| /******************************************************************************* |
| * Copyright (c) 2007, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ui.internal; |
| |
| import org.eclipse.swt.graphics.GC; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.graphics.Rectangle; |
| import org.eclipse.swt.widgets.Shell; |
| |
| /** |
| * Creates an animation effect where the Shell's image is captured and |
| * over-lain (in its own shell) on top of the real one. This image |
| * masks the changes to the 'real' shell and then the covering image |
| * fades to transparent, revealing the new state. |
| * |
| * This provides a nice cross-fade effect for operations like a |
| * perspective change (where the overall effect on the shell is large. |
| * |
| * @since 3.3 |
| * |
| */ |
| public class FaderAnimationFeedback extends AnimationFeedbackBase { |
| private Image backingStore; |
| static boolean useCopy = true; |
| |
| public FaderAnimationFeedback(Shell parentShell) { |
| super(parentShell); |
| } |
| |
| public void dispose() { |
| super.dispose(); |
| |
| if (!backingStore.isDisposed()) |
| backingStore.dispose(); |
| } |
| |
| // private static Image printImage(Control control) { |
| // Rectangle r = control.getBounds(); |
| // final Image image = new Image(control.getDisplay(), r.width, r.height); |
| // GC gc = new GC(image); |
| // int hDC = gc.handle; |
| // int hwnd = control.handle; |
| // int bits = OS.GetWindowLong (hwnd, OS.GWL_STYLE); |
| // if ((bits & OS.WS_VISIBLE) == 0) { |
| // OS.DefWindowProc(hwnd, OS.WM_SETREDRAW, 1, 0); |
| // } |
| // OS.RedrawWindow (hwnd, null, 0, OS.RDW_UPDATENOW | OS.RDW_ALLCHILDREN); |
| // final long t0 = System.currentTimeMillis(); |
| // OS.PrintWindow (hwnd, hDC, 0); |
| // final long t1 = System.currentTimeMillis(); |
| // System.out.println("Time: " + (t1 - t0) + " ms"); //$NON-NLS-1$ //$NON-NLS-2$ |
| // if ((bits & OS.WS_VISIBLE) == 0) { |
| // OS.DefWindowProc(hwnd, OS.WM_SETREDRAW, 0, 0); |
| // } |
| // gc.dispose(); |
| // |
| // return image; |
| // } |
| |
| public void initialize(AnimationEngine engine) { |
| Rectangle psRect = getBaseShell().getBounds(); |
| getAnimationShell().setBounds(psRect); |
| |
| // Capture the background image |
| System.out.println("Start time = " + System.currentTimeMillis()); //$NON-NLS-1$ |
| if (useCopy) { |
| backingStore = new Image(getAnimationShell().getDisplay(), psRect); |
| GC gc = new GC(getAnimationShell()); |
| gc.copyArea(backingStore, psRect.x, psRect.y); |
| gc.dispose(); |
| } |
| else { |
| System.out.println("use printImage"); //$NON-NLS-1$ |
| //backingStore = printImage(getAnimationShell()); |
| } |
| |
| getAnimationShell().setAlpha(254); |
| getAnimationShell().setBackgroundImage(backingStore); |
| getAnimationShell().setVisible(true); |
| System.out.println("End time = " + System.currentTimeMillis()); //$NON-NLS-1$ |
| //display.update(); |
| |
| } |
| |
| public void renderStep(AnimationEngine engine) { |
| getAnimationShell().setAlpha((int) (255 - (engine.amount()*255))); |
| } |
| |
| } |