168 lines
5.5 KiB
ObjectPascal
168 lines
5.5 KiB
ObjectPascal
{*******************************************************************}
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{ }
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{ Developer Express Visual Component Library }
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{ ExpressPrinting System(tm) COMPONENT SUITE }
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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 EXPRESSPRINTINGSYSTEM AND }
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{ ALL ACCOMPANYING VCL CONTROLS AS PART OF AN }
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{ 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 dxPcPrVw;
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interface
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{$I cxVer.inc}
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uses
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Graphics;
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procedure dxShowPicturePreview(AGraphic: TGraphic);
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implementation
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uses
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Classes, SysUtils, Controls, ComCtrls, cxClasses, dxPSUtl, dxPSRes, dxPSImgs,
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dxPSForm, dxExtCtrls;
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type
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TdxfmPicturePreview = class(TCustomdxPSForm)
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private
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FPictureBox: TdxPSImageScrollBox;
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FStatusBar: TStatusBar;
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function GetGraphic: TGraphic;
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function GetHasGraphic: Boolean;
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protected
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procedure KeyPress(var Key: Char); override;
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procedure CreateControls;
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procedure UpdateControls;
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property Graphic: TGraphic read GetGraphic;
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property HasGraphic: Boolean read GetHasGraphic;
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public
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constructor CreateNew(AOwner: TComponent; Dummy: Integer = 0); override;
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procedure Execute(AGraphic: TGraphic);
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property PreviewBox: TdxPSImageScrollBox read FPictureBox;
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property StatusBar: TStatusBar read FStatusBar;
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end;
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procedure dxShowPicturePreview(AGraphic: TGraphic);
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begin
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with TdxfmPicturePreview.CreateNew(nil) do
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try
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Execute(AGraphic);
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finally
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Free;
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end;
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end;
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constructor TdxfmPicturePreview.CreateNew(AOwner: TComponent; Dummy: Integer = 0);
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begin
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inherited;
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Caption := cxGetResourceString(@sdxFSPCaption);
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Constraints.MinHeight := 200;
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Constraints.MinWidth := 200;
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Icon_LoadFromResourceName(Icon, IDB_DXPSPREVIEW);
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CreateControls;
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end;
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procedure TdxfmPicturePreview.Execute(AGraphic: TGraphic);
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begin
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PreviewBox.Picture.Assign(AGraphic);
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UpdateControls;
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ShowModal;
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end;
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procedure TdxfmPicturePreview.KeyPress(var Key: Char);
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begin
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if Key = #27 then
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Close
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else
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inherited;
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end;
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procedure TdxfmPicturePreview.CreateControls;
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begin
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FStatusBar := TStatusBar.Create(Self);
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with StatusBar do
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begin
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Parent := Self;
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Align := alBottom;
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with Panels.Add do Width := 250;
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with Panels.Add do Width := -1;
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end;
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FPictureBox := TdxPSImageScrollBox.Create(Self);
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with FPictureBox do
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begin
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Parent := Self;
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Align := alClient;
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BuiltInMenuItemsVisibility := BuiltInMenuItemsVisibility - [biiPreview];
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end;
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end;
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procedure TdxfmPicturePreview.UpdateControls;
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begin
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Width := 400;
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Height := 400;
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if HasGraphic then
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begin
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ClientWidth := Graphic.Width + 10;
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ClientHeight := Graphic.Height + StatusBar.Height + 10;
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with dxPSUtl.GetDesktopWorkArea do
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begin
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if Width > Right - Left then Width := Right - Left;
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if Height > Bottom - Top then Height := Bottom - Top;
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Self.Left := (Right - Left - Width) div 2;
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Self.Top := (Bottom - Top - Height) div 2;
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end;
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StatusBar.Panels[0].Text := Format('%s: %d %s: %d',
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[cxGetResourceString(@sdxWidth), Graphic.Width,
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cxGetResourceString(@sdxHeight), Graphic.Height]);
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end
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else
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PreviewBox.HintText := cxGetResourceString(@sdxNone);
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end;
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function TdxfmPicturePreview.GetGraphic: TGraphic;
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begin
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Result := PreviewBox.Picture.Graphic;
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end;
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function TdxfmPicturePreview.GetHasGraphic: Boolean;
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begin
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Result := PreviewBox.HasGraphic;
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end;
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end.
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