| /* |
| * Copyright (c) 2016, 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.awt.Color; |
| import java.awt.Font; |
| import java.awt.FontMetrics; |
| import java.awt.Graphics2D; |
| import java.awt.GraphicsEnvironment; |
| import java.awt.font.FontRenderContext; |
| import java.awt.font.NumericShaper; |
| import java.awt.font.TextAttribute; |
| import java.awt.font.TextLayout; |
| import java.awt.image.BufferedImage; |
| import java.util.HashMap; |
| import javax.swing.JComponent; |
| import javax.swing.JLabel; |
| import javax.swing.SwingUtilities; |
| import javax.swing.UIManager; |
| import javax.swing.plaf.basic.BasicGraphicsUtils; |
| import javax.swing.plaf.metal.MetalLookAndFeel; |
| |
| /** |
| * @test |
| * @bug 8132119 8168992 8169897 |
| * @author Alexandr Scherbatiy |
| * @summary Provide public API for text related methods in SwingBasicGraphicsUtils2 |
| */ |
| public class bug8132119 { |
| |
| private static final int WIDTH = 50; |
| private static final int HEIGHT = 50; |
| private static final Color DRAW_COLOR = Color.RED; |
| private static final Color BACKGROUND_COLOR = Color.GREEN; |
| private static final NumericShaper NUMERIC_SHAPER = NumericShaper.getShaper( |
| NumericShaper.ARABIC); |
| |
| public static void main(String[] args) throws Exception { |
| SwingUtilities.invokeAndWait(bug8132119::testStringMethods); |
| } |
| |
| private static void testStringMethods() { |
| setMetalLAF(); |
| testStringWidth(); |
| testStringClip(); |
| testDrawEmptyString(); |
| testDrawString(false); |
| testDrawString(true); |
| checkNullArguments(); |
| } |
| |
| private static void testStringWidth() { |
| |
| String str = "12345678910\u036F"; |
| JComponent comp = createComponent(str); |
| Font font = comp.getFont(); |
| FontMetrics fontMetrics = comp.getFontMetrics(font); |
| float stringWidth = BasicGraphicsUtils.getStringWidth(comp, fontMetrics, str); |
| |
| if (stringWidth == fontMetrics.stringWidth(str)) { |
| throw new RuntimeException("Numeric shaper is not used!"); |
| } |
| |
| if (stringWidth != getLayoutWidth(str, font, NUMERIC_SHAPER)) { |
| throw new RuntimeException("Wrong text width!"); |
| } |
| } |
| |
| private static void testStringClip() { |
| |
| String str = "1234567890"; |
| JComponent comp = createComponent(str); |
| FontMetrics fontMetrics = comp.getFontMetrics(comp.getFont()); |
| |
| int width = (int) BasicGraphicsUtils.getStringWidth(comp, fontMetrics, str); |
| |
| String clip = BasicGraphicsUtils.getClippedString(comp, fontMetrics, str, width); |
| checkClippedString(str, clip, str); |
| |
| clip = BasicGraphicsUtils.getClippedString(comp, fontMetrics, str, width + 1); |
| checkClippedString(str, clip, str); |
| |
| clip = BasicGraphicsUtils.getClippedString(comp, fontMetrics, str, -1); |
| checkClippedString(str, clip, "..."); |
| |
| clip = BasicGraphicsUtils.getClippedString(comp, fontMetrics, str, 0); |
| checkClippedString(str, clip, "..."); |
| |
| clip = BasicGraphicsUtils.getClippedString(comp, fontMetrics, |
| str, width - width / str.length()); |
| int endIndex = str.length() - 3; |
| checkClippedString(str, clip, str.substring(0, endIndex) + "..."); |
| } |
| |
| private static void checkClippedString(String str, String res, String golden) { |
| if (!golden.equals(res)) { |
| throw new RuntimeException(String.format("The string '%s' is not " |
| + "properly clipped. The result is '%s' instead of '%s'", |
| str, res, golden)); |
| } |
| } |
| |
| private static void testDrawEmptyString() { |
| JLabel label = new JLabel(); |
| BufferedImage buffImage = createBufferedImage(50, 50); |
| Graphics2D g2 = buffImage.createGraphics(); |
| g2.setColor(DRAW_COLOR); |
| BasicGraphicsUtils.drawString(null, g2, null, 0, 0); |
| BasicGraphicsUtils.drawString(label, g2, null, 0, 0); |
| BasicGraphicsUtils.drawString(null, g2, "", 0, 0); |
| BasicGraphicsUtils.drawString(label, g2, "", 0, 0); |
| BasicGraphicsUtils.drawStringUnderlineCharAt(null, g2, null, 3, 0, 0); |
| BasicGraphicsUtils.drawStringUnderlineCharAt(label, g2, null, 3, 0, 0); |
| BasicGraphicsUtils.drawStringUnderlineCharAt(null, g2, "", 3, 0, 0); |
| BasicGraphicsUtils.drawStringUnderlineCharAt(label, g2, "", 3, 0, 0); |
| g2.dispose(); |
| checkImageIsEmpty(buffImage); |
| } |
| |
| private static void testDrawString(boolean underlined) { |
| String str = "AOB"; |
| JComponent comp = createComponent(str); |
| |
| BufferedImage buffImage = createBufferedImage(WIDTH, HEIGHT); |
| Graphics2D g2 = buffImage.createGraphics(); |
| |
| g2.setColor(DRAW_COLOR); |
| g2.setFont(comp.getFont()); |
| |
| FontMetrics fontMetrices = comp.getFontMetrics(comp.getFont()); |
| float width = BasicGraphicsUtils.getStringWidth(comp, fontMetrices, str); |
| float x = (WIDTH - width) / 2; |
| int y = 3 * HEIGHT / 4; |
| |
| if (underlined) { |
| BasicGraphicsUtils.drawStringUnderlineCharAt(comp, g2, str, 1, x, y); |
| } else { |
| BasicGraphicsUtils.drawString(comp, g2, str, x, y); |
| } |
| g2.dispose(); |
| |
| float xx = BasicGraphicsUtils.getStringWidth(comp, fontMetrices, "A") + |
| BasicGraphicsUtils.getStringWidth(comp, fontMetrices, "O")/2; |
| |
| checkImageContainsSymbol(buffImage, (int) xx, underlined ? 3 : 2); |
| } |
| |
| private static void checkNullArguments() { |
| |
| Graphics2D g = null; |
| try { |
| String text = "Test"; |
| JComponent component = new JLabel(text); |
| BufferedImage img = createBufferedImage(100, 100); |
| g = img.createGraphics(); |
| checkNullArguments(component, g, text); |
| } finally { |
| g.dispose(); |
| } |
| } |
| |
| private static void checkNullArguments(JComponent comp, Graphics2D g, |
| String text) { |
| |
| checkNullArgumentsDrawString(comp, g, text); |
| checkNullArgumentsDrawStringUnderlineCharAt(comp, g, text); |
| checkNullArgumentsGetClippedString(comp, text); |
| checkNullArgumentsGetStringWidth(comp, text); |
| } |
| |
| private static void checkNullArgumentsDrawString(JComponent comp, Graphics2D g, |
| String text) { |
| |
| float x = 50; |
| float y = 50; |
| BasicGraphicsUtils.drawString(null, g, text, x, y); |
| BasicGraphicsUtils.drawString(comp, g, null, x, y); |
| |
| try { |
| BasicGraphicsUtils.drawString(comp, null, text, x, y); |
| } catch (NullPointerException e) { |
| return; |
| } |
| |
| throw new RuntimeException("NPE is not thrown"); |
| } |
| |
| private static void checkNullArgumentsDrawStringUnderlineCharAt( |
| JComponent comp, Graphics2D g, String text) { |
| |
| int x = 50; |
| int y = 50; |
| BasicGraphicsUtils.drawStringUnderlineCharAt(null, g, text, 1, x, y); |
| BasicGraphicsUtils.drawStringUnderlineCharAt(comp, g, null, 1, x, y); |
| |
| try { |
| BasicGraphicsUtils.drawStringUnderlineCharAt(comp, null, text, 1, x, y); |
| } catch (NullPointerException e) { |
| return; |
| } |
| |
| throw new RuntimeException("NPE is not thrown"); |
| } |
| |
| private static void checkNullArgumentsGetClippedString( |
| JComponent comp, String text) { |
| |
| FontMetrics fontMetrics = comp.getFontMetrics(comp.getFont()); |
| |
| BasicGraphicsUtils.getClippedString(null, fontMetrics, text, 1); |
| String result = BasicGraphicsUtils.getClippedString(comp, fontMetrics, null, 1); |
| if (!"".equals(result)) { |
| throw new RuntimeException("Empty string is not returned!"); |
| } |
| |
| try { |
| BasicGraphicsUtils.getClippedString(comp, null, text, 1); |
| } catch (NullPointerException e) { |
| return; |
| } |
| |
| throw new RuntimeException("NPE is not thrown"); |
| } |
| |
| private static void checkNullArgumentsGetStringWidth(JComponent comp, |
| String text) { |
| |
| FontMetrics fontMetrics = comp.getFontMetrics(comp.getFont()); |
| BasicGraphicsUtils.getStringWidth(null, fontMetrics, text); |
| float result = BasicGraphicsUtils.getStringWidth(comp, fontMetrics, null); |
| |
| if (result != 0) { |
| throw new RuntimeException("The string length is not 0"); |
| } |
| |
| try { |
| BasicGraphicsUtils.getStringWidth(comp, null, text); |
| } catch (NullPointerException e) { |
| return; |
| } |
| |
| throw new RuntimeException("NPE is not thrown"); |
| } |
| |
| private static void setMetalLAF() { |
| try { |
| UIManager.setLookAndFeel(new MetalLookAndFeel()); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| private static JComponent createComponent(String str) { |
| JComponent comp = new JLabel(str); |
| comp.setSize(WIDTH, HEIGHT); |
| comp.putClientProperty(TextAttribute.NUMERIC_SHAPING, NUMERIC_SHAPER); |
| comp.setFont(getFont()); |
| return comp; |
| } |
| |
| private static Font getFont() { |
| GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment(); |
| String[] fontNames = ge.getAvailableFontFamilyNames(); |
| String fontName = fontNames[0]; |
| for (String name : fontNames) { |
| if ("Arial".equals(name)) { |
| fontName = name; |
| break; |
| } |
| } |
| return new Font(fontName, Font.PLAIN, 30); |
| } |
| |
| private static float getLayoutWidth(String text, Font font, NumericShaper shaper) { |
| HashMap map = new HashMap(); |
| map.put(TextAttribute.FONT, font); |
| map.put(TextAttribute.NUMERIC_SHAPING, shaper); |
| FontRenderContext frc = new FontRenderContext(null, false, false); |
| TextLayout layout = new TextLayout(text, map, frc); |
| return layout.getAdvance(); |
| } |
| |
| private static void checkImageIsEmpty(BufferedImage buffImage) { |
| int background = BACKGROUND_COLOR.getRGB(); |
| |
| for (int i = 0; i < buffImage.getWidth(); i++) { |
| for (int j = 0; j < buffImage.getHeight(); j++) { |
| if (background != buffImage.getRGB(i, j)) { |
| throw new RuntimeException("Image is not empty!"); |
| } |
| } |
| } |
| } |
| |
| private static void checkImageContainsSymbol(BufferedImage buffImage, |
| int x, int intersections) { |
| |
| int background = BACKGROUND_COLOR.getRGB(); |
| boolean isBackground = true; |
| int backgroundChangesCount = 0; |
| |
| for (int y = 0; y < buffImage.getHeight(); y++) { |
| if (!(isBackground ^ (background != buffImage.getRGB(x, y)))) { |
| isBackground = !isBackground; |
| backgroundChangesCount++; |
| } |
| } |
| |
| if (backgroundChangesCount != intersections * 2) { |
| throw new RuntimeException("String is not properly drawn!"); |
| } |
| } |
| |
| private static BufferedImage createBufferedImage(int width, int height) { |
| BufferedImage bufffImage = new BufferedImage(width, height, |
| BufferedImage.TYPE_INT_RGB); |
| |
| Graphics2D g = bufffImage.createGraphics(); |
| g.setColor(BACKGROUND_COLOR); |
| g.fillRect(0, 0, width, height); |
| g.dispose(); |
| return bufffImage; |
| } |
| } |