test/jdk/javax/swing/text/StyledEditorKit/8016833/bug8016833.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 2014, 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.
  */

 /* @test
    @bug 8016833
    @summary underlines and strikethroughs should be  painted at the correct
             positions for different kind of text styles: normal, superscript and subscript
    @author Anton Nashatyrev
    @run main bug8016833
 */
 import javax.swing.*;
 import javax.swing.text.BadLocationException;
 import javax.swing.text.Style;
 import javax.swing.text.StyleConstants;
 import javax.swing.text.StyledDocument;
 import java.awt.*;
 import java.awt.image.BufferedImage;
 import java.lang.reflect.InvocationTargetException;

 public class bug8016833 {

     void drawText(final Graphics g, final boolean underline, final boolean strikethrough, final boolean background) {
         drawText(g, "mama", underline, strikethrough, background);
     }

     void drawText(final Graphics g, final String text, final boolean underline, final boolean strikethrough, final boolean background) {
         try {
             SwingUtilities.invokeAndWait(new Runnable() {
                 @Override
                 public void run() {
                     final JTextPane comp = new JTextPane();
                     final StyledDocument doc = comp.getStyledDocument();

                     Style style = comp.addStyle("superscript", null);
                     setNormalStyle(style);

                     if (underline) {
                         StyleConstants.setUnderline(style, true);
                     }
                     if (strikethrough) {
                         StyleConstants.setStrikeThrough(style, true);
                     }
                     if (background) {
                         StyleConstants.setBackground(style, Color.BLUE);
                     }
                     try {
                         doc.insertString(doc.getLength(), "mama", style);
                     } catch (BadLocationException e) {
                         throw new RuntimeException(e);
                     }

                     comp.setSize(200, 100);
                     comp.paint(g);
                 }
             });
         } catch (InterruptedException e) {
             throw new RuntimeException(e);
         } catch (InvocationTargetException e) {
             throw new RuntimeException(e);
         }
     }

     void setNormalStyle(Style style) {
         StyleConstants.setSuperscript(style, true);
     }

     int getEmptyPixel() {
         return 0xFFFFFFFF;
     }

     boolean isPixelEmpty(int argb) {
         return (argb & 0x00FFFFFF) == (getEmptyPixel() & 0x00FFFFFF);
     }

     boolean isLineEmpty(BufferedImage img, int coord, boolean isHorizontal) {
         int len = isHorizontal ? img.getWidth() : img.getHeight();
         for (int i = 0; i < len; i++) {
             int pixel = isHorizontal ? img.getRGB(i, coord) : img.getRGB(coord, i);
             if (!isPixelEmpty(pixel)) {
                 return false;
             }
         }
         return true;
     }

     Rectangle getPixelsOutline(BufferedImage img) {
         int x1 = 0;
         while (x1 < img.getWidth() && isLineEmpty(img, x1, false)) {
             x1++;
         }
         int x2 = img.getWidth() - 1;
         while (x2 >= 0 && isLineEmpty(img, x2, false)) {
             x2--;
         }
         int y1 = 0;
         while (y1 < img.getHeight() && isLineEmpty(img, y1, true)) {
             y1++;
         }
         int y2 = img.getHeight() - 1;
         while (y2 >= 0 && isLineEmpty(img, y2, true)) {
             y2--;
         }

         return new Rectangle(x1, y1, x2 - x1 + 1, y2 - y1 + 1);
     }

     BufferedImage createImage() {
         final BufferedImage img = new BufferedImage(200, 100, BufferedImage.TYPE_INT_ARGB);
         try {
             SwingUtilities.invokeAndWait(new Runnable() {
                 @Override
                 public void run() {
                     Graphics g = img.getGraphics();
                     g.setColor(new Color(getEmptyPixel()));
                     g.fillRect(0, 0, 10000, 10000);
                 }
             });
         } catch (InterruptedException e) {
             throw new RuntimeException(e);
         } catch (InvocationTargetException e) {
             throw new RuntimeException(e);
         }
         return img;
     }

     int subPixels(int pix1, int pix2) {
         if (pix1 == pix2) {
             return getEmptyPixel();
         }
         return pix1;
     }

     /**
      * Subtracts img2 from img1
      */
     BufferedImage subImages(BufferedImage img1, BufferedImage img2) {
         if (img1.getHeight() != img2.getHeight() ||
                 img1.getWidth() != img2.getWidth()) {
             throw new RuntimeException("Different sizes");
         }
         BufferedImage ret = new BufferedImage(img1.getWidth(), img1.getHeight(), img1.getType());

         for (int x = 0; x < ret.getWidth(); x++) {
             for (int y = 0; y < ret.getHeight(); y++) {
                 ret.setRGB(x, y, subPixels(img1.getRGB(x, y), img2.getRGB(x, y)));
             }
         }
         return ret;
     }

     void testUnderline() {
         System.out.println("  testUnderline()");

         final BufferedImage img1 = createImage();
         drawText(img1.getGraphics(), true, false, false);
         final Rectangle out1 = getPixelsOutline(img1);
         System.out.println("   Underlined: " + out1);

         final BufferedImage img2 = createImage();
         drawText(img2.getGraphics(), false, false, false);
         final Rectangle out2 = getPixelsOutline(img2);
         System.out.println("   Normal: " + out2);

         final BufferedImage img3 = subImages(img1, img2);
         final Rectangle out3 = getPixelsOutline(img3);
         System.out.println("   Sub: " + out3);

         // underline is not too thick
         assertTrue(out3.getHeight() <= 2);
         // not too wide
         assertTrue(out3.getWidth() * 0.8 < out2.getWidth());
         // not too low
         assertTrue(out3.getY() - (out1.getY() + out2.getHeight() - 1) < 4);
         // not too high
         assertTrue(out3.getY() - (out1.getY() + out2.getHeight() - 1) > 0);
     }

     void testStrikthrough() {
         System.out.println("  testStrikthrough()");

         final BufferedImage img1 = createImage();
         drawText(img1.getGraphics(), false, true, false);
         final Rectangle out1 = getPixelsOutline(img1);
         System.out.println("   Striked: " + out1);

         final BufferedImage img2 = createImage();
         drawText(img2.getGraphics(), false, false, false);
         final Rectangle out2 = getPixelsOutline(img2);
         System.out.println("   Normal: " + out2);

         final BufferedImage img3 = subImages(img1, img2);
         final Rectangle out3 = getPixelsOutline(img3);
         System.out.println("   Sub: " + out3);

         // strikethrough is not too thick
         assertTrue(out3.getHeight() <= 2);
         // not too wide
         assertTrue(out3.getWidth() * 0.8 < out2.getWidth());
         // not too low
         assertTrue(out3.getY() - (out1.getY() + out2.getHeight() - 1) < 0);
         // not too high
         assertTrue(out3.getY() - out1.getY() > 1);
     }
     void assertTrue(boolean b) {
         if (!b) {
             throw new RuntimeException("Assertion failed");
         }
     }

     static void testSuperScript() {
         System.out.println("testSuperScript()");
         bug8016833 b = new bug8016833() {
             @Override
             void setNormalStyle(Style style) {
                 StyleConstants.setSuperscript(style, true);
             }
         };
         b.testUnderline();
         b.testStrikthrough();
     }

     static void testSubScript() {
         System.out.println("testSubScript()");
         bug8016833 b = new bug8016833() {
             @Override
             void setNormalStyle(Style style) {
                 StyleConstants.setSubscript(style, true);
             }
         };
         b.testUnderline();
         b.testStrikthrough();
     }

     static void testNormalScript() {
         System.out.println("testNormalScript()");
         bug8016833 b = new bug8016833() {
             @Override
             void setNormalStyle(Style style) {
             }
         };
         b.testUnderline();
         b.testStrikthrough();
     }

     public static void main(String[] args) {
         testSubScript();
         testSuperScript();
         testNormalScript();
     }
 }
	/*
	* Copyright (c) 2014, 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.
	*/

	/* @test
	@bug 8016833
	@summary underlines and strikethroughs should be painted at the correct
	positions for different kind of text styles: normal, superscript and subscript
	@author Anton Nashatyrev
	@run main bug8016833
	*/
	import javax.swing.*;
	import javax.swing.text.BadLocationException;
	import javax.swing.text.Style;
	import javax.swing.text.StyleConstants;
	import javax.swing.text.StyledDocument;
	import java.awt.*;
	import java.awt.image.BufferedImage;
	import java.lang.reflect.InvocationTargetException;

	public class bug8016833 {

	void drawText(final Graphics g, final boolean underline, final boolean strikethrough, final boolean background) {
	drawText(g, "mama", underline, strikethrough, background);
	}

	void drawText(final Graphics g, final String text, final boolean underline, final boolean strikethrough, final boolean background) {
	try {
	SwingUtilities.invokeAndWait(new Runnable() {
	@Override
	public void run() {
	final JTextPane comp = new JTextPane();
	final StyledDocument doc = comp.getStyledDocument();

	Style style = comp.addStyle("superscript", null);
	setNormalStyle(style);

	if (underline) {
	StyleConstants.setUnderline(style, true);
	}
	if (strikethrough) {
	StyleConstants.setStrikeThrough(style, true);
	}
	if (background) {
	StyleConstants.setBackground(style, Color.BLUE);
	}
	try {
	doc.insertString(doc.getLength(), "mama", style);
	} catch (BadLocationException e) {
	throw new RuntimeException(e);
	}

	comp.setSize(200, 100);
	comp.paint(g);
	}
	});
	} catch (InterruptedException e) {
	throw new RuntimeException(e);
	} catch (InvocationTargetException e) {
	throw new RuntimeException(e);
	}
	}

	void setNormalStyle(Style style) {
	StyleConstants.setSuperscript(style, true);
	}

	int getEmptyPixel() {
	return 0xFFFFFFFF;
	}

	boolean isPixelEmpty(int argb) {
	return (argb & 0x00FFFFFF) == (getEmptyPixel() & 0x00FFFFFF);
	}

	boolean isLineEmpty(BufferedImage img, int coord, boolean isHorizontal) {
	int len = isHorizontal ? img.getWidth() : img.getHeight();
	for (int i = 0; i < len; i++) {
	int pixel = isHorizontal ? img.getRGB(i, coord) : img.getRGB(coord, i);
	if (!isPixelEmpty(pixel)) {
	return false;
	}
	}
	return true;
	}

	Rectangle getPixelsOutline(BufferedImage img) {
	int x1 = 0;
	while (x1 < img.getWidth() && isLineEmpty(img, x1, false)) {
	x1++;
	}
	int x2 = img.getWidth() - 1;
	while (x2 >= 0 && isLineEmpty(img, x2, false)) {
	x2--;
	}
	int y1 = 0;
	while (y1 < img.getHeight() && isLineEmpty(img, y1, true)) {
	y1++;
	}
	int y2 = img.getHeight() - 1;
	while (y2 >= 0 && isLineEmpty(img, y2, true)) {
	y2--;
	}

	return new Rectangle(x1, y1, x2 - x1 + 1, y2 - y1 + 1);
	}

	BufferedImage createImage() {
	final BufferedImage img = new BufferedImage(200, 100, BufferedImage.TYPE_INT_ARGB);
	try {
	SwingUtilities.invokeAndWait(new Runnable() {
	@Override
	public void run() {
	Graphics g = img.getGraphics();
	g.setColor(new Color(getEmptyPixel()));
	g.fillRect(0, 0, 10000, 10000);
	}
	});
	} catch (InterruptedException e) {
	throw new RuntimeException(e);
	} catch (InvocationTargetException e) {
	throw new RuntimeException(e);
	}
	return img;
	}

	int subPixels(int pix1, int pix2) {
	if (pix1 == pix2) {
	return getEmptyPixel();
	}
	return pix1;
	}

	/**
	* Subtracts img2 from img1
	*/
	BufferedImage subImages(BufferedImage img1, BufferedImage img2) {
	if (img1.getHeight() != img2.getHeight() \|\|
	img1.getWidth() != img2.getWidth()) {
	throw new RuntimeException("Different sizes");
	}
	BufferedImage ret = new BufferedImage(img1.getWidth(), img1.getHeight(), img1.getType());

	for (int x = 0; x < ret.getWidth(); x++) {
	for (int y = 0; y < ret.getHeight(); y++) {
	ret.setRGB(x, y, subPixels(img1.getRGB(x, y), img2.getRGB(x, y)));
	}
	}
	return ret;
	}

	void testUnderline() {
	System.out.println(" testUnderline()");

	final BufferedImage img1 = createImage();
	drawText(img1.getGraphics(), true, false, false);
	final Rectangle out1 = getPixelsOutline(img1);
	System.out.println(" Underlined: " + out1);

	final BufferedImage img2 = createImage();
	drawText(img2.getGraphics(), false, false, false);
	final Rectangle out2 = getPixelsOutline(img2);
	System.out.println(" Normal: " + out2);

	final BufferedImage img3 = subImages(img1, img2);
	final Rectangle out3 = getPixelsOutline(img3);
	System.out.println(" Sub: " + out3);

	// underline is not too thick
	assertTrue(out3.getHeight() <= 2);
	// not too wide
	assertTrue(out3.getWidth() * 0.8 < out2.getWidth());
	// not too low
	assertTrue(out3.getY() - (out1.getY() + out2.getHeight() - 1) < 4);
	// not too high
	assertTrue(out3.getY() - (out1.getY() + out2.getHeight() - 1) > 0);
	}

	void testStrikthrough() {
	System.out.println(" testStrikthrough()");

	final BufferedImage img1 = createImage();
	drawText(img1.getGraphics(), false, true, false);
	final Rectangle out1 = getPixelsOutline(img1);
	System.out.println(" Striked: " + out1);

	final BufferedImage img2 = createImage();
	drawText(img2.getGraphics(), false, false, false);
	final Rectangle out2 = getPixelsOutline(img2);
	System.out.println(" Normal: " + out2);

	final BufferedImage img3 = subImages(img1, img2);
	final Rectangle out3 = getPixelsOutline(img3);
	System.out.println(" Sub: " + out3);

	// strikethrough is not too thick
	assertTrue(out3.getHeight() <= 2);
	// not too wide
	assertTrue(out3.getWidth() * 0.8 < out2.getWidth());
	// not too low
	assertTrue(out3.getY() - (out1.getY() + out2.getHeight() - 1) < 0);
	// not too high
	assertTrue(out3.getY() - out1.getY() > 1);
	}
	void assertTrue(boolean b) {
	if (!b) {
	throw new RuntimeException("Assertion failed");
	}
	}

	static void testSuperScript() {
	System.out.println("testSuperScript()");
	bug8016833 b = new bug8016833() {
	@Override
	void setNormalStyle(Style style) {
	StyleConstants.setSuperscript(style, true);
	}
	};
	b.testUnderline();
	b.testStrikthrough();
	}

	static void testSubScript() {
	System.out.println("testSubScript()");
	bug8016833 b = new bug8016833() {
	@Override
	void setNormalStyle(Style style) {
	StyleConstants.setSubscript(style, true);
	}
	};
	b.testUnderline();
	b.testStrikthrough();
	}

	static void testNormalScript() {
	System.out.println("testNormalScript()");
	bug8016833 b = new bug8016833() {
	@Override
	void setNormalStyle(Style style) {
	}
	};
	b.testUnderline();
	b.testStrikthrough();
	}

	public static void main(String[] args) {
	testSubScript();
	testSuperScript();
	testNormalScript();
	}
	}