Attachment 266797 Details for Bug 500013 – Modified snippet222 to display time mesaurements old vs new

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Modified snippet222 to display time mesaurements old vs new

snippet222.java (text/x-java), 3.59 KB, created by Ian Pun

on 2017-02-13 14:28:49 EST

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Creator: Ian Pun

Created: 2017-02-13 14:28:49 EST

Size: 3.59 KB

patch

obsolete

>/*******************************************************************************
> * Copyright (c) 2000, 2016 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;
>/*
> * example snippet: StyledText bulleted list example
> *
> * For a list of all SWT example snippets see
> * http://www.eclipse.org/swt/snippets/
> *
> * @since 3.2
> */
>
>import org.eclipse.swt.*;
>import org.eclipse.swt.custom.*;
>import org.eclipse.swt.graphics.*;
>import org.eclipse.swt.layout.*;
>import org.eclipse.swt.widgets.*;
>
>public class Snippet222 {
>
>public static void main(String[] args) {
>	Display display = new Display();
>	Shell shell = new Shell(display);
>	shell.setText("StyledText Bullet Example");
>	shell.setLayout(new FillLayout());
>	final StyledText styledText = new StyledText (shell, SWT.FULL_SELECTION | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL);
>	StringBuffer text = new StringBuffer();
>	text.append("Here is StyledText with some bulleted lists:\n\n");
>	for (int i = 0; i < 2000; i++) text.append("Red Bullet List Item " + i + "\n");
>	text.append("\n");
>	for (int i = 0; i < 2000; i++) text.append("Numbered List Item " + i + "\n");
>	for (int i = 0; i < 2000; i++) text.append("Sub List Item " + i + "\n");
>	for (int i = 0; i < 2000; i++) text.append("Numbered List Item " + (2 + i) + "\n");
>	text.append("\n");
>	for (int i = 0; i < 2000; i++) text.append("Custom Draw List Item " + i + "\n");
>	styledText.setText(text.toString());
>
>	StyleRange style0 = new StyleRange();
>	style0.metrics = new GlyphMetrics(0, 0, 40);
>	style0.foreground = display.getSystemColor(SWT.COLOR_RED);
>	Bullet bullet0 = new Bullet (style0);
>	StyleRange style1 = new StyleRange();
>	style1.metrics = new GlyphMetrics(0, 0, 50);
>	style1.foreground = display.getSystemColor(SWT.COLOR_BLUE);
>	Bullet bullet1 = new Bullet (ST.BULLET_NUMBER | ST.BULLET_TEXT, style1);
>	bullet1.text = ".";
>	StyleRange style2 = new StyleRange();
>	style2.metrics = new GlyphMetrics(0, 0, 80);
>	style2.foreground = display.getSystemColor(SWT.COLOR_GREEN);
>	Bullet bullet2 = new Bullet (ST.BULLET_TEXT, style2);
>	bullet2.text = "\u2713";
>	StyleRange style3 = new StyleRange();
>	style3.metrics = new GlyphMetrics(0, 0, 50);
>	Bullet bullet3 = new Bullet (ST.BULLET_CUSTOM, style2);
>
>	styledText.setLineBullet(2, 4, bullet0);
>	styledText.setLineBullet(7, 2, bullet1);
>	styledText.setLineBullet(9, 4, bullet2);
>	styledText.setLineBullet(13, 2, bullet1);
>	styledText.setLineBullet(16, 4, bullet3);
>
>	styledText.addPaintObjectListener(event -> {
>		Display display1 = event.display;
>		StyleRange style = event.style;
>		Font font = style.font;
>		if (font == null) font = styledText.getFont();
>		TextLayout layout = new TextLayout(display1);
>		layout.setAscent(event.ascent);
>		layout.setDescent(event.descent);
>		layout.setFont(font);
>		layout.setText("\u2023 1." + event.bulletIndex + ")");
>		layout.draw(event.gc, event.x + 10, event.y);
>		layout.dispose();
>	});
>	shell.open();
>	
>	long startTime = System.currentTimeMillis();
>	for (int i =0; i<10000;i++) {
>		styledText.setCaretOffset(i);
>	}
>	long finishTime = System.currentTimeMillis();
>	System.out.println("time it took to finish = "+(finishTime-startTime)+" milliseconds.");
>
>	while (!shell.isDisposed()) {
>		if (!display.readAndDispatch()) display.sleep();
>	}
>	display.dispose ();
>}
>}

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Attachments on bug 500013: 266797