annotate org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet294.d @ 120:536e43f63c81

Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661 ===D2=== * added [Try]Immutable/Const/Shared templates to work with differenses in D1/D2 instead of version statements used these templates to work with strict type storage rules of dmd-2.053 * com.ibm.icu now also compilable with D2, but not tested yet * small fixes Snippet288 - shared data is in TLS ===Phobos=== * fixed critical bugs in Phobos implemention completely incorrect segfault prone fromStringz (Linux's port ruthless killer) terrible, incorrect StringBuffer realization (StyledText killer) * fixed small bugs as well Snippet72 - misprint in the snippet * implemented missed functionality for Phobos ByteArrayOutputStream implemented (image loading available) formatting correctly works for all DWT's cases As a result, folowing snippets now works with Phobos (Snippet### - what is fixed): Snippet24, 42, 111, 115, 130, 235, 276 - bad string formatting Snippet48, 282 - crash on image loading Snippet163, 189, 211, 213, 217, 218, 222 - crash on copy/cut in StyledText Snippet244 - hang-up ===Tango=== * few changes for the latest Tango trunc-r5661 * few small performance improvments ===General=== * implMissing-s for only one version changed to implMissingInTango/InPhobos * incorrect calls to Format in toString-s fixed * fixed loading \uXXXX characters in ResourceBundle * added good UTF-8 support for StyledText, TextLayout (Win32) and friends UTF functions revised and tested. It is now in java.nonstandard.*Utf modules StyledText and TextLayout (Win32) modules revised for UTF-8 support * removed small diferences in most identical files in *.swt.* folders *.swt.internal.image, *.swt.events and *.swt.custom are identical in Win32/Linux32 now 179 of 576 (~31%) files in *.swt.* folders are fully identical * Win32: snippets now have right subsystem, pretty icons and native system style controls * small fixes in snippets Snippet44 - it's not Snippet44 Snippet212 - functions work with different images and offsets arrays Win32: Snippet282 - crash on close if the button has an image Snippet293 - setGrayed is commented and others Win32: As a result, folowing snippets now works Snippet68 - color doesn't change Snippet163, 189, 211, 213, 217, 218, 222 - UTF-8 issues (see above) Snippet193 - no tabel headers
author Denis Shelomovskij <verylonglogin.reg@gmail.com>
date Sat, 09 Jul 2011 15:50:20 +0300
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 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.Snippet294;
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15 /*
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16 * Region on a control: create a non-rectangular button
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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 3.4
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22 */
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23 import org.eclipse.swt.SWT;
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24 import org.eclipse.swt.graphics.Image;
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25 import org.eclipse.swt.graphics.Region;
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26 import org.eclipse.swt.layout.FillLayout;
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27 import org.eclipse.swt.widgets.Button;
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28 import org.eclipse.swt.widgets.Display;
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29 import org.eclipse.swt.widgets.Event;
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30 import org.eclipse.swt.widgets.Listener;
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31 import org.eclipse.swt.widgets.Shell;
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32
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33 import java.lang.all;
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34 version(Tango){
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35 import tango.util.Convert;
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36 } else { // Phobos
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37 import std.conv;
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38 }
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40 int[] circle(int r, int offsetX, int offsetY) {
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41 int[] polygon = new int[8 * r + 4];
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42 // x^2 + y^2 = r^2
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43 for (int i = 0; i < 2 * r + 1; i++) {
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44 int x = i - r;
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45 int y = cast(int)Math.sqrt(cast(real)(r*r - x*x));
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46 polygon[2*i] = offsetX + x;
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47 polygon[2*i+1] = offsetY + y;
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48 polygon[8*r - 2*i - 2] = offsetX + x;
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49 polygon[8*r - 2*i - 1] = offsetY - y;
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50 }
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51 return polygon;
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52 }
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54 void main() {
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55 Display display = new Display();
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56 Shell shell = new Shell(display);
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57 shell.setText("Regions on a Control");
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58 shell.setLayout(new FillLayout());
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59 shell.setBackground(display.getSystemColor(SWT.COLOR_DARK_RED));
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61 Button b2 = new Button(shell, SWT.PUSH);
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62 b2.setText("Button with Regions");
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64 // define a region that looks like a circle with two holes in ot
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65 Region region = new Region();
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66 region.add(circle(67, 87, 77));
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67 region.subtract(circle(20, 87, 47));
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68 region.subtract(circle(20, 87, 113));
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70 // define the shape of the button using setRegion
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71 b2.setRegion(region);
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72 b2.setLocation(100,50);
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74 b2.addListener(SWT.Selection, new class Listener {
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75 public void handleEvent(Event e) {
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76 shell.close();
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77 }
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78 });
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80 shell.setSize(200,200);
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81 shell.open();
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83 while (!shell.isDisposed()) {
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84 if (!display.readAndDispatch())
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85 display.sleep();
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86 }
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87 region.dispose();
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88 display.dispose();
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89 }