1581 lines
51 KiB
ObjectPascal
1581 lines
51 KiB
ObjectPascal
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{********************************************************************}
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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) 1998-2009 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 cxCheckComboBox;
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interface
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{$I cxVer.inc}
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uses
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{$IFDEF DELPHI6}
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Variants,
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{$ENDIF}
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Windows, Messages, SysUtils, Classes, Controls, Graphics, StdCtrls,
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Forms, Math, dxCore, cxClasses, cxControls, cxContainer, cxGraphics,
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cxDataStorage, cxDataUtils, cxVariants, cxEdit, cxEditUtils,
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cxTextEdit, cxMaskEdit, cxDropDownEdit, cxImageComboBox,
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cxExtEditUtils, cxCheckBox, cxLookAndFeels, cxExtEditConsts,
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cxGroupBox, cxFilterControlUtils, cxLookAndFeelPainters;
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type
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{ TcxCheckComboBoxItem }
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TcxCheckComboBoxItem = class(TcxButtonGroupItem)
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private
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FShortDescription: TCaption;
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function GetDescription: TCaption;
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procedure SetDescription(const Value: TCaption);
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procedure SetShortDescription(const Value: TCaption);
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protected
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function GetDisplayDescription: string; virtual;
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public
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procedure Assign(Source: TPersistent); override;
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published
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property Description: TCaption read GetDescription write SetDescription;
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property Enabled;
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property ShortDescription: TCaption read FShortDescription
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write SetShortDescription;
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property Tag;
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end;
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{ TcxCheckComboBoxItems }
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TcxCheckComboBoxItems = class(TcxButtonGroupItems)
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private
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function GetItems(Index: Integer): TcxCheckComboBoxItem;
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procedure SetItems(Index: Integer; const Value: TcxCheckComboBoxItem);
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public
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function Add: TcxCheckComboBoxItem;
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function AddCheckItem(const ADescription: TCaption;
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const AShortDescription: TCaption = ''): TcxCheckComboBoxItem;
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property Items[Index: Integer]: TcxCheckComboBoxItem read GetItems write SetItems; default;
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end;
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{ TcxCustomCheckComboBoxViewData }
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TcxCustomCheckComboBoxProperties = class;
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TcxCustomCheckComboBoxViewData = class(TcxCustomDropDownEditViewData)
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protected
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function GetProperties: TcxCustomCheckComboBoxProperties;
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function InternalEditValueToDisplayText(AEditValue: TcxEditValue): string; override;
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function IsComboBoxStyle: Boolean; override;
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public
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procedure Calculate(ACanvas: TcxCanvas; const ABounds: TRect;
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const P: TPoint; Button: TcxMouseButton; Shift: TShiftState;
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AViewInfo: TcxCustomEditViewInfo; AIsMouseEvent: Boolean); override;
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property Properties: TcxCustomCheckComboBoxProperties read GetProperties;
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end;
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{ TcxCheckComboBoxListBox }
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TcxCustomCheckComboBox = class;
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TcxCustomCheckComboBoxListBox = class(TcxCustomComboBoxListBox,
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IUnknown, IcxMouseTrackingCaller)
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private
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FCapturedCheckIndex: Integer;
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FCheckBorderOffset: Integer;
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FCheckSize: TSize;
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FHotCheckIndex: Integer;
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FInternalUpdate: Boolean;
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FPressedCheckIndex: Integer;
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function GetEdit: TcxCustomCheckComboBox;
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procedure LBGetTextLen(var Message: TMessage); message LB_GETTEXTLEN;
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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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protected
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// IcxMouseTrackingCaller
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procedure IcxMouseTrackingCaller.MouseLeave = MouseTrackingMouseLeave;
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procedure MouseTrackingMouseLeave;
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procedure CheckHotTrack;
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function DoMouseWheel(Shift: TShiftState; WheelDelta: Integer;
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MousePos: TPoint): Boolean; override;
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procedure DrawItem(Index: Integer; Rect: TRect; State: TOwnerDrawState); override;
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procedure FullRepaint;
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function GetCheckAt(X, Y: Integer): Integer;
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function GetCheckRect(const R: TRect; AReturnFullRect: Boolean): TRect;
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procedure InternalMouseMove(Shift: TShiftState; X, Y: Integer);
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procedure InvalidateCheck(Index: Integer);
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procedure KeyPress(var Key: Char); override;
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procedure LookAndFeelChanged(Sender: TcxLookAndFeel;
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AChangedValues: TcxLookAndFeelValues); override;
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procedure MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override;
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procedure MouseMove(Shift: TShiftState; X, Y: Integer); override;
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procedure MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override;
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procedure RecreateWindow; override;
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procedure SetItemIndex(const Value: Integer); override;
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procedure SynchronizeCheckStates(ANewHotCheckIndex, ANewPressedIndex: Integer);
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procedure UpdateItemState(const AIndex: Integer); virtual;
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property Edit: TcxCustomCheckComboBox read GetEdit;
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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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function GetItemHeight(AIndex: Integer = -1): Integer; override;
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function GetItemWidth(AIndex: Integer): Integer; override;
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end;
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{ TcxCheckComboBoxLookupData }
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TcxCheckComboBoxLookupData = class(TcxComboBoxLookupData)
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protected
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function GetListBoxClass: TcxCustomEditListBoxClass; override;
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function GetItem(Index: Integer): string; override;
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function GetItemCount: Integer; override;
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public
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procedure TextChanged; override;
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end;
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{ TcxCheckPaintHelper }
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TcxCheckPaintHelper = class(TcxOwnedPersistent)
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private
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FStyle: TcxCustomEditStyle;
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FGlyph: TBitmap;
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FGlyphCount: Integer;
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procedure SetStyle(Value: TcxCustomEditStyle);
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protected
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function GetNextState(Value: TcxCheckBoxState): TcxCheckBoxState; virtual;
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property Style: TcxCustomEditStyle read FStyle write SetStyle;
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property Glyph: TBitmap read FGlyph write FGlyph;
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property GlyphCount: Integer read FGlyphCount write FGlyphCount;
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function CalcTextRect(const ARect: TRect; const ACheckState: TcxCheckBoxState): TRect; virtual;
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function CalcCheckPoint(const ARect: TRect; const ACheckState: TcxCheckBoxState): TPoint; virtual;
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function IsClickInCheck(const AItemRect: TRect; const ACheckState: TcxCheckBoxState;
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X, Y: Integer; const AUseRightToLeftAlignment: Boolean = False): Boolean;
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function GetCheckWidth: Integer; virtual;
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public
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constructor Create(AOwner : TPersistent); override;
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destructor Destroy; override;
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end;
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{ TcxCustomCheckComboBoxProperties }
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TcxCheckComboClickCheckEvent = procedure(Sender: TObject; ItemIndex: Integer;
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var AllowToggle: Boolean) of object;
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TcxCustomCheckComboBoxProperties = class(TcxCustomComboBoxProperties)
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private
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FAllowGrayed: Boolean; // deprecated
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FCheckPaintHelper : TcxCheckPaintHelper;
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FDelimiter: string;
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FEditValueFormat: TcxCheckStatesValueFormat;
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FEmptySelectionText: string;
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FGlyph: TBitmap;
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FGlyphCount: Integer;
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FItems: TcxCheckComboBoxItems;
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FShowEmptyText: Boolean;
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FOnClickCheck: TcxCheckComboClickCheckEvent;
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FOnEditValueToStates: TcxValueToCheckStatesEvent;
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FOnStatesToEditValue: TcxCheckStatesToValueEvent;
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function GetGlyph: TBitmap;
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procedure GlyphChanged(Sender: TObject);
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function IsDelimiterStored: Boolean;
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function IsEmptySelectionTextStored: Boolean;
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procedure SetGlyph(Value: TBitmap);
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procedure SetGlyphCount(Value: Integer);
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procedure SetDelimiter(Value: string);
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procedure SetEditValueFormat(Value: TcxCheckStatesValueFormat);
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procedure SetEmptySelectionText(Value: string);
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procedure SetShowEmptyText(Value: Boolean);
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procedure SetItems(const Value: TcxCheckComboBoxItems);
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procedure CheckEditValueFormat;
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function GetRealEditValueFormat: TcxCheckStatesValueFormatEx;
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procedure ItemsChanged(Sender: TObject; AItem: TCollectionItem);
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protected
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class function GetLookupDataClass: TcxInterfacedPersistentClass; override;
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class function GetPopupWindowClass: TcxCustomEditPopupWindowClass; override;
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class function GetViewDataClass: TcxCustomEditViewDataClass; override;
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function HasDisplayValue: Boolean; override;
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procedure CalculateCheckStatesByEditValue(Sender: TObject;
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const AEditValue: TcxEditValue; var ACheckStates: TcxCheckStates); virtual;
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function CalculateDisplayValueByCheckStates(
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const ACheckStates: TcxCheckStates): string; virtual;
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function CalculateEditValueByCheckStates(Sender: TObject;
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const ACheckStates: TcxCheckStates): TcxEditValue; virtual;
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property AllowGrayed: Boolean read FAllowGrayed write FAllowGrayed
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stored False; // deprecated
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public
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constructor Create(AOwner: TPersistent); override;
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destructor Destroy; override;
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procedure Assign(Source: TPersistent); override;
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class function GetContainerClass: TcxContainerClass; override;
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function GetEditValueSource(AEditFocused: Boolean): TcxDataEditValueSource; override;
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function GetSupportedOperations: TcxEditSupportedOperations; override;
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procedure PrepareDisplayValue(const AEditValue: TcxEditValue;
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var DisplayValue: TcxEditValue; AEditFocused: Boolean); override;
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function IsEditValueValid(var EditValue: TcxEditValue; AEditFocused: Boolean): Boolean; override;
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// !!!
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property EditValueFormat: TcxCheckStatesValueFormat
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read FEditValueFormat write SetEditValueFormat default cvfInteger;
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property Glyph: TBitmap read GetGlyph write SetGlyph;
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property GlyphCount: Integer read FGlyphCount write SetGlyphCount default 6;
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property Delimiter: string read FDelimiter write SetDelimiter
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stored IsDelimiterStored;
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property EmptySelectionText : string read FEmptySelectionText
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write SetEmptySelectionText stored IsEmptySelectionTextStored;
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property Items: TcxCheckComboBoxItems read FItems write SetItems;
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property ShowEmptyText: Boolean read FShowEmptyText write SetShowEmptyText default True;
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property OnClickCheck: TcxCheckComboClickCheckEvent read FOnClickCheck
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write FOnClickCheck;
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property OnEditValueToStates: TcxValueToCheckStatesEvent
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read FOnEditValueToStates write FOnEditValueToStates;
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property OnStatesToEditValue: TcxCheckStatesToValueEvent
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read FOnStatesToEditValue write FOnStatesToEditValue;
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end;
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{ TcxCheckComboBoxProperties }
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TcxCheckComboBoxProperties = class(TcxCustomCheckComboBoxProperties)
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published
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property AllowGrayed; // deprecated
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property AssignedValues;
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property Delimiter;
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property EmptySelectionText;
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property ShowEmptyText;
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property Alignment;
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property BeepOnError;
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property ButtonGlyph;
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property CharCase;
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property ClearKey;
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property DropDownAutoWidth;
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property DropDownRows;
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property DropDownSizeable;
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property DropDownWidth;
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property EditValueFormat;
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property Glyph;
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property GlyphCount;
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property ImeMode;
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property ImeName;
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property ImmediateDropDown;
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property ImmediatePopup;
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property ImmediatePost;
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property Items;
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property PopupAlignment;
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property ReadOnly;
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property ValidateOnEnter;
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property OnChange;
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property OnClickCheck;
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property OnCloseUp;
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property OnEditValueChanged;
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property OnEditValueToStates;
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property OnInitPopup;
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property OnPopup;
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property OnStatesToEditValue;
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end;
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{ TcxCheckComboBoxPopupWindow }
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TcxCheckComboBoxPopupWindow = class(TcxComboBoxPopupWindow)
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public
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property ViewInfo;
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property SysPanelStyle;
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end;
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{ TcxCustomCheckComboBox }
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TcxCustomCheckComboBox = class(TcxCustomComboBox)
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private
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FCheckBorderStyle: TcxEditCheckBoxBorderStyle;
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FNativeStyle: Boolean;
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FStates: TcxCheckStates;
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FStatesItems: Boolean;
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function GetActiveProperties: TcxCustomCheckComboBoxProperties;
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function GetLookupData: TcxCheckComboBoxLookupData;
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function GetProperties: TcxCustomCheckComboBoxProperties;
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procedure SetProperties(Value: TcxCustomCheckComboBoxProperties);
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protected
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procedure CalculateDrawCheckParams;
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function GetValue: Variant; virtual; // deprecated
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procedure PopupControlsLookAndFeelChanged(Sender: TcxLookAndFeel;
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AChangedValues: TcxLookAndFeelValues); override;
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procedure PopupWindowShowed(Sender: TObject); override;
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procedure PropertiesChanged(Sender: TObject); override;
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function DoRefreshContainer(const P: TPoint; Button: TcxMouseButton;
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Shift: TShiftState; AIsMouseEvent: Boolean): Boolean; override;
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procedure SetItemIndex(Value: Integer); override;
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procedure SetValue(const AValue: Variant); virtual; // deprecated
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procedure SynchronizeDisplayValue; override;
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procedure SynchronizeEditValue; override;
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procedure UpdateDrawValue; override;
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function ClickCheck(AItemIndex: Integer): Boolean; virtual;
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function DoClickCheck(AItemIndex: Integer): Boolean;
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function GetEditingValue: TcxEditValue; override;
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procedure HandleSelectItem(Sender: TObject); override;
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procedure Initialize; override;
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procedure InitializePopupWindow; override;
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function InternalGetText: string; override;
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function InternalSetText(const Value: string): Boolean; override;
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procedure InternalValidateDisplayValue(const ADisplayValue: TcxEditValue); override;
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function IsEditValueStored: Boolean; override;
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procedure KeyPress(var Key: Char); override;
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property LookupData: TcxCheckComboBoxLookupData read GetLookupData;
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property Value: Variant read GetValue write SetValue stored False; // deprecated
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procedure CloseUp(AReason: TcxEditCloseUpReason); override;
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property StatesItems: Boolean read FStatesItems write FStatesItems stored False;
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public
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class function GetPropertiesClass: TcxCustomEditPropertiesClass; override;
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function GetItemState(AIndex: Integer): TcxCheckBoxState; // deprecated
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procedure SetItemState(AIndex: Integer; AState: TcxCheckBoxState); // deprecated
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property ActiveProperties: TcxCustomCheckComboBoxProperties
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read GetActiveProperties;
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property Properties: TcxCustomCheckComboBoxProperties read GetProperties
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write SetProperties;
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property States[AIndex: Integer]: TcxCheckBoxState read GetItemState
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write SetItemState;
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end;
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{ TcxCheckComboBox }
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TcxCheckComboBox = class(TcxCustomCheckComboBox)
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private
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function GetActiveProperties: TcxCheckComboBoxProperties;
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function GetProperties: TcxCheckComboBoxProperties;
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procedure SetProperties(Value: TcxCheckComboBoxProperties);
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public
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class function GetPropertiesClass: TcxCustomEditPropertiesClass; override;
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property ActiveProperties: TcxCheckComboBoxProperties
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read GetActiveProperties;
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published
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property Anchors;
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property AutoSize;
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property BeepOnEnter;
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property Constraints;
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property DragCursor;
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property DragKind;
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property DragMode;
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property Enabled;
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property ImeMode;
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property ImeName;
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property ParentColor;
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property ParentFont;
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property ParentShowHint;
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property PopupMenu;
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property Properties: TcxCheckComboBoxProperties read GetProperties
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write SetProperties;
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property ShowHint;
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property StatesItems;
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property EditValue; // to be after StatesItems (B34627)
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property Style;
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property StyleDisabled;
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property StyleFocused;
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property StyleHot;
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property TabOrder;
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property TabStop;
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property Value; // deprecated
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property Visible;
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{$IFDEF DELPHI5}
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property OnContextPopup;
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{$ENDIF}
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property OnDragDrop;
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property OnDragOver;
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property OnEditing;
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property OnEndDock;
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property OnEndDrag;
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property OnEnter;
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property OnExit;
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property OnKeyDown;
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property OnKeyPress;
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property OnKeyUp;
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property OnMouseDown;
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property OnMouseEnter;
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property OnMouseLeave;
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property OnMouseMove;
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property OnMouseUp;
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property OnStartDock;
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property OnStartDrag;
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end;
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{ TcxFilterChecksHelper }
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TcxFilterChecksHelper = class(TcxFilterComboBoxHelper)
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protected
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class function GetEditValueFormat(
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AEditProperties: TcxCustomEditProperties): TcxCheckStatesValueFormat; virtual;
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class function GetItems(
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AEditProperties: TcxCustomEditProperties): IcxCheckItems; virtual;
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class procedure InitializeItems(AProperties,
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AEditProperties: TcxCustomEditProperties); virtual;
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public
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class function GetFilterEditClass: TcxCustomEditClass; override;
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class function GetSupportedFilterOperators(
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AProperties: TcxCustomEditProperties; AValueTypeClass: TcxValueTypeClass;
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AExtendedSet: Boolean = False): TcxFilterControlOperators; override;
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class procedure InitializeProperties(AProperties,
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AEditProperties: TcxCustomEditProperties; AHasButtons: Boolean); override;
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end;
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{ TcxFilterCheckComboBoxHelper }
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TcxFilterCheckComboBoxHelper = class(TcxFilterChecksHelper)
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protected
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class function GetEditValueFormat(
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AEditProperties: TcxCustomEditProperties): TcxCheckStatesValueFormat; override;
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class function GetItems(
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AEditProperties: TcxCustomEditProperties): IcxCheckItems; override;
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end;
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const
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cxCheckComboValuesDelimiter = ';';
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implementation
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uses
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dxThemeManager;
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|
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{ TcxCheckComboBoxItem }
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procedure TcxCheckComboBoxItem.Assign(Source: TPersistent);
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begin
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if Source is TcxCheckComboBoxItem then
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ShortDescription := TcxCheckComboBoxItem(Source).ShortDescription;
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inherited Assign(Source);
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end;
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function TcxCheckComboBoxItem.GetDisplayDescription: string;
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begin
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if ShortDescription <> '' then
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Result := ShortDescription
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else
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Result := Description;
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end;
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function TcxCheckComboBoxItem.GetDescription: TCaption;
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begin
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Result := Caption;
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end;
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procedure TcxCheckComboBoxItem.SetDescription(const Value: TCaption);
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begin
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Caption := Value;
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end;
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procedure TcxCheckComboBoxItem.SetShortDescription(const Value: TCaption);
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begin
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if Value <> FShortDescription then
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begin
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FShortDescription := Value;
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DoChanged(Collection, copChanged);
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end;
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end;
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|
|
|
{ TcxCheckComboBoxItems }
|
|
|
|
function TcxCheckComboBoxItems.GetItems(Index: Integer): TcxCheckComboBoxItem;
|
|
begin
|
|
Result := TcxCheckComboBoxItem(inherited Items[Index]);
|
|
end;
|
|
|
|
procedure TcxCheckComboBoxItems.SetItems(Index: Integer;const Value: TcxCheckComboBoxItem);
|
|
begin
|
|
inherited Items[Index] := Value;
|
|
end;
|
|
|
|
function TcxCheckComboBoxItems.Add: TcxCheckComboBoxItem;
|
|
begin
|
|
Result := TcxCheckComboBoxItem(inherited Add);
|
|
end;
|
|
|
|
function TcxCheckComboBoxItems.AddCheckItem(const ADescription: TCaption;
|
|
const AShortDescription: TCaption = ''): TcxCheckComboBoxItem;
|
|
begin
|
|
Result := Add;
|
|
Result.Description := ADescription;
|
|
Result.ShortDescription := AShortDescription;
|
|
end;
|
|
|
|
{ TcxCustomCheckComboBoxViewData }
|
|
|
|
procedure TcxCustomCheckComboBoxViewData.Calculate(ACanvas: TcxCanvas;
|
|
const ABounds: TRect; const P: TPoint; Button: TcxMouseButton;
|
|
Shift: TShiftState; AViewInfo: TcxCustomEditViewInfo; AIsMouseEvent: Boolean);
|
|
begin
|
|
if IsRectEmpty(ABounds) then
|
|
begin
|
|
inherited;
|
|
Exit;
|
|
end;
|
|
inherited Calculate(ACanvas, ABounds, P, Button, Shift, AViewInfo, AIsMouseEvent);
|
|
if (ABounds.Right = MaxInt) or (ABounds.Bottom = MaxInt) then Exit;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxViewData.GetProperties: TcxCustomCheckComboBoxProperties;
|
|
begin
|
|
Result := TcxCustomCheckComboBoxProperties(FProperties);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxViewData.InternalEditValueToDisplayText(
|
|
AEditValue: TcxEditValue): string;
|
|
var
|
|
ASender: TObject;
|
|
begin
|
|
if IsInplace then
|
|
ASender := nil
|
|
else
|
|
ASender := Edit;
|
|
Properties.CalculateCheckStatesByEditValue(ASender, AEditValue, CheckStates);
|
|
Result := Properties.CalculateDisplayValueByCheckStates(CheckStates);
|
|
Properties.DisplayValueToDisplayText(Result);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxViewData.IsComboBoxStyle: Boolean;
|
|
begin
|
|
Result := True;
|
|
end;
|
|
|
|
{ TcxCustomCheckComboBoxListBox }
|
|
|
|
constructor TcxCustomCheckComboBoxListBox.Create(AOwner: TComponent);
|
|
begin
|
|
inherited Create(AOwner);
|
|
FCapturedCheckIndex := -1;
|
|
FHotCheckIndex := -1;
|
|
FInternalUpdate := False;
|
|
FPressedCheckIndex := -1;
|
|
Style := lbOwnerDrawFixed;
|
|
end;
|
|
|
|
destructor TcxCustomCheckComboBoxListBox.Destroy;
|
|
begin
|
|
EndMouseTracking(Self);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxListBox.GetItemHeight(AIndex: Integer = -1): Integer;
|
|
begin
|
|
if Edit.ActiveProperties.ItemHeight > 0 then
|
|
Result := Edit.ActiveProperties.ItemHeight
|
|
else
|
|
Result := inherited GetItemHeight(AIndex);
|
|
if Result < FCheckSize.cy + 2 then
|
|
Result := FCheckSize.cy + 2;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxListBox.GetItemWidth(AIndex: Integer): Integer;
|
|
begin
|
|
Result := inherited GetItemWidth(AIndex);
|
|
Inc(Result, ItemHeight);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.MouseTrackingMouseLeave;
|
|
begin
|
|
InternalMouseMove([], -1, -1);
|
|
EndMouseTracking(Self);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.CheckHotTrack;
|
|
var
|
|
P: TPoint;
|
|
begin
|
|
P := ScreenToClient(InternalGetCursorPos);
|
|
InternalMouseMove(InternalGetShiftState, P.X, P.Y);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxListBox.DoMouseWheel(Shift: TShiftState;
|
|
WheelDelta: Integer; MousePos: TPoint): Boolean;
|
|
begin
|
|
Result := inherited DoMouseWheel(Shift, WheelDelta, MousePos);
|
|
CheckHotTrack;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.DrawItem(Index: Integer; Rect: TRect;
|
|
State: TOwnerDrawState);
|
|
|
|
function GetCheckState(AIsItemEnabled: Boolean): TcxEditCheckState;
|
|
begin
|
|
if not AIsItemEnabled then
|
|
Result := ecsDisabled
|
|
else
|
|
if FHotCheckIndex = Index then
|
|
Result := ecsHot
|
|
else
|
|
if FPressedCheckIndex = Index then
|
|
Result := ecsPressed
|
|
else
|
|
Result := ecsNormal;
|
|
end;
|
|
|
|
function GetCheckBorderStyle(ACheckState: TcxEditCheckState): TcxEditCheckBoxBorderStyle;
|
|
begin
|
|
if not Edit.FNativeStyle and (Edit.FCheckBorderStyle = ebsFlat) and
|
|
(ACheckState in [ecsHot, ecsPressed]) then
|
|
Result := ebs3D
|
|
else
|
|
Result := Edit.FCheckBorderStyle;
|
|
end;
|
|
|
|
var
|
|
ACheckState: TcxEditCheckState;
|
|
AFlags: Longint;
|
|
AText: string;
|
|
ATextRect : TRect;
|
|
begin
|
|
if DoDrawItem(Index, Rect, State) then
|
|
Exit;
|
|
with Edit.ActiveProperties do
|
|
begin
|
|
Canvas.FillRect(Rect);
|
|
FCheckPaintHelper.Glyph := Glyph;
|
|
FCheckPaintHelper.GlyphCount := GlyphCount;
|
|
ATextRect := FCheckPaintHelper.CalcTextRect(Rect, Edit.FStates[Index]);
|
|
AText := GetItem(Index);
|
|
AFlags := DrawTextBiDiModeFlags(DT_SINGLELINE or DT_LEFT or DT_VCENTER or DT_NOPREFIX);
|
|
if not Items[Index].Enabled then
|
|
Canvas.Font.Color := Edit.StyleDisabled.TextColor;
|
|
cxDrawText(Canvas.Handle, AText, ATextRect, AFlags);
|
|
if Rect.Top >= 0 then
|
|
begin
|
|
ACheckState := GetCheckState(Items[Index].Enabled);
|
|
SaveCanvasParametersForFocusRect;
|
|
DrawEditCheck(Canvas, GetCheckRect(Rect, True), Edit.FStates[Index],
|
|
ACheckState, Glyph, GlyphCount, GetCheckBorderStyle(ACheckState),
|
|
Edit.FNativeStyle, clBtnText, Color, False, False, False, False,
|
|
Edit.Style.LookAndFeel.SkinPainter);
|
|
RestoreCanvasParametersForFocusRect;
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.FullRepaint;
|
|
var
|
|
R: TRect;
|
|
begin
|
|
if HandleAllocated then
|
|
begin
|
|
R := GetControlRect(Self);
|
|
InvalidateRect(Handle, @R, True);
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxListBox.GetCheckAt(X, Y: Integer): Integer;
|
|
begin
|
|
Result := ItemAtPos(Point(X, Y), True);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxListBox.GetCheckRect(const R: TRect; AReturnFullRect: Boolean): TRect;
|
|
begin
|
|
// ToDo RightToLeftAlignment
|
|
with R do
|
|
begin
|
|
Result.Top := (Bottom - Top - FCheckSize.cy) div 2;
|
|
Result.Left := Result.Top;
|
|
Inc(Result.Top, Top);
|
|
Result.Bottom := Result.Top + FCheckSize.cy;
|
|
if Result.Left < 1 then
|
|
Result.Left := 1;
|
|
Result.Right := Result.Left + FCheckSize.cx;
|
|
end;
|
|
if AReturnFullRect then
|
|
InflateRect(Result, FCheckBorderOffset, FCheckBorderOffset);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.InternalMouseMove(Shift: TShiftState; X, Y: Integer);
|
|
var
|
|
ANewHotCheckIndex, ANewPressedCheckIndex: Integer;
|
|
begin
|
|
ANewHotCheckIndex := FHotCheckIndex;
|
|
ANewPressedCheckIndex := FPressedCheckIndex;
|
|
if FCapturedCheckIndex <> -1 then
|
|
begin
|
|
ANewHotCheckIndex := -1;
|
|
if GetCheckAt(X, Y) = FCapturedCheckIndex then
|
|
ANewPressedCheckIndex := FCapturedCheckIndex
|
|
else
|
|
ANewPressedCheckIndex := -1;
|
|
end;
|
|
if (GetCaptureControl <> Self) and (Shift = []) then
|
|
ANewHotCheckIndex := GetCheckAt(X, Y);
|
|
SynchronizeCheckStates(ANewHotCheckIndex, ANewPressedCheckIndex);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.InvalidateCheck(Index: Integer);
|
|
var
|
|
R: TRect;
|
|
begin
|
|
R := ItemRect(Index);
|
|
R := GetCheckRect(R, False);
|
|
InvalidateRect(Handle, @R, False);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.KeyPress(var Key: Char);
|
|
begin
|
|
if (ItemIndex <> -1) and Assigned(Edit) then
|
|
begin
|
|
if (Key = Char(VK_SPACE)) then
|
|
begin
|
|
if not (Edit.ActiveProperties.Items[ItemIndex].Enabled) then Exit;
|
|
FInternalUpdate := True;
|
|
UpdateItemState(ItemIndex);
|
|
FInternalUpdate := False;
|
|
Key := #0;
|
|
end;
|
|
end
|
|
else
|
|
inherited KeyPress(Key);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.LookAndFeelChanged(Sender: TcxLookAndFeel;
|
|
AChangedValues: TcxLookAndFeelValues);
|
|
begin
|
|
inherited LookAndFeelChanged(Sender, AChangedValues);
|
|
RecreateWindow;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.MouseDown(Button: TMouseButton;
|
|
Shift: TShiftState; X, Y: Integer);
|
|
var
|
|
ANewPressedCheckIndex: Integer;
|
|
begin
|
|
inherited MouseDown(Button, Shift, X, Y);
|
|
if Button = mbLeft then
|
|
begin
|
|
ANewPressedCheckIndex := GetCheckAt(X, Y);
|
|
FCapturedCheckIndex := ANewPressedCheckIndex;
|
|
end
|
|
else
|
|
ANewPressedCheckIndex := -1;
|
|
SynchronizeCheckStates(-1, ANewPressedCheckIndex);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.MouseMove(Shift: TShiftState; X, Y: Integer);
|
|
var
|
|
APopupMouseMoveLocked: Boolean;
|
|
begin
|
|
APopupMouseMoveLocked := Edit.PopupMouseMoveLocked;
|
|
inherited MouseMove(Shift, X, Y);
|
|
if not APopupMouseMoveLocked then
|
|
begin
|
|
InternalMouseMove(Shift, X, Y);
|
|
BeginMouseTracking(Self, GetControlRect(Self), Self);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
|
var
|
|
AItemIndex: Integer;
|
|
ANewHotCheckIndex, ANewPressedCheckIndex: Integer;
|
|
begin
|
|
inherited MouseUp(Button, Shift, X, Y);
|
|
ANewPressedCheckIndex := FPressedCheckIndex;
|
|
if Button = mbLeft then
|
|
begin
|
|
SetCaptureControl(nil);
|
|
AItemIndex := ItemAtPos(Point(X, Y), True);
|
|
if (AItemIndex <> -1) and Edit.ActiveProperties.Items[ItemIndex].Enabled then
|
|
begin
|
|
Edit.LookupData.InternalSetCurrentKey(AItemIndex);
|
|
if AItemIndex = FPressedCheckIndex then
|
|
UpdateItemState(AItemIndex);
|
|
end;
|
|
ANewPressedCheckIndex := -1;
|
|
end;
|
|
if Shift = [] then
|
|
ANewHotCheckIndex := GetCheckAt(X, Y)
|
|
else
|
|
ANewHotCheckIndex := -1;
|
|
SynchronizeCheckStates(ANewHotCheckIndex, ANewPressedCheckIndex);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.RecreateWindow;
|
|
begin
|
|
with Edit do
|
|
begin
|
|
FCheckSize := GetEditCheckSize(Self.Canvas, PopupControlsLookAndFeel.NativeStyle,
|
|
ActiveProperties.Glyph, ActiveProperties.GlyphCount, PopupControlsLookAndFeel.SkinPainter);
|
|
FCheckBorderOffset := GetEditCheckBorderOffset(TcxContainerBorderStyle(FCheckBorderStyle),
|
|
FNativeStyle, VerifyBitmap(ActiveProperties.Glyph) and (ActiveProperties.GlyphCount > 0),
|
|
LookAndFeel.SkinPainter);
|
|
end;
|
|
FCheckSize.cx := FCheckSize.cx - FCheckBorderOffset * 2;
|
|
FCheckSize.cy := FCheckSize.cy - FCheckBorderOffset * 2;
|
|
|
|
ItemHeight := GetItemHeight;
|
|
if Edit.IsOnMeasureItemEventAssigned then
|
|
Style := lbOwnerDrawVariable
|
|
else
|
|
Style := lbOwnerDrawFixed;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.SetItemIndex(const Value: Integer);
|
|
begin
|
|
if not FInternalUpdate then
|
|
inherited SetItemIndex(Value);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.SynchronizeCheckStates(ANewHotCheckIndex,
|
|
ANewPressedIndex: Integer);
|
|
begin
|
|
if ANewHotCheckIndex <> FHotCheckIndex then
|
|
begin
|
|
InvalidateCheck(FHotCheckIndex);
|
|
FHotCheckIndex := ANewHotCheckIndex;
|
|
InvalidateCheck(FHotCheckIndex);
|
|
end;
|
|
if ANewPressedIndex <> FPressedCheckIndex then
|
|
begin
|
|
InvalidateCheck(FPressedCheckIndex);
|
|
FPressedCheckIndex := ANewPressedIndex;
|
|
InvalidateCheck(FPressedCheckIndex);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.UpdateItemState(const AIndex: Integer);
|
|
var
|
|
ACurrentState: TcxCheckBoxState;
|
|
begin
|
|
if Edit.ClickCheck(AIndex) then
|
|
begin
|
|
with Edit.ActiveProperties do
|
|
begin
|
|
ACurrentState := Edit.FStates[AIndex];
|
|
Edit.FStates[AIndex] := FCheckPaintHelper.GetNextState(ACurrentState);
|
|
Edit.SynchronizeEditValue;
|
|
Edit.ModifiedAfterEnter := True;
|
|
end;
|
|
if Edit.ActiveProperties.ImmediatePost and Edit.CanPostEditValue then
|
|
Edit.InternalPostEditValue;
|
|
InvalidateCheck(AIndex);
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxListBox.GetEdit: TcxCustomCheckComboBox;
|
|
begin
|
|
Result := TcxCustomCheckComboBox(inherited Edit);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.LBGetTextLen(var Message: TMessage);
|
|
begin
|
|
Message.Result := 0;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.CMMouseEnter(var Message: TMessage);
|
|
begin
|
|
inherited;
|
|
BeginMouseTracking(Self, GetControlRect(Self), Self);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxListBox.CMMouseLeave(var Message: TMessage);
|
|
begin
|
|
inherited;
|
|
InternalMouseMove([], -1, -1);
|
|
EndMouseTracking(Self);
|
|
end;
|
|
|
|
{ TcxCheckComboBoxLookupData }
|
|
|
|
procedure TcxCheckComboBoxLookupData.TextChanged;
|
|
begin
|
|
end;
|
|
|
|
function TcxCheckComboBoxLookupData.GetListBoxClass: TcxCustomEditListBoxClass;
|
|
begin
|
|
Result := TcxCustomCheckComboBoxListBox;
|
|
end;
|
|
|
|
function TcxCheckComboBoxLookupData.GetItem(Index: Integer): string;
|
|
begin
|
|
with TcxCustomCheckComboBox(Edit).ActiveProperties do
|
|
if (Index > -1) and (Index < Items.Count) then
|
|
Result := Items[Index].Description
|
|
else
|
|
Result := ''
|
|
end;
|
|
|
|
function TcxCheckComboBoxLookupData.GetItemCount: Integer;
|
|
begin
|
|
Result := TcxCustomCheckComboBox(Edit).ActiveProperties.Items.Count;
|
|
end;
|
|
|
|
{ TcxCheckComboBox }
|
|
|
|
class function TcxCheckComboBox.GetPropertiesClass: TcxCustomEditPropertiesClass;
|
|
begin
|
|
Result := TcxCheckComboBoxProperties;
|
|
end;
|
|
|
|
function TcxCheckComboBox.GetActiveProperties: TcxCheckComboBoxProperties;
|
|
begin
|
|
Result := TcxCheckComboBoxProperties(InternalGetActiveProperties);
|
|
end;
|
|
|
|
function TcxCheckComboBox.GetProperties: TcxCheckComboBoxProperties;
|
|
begin
|
|
Result := TcxCheckComboBoxProperties(FProperties);
|
|
end;
|
|
|
|
procedure TcxCheckComboBox.SetProperties(Value: TcxCheckComboBoxProperties);
|
|
begin
|
|
FProperties.Assign(Value);
|
|
end;
|
|
|
|
{ TcxCheckPaintHelper }
|
|
|
|
constructor TcxCheckPaintHelper.Create(AOwner : TPersistent);
|
|
begin
|
|
inherited;
|
|
FStyle := TcxCustomEditStyle.Create(Self, False);
|
|
end;
|
|
|
|
destructor TcxCheckPaintHelper.Destroy;
|
|
begin
|
|
FreeAndNil(FStyle);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TcxCheckPaintHelper.SetStyle(Value: TcxCustomEditStyle);
|
|
begin
|
|
FStyle.Assign(Value);
|
|
end;
|
|
|
|
function TcxCheckPaintHelper.GetNextState(Value: TcxCheckBoxState): TcxCheckBoxState;
|
|
begin
|
|
case Value of
|
|
cbsChecked:
|
|
Result := cbsUnchecked;
|
|
cbsGrayed:
|
|
Result := cbsUnchecked;
|
|
else
|
|
Result := cbsChecked;
|
|
end;
|
|
end;
|
|
|
|
function TcxCheckPaintHelper.GetCheckWidth: Integer;
|
|
begin
|
|
Result := 13;
|
|
end;
|
|
|
|
function TcxCheckPaintHelper.CalcTextRect(const ARect: TRect;
|
|
const ACheckState: TcxCheckBoxState): TRect;
|
|
begin
|
|
Result := ARect;
|
|
Inc(Result.Left, RectHeight(ARect) + 2);
|
|
end;
|
|
|
|
function TcxCheckPaintHelper.CalcCheckPoint(const ARect: TRect;
|
|
const ACheckState: TcxCheckBoxState): TPoint;
|
|
var
|
|
FCenterPos : Integer;
|
|
begin
|
|
FCenterPos := CalcCenterPosHeight(ARect, GetCheckWidth);
|
|
Result.X := ARect.Left + FCenterPos;
|
|
Result.Y := ARect.Top + FCenterPos;
|
|
end;
|
|
|
|
function TcxCheckPaintHelper.IsClickInCheck(const AItemRect: TRect;
|
|
const ACheckState: TcxCheckBoxState; X, Y: Integer;
|
|
const AUseRightToLeftAlignment: Boolean = False): Boolean;
|
|
var
|
|
FCheckRect : TRect;
|
|
FCenterPos : Integer;
|
|
begin
|
|
FCenterPos := CalcCenterPosHeight(AItemRect, GetCheckWidth);
|
|
if not AUseRightToLeftAlignment then
|
|
FCheckRect := Bounds(AItemRect.Left + FCenterPos, AItemRect.Top + FCenterPos,
|
|
GetCheckWidth, GetCheckWidth)
|
|
else
|
|
FCheckRect := Bounds(AItemRect.Right - (FCenterPos * 3), AItemRect.Top + FCenterPos,
|
|
GetCheckWidth, GetCheckWidth);
|
|
Result := (X >= FCheckRect.Left) and (X <= FCheckRect.Right) and
|
|
(Y >= FCheckRect.Top) and (Y <= FCheckRect.Bottom);
|
|
end;
|
|
|
|
{ TcxCustomCheckComboBoxProperties }
|
|
|
|
constructor TcxCustomCheckComboBoxProperties.Create(AOwner: TPersistent);
|
|
begin
|
|
inherited Create(AOwner);
|
|
DropDownListStyle := lsFixedList;
|
|
FDelimiter := cxCheckComboValuesDelimiter;
|
|
FEditValueFormat := cvfInteger;
|
|
FShowEmptyText := True;
|
|
FEmptySelectionText := cxGetResourceString(@cxSCheckComboBoxEmptySelectionText);
|
|
FCheckPaintHelper := TcxCheckPaintHelper.Create(nil);
|
|
FItems := TcxCheckComboBoxItems.Create(Self, TcxCheckComboBoxItem);
|
|
FItems.OnChange := ItemsChanged;
|
|
FGlyphCount := 6;
|
|
end;
|
|
|
|
destructor TcxCustomCheckComboBoxProperties.Destroy;
|
|
begin
|
|
FreeAndNil(FItems);
|
|
FreeAndNil(FCheckPaintHelper);
|
|
if Assigned(FGlyph) then FreeAndNil(FGlyph);
|
|
inherited;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.GetGlyph: TBitmap;
|
|
begin
|
|
if FGlyph = nil then
|
|
begin
|
|
FGlyph := TBitmap.Create;
|
|
FGlyph.OnChange := GlyphChanged;
|
|
end;
|
|
Result := FGlyph;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.GlyphChanged(Sender: TObject);
|
|
begin
|
|
Changed;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.IsDelimiterStored: Boolean;
|
|
begin
|
|
Result := FDelimiter <> cxCheckComboValuesDelimiter;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.IsEmptySelectionTextStored: Boolean;
|
|
begin
|
|
Result := FEmptySelectionText <>
|
|
cxGetResourceString(@cxSCheckComboBoxEmptySelectionText);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.SetGlyph(Value: TBitmap);
|
|
begin
|
|
if Value = nil then
|
|
FreeAndNil(FGlyph)
|
|
else
|
|
Glyph.Assign(Value);
|
|
Changed;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.SetGlyphCount(Value: Integer);
|
|
begin
|
|
if FGlyphCount <> Value then
|
|
begin
|
|
FGlyphCount := Value;
|
|
if FGlyph <> nil then
|
|
Changed;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.Assign(Source: TPersistent);
|
|
begin
|
|
if Source is TcxCustomCheckComboBoxProperties then
|
|
begin
|
|
BeginUpdate;
|
|
try
|
|
inherited Assign(Source);
|
|
with TcxCustomCheckComboBoxProperties(Source) do
|
|
begin
|
|
Self.Delimiter := Delimiter;
|
|
Self.EditValueFormat := EditValueFormat;
|
|
Self.Glyph := Glyph;
|
|
Self.GlyphCount := GlyphCount;
|
|
Self.ShowEmptyText := ShowEmptyText;
|
|
Self.EmptySelectionText := EmptySelectionText;
|
|
Self.Items.Assign(Items);
|
|
Self.OnClickCheck := OnClickCheck;
|
|
Self.OnEditValueToStates := OnEditValueToStates;
|
|
Self.OnStatesToEditValue := OnStatesToEditValue;
|
|
end;
|
|
finally
|
|
EndUpdate;
|
|
end
|
|
end
|
|
else
|
|
inherited Assign(Source);
|
|
end;
|
|
|
|
class function TcxCustomCheckComboBoxProperties.GetContainerClass: TcxContainerClass;
|
|
begin
|
|
Result := TcxCheckComboBox;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.GetEditValueSource(AEditFocused: Boolean): TcxDataEditValueSource;
|
|
begin
|
|
Result := evsValue;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.GetSupportedOperations: TcxEditSupportedOperations;
|
|
begin
|
|
Result := inherited GetSupportedOperations;
|
|
Include(Result, esoSortingByDisplayText);
|
|
end;
|
|
|
|
class function TcxCustomCheckComboBoxProperties.GetLookupDataClass: TcxInterfacedPersistentClass;
|
|
begin
|
|
Result := TcxCheckComboBoxLookupData;
|
|
end;
|
|
|
|
class function TcxCustomCheckComboBoxProperties.GetPopupWindowClass: TcxCustomEditPopupWindowClass;
|
|
begin
|
|
Result := TcxCheckComboBoxPopupWindow;
|
|
end;
|
|
|
|
class function TcxCustomCheckComboBoxProperties.GetViewDataClass: TcxCustomEditViewDataClass;
|
|
begin
|
|
Result := TcxCustomCheckComboBoxViewData;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.HasDisplayValue: Boolean;
|
|
begin
|
|
Result := False;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.SetDelimiter(Value: string);
|
|
begin
|
|
if FDelimiter <> Value then
|
|
begin
|
|
FDelimiter := Value;
|
|
Changed;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.SetEditValueFormat(Value: TcxCheckStatesValueFormat);
|
|
begin
|
|
if Value <> FEditValueFormat then
|
|
begin
|
|
FEditValueFormat := Value;
|
|
Items.InternalNotify(nil, -1, copChanged);
|
|
CheckEditValueFormat;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.SetEmptySelectionText(Value: string);
|
|
begin
|
|
if FEmptySelectionText <> Value then
|
|
begin
|
|
FEmptySelectionText := Value;
|
|
Changed;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.SetShowEmptyText(Value: Boolean);
|
|
begin
|
|
if FShowEmptyText <> Value then
|
|
begin
|
|
FShowEmptyText := Value;
|
|
Changed;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.SetItems(const Value: TcxCheckComboBoxItems);
|
|
begin
|
|
FItems.Assign(Value);
|
|
Changed;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.CheckEditValueFormat;
|
|
begin
|
|
if (GetRealEditValueFormat = cvfInteger) and (Items.Count > 64) then
|
|
raise EdxException.Create(cxGetResourceString(@cxSCheckControlIncorrectItemCount));
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.GetRealEditValueFormat: TcxCheckStatesValueFormatEx;
|
|
begin
|
|
if Assigned(OnEditValueToStates) and Assigned(OnStatesToEditValue) then
|
|
Result := cvfCustom
|
|
else
|
|
Result := EditValueFormat;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.ItemsChanged(Sender: TObject; AItem: TCollectionItem);
|
|
begin
|
|
CheckEditValueFormat;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.CalculateCheckStatesByEditValue(
|
|
Sender: TObject; const AEditValue: TcxEditValue; var ACheckStates: TcxCheckStates);
|
|
begin
|
|
if Assigned(OnEditValueToStates) then
|
|
begin
|
|
SetLength(ACheckStates, Items.Count);
|
|
OnEditValueToStates(Sender, AEditValue, ACheckStates)
|
|
end
|
|
else
|
|
cxCheckBox.CalculateCheckStates(AEditValue, Items, EditValueFormat,
|
|
ACheckStates);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.CalculateDisplayValueByCheckStates(
|
|
const ACheckStates: TcxCheckStates): string;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
Result := '';
|
|
for I := 0 to Items.Count - 1 do
|
|
begin
|
|
if ACheckStates[I] <> cbsChecked then
|
|
Continue;
|
|
if Result <> '' then
|
|
Result := Result + FDelimiter;
|
|
Result := Result + Items[I].GetDisplayDescription;
|
|
end;
|
|
if (Result = '') and ShowEmptyText then
|
|
Result := EmptySelectionText;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.CalculateEditValueByCheckStates(
|
|
Sender: TObject; const ACheckStates: TcxCheckStates): TcxEditValue;
|
|
begin
|
|
if Assigned(OnStatesToEditValue) then
|
|
OnStatesToEditValue(Sender, ACheckStates, Result)
|
|
else
|
|
Result := cxCheckBox.CalculateCheckStatesValue(ACheckStates, Items,
|
|
EditValueFormat);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBoxProperties.IsEditValueValid(var EditValue: TcxEditValue;
|
|
AEditFocused: Boolean): Boolean;
|
|
begin
|
|
Result := True;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBoxProperties.PrepareDisplayValue(
|
|
const AEditValue: TcxEditValue; var DisplayValue: TcxEditValue; AEditFocused: Boolean);
|
|
begin
|
|
CalculateCheckStatesByEditValue(nil, AEditValue, CheckStates);
|
|
DisplayValue := CalculateDisplayValueByCheckStates(CheckStates);
|
|
end;
|
|
|
|
{ TcxCustomCheckComboBox }
|
|
|
|
class function TcxCustomCheckComboBox.GetPropertiesClass: TcxCustomEditPropertiesClass;
|
|
begin
|
|
Result := TcxCustomCheckComboBoxProperties;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.GetItemState(AIndex: Integer): TcxCheckBoxState;
|
|
begin
|
|
Result := FStates[AIndex];
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.SetItemState(AIndex: Integer; AState: TcxCheckBoxState);
|
|
begin
|
|
if AState = cbsGrayed then Exit;
|
|
if FStates[AIndex] <> AState then
|
|
begin
|
|
FStates[AIndex] := AState;
|
|
SynchronizeEditValue;
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.ClickCheck(AItemIndex: Integer): Boolean;
|
|
begin
|
|
Result := CanModify and DoClickCheck(AItemIndex) and DoEditing;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.DoClickCheck(AItemIndex: Integer): Boolean;
|
|
|
|
function InternalDoClickCheck(AProperties: TcxCustomCheckComboBoxProperties;
|
|
AItemIndex: Integer): Boolean;
|
|
begin
|
|
Result := True;
|
|
if Assigned(AProperties.OnClickCheck) then
|
|
AProperties.OnClickCheck(Self, AItemIndex, Result);
|
|
end;
|
|
|
|
var
|
|
AAllowToggle1, AAllowToggle2: Boolean;
|
|
begin
|
|
AAllowToggle1 := InternalDoClickCheck(Properties, AItemIndex);
|
|
if RepositoryItem <> nil then
|
|
AAllowToggle2 := InternalDoClickCheck(
|
|
TcxCustomCheckComboBoxProperties(RepositoryItem.Properties), AItemIndex)
|
|
else
|
|
AAllowToggle2 := True;
|
|
Result := AAllowToggle1 and AAllowToggle2;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.GetEditingValue: TcxEditValue;
|
|
begin
|
|
Result := EditValue;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.HandleSelectItem(Sender: TObject);
|
|
begin
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.Initialize;
|
|
begin
|
|
inherited Initialize;
|
|
FEditValue := 0;
|
|
ControlStyle := ControlStyle - [csClickEvents];
|
|
CalculateDrawCheckParams;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.InitializePopupWindow;
|
|
begin
|
|
inherited InitializePopupWindow;
|
|
(PopupWindow as TcxCheckComboBoxPopupWindow).SysPanelStyle := ActiveProperties.PopupSizeable;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.InternalGetText: string;
|
|
begin
|
|
if IsDestroying then
|
|
Result := ''
|
|
else
|
|
Result := ViewInfo.Text;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.InternalSetText(const Value: string): Boolean;
|
|
begin
|
|
Result := False;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.InternalValidateDisplayValue(const ADisplayValue: TcxEditValue);
|
|
begin
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.IsEditValueStored: Boolean;
|
|
begin
|
|
Result := (ActiveProperties.EditValueFormat = cvfInteger) and (EditValue <> 0) or
|
|
(ActiveProperties.EditValueFormat <> cvfInteger) and (VarToStr(EditValue) <> '');
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.KeyPress(var Key: Char);
|
|
begin
|
|
if (Key = Char(VK_SPACE)) and HasPopupWindow then
|
|
begin
|
|
if Assigned(OnKeyPress) then
|
|
OnKeyPress(Self, Key);
|
|
(LookupData.ActiveControl as TcxCustomCheckComboBoxListBox).KeyPress(Key)
|
|
end
|
|
else
|
|
inherited KeyPress(Key);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.CloseUp(AReason: TcxEditCloseUpReason);
|
|
begin
|
|
if HasPopupWindow then
|
|
begin
|
|
FCloseUpReason := AReason;
|
|
PopupWindow.CloseUp;
|
|
if not ActiveProperties.AlwaysPostEditValue and ActiveProperties.ImmediatePost and
|
|
CanPostEditValue and ValidateEdit(True) then
|
|
InternalPostEditValue;
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.GetProperties: TcxCustomCheckComboBoxProperties;
|
|
begin
|
|
Result := TcxCustomCheckComboBoxProperties(FProperties);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.GetActiveProperties: TcxCustomCheckComboBoxProperties;
|
|
begin
|
|
Result := TcxCustomCheckComboBoxProperties(InternalGetActiveProperties);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.GetLookupData: TcxCheckComboBoxLookupData;
|
|
begin
|
|
Result := TcxCheckComboBoxLookupData(FLookupData);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.SetProperties(Value: TcxCustomCheckComboBoxProperties);
|
|
begin
|
|
FProperties.Assign(Value);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.CalculateDrawCheckParams;
|
|
const
|
|
ABorderStyleMap: array[TcxLookAndFeelKind] of TcxEditCheckBoxBorderStyle =
|
|
(ebsFlat, ebs3D, ebsUltraFlat, ebsOffice11);
|
|
begin
|
|
with PopupControlsLookAndFeel do
|
|
begin
|
|
FNativeStyle := NativeStyle and AreVisualStylesAvailable([totButton, totComboBox]);
|
|
if not FNativeStyle then
|
|
FCheckBorderStyle := ABorderStyleMap[Kind];
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.GetValue: Variant;
|
|
begin
|
|
Result := EditValue;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.PopupControlsLookAndFeelChanged(
|
|
Sender: TcxLookAndFeel; AChangedValues: TcxLookAndFeelValues);
|
|
begin
|
|
inherited PopupControlsLookAndFeelChanged(Sender, AChangedValues);
|
|
if not IsDestroying then
|
|
CalculateDrawCheckParams;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.PopupWindowShowed(Sender: TObject);
|
|
begin
|
|
inherited PopupWindowShowed(Sender);
|
|
TcxCustomCheckComboBoxListBox(ILookupData.ActiveControl).CheckHotTrack;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.PropertiesChanged(Sender: TObject);
|
|
begin
|
|
with ActiveProperties.Items do
|
|
if ItemChanged and (ChangedItemOperation = copDelete) and (ChangedItemIndex < Length(FStates) - 1) then
|
|
Move(FStates[ChangedItemIndex + 1], FStates[ChangedItemIndex],
|
|
(ActiveProperties.Items.Count - 1 - ChangedItemIndex) * SizeOf(TcxCheckBoxState));
|
|
SetLength(FStates, ActiveProperties.Items.Count);
|
|
|
|
inherited PropertiesChanged(Sender);
|
|
|
|
if ModifiedAfterEnter then
|
|
UpdateDrawValue
|
|
else
|
|
if IsDBEdit then
|
|
SynchronizeDisplayValue
|
|
else
|
|
EditValue := ActiveProperties.CalculateEditValueByCheckStates(
|
|
GetStandaloneEventSender(Self), FStates);
|
|
end;
|
|
|
|
function TcxCustomCheckComboBox.DoRefreshContainer(const P: TPoint;
|
|
Button: TcxMouseButton; Shift: TShiftState; AIsMouseEvent: Boolean): Boolean;
|
|
begin
|
|
Result := inherited DoRefreshContainer(P, Button, Shift, AIsMouseEvent);
|
|
ActiveProperties.FCheckPaintHelper.Style.Assign(ActiveStyle);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.SetItemIndex(Value: Integer);
|
|
begin
|
|
LookupData.InternalSetCurrentKey(Value);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.SetValue(const AValue: Variant);
|
|
begin
|
|
InternalEditValue := AValue;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.SynchronizeDisplayValue;
|
|
begin
|
|
ActiveProperties.CalculateCheckStatesByEditValue(
|
|
GetStandaloneEventSender(Self), EditValue, FStates);
|
|
UpdateDrawValue;
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.SynchronizeEditValue;
|
|
begin
|
|
InternalEditValue := ActiveProperties.CalculateEditValueByCheckStates(
|
|
GetStandaloneEventSender(Self), FStates);
|
|
end;
|
|
|
|
procedure TcxCustomCheckComboBox.UpdateDrawValue;
|
|
begin
|
|
TcxCustomTextEditViewInfo(ViewInfo).SelLength := 0;
|
|
TcxCustomTextEditViewInfo(ViewInfo).Text :=
|
|
ActiveProperties.CalculateDisplayValueByCheckStates(FStates);
|
|
with TcxCustomTextEditViewInfo(ViewInfo) do
|
|
Self.ActiveProperties.DisplayValueToDisplayText(Text);
|
|
with TcxCustomTextEditViewInfo(ViewInfo) do
|
|
TextOutData.Initialized := False;
|
|
InvalidateRect(TcxCustomTextEditViewInfo(ViewInfo).ClientRect, False);
|
|
end;
|
|
|
|
{ TcxFilterChecksHelper }
|
|
|
|
class function TcxFilterChecksHelper.GetFilterEditClass: TcxCustomEditClass;
|
|
begin
|
|
Result := TcxCheckComboBox;
|
|
end;
|
|
|
|
class function TcxFilterChecksHelper.GetSupportedFilterOperators(
|
|
AProperties: TcxCustomEditProperties; AValueTypeClass: TcxValueTypeClass;
|
|
AExtendedSet: Boolean = False): TcxFilterControlOperators;
|
|
begin
|
|
Result := [fcoEqual, fcoNotEqual, fcoBlanks, fcoNonBlanks];
|
|
if AExtendedSet then
|
|
Result := Result + [fcoInList, fcoNotInList];
|
|
end;
|
|
|
|
class procedure TcxFilterChecksHelper.InitializeProperties(AProperties,
|
|
AEditProperties: TcxCustomEditProperties; AHasButtons: Boolean);
|
|
begin
|
|
inherited InitializeProperties(AProperties, AEditProperties, AHasButtons);
|
|
TcxCustomCheckComboBoxProperties(AProperties).EditValueFormat :=
|
|
GetEditValueFormat(AEditProperties);
|
|
with TcxCustomCheckComboBoxProperties(AProperties) do
|
|
begin
|
|
Items.Clear;
|
|
Buttons.Clear;
|
|
Buttons.Add;
|
|
Buttons[0].Kind := bkDown;
|
|
DropDownListStyle := lsFixedList;
|
|
end;
|
|
InitializeItems(AProperties, AEditProperties);
|
|
end;
|
|
|
|
class function TcxFilterChecksHelper.GetEditValueFormat(
|
|
AEditProperties: TcxCustomEditProperties): TcxCheckStatesValueFormat;
|
|
begin
|
|
Result := cvfCaptions;
|
|
end;
|
|
|
|
class function TcxFilterChecksHelper.GetItems(
|
|
AEditProperties: TcxCustomEditProperties): IcxCheckItems;
|
|
begin
|
|
Result := nil;
|
|
end;
|
|
|
|
class procedure TcxFilterChecksHelper.InitializeItems(AProperties,
|
|
AEditProperties: TcxCustomEditProperties);
|
|
var
|
|
AItems: IcxCheckItems;
|
|
I: Integer;
|
|
begin
|
|
AItems := GetItems(AEditProperties);
|
|
if AItems = nil then
|
|
Exit;
|
|
for I := 0 to AItems.Count - 1 do
|
|
TcxCustomCheckComboBoxProperties(AProperties).Items.Add.Description :=
|
|
AItems.Captions[I];
|
|
end;
|
|
|
|
{ TcxFilterCheckComboBoxHelper }
|
|
|
|
class function TcxFilterCheckComboBoxHelper.GetEditValueFormat(
|
|
AEditProperties: TcxCustomEditProperties): TcxCheckStatesValueFormat;
|
|
begin
|
|
Result := TcxCustomCheckComboBoxProperties(AEditProperties).EditValueFormat
|
|
end;
|
|
|
|
class function TcxFilterCheckComboBoxHelper.GetItems(
|
|
AEditProperties: TcxCustomEditProperties): IcxCheckItems;
|
|
begin
|
|
Result := TcxCustomCheckComboBoxProperties(AEditProperties).Items;
|
|
end;
|
|
|
|
initialization
|
|
GetRegisteredEditProperties.Register(TcxCheckComboBoxProperties, scxSEditRepositoryCheckComboBox);
|
|
FilterEditsController.Register(TcxCheckComboBoxProperties, TcxFilterCheckComboBoxHelper);
|
|
|
|
finalization
|
|
FilterEditsController.Unregister(TcxCheckComboBoxProperties, TcxFilterCheckComboBoxHelper);
|
|
GetRegisteredEditProperties.Unregister(TcxCheckComboBoxProperties);
|
|
|
|
end.
|