Mercurial > projects > dwt-samples
view snippets/color/Snippet208.d @ 117:8cdaac0dc743
Added more snippets from TomD
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 12 Jul 2008 20:09:06 +0200 |
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/******************************************************************************* * 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 color.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 dwt.DWT; import dwt.graphics.Image; import dwt.graphics.ImageData; import dwt.graphics.RGB; import dwt.graphics.PaletteData; import dwt.layout.GridData; import dwt.layout.GridLayout; import dwt.widgets.Display; import dwt.widgets.Label; import dwt.widgets.Shell; import dwt.dwthelper.utils; 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, DWT.CENTER); label.setImage(hueImage); GridData data = new GridData(DWT.RIGHT, DWT.CENTER, false, false, 2, 1); label.setLayoutData(data); label = new Label(shell, DWT.CENTER); //spacer label = new Label(shell, DWT.CENTER); label.setText("Hue"); data = new GridData(DWT.CENTER, DWT.CENTER, false, false); label.setLayoutData(data); label = new Label(shell, DWT.CENTER); //spacer data = new GridData(DWT.CENTER, DWT.CENTER, false, false, 2, 1); label.setLayoutData(data); label = new Label(shell, DWT.LEFT); label.setText("Brightness"); data = new GridData(DWT.LEFT, DWT.CENTER, false, false); label.setLayoutData(data); label = new Label(shell, DWT.CENTER); label.setImage(saturationImage); data = new GridData(DWT.CENTER, DWT.CENTER, false, false); label.setLayoutData (data); label = new Label(shell, DWT.CENTER); //spacer label = new Label(shell, DWT.CENTER); label.setText("Saturation"); data = new GridData(DWT.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(); }