org.eclipse.swt.snippets.Snippet215 source code

1 #!/usr/bin/env dub
2 /+
3 dub.sdl:
4     name "snippet215"
5     dependency "dwt" path="../../../../../../"
6     libs \
7       "atk-1.0" \
8       "cairo" \
9       "dl" \
10       "fontconfig" \
11       "gdk-x11-2.0" \
12       "gdk_pixbuf-2.0" \
13       "glib-2.0" \
14       "gmodule-2.0" \
15       "gnomeui-2" \
16       "gnomevfs-2" \
17       "gobject-2.0" \
18       "gthread-2.0" \
19       "gtk-x11-2.0" \
20       "pango-1.0" \
21       "pangocairo-1.0" \
22       "X11" \
23       "Xcomposite" \
24       "Xcursor" \
25       "Xdamage" \
26       "Xext" \
27       "Xfixes" \
28       "Xi" \
29       "Xinerama" \
30       "Xrandr" \
31       "Xrender" \
32       "Xtst" \
33       platform="linux"
34 +/
35 
36 /*******************************************************************************
37  * Copyright (c) 2000, 2004 IBM Corporation and others.
38  * All rights reserved. This program and the accompanying materials
39  * are made available under the terms of the Eclipse Public License v1.0
40  * which accompanies this distribution, and is available at
41  * http://www.eclipse.org/legal/epl-v10.html
42  *
43  * Contributors:
44  *     IBM Corporation - initial API and implementation
45  * Port to the D programming language:
46  *     Bill Baxter <bill@billbaxter.com>
47  *******************************************************************************/
48 module org.eclipse.swt.snippets.Snippet215;
49 
50 /*
51  * GC example snippet: take a screen shot with a GC
52  *
53  * For a list of all SWT example snippets see
54  * http://www.eclipse.org/swt/snippets/
55  */
56 import org.eclipse.swt.SWT;
57 import org.eclipse.swt.graphics.GC;
58 import org.eclipse.swt.graphics.Image;
59 import org.eclipse.swt.widgets.Display;
60 import org.eclipse.swt.widgets.Shell;
61 import org.eclipse.swt.widgets.Listener;
62 import org.eclipse.swt.widgets.Event;
63 import org.eclipse.swt.widgets.Button;
64 import org.eclipse.swt.widgets.Canvas;
65 import org.eclipse.swt.custom.ScrolledComposite;
66 import org.eclipse.swt.layout.FillLayout;
67 import org.eclipse.swt.events.PaintListener;
68 
69 void main() {
70     Image image;
71     
72     Display display = new Display();
73     Shell shell = new Shell(display);
74     shell.setLayout(new FillLayout());
75     Button button = new Button(shell, SWT.PUSH);
76     button.setText("Capture");
77     button.addListener(SWT.Selection, new class Listener {
78         public void handleEvent(Event event) {
79 
80             /* Take the screen shot */
81             GC gc = new GC(display);
82             image = new Image(display, display.getBounds());
83             gc.copyArea(image, 0, 0);
84             gc.dispose();
85 
86             Shell popup = new Shell(shell, SWT.SHELL_TRIM);
87             popup.setLayout(new FillLayout());
88             popup.setText("Image");
89             popup.setBounds(50, 50, 200, 200);
90             popup.addListener(SWT.Close, new class Listener {
91                     public void handleEvent(Event e) {
92                         image.dispose();
93                     }
94                 });
95 
96             ScrolledComposite sc = new ScrolledComposite (popup, SWT.V_SCROLL | SWT.H_SCROLL);
97             Canvas canvas = new Canvas(sc, SWT.NONE);
98             sc.setContent(canvas);
99             canvas.setBounds(display.getBounds ());
100             canvas.addPaintListener(new class PaintListener {
101                     public void paintControl(PaintEvent e) {
102                         e.gc.drawImage(image, 0, 0);
103                     }
104                 });
105             popup.open();
106         }
107     });
108     shell.pack();
109     shell.open();
110     while (!shell.isDisposed()) {
111         if (!display.readAndDispatch()) display.sleep();
112     }
113     display.dispose();
114 }
115