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Diffstat (limited to 'examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet139.java')
-rw-r--r-- | examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet139.java | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet139.java b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet139.java deleted file mode 100644 index 710d5c1fcd..0000000000 --- a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet139.java +++ /dev/null @@ -1,137 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2004 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.swt.snippets; - -/* - * This snippet was adapted from org.eclipse.draw2d.ImageUtilities in - * http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.draw2d/?cvsroot=Tools_Project - * by Pratik Shah. - * - * example snippet: rotate and flip an image - * - * For a list of all SWT example snippets see - * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets - */ -import org.eclipse.swt.*; -import org.eclipse.swt.events.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.widgets.*; - -public class Snippet139 { - -static ImageData rotate(ImageData srcData, int direction) { - int bytesPerPixel = srcData.bytesPerLine / srcData.width; - int destBytesPerLine = (direction == SWT.DOWN)? srcData.width * bytesPerPixel : srcData.height * bytesPerPixel; - byte[] newData = new byte[srcData.data.length]; - int width = 0, height = 0; - for (int srcY = 0; srcY < srcData.height; srcY++) { - for (int srcX = 0; srcX < srcData.width; srcX++) { - int destX = 0, destY = 0, destIndex = 0, srcIndex = 0; - switch (direction){ - case SWT.LEFT: // left 90 degrees - destX = srcY; - destY = srcData.width - srcX - 1; - width = srcData.height; - height = srcData.width; - break; - case SWT.RIGHT: // right 90 degrees - destX = srcData.height - srcY - 1; - destY = srcX; - width = srcData.height; - height = srcData.width; - break; - case SWT.DOWN: // 180 degrees - destX = srcData.width - srcX - 1; - destY = srcData.height - srcY - 1; - width = srcData.width; - height = srcData.height; - break; - } - destIndex = (destY * destBytesPerLine) + (destX * bytesPerPixel); - srcIndex = (srcY * srcData.bytesPerLine) + (srcX * bytesPerPixel); - System.arraycopy(srcData.data, srcIndex, newData, destIndex, bytesPerPixel); - } - } - // destBytesPerLine is used as scanlinePad to ensure that no padding is required - return new ImageData(width, height, srcData.depth, srcData.palette, destBytesPerLine, newData); -} -static ImageData flip(ImageData srcData, boolean vertical) { - int bytesPerPixel = srcData.bytesPerLine / srcData.width; - int destBytesPerLine = srcData.width * bytesPerPixel; - byte[] newData = new byte[srcData.data.length]; - for (int srcY = 0; srcY < srcData.height; srcY++) { - for (int srcX = 0; srcX < srcData.width; srcX++) { - int destX = 0, destY = 0, destIndex = 0, srcIndex = 0; - if (vertical){ - destX = srcX; - destY = srcData.height - srcY - 1; - } else { - destX = srcData.width - srcX - 1; - destY = srcY; - } - destIndex = (destY * destBytesPerLine) + (destX * bytesPerPixel); - srcIndex = (srcY * srcData.bytesPerLine) + (srcX * bytesPerPixel); - System.arraycopy(srcData.data, srcIndex, newData, destIndex, bytesPerPixel); - } - } - // destBytesPerLine is used as scanlinePad to ensure that no padding is required - return new ImageData(srcData.width, srcData.height, srcData.depth, srcData.palette, destBytesPerLine, newData); -} - -public static void main(String[] args) { - Display display = new Display(); - - // create an image with the word "hello" on it - final Image image0 = new Image(display, 50, 30); - GC gc = new GC(image0); - gc.setBackground(display.getSystemColor(SWT.COLOR_RED)); - gc.fillRectangle(image0.getBounds()); - gc.drawString("hello", 5, 5, true); - gc.dispose(); - - ImageData data = image0.getImageData(); - // rotate and flip this image - final Image image1 = new Image(display, rotate(data, SWT.LEFT)); - final Image image2 = new Image(display, rotate(data, SWT.RIGHT)); - final Image image3 = new Image(display, rotate(data, SWT.DOWN)); - final Image image4 = new Image(display, flip(data, true)); - final Image image5 = new Image(display, flip(data, false)); - - Shell shell = new Shell(display); - // draw the results on the shell - shell.addPaintListener(new PaintListener(){ - public void paintControl(PaintEvent e) { - e.gc.drawText("Original Image:", 10, 10, true); - e.gc.drawImage(image0, 10, 40); - e.gc.drawText("Left, Right, 180:", 10, 80, true); - e.gc.drawImage(image1, 10, 110); - e.gc.drawImage(image2, 50, 110); - e.gc.drawImage(image3, 90, 110); - e.gc.drawText("Flipped Vertical, Horizontal:", 10, 170, true); - e.gc.drawImage(image4, 10, 200); - e.gc.drawImage(image5, 70, 200); - } - }); - shell.setSize(300, 300); - shell.open(); - while (!shell.isDisposed()) { - if (!display.readAndDispatch()) - display.sleep(); - } - image0.dispose(); - image1.dispose(); - image2.dispose(); - image3.dispose(); - image4.dispose(); - image5.dispose(); - display.dispose(); -} -} |