| /******************************************************************************* |
| * 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 java.util.*; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| /** |
| * This tab demonstrates various text fonts. It allows the user to specify font |
| * parameters such as face, style and size. |
| */ |
| public class CustomFontTab extends GraphicsTab { |
| |
| String text = GraphicsExample.getResourceString("SWT"); |
| GraphicsBackground fontForeground; |
| Combo fontFaceCb, fontStyleCb; |
| Spinner fontPointSpinner; |
| Button colorButton; |
| ArrayList fontNames; |
| int [] styleValues; |
| String [] fontStyles; |
| Menu menu; |
| |
| public CustomFontTab(GraphicsExample example) { |
| super(example); |
| |
| // create list of fonts for this platform |
| FontData [] fontData = Display.getCurrent().getFontList(null, true); |
| fontNames = new ArrayList(); |
| for (int i=0; i < fontData.length; i++) { |
| // remove duplicates and sort |
| String nextName = fontData[i].getName(); |
| if (!fontNames.contains(nextName)) { |
| int j = 0; |
| while(j < fontNames.size() && nextName.compareTo((String)fontNames.get(j)) > 0) { |
| j++; |
| } |
| fontNames.add(j, nextName); |
| } |
| } |
| fontStyles = new String [] { |
| GraphicsExample.getResourceString("Regular"), //$NON-NLS-1$ |
| GraphicsExample.getResourceString("Italic"), //$NON-NLS-1$ |
| GraphicsExample.getResourceString("Bold"), //$NON-NLS-1$ |
| GraphicsExample.getResourceString("BoldItalic") //$NON-NLS-1$ |
| }; |
| styleValues = new int [] {SWT.NORMAL, SWT.ITALIC, SWT.BOLD, SWT.BOLD | SWT.ITALIC}; |
| } |
| |
| public String getCategory() { |
| return GraphicsExample.getResourceString("Font"); //$NON-NLS-1$ |
| } |
| |
| public String getText() { |
| return GraphicsExample.getResourceString("CustomFont"); //$NON-NLS-1$ |
| } |
| |
| public String getDescription() { |
| return GraphicsExample.getResourceString("CustomFontDescription"); //$NON-NLS-1$ |
| } |
| |
| public void dispose() { |
| if (menu != null) { |
| menu.dispose(); |
| menu = null; |
| } |
| } |
| |
| public void createControlPanel(Composite parent) { |
| |
| Composite mainComp = new Composite(parent, SWT.NONE); |
| mainComp.setLayout(new RowLayout()); |
| |
| // create combo for font face |
| Composite comp = new Composite(mainComp, SWT.NONE); |
| comp.setLayout(new GridLayout(2, false)); |
| |
| new Label(comp, SWT.LEFT).setText(GraphicsExample.getResourceString("FontFace")); //$NON-NLS-1$ |
| fontFaceCb = new Combo(comp, SWT.DROP_DOWN); |
| for (int i=0; i < fontNames.size(); i++) { |
| String name = (String)fontNames.get(i); |
| fontFaceCb.add(name); |
| } |
| fontFaceCb.select(0); |
| fontFaceCb.addListener(SWT.Selection, new Listener() { |
| public void handleEvent (Event event) { |
| example.redraw(); |
| } |
| }); |
| |
| // create combo for font style |
| comp = new Composite(mainComp, SWT.NONE); |
| comp.setLayout(new GridLayout(2, false)); |
| |
| new Label(comp, SWT.LEFT).setText(GraphicsExample.getResourceString("FontStyle")); //$NON-NLS-1$ |
| fontStyleCb = new Combo(comp, SWT.DROP_DOWN); |
| for (int i=0; i < fontStyles.length; i++) { |
| fontStyleCb.add(fontStyles[i]); |
| } |
| fontStyleCb.select(0); |
| fontStyleCb.addListener(SWT.Selection, new Listener() { |
| public void handleEvent (Event event) { |
| example.redraw(); |
| } |
| }); |
| |
| // create spinner for font size (points) |
| comp = new Composite(mainComp, SWT.NONE); |
| comp.setLayout(new GridLayout(2, false)); |
| |
| new Label(comp, SWT.LEFT).setText(GraphicsExample.getResourceString("FontSize")); //$NON-NLS-1$ |
| fontPointSpinner = new Spinner(comp, SWT.BORDER | SWT.WRAP); |
| fontPointSpinner.setMinimum(1); |
| fontPointSpinner.setMaximum(1000); |
| fontPointSpinner.setSelection(200); |
| fontPointSpinner.addListener(SWT.Selection, new Listener() { |
| public void handleEvent(Event event) { |
| example.redraw(); |
| } |
| }); |
| |
| ColorMenu cm = new ColorMenu(); |
| cm.setColorItems(true); |
| cm.setPatternItems(example.checkAdvancedGraphics()); |
| menu = cm.createMenu(parent.getParent(), new ColorListener() { |
| public void setColor(GraphicsBackground gb) { |
| fontForeground = gb; |
| colorButton.setImage(gb.getThumbNail()); |
| example.redraw(); |
| } |
| }); |
| |
| // initialize the background to the 2nd item in the menu (black) |
| fontForeground = (GraphicsBackground)menu.getItem(1).getData(); |
| |
| // create color button |
| comp = new Composite(parent, SWT.NONE); |
| comp.setLayout(new GridLayout()); |
| |
| colorButton = new Button(comp, SWT.PUSH); |
| colorButton.setText(GraphicsExample.getResourceString("Color")); //$NON-NLS-1$ |
| colorButton.setImage(fontForeground.getThumbNail()); |
| colorButton.addListener(SWT.Selection, new Listener() { |
| public void handleEvent(Event event) { |
| final Button button = (Button) event.widget; |
| final Composite parent = button.getParent(); |
| Rectangle bounds = button.getBounds(); |
| Point point = parent.toDisplay(new Point(bounds.x, bounds.y)); |
| menu.setLocation(point.x, point.y + bounds.height); |
| menu.setVisible(true); |
| } |
| }); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.swt.examples.graphics.GraphicsTab#paint(org.eclipse.swt.graphics.GC, int, int) |
| */ |
| public void paint(GC gc, int width, int height) { |
| if (!example.checkAdvancedGraphics()) return; |
| Device device = gc.getDevice(); |
| |
| String fontFace = (String)fontNames.get(fontFaceCb.getSelectionIndex()); |
| int points = fontPointSpinner.getSelection(); |
| int style = styleValues[fontStyleCb.getSelectionIndex()]; |
| |
| Font font = new Font(device, fontFace, points, style); |
| gc.setFont(font); |
| gc.setTextAntialias(SWT.ON); |
| |
| Point size = gc.stringExtent(text); |
| int textWidth = size.x; |
| int textHeight = size.y; |
| |
| Pattern pattern = null; |
| if (fontForeground.getBgColor1() != null) { |
| gc.setForeground(fontForeground.getBgColor1()); |
| } else if (fontForeground.getBgImage() != null) { |
| pattern = new Pattern(device, fontForeground.getBgImage()); |
| gc.setForegroundPattern(pattern); |
| } |
| |
| gc.drawString(text, (width-textWidth)/2, (height-textHeight)/2, true); |
| |
| font.dispose(); |
| if (pattern != null) pattern.dispose(); |
| } |
| |
| } |
| |