Attachment 272988 Details for Bug 97506 – The SnippetScaling enhanced by AWT scaling

The SnippetScaling enhanced by AWT scaling

SnippetScalingWithAWT.java (text/plain), 11.86 KB, created by Conrad Groth

on 2018-03-03 08:46:08 EST

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Creator: Conrad Groth

Created: 2018-03-03 08:46:08 EST

Size: 11.86 KB

patch

obsolete

>package org.eclipse.swt.snippets;
>import java.awt.*;
>import java.awt.image.*;
>import java.io.*;
>
>import javax.imageio.*;
>
>/*******************************************************************************
> * Copyright (c) 2000, 2016 IBM Corporation and others.
> * All rights reserved. This Example Content is intended to demonstrate
> * usage of Eclipse technology. It is provided to you under the terms and
> * conditions of the Eclipse Distribution License v1.0 which is available
> * at http://www.eclipse.org/org/documents/edl-v10.php
> *
> * Contributors:
> *     IBM Corporation - initial API and implementation
> *******************************************************************************/
>import org.eclipse.swt.*;
>import org.eclipse.swt.graphics.*;
>import org.eclipse.swt.graphics.Image;
>import org.eclipse.swt.graphics.Rectangle;
>import org.eclipse.swt.layout.*;
>import org.eclipse.swt.widgets.*;
>import org.eclipse.swt.widgets.Canvas;
>import org.eclipse.swt.widgets.Composite;
>import org.eclipse.swt.widgets.Event;
>import org.eclipse.swt.widgets.Label;
>
>/**
> * Draw images scaled to 0.5, 1, 1.25, 1.5, and 2 times original size.
> */
>public class SnippetScalingWithAWT {
>	public static void main (String [] args) {
>		Display display = new Display ();
>		Shell shell = new Shell (display, SWT.SHELL_TRIM | SWT.DOUBLE_BUFFERED);
>		shell.setLayout(new RowLayout(SWT.HORIZONTAL));
>
>		createImages(createColumn(shell), new Image(display, "bin/org/eclipse/swt/snippets/eclipse16.png"));
>		createImages(createColumn(shell), new Image(display, "bin/org/eclipse/swt/snippets/warning.gif"));
>		createImages(createColumn(shell), "bin/org/eclipse/swt/snippets/eclipse16.png");
>		createImages(createColumn(shell), "bin/org/eclipse/swt/snippets/warning.gif");
>		createImages(createColumn(shell), display.getSystemImage (SWT.ICON_INFORMATION));
>		createImages(createColumn(shell), display.getSystemImage (SWT.ICON_WARNING));
>		createImages(createColumn(shell), display.getSystemImage (SWT.ICON_ERROR));
>		createImages(createColumn(shell), display.getSystemImage (SWT.ICON_QUESTION));
>
>		final Image triangleCircle = new Image(display, 16, 16);
>		GC gc = new GC(triangleCircle);
>		gc.drawPolyline(new int[] { 0,0, 15,0, 0,15, 0,0 });
>		gc.drawOval(2, 2, 11, 11);
>		gc.dispose();
>		createImages(createColumn(shell), triangleCircle);
>
>		shell.pack ();
>		shell.open ();
>		while (!shell.isDisposed ()) {
>			if (!display.readAndDispatch ())
>				display.sleep ();
>		}
>		display.dispose ();
>	}
>
>	private static Composite createColumn(Composite parent) {
>		Composite column = new Composite(parent, SWT.NONE);
>		column.setLayout(new FillLayout(SWT.VERTICAL));
>		return column;
>	}
>
>
>	private static void createImages(Composite parent, final String filename) {
>		try {
>			Display display = parent.getDisplay();
>			java.awt.Image image = ImageIO.read(new File(filename));
>
>			Composite datas = new Composite(parent, SWT.NONE);
>			RowLayout rowLayout = new RowLayout();
>			rowLayout.marginTop = rowLayout.marginLeft = 10;
>			rowLayout.spacing = 0;
>			datas.setLayout(rowLayout);
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(image,	0.5))));
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(image,	1.0))));
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(image,	1.25))));
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(image,	1.5))));
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(image,	2.0))));
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(image,	3.0))));
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(image,	4.0))));
>		} catch (IOException e) {
>			e.printStackTrace();
>		}
>
>	}
>
>	private static void createImages(Composite parent, final Image image) {
>		Display display = parent.getDisplay();
>
>		BufferedImage awtImage = Snippet156.convertToAWT(image.getImageData());
>
>
>		// ImageData#scaledTo(..)
>		Composite datas = new Composite(parent, SWT.NONE);
>		RowLayout rowLayout = new RowLayout();
>		rowLayout.marginTop = rowLayout.marginLeft = 10;
>		rowLayout.spacing = 0;
>		datas.setLayout(rowLayout);
>		Rectangle bounds = image.getBounds();
>		try {
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(awtImage,
>					(int) Math.round(bounds.width * 0.5) , (int) Math.round(bounds.height * 0.5)))));
>			new Label(datas, SWT.NONE).setImage(image);
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(awtImage,
>					(int) Math.round(bounds.width * 1.25) , (int) Math.round(bounds.height * 1.25)))));
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(awtImage,
>					(int) Math.round(bounds.width * 1.5) , (int) Math.round(bounds.height * 1.5)))));
>			new Label(datas, SWT.NONE).setImage(new Image(display, Snippet156.convertToSWT(createResizedCopy(awtImage,
>					bounds.width * 2 , bounds.height * 2))));
>		} catch (Exception e) {
>			System.err.println("Esception occured " + e);
>			new Label(datas, SWT.NONE).setText("Exception occured");
>		}
>
>		// Canvas SWT.Paint
>		Canvas paint = new Canvas(parent, SWT.NONE);
>		paint.addListener (SWT.Paint, new Listener () {
>			@Override
>			public void handleEvent (Event e) {
>				Rectangle rect = image.getBounds ();
>				int width = rect.width;
>				int height = rect.height;
>				GC gc = e.gc;
>				int x = 10, y = 10;
>				int w = 0;
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 0.5), (int)Math.round(height * 0.5));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = width, height);
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 1.25), (int)Math.round(height * 1.25));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 1.5), (int)Math.round(height * 1.5));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = width * 2, height * 2);
>			}
>		});
>
>		// Canvas SWT.Paint with Antialias
>		Canvas paintAnti = new Canvas(parent, SWT.NONE);
>		paintAnti.addListener (SWT.Paint, new Listener () {
>			@Override
>			public void handleEvent (Event e) {
>				Rectangle rect = image.getBounds ();
>				int width = rect.width;
>				int height = rect.height;
>				GC gc = e.gc;
>				gc.setAntialias(SWT.ON);
>				int x = 10, y = 10;
>				int w = 0;
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 0.5), (int)Math.round(height * 0.5));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = width, height);
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 1.25), (int)Math.round(height * 1.25));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 1.5), (int)Math.round(height * 1.5));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = width * 2, height * 2);
>			}
>		});
>
>		Canvas paintLow = new Canvas(parent, SWT.NONE);
>		paintLow.addListener (SWT.Paint, new Listener () {
>			@Override
>			public void handleEvent (Event e) {
>				Rectangle rect = image.getBounds ();
>				int width = rect.width;
>				int height = rect.height;
>				GC gc = e.gc;
>				gc.setAntialias(SWT.ON);
>				gc.setInterpolation(SWT.LOW);
>				int x = 10, y = 10;
>				int w = 0;
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 0.5), (int)Math.round(height * 0.5));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = width, height);
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 1.25), (int)Math.round(height * 1.25));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 1.5), (int)Math.round(height * 1.5));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = width * 2, height * 2);
>			}
>		});
>
>		Canvas paintHigh = new Canvas(parent, SWT.NONE);
>		paintHigh.addListener (SWT.Paint, new Listener () {
>			@Override
>			public void handleEvent (Event e) {
>				Rectangle rect = image.getBounds ();
>				int width = rect.width;
>				int height = rect.height;
>				GC gc = e.gc;
>				gc.setAntialias(SWT.ON);
>				gc.setInterpolation(SWT.HIGH);
>				int x = 10, y = 10;
>				int w = 0;
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 0.5), (int)Math.round(height * 0.5));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = width, height);
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 1.25), (int)Math.round(height * 1.25));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = (int)Math.round(width * 1.5), (int)Math.round(height * 1.5));
>				gc.drawImage (image, 0, 0, width, height, x += w, y, w = width * 2, height * 2);
>			}
>		});
>
>		Canvas paintTransform = new Canvas(parent, SWT.NONE);
>		paintTransform.addListener (SWT.Paint, new Listener () {
>			@Override
>			public void handleEvent (Event e) {
>				Rectangle rect = image.getBounds ();
>				int width = rect.width;
>				int height = rect.height;
>				GC gc = e.gc;
>//				gc.setAntialias(SWT.ON);
>//				gc.setInterpolation(SWT.HIGH);
>				int x = 10, y = 10;
>				Transform transform = new Transform(display);
>				transform.scale(0.5f, 0.5f);
>				gc.setTransform(transform);
>				gc.drawImage (image, 0, 0, width, height, Math.round(x / 0.5f), Math.round(y / 0.5f), width, height);
>				x += Math.round(width * 0.5f);
>				transform.dispose();
>
>				gc.setTransform(null);
>				gc.drawImage (image, 0, 0, width, height, x, y, width, height);
>				x += width;
>
>				transform = new Transform(display);
>				transform.scale(1.25f, 1.25f);
>				gc.setTransform(transform);
>				gc.drawImage (image, 0, 0, width, height, Math.round(x / 1.25f), Math.round(y / 1.25f), width, height);
>				x += Math.round(width * 1.25f);
>				transform.dispose();
>
>				transform = new Transform(display);
>				transform.scale(1.5f, 1.5f);
>				gc.setTransform(transform);
>				gc.drawImage (image, 0, 0, width, height, Math.round(x / 1.5f), Math.round(y / 1.5f), width, height);
>				x += Math.round(width * 1.5f);
>				transform.dispose();
>
>				transform = new Transform(display);
>				transform.scale(2f, 2f);
>				gc.setTransform(transform);
>				gc.drawImage (image, 0, 0, width, height, Math.round(x / 2f), Math.round(y / 2f), width, height);
>				x += Math.round(width * 2f);
>				transform.dispose();
>			}
>		});
>	}
>
>	public static BufferedImage createResizedCopy(BufferedImage source, int destWidth, int destHeight) {
>	    BufferedImage bicubic = new BufferedImage(destWidth, destHeight, source.getType());
>	    Graphics2D bg = bicubic.createGraphics();
>	    bg.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
>	    float sx = (float)destWidth / source.getWidth();
>	    float sy = (float)destHeight / source.getHeight();
>	    bg.scale(sx, sy);
>	    bg.drawImage(source, 0, 0, null);
>	    bg.dispose();
>	    return bicubic;
>	}
>
>	public static BufferedImage createResizedCopy(java.awt.Image source, double scale) {
>	    BufferedImage bicubic = new BufferedImage((int) (16*scale), (int) (16*scale), BufferedImage.TYPE_INT_RGB);
>	    Graphics2D bg = bicubic.createGraphics();
>	    bg.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
>	    bg.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
>	    bg.setRenderingHint(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
>	    bg.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
>
>	    bg.scale(scale, scale);
>	    bg.drawImage(source, 0, 0, null);
>	    bg.dispose();
>	    return bicubic;
>	}
>}

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Attachments on bug 97506: 259133 | 272986 | 272988 | 284302 | 284303 | 284304 | 284305 | 288472