434 lines
13 KiB
ObjectPascal
434 lines
13 KiB
ObjectPascal
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{********************************************************************}
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{ }
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{ Developer Express Visual Component Library }
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{ ExpressLayoutControl Look & Feel design-time form }
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{ }
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{ Copyright (c) 2001-2009 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 EXPRESSLAYOUTCONTROL AND ALL }
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{ ACCOMPANYING VCL CONTROLS AS PART OF AN EXECUTABLE PROGRAM }
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{ 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 dxLayoutLookAndFeelListDesignForm;
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{$I cxVer.inc}
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interface
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uses
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms,
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Dialogs, StdCtrls, ExtCtrls, ComCtrls, ToolWin, ImgList, ActnList,
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{$IFDEF DELPHI6}
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Variants, DesignIntf,
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{$ELSE}
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DsgnIntf,
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{$ENDIF}
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cxControls, dxLayoutControl, dxLayoutLookAndFeels, cxDesignWindows, cxGraphics,
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Menus, dxLayoutControlAdapters, cxMemo, cxCheckBox, cxContainer, cxEdit,
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cxTextEdit, cxLookAndFeelPainters, cxButtons, cxRichEdit,
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dxLayoutcxEditAdapters;
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type
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TdxLayoutLookAndFeelListDesignForm = class(TcxDesignFormEditor, IdxLayoutLookAndFeelsDesigner)
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lcMain: TdxLayoutControl;
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lbItems: TListBox;
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lcMainItem1: TdxLayoutItem;
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lcMainGroup3: TdxLayoutGroup;
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lflMain: TdxLayoutLookAndFeelList;
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lcPreview: TdxLayoutControl;
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dxLayoutGroup1: TdxLayoutGroup;
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dxLayoutControl1Group2: TdxLayoutGroup;
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dxLayoutControl1Group3: TdxLayoutGroup;
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alMain: TActionList;
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acAdd: TAction;
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acDelete: TAction;
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acClose: TAction;
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lcMainItem5: TdxLayoutItem;
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tlbGroups: TToolBar;
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tbAddItem: TToolButton;
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tbDelete: TToolButton;
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PopupMenu1: TPopupMenu;
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ilMain: TcxImageList;
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ilMainDisabled: TcxImageList;
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cxTextEdit1: TcxTextEdit;
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lcPreviewItem1: TdxLayoutItem;
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cxMemo1: TcxMemo;
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lcPreviewItem5: TdxLayoutItem;
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cxCheckBox3: TcxCheckBox;
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lcPreviewItem2: TdxLayoutItem;
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cxTextEdit2: TcxTextEdit;
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lcPreviewItem8: TdxLayoutItem;
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cxRichEdit1: TcxRichEdit;
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lcPreviewItem3: TdxLayoutItem;
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cxButton1: TcxButton;
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lcPreviewItem4: TdxLayoutItem;
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cxButton2: TcxButton;
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lcPreviewItem6: TdxLayoutItem;
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lcPreviewGroup1: TdxLayoutGroup;
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cxButton3: TcxButton;
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lcPreviewItem9: TdxLayoutItem;
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lcPreviewGroup2: TdxLayoutGroup;
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liWarning: TdxLayoutItem;
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dxLayoutLookAndFeelList1: TdxLayoutLookAndFeelList;
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dxLayoutWebLookAndFeel2: TdxLayoutWebLookAndFeel;
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lcPreviewGroup4: TdxLayoutGroup;
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lcMainItem2: TdxLayoutItem;
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cxCheckBox1: TcxCheckBox;
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lcPreviewItem10: TdxLayoutItem;
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procedure btnAddClick(Sender: TObject);
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procedure lbItemsClick(Sender: TObject);
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procedure acDeleteExecute(Sender: TObject);
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procedure lbItemsKeyDown(Sender: TObject; var Key: Word;
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Shift: TShiftState);
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procedure FormCreate(Sender: TObject);
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private
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function CanModify: Boolean;
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function GetListBoxItemHeight: Integer;
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function GetList: TdxLayoutLookAndFeelList;
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procedure SynchronizeListBoxSelection;
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protected
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procedure SetComponent(AValue: TComponent); override;
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procedure UpdateCaption; override;
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procedure UpdateContent; override;
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procedure DeleteItems;
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function NeedRefreshItemsAfterDeleting(AComponent: TPersistent): Boolean;
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procedure Refresh(ARefreshSelection: Boolean = False);
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procedure RefreshEnableds;
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procedure RefreshListBox;
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procedure SetAddItemsActionEnabled(AEnabled: Boolean);
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procedure SetDeleteItemsActionEnabled(AEnabled: Boolean);
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procedure SynchronizeControlsSelection(AList: TList);
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procedure SynchronizeSelection(AList: TList);
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//IdxLayoutLookAndFeelsDesigner
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procedure ComponentNameChanged(ALookAndFeelList: TdxLayoutLookAndFeelList);
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procedure ItemsChanged(ALookAndFeelList: TdxLayoutLookAndFeelList);
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procedure SetList(ALookAndFeelList: TdxLayoutLookAndFeelList);
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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 AfterConstruction; override;
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procedure ItemDeleted(const ADesigner: IDesigner; AItem: TPersistent); override;
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procedure SelectionsChanged(const ASelection: TDesignerSelectionList); override;
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property List: TdxLayoutLookAndFeelList read GetList;
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end;
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implementation
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{$R *.dfm}
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uses
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Math, cxClasses, dxCore;
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{ TdxLayoutLookAndFeelListDesignForm }
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constructor TdxLayoutLookAndFeelListDesignForm.Create(AOwner: TComponent);
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procedure PopulatePopupMenuItems;
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var
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I: Integer;
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AItem: TMenuItem;
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begin
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for I := 0 to dxLayoutLookAndFeelDefs.Count - 1 do
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begin
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AItem := TMenuItem.Create(PopupMenu1);
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AItem.Caption := dxLayoutLookAndFeelDefs[I].Description;
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AItem.Tag := I;
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AItem.OnClick := btnAddClick;
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PopupMenu1.Items.Add(AItem);
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end;
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end;
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begin
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inherited;
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dxLayoutLookAndFeelsDesigner := Self;
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{$IFDEF DELPHI9}
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PopupMode := pmExplicit;
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{$ENDIF}
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if not IsXPManifestEnabled then
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begin
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cxTransformImages(ilMain, clBtnFace);
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tlbGroups.DisabledImages := ilMainDisabled;
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cxTransformImages(ilMainDisabled, clBtnFace, False);
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end;
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PopulatePopupMenuItems;
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end;
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destructor TdxLayoutLookAndFeelListDesignForm.Destroy;
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begin
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dxLayoutLookAndFeelsDesigner := nil;
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inherited;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.AfterConstruction;
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begin
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inherited;
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lbItems.ItemHeight := GetListBoxItemHeight;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.ItemDeleted(const ADesigner: IDesigner; AItem: TPersistent);
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begin
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if (LockCount = 0) and (AItem <> Component) and not Closing and
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NeedRefreshItemsAfterDeleting(AItem) then
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Refresh(True);
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.SelectionsChanged(const ASelection: TDesignerSelectionList);
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var
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AList: TList;
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begin
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inherited;
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if Component = nil then
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Exit;
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AList := TList.Create;
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try
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GetSelectionList(AList);
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SynchronizeSelection(AList);
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finally
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AList.Free;
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end;
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end;
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function TdxLayoutLookAndFeelListDesignForm.CanModify: Boolean;
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begin
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Result := not Designer.IsSourceReadOnly and (List <> nil) and
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not (csDestroying in List.ComponentState) and
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not (csInline in List.Owner.ComponentState);
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end;
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function TdxLayoutLookAndFeelListDesignForm.GetListBoxItemHeight: Integer;
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begin
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Result := 2 + lbItems.Canvas.TextHeight('Qq') + 2;
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end;
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function TdxLayoutLookAndFeelListDesignForm.GetList: TdxLayoutLookAndFeelList;
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begin
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Result := TdxLayoutLookAndFeelList(Component);
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.SynchronizeListBoxSelection;
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var
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AList: TList;
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begin
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if LockCount > 0 then
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Exit;
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AList := TList.Create;
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try
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ListBoxGetSelection(lbItems, AList);
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SynchronizeSelection(AList);
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finally
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AList.Free;
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end;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.DeleteItems;
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procedure InternalDeleteItems;
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var
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AList: TcxObjectList;
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begin
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AList := TcxObjectList.Create;
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try
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GetSelectionList(AList);
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if AList.Count > 0 then
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begin
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BeginUpdate;
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try
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AList.Clear;
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UpdateContent;
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finally
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EndUpdate;
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end;
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Designer.Modified;
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end;
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finally
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AList.Free;
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end;
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end;
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var
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AIndex: Integer;
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begin
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AIndex := lbItems.ItemIndex;
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InternalDeleteItems;
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RefreshListBox;
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if lbItems.Count > 0 then
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begin
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AIndex := Min(AIndex, lbItems.Count - 1);
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lbItems.ItemIndex := AIndex;
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lbItems.Selected[AIndex] := True;
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end;
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SynchronizeListBoxSelection;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.SetComponent(AValue: TComponent);
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begin
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if Component <> nil then
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Component.RemoveFreeNotification(Self);
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inherited;
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if Component <> nil then
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Component.FreeNotification(Self);
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UpdateCaption;
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Refresh(True);
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.UpdateCaption;
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begin
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Caption := cxGetFullComponentName(Component) + ' - Designer';
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.UpdateContent;
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begin
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inherited;
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Refresh(True);
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end;
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function TdxLayoutLookAndFeelListDesignForm.NeedRefreshItemsAfterDeleting(AComponent: TPersistent): Boolean;
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begin
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Result := (AComponent is TdxCustomLayoutLookAndFeel) and
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(TdxCustomLayoutLookAndFeel(AComponent).List = List);
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.Refresh(ARefreshSelection: Boolean = False);
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begin
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if (LockCount > 0) or (Component = nil) then
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Exit;
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RefreshListBox;
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if ARefreshSelection then
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UpdateSelection;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.RefreshEnableds;
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var
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ACanModify: Boolean;
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begin
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ACanModify := CanModify;
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SetAddItemsActionEnabled(ACanModify);
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SetDeleteItemsActionEnabled(ACanModify and (lbItems.SelCount > 0));
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.RefreshListBox;
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var
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I: Integer;
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AItem: TdxCustomLayoutLookAndFeel;
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begin
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with lbItems.Items do
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begin
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BeginUpdate;
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try
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Clear;
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for I := 0 to List.Count - 1 do
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begin
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AItem := List[I];
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AddObject(AItem.Name, AItem);
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end;
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finally
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EndUpdate;
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end;
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end;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.SetAddItemsActionEnabled(AEnabled: Boolean);
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begin
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acAdd.Enabled := AEnabled;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.SetDeleteItemsActionEnabled(AEnabled: Boolean);
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begin
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acDelete.Enabled := AEnabled;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.SynchronizeControlsSelection(AList: TList);
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begin
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ListBoxSyncSelection(lbItems, AList);
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.SynchronizeSelection(AList: TList);
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begin
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SelectComponents(AList, nil);
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SynchronizeControlsSelection(AList);
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RefreshEnableds;
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lcPreview.Visible := (AList.Count = 1) and (TPersistent(AList[0]) is TdxCustomLayoutLookAndFeel);
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if lcPreview.Visible then
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lcPreview.LookAndFeel := TdxCustomLayoutLookAndFeel(AList[0]);
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.ComponentNameChanged(ALookAndFeelList: TdxLayoutLookAndFeelList);
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begin
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if ALookAndFeelList = List then
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UpdateCaption;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.ItemsChanged(ALookAndFeelList: TdxLayoutLookAndFeelList);
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begin
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if ALookAndFeelList = List then
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UpdateContent;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.SetList(ALookAndFeelList: TdxLayoutLookAndFeelList);
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begin
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Component := ALookAndFeelList;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.btnAddClick(Sender: TObject);
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var
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ALookAndFeel: TdxCustomLayoutLookAndFeel;
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begin
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ALookAndFeel := List.CreateItem(dxLayoutLookAndFeelDefs.Items[(Sender as TComponent).Tag]);
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Designer.SelectComponent(ALookAndFeel);
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.lbItemsClick(Sender: TObject);
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begin
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SynchronizeListBoxSelection;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.acDeleteExecute(Sender: TObject);
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begin
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DeleteItems;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.lbItemsKeyDown(
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Sender: TObject; var Key: Word; Shift: TShiftState);
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begin
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if (Key = VK_DELETE) and (lbItems.SelCount > 0) then
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DeleteItems;
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end;
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procedure TdxLayoutLookAndFeelListDesignForm.FormCreate(Sender: TObject);
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begin
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liWarning.CaptionOptions.Width := Round(liWarning.CaptionOptions.Width * Screen.PixelsPerInch / 96);
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end;
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end.
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