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Diffstat (limited to 'examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/graphics/InterpolationTab.java')
| -rw-r--r-- | examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/graphics/InterpolationTab.java | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/graphics/InterpolationTab.java b/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/graphics/InterpolationTab.java deleted file mode 100644 index d9eef86ca3..0000000000 --- a/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/graphics/InterpolationTab.java +++ /dev/null @@ -1,196 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2006 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.examples.graphics; - -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.layout.*; -import org.eclipse.swt.widgets.*; - -/** - * This tab shows the effects of applying various interpolation algorithms to - * images that have been stretched or shrunk. - */ -public class InterpolationTab extends GraphicsTab { - - Combo imageCb; // combo for selecting images - -public InterpolationTab(GraphicsExample example) { - super(example); -} - -public String getCategory() { - return GraphicsExample.getResourceString("Image"); //$NON-NLS-1$ -} - -public String getText() { - return GraphicsExample.getResourceString("Interpolation"); //$NON-NLS-1$ -} - -public String getDescription() { - return GraphicsExample.getResourceString("ImageInterpolationDesc"); //$NON-NLS-1$ -} - -public void createControlPanel(Composite parent) { - - Composite comp; - GridLayout gridLayout = new GridLayout(2, false); - - // create drop down combo - comp = new Composite(parent, SWT.NONE); - comp.setLayout(gridLayout); - new Label(comp, SWT.CENTER).setText(GraphicsExample - .getResourceString("Image")); //$NON-NLS-1$ - imageCb = new Combo(comp, SWT.DROP_DOWN); - imageCb.add(GraphicsExample.getResourceString("House")); //$NON-NLS-1$ - imageCb.add(GraphicsExample.getResourceString("Question")); //$NON-NLS-1$ - imageCb.add(GraphicsExample.getResourceString("Task")); //$NON-NLS-1$ - imageCb.add(GraphicsExample.getResourceString("Font")); //$NON-NLS-1$ - imageCb.add(GraphicsExample.getResourceString("Cube")); //$NON-NLS-1$ - imageCb.add(GraphicsExample.getResourceString("SWT")); //$NON-NLS-1$ - imageCb.add(GraphicsExample.getResourceString("Ovals")); //$NON-NLS-1$ - imageCb.select(0); - imageCb.addListener(SWT.Selection, new Listener() { - public void handleEvent(Event event) { - example.redraw(); - } - }); -} - -public void paint(GC gc, int width, int height) { - if (!example.checkAdvancedGraphics()) return; - Device device = gc.getDevice(); - - float scaleX = 10f; - float scaleY = 10f; - Image image = null; - switch (imageCb.getSelectionIndex()) { - - case 0: - image = GraphicsExample.loadImage(device, GraphicsExample.class, "home_nav.gif"); - break; - case 1: - image = GraphicsExample.loadImage(device, GraphicsExample.class, "help.gif"); - break; - case 2: - image = GraphicsExample.loadImage(device, GraphicsExample.class, "task.gif"); - break; - case 3: - image = GraphicsExample.loadImage(device, GraphicsExample.class, "font.gif"); - break; - case 4: - image = GraphicsExample.loadImage(device, GraphicsExample.class, "cube.png"); - scaleX = 0.75f; - scaleY = 0.5f; - break; - case 5: - image = GraphicsExample.loadImage(device, GraphicsExample.class, "swt.png"); - scaleX = 0.4f; - scaleY = 0.8f; - break; - case 6: - image = GraphicsExample.loadImage(device, GraphicsExample.class, "ovals.png"); - scaleX = 1.1f; - scaleY = 0.5f; - break; - } - - Rectangle bounds = image.getBounds(); - - // draw the original image - gc.drawImage(image, (width-bounds.width)/2, 20); - - Font font = new Font(device, getPlatformFont(), 20, SWT.NORMAL); - gc.setFont(font); - - // write some text below the original image - String text = GraphicsExample.getResourceString("OriginalImg"); //$NON-NLS-1$ - Point size = gc.stringExtent(text); - gc.drawString(text, (width-size.x)/2, 25 + bounds.height, true); - - Transform transform = new Transform(device); - transform.translate((width - (bounds.width * scaleX + 10) * 4) / 2, 25 + bounds.height + size.y + - (height - (25 + bounds.height + size.y + bounds.height*scaleY)) / 2); - transform.scale(scaleX, scaleY); - - // --- draw strings --- - float[] point = new float[2]; - text = GraphicsExample.getResourceString("None"); //$NON-NLS-1$ - size = gc.stringExtent(text); - point[0] = (scaleX*bounds.width + 5 - size.x)/(2*scaleX); - point[1] = bounds.height; - transform.transform(point); - gc.drawString(text, (int)point[0], (int)point[1], true); - - text = GraphicsExample.getResourceString("Low"); //$NON-NLS-1$ - size = gc.stringExtent(text); - point[0] = (scaleX*bounds.width + 5 - size.x)/(2*scaleX) + bounds.width; - point[1] = bounds.height; - transform.transform(point); - gc.drawString(text, (int)point[0], (int)point[1], true); - - text = GraphicsExample.getResourceString("Default"); //$NON-NLS-1$ - size = gc.stringExtent(text); - point[0] = (scaleX*bounds.width + 5 - size.x)/(2*scaleX) + 2*bounds.width; - point[1] = bounds.height; - transform.transform(point); - gc.drawString(text, (int)point[0], (int)point[1], true); - - text = GraphicsExample.getResourceString("High"); //$NON-NLS-1$ - size = gc.stringExtent(text); - point[0] = (scaleX*bounds.width + 5 - size.x)/(2*scaleX) + 3*bounds.width; - point[1] = bounds.height; - transform.transform(point); - gc.drawString(text, (int)point[0], (int)point[1], true); - - gc.setTransform(transform); - transform.dispose(); - - // --- draw images --- - - // no interpolation - gc.setInterpolation(SWT.NONE); - gc.drawImage(image, 0, 0); - - // low interpolation - gc.setInterpolation(SWT.LOW); - gc.drawImage(image, bounds.width, 0); - - // default interpolation - gc.setInterpolation(SWT.DEFAULT); - gc.drawImage(image, 2*bounds.width, 0); - - // high interpolation - gc.setInterpolation(SWT.HIGH); - gc.drawImage(image, 3*bounds.width, 0); - - font.dispose(); - if (image != null) image.dispose(); -} - -/** - * Returns the name of a valid font for the host platform. - */ -static String getPlatformFont() { - if(SWT.getPlatform() == "win32") { - return "Arial"; - } else if (SWT.getPlatform() == "motif") { - return "Helvetica"; - } else if (SWT.getPlatform() == "gtk") { - return "Baekmuk Batang"; - } else if (SWT.getPlatform() == "carbon") { - return "Arial"; - } else { // photon, etc ... - return "Verdana"; - } -} -} |