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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2005 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * D Port:
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11 * Thomas Demmer <t_demmer AT web DOT de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.snippets.Snippet214;
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14
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15 /*
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16 * Control example snippet: set a background image (a dynamic gradient)
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17 *
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18 * For a list of all SWT example snippets see
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19 * http://www.eclipse.org/swt/snippets/
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20 *
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21 * @since 3.2
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22 */
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23 import org.eclipse.swt.SWT;
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24
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25 import org.eclipse.swt.graphics.GC;
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26 import org.eclipse.swt.graphics.Image;
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27 import org.eclipse.swt.graphics.Rectangle;
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28 import org.eclipse.swt.layout.FillLayout;
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29 import org.eclipse.swt.layout.RowLayout;
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30 import org.eclipse.swt.widgets.Button;
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31 import org.eclipse.swt.widgets.Display;
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32 import org.eclipse.swt.widgets.Event;
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33 import org.eclipse.swt.widgets.Group;
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34 import org.eclipse.swt.widgets.Listener;
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35 import org.eclipse.swt.widgets.Shell;
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36 import org.eclipse.swt.layout.RowLayout;
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37
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38 import java.lang.all;
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39
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40 import tango.util.Convert;
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41
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42 static Image oldImage;
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43 void main(String [] args) {
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44 Display display = new Display ();
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45 Shell shell = new Shell (display);
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46 shell.setBackgroundMode (SWT.INHERIT_DEFAULT);
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47 FillLayout layout1 = new FillLayout (SWT.VERTICAL);
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48 layout1.marginWidth = layout1.marginHeight = 10;
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49 shell.setLayout (layout1);
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50 Group group = new Group (shell, SWT.NONE);
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51 group.setText ("Group ");
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52 RowLayout layout2 = new RowLayout (SWT.VERTICAL);
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53 layout2.marginWidth = layout2.marginHeight = layout2.spacing = 10;
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54 group.setLayout (layout2);
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55 for (int i=0; i<8; i++) {
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56 Button button = new Button (group, SWT.RADIO);
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57 button.setText ("Button " ~ to!(char[])(i));
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58 }
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59 shell.addListener (SWT.Resize, new class() Listener {
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60 public void handleEvent (Event event) {
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61 Rectangle rect = shell.getClientArea ();
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62 Image newImage = new Image (display, Math.max (1, rect.width), 1);
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63 GC gc = new GC (newImage);
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64 gc.setForeground (display.getSystemColor (SWT.COLOR_WHITE));
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65 gc.setBackground (display.getSystemColor (SWT.COLOR_BLUE));
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66 gc.fillGradientRectangle (rect.x, rect.y, rect.width, 1, false);
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67 gc.dispose ();
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68 shell.setBackgroundImage (newImage);
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69 if (oldImage !is null) oldImage.dispose ();
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70 oldImage = newImage;
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71 }
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72 });
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73 shell.pack ();
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74 shell.open ();
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75 while (!shell.isDisposed ()) {
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76 if (!display.readAndDispatch ()) display.sleep ();
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77 }
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78 if (oldImage !is null) oldImage.dispose ();
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79 display.dispose ();
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80 }
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81
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