Mega Code Archive
Create a color cursor from a source and a mask
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/*******************************************************************************
* 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
*******************************************************************************/
/*
* Cursor example snippet: create a color cursor from a source and a mask
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*
* @since 3.0
*/
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Cursor;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.PaletteData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class CursorFromSourceMask {
static byte[] srcData = { (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x00, (byte) 0x00,
(byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x10, (byte) 0x00, (byte) 0x01,
(byte) 0x10, (byte) 0x00, (byte) 0x01, (byte) 0x11, (byte) 0x11, (byte) 0x00, (byte) 0x22,
(byte) 0x01, (byte) 0x10, (byte) 0x33, (byte) 0x00, (byte) 0x11, (byte) 0x10, (byte) 0x02,
(byte) 0x22, (byte) 0x01, (byte) 0x10, (byte) 0x33, (byte) 0x30, (byte) 0x01, (byte) 0x10,
(byte) 0x22, (byte) 0x22, (byte) 0x01, (byte) 0x10, (byte) 0x33, (byte) 0x33, (byte) 0x01,
(byte) 0x10, (byte) 0x22, (byte) 0x22, (byte) 0x01, (byte) 0x10, (byte) 0x33, (byte) 0x33,
(byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
(byte) 0x00, (byte) 0x00, (byte) 0x01, (byte) 0x11, (byte) 0x11, (byte) 0x01, (byte) 0x10,
(byte) 0x11, (byte) 0x11, (byte) 0x10, (byte) 0x01, (byte) 0x11, (byte) 0x11, (byte) 0x01,
(byte) 0x10, (byte) 0x11, (byte) 0x11, (byte) 0x10, (byte) 0x00, (byte) 0x00, (byte) 0x00,
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x10, (byte) 0x44,
(byte) 0x44, (byte) 0x01, (byte) 0x10, (byte) 0x55, (byte) 0x55, (byte) 0x01, (byte) 0x10,
(byte) 0x44, (byte) 0x44, (byte) 0x01, (byte) 0x10, (byte) 0x55, (byte) 0x55, (byte) 0x01,
(byte) 0x10, (byte) 0x04, (byte) 0x44, (byte) 0x01, (byte) 0x10, (byte) 0x55, (byte) 0x50,
(byte) 0x01, (byte) 0x11, (byte) 0x00, (byte) 0x44, (byte) 0x01, (byte) 0x10, (byte) 0x55,
(byte) 0x00, (byte) 0x11, (byte) 0x11, (byte) 0x10, (byte) 0x00, (byte) 0x01, (byte) 0x10,
(byte) 0x00, (byte) 0x01, (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x00,
(byte) 0x00, (byte) 0x11, (byte) 0x11, (byte) 0x11, };
static byte[] mskData = { (byte) 0x03, (byte) 0xc0, (byte) 0x1f, (byte) 0xf8, (byte) 0x3f,
(byte) 0xfc, (byte) 0x7f, (byte) 0xfe, (byte) 0x7f, (byte) 0xfe, (byte) 0x7f, (byte) 0xfe,
(byte) 0xff, (byte) 0xff, (byte) 0xfe, (byte) 0x7f, (byte) 0xfe, (byte) 0x7f, (byte) 0xff,
(byte) 0xff, (byte) 0x7f, (byte) 0xfe, (byte) 0x7f, (byte) 0xfe, (byte) 0x7f, (byte) 0xfe,
(byte) 0x3f, (byte) 0xfc, (byte) 0x1f, (byte) 0xf8, (byte) 0x03, (byte) 0xc0 };
public static void main(String[] args) {
Display display = new Display();
Color white = display.getSystemColor(SWT.COLOR_WHITE);
Color black = display.getSystemColor(SWT.COLOR_BLACK);
Color yellow = display.getSystemColor(SWT.COLOR_YELLOW);
Color red = display.getSystemColor(SWT.COLOR_RED);
Color green = display.getSystemColor(SWT.COLOR_GREEN);
Color blue = display.getSystemColor(SWT.COLOR_BLUE);
// Create a source ImageData of depth 4
PaletteData palette = new PaletteData(new RGB[] { black.getRGB(), white.getRGB(),
yellow.getRGB(), red.getRGB(), blue.getRGB(), green.getRGB() });
ImageData sourceData = new ImageData(16, 16, 4, palette, 1, srcData);
// Create a mask ImageData of depth 1 (monochrome)
palette = new PaletteData(new RGB[] { black.getRGB(), white.getRGB(), });
ImageData maskData = new ImageData(16, 16, 1, palette, 1, mskData);
// Set mask
sourceData.maskData = maskData.data;
sourceData.maskPad = maskData.scanlinePad;
// Create cursor
Cursor cursor = new Cursor(display, sourceData, 10, 10);
// Remove mask to draw them separately just to show what they look like
sourceData.maskData = null;
sourceData.maskPad = -1;
Shell shell = new Shell(display);
final Image source = new Image(display, sourceData);
final Image mask = new Image(display, maskData);
shell.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
GC gc = e.gc;
int x = 10, y = 10;
String stringSource = "source: ";
String stringMask = "mask: ";
gc.drawString(stringSource, x, y);
gc.drawString(stringMask, x, y + 30);
x += Math.max(gc.stringExtent(stringSource).x, gc.stringExtent(stringMask).x);
gc.drawImage(source, x, y);
gc.drawImage(mask, x, y + 30);
}
});
shell.setSize(150, 150);
shell.open();
shell.setCursor(cursor);
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
cursor.dispose();
source.dispose();
mask.dispose();
display.dispose();
}
}
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