| /* |
| * 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.Graphics2D; |
| import java.awt.image.BufferedImage; |
| import javax.swing.JTable; |
| import javax.swing.SwingUtilities; |
| import javax.swing.table.AbstractTableModel; |
| import javax.swing.table.DefaultTableCellRenderer; |
| import javax.swing.table.TableModel; |
| |
| /* |
| * @test |
| * @bug 8133919 |
| * @summary [macosx] JTable grid lines are incorrectly positioned on HiDPI display |
| * @run main DrawGridLinesTest |
| */ |
| public class DrawGridLinesTest { |
| |
| private static final int WIDTH = 300; |
| private static final int HEIGHT = 150; |
| private static final Color GRID_COLOR = Color.BLACK; |
| private static final Color TABLE_BACKGROUND_COLOR = Color.BLUE; |
| private static final Color CELL_RENDERER_BACKGROUND_COLOR = Color.YELLOW; |
| private static final int SCALE = 2; |
| |
| public static void main(String[] args) throws Exception { |
| SwingUtilities.invokeAndWait(DrawGridLinesTest::checkTableGridLines); |
| } |
| |
| private static void checkTableGridLines() { |
| |
| TableModel dataModel = new AbstractTableModel() { |
| public int getColumnCount() { |
| return 10; |
| } |
| |
| public int getRowCount() { |
| return 10; |
| } |
| |
| public Object getValueAt(int row, int col) { |
| return " "; |
| } |
| }; |
| |
| DefaultTableCellRenderer r = new DefaultTableCellRenderer(); |
| r.setOpaque(true); |
| r.setBackground(CELL_RENDERER_BACKGROUND_COLOR); |
| |
| JTable table = new JTable(dataModel); |
| table.setSize(WIDTH, HEIGHT); |
| table.setDefaultRenderer(Object.class, r); |
| table.setGridColor(GRID_COLOR); |
| table.setShowGrid(true); |
| table.setShowHorizontalLines(true); |
| table.setShowVerticalLines(true); |
| table.setBackground(TABLE_BACKGROUND_COLOR); |
| |
| checkTableGridLines(table); |
| } |
| |
| private static void checkTableGridLines(JTable table) { |
| |
| int w = SCALE * WIDTH; |
| int h = SCALE * HEIGHT; |
| |
| BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); |
| Graphics2D g = img.createGraphics(); |
| g.scale(SCALE, SCALE); |
| table.paint(g); |
| g.dispose(); |
| |
| int size = Math.min(w, h); |
| int rgb = TABLE_BACKGROUND_COLOR.getRGB(); |
| |
| for (int i = 0; i < size; i++) { |
| if (img.getRGB(i, i) == rgb || img.getRGB(i, size - i - 1) == rgb) { |
| throw new RuntimeException("Artifacts in the table background color!"); |
| } |
| } |
| } |
| } |