david
111d889bc6
git-svn-id: https://192.168.0.254/svn/Componentes.Terceros.DevExpressVCL@32 05c56307-c608-d34a-929d-697000501d7a
471 lines
15 KiB
ObjectPascal
471 lines
15 KiB
ObjectPascal
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{********************************************************************}
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{ }
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{ Developer Express Visual Component Library }
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{ Express Cross Platform Library classes }
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{ }
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{ Copyright (c) 2000-2009 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 EXPRESSCROSSPLATFORMLIBRARY 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 cxStyleSheetsLoad;
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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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Variants,
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{$ENDIF}
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Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls,
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cxClasses, cxStyles, ExtCtrls, cxStyleSheetEditor;
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type
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TcxPredefinedStyleSheetsClass = class of TcxPredefinedStyleSheets;
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TcxPredefinedStyleSheets = class
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private
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FList: TList;
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protected
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procedure AddStyleSheet(AStyleSheet: TcxCustomStyleSheet);
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procedure AddStyleSheets; virtual; abstract;
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public
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constructor Create; virtual;
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destructor Destroy; override;
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procedure GetStyleSheetsByClass(AStyleSheetClass: TcxCustomStyleSheetClass; const AList: TList);
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end;
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TcxPredefinedStyleSheetsList = class
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private
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FList: TList;
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FStyleSheetClassComboBox: TComboBox;
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FStyleSheetsListBox: TListBox;
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FLoadButton: TButton;
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FPreview: TcxStyleSheetEditorPreview;
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procedure StyleSheetClassComboBoxClick(Sender: TObject);
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procedure StyleSheetsListBoxClick(Sender: TObject);
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protected
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procedure FreeAndNilItems;
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procedure UpdateButton;
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public
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constructor Create(AStyleSheetClassComboBox: TComboBox; AStyleSheetsListBox: TListBox;
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ALoadButton: TButton);
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destructor Destroy; override;
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function CurrentStyleSheet: TcxCustomStyleSheet;
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function CurrentStyleSheetClass: TcxCustomStyleSheetClass;
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procedure FillListBox;
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end;
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TfrmcxStyleSheetsLoad = class(TForm)
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pnlBottom: TPanel;
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Bevel: TBevel;
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pnlStyles: TPanel;
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pnlStyleSheetClasses: TPanel;
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lbStyleSheetClass: TLabel;
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cbStyleSheetClasses: TComboBox;
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lbStyleSheets: TListBox;
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pnlPreview: TPanel;
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pnlClient: TPanel;
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btnLoad: TButton;
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btnClose: TButton;
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Panel2: TPanel;
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Panel1: TPanel;
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Panel3: TPanel;
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lbPreview: TLabel;
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pnlPreviewClient: TPanel;
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procedure FormCreate(Sender: TObject);
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public
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constructor Create(AOwner: TComponent); override;
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function CurrentStyleSheetClass: TcxCustomStyleSheetClass;
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procedure SetShowPreview(Value: Boolean);
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end;
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procedure RegisterPredefinedStyleSheets(APredefinedStyleSheetsClass: TcxPredefinedStyleSheetsClass);
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procedure UnregisterPredefinedStyleSheets(APredefinedStyleSheetsClass: TcxPredefinedStyleSheetsClass);
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procedure GetPredefinedStyleSheetClasses(AList: TList);
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procedure ShowLoadStyleSheetsFromIniFile(const AIniFileName: string;
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AStyleRepository: TcxStyleRepository; AOwner: TComponent; const AStyleSheetList: TList;
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AStyleGetName: TcxStyleGetName);
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procedure ShowLoadStyleSheetsFromPreDefineStyles(AStyleRepository: TcxStyleRepository;
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AOwner: TComponent; const AStyleSheetList: TList; AStyleGetName: TcxStyleGetName);
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implementation
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{$R *.dfm}
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uses
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IniFiles;
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var
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FPredefinedStyleSheetsList: TList = nil;
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procedure RegisterPredefinedStyleSheets(APredefinedStyleSheetsClass: TcxPredefinedStyleSheetsClass);
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begin
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if FPredefinedStyleSheetsList = nil then
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FPredefinedStyleSheetsList := TList.Create;
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if FPredefinedStyleSheetsList.IndexOf(TObject(APredefinedStyleSheetsClass)) = -1 then
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FPredefinedStyleSheetsList.Add(TObject(APredefinedStyleSheetsClass));
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end;
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procedure UnregisterPredefinedStyleSheets(APredefinedStyleSheetsClass: TcxPredefinedStyleSheetsClass);
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begin
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if FPredefinedStyleSheetsList <> nil then
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begin
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FPredefinedStyleSheetsList.Remove(TObject(APredefinedStyleSheetsClass));
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if FPredefinedStyleSheetsList.Count = 0 then
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FreeAndNil(FPredefinedStyleSheetsList);
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end;
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end;
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procedure GetPredefinedStyleSheetClasses(AList: TList);
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begin
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CopyList(FPredefinedStyleSheetsList, AList);
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end;
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{ TcxPredefinedStyleSheets }
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constructor TcxPredefinedStyleSheets.Create;
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begin
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inherited;
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FList := TList.Create;
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end;
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destructor TcxPredefinedStyleSheets.Destroy;
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begin
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FList.Free;
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inherited;
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end;
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procedure TcxPredefinedStyleSheets.GetStyleSheetsByClass(AStyleSheetClass: TcxCustomStyleSheetClass;
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const AList: TList);
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var
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I: Integer;
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begin
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for I := 0 to FList.Count - 1 do
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if TcxCustomStyleSheetClass(TcxCustomStyleSheet(FList[I]).ClassType) = AStyleSheetClass then
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AList.Add(FList[I]);
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end;
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procedure TcxPredefinedStyleSheets.AddStyleSheet(AStyleSheet: TcxCustomStyleSheet);
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begin
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if FList.IndexOf(AStyleSheet) = -1 then
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FList.Add(AStyleSheet);
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end;
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{ TcxPredefinedStyleSheetsList }
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constructor TcxPredefinedStyleSheetsList.Create(AStyleSheetClassComboBox: TComboBox;
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AStyleSheetsListBox: TListBox; ALoadButton: TButton);
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var
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I: Integer;
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begin
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inherited Create;
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FList := TList.Create;
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FStyleSheetClassComboBox := AStyleSheetClassComboBox;
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FStyleSheetsListBox := AStyleSheetsListBox;
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FLoadButton := ALoadButton;
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FStyleSheetClassComboBox.OnClick := StyleSheetClassComboBoxClick;
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FStyleSheetsListBox.OnClick := StyleSheetsListBoxClick;
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if FPredefinedStyleSheetsList <> nil then
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for I := 0 to FPredefinedStyleSheetsList.Count - 1 do
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FList.Add(TcxPredefinedStyleSheetsClass(FPredefinedStyleSheetsList[I]).Create);
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end;
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destructor TcxPredefinedStyleSheetsList.Destroy;
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begin
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FreeAndNil(FPreview);
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FreeAndNilItems;
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inherited;
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end;
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function TcxPredefinedStyleSheetsList.CurrentStyleSheet: TcxCustomStyleSheet;
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begin
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with FStyleSheetsListBox do
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if ItemIndex > -1 then
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Result := TcxCustomStyleSheet(Items.Objects[ItemIndex])
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else
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Result := nil;
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end;
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function TcxPredefinedStyleSheetsList.CurrentStyleSheetClass: TcxCustomStyleSheetClass;
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begin
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with FStyleSheetClassComboBox do
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if ItemIndex > - 1 then
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Result := TcxCustomStyleSheetClass(Items.Objects[ItemIndex])
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else
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Result := nil;
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end;
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procedure TcxPredefinedStyleSheetsList.FillListBox;
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var
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AForm: TfrmcxStyleSheetsLoad;
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AList: TList;
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I: Integer;
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StyleSheet: TcxCustomStyleSheet;
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PreviewClass: TcxStyleSheetEditorPreviewClass;
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begin
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AForm := TfrmcxStyleSheetsLoad(GetParentForm(FStyleSheetsListBox));
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if CurrentStyleSheetClass = nil then
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begin
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FStyleSheetsListBox.Items.Clear;
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//AForm.Width := AForm.pnlStyles.Width;
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end
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else
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begin
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AList := TList.Create;
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try
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for I := 0 to FList.Count - 1 do
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TcxPredefinedStyleSheets(FList[I]).GetStyleSheetsByClass(CurrentStyleSheetClass, AList);
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with FStyleSheetsListBox.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 AList.Count - 1 do
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begin
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StyleSheet := TcxCustomStyleSheet(AList[I]);
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AddObject(StyleSheet.Caption, StyleSheet);
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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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finally
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AList.Free;
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end;
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end;
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FreeAndNil(FPreview);
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PreviewClass := nil;
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if CurrentStyleSheetClass <> nil then
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PreviewClass := GetPreviewByStyleSheetClass(CurrentStyleSheetClass);
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if PreviewClass <> nil then
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begin
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FPreview := PreviewClass.Create(AForm);
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AForm.SetShowPreview(True);
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FPreview.Control.Parent := AForm.pnlPreviewClient;
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FPreview.Control.Align := alClient;
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FPreview.SetStyleSheet(nil);
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if AForm.pnlPreviewClient.Width < FPreview.GetSize.X then
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AForm.Width := AForm.Width + FPreview.GetSize.X - AForm.pnlPreviewClient.Width;
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if AForm.pnlPreviewClient.Height < FPreview.GetSize.Y then
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AForm.Height := AForm.Height + FPreview.GetSize.Y - AForm.pnlPreviewClient.Height;
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end
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else
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AForm.SetShowPreview(False);
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UpdateButton;
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end;
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procedure TcxPredefinedStyleSheetsList.FreeAndNilItems;
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var
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I: Integer;
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begin
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for I := 0 to FList.Count - 1 do
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TObject(FList[I]).Free;
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FList.Free;
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end;
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procedure TcxPredefinedStyleSheetsList.UpdateButton;
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begin
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FLoadButton.Enabled := FStyleSheetsListBox.SelCount > 0;
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end;
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procedure TcxPredefinedStyleSheetsList.StyleSheetClassComboBoxClick(Sender: TObject);
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begin
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FillListBox;
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end;
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procedure TcxPredefinedStyleSheetsList.StyleSheetsListBoxClick(Sender: TObject);
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begin
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UpdateButton;
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if FPreview <> nil then
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FPreview.SetStyleSheet(CurrentStyleSheet);
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end;
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procedure ShowLoadStyleSheetsFromIniFile(const AIniFileName: string;
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AStyleRepository: TcxStyleRepository;
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AOwner: TComponent; const AStyleSheetList: TList;
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AStyleGetName: TcxStyleGetName);
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procedure SelectAllItems(AForm: TfrmcxStyleSheetsLoad);
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//{$IFNDEF DELPHI6}
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var
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I: Integer;
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//{$ENDIF}
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begin
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// {$IFDEF DELPHI6}
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// AForm.lbStyleSheets.SelectAll;
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// {$ELSE}
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for I := 0 to AForm.lbStyleSheets.Items.Count - 1 do
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AForm.lbStyleSheets.Selected[I] := True;
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// {$ENDIF}
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end;
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var
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AForm: TfrmcxStyleSheetsLoad;
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I: Integer;
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AIniFile: TMemIniFile;
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AStrings: TStringList;
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begin
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AIniFile := TMemIniFile.Create(AIniFileName);
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AForm := TfrmcxStyleSheetsLoad.Create(nil);
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AForm.SetShowPreview(False);
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AStrings := TStringList.Create;
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try
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AIniFile.ReadSections(AForm.lbStyleSheets.Items);
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SelectAllItems(AForm);
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AForm.btnLoad.Enabled := (AForm.CurrentStyleSheetClass <> nil) and
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(AForm.lbStyleSheets.Items.Count > 0);
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AForm.ShowModal;
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if AForm.ModalResult = mrOk then
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begin
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for I := 0 to AForm.lbStyleSheets.Items.Count - 1 do
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if AForm.lbStyleSheets.Selected[I] then
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AStrings.Add(AForm.lbStyleSheets.Items[I]);
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LoadStyleSheetsFromIniFile(AIniFileName, AStyleRepository,
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AForm.CurrentStyleSheetClass,
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AStrings, AOwner, AStyleSheetList, AStyleGetName);
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end;
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finally
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AStrings.Free;
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AForm.Free;
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AIniFile.Free;
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end;
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end;
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procedure CreateStyleSheetByPredefine(AStyleRepository: TcxStyleRepository;
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AOwner: TComponent; const AStyleSheetList: TList;
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AStyleGetName: TcxStyleGetName; ASource: TcxCustomStyleSheet);
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var
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AStyleSheet: TcxCustomStyleSheet;
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begin
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AStyleSheet := AStyleRepository.CreateStyleSheetEx(TcxCustomStyleSheetClass(ASource.ClassType),
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AOwner);
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if AStyleSheetList <> nil then
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AStyleSheetList.Add(AStyleSheet);
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if AOwner.FindComponent(ASource.Name) = nil then
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AStyleSheet.Name := ASource.Name;
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AStyleSheet.Caption := ASource.Caption;
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CreateStyleSheetStyles(AStyleSheet, ASource, AStyleGetName);
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end;
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procedure ShowLoadStyleSheetsFromPreDefineStyles(AStyleRepository: TcxStyleRepository;
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AOwner: TComponent; const AStyleSheetList: TList;
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AStyleGetName: TcxStyleGetName);
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var
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AForm: TfrmcxStyleSheetsLoad;
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APredefinedList: TcxPredefinedStyleSheetsList;
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I: Integer;
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begin
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AForm := TfrmcxStyleSheetsLoad.Create(nil);
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APredefinedList := TcxPredefinedStyleSheetsList.Create(
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AForm.cbStyleSheetClasses, AForm.lbStyleSheets, AForm.btnLoad);
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try
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APredefinedList.FillListBox;
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AForm.ShowModal;
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if AForm.ModalResult = mrOk then
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begin
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for I := 0 to AForm.lbStyleSheets.Items.Count - 1 do
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if AForm.lbStyleSheets.Selected[I] then
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CreateStyleSheetByPredefine(AStyleRepository,
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AOwner, AStyleSheetList, AStyleGetName,
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TcxCustomStyleSheet(AForm.lbStyleSheets.Items.Objects[I]));
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end;
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finally
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APredefinedList.Free;
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AForm.Free;
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end;
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end;
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{ TfrmcxStyleSheetsLoad }
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constructor TfrmcxStyleSheetsLoad.Create(AOwner: TComponent);
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var
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I: Integer;
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AList: TList;
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StyleSheetClass: TcxCustomStyleSheetClass;
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begin
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inherited Create(AOwner);
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AList := TList.Create;
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try
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GetRegisteredStyleSheetClasses(AList);
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for I := 0 to AList.Count - 1 do
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begin
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StyleSheetClass := TcxCustomStyleSheetClass(AList[I]);
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cbStyleSheetClasses.Items.AddObject(StyleSheetClass.ClassName, TObject(StyleSheetClass));
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end;
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with cbStyleSheetClasses do
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if Items.Count > 0 then ItemIndex := 0;
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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 TfrmcxStyleSheetsLoad.CurrentStyleSheetClass: TcxCustomStyleSheetClass;
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begin
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with cbStyleSheetClasses do
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if ItemIndex > - 1 then
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Result := TcxCustomStyleSheetClass(Items.Objects[ItemIndex])
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else
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Result := nil;
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end;
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procedure TfrmcxStyleSheetsLoad.SetShowPreview(Value: Boolean);
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begin
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if pnlPreview.Visible <> Value then
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if Value then
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begin
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Constraints.MaxWidth := 0;
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ClientWidth := ClientWidth + pnlPreview.Width;
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pnlPreview.Visible := Value;
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end
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else
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begin
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pnlPreview.Visible := Value;
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ClientWidth := ClientWidth - pnlPreview.Width;
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Constraints.MaxWidth := Width;
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end;
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end;
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procedure TfrmcxStyleSheetsLoad.FormCreate(Sender: TObject);
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begin
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lbStyleSheetClass.Height := cbStyleSheetClasses.Height;
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lbPreview.Height := cbStyleSheetClasses.Height;
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end;
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end.
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