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8273634: [TEST_BUG] Improve javax/swing/text/ParagraphView/6364882/bu…
…g6364882.java Backport-of: 67e52a3078b0e7e522297c6008f5ac3792937c6a
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test/jdk/javax/swing/text/ParagraphView/6364882/bug6364882.java
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/* | ||
* Copyright (c) 2006, 2021, 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. | ||
*/ | ||
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import java.awt.Dimension; | ||
import java.awt.Graphics; | ||
import java.awt.Rectangle; | ||
import java.awt.Shape; | ||
import java.awt.image.BufferedImage; | ||
import java.io.File; | ||
import java.io.IOException; | ||
import java.util.ArrayList; | ||
import java.util.Arrays; | ||
import java.util.List; | ||
import javax.imageio.ImageIO; | ||
import javax.swing.JEditorPane; | ||
import javax.swing.JFrame; | ||
import javax.swing.SwingUtilities; | ||
import javax.swing.text.AbstractDocument; | ||
import javax.swing.text.BadLocationException; | ||
import javax.swing.text.Position; | ||
import javax.swing.text.View; | ||
import javax.swing.text.html.HTMLEditorKit; | ||
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import static java.awt.image.BufferedImage.TYPE_INT_RGB; | ||
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/* | ||
* @test | ||
* @bug 6364882 8273634 | ||
* @summary tests if broken and last lines in paragraph are not justified | ||
* @run main bug6364882 | ||
*/ | ||
public class bug6364882 { | ||
private static final String TEXT = | ||
"<html><body><p style=\"text-align: justify\">" | ||
+ "should be justified should be justified should be justified " | ||
+ "should be justified should be justified should be justified " | ||
+ "should be justified should be justified should be justified " | ||
+ "should be justified should be justified should be justified " | ||
+ "should be justified should be justified should be justified " | ||
+ "should be justified should be justified should be justified " | ||
+ "<br>" | ||
+ "should not be justified <br>" | ||
+ "should not be justified" | ||
+ "</body></html>"; | ||
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private static final int WIDTH = 580; | ||
private static final int HEIGHT = 600; | ||
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public static final String IMAGE_FILENAME = "editorPane.png"; | ||
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private static JEditorPane editorPane; | ||
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private static volatile List<Error> errors; | ||
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public static void main(String[] args) throws Exception { | ||
List<String> argList = Arrays.asList(args); | ||
// Show frame for visual inspection | ||
final boolean showFrame = argList.contains("-show"); | ||
// Save the rendered image even if the test passes | ||
// If the test fails, the image is always saved | ||
final boolean saveImage = argList.contains("-save"); | ||
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SwingUtilities.invokeAndWait(() -> { | ||
createUI(showFrame); | ||
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BufferedImage image = paintToImage(); | ||
errors = checkJustification(); | ||
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if (errors.size() > 0 || saveImage) { | ||
saveImage(image); | ||
dumpViews(); | ||
} | ||
}); | ||
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if (errors != null && errors.size() > 0) { | ||
String message = "Test failed: " + errors.size() + " error(s)"; | ||
System.err.println(message); | ||
for (Error e : errors) { | ||
e.printStackTrace(); | ||
} | ||
throw new RuntimeException(message + " - " + errors.get(0).getMessage()); | ||
} | ||
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System.out.println("Test passed"); | ||
} | ||
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private static void createUI(boolean showFrame) { | ||
editorPane = new JEditorPane(); | ||
editorPane.setEditorKit(new HTMLEditorKit()); | ||
((AbstractDocument) editorPane.getDocument()).setAsynchronousLoadPriority(-1); | ||
editorPane.setText(TEXT); | ||
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editorPane.setSize(WIDTH, HEIGHT); | ||
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if (showFrame) { | ||
JFrame frame = new JFrame("bug6364882"); | ||
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE); | ||
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frame.getContentPane().add(editorPane); | ||
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frame.setSize(WIDTH, HEIGHT); | ||
frame.setLocationRelativeTo(null); | ||
frame.setVisible(true); | ||
} | ||
} | ||
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private static List<Error> checkJustification() { | ||
final List<Error> errors = new ArrayList<>(15); | ||
try { | ||
final View rootView = editorPane.getUI().getRootView(editorPane); | ||
final View blockView = rootView.getView(0); | ||
assert blockView.getViewCount() == 2 | ||
: "blockView doesn't have 2 child views"; | ||
final View bodyView = blockView.getView(1); | ||
final View paragraphView = bodyView.getView(0); | ||
// Expected to have 6 rows in the paragraph | ||
assert paragraphView.getViewCount() == 6 | ||
: "paragraph doesn't have 6 rows of text"; | ||
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final Rectangle bounds = editorPane.getBounds(); | ||
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// Three rows should be justified | ||
final int oneX = getEndOfLineX(paragraphView.getView(0), bounds); | ||
if (oneX < bounds.width - 15) { | ||
errors.add(new Error("Text is not justified at line " + 0 + ": " | ||
+ oneX + " < " + (bounds.width - 15))); | ||
} | ||
for (int i = 1; i < 2; i++) { | ||
int lineX = getEndOfLineX(paragraphView.getView(i), | ||
bounds); | ||
if (oneX != lineX) { | ||
errors.add(new Error("Text is not justified at line " + i | ||
+ ": " + oneX + " != " + lineX)); | ||
} | ||
} | ||
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// Fourth row should not be justified | ||
final int fourX = getEndOfLineX(paragraphView.getView(3), bounds); | ||
if (oneX == fourX) { | ||
errors.add(new Error("Fourth line is justified: " | ||
+ oneX + " vs " + fourX)); | ||
} | ||
if (fourX > (bounds.width - bounds.width / 4)) { | ||
errors.add(new Error("Fourth line is justified: " | ||
+ fourX + " > " | ||
+ (bounds.width - bounds.width / 4))); | ||
} | ||
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// Fifth and sixth lines should not be justified | ||
final int fiveX = getEndOfLineX(paragraphView.getView(4), bounds); | ||
if (oneX == fiveX) { | ||
errors.add(new Error("Fifth line is justified: " | ||
+ oneX + "==" + fiveX)); | ||
} | ||
if (fiveX > bounds.width / 2) { | ||
errors.add(new Error("Fifth line is justified: " | ||
+ fiveX + " > " + (bounds.width / 2))); | ||
} | ||
if (fiveX > fourX) { | ||
errors.add(new Error("Fifth line is justified: " | ||
+ fiveX + " > " + fourX)); | ||
} | ||
final int sixX = getEndOfLineX(paragraphView.getView(5), bounds); | ||
if (fiveX != sixX) { | ||
errors.add(new Error("Fifth and sixth lines aren't of the " | ||
+ "same width: " + fiveX + " != " + sixX)); | ||
} | ||
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return errors; | ||
} catch (BadLocationException e) { | ||
throw new RuntimeException(e); | ||
} | ||
} | ||
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private static int getEndOfLineX(final View rowView, | ||
final Rectangle bounds) | ||
throws BadLocationException { | ||
final View inlineView = rowView.getView(0); | ||
Shape loc = inlineView.modelToView(inlineView.getEndOffset() - 1, | ||
bounds, | ||
Position.Bias.Backward); | ||
return loc instanceof Rectangle | ||
? ((Rectangle) loc).x | ||
: loc.getBounds().x; | ||
} | ||
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private static BufferedImage paintToImage() { | ||
Dimension bounds = editorPane.getSize(); | ||
BufferedImage im = new BufferedImage(bounds.width, bounds.height, | ||
TYPE_INT_RGB); | ||
Graphics g = im.getGraphics(); | ||
editorPane.paint(g); | ||
g.dispose(); | ||
return im; | ||
} | ||
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private static void saveImage(BufferedImage image) { | ||
try { | ||
ImageIO.write(image, "png", new File(IMAGE_FILENAME)); | ||
} catch (IOException e) { | ||
throw new RuntimeException(e); | ||
} | ||
} | ||
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private static void dumpViews() { | ||
final View view = editorPane.getUI().getRootView(editorPane); | ||
dumpViews(view, ""); | ||
} | ||
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private static void dumpViews(final View view, final String indent) { | ||
System.out.println(indent + view.getClass().getName() + ": " | ||
+ view.getStartOffset() + ", " + view.getEndOffset() | ||
+ "; span: " + view.getPreferredSpan(View.X_AXIS)); | ||
final String nestedIndent = indent + " "; | ||
for (int i = 0; i < view.getViewCount(); i++) { | ||
dumpViews(view.getView(i), nestedIndent); | ||
} | ||
} | ||
} |
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