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Diffstat (limited to 'examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet48.java')
-rw-r--r--examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet48.java119
1 files changed, 0 insertions, 119 deletions
diff --git a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet48.java b/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet48.java
deleted file mode 100644
index f63ba7750e..0000000000
--- a/examples/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet48.java
+++ /dev/null
@@ -1,119 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 2000, 2004 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
- *******************************************************************************/
-package org.eclipse.swt.snippets;
-
-/*
- * Canvas example snippet: scroll an image (flicker free, no double buffering)
- *
- * For a list of all SWT example snippets see
- * http://www.eclipse.org/swt/snippets/
- */
-import org.eclipse.swt.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.layout.*;
-import org.eclipse.swt.widgets.*;
-
-public class Snippet48 {
-
-public static void main (String [] args) {
- Display display = new Display ();
- Shell shell = new Shell (display);
- shell.setLayout(new FillLayout());
- Image originalImage = null;
- FileDialog dialog = new FileDialog (shell, SWT.OPEN);
- dialog.setText ("Open an image file or cancel");
- String string = dialog.open ();
- if (string != null) {
- originalImage = new Image (display, string);
- }
- if (originalImage == null) {
- int width = 150, height = 200;
- originalImage = new Image (display, width, height);
- GC gc = new GC (originalImage);
- gc.fillRectangle (0, 0, width, height);
- gc.drawLine (0, 0, width, height);
- gc.drawLine (0, height, width, 0);
- gc.drawText ("Default Image", 10, 10);
- gc.dispose ();
- }
- final Image image = originalImage;
- final Point origin = new Point (0, 0);
- final Canvas canvas = new Canvas (shell, SWT.NO_BACKGROUND |
- SWT.NO_REDRAW_RESIZE | SWT.V_SCROLL | SWT.H_SCROLL);
- final ScrollBar hBar = canvas.getHorizontalBar ();
- hBar.addListener (SWT.Selection, new Listener () {
- public void handleEvent (Event e) {
- int hSelection = hBar.getSelection ();
- int destX = -hSelection - origin.x;
- Rectangle rect = image.getBounds ();
- canvas.scroll (destX, 0, 0, 0, rect.width, rect.height, false);
- origin.x = -hSelection;
- }
- });
- final ScrollBar vBar = canvas.getVerticalBar ();
- vBar.addListener (SWT.Selection, new Listener () {
- public void handleEvent (Event e) {
- int vSelection = vBar.getSelection ();
- int destY = -vSelection - origin.y;
- Rectangle rect = image.getBounds ();
- canvas.scroll (0, destY, 0, 0, rect.width, rect.height, false);
- origin.y = -vSelection;
- }
- });
- canvas.addListener (SWT.Resize, new Listener () {
- public void handleEvent (Event e) {
- Rectangle rect = image.getBounds ();
- Rectangle client = canvas.getClientArea ();
- hBar.setMaximum (rect.width);
- vBar.setMaximum (rect.height);
- hBar.setThumb (Math.min (rect.width, client.width));
- vBar.setThumb (Math.min (rect.height, client.height));
- int hPage = rect.width - client.width;
- int vPage = rect.height - client.height;
- int hSelection = hBar.getSelection ();
- int vSelection = vBar.getSelection ();
- if (hSelection >= hPage) {
- if (hPage <= 0) hSelection = 0;
- origin.x = -hSelection;
- }
- if (vSelection >= vPage) {
- if (vPage <= 0) vSelection = 0;
- origin.y = -vSelection;
- }
- canvas.redraw ();
- }
- });
- canvas.addListener (SWT.Paint, new Listener () {
- public void handleEvent (Event e) {
- GC gc = e.gc;
- gc.drawImage (image, origin.x, origin.y);
- Rectangle rect = image.getBounds ();
- Rectangle client = canvas.getClientArea ();
- int marginWidth = client.width - rect.width;
- if (marginWidth > 0) {
- gc.fillRectangle (rect.width, 0, marginWidth, client.height);
- }
- int marginHeight = client.height - rect.height;
- if (marginHeight > 0) {
- gc.fillRectangle (0, rect.height, client.width, marginHeight);
- }
- }
- });
- shell.setSize (200, 150);
- shell.open ();
- while (!shell.isDisposed ()) {
- if (!display.readAndDispatch ()) display.sleep ();
- }
- originalImage.dispose();
- display.dispose ();
-}
-
-}

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