Regression test on https://bugs.openjdk.java.net/browse/JDK-8139176

JBR-5008 remove extra file jb/java/awt/font/DrawTest.java from colliding group (cherry picked from commit 6f1c0a6) (cherry picked from commit 63130fd461) add regression test on https://bugs.openjdk.java.net/browse/JDK-8139176 (cherry picked from commit 380c17456c) (cherry picked from commit 6f1c0a6) (cherry picked from commit 63130fd461) (cherry picked from commit 33bbc7d54d)
2025-12-06 09:29:38 +01:00 · 2016-09-29 09:35:14 +07:00
parent a26d3c1854
commit 688691aa3a
1 changed files with 139 additions and 0 deletions
--- a/test/jdk/jb/java/awt/Font/TextLayout/DrawTest.java
+++ b/test/jdk/jb/java/awt/Font/TextLayout/DrawTest.java
@@ -0,0 +1,139 @@
+/**
+ * @test 1.0 2016/08/25
+ * @bug 8139176
+ * @run main DrawTest
+ * @summary java.awt.TextLayout does not handle correctly the bolded logical fonts (Serif)
+ */
+
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Insets;
+import java.awt.font.TextLayout;
+import java.awt.image.BufferedImage;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+
+// The test against java.awt.font.TextLayout, it draws the text "Gerbera" twise
+// via the methods Graphics.drawString and TextLayout.draw and then it checks
+// that both output have the same width.
+// The test does this checking for two styles of the font Serif - PLAIN and
+// BOLD in course one by one.
+
+public class DrawTest {
+    static final Font plain = new Font("Serif", Font.PLAIN, 32);
+    static final Font bold = new Font("Serif", Font.BOLD, 32);
+    static int testCaseNo = 1;
+    static final String txt = "Gerbera";
+    static boolean isPassed = true;
+    static String errMsg = "";
+    static String testCaseName;
+
+    public static void main(String[] args) {
+        final JFrame frame = new JFrame();
+        frame.getContentPane().setPreferredSize(new Dimension(116, 75));
+        frame.pack();
+        frame.setVisible(true);
+        Insets insets = frame.getInsets();
+        System.out.println(insets);
+        final JPanel panel = new JPanel() {
+
+            private void drawString(Graphics g, Font font) {
+                g.setFont(font);
+                g.drawString(txt, 0, 32);
+            }
+
+            private void drawTextLayout(Graphics g, Font font) {
+                TextLayout tl = new TextLayout(txt,
+                        font,
+                        g.getFontMetrics(font).getFontRenderContext());
+                tl.draw((Graphics2D) g, 0, 65);
+            }
+
+            /**
+             * @see javax.swing.JComponent#paintComponent(java.awt.Graphics)
+             */
+            @Override
+            protected void paintComponent(Graphics g) {
+                g.setColor(Color.WHITE);
+                g.fillRect(0, 0, getWidth(), getHeight());
+                g.setColor(Color.BLACK);
+
+                int width;
+                TextLayout tl;
+                if (testCaseNo == 1) {
+                    // Ok.
+                    // For the PLAIN font, the text painted by g.drawString and the text layout are the same.
+                    testCaseName = "PLAIN";
+                    errMsg = "plained";
+                    drawString(g, plain);
+                    drawTextLayout(g, plain);
+                } else {
+                    // Not Ok.
+                    // For the BOLD font, the text painted by g.drawString and the text layout are NOT the same.
+                    testCaseName = "BOLD";
+                    errMsg = "bolded";
+                    drawString(g, bold);
+                    drawTextLayout(g, bold);
+                }
+            }
+        };
+        frame.getContentPane().add(panel);
+        frame.setVisible(true);
+
+        for (testCaseNo = 1; testCaseNo <= 2; testCaseNo++) {
+            BufferedImage paintImage = getScreenShot(panel);
+            if (testCaseNo == 2) {
+                panel.revalidate();
+                panel.repaint();
+            }
+            paintImage = getScreenShot(panel);
+            int width1 = charWidth(paintImage, 0, 9, 116, 23);
+            int width2 = charWidth(paintImage, 0, 42, 116, 23);
+
+            if (width1 != width2) {
+                System.out.println(testCaseName + " test case FAILED");
+                isPassed = false;
+            } else
+                System.out.println(testCaseName + " test case PASSED");
+        }
+
+        frame.dispose();
+        if (!isPassed) {
+            throw new RuntimeException(errMsg + " logical fonts (Serif) was not correctly handled");
+        }
+    }
+
+    static private BufferedImage getScreenShot(JPanel panel) {
+        BufferedImage bi = new BufferedImage(
+                panel.getWidth(), panel.getHeight(), BufferedImage.TYPE_INT_ARGB);
+        panel.paint(bi.getGraphics());
+        return bi;
+    }
+
+    private static int charWidth(BufferedImage bufferedImage, int x, int y, int width, int height) {
+        int rgb;
+        int returnWidth = 0;
+        for (int row = y; row < y + height; row++) {
+            for (int col = x; col < x + width; col++) {
+                // remove transparance
+                rgb = bufferedImage.getRGB(col, row) & 0x00FFFFFF;
+
+                int r = rgb >> 16;
+                int g = (rgb >> 8) & 0x000000FF;
+                int b = rgb & 0x00000FF;
+                if (r == g && g == b && b == 255)
+                    System.out.print(" .");
+                else
+                    System.out.print(" X");
+
+                if (rgb != 0xFFFFFF && returnWidth < col)
+                    returnWidth = col;
+            }
+            System.out.println();
+        }
+        return returnWidth;
+    }
+}