roberto
f040ff20cd
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.DevExpressVCL@63 05c56307-c608-d34a-929d-697000501d7a
1873 lines
58 KiB
ObjectPascal
1873 lines
58 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 cxNavigator;
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{$I cxVer.inc}
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interface
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uses
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{$IFDEF DELPHI6}
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Types,
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{$ENDIF}
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Messages, Windows, Classes, Controls, Forms, Graphics, ImgList,
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StdCtrls, SysUtils, cxClasses, cxContainer, cxControls, cxFilter, cxGraphics,
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cxLookAndFeels, cxLookAndFeelPainters, dxThemeManager;
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const
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NavigatorButtonCount = 16;
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NBDI_FIRST = 0;
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NBDI_PRIORPAGE = 1;
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NBDI_PRIOR = 2;
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NBDI_NEXT = 3;
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NBDI_NEXTPAGE = 4;
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NBDI_LAST = 5;
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NBDI_INSERT = 6;
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NBDI_APPEND = 7;
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NBDI_DELETE = 8;
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NBDI_EDIT = 9;
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NBDI_POST = 10;
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NBDI_CANCEL = 11;
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NBDI_REFRESH = 12;
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NBDI_SAVEBOOKMARK = 13;
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NBDI_GOTOBOOKMARK = 14;
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NBDI_FILTER = 15;
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type
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TcxCustomNavigatorButtons = class;
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TcxNavigatorChangeType = (nctProperties, nctSize, nctLayout);
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IcxNavigatorOwner = interface
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['{504B7F43-8847-46C5-B84A-C24F8E5E61A6}']
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procedure NavigatorChanged(AChangeType: TcxNavigatorChangeType);
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function GetNavigatorBounds: TRect;
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function GetNavigatorButtons: TcxCustomNavigatorButtons;
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function GetNavigatorCanvas: TCanvas;
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function GetNavigatorControl: TWinControl;
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function GetNavigatorFocused: Boolean;
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function GetNavigatorLookAndFeel: TcxLookAndFeel;
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function GetNavigatorOwner: TComponent;
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function GetNavigatorShowHint: Boolean;
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function GetNavigatorTabStop: Boolean;
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procedure NavigatorButtonsStateChanged;
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procedure RefreshNavigator;
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end;
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TcxNavigatorButton = class(TPersistent)
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private
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FButtons: TcxCustomNavigatorButtons;
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FDefaultIndex: Integer;
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FDefaultVisible: Boolean;
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FEnabled: Boolean;
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FHint: string;
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FImageIndex: TImageIndex;
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FIsVisibleAssigned: Boolean;
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FVisible: Boolean;
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FOnClick: TNotifyEvent;
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function GetInternalImageIndex: Integer;
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function GetIternalImages: TCustomImageList;
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procedure InternalSetVisible(Value: Boolean; AIsInternalSetting: Boolean = True);
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function IsVisibleStored: Boolean;
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procedure SetEnabled(const Value: Boolean);
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procedure SetHint(const Value: string);
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procedure SetImageIndex(Value: TImageIndex);
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procedure SetOnClick(const Value: TNotifyEvent);
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procedure SetVisible(const Value: Boolean);
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protected
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function GetOwner: TPersistent; override;
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function GetInternalEnabled: Boolean;
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function GetInternalHint: string;
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function IsUserImageListUsed: Boolean;
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procedure DoClick; dynamic;
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procedure RestoreDefaultVisible(ACanBeVisible: Boolean);
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function GetNavigator: IcxNavigatorOwner;
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property DefaultIndex: Integer read FDefaultIndex write FDefaultIndex;
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property InternalImageIndex: Integer read GetInternalImageIndex;
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property InternalImages: TCustomImageList read GetIternalImages;
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public
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constructor Create(AButtons: TcxCustomNavigatorButtons;
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ADefaultVisible: Boolean);
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procedure Assign(Source: TPersistent); override;
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procedure Click;
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function GetImageSize: TSize;
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property Buttons: TcxCustomNavigatorButtons read FButtons;
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property Navigator: IcxNavigatorOwner read GetNavigator;
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property OnClick: TNotifyEvent read FOnClick write SetOnClick;
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published
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property Enabled: Boolean read FEnabled write SetEnabled default True;
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property Hint: string read FHint write SetHint;
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property ImageIndex: TImageIndex read FImageIndex write SetImageIndex default -1;
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property Visible: Boolean read FVisible write SetVisible stored IsVisibleStored;
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end;
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TcxCustomNavigator = class;
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TcxNavigatorButtonClickEvent = procedure(Sender: TObject; AButtonIndex: Integer;
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var ADone: Boolean) of object;
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TcxCustomNavigatorButtons = class(TPersistent)
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private
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FNavigator: IcxNavigatorOwner;
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FButtons: array [0 .. NavigatorButtonCount - 1] of TcxNavigatorButton;
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FImages: TCustomImageList;
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FImageChangeLink: TChangeLink;
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FConfirmDelete: Boolean;
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FOnButtonClick: TcxNavigatorButtonClickEvent;
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function GetButton(Index: Integer): TcxNavigatorButton;
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function GetButtonCount: Integer;
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function GetDefaultImages: TCustomImageList;
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procedure SetButton(Index: Integer; const Value: TcxNavigatorButton);
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procedure SetConfirmDelete(const Value: Boolean);
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procedure SetImages(const Value: TCustomImageList);
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procedure SetOnButtonClick(const Value: TcxNavigatorButtonClickEvent);
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procedure ImageListChange(Sender: TObject);
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protected
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function GetOwner: TPersistent; override;
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procedure CreateButtons; virtual;
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procedure DestroyButtons; virtual;
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procedure DoButtonClick(ADefaultIndex: Integer); virtual;
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function GetButtonEnabled(ADefaultIndex: Integer): Boolean; virtual;
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function GetButtonHint(ADefaultIndex: Integer): string; virtual;
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function GetButtonImageOffset: Integer; virtual;
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function IsNavigatorEnabled: Boolean;
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property ConfirmDelete: Boolean read FConfirmDelete write SetConfirmDelete default True;
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property First: TcxNavigatorButton index NBDI_FIRST read GetButton write SetButton;
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property PriorPage: TcxNavigatorButton index NBDI_PRIORPAGE read GetButton write SetButton;
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property Prior: TcxNavigatorButton index NBDI_PRIOR read GetButton write SetButton;
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property Next: TcxNavigatorButton index NBDI_NEXT read GetButton write SetButton;
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property NextPage: TcxNavigatorButton index NBDI_NEXTPAGE read GetButton write SetButton;
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property Last: TcxNavigatorButton index NBDI_LAST read GetButton write SetButton;
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property Insert: TcxNavigatorButton index NBDI_INSERT read GetButton write SetButton;
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property Append: TcxNavigatorButton index NBDI_APPEND read GetButton write SetButton;
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property Delete: TcxNavigatorButton index NBDI_DELETE read GetButton write SetButton;
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property Edit: TcxNavigatorButton index NBDI_EDIT read GetButton write SetButton;
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property Post: TcxNavigatorButton index NBDI_POST read GetButton write SetButton;
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property Cancel: TcxNavigatorButton index NBDI_CANCEL read GetButton write SetButton;
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property Refresh: TcxNavigatorButton index NBDI_REFRESH read GetButton write SetButton;
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property SaveBookmark: TcxNavigatorButton index NBDI_SAVEBOOKMARK read GetButton write SetButton;
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property GotoBookmark: TcxNavigatorButton index NBDI_GOTOBOOKMARK read GetButton write SetButton;
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property Filter: TcxNavigatorButton index NBDI_FILTER read GetButton write SetButton;
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public
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constructor Create(ANavigator: IcxNavigatorOwner); virtual;
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destructor Destroy; override;
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procedure Assign(Source: TPersistent); override;
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procedure ClickButton(Index: Integer);
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procedure ReleaseBookmark; virtual;
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property ButtonCount: Integer read GetButtonCount;
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property Buttons[Index: Integer]: TcxNavigatorButton read GetButton; default;
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property DefaultImages: TCustomImageList read GetDefaultImages;
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property Images: TCustomImageList read FImages write SetImages;
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property Navigator: IcxNavigatorOwner read FNavigator;
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published
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property OnButtonClick: TcxNavigatorButtonClickEvent read FOnButtonClick
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write SetOnButtonClick;
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end;
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TcxNavigatorButtonViewInfo = class
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public
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Button: TcxNavigatorButton;
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Bounds: TRect;
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Enabled: Boolean;
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Hint: string;
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end;
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TcxNavigatorViewInfo = class
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private
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FButtonPressTimer: TcxTimer;
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FButtons: TList;
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FCanvas: TcxCanvas;
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FFocusedButton: TcxNavigatorButton;
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FHintTimer: TcxTimer;
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FHintWindow: THintWindow;
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FHintWindowShowing: Boolean;
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FHotTrackButtonViewInfo: TcxNavigatorButtonViewInfo;
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FIsDirty: Boolean;
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FIsInplace: Boolean;
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FIsSelected: Boolean;
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FNavigator: IcxNavigatorOwner;
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FPressedButtonViewInfo: TcxNavigatorButtonViewInfo;
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function GetButton(Index: Integer): TcxNavigatorButtonViewInfo;
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function GetButtonCount: Integer;
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function GetFocusedButton: TcxNavigatorButtonViewInfo;
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procedure SetFocusedButton(Value: TcxNavigatorButtonViewInfo);
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function StopButtonPressTimerIfLeftMouseReleased: Boolean;
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procedure DoButtonPressTimer(Sender: TObject);
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procedure DoHintTimer(Sender: TObject);
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procedure UpdateSelected;
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protected
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function GetButtonBorderExtent(APainter: TcxCustomLookAndFeelPainterClass;
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AButtonIndex, AButtonCount: Integer): TRect;
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function GetButtonState(AButton: TcxNavigatorButtonViewInfo): TcxButtonState;
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function GetMiddleButtonBorderExtent(APainter: TcxCustomLookAndFeelPainterClass): TRect;
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function GetMinButtonSize(AButtonIndex, AButtonCount: Integer;
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AAutoHeight: Boolean = False): TSize;
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function GetVisibleButtonCount: Integer;
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procedure InvalidateButton(AButton: TcxNavigatorButtonViewInfo);
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procedure PaintButton(AButtonIndex: Integer);
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procedure HintActivate(AShow: Boolean);
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property Canvas: TcxCanvas read FCanvas;
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property FocusedButton: TcxNavigatorButtonViewInfo read GetFocusedButton
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write SetFocusedButton;
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property HotTrackButtonViewInfo: TcxNavigatorButtonViewInfo
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read FHotTrackButtonViewInfo write FHotTrackButtonViewInfo;
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property Navigator: IcxNavigatorOwner read FNavigator;
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property PressedButtonViewInfo: TcxNavigatorButtonViewInfo
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read FPressedButtonViewInfo write FPressedButtonViewInfo;
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public
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constructor Create(ANavigator: IcxNavigatorOwner;
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AIsInplace: Boolean = True); virtual;
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destructor Destroy; override;
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procedure Calculate;
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procedure CheckSize(var AWidth, AHeight: Integer;
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ACheckMinHeight: Boolean = False);
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procedure Clear;
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procedure DoEnter;
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procedure DoExit;
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function GetButtonAt(const pt: TPoint): TcxNavigatorButton;
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function GetButtonViewInfoAt(const pt: TPoint): TcxNavigatorButtonViewInfo;
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function GetButtonViewInfoByButton(AButton: TcxNavigatorButton): TcxNavigatorButtonViewInfo;
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procedure MakeIsDirty;
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procedure MouseDown(X, Y: Integer);
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procedure MouseMove(X, Y: Integer);
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procedure MouseUp(X, Y: Integer);
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procedure Paint;
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procedure PressArrowKey(ALeftKey: Boolean);
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procedure UpdateButtonsEnabled;
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property ButtonCount: Integer read GetButtonCount;
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property Buttons[Index: Integer]: TcxNavigatorButtonViewInfo read GetButton;
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end;
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TcxNavigatorViewInfoClass = class of TcxNavigatorViewInfo;
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TcxCustomNavigator = class(TcxControl, IUnknown,
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IcxNavigatorOwner, IcxMouseTrackingCaller, IdxSkinSupport)
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private
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FButtons: TcxCustomNavigatorButtons;
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FButtonsEvents: TNotifyEvent;
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FViewInfo: TcxNavigatorViewInfo;
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procedure WMGetDlgCode(var Message: TWMGetDlgCode); message WM_GETDLGCODE;
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procedure CMEnabledChanged(var Message: TMessage); message CM_ENABLEDCHANGED;
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procedure CMHintShow(var Message: TCMHintShow); message CM_HINTSHOW;
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protected
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function CanFocusOnClick: Boolean; override;
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function CanResize(var NewWidth, NewHeight: Integer): Boolean; override;
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function CreateButtons: TcxCustomNavigatorButtons; virtual;
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procedure DoEnter; override;
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procedure DoExit; override;
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procedure EnabledChanged; dynamic;
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procedure KeyDown(var Key: Word; Shift: TShiftState); 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 MouseEnter(AControl: TControl); override;
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procedure MouseLeave(AControl: TControl); 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 Paint; override;
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//IcxMouseTrackingCaller
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procedure IcxMouseTrackingCaller.MouseLeave = NavigatorMouseLeave;
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procedure NavigatorMouseLeave;
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// IcxNavigatorOwner
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procedure NavigatorChanged(AChangeType: TcxNavigatorChangeType);
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function GetNavigatorBounds: TRect;
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function GetNavigatorButtons: TcxCustomNavigatorButtons;
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function GetNavigatorCanvas: TCanvas;
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function GetNavigatorControl: TWinControl;
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function GetNavigatorFocused: Boolean;
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function GetNavigatorLookAndFeel: TcxLookAndFeel;
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function GetNavigatorOwner: TComponent;
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function GetNavigatorShowHint: Boolean;
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function GetNavigatorTabStop: Boolean;
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function GetViewInfoClass: TcxNavigatorViewInfoClass; virtual;
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procedure InitButtons; virtual;
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procedure NavigatorButtonsStateChanged;
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procedure RefreshNavigator;
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procedure CreateWnd; override;
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procedure WndProc(var Message: TMessage); override;
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property CustomButtons: TcxCustomNavigatorButtons read FButtons;
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property ViewInfo: TcxNavigatorViewInfo read FViewInfo;
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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 ClickButton(Index: Integer);
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procedure RestoreButtons;
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property LookAndFeel;
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published
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property TabStop default False;
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property ButtonsEvents: TNotifyEvent read FButtonsEvents
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write FButtonsEvents;
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end;
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TcxNavigatorControlNotifier = class
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private
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FList: TList;
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public
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constructor Create;
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destructor Destroy; override;
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procedure AddNavigator(ANavigator: IcxNavigatorOwner);
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procedure RemoveNavigator(ANavigator: IcxNavigatorOwner);
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procedure RefreshNavigatorButtons;
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end;
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IcxNavigator = interface
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['{A15F80CA-DE56-47CB-B0EB-035D0BF90E9D}']
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function CanAppend: Boolean;
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function CanDelete: Boolean;
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function CanEdit: Boolean;
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function CanInsert: Boolean;
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function IsActive: Boolean;
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function IsBof: Boolean;
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function IsBookmarkAvailable: Boolean;
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function IsEditing: Boolean;
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function IsEof: Boolean;
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procedure ClearBookmark;
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procedure DoAction(AButtonIndex: Integer);
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function GetNotifier: TcxNavigatorControlNotifier;
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function IsActionSupported(AButtonIndex: Integer): Boolean;
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end;
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TcxNavigatorControlButtonsGetControl = function: IcxNavigator of object;
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TcxNavigatorControlButtons = class(TcxCustomNavigatorButtons)
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private
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FOnGetControl: TcxNavigatorControlButtonsGetControl;
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function GetControl: IcxNavigator;
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protected
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procedure DoButtonClick(ADefaultIndex: Integer); override;
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function GetButtonEnabled(ADefaultIndex: Integer): Boolean; override;
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property Control: IcxNavigator read GetControl;
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public
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procedure ReleaseBookmark; override;
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property OnGetControl: TcxNavigatorControlButtonsGetControl
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read FOnGetControl write FOnGetControl;
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published
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property ConfirmDelete;
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property Images;
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property First;
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property PriorPage;
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property Prior;
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property Next;
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property NextPage;
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property Last;
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property Insert;
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property Append;
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property Delete;
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property Edit;
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property Post;
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property Cancel;
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property Refresh;
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property SaveBookmark;
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property GotoBookmark;
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property Filter;
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end;
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TcxNavigatorControlButtonsClass = class of TcxNavigatorControlButtons;
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TcxCustomNavigatorControl = class(TcxCustomNavigator)
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private
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FControl: TComponent;
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function GetButtons: TcxNavigatorControlButtons;
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function GetControl: IcxNavigator;
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procedure SetButtons(Value: TcxNavigatorControlButtons);
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procedure SetControl(Value: TComponent);
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protected
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function CreateButtons: TcxCustomNavigatorButtons; override;
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function GetButtonsClass: TcxNavigatorControlButtonsClass; virtual;
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procedure Notification(AComponent: TComponent; Operation: TOperation); override;
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procedure InitButtons; override;
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property Buttons: TcxNavigatorControlButtons read GetButtons write SetButtons;
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property Control: TComponent read FControl write SetControl;
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public
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destructor Destroy; override;
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end;
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TcxNavigator = class(TcxCustomNavigatorControl)
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published
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property Control;
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property Buttons;
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property LookAndFeel;
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property Align;
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property Anchors;
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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 Ctl3D;
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property ParentCtl3D;
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property ParentShowHint;
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property PopupMenu;
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property ShowHint;
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property TabOrder;
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property TabStop;
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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 OnDblClick;
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property OnDragDrop;
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property OnDragOver;
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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 OnResize;
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property OnStartDock;
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property OnStartDrag;
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end;
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function NavigatorImages: TImageList;
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implementation
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uses
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cxEditPaintUtils, cxEditUtils, cxEditConsts, dxThemeConsts, dxUxTheme, cxGeometry;
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const
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cxInitRepeatPause = 400;
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cxRepeatPause = 100;
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type
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TCustomFormAccess = class(TCustomForm);
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var
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FNavigatorImages: TImageList = nil;
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|
|
function NavigatorImages: TImageList;
|
|
|
|
procedure LoadImageListFromResource(AImageList: TCustomImageList;
|
|
const AResName: string; AMaskColor: TColor);
|
|
begin
|
|
AImageList.GetInstRes(HInstance, rtBitmap, AResName,
|
|
AImageList.Width, [], AMaskColor);
|
|
end;
|
|
|
|
begin
|
|
if FNavigatorImages = nil then
|
|
begin
|
|
FNavigatorImages := TImageList.Create(nil);
|
|
FNavigatorImages.Height := 11;
|
|
FNavigatorImages.Width := 12;
|
|
LoadImageListFromResource(FNavigatorImages, 'CXNAVIGATORBUTTONS', clOlive);
|
|
end;
|
|
Result := FNavigatorImages;
|
|
end;
|
|
|
|
{ TcxNavigatorButton }
|
|
|
|
constructor TcxNavigatorButton.Create(AButtons: TcxCustomNavigatorButtons;
|
|
ADefaultVisible: Boolean);
|
|
begin
|
|
inherited Create;
|
|
FButtons := AButtons;
|
|
FDefaultIndex := -1;
|
|
FDefaultVisible := ADefaultVisible;
|
|
FEnabled := True;
|
|
FImageIndex := -1;
|
|
FVisible := ADefaultVisible;
|
|
end;
|
|
|
|
function TcxNavigatorButton.GetOwner: TPersistent;
|
|
begin
|
|
Result := FButtons;
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.Assign(Source: TPersistent);
|
|
begin
|
|
if Source is TcxNavigatorButton then
|
|
with Source as TcxNavigatorButton do
|
|
begin
|
|
Self.Enabled := Enabled;
|
|
Self.Hint := Hint;
|
|
Self.ImageIndex := ImageIndex;
|
|
Self.Visible := Visible;
|
|
Self.FIsVisibleAssigned := FIsVisibleAssigned;
|
|
Self.OnClick := OnClick;
|
|
end
|
|
else
|
|
inherited Assign(Source);
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.Click;
|
|
begin
|
|
if GetInternalEnabled then
|
|
DoClick;
|
|
end;
|
|
|
|
function TcxNavigatorButton.GetInternalEnabled: Boolean;
|
|
begin
|
|
Result := Enabled;
|
|
if Result then
|
|
Result := Buttons.GetButtonEnabled(DefaultIndex);
|
|
end;
|
|
|
|
function TcxNavigatorButton.GetInternalHint: string;
|
|
begin
|
|
Result := Hint;
|
|
if Hint = '' then
|
|
Result := Buttons.GetButtonHint(DefaultIndex);
|
|
end;
|
|
|
|
function TcxNavigatorButton.IsUserImageListUsed: Boolean;
|
|
begin
|
|
Result := (Buttons.Images <> nil) and (ImageIndex > -1);
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.DoClick;
|
|
var
|
|
ADone: Boolean;
|
|
begin
|
|
if Assigned(OnClick) then
|
|
OnClick(Self)
|
|
else
|
|
begin
|
|
ADone := False;
|
|
if Assigned(Buttons.FOnButtonClick) then
|
|
Buttons.FOnButtonClick(Buttons, DefaultIndex, ADone);
|
|
if not ADone then
|
|
Buttons.DoButtonClick(DefaultIndex);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.RestoreDefaultVisible(ACanBeVisible: Boolean);
|
|
begin
|
|
if not FIsVisibleAssigned then
|
|
InternalSetVisible(FDefaultVisible and ACanBeVisible);
|
|
end;
|
|
|
|
function TcxNavigatorButton.GetImageSize: TSize;
|
|
var
|
|
APainter: TcxCustomLookAndFeelPainterClass;
|
|
begin
|
|
APainter := GetNavigator.GetNavigatorLookAndFeel.SkinPainter;
|
|
if (APainter = nil) or IsUserImageListUsed then
|
|
begin
|
|
Result.cx := InternalImages.Width;
|
|
Result.cy := InternalImages.Height;
|
|
end
|
|
else
|
|
Result := APainter.NavigatorGlyphSize;
|
|
end;
|
|
|
|
function TcxNavigatorButton.GetNavigator: IcxNavigatorOwner;
|
|
begin
|
|
Result := Buttons.Navigator;
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.SetEnabled(const Value: Boolean);
|
|
begin
|
|
if Enabled <> Value then
|
|
begin
|
|
FEnabled := Value;
|
|
if Visible then
|
|
Navigator.RefreshNavigator;
|
|
Navigator.NavigatorChanged(nctLayout);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.SetHint(const Value: string);
|
|
begin
|
|
if AnsiCompareStr(FHint, Value) <> 0 then
|
|
begin
|
|
FHint := Value;
|
|
Navigator.NavigatorChanged(nctProperties);
|
|
end;
|
|
end;
|
|
|
|
function TcxNavigatorButton.GetInternalImageIndex: Integer;
|
|
begin
|
|
if (Buttons.Images <> nil) and (ImageIndex > -1) then
|
|
Result := ImageIndex
|
|
else
|
|
Result := DefaultIndex;
|
|
end;
|
|
|
|
function TcxNavigatorButton.GetIternalImages: TCustomImageList;
|
|
begin
|
|
if (Buttons.Images <> nil) and (ImageIndex > -1) then
|
|
Result := Buttons.Images
|
|
else
|
|
Result := Buttons.DefaultImages;
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.InternalSetVisible(Value: Boolean;
|
|
AIsInternalSetting: Boolean = True);
|
|
begin
|
|
if not AIsInternalSetting then
|
|
FIsVisibleAssigned := True;
|
|
if FVisible <> Value then
|
|
begin
|
|
FVisible := Value;
|
|
Navigator.RefreshNavigator;
|
|
Navigator.NavigatorChanged(nctSize);
|
|
end;
|
|
end;
|
|
|
|
function TcxNavigatorButton.IsVisibleStored: Boolean;
|
|
begin
|
|
Result := FIsVisibleAssigned;
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.SetImageIndex(Value: TImageIndex);
|
|
begin
|
|
if ImageIndex <> Value then
|
|
begin
|
|
FImageIndex := Value;
|
|
if Visible then
|
|
Navigator.RefreshNavigator;
|
|
Navigator.NavigatorChanged(nctLayout);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.SetOnClick(const Value: TNotifyEvent);
|
|
begin
|
|
FOnClick := Value;
|
|
Navigator.NavigatorChanged(nctProperties);
|
|
end;
|
|
|
|
procedure TcxNavigatorButton.SetVisible(const Value: Boolean);
|
|
begin
|
|
InternalSetVisible(Value, False);
|
|
end;
|
|
|
|
{ TcxCustomNavigatorButtons }
|
|
|
|
constructor TcxCustomNavigatorButtons.Create(ANavigator: IcxNavigatorOwner);
|
|
begin
|
|
inherited Create;
|
|
FNavigator := ANavigator;
|
|
FImageChangeLink := TChangeLink.Create;
|
|
FImageChangeLink.OnChange := ImageListChange;
|
|
CreateButtons;
|
|
FConfirmDelete := True;
|
|
end;
|
|
|
|
destructor TcxCustomNavigatorButtons.Destroy;
|
|
begin
|
|
FreeAndNil(FImageChangeLink);
|
|
DestroyButtons;
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.Assign(Source: TPersistent);
|
|
var
|
|
I: Integer;
|
|
begin
|
|
if Source is TcxCustomNavigatorButtons then
|
|
with TcxCustomNavigatorButtons(Source) do
|
|
begin
|
|
for I := 0 to ButtonCount - 1 do
|
|
Self.FButtons[I].Assign(FButtons[I]);
|
|
Self.ConfirmDelete := ConfirmDelete;
|
|
Self.Images := Images;
|
|
Self.OnButtonClick := OnButtonClick;
|
|
end
|
|
else
|
|
inherited Assign(Source);
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.ClickButton(Index: Integer);
|
|
begin
|
|
Buttons[Index].Click;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.ReleaseBookmark;
|
|
begin
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.CreateButtons;
|
|
|
|
function IsButtonVisibleByDefault(AIndex: Integer): Boolean;
|
|
begin
|
|
Result := AIndex <> NBDI_APPEND;
|
|
end;
|
|
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to NavigatorButtonCount - 1 do
|
|
begin
|
|
FButtons[I] := TcxNavigatorButton.Create(Self, IsButtonVisibleByDefault(I));
|
|
FButtons[I].DefaultIndex := I;
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomNavigatorButtons.GetOwner: TPersistent;
|
|
begin
|
|
Result := FNavigator.GetNavigatorOwner;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.DestroyButtons;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to NavigatorButtonCount - 1 do
|
|
FButtons[I].Free;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.DoButtonClick(ADefaultIndex: Integer);
|
|
begin
|
|
end;
|
|
|
|
function TcxCustomNavigatorButtons.GetButtonEnabled(ADefaultIndex: Integer): Boolean;
|
|
begin
|
|
Result := IsNavigatorEnabled;
|
|
end;
|
|
|
|
function TcxCustomNavigatorButtons.GetButtonHint(ADefaultIndex: Integer): string;
|
|
begin
|
|
case ADefaultIndex of
|
|
NBDI_FIRST: Result := cxGetResourceString(@cxNavigatorHint_First);
|
|
NBDI_PRIORPAGE: Result := cxGetResourceString(@cxNavigatorHint_PriorPage);
|
|
NBDI_PRIOR: Result := cxGetResourceString(@cxNavigatorHint_Prior);
|
|
NBDI_LAST: Result := cxGetResourceString(@cxNavigatorHint_Last);
|
|
NBDI_NEXT: Result := cxGetResourceString(@cxNavigatorHint_Next);
|
|
NBDI_NEXTPAGE: Result := cxGetResourceString(@cxNavigatorHint_NextPage);
|
|
NBDI_INSERT: Result := cxGetResourceString(@cxNavigatorHint_Insert);
|
|
NBDI_APPEND: Result := cxGetResourceString(@cxNavigatorHint_Append);
|
|
NBDI_DELETE: Result := cxGetResourceString(@cxNavigatorHint_Delete);
|
|
NBDI_EDIT: Result := cxGetResourceString(@cxNavigatorHint_Edit);
|
|
NBDI_POST: Result := cxGetResourceString(@cxNavigatorHint_Post);
|
|
NBDI_CANCEL: Result := cxGetResourceString(@cxNavigatorHint_Cancel);
|
|
NBDI_REFRESH: Result := cxGetResourceString(@cxNavigatorHint_Refresh);
|
|
NBDI_SAVEBOOKMARK: Result := cxGetResourceString(@cxNavigatorHint_SaveBookmark);
|
|
NBDI_GOTOBOOKMARK: Result := cxGetResourceString(@cxNavigatorHint_GotoBookmark);
|
|
NBDI_FILTER: Result := cxGetResourceString(@cxNavigatorHint_Filter);
|
|
else Result := '';
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomNavigatorButtons.GetButtonImageOffset: Integer;
|
|
begin
|
|
Result := 2;
|
|
end;
|
|
|
|
function TcxCustomNavigatorButtons.IsNavigatorEnabled: Boolean;
|
|
begin
|
|
Result := Navigator.GetNavigatorControl.Enabled;
|
|
end;
|
|
|
|
function TcxCustomNavigatorButtons.GetButton(Index: Integer): TcxNavigatorButton;
|
|
begin
|
|
Result := FButtons[Index];
|
|
end;
|
|
|
|
function TcxCustomNavigatorButtons.GetButtonCount: Integer;
|
|
begin
|
|
Result := High(FButtons) - Low(FButtons) + 1;
|
|
end;
|
|
|
|
function TcxCustomNavigatorButtons.GetDefaultImages: TCustomImageList;
|
|
begin
|
|
Result := NavigatorImages;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.SetButton(Index: Integer; const Value: TcxNavigatorButton);
|
|
begin
|
|
FButtons[Index].Assign(Value);
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.SetConfirmDelete(const Value: Boolean);
|
|
begin
|
|
if FConfirmDelete <> Value then
|
|
begin
|
|
FConfirmDelete := Value;
|
|
Navigator.NavigatorChanged(nctProperties);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.SetImages(const Value: TCustomImageList);
|
|
begin
|
|
cxSetImageList(Value, FImages, FImageChangeLink, Navigator.GetNavigatorOwner);
|
|
Navigator.NavigatorChanged(nctLayout);
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.SetOnButtonClick(
|
|
const Value: TcxNavigatorButtonClickEvent);
|
|
begin
|
|
FOnButtonClick := Value;
|
|
Navigator.NavigatorChanged(nctProperties);
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorButtons.ImageListChange(Sender: TObject);
|
|
begin
|
|
Navigator.RefreshNavigator;
|
|
end;
|
|
|
|
{ TcxNavigatorViewInfo }
|
|
|
|
constructor TcxNavigatorViewInfo.Create(ANavigator: IcxNavigatorOwner;
|
|
AIsInplace: Boolean = True);
|
|
begin
|
|
inherited Create;
|
|
FNavigator := ANavigator;
|
|
FIsDirty := True;
|
|
FIsInplace := AIsInplace;
|
|
FButtons := TList.Create;
|
|
FHintWindowShowing := False;
|
|
FButtonPressTimer := TcxTimer.Create(nil);
|
|
FButtonPressTimer.Enabled := False;
|
|
FButtonPressTimer.OnTimer := DoButtonPressTimer;
|
|
FHintTimer := TcxTimer.Create(nil);
|
|
FHintTimer.Enabled := False;
|
|
FHintTimer.Interval := 500;
|
|
FHintTimer.OnTimer := DoHintTimer;
|
|
FCanvas := TcxCanvas.Create(nil);
|
|
end;
|
|
|
|
destructor TcxNavigatorViewInfo.Destroy;
|
|
begin
|
|
FreeAndNil(FCanvas);
|
|
FreeAndNil(FHintTimer);
|
|
FreeAndNil(FButtonPressTimer);
|
|
FreeAndNil(FHintWindow);
|
|
Clear;
|
|
FreeAndNil(FButtons);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.Calculate;
|
|
var
|
|
AHeight, AWidth: Integer;
|
|
I: Integer;
|
|
ANavigatorBounds: TRect;
|
|
begin
|
|
ANavigatorBounds := Navigator.GetNavigatorBounds;
|
|
with ANavigatorBounds do
|
|
begin
|
|
AWidth := Right - Left;
|
|
AHeight := Bottom - Top;
|
|
end;
|
|
CheckSize(AWidth, AHeight);
|
|
for I := 0 to ButtonCount - 1 do
|
|
begin
|
|
Buttons[I].Enabled := Buttons[I].Button.GetInternalEnabled;
|
|
Buttons[I].Hint := Buttons[I].Button.GetInternalHint;
|
|
end;
|
|
FIsDirty := False;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.CheckSize(var AWidth, AHeight: Integer;
|
|
ACheckMinHeight: Boolean = False);
|
|
|
|
procedure CheckButtonCount;
|
|
var
|
|
APButtonViewInfo: TcxNavigatorButtonViewInfo;
|
|
AVisibleButtonCount, I: Integer;
|
|
begin
|
|
AVisibleButtonCount := GetVisibleButtonCount;
|
|
if AVisibleButtonCount < FButtons.Count then
|
|
for I := 1 to FButtons.Count - AVisibleButtonCount do
|
|
begin
|
|
TcxNavigatorButtonViewInfo(FButtons[AVisibleButtonCount]).Free;
|
|
FButtons.Delete(AVisibleButtonCount);
|
|
end
|
|
else
|
|
for I := FButtons.Count to AVisibleButtonCount - 1 do
|
|
begin
|
|
APButtonViewInfo := TcxNavigatorButtonViewInfo.Create;
|
|
FButtons.Add(APButtonViewInfo);
|
|
end;
|
|
end;
|
|
|
|
var
|
|
AButtonViewInfo: TcxNavigatorButtonViewInfo;
|
|
AButtonVisibleIndex: Integer;
|
|
AMinWidth, AMinHeight, ADifX: Integer;
|
|
AMinSize: TSize;
|
|
ANavigatorBounds, AButtonBounds: TRect;
|
|
ANavigatorButtons: TcxCustomNavigatorButtons;
|
|
AVisibleButtonCount: Integer;
|
|
I: Integer;
|
|
AHotTrackButton, APressedButton: TcxNavigatorButton;
|
|
begin
|
|
ANavigatorBounds := Navigator.GetNavigatorBounds;
|
|
|
|
FIsDirty := True;
|
|
AHotTrackButton := nil;
|
|
APressedButton := nil;
|
|
if FHotTrackButtonViewInfo <> nil then
|
|
AHotTrackButton := FHotTrackButtonViewInfo.Button;
|
|
if FPressedButtonViewInfo <> nil then
|
|
APressedButton := FPressedButtonViewInfo.Button;
|
|
FHotTrackButtonViewInfo := nil;
|
|
FPressedButtonViewInfo := nil;
|
|
|
|
AMinWidth := 0;
|
|
AMinHeight := 0;
|
|
ANavigatorButtons := Navigator.GetNavigatorButtons;
|
|
AVisibleButtonCount := GetVisibleButtonCount;
|
|
CheckButtonCount;
|
|
AButtonVisibleIndex := 0;
|
|
|
|
for I := 0 to ANavigatorButtons.ButtonCount - 1 do
|
|
if ANavigatorButtons[I].Visible then
|
|
begin
|
|
AButtonViewInfo := TcxNavigatorButtonViewInfo(FButtons[AButtonVisibleIndex]);
|
|
AButtonViewInfo.Button := ANavigatorButtons[I];
|
|
if AButtonViewInfo.Button = APressedButton then
|
|
FPressedButtonViewInfo := AButtonViewInfo;
|
|
if AButtonViewInfo.Button = AHotTrackButton then
|
|
FHotTrackButtonViewInfo := AButtonViewInfo;
|
|
AMinSize := GetMinButtonSize(AButtonVisibleIndex, AVisibleButtonCount,
|
|
ACheckMinHeight);
|
|
Inc(AMinWidth, AMinSize.cx);
|
|
if AMinHeight < AMinSize.cy then
|
|
AMinHeight := AMinSize.cy;
|
|
Inc(AButtonVisibleIndex);
|
|
end;
|
|
ADifX := 0;
|
|
if AHeight < AMinHeight then
|
|
AHeight := AMinHeight;
|
|
if AWidth < AMinWidth then
|
|
AWidth := AMinWidth
|
|
else
|
|
begin
|
|
if ButtonCount > 0 then
|
|
ADifX := (AWidth - AMinWidth) div ButtonCount;
|
|
AWidth := AMinWidth + ADifX * ButtonCount;
|
|
end;
|
|
AButtonBounds.Right := ANavigatorBounds.Left;
|
|
AButtonBounds.Top := ANavigatorBounds.Top;
|
|
AButtonBounds.Bottom := AButtonBounds.Top + AHeight;
|
|
for I := 0 to ButtonCount - 1 do
|
|
begin
|
|
AButtonBounds.Left := AButtonBounds.Right;
|
|
AButtonBounds.Right := AButtonBounds.Right + GetMinButtonSize(I, AVisibleButtonCount).cx + ADifX;
|
|
Buttons[I].Bounds := AButtonBounds;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.Clear;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
FIsDirty := True;
|
|
FHotTrackButtonViewInfo := nil;
|
|
FPressedButtonViewInfo := nil;
|
|
for I := 0 to ButtonCount - 1 do
|
|
TcxNavigatorButtonViewInfo(FButtons[I]).Free;
|
|
FButtons.Clear;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.DoEnter;
|
|
begin
|
|
InvalidateButton(FocusedButton);
|
|
UpdateSelected;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.DoExit;
|
|
begin
|
|
InvalidateButton(FocusedButton);
|
|
UpdateSelected;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetButtonAt(const pt: TPoint): TcxNavigatorButton;
|
|
var
|
|
AViewInfo: TcxNavigatorButtonViewInfo;
|
|
begin
|
|
AViewInfo := GetButtonViewInfoAt(pt);
|
|
if AViewInfo <> nil then
|
|
Result := AViewInfo.Button
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetButtonViewInfoAt(const pt: TPoint): TcxNavigatorButtonViewInfo;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
Result := nil;
|
|
for I := 0 to ButtonCount - 1 do
|
|
if PtInRect(Buttons[I].Bounds, pt) then
|
|
begin
|
|
Result := Buttons[I];
|
|
Break;
|
|
end;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetButtonViewInfoByButton(
|
|
AButton: TcxNavigatorButton): TcxNavigatorButtonViewInfo;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
Result := nil;
|
|
for I := 0 to ButtonCount - 1 do
|
|
if Buttons[I].Button = AButton then
|
|
begin
|
|
Result := Buttons[I];
|
|
break;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.MakeIsDirty;
|
|
begin
|
|
FIsDirty := True;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.MouseDown(X, Y: Integer);
|
|
var
|
|
AButtonViewInfo: TcxNavigatorButtonViewInfo;
|
|
begin
|
|
FHintTimer.Enabled := False;
|
|
HintActivate(False);
|
|
AButtonViewInfo := GetButtonViewInfoAt(Point(X, Y));
|
|
if (AButtonViewInfo <> nil)
|
|
and (GetButtonState(AButtonViewInfo) <> cxbsDisabled) then
|
|
begin
|
|
FButtonPressTimer.Interval := cxInitRepeatPause;
|
|
FButtonPressTimer.Enabled := True;
|
|
PressedButtonViewInfo := AButtonViewInfo;
|
|
FocusedButton := AButtonViewInfo;
|
|
InvalidateButton(PressedButtonViewInfo);
|
|
end;
|
|
UpdateSelected;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.MouseMove(X, Y: Integer);
|
|
var
|
|
AButtonViewInfo: TcxNavigatorButtonViewInfo;
|
|
begin
|
|
AButtonViewInfo := GetButtonViewInfoAt(Point(X, Y));
|
|
if AButtonViewInfo <> HotTrackButtonViewInfo then
|
|
begin
|
|
if (HotTrackButtonViewInfo <> nil)
|
|
and (GetButtonState(HotTrackButtonViewInfo) <> cxbsDisabled) then
|
|
InvalidateButton(HotTrackButtonViewInfo);
|
|
FHotTrackButtonViewInfo := AButtonViewInfo;
|
|
if (HotTrackButtonViewInfo <> nil)
|
|
and (GetButtonState(HotTrackButtonViewInfo) <> cxbsDisabled) then
|
|
InvalidateButton(HotTrackButtonViewInfo);
|
|
if FHintWindowShowing then
|
|
HintActivate(True)
|
|
else FHintTimer.Enabled := True;
|
|
end;
|
|
if HotTrackButtonViewInfo = nil then
|
|
HintActivate(False);
|
|
UpdateSelected;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.MouseUp(X, Y: Integer);
|
|
var
|
|
AButtonViewInfo: TcxNavigatorButtonViewInfo;
|
|
begin
|
|
FButtonPressTimer.Enabled := False;
|
|
AButtonViewInfo := PressedButtonViewInfo;
|
|
FPressedButtonViewInfo := nil;
|
|
InvalidateButton(AButtonViewInfo);
|
|
FHintTimer.Enabled := True;
|
|
UpdateSelected;
|
|
if (AButtonViewInfo <> nil) and PtInRect(AButtonViewInfo.Bounds, Point(X, Y)) and AButtonViewInfo.Enabled then
|
|
AButtonViewInfo.Button.DoClick;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.Paint;
|
|
var
|
|
R: TRect;
|
|
I: Integer;
|
|
ANavigatorControl: TWinControl;
|
|
begin
|
|
FCanvas.Canvas := Navigator.GetNavigatorCanvas;
|
|
if FIsDirty then
|
|
Calculate;
|
|
for I := 0 to ButtonCount - 1 do
|
|
PaintButton(I);
|
|
R := Navigator.GetNavigatorBounds;
|
|
ANavigatorControl := Navigator.GetNavigatorControl;
|
|
Navigator.GetNavigatorLookAndFeel.GetAvailablePainter(totButton).DrawButtonGroupBorder(Canvas,
|
|
R, FIsInplace and ANavigatorControl.Enabled, FIsSelected or (not FIsInplace and
|
|
(csDesigning in ANavigatorControl.ComponentState) and ANavigatorControl.Enabled));
|
|
if FIsInplace then
|
|
Canvas.ExcludeClipRect(R);
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.PressArrowKey(ALeftKey: Boolean);
|
|
var
|
|
AIndex: Integer;
|
|
begin
|
|
AIndex := FButtons.IndexOf(FocusedButton);
|
|
if AIndex < 0 then exit;
|
|
if ALeftKey then
|
|
begin
|
|
if AIndex > 0 then
|
|
FocusedButton := Buttons[AIndex - 1];
|
|
end else
|
|
begin
|
|
if AIndex < ButtonCount - 1 then
|
|
FocusedButton := Buttons[AIndex + 1];
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.UpdateButtonsEnabled;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to ButtonCount - 1 do
|
|
if Buttons[I].Enabled <> Buttons[I].Button.GetInternalEnabled then
|
|
begin
|
|
Buttons[I].Enabled := not Buttons[I].Enabled;
|
|
InvalidateButton(Buttons[I]);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.InvalidateButton(AButton: TcxNavigatorButtonViewInfo);
|
|
var
|
|
ANavigatorControl: TWinControl;
|
|
begin
|
|
if AButton <> nil then
|
|
begin
|
|
ANavigatorControl := Navigator.GetNavigatorControl;
|
|
if ANavigatorControl.HandleAllocated then
|
|
Windows.InvalidateRect(ANavigatorControl.Handle,
|
|
@(AButton.Bounds), False);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.PaintButton(AButtonIndex: Integer);
|
|
|
|
procedure DrawButtonGlyph(ACanvas: TcxCanvas; const AGlyphRect: TRect);
|
|
var
|
|
AButton: TcxNavigatorButtonViewInfo;
|
|
AButtonState: TcxButtonState;
|
|
APainter: TcxCustomLookAndFeelPainterClass;
|
|
begin
|
|
AButton := TcxNavigatorButtonViewInfo(FButtons[AButtonIndex]);
|
|
AButtonState := GetButtonState(AButton);
|
|
APainter := Navigator.GetNavigatorLookAndFeel.GetAvailablePainter(totButton);
|
|
APainter.DrawNavigatorGlyph(ACanvas, AButton.Button.InternalImages,
|
|
AButton.Button.InternalImageIndex, AButtonIndex, AGlyphRect,
|
|
AButtonState <> cxbsDisabled, AButton.Button.IsUserImageListUsed);
|
|
end;
|
|
|
|
var
|
|
ABitmap: TcxCustomBitmap;
|
|
AButton: TcxNavigatorButtonViewInfo;
|
|
AButtonBounds, AContentRect, AImageRect, R1: TRect;
|
|
AButtonState: TcxButtonState;
|
|
AImageSize: TSize;
|
|
APainter: TcxCustomLookAndFeelPainterClass;
|
|
ACanvas: TcxCanvas;
|
|
begin
|
|
AButton := TcxNavigatorButtonViewInfo(FButtons[AButtonIndex]);
|
|
AButtonBounds := AButton.Bounds;
|
|
if not Canvas.RectVisible(AButtonBounds) then
|
|
Exit;
|
|
AButtonState := GetButtonState(AButton);
|
|
APainter := Navigator.GetNavigatorLookAndFeel.GetAvailablePainter(totButton);
|
|
AButtonBounds := APainter.AdjustGroupButtonDisplayRect(AButtonBounds, FButtons.Count, AButtonIndex);
|
|
AImageSize := AButton.Button.GetImageSize;
|
|
AContentRect := AButtonBounds;
|
|
ExtendRect(AContentRect, GetButtonBorderExtent(APainter, AButtonIndex, FButtons.Count));
|
|
with AContentRect do
|
|
begin
|
|
AImageRect.Left := Left + (Right - Left - AImageSize.cx) div 2;
|
|
AImageRect.Top := Top + (Bottom - Top - AImageSize.cy) div 2;
|
|
AImageRect.Right := AImageRect.Left + AImageSize.cx;
|
|
AImageRect.Bottom := AImageRect.Top + AImageSize.cy;
|
|
if GetButtonState(AButton) = cxbsPressed then
|
|
OffsetRect(AImageRect, 1, 1);
|
|
end;
|
|
|
|
ABitmap := TcxCustomBitmap.CreateSize(cxRectWidth(AButtonBounds), cxRectHeight(AButtonBounds), pf32bit);
|
|
try
|
|
ACanvas := ABitmap.cxCanvas;
|
|
cxDrawTransparentControlBackground(Navigator.GetNavigatorControl, ACanvas,
|
|
AButtonBounds);
|
|
APainter.DrawButtonInGroup(ACanvas, ABitmap.ClientRect,
|
|
AButtonState, FButtons.Count, AButtonIndex, clWindow);
|
|
|
|
R1 := AImageRect;
|
|
OffsetRect(R1, - AButtonBounds.Left, - AButtonBounds.Top);
|
|
DrawButtonGlyph(ACanvas, R1);
|
|
cxBitBlt(Canvas.Handle, ACanvas.Handle, AButtonBounds, cxNullPoint, SRCCOPY);
|
|
|
|
if Navigator.GetNavigatorTabStop and (AButton = FocusedButton) and
|
|
Navigator.GetNavigatorFocused
|
|
then
|
|
Canvas.DrawFocusRect(AImageRect);
|
|
|
|
if APainter = TcxWinXPLookAndFeelPainter then
|
|
Canvas.ExcludeClipRect(AButton.Bounds);
|
|
finally
|
|
FreeAndNil(ABitmap);
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.HintActivate(AShow: Boolean);
|
|
|
|
function NeedShowHint(const AHint: string): Boolean;
|
|
begin
|
|
Result := AShow and Navigator.GetNavigatorShowHint and (AHint <> '') and
|
|
CanShowHint(Navigator.GetNavigatorControl);
|
|
end;
|
|
|
|
var
|
|
AHint: string;
|
|
P: TPoint;
|
|
R: TRect;
|
|
begin
|
|
if FHintWindow <> nil then
|
|
begin
|
|
FHintWindow.Hide;
|
|
if IsWindowVisible(FHintWindow.Handle) then
|
|
ShowWindow(FHintWindow.Handle, SW_HIDE);
|
|
FreeAndNil(FHintWindow);
|
|
end;
|
|
FHintTimer.Enabled := False;
|
|
FHintWindowShowing := False;
|
|
if (HotTrackButtonViewInfo <> nil) then
|
|
AHint := GetShortHint(HotTrackButtonViewInfo.Hint)
|
|
else
|
|
AHint := '';
|
|
if NeedShowHint(AHint) then
|
|
begin
|
|
FHintWindow := HintWindowClass.Create(nil);
|
|
P := InternalGetCursorPos;
|
|
Inc(P.Y, cxGetCursorSize.cy);
|
|
R := FHintWindow.CalcHintRect(Screen.Width, AHint, nil);
|
|
R := Rect(P.X, P.Y, P.X + R.Right, P.Y + R.Bottom - R.Top);
|
|
FHintWindow.Color := Application.HintColor;
|
|
{$IFDEF DELPHI7}
|
|
FHintWindow.ParentWindow := Application.Handle; //Bug in delphi7 and higher
|
|
{$ENDIF}
|
|
FHintWindow.ActivateHint(R, AHint);
|
|
FHintWindowShowing := True;
|
|
end;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetButton(Index: Integer): TcxNavigatorButtonViewInfo;
|
|
begin
|
|
Result := TcxNavigatorButtonViewInfo(FButtons[Index]);
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetButtonCount: Integer;
|
|
begin
|
|
Result := FButtons.Count;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetFocusedButton: TcxNavigatorButtonViewInfo;
|
|
begin
|
|
if (FFocusedButton <> nil) and not FFocusedButton.Visible then
|
|
FFocusedButton := nil;
|
|
if (FFocusedButton = nil) and (ButtonCount > 0) then
|
|
FFocusedButton := Buttons[0].Button;
|
|
if (FFocusedButton <> nil) then
|
|
Result := GetButtonViewInfoByButton(FFocusedButton)
|
|
else Result := nil;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.SetFocusedButton(Value: TcxNavigatorButtonViewInfo);
|
|
var
|
|
AOldButtonViewInfo: TcxNavigatorButtonViewInfo;
|
|
begin
|
|
AOldButtonViewInfo := GetFocusedButton;
|
|
if AOldButtonViewInfo <> Value then
|
|
begin
|
|
FFocusedButton := Value.Button;
|
|
InvalidateButton(AOldButtonViewInfo);
|
|
InvalidateButton(Value);
|
|
end;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.StopButtonPressTimerIfLeftMouseReleased: Boolean;
|
|
begin
|
|
if not (ssLeft in InternalGetShiftState) then
|
|
begin
|
|
FButtonPressTimer.Enabled := False;
|
|
MouseUp(-1, -1);
|
|
Result := True;
|
|
end
|
|
else
|
|
Result := False;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetButtonBorderExtent(APainter: TcxCustomLookAndFeelPainterClass;
|
|
AButtonIndex, AButtonCount: Integer): TRect;
|
|
begin
|
|
Result := APainter.ButtonGroupBorderSizes(AButtonCount, AButtonIndex);
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetButtonState(AButton: TcxNavigatorButtonViewInfo): TcxButtonState;
|
|
begin
|
|
Result := cxbsNormal;
|
|
if not AButton.Enabled then
|
|
Result := cxbsDisabled
|
|
else
|
|
if (AButton = PressedButtonViewInfo)
|
|
and (AButton = HotTrackButtonViewInfo) then
|
|
Result := cxbsPressed
|
|
else
|
|
if AButton = HotTrackButtonViewInfo then
|
|
Result := cxbsHot;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetMiddleButtonBorderExtent(
|
|
APainter: TcxCustomLookAndFeelPainterClass): TRect;
|
|
begin
|
|
Result := APainter.ButtonGroupBorderSizes(3, 1);
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetMinButtonSize(
|
|
AButtonIndex, AButtonCount: Integer; AAutoHeight: Boolean = False): TSize;
|
|
var
|
|
AButtonBorderExtent: TRect;
|
|
APainter: TcxCustomLookAndFeelPainterClass;
|
|
begin
|
|
Result := TcxNavigatorButtonViewInfo(FButtons[AButtonIndex]).Button.GetImageSize;
|
|
APainter := Navigator.GetNavigatorLookAndFeel.GetAvailablePainter(totButton);
|
|
AButtonBorderExtent := GetMiddleButtonBorderExtent(APainter);
|
|
Result.cx := Result.cx + AButtonBorderExtent.Left + AButtonBorderExtent.Right + 1;
|
|
if AAutoHeight then
|
|
Result.cy := Result.cy + AButtonBorderExtent.Top + AButtonBorderExtent.Bottom + 1
|
|
else
|
|
Result.cy := AButtonBorderExtent.Top + AButtonBorderExtent.Bottom + 1;
|
|
end;
|
|
|
|
function TcxNavigatorViewInfo.GetVisibleButtonCount: Integer;
|
|
var
|
|
ANavigatorButtons: TcxCustomNavigatorButtons;
|
|
I: Integer;
|
|
begin
|
|
Result := 0;
|
|
ANavigatorButtons := Navigator.GetNavigatorButtons;
|
|
for I := 0 to ANavigatorButtons.ButtonCount - 1 do
|
|
if ANavigatorButtons[I].Visible then
|
|
Inc(Result);
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.DoButtonPressTimer(Sender: TObject);
|
|
begin
|
|
if StopButtonPressTimerIfLeftMouseReleased then
|
|
Exit;
|
|
FButtonPressTimer.Interval := cxRepeatPause;
|
|
if (HotTrackButtonViewInfo <> nil) and (HotTrackButtonViewInfo = PressedButtonViewInfo) and
|
|
PressedButtonViewInfo.Enabled and (PressedButtonViewInfo.Button.DefaultIndex in [NBDI_PRIOR, NBDI_NEXT]) then
|
|
try
|
|
PressedButtonViewInfo.Button.DoClick;
|
|
except
|
|
FButtonPressTimer.Enabled := False;
|
|
raise;
|
|
end;
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.DoHintTimer(Sender: TObject);
|
|
begin
|
|
HintActivate(True);
|
|
end;
|
|
|
|
procedure TcxNavigatorViewInfo.UpdateSelected;
|
|
var
|
|
AIsSelected: Boolean;
|
|
ANavigatorControl: TWinControl;
|
|
R1, R2: TRect;
|
|
begin
|
|
if not Navigator.GetNavigatorLookAndFeel.Painter.IsButtonHotTrack then
|
|
Exit;
|
|
ANavigatorControl := Navigator.GetNavigatorControl;
|
|
AIsSelected := (HotTrackButtonViewInfo <> nil) or (PressedButtonViewInfo <> nil) or
|
|
Navigator.GetNavigatorFocused;
|
|
if (AIsSelected <> FIsSelected) and ANavigatorControl.HandleAllocated then
|
|
begin
|
|
FIsSelected := AIsSelected;
|
|
R1 := Navigator.GetNavigatorBounds;
|
|
R2 := R1;
|
|
InflateRect(R2, -1, -1);
|
|
InternalInvalidate(ANavigatorControl.Handle, R1, R2, False);
|
|
end;
|
|
end;
|
|
|
|
{ TcxCustomNavigator }
|
|
|
|
constructor TcxCustomNavigator.Create(AOwner: TComponent);
|
|
begin
|
|
inherited Create(AOwner);
|
|
ControlStyle := ControlStyle - [csAcceptsControls, csSetCaption] + [csOpaque];
|
|
FButtons := CreateButtons;
|
|
FViewInfo := GetViewInfoClass.Create(Self, False);
|
|
TabStop := False;
|
|
Height := 25;
|
|
end;
|
|
|
|
destructor TcxCustomNavigator.Destroy;
|
|
begin
|
|
EndMouseTracking(Self);
|
|
FreeAndNil(FViewInfo);
|
|
FreeAndNil(FButtons);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.ClickButton(Index: Integer);
|
|
begin
|
|
CustomButtons.ClickButton(Index);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.RestoreButtons;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
with CustomButtons do
|
|
for I := 0 to ButtonCount - 1 do
|
|
FButtons[I].FIsVisibleAssigned := False;
|
|
InitButtons;
|
|
end;
|
|
|
|
function TcxCustomNavigator.CanFocusOnClick: Boolean;
|
|
begin
|
|
Result := inherited CanFocusOnClick and TabStop;
|
|
end;
|
|
|
|
function TcxCustomNavigator.CanResize(var NewWidth, NewHeight: Integer): Boolean;
|
|
begin
|
|
Result := inherited CanResize(NewWidth, NewHeight);
|
|
if Result and (FViewInfo <> nil) and HandleAllocated then
|
|
FViewInfo.CheckSize(NewWidth, NewHeight);
|
|
end;
|
|
|
|
function TcxCustomNavigator.CreateButtons: TcxCustomNavigatorButtons;
|
|
begin
|
|
Result := TcxCustomNavigatorButtons.Create(Self);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.Paint;
|
|
begin
|
|
FViewInfo.Paint;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.DoEnter;
|
|
begin
|
|
inherited DoEnter;
|
|
FViewInfo.DoEnter;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.DoExit;
|
|
begin
|
|
inherited DoExit;
|
|
FViewInfo.DoExit;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.EnabledChanged;
|
|
begin
|
|
RefreshNavigator;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.KeyDown(var Key: Word; Shift: TShiftState);
|
|
begin
|
|
inherited KeyDown(Key, Shift);
|
|
if (Key = VK_LEFT) or (Key = VK_RIGHT) then
|
|
FViewInfo.PressArrowKey(Key = VK_LEFT);
|
|
if (Key = VK_SPACE) and (FViewInfo.FocusedButton <> nil)
|
|
and FViewInfo.FocusedButton.Enabled then
|
|
FViewInfo.FocusedButton.Button.DoClick;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.MouseDown(Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
|
begin
|
|
inherited MouseDown(Button, Shift, X, Y);
|
|
if Button = mbLeft then
|
|
FViewInfo.MouseDown(X, Y);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.MouseEnter(AControl: TControl);
|
|
begin
|
|
inherited MouseEnter(AControl);
|
|
{$IFDEF DELPHI7}
|
|
if IsDesigning then
|
|
Exit;
|
|
{$ENDIF}
|
|
BeginMouseTracking(Self, Bounds, Self);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.MouseLeave(AControl: TControl);
|
|
begin
|
|
inherited MouseLeave(AControl);
|
|
{$IFDEF DELPHI7}
|
|
if IsDesigning then
|
|
Exit;
|
|
{$ENDIF}
|
|
EndMouseTracking(Self);
|
|
FViewInfo.MouseMove(-1, -1);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.MouseMove(Shift: TShiftState; X, Y: Integer);
|
|
begin
|
|
inherited MouseMove(Shift, X, Y);
|
|
FViewInfo.MouseMove(X, Y);
|
|
BeginMouseTracking(Self, Bounds, Self);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: Integer);
|
|
begin
|
|
inherited MouseUp(Button, Shift, X, Y);
|
|
FViewInfo.MouseUp(X, Y);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.LookAndFeelChanged(Sender: TcxLookAndFeel;
|
|
AChangedValues: TcxLookAndFeelValues);
|
|
begin
|
|
inherited LookAndFeelChanged(Sender, AChangedValues);
|
|
RecreateWnd
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.NavigatorMouseLeave;
|
|
begin
|
|
FViewInfo.MouseMove(-1, -1);
|
|
// FViewInfo.FHintWindow.Free;
|
|
// FViewInfo.FHintWindow := THintWindow.Create(nil);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.NavigatorChanged(AChangeType: TcxNavigatorChangeType);
|
|
begin
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorBounds: TRect;
|
|
begin
|
|
Result := Rect(0, 0, ClientWidth, ClientHeight);
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorButtons: TcxCustomNavigatorButtons;
|
|
begin
|
|
Result := CustomButtons;
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorCanvas: TCanvas;
|
|
begin
|
|
Result := Canvas.Canvas;
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorControl: TWinControl;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorLookAndFeel: TcxLookAndFeel;
|
|
begin
|
|
Result := LookAndFeel;
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorFocused: Boolean;
|
|
begin
|
|
Result := Focused;
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorShowHint: Boolean;
|
|
begin
|
|
Result := ShowHint;
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorTabStop: Boolean;
|
|
begin
|
|
Result := TabStop;
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetViewInfoClass: TcxNavigatorViewInfoClass;
|
|
begin
|
|
Result := TcxNavigatorViewInfo;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.InitButtons;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to FButtons.ButtonCount - 1 do
|
|
FButtons[I].RestoreDefaultVisible(True);
|
|
end;
|
|
|
|
function TcxCustomNavigator.GetNavigatorOwner: TComponent;
|
|
begin
|
|
Result := Self;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.NavigatorButtonsStateChanged;
|
|
begin
|
|
FViewInfo.UpdateButtonsEnabled;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.RefreshNavigator;
|
|
var
|
|
AWidth, AHeight: Integer;
|
|
begin
|
|
if not HandleAllocated then
|
|
Exit;
|
|
AWidth := Width;
|
|
AHeight := Height;
|
|
FViewInfo.CheckSize(AWidth, AHeight);
|
|
if (AWidth <> Width) or (Height <> AHeight) then
|
|
SetBounds(Left, Top, AWidth, AHeight)
|
|
else
|
|
Invalidate;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.CreateWnd;
|
|
begin
|
|
inherited CreateWnd;
|
|
RefreshNavigator;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.WndProc(var Message: TMessage);
|
|
begin
|
|
if (FViewInfo <> nil) and (FViewInfo.FHintWindowShowing) then
|
|
with Message do
|
|
if ((Msg >= WM_KEYFIRST) and (Msg <= WM_KEYLAST)) or
|
|
((Msg = CM_ACTIVATE) or (Msg = CM_DEACTIVATE)) or
|
|
(Msg = CM_APPKEYDOWN) or (Msg = CM_APPSYSCOMMAND) or
|
|
(Msg = WM_COMMAND) or ((Msg > WM_MOUSEMOVE) and
|
|
(Msg <= WM_MOUSELAST)) or (Msg = WM_NCMOUSEMOVE) then
|
|
FViewInfo.HintActivate(False);
|
|
inherited WndProc(Message);
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.WMGetDlgCode(var Message: TWMGetDlgCode);
|
|
begin
|
|
Message.Result := DLGC_WANTARROWS;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.CMEnabledChanged(var Message: TMessage);
|
|
begin
|
|
inherited;
|
|
EnabledChanged;
|
|
end;
|
|
|
|
procedure TcxCustomNavigator.CMHintShow(var Message: TCMHintShow);
|
|
begin
|
|
Message.Result := 1;
|
|
end;
|
|
|
|
{ TcxNavigatorControlNotifier }
|
|
|
|
constructor TcxNavigatorControlNotifier.Create;
|
|
begin
|
|
inherited Create;
|
|
FList := TList.Create;
|
|
end;
|
|
|
|
destructor TcxNavigatorControlNotifier.Destroy;
|
|
begin
|
|
FreeAndNil(FList);
|
|
inherited Destroy;
|
|
end;
|
|
|
|
procedure TcxNavigatorControlNotifier.AddNavigator(ANavigator: IcxNavigatorOwner);
|
|
begin
|
|
if FList.IndexOf(Pointer(ANavigator)) < 0 then
|
|
FList.Add(Pointer(ANavigator));
|
|
end;
|
|
|
|
procedure TcxNavigatorControlNotifier.RemoveNavigator(ANavigator: IcxNavigatorOwner);
|
|
begin
|
|
FList.Remove(Pointer(ANavigator));
|
|
end;
|
|
|
|
procedure TcxNavigatorControlNotifier.RefreshNavigatorButtons;
|
|
var
|
|
I: Integer;
|
|
begin
|
|
for I := 0 to FList.Count - 1 do
|
|
IcxNavigatorOwner(FList[I]).NavigatorButtonsStateChanged;
|
|
end;
|
|
|
|
{ TcxNavigatorControlButtons }
|
|
procedure TcxNavigatorControlButtons.ReleaseBookmark;
|
|
var
|
|
ANavigatorControl: IcxNavigator;
|
|
begin
|
|
ANavigatorControl := Control;
|
|
if (ANavigatorControl <> nil) and ANavigatorControl.IsBookmarkAvailable then
|
|
ANavigatorControl.ClearBookmark;
|
|
end;
|
|
|
|
function TcxNavigatorControlButtons.GetControl: IcxNavigator;
|
|
begin
|
|
if Assigned(FOnGetControl) then
|
|
Result := FOnGetControl
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
procedure TcxNavigatorControlButtons.DoButtonClick(ADefaultIndex: Integer);
|
|
var
|
|
ANavigatorControl: IcxNavigator;
|
|
begin
|
|
ANavigatorControl := Control;
|
|
if ANavigatorControl <> nil then
|
|
ANavigatorControl.DoAction(ADefaultIndex);
|
|
FNavigator.NavigatorButtonsStateChanged;
|
|
end;
|
|
|
|
function TcxNavigatorControlButtons.GetButtonEnabled(ADefaultIndex: Integer): Boolean;
|
|
var
|
|
ANavigatorControl: IcxNavigator;
|
|
begin
|
|
ANavigatorControl := Control;
|
|
Result := (ANavigatorControl <> nil) and IsNavigatorEnabled and
|
|
(ANavigatorControl.IsActive or (ADefaultIndex = NBDI_FILTER));
|
|
if Result then
|
|
case ADefaultIndex of
|
|
NBDI_FIRST, NBDI_PRIOR, NBDI_PRIORPAGE:
|
|
Result := not ANavigatorControl.IsBof;
|
|
NBDI_LAST, NBDI_NEXT, NBDI_NEXTPAGE:
|
|
Result := not ANavigatorControl.IsEof;
|
|
NBDI_INSERT:
|
|
Result := ANavigatorControl.CanInsert;
|
|
NBDI_APPEND:
|
|
Result := ANavigatorControl.CanAppend;
|
|
NBDI_DELETE:
|
|
Result := ANavigatorControl.CanDelete;
|
|
NBDI_EDIT:
|
|
Result := ANavigatorControl.CanEdit and not ANavigatorControl.IsEditing;
|
|
NBDI_POST, NBDI_CANCEL:
|
|
Result := ANavigatorControl.IsEditing;
|
|
NBDI_GOTOBOOKMARK:
|
|
Result := ANavigatorControl.IsBookmarkAvailable;
|
|
end;
|
|
end;
|
|
|
|
{ TcxCustomNavigatorControl }
|
|
|
|
destructor TcxCustomNavigatorControl.Destroy;
|
|
begin
|
|
Control := nil;
|
|
inherited Destroy;
|
|
end;
|
|
|
|
function TcxCustomNavigatorControl.CreateButtons: TcxCustomNavigatorButtons;
|
|
begin
|
|
Result := GetButtonsClass.Create(Self);
|
|
TcxNavigatorControlButtons(Result).OnGetControl := GetControl;
|
|
end;
|
|
|
|
function TcxCustomNavigatorControl.GetButtonsClass: TcxNavigatorControlButtonsClass;
|
|
begin
|
|
Result := TcxNavigatorControlButtons;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorControl.Notification(AComponent: TComponent; Operation: TOperation);
|
|
begin
|
|
inherited Notification(AComponent, Operation);
|
|
if (Operation = opRemove) and (AComponent = Control) then
|
|
Control := nil;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorControl.InitButtons;
|
|
var
|
|
ANavigator: IcxNavigator;
|
|
I: Integer;
|
|
begin
|
|
if FControl = nil then
|
|
begin
|
|
for I := 0 to FButtons.ButtonCount - 1 do
|
|
FButtons[I].RestoreDefaultVisible(True);
|
|
end
|
|
else
|
|
begin
|
|
Supports(FControl, IcxNavigator, ANavigator);
|
|
for I := 0 to FButtons.ButtonCount - 1 do
|
|
FButtons[I].RestoreDefaultVisible(ANavigator.IsActionSupported(FButtons[I].DefaultIndex));
|
|
end;
|
|
end;
|
|
|
|
function TcxCustomNavigatorControl.GetButtons: TcxNavigatorControlButtons;
|
|
begin
|
|
Result := TcxNavigatorControlButtons(CustomButtons);
|
|
end;
|
|
|
|
function TcxCustomNavigatorControl.GetControl: IcxNavigator;
|
|
begin
|
|
if Control <> nil then
|
|
Supports(Control, IcxNavigator, Result)
|
|
else
|
|
Result := nil;
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorControl.SetButtons(Value: TcxNavigatorControlButtons);
|
|
begin
|
|
CustomButtons.Assign(Value);
|
|
end;
|
|
|
|
procedure TcxCustomNavigatorControl.SetControl(Value: TComponent);
|
|
var
|
|
ANavigator: IcxNavigator;
|
|
begin
|
|
if (Value <> FControl) and ((Value = nil) or Supports(Value, IcxNavigator,
|
|
ANavigator)) then
|
|
begin
|
|
if FControl <> nil then
|
|
begin
|
|
{$IFDEF DELPHI5}
|
|
FControl.RemoveFreeNotification(Self);
|
|
{$ENDIF}
|
|
Supports(FControl, IcxNavigator, ANavigator);
|
|
if ANavigator.GetNotifier <> nil then
|
|
ANavigator.GetNotifier.RemoveNavigator(Self);
|
|
end;
|
|
FControl := Value;
|
|
if (FControl <> nil) then
|
|
begin
|
|
FControl.FreeNotification(Self);
|
|
Supports(FControl, IcxNavigator, ANavigator);
|
|
if ANavigator.GetNotifier <> nil then
|
|
ANavigator.GetNotifier.AddNavigator(Self);
|
|
end;
|
|
InitButtons;
|
|
RefreshNavigator;
|
|
end;
|
|
end;
|
|
|
|
initialization
|
|
|
|
finalization
|
|
FreeAndNil(FNavigatorImages);
|
|
|
|
end.
|