| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.util.Map; |
| import java.util.HashSet; |
| import java.awt.Color; |
| import java.awt.Toolkit; |
| import java.awt.Graphics2D; |
| import java.awt.font.FontRenderContext; |
| import java.awt.image.BufferedImage; |
| import javax.swing.JLabel; |
| import javax.swing.SwingUtilities; |
| import javax.swing.UIManager; |
| import javax.swing.UIDefaults; |
| import javax.swing.UIManager.LookAndFeelInfo; |
| import javax.swing.plaf.basic.BasicLookAndFeel; |
| import static java.awt.RenderingHints.KEY_TEXT_ANTIALIASING; |
| import static java.awt.RenderingHints.KEY_TEXT_LCD_CONTRAST; |
| import static java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_GASP; |
| import static java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HBGR; |
| import static java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB; |
| import static java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VBGR; |
| import static java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VRGB; |
| import static java.awt.RenderingHints.VALUE_TEXT_ANTIALIAS_OFF; |
| |
| /** |
| * @test |
| * @bug 6302464 |
| * @author Alexandr Scherbatiy |
| * @summary Allow programmatic enabling of subpixel anti-aliasing in Swing |
| */ |
| public class bug6302464 { |
| |
| public static void main(String[] args) throws Exception { |
| SwingUtilities.invokeAndWait(bug6302464::testAntialiasingProperties); |
| } |
| |
| private static void testAntialiasingProperties() { |
| testCustomLAF(); |
| testFontRenderingContext(); |
| testAntialiasingHints(); |
| testLAFAAHints(); |
| } |
| |
| private static void testCustomLAF() { |
| try { |
| testCustomLAF(false); |
| testCustomLAF(true); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private static void testCustomLAF(boolean useAAHints) throws Exception { |
| CustomLookAndFeel customLAF = new CustomLookAndFeel(useAAHints); |
| UIManager.setLookAndFeel(customLAF); |
| |
| JLabel label = new JLabel(); |
| Object aaHint = label.getClientProperty(KEY_TEXT_ANTIALIASING); |
| Object lcdContrastHint = label.getClientProperty(KEY_TEXT_LCD_CONTRAST); |
| |
| if (aaHint != customLAF.getAAHint()) { |
| throw new RuntimeException("AA hint from custom L&F is not set"); |
| } |
| |
| if (lcdContrastHint != customLAF.getLCDContarstHint()) { |
| throw new RuntimeException("AA hint from custom L&F is not set"); |
| } |
| } |
| |
| private static final Object[] ANTIALIASING_HINTS = { |
| VALUE_TEXT_ANTIALIAS_GASP, |
| VALUE_TEXT_ANTIALIAS_LCD_HRGB, |
| VALUE_TEXT_ANTIALIAS_LCD_HBGR, |
| VALUE_TEXT_ANTIALIAS_LCD_VRGB, |
| VALUE_TEXT_ANTIALIAS_LCD_VBGR |
| }; |
| |
| private static void testFontRenderingContext() { |
| for (Object aaHint : ANTIALIASING_HINTS) { |
| testFontRenderingContext(aaHint); |
| } |
| } |
| |
| private static void testFontRenderingContext(Object aaHint) { |
| |
| JLabel label = new JLabel("Test"); |
| label.putClientProperty(KEY_TEXT_ANTIALIASING, aaHint); |
| FontRenderContext frc = label.getFontMetrics( |
| label.getFont()).getFontRenderContext(); |
| |
| if (!aaHint.equals(frc.getAntiAliasingHint())) { |
| throw new RuntimeException("Wrong aa hint in FontRenderContext"); |
| } |
| } |
| |
| private static void testAntialiasingHints() { |
| setMetalLookAndFeel(); |
| |
| HashSet colorsAAOff = getAntialiasedColors(VALUE_TEXT_ANTIALIAS_OFF, 100); |
| |
| if (colorsAAOff.size() > 2) { |
| throw new RuntimeException("Wrong number of antialiased colors."); |
| } |
| |
| HashSet colorsAAOnLCD100 = getAntialiasedColors( |
| VALUE_TEXT_ANTIALIAS_LCD_HRGB, 100); |
| |
| if (colorsAAOnLCD100.size() <= 2) { |
| throw new RuntimeException("Wrong number of antialiased colors."); |
| } |
| |
| HashSet colorsAAOnLCD250 = getAntialiasedColors( |
| VALUE_TEXT_ANTIALIAS_LCD_HRGB, 250); |
| |
| if (colorsAAOnLCD250.size() <= 2) { |
| throw new RuntimeException("Wrong number of antialiased colors."); |
| } |
| |
| if (colorsAAOnLCD100.equals(colorsAAOnLCD250)) { |
| throw new RuntimeException("LCD contarst is not used."); |
| } |
| } |
| |
| private static HashSet getAntialiasedColors(Object aaHint, int lcdContrast) { |
| |
| JLabel label = new JLabel("ABCD"); |
| label.setSize(label.getPreferredSize()); |
| label.putClientProperty(KEY_TEXT_ANTIALIASING, aaHint); |
| label.putClientProperty(KEY_TEXT_LCD_CONTRAST, lcdContrast); |
| |
| int w = label.getWidth(); |
| int h = label.getHeight(); |
| |
| BufferedImage buffImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); |
| Graphics2D g = buffImage.createGraphics(); |
| g.setColor(Color.WHITE); |
| g.fillRect(0, 0, w, h); |
| label.paint(g); |
| g.dispose(); |
| |
| HashSet<Color> colors = new HashSet<>(); |
| |
| for (int i = 0; i < w; i++) { |
| for (int j = 0; j < h; j++) { |
| Color color = new Color(buffImage.getRGB(i, j)); |
| colors.add(color); |
| } |
| } |
| |
| return colors; |
| } |
| |
| private static void setMetalLookAndFeel() { |
| setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel"); |
| } |
| |
| private static void setLookAndFeel(String lafClass) { |
| try { |
| UIManager.setLookAndFeel(lafClass); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private static void testLAFAAHints() { |
| |
| for (LookAndFeelInfo lafInfo : UIManager.getInstalledLookAndFeels()) { |
| testLAFAAHints(lafInfo); |
| } |
| } |
| |
| private static final String[] EXCLUDED_LAFS = {"CDE/Motif"}; |
| |
| private static boolean isExcludedLAF(LookAndFeelInfo lafInfo) { |
| for (String excludedLaf : EXCLUDED_LAFS) { |
| if (lafInfo.getName().equals(excludedLaf)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private static void testLAFAAHints(LookAndFeelInfo lafInfo) { |
| setLookAndFeel(lafInfo.getClassName()); |
| |
| Object uiAAHint = UIManager.getDefaults().get(KEY_TEXT_ANTIALIASING); |
| Object uiLCDContrastHint = UIManager.getDefaults().get( |
| KEY_TEXT_LCD_CONTRAST); |
| |
| Object aaHints = Toolkit.getDefaultToolkit(). |
| getDesktopProperty("awt.font.desktophints"); |
| |
| if (isExcludedLAF(lafInfo)) { |
| if (uiAAHint != null || uiLCDContrastHint != null) { |
| throw new RuntimeException("Rendering hints set for excluded L&F"); |
| } |
| } else if (aaHints instanceof Map) { |
| Map map = (Map) aaHints; |
| |
| if (uiAAHint != map.get(KEY_TEXT_ANTIALIASING)) { |
| throw new RuntimeException("UI defaults contains wrong aa hint"); |
| } |
| |
| if (uiLCDContrastHint != map.get(KEY_TEXT_LCD_CONTRAST)) { |
| throw new RuntimeException("UI defaults contains wrong" |
| + "lcd contrast hint"); |
| } |
| } else if (uiAAHint != null || uiLCDContrastHint != null) { |
| throw new RuntimeException("Rendering hints set for empty desktop" |
| + "properties"); |
| } |
| } |
| |
| private static class CustomLookAndFeel extends BasicLookAndFeel { |
| |
| private final boolean useAAHints; |
| |
| public CustomLookAndFeel(boolean useAAHints) { |
| this.useAAHints = useAAHints; |
| } |
| |
| @Override |
| public String getDescription() { |
| return getName(); |
| } |
| |
| @Override |
| public String getName() { |
| return "Custom L&F"; |
| } |
| |
| @Override |
| public String getID() { |
| return getName(); |
| } |
| |
| @Override |
| public boolean isNativeLookAndFeel() { |
| return false; |
| } |
| |
| @Override |
| public boolean isSupportedLookAndFeel() { |
| return true; |
| } |
| |
| @Override |
| protected void initClassDefaults(UIDefaults table) { |
| super.initClassDefaults(table); |
| table.put(KEY_TEXT_ANTIALIASING, getAAHint()); |
| table.put(KEY_TEXT_LCD_CONTRAST, getLCDContarstHint()); |
| } |
| |
| private Object getAAHint() { |
| return useAAHints ? VALUE_TEXT_ANTIALIAS_GASP : null; |
| } |
| |
| private Object getLCDContarstHint() { |
| return useAAHints ? 115 : null; |
| } |
| } |
| } |