| /* |
| * 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.Dimension; |
| import java.awt.Graphics; |
| import java.awt.Graphics2D; |
| import java.awt.GridBagConstraints; |
| import java.awt.GridBagLayout; |
| import java.awt.Insets; |
| import java.awt.Point; |
| import java.awt.Rectangle; |
| import java.awt.event.ActionEvent; |
| import java.awt.event.ActionListener; |
| import java.awt.event.MouseAdapter; |
| import java.awt.event.MouseEvent; |
| import java.awt.event.MouseListener; |
| import java.awt.event.WindowAdapter; |
| import java.awt.event.WindowEvent; |
| import java.awt.geom.Line2D; |
| import java.awt.geom.Point2D; |
| import java.awt.geom.Rectangle2D; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import javax.swing.JButton; |
| import javax.swing.JFrame; |
| import javax.swing.JPanel; |
| import javax.swing.JTextArea; |
| import javax.swing.JTextField; |
| import javax.swing.SwingUtilities; |
| import javax.swing.event.ChangeListener; |
| import javax.swing.plaf.TextUI; |
| import javax.swing.text.BadLocationException; |
| import javax.swing.text.Caret; |
| import javax.swing.text.DefaultHighlighter; |
| import javax.swing.text.Document; |
| import javax.swing.text.Highlighter; |
| import javax.swing.text.JTextComponent; |
| import javax.swing.text.Position; |
| |
| /* |
| * @test |
| * @bug 8163175 |
| * @summary PlainView.modelToView() method should return Rectangle2D |
| * @run main/manual CaretFloatingPointAPITest |
| */ |
| public class CaretFloatingPointAPITest { |
| |
| private static volatile boolean testResult = false; |
| private static volatile CountDownLatch countDownLatch; |
| private static final String INSTRUCTIONS = "INSTRUCTIONS:\n\n" |
| + "Verify that cursor position is not rounded on HiDPI display.\n\n" |
| + "If the display does not support HiDPI mode press PASS.\n\n" |
| + "1. Press the Right-Arrow key several times to move the red caret" |
| + " in the text field.\n" |
| + "2. Check that the caret has the same position between chars" |
| + " in diffrent locations.\n\n" |
| + "If so, press PASS, else press FAIL.\n"; |
| |
| public static void main(String args[]) throws Exception { |
| countDownLatch = new CountDownLatch(1); |
| |
| SwingUtilities.invokeLater(CaretFloatingPointAPITest::createUI); |
| countDownLatch.await(15, TimeUnit.MINUTES); |
| |
| if (!testResult) { |
| throw new RuntimeException("Test fails!"); |
| } |
| } |
| |
| private static void createUI() { |
| |
| final JFrame mainFrame = new JFrame("Metal L&F icons test"); |
| GridBagLayout layout = new GridBagLayout(); |
| JPanel mainControlPanel = new JPanel(layout); |
| JPanel resultButtonPanel = new JPanel(layout); |
| |
| GridBagConstraints gbc = new GridBagConstraints(); |
| |
| JTextField textField = new JTextField("aaaaaaaaaaaaaaaaaaaaaaa"); |
| Dimension size = new Dimension(400, 100); |
| textField.setPreferredSize(size); |
| textField.setFont(textField.getFont().deriveFont(28.0f)); |
| textField.setCaretColor(Color.RED); |
| textField.setCaret(new CustomCaret()); |
| gbc.gridx = 0; |
| gbc.gridy = 0; |
| gbc.insets = new Insets(5, 15, 5, 15); |
| gbc.fill = GridBagConstraints.HORIZONTAL; |
| mainControlPanel.add(textField, gbc); |
| |
| JTextArea instructionTextArea = new JTextArea(); |
| instructionTextArea.setText(INSTRUCTIONS); |
| instructionTextArea.setEditable(false); |
| instructionTextArea.setBackground(Color.white); |
| |
| gbc.gridx = 0; |
| gbc.gridy = 1; |
| gbc.fill = GridBagConstraints.HORIZONTAL; |
| mainControlPanel.add(instructionTextArea, gbc); |
| |
| JButton passButton = new JButton("Pass"); |
| passButton.setActionCommand("Pass"); |
| passButton.addActionListener((ActionEvent e) -> { |
| testResult = true; |
| mainFrame.dispose(); |
| countDownLatch.countDown(); |
| |
| }); |
| |
| JButton failButton = new JButton("Fail"); |
| failButton.setActionCommand("Fail"); |
| failButton.addActionListener(new ActionListener() { |
| @Override |
| public void actionPerformed(ActionEvent e) { |
| mainFrame.dispose(); |
| countDownLatch.countDown(); |
| } |
| }); |
| |
| gbc.gridx = 0; |
| gbc.gridy = 0; |
| |
| resultButtonPanel.add(passButton, gbc); |
| |
| gbc.gridx = 1; |
| gbc.gridy = 0; |
| resultButtonPanel.add(failButton, gbc); |
| |
| gbc.gridx = 0; |
| gbc.gridy = 2; |
| mainControlPanel.add(resultButtonPanel, gbc); |
| |
| mainFrame.add(mainControlPanel); |
| mainFrame.pack(); |
| |
| mainFrame.addWindowListener(new WindowAdapter() { |
| |
| @Override |
| public void windowClosing(WindowEvent e) { |
| mainFrame.dispose(); |
| countDownLatch.countDown(); |
| } |
| }); |
| mainFrame.setVisible(true); |
| } |
| |
| static class CustomCaret implements Caret { |
| |
| private JTextComponent component; |
| private boolean visible; |
| private boolean selectionVisible = true; |
| int blinkRate; |
| int dot; |
| int mark; |
| Position.Bias dotBias; |
| Position.Bias markBias; |
| Object selectionTag; |
| Point2D magicCaretPosition; |
| |
| private MouseListener mouseListener = new CaretMouseListener(); |
| |
| @Override |
| public void install(JTextComponent c) { |
| this.component = c; |
| c.addMouseListener(mouseListener); |
| } |
| |
| @Override |
| public void deinstall(JTextComponent c) { |
| c.removeMouseListener(mouseListener); |
| this.component = null; |
| } |
| |
| @Override |
| public void paint(Graphics g) { |
| |
| if (component == null) { |
| return; |
| } |
| |
| int dot = getDot(); |
| Rectangle2D r = null; |
| try { |
| r = component.modelToView2D(dot); |
| } catch (BadLocationException e) { |
| return; |
| } |
| |
| if (r == null) { |
| return; |
| } |
| |
| Rectangle2D cr = getCaretRectangle(r); |
| repaint(cr.getBounds()); |
| |
| g.setColor(component.getCaretColor()); |
| float cx = (float) cr.getX(); |
| float cy = (float) cr.getY(); |
| float cw = (float) cr.getWidth(); |
| float ch = (float) cr.getHeight(); |
| float c = cx + cw / 2; |
| |
| Graphics2D g2d = (Graphics2D) g; |
| g2d.draw(new Line2D.Float(c, cy, c, cy + ch)); |
| g2d.draw(new Line2D.Float(cx, cy, cx + cw, cy)); |
| g2d.draw(new Line2D.Float(cx, cy + ch, cx + cw, cy + ch)); |
| } |
| |
| void repaint(Rectangle r) { |
| component.repaint(r); |
| } |
| |
| Rectangle2D getCaretRectangle(Rectangle2D r) { |
| int d = 3; |
| double cx = r.getX() - d; |
| double cy = r.getY(); |
| double cw = 2 * d; |
| double ch = r.getHeight(); |
| return new Rectangle2D.Double(cx, cy, cw, ch); |
| } |
| |
| @Override |
| public void addChangeListener(ChangeListener l) { |
| } |
| |
| @Override |
| public void removeChangeListener(ChangeListener l) { |
| } |
| |
| @Override |
| public boolean isVisible() { |
| return visible; |
| } |
| |
| @Override |
| public void setVisible(boolean v) { |
| this.visible = true; |
| } |
| |
| @Override |
| public boolean isSelectionVisible() { |
| return selectionVisible; |
| } |
| |
| @Override |
| public void setSelectionVisible(boolean v) { |
| this.selectionVisible = v; |
| updateSelection(); |
| } |
| |
| @Override |
| public void setMagicCaretPosition(Point p) { |
| magicCaretPosition = p; |
| } |
| |
| @Override |
| public Point getMagicCaretPosition() { |
| if (magicCaretPosition != null) { |
| return new Point((int) magicCaretPosition.getX(), |
| (int) magicCaretPosition.getY()); |
| } |
| return null; |
| } |
| |
| @Override |
| public void setBlinkRate(int rate) { |
| this.blinkRate = rate; |
| } |
| |
| @Override |
| public int getBlinkRate() { |
| return blinkRate; |
| } |
| |
| @Override |
| public int getDot() { |
| return dot; |
| } |
| |
| @Override |
| public int getMark() { |
| return mark; |
| } |
| |
| @Override |
| public void setDot(int dot) { |
| setDot(dot, Position.Bias.Forward); |
| } |
| |
| private void setDot(int dot, Position.Bias bias) { |
| handleSetDot(dot, bias); |
| updateSelection(); |
| } |
| |
| @Override |
| public void moveDot(int dot) { |
| moveDot(dot, Position.Bias.Forward); |
| } |
| |
| private void moveDot(int dot, Position.Bias bias) { |
| changeCaretPosition(dot, bias); |
| updateSelection(); |
| } |
| |
| void handleSetDot(int dot, Position.Bias dotBias) { |
| |
| if (component == null) { |
| return; |
| } |
| |
| Document doc = component.getDocument(); |
| if (doc != null) { |
| dot = Math.min(dot, doc.getLength()); |
| } |
| |
| dot = Math.max(dot, 0); |
| |
| if (dot == 0) { |
| dotBias = Position.Bias.Forward; |
| } |
| |
| mark = dot; |
| |
| if (this.dot != dot || this.dotBias != dotBias) { |
| changeCaretPosition(dot, dotBias); |
| updateSelection(); |
| } |
| |
| this.markBias = this.dotBias; |
| } |
| |
| void changeCaretPosition(int dot, Position.Bias dotBias) { |
| this.dot = dot; |
| this.dotBias = dotBias; |
| setMagicCaretPosition(null); |
| SwingUtilities.invokeLater(this::repaintNewCaret); |
| } |
| |
| private void updateSelection() { |
| Highlighter h = component.getHighlighter(); |
| if (h != null) { |
| int p0 = Math.min(dot, mark); |
| int p1 = Math.max(dot, mark); |
| |
| if (p0 == p1 || !selectionVisible) { |
| if (selectionTag != null) { |
| h.removeHighlight(selectionTag); |
| selectionTag = null; |
| } |
| } else { |
| try { |
| if (selectionTag != null) { |
| h.changeHighlight(selectionTag, p0, p1); |
| } else { |
| Highlighter.HighlightPainter p = getSelectionPainter(); |
| selectionTag = h.addHighlight(p0, p1, p); |
| } |
| } catch (BadLocationException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| } |
| |
| void repaintNewCaret() { |
| if (component != null) { |
| TextUI mapper = component.getUI(); |
| Document doc = component.getDocument(); |
| if ((mapper != null) && (doc != null)) { |
| Rectangle2D newLoc; |
| try { |
| newLoc = mapper.modelToView2D(component, this.dot, this.dotBias); |
| } catch (BadLocationException e) { |
| newLoc = null; |
| } |
| if (newLoc != null) { |
| adjustVisibility(newLoc.getBounds()); |
| if (getMagicCaretPosition() == null) { |
| setMagicCaretPosition(new Point((int) newLoc.getX(), |
| (int) newLoc.getY())); |
| } |
| } |
| damage(newLoc.getBounds()); |
| } |
| } |
| } |
| |
| protected Highlighter.HighlightPainter getSelectionPainter() { |
| return DefaultHighlighter.DefaultPainter; |
| } |
| |
| protected void adjustVisibility(Rectangle nloc) { |
| if (component == null) { |
| return; |
| } |
| if (SwingUtilities.isEventDispatchThread()) { |
| component.scrollRectToVisible(nloc); |
| } else { |
| SwingUtilities.invokeLater(() -> { |
| component.scrollRectToVisible(nloc); |
| }); |
| } |
| } |
| |
| protected synchronized void damage(Rectangle r) { |
| if (r != null && component != null) { |
| component.repaint(r); |
| } |
| } |
| |
| private class CaretMouseListener extends MouseAdapter { |
| |
| @Override |
| public void mousePressed(MouseEvent e) { |
| Point pt = new Point(e.getX(), e.getY()); |
| Position.Bias[] biasRet = new Position.Bias[1]; |
| int pos = component.getUI().viewToModel(component, pt, biasRet); |
| if (biasRet[0] == null) { |
| biasRet[0] = Position.Bias.Forward; |
| } |
| if (pos >= 0) { |
| setDot(pos); |
| } |
| } |
| } |
| } |
| } |