Mercurial > projects > dwt2
diff org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet208.d @ 28:69b1fa94a4a8
Added SWT snippets
author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 22 Mar 2009 15:17:04 +0100 |
parents | |
children | 4e5843b771cc |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet208.d Sun Mar 22 15:17:04 2009 +0100 @@ -0,0 +1,114 @@ +/******************************************************************************* + * Copyright (c) 2000, 2005 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 + * D Port: + * Thomas Demmer <t_demmer AT web DOT de> + *******************************************************************************/ +module org.eclipse.swt.snippets.Snippet208; + +/* + * Change hue, saturation and brightness of a color + * + * For a list of all SWT example snippets see + * http://www.eclipse.org/swt/snippets/ + * + * @since 3.2 + */ +import org.eclipse.swt.SWT; +import org.eclipse.swt.graphics.Image; +import org.eclipse.swt.graphics.ImageData; +import org.eclipse.swt.graphics.RGB; +import org.eclipse.swt.graphics.PaletteData; +import org.eclipse.swt.layout.GridData; +import org.eclipse.swt.layout.GridLayout; +import org.eclipse.swt.widgets.Display; +import org.eclipse.swt.widgets.Label; +import org.eclipse.swt.widgets.Shell; + +import java.lang.all; + +void main (String [] args) { + PaletteData palette = new PaletteData(0xff, 0xff00, 0xff0000); + + // ImageData showing variations of hue + ImageData hueData = new ImageData(360, 100, 24, palette); + float hue = 0; + for (int x = 0; x < hueData.width; x++) { + for (int y = 0; y < hueData.height; y++) { + int pixel = palette.getPixel(new RGB(hue, 1f, 1f)); + hueData.setPixel(x, y, pixel); + } + hue += 360f / hueData.width; + } + + // ImageData showing saturation on x axis and brightness on y axis + ImageData saturationBrightnessData = new ImageData(360, 360, 24, palette); + float saturation = 0f; + float brightness = 1f; + for (int x = 0; x < saturationBrightnessData.width; x++) { + brightness = 1f; + for (int y = 0; y < saturationBrightnessData.height; y++) { + int pixel = palette.getPixel(new RGB(360f, saturation, brightness)); + saturationBrightnessData.setPixel(x, y, pixel); + brightness -= 1f / saturationBrightnessData.height; + } + saturation += 1f / saturationBrightnessData.width; + } + + Display display = new Display(); + Image hueImage = new Image(display, hueData); + Image saturationImage = new Image(display, saturationBrightnessData); + Shell shell = new Shell(display); + shell.setText("Hue, Saturation, Brightness"); + GridLayout gridLayout = new GridLayout(2, false); + gridLayout.verticalSpacing = 10; + gridLayout.marginWidth = gridLayout.marginHeight = 16; + shell.setLayout(gridLayout); + + Label label = new Label(shell, SWT.CENTER); + label.setImage(hueImage); + GridData data = new GridData(SWT.RIGHT, DWT.CENTER, false, false, 2, 1); + label.setLayoutData(data); + + label = new Label(shell, SWT.CENTER); //spacer + label = new Label(shell, SWT.CENTER); + label.setText("Hue"); + data = new GridData(SWT.CENTER, DWT.CENTER, false, false); + label.setLayoutData(data); + label = new Label(shell, SWT.CENTER); //spacer + data = new GridData(SWT.CENTER, DWT.CENTER, false, false, 2, 1); + label.setLayoutData(data); + + label = new Label(shell, SWT.LEFT); + label.setText("Brightness"); + data = new GridData(SWT.LEFT, DWT.CENTER, false, false); + label.setLayoutData(data); + + label = new Label(shell, SWT.CENTER); + label.setImage(saturationImage); + data = new GridData(SWT.CENTER, DWT.CENTER, false, false); + label.setLayoutData (data); + + label = new Label(shell, SWT.CENTER); //spacer + label = new Label(shell, SWT.CENTER); + label.setText("Saturation"); + data = new GridData(SWT.CENTER, DWT.CENTER, false, false); + label.setLayoutData(data); + + shell.pack(); + shell.open(); + while (!shell.isDisposed()) { + if (!display.readAndDispatch()) { + display.sleep(); + } + } + hueImage.dispose(); + saturationImage.dispose(); + display.dispose(); +}