caption, FLayout,
|
|
FMargin, FSpacing, AState, DrawTextBiDiModeFlags(0),
|
|
GetPainterClass = TcxWinXPLookAndFeelPainter{$IFDEF DELPHI7}, WordWrap{$ENDIF});
|
|
finally
|
|
FCanvas.SetClipRegion(APrevClipRgn, roSet);
|
|
end;
|
|
|
|
if FKind = cxbkDropDownButton then
|
|
begin
|
|
GetPainterClass.DrawButton(FCanvas, ATempRect, '', AState, True, AColor, FCanvas.Font.Color);
|
|
GetPainterClass.DrawScrollBarArrow(FCanvas, ATempRect, AState, adDown);
|
|
end;
|
|
if Focused and not FMenuVisible then
|
|
FCanvas.DrawFocusRect(GetPainterClass.ButtonFocusRect(FCanvas, R));
|
|
end;
|
|
|
|
procedure TcxCustomButton.InternalRecreateWindow;
|
|
{$IFNDEF VCL}
|
|
var
|
|
ASavedCaption: TCaption;
|
|
{$ENDIF}
|
|
begin
|
|
{$IFDEF VCL}
|
|
RecreateWnd;
|
|
{$ELSE}
|
|
ASavedCaption := Caption;
|
|
RecreateWidget;
|
|
Caption := ASavedCaption;
|
|
{$ENDIF}
|
|
end;
|
|
|
|
function TcxCustomButton.IsColorsStored: Boolean;
|
|
begin
|
|
Result := FColors.AssignedColors <> [];
|
|
end;
|
|
|
|
function TcxCustomButton.IsHotTrack: Boolean;
|
|
begin
|
|
Result := not StandardButton and GetPainterClass.IsButtonHotTrack and Enabled;
|
|
end;
|
|
|
|
procedure TcxCustomButton.ActionChange(Sender: TObject; CheckDefaults: Boolean);
|
|
|
|
procedure CopyImage(ImageList: TCustomImageList; Index: Integer);
|
|
begin
|
|
with Glyph do
|
|
begin
|
|
Width := ImageList.Width;
|
|
Height := ImageList.Height;
|
|
Canvas.Brush.Color := clFuchsia; {! for lack of a better color }
|
|
Canvas.FillRect(Rect(0,0, Width, Height));
|
|
ImageList.Draw(Canvas, 0, 0, Index);
|
|
end;
|
|
end;
|
|
|
|
begin
|
|
inherited ActionChange(Sender, CheckDefaults);
|
|
if Sender is TCustomAction then
|
|
with TCustomAction(Sender) do
|
|
begin
|
|
if (Glyph.Empty) and (ActionList <> nil) and (ActionList.Images <> nil) and
|
|
(ImageIndex >= 0) and (ImageIndex < ActionList.Images.Count) then
|
|
CopyImage(ActionList.Images, ImageIndex);
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomButton.CanResize(var NewWidth, NewHeight: Integer): Boolean;
|
|
begin
|
|
if AutoSize then
|
|
with GetOptimalSize do
|
|
begin
|
|
NewWidth := cx;
|
|
NewHeight := cy;
|
|
end;
|
|
Result := inherited CanResize(NewWidth, NewHeight);
|
|
end;
|
|
|
|
procedure TcxCustomButton.KeyDown(var Key: Word; Shift: TShiftState);
|
|
begin
|
|
if FKind = cxbkDropDownButton then
|
|
{$IFDEF VCL}
|
|
if (Key in [VK_UP, VK_DOWN]) and
|
|
{$ELSE}
|
|
if ((Key = Key_Up) or (Key = Key_Down)) and
|
|
{$ENDIF}
|
|
((ssAlt in Shift) or (ssShift in Shift)) then
|
|
begin
|
|
if not FMenuVisible then DoDropDownMenu;
|
|
Key := 0;
|
|
Exit
|
|
end;
|
|
inherited;
|
|
end;
|
|
|
|
procedure TcxCustomButton.MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
|
var
|
|
R: TRect;
|
|
begin
|
|
if (Button = mbLeft) and (Kind <> cxbkStandard) {$IFDEF LINUX}and not FDblClick{$ENDIF}then
|
|
begin
|
|
if not FMenuVisible {$IFNDEF VCL}and not FClosing{$ENDIF} then
|
|
if FKind = cxbkDropDownButton then
|
|
begin
|
|
R := ClientRect;
|
|
R.Left := R.Right - cxDropDownButtonWidth;
|
|
if PtInRect(R, Point(X, Y)) then DoDropDownMenu;
|
|
end
|
|
else
|
|
DoDropDownMenu
|
|
else
|
|
begin
|
|
FIsMouseClick := True;
|
|
FMenuVisible := False;
|
|
FIsDown := False;
|
|
Repaint;
|
|
end;
|
|
{$IFNDEF VCL}
|
|
FClosing := False;
|
|
{$ENDIF}
|
|
end;
|
|
inherited;
|
|
end;
|
|
|
|
procedure TcxCustomButton.Notification(AComponent: TComponent;
|
|
Operation: TOperation);
|
|
begin
|
|
inherited Notification(AComponent, Operation);
|
|
if Operation = opRemove then
|
|
begin
|
|
if AComponent = FDropDownMenu then
|
|
FDropDownMenu := nil
|
|
else
|
|
if AComponent = PopupMenu then
|
|
PopupMenu := nil;
|
|
end;
|
|
end;
|
|
|
|
{$IFDEF VCL}
|
|
|
|
procedure TcxCustomButton.DrawItem(const DrawItemStruct: TDrawItemStruct);
|
|
begin
|
|
FCanvas.Canvas.Handle := DrawItemStruct.hDC;
|
|
with DrawItemStruct do
|
|
begin
|
|
if not FLockDown then
|
|
FIsDown := itemState and ODS_SELECTED <> 0
|
|
else
|
|
FIsDown := False;
|
|
FIsDefault := (itemState and ODS_FOCUS <> 0) or
|
|
(Default and (csDesigning in ComponentState));
|
|
end;
|
|
InternalPaint;
|
|
FCanvas.Canvas.Handle := 0;
|
|
end;
|
|
|
|
procedure TcxCustomButton.WMCaptureChanged(var Message: TMessage);
|
|
var
|
|
P: TPoint;
|
|
begin
|
|
inherited;
|
|
if csDesigning in ComponentState then Exit;
|
|
GetCursorPos(P);
|
|
FMouseInControl := IsHotTrack and (WindowFromPoint(P) = Handle);
|
|
end;
|
|
|
|
procedure TcxCustomButton.WMContextMenu(var Message: TWMContextMenu);
|
|
var
|
|
AHandled: Boolean;
|
|
P, P1: TPoint;
|
|
begin
|
|
if Message.Result <> 0 then
|
|
Exit;
|
|
if csDesigning in ComponentState then
|
|
begin
|
|
inherited;
|
|
Exit;
|
|
end;
|
|
|
|
P := SmallPointToPoint(Message.Pos);
|
|
if (P.X = -1) and (P.Y = -1) then
|
|
P1 := P
|
|
else
|
|
begin
|
|
P1 := ScreenToClient(P);
|
|
if not PtInRect(ClientRect, P1) then
|
|
begin
|
|
inherited;
|
|
Exit;
|
|
end;
|
|
end;
|
|
|
|
AHandled := False;
|
|
DoContextPopup(P1, AHandled);
|
|
Message.Result := Ord(AHandled);
|
|
if not AHandled then
|
|
inherited;
|
|
end;
|
|
|
|
procedure TcxCustomButton.WMEraseBkgnd(var Message: TWMEraseBkgnd);
|
|
begin
|
|
{$IFNDEF DELPHI7}
|
|
if (csDestroying in ComponentState) or StandardButton or
|
|
(GetPainterClass = TcxWinXPLookAndFeelPainter) then
|
|
inherited
|
|
else
|
|
{$ENDIF}
|
|
Message.Result := 1;
|
|
end;
|
|
|
|
procedure TcxCustomButton.WMLButtonDblClk(var Message: TWMLButtonDblClk);
|
|
begin
|
|
Perform(WM_LBUTTONDOWN, Message.Keys,
|
|
LPARAM(Word(Message.XPos) or (Word(Message.YPos) shr 16)));
|
|
end;
|
|
|
|
procedure TcxCustomButton.WMLButtonDown(var Message: TWMLButtonDown);
|
|
var
|
|
R: TRect;
|
|
begin
|
|
if FKind = cxbkDropDownButton then
|
|
begin
|
|
R := ClientRect;
|
|
R.Left := R.Right - cxDropDownButtonWidth;
|
|
if PtInRect(R, Point(Message.XPos, Message.YPos)) then
|
|
FLockDown := True;
|
|
end;
|
|
inherited;
|
|
end;
|
|
|
|
procedure TcxCustomButton.WMLButtonUp(var Message: TWMLButtonUp);
|
|
begin
|
|
FLockDown := False;
|
|
inherited;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CMCloseupPopupMenu(var Message: TMessage);
|
|
var
|
|
P: TPoint;
|
|
begin
|
|
GetCursorPos(P);
|
|
FMouseInControl := IsHotTrack and (WindowFromPoint(P) = Handle);
|
|
FMenuVisible := False;
|
|
Repaint;
|
|
FLockDown := False;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CMDropDownPopupMenu(var Message: TMessage);
|
|
var
|
|
P: TPoint;
|
|
APopupAlignment: TPopupAlignment;
|
|
APopupMenu: TPopupMenu;
|
|
begin
|
|
if (Kind <> cxbkStandard) then
|
|
begin
|
|
APopupMenu := FDropDownMenu;
|
|
if DoOnDropDownMenuPopup(APopupMenu) or (APopupMenu = nil) then
|
|
Exit;
|
|
FMenuVisible := True;
|
|
Repaint;
|
|
P := GetDropDownMenuPopupPoint(APopupMenu);
|
|
APopupAlignment := APopupMenu.Alignment;
|
|
try
|
|
APopupMenu.Alignment := GetDropDownMenuAlignment(P, FPopupAlignment);
|
|
APopupMenu.PopupComponent := Self;
|
|
APopupMenu.Popup(P.X, P.Y);
|
|
finally
|
|
APopupMenu.Alignment := APopupAlignment;
|
|
end;
|
|
PostMessage(Handle, CM_CLOSEUPPOPUPMENU, 0, 0);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CMFontChanged(var Message: TMessage);
|
|
begin
|
|
inherited;
|
|
UpdateSize;
|
|
Invalidate;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CMEnabledChanged(var Message: TMessage);
|
|
begin
|
|
inherited;
|
|
if not Enabled then FMouseInControl := False;
|
|
Invalidate;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CMMouseEnter(var Message: TMessage);
|
|
begin
|
|
inherited;
|
|
{$IFDEF DELPHI7}
|
|
if csDesigning in ComponentState then Exit;
|
|
{$ENDIF}
|
|
if not FMouseInControl and IsHotTrack and (GetCapture = 0) then
|
|
begin
|
|
BeginMouseTracking(Self, Rect(0, 0, Width, Height), Self);
|
|
FMouseInControl := True;
|
|
Repaint;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CMMouseLeave(var Message: TMessage);
|
|
begin
|
|
inherited;
|
|
{$IFDEF DELPHI7}
|
|
if csDesigning in ComponentState then Exit;
|
|
{$ENDIF}
|
|
EndMouseTracking(Self);
|
|
if FMouseInControl and IsHotTrack then
|
|
begin
|
|
FMouseInControl := False;
|
|
Invalidate;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CNDrawItem(var Message: TWMDrawItem);
|
|
begin
|
|
if not(csDestroying in ComponentState) then
|
|
DrawItem(Message.DrawItemStruct^);
|
|
end;
|
|
|
|
procedure TcxCustomButton.CNKeyDown(var Message: TWMKeyDown);
|
|
begin
|
|
if IsPopupMenuShortCut(PopupMenu, Message) then
|
|
Message.Result := 1
|
|
else
|
|
inherited;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CNMeasureItem(var Message: TWMMeasureItem);
|
|
var
|
|
ATempVar: TMeasureItemStruct;
|
|
begin
|
|
ATempVar := Message.MeasureItemStruct^;
|
|
ATempVar.itemWidth := Width;
|
|
ATempVar.itemHeight := Height;
|
|
Message.MeasureItemStruct^ := ATempVar;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CNSysKeyDown(var Message: TWMSysKeyDown);
|
|
begin
|
|
if IsPopupMenuShortCut(PopupMenu, Message) then
|
|
Message.Result := 1
|
|
else
|
|
inherited;
|
|
end;
|
|
|
|
procedure TcxCustomButton.CreateHandle;
|
|
var
|
|
State: TcxButtonState;
|
|
begin
|
|
if Enabled then
|
|
State := cxbsNormal
|
|
else
|
|
State := cxbsDisabled;
|
|
inherited CreateHandle;
|
|
FGlyph.CreateButtonGlyph(State);
|
|
end;
|
|
|
|
procedure TcxCustomButton.CreateParams(var Params: TCreateParams);
|
|
begin
|
|
inherited CreateParams(Params);
|
|
if not StandardButton then
|
|
with Params do Style := Style or BS_OWNERDRAW;
|
|
end;
|
|
|
|
procedure TcxCustomButton.DestroyWindowHandle;
|
|
begin
|
|
if FMenuVisible then
|
|
SendMessage(Handle, CM_CLOSEUPPOPUPMENU, 0, 0);
|
|
inherited DestroyWindowHandle;
|
|
end;
|
|
|
|
function TcxCustomButton.GetPalette: HPALETTE;
|
|
begin
|
|
Result := Glyph.Palette;
|
|
end;
|
|
|
|
procedure TcxCustomButton.SetButtonStyle(ADefault: Boolean);
|
|
begin
|
|
if StandardButton then
|
|
inherited SetButtonStyle(ADefault)
|
|
else
|
|
if ADefault <> FIsFocused then
|
|
begin
|
|
FIsFocused := ADefault;
|
|
Refresh;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.MouseMove(Shift: TShiftState; X, Y: Integer);
|
|
begin
|
|
inherited MouseMove(Shift, X, Y);
|
|
if not FMouseInControl and IsHotTrack and PtInRect(ClientRect, Point(X, Y)) and
|
|
(GetCapture = 0) then
|
|
Perform(CM_MOUSEENTER, 0, 0);
|
|
end;
|
|
|
|
{$ELSE}
|
|
|
|
procedure TcxCustomButton.EnabledChanged;
|
|
begin
|
|
inherited EnabledChanged;
|
|
if not Enabled then FMouseInControl := False;
|
|
Invalidate;
|
|
end;
|
|
|
|
procedure TcxCustomButton.FontChanged;
|
|
begin
|
|
inherited FontChanged;
|
|
invalidate;
|
|
end;
|
|
|
|
procedure TcxCustomButton.InitWidget;
|
|
var
|
|
State: TcxButtonState;
|
|
begin
|
|
if Enabled then
|
|
State := cxbsNormal
|
|
else
|
|
State := cxbsDisabled;
|
|
inherited InitWidget;
|
|
FGlyph.CreateButtonGlyph(State);
|
|
end;
|
|
|
|
procedure TcxCustomButton.MouseEnter(AControl: TControl);
|
|
begin
|
|
inherited MouseEnter(AControl);
|
|
{$IFDEF DELPHI7}
|
|
if csDesigning in ComponentState then Exit;
|
|
{$ENDIF}
|
|
if IsHotTrack and not FMouseInControl and (GetCaptureControl = nil) then
|
|
begin
|
|
FMouseInControl := True;
|
|
Repaint;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomButton.MouseLeave(AControl: TControl);
|
|
begin
|
|
inherited MouseLeave(AControl);
|
|
{$IFDEF DELPHI7}
|
|
if csDesigning in ComponentState then Exit;
|
|
{$ENDIF}
|
|
if IsHotTrack and FMouseInControl then
|
|
begin
|
|
FMouseInControl := False;
|
|
Invalidate;
|
|
QWidget_update(Handle);
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomButton.NeedKey(Key: Integer; Shift: TShiftState;
|
|
const KeyText: WideString): Boolean;
|
|
begin
|
|
if (FKind = cxbkDropDownButton) and ((Key = Key_Up) or (Key = Key_Down)) and
|
|
((ssCtrl in Shift) or (ssShift in Shift)) and not FMenuVisible then
|
|
begin
|
|
DoDropDownMenu;
|
|
Result := True;
|
|
end
|
|
else
|
|
Result := inherited NeedKey(Key, Shift, KeyText);
|
|
end;
|
|
|
|
procedure TcxCustomButton.Painting(Sender: QObjectH; EventRegion: QRegionH);
|
|
begin
|
|
TControlCanvas(FControlCanvas).StartPaint;
|
|
try
|
|
QPainter_setClipRegion(FControlCanvas.Handle, EventRegion);
|
|
InternalPaint;
|
|
finally
|
|
TControlCanvas(FControlCanvas).StopPaint;
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomButton.WidgetFlags: Integer;
|
|
begin
|
|
Result := Integer(WidgetFlags_WRepaintNoErase);
|
|
end;
|
|
{$ENDIF}
|
|
|
|
{$IFNDEF VCL}
|
|
initialization
|
|
FObjectEventFilter := TcxObjectEventFilter.Create(Application.Handle);
|
|
|
|
finalization
|
|
FreeAndNil(FObjectEventFilter);
|
|
{$ENDIF}
|
|
|
|
end.
|
|
|
|
|
|
|