| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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; |
| |
| /* |
| * TextLayout example snippet: using the rise field of a TextStyle. |
| * |
| * 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.widgets.*; |
| import org.eclipse.swt.graphics.*; |
| |
| public class Snippet204 { |
| |
| public static void main(String[] args) { |
| Display display = new Display(); |
| Shell shell = new Shell(display, SWT.SHELL_TRIM | SWT.DOUBLE_BUFFERED); |
| shell.setText("Modify Rise"); |
| FontData data = display.getSystemFont().getFontData()[0]; |
| Font font = new Font(display, data.getName(), 24, SWT.NORMAL); |
| Font smallFont = new Font(display, data.getName(), 8, SWT.NORMAL); |
| GC gc = new GC(shell); |
| gc.setFont(smallFont); |
| FontMetrics smallMetrics = gc.getFontMetrics(); |
| final int smallBaseline = smallMetrics.getAscent() + smallMetrics.getLeading(); |
| gc.setFont(font); |
| FontMetrics metrics = gc.getFontMetrics(); |
| final int baseline = metrics.getAscent() + metrics.getLeading(); |
| gc.dispose(); |
| |
| final TextLayout layout0 = new TextLayout(display); |
| layout0.setText("SubscriptScriptSuperscript"); |
| layout0.setFont(font); |
| TextStyle subscript0 = new TextStyle(smallFont, null, null); |
| TextStyle superscript0 = new TextStyle(smallFont, null, null); |
| superscript0.rise = baseline - smallBaseline; |
| layout0.setStyle(subscript0, 0, 8); |
| layout0.setStyle(superscript0, 15, 25); |
| |
| final TextLayout layout1 = new TextLayout(display); |
| layout1.setText("SubscriptScriptSuperscript"); |
| layout1.setFont(font); |
| TextStyle subscript1 = new TextStyle(smallFont, null, null); |
| subscript1.rise = -smallBaseline; |
| TextStyle superscript1 = new TextStyle(smallFont, null, null); |
| superscript1.rise = baseline; |
| layout1.setStyle(subscript1, 0, 8); |
| layout1.setStyle(superscript1, 15, 25); |
| |
| shell.addListener(SWT.Paint, new Listener() { |
| public void handleEvent(Event event) { |
| Display display = event.display; |
| GC gc = event.gc; |
| |
| Rectangle rect0 = layout0.getBounds(); |
| rect0.x += 10; |
| rect0.y += 10; |
| gc.setBackground(display.getSystemColor(SWT.COLOR_WHITE)); |
| gc.setForeground(display.getSystemColor(SWT.COLOR_BLACK)); |
| gc.fillRectangle(rect0); |
| layout0.draw(gc, rect0.x, rect0.y); |
| gc.setForeground(display.getSystemColor(SWT.COLOR_MAGENTA)); |
| gc.drawLine(rect0.x, rect0.y, rect0.x + rect0.width, rect0.y); |
| gc.drawLine(rect0.x, rect0.y + baseline, rect0.x + rect0.width, rect0.y + baseline); |
| gc.drawLine(rect0.x + rect0.width / 2, rect0.y, rect0.x + rect0.width / 2, rect0.y + rect0.height); |
| |
| Rectangle rect1 = layout1.getBounds(); |
| rect1.x += 10; |
| rect1.y += 20 + rect0.height; |
| gc.setBackground(display.getSystemColor(SWT.COLOR_WHITE)); |
| gc.setForeground(display.getSystemColor(SWT.COLOR_BLACK)); |
| gc.fillRectangle(rect1); |
| layout1.draw(gc, rect1.x, rect1.y); |
| |
| gc.setForeground(display.getSystemColor(SWT.COLOR_MAGENTA)); |
| gc.drawLine(rect1.x, rect1.y + smallBaseline, rect1.x + rect1.width, rect1.y + smallBaseline); |
| gc.drawLine(rect1.x, rect1.y + baseline + smallBaseline, rect1.x + rect1.width, rect1.y + baseline + smallBaseline); |
| gc.drawLine(rect1.x + rect1.width / 2, rect1.y, rect1.x + rect1.width / 2, rect1.y + rect1.height); |
| } |
| }); |
| shell.open(); |
| while (!shell.isDisposed()) { |
| if (!display.readAndDispatch()) display.sleep(); |
| } |
| layout0.dispose(); |
| layout1.dispose(); |
| smallFont.dispose(); |
| font.dispose(); |
| display.dispose(); |
| } |
| } |