8133919: [macosx] JTable grid lines are incorrectly positioned on HiDPI display
Reviewed-by: serb
--- a/jdk/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java Thu Dec 22 12:09:34 2016 +0300
+++ b/jdk/src/java.desktop/share/classes/javax/swing/plaf/basic/BasicTableUI.java Thu Dec 22 12:17:56 2016 +0300
@@ -2018,7 +2018,7 @@
int y = damagedArea.y;
for (int row = rMin; row <= rMax; row++) {
y += table.getRowHeight(row);
- g.drawLine(damagedArea.x, y - 1, tableWidth - 1, y - 1);
+ SwingUtilities2.drawHLine(g, damagedArea.x, tableWidth - 1, y - 1);
}
}
if (table.getShowVerticalLines()) {
@@ -2030,14 +2030,14 @@
for (int column = cMin; column <= cMax; column++) {
int w = cm.getColumn(column).getWidth();
x += w;
- g.drawLine(x - 1, 0, x - 1, tableHeight - 1);
+ SwingUtilities2.drawVLine(g, x - 1, 0, tableHeight - 1);
}
} else {
x = damagedArea.x;
for (int column = cMax; column >= cMin; column--) {
int w = cm.getColumn(column).getWidth();
x += w;
- g.drawLine(x - 1, 0, x - 1, tableHeight - 1);
+ SwingUtilities2.drawVLine(g, x - 1, 0, tableHeight - 1);
}
}
}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/javax/swing/JTable/8133919/DrawGridLInesTest.java Thu Dec 22 12:17:56 2016 +0300
@@ -0,0 +1,103 @@
+/*
+ * 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!");
+ }
+ }
+ }
+}