8352966: Opensource Several Font related tests - Batch 2

Reviewed-by: aivanov

Author: Abhishek Kumar

test/jdk/java/awt/font/GlyphVector/TestOutline.java

@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 1999, 2025, 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.Font;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Rectangle;
+import java.awt.Shape;
+import java.awt.font.GlyphVector;
+import java.awt.geom.Point2D;
+import java.awt.geom.Rectangle2D;
+
+import javax.swing.JPanel;
+
+/*
+ * @test
+ * @bug 4255072
+ * @summary Display the outline of a GlyphVector that has overlapping 'O' characters in it.
+ *          The places where the strokes of the characters cross should be filled in.
+ * @library /java/awt/regtesthelpers
+ * @build PassFailJFrame
+ * @run main/manual TestOutline
+ */
+
+public final class TestOutline extends JPanel {
+    Shape outline;
+
+    public static void main(String[] args) throws Exception {
+        final String INSTRUCTIONS = """
+                Two overlapping 'O' characters should appear. Pass the test if
+                the places where the strokes of the characters cross is filled in.
+                Fail it if these places are not filled in.""";
+
+        PassFailJFrame.builder()
+                .title("TestOutline Instruction")
+                .instructions(INSTRUCTIONS)
+                .columns(35)
+                .splitUI(TestOutline::new)
+                .build()
+                .awaitAndCheck();
+    }
+
+    @Override
+    public Dimension getPreferredSize() {
+        return new Dimension(200, 250);
+    }
+
+    @Override
+    public void paint(Graphics g) {
+        Graphics2D g2d = (Graphics2D) g;
+        g2d.setColor(Color.WHITE);
+        g2d.fillRect(0, 0, getWidth(), getHeight());
+
+        if (outline == null) {
+            outline = createLayout(g2d);
+        }
+
+        g2d.setColor(Color.BLACK);
+        g2d.fill(outline);
+    }
+
+    private Shape createLayout(Graphics2D g2d) {
+        Font font = new Font(Font.DIALOG, Font.PLAIN, 144);
+        GlyphVector gv = font.createGlyphVector(g2d.getFontRenderContext(), "OO");
+        gv.performDefaultLayout();
+        Point2D pt = gv.getGlyphPosition(1);
+        double delta = -pt.getX() / 2.0;
+        pt.setLocation(pt.getX() + delta, pt.getY());
+        gv.setGlyphPosition(1, pt);
+
+        pt = gv.getGlyphPosition(2);
+        pt.setLocation(pt.getX() + delta, pt.getY());
+        gv.setGlyphPosition(2, pt);
+
+        Rectangle2D bounds = gv.getLogicalBounds();
+        Rectangle d = getBounds();
+        float x = (float) ((d.width - bounds.getWidth()) / 2 + bounds.getX());
+        float y = (float) ((d.height - bounds.getHeight()) / 2 - bounds.getY());
+        System.out.println("loc: " + x + ", " + y);
+        return gv.getOutline(x, y);
+    }
+}

test/jdk/java/awt/font/NumericShaper/ShaperTest.java

@@ -0,0 +1,180 @@
+/*
+ * Copyright (c) 2000, 2025, 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.Font;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Panel;
+import java.awt.font.FontRenderContext;
+import java.awt.font.LineBreakMeasurer;
+import java.awt.font.NumericShaper;
+import java.awt.font.TextAttribute;
+import java.awt.font.TextLayout;
+import java.text.AttributedCharacterIterator;
+import java.text.AttributedString;
+import java.util.HashMap;
+
+/*
+ * @test
+ * @bug 4210199
+ * @summary Draw a string with mixed ASCII digits and different scripts, applying
+ *          different kinds of numeric shapers. Verify that the proper digits are affected.
+ * @library /java/awt/regtesthelpers
+ * @build PassFailJFrame
+ * @run main/manual ShaperTest
+ */
+
+public class ShaperTest extends Panel {
+    private static final String fontName = Font.DIALOG;
+    private final TextLayout[][] layouts;
+    private final String[] titles;
+    private static final String text =
+            "-123 (English) 456.00 (Arabic) \u0641\u0642\u0643 -789 (Thai) \u0e01\u0e33 01.23";
+
+    public static void main(String[] args) throws Exception {
+        final String INSTRUCTIONS = """
+                A line of text containing mixed numeric and other text is drawn four times
+                (Depending on the font/platform, some of the other text may not be visible).
+
+                There are four runs of digits, '-123' at the front of the text, '456.00' after
+                English text, '-789' after Arabic text, and '01.23' after Thai text.
+
+                In the first line, all four runs of digits should be present as ASCII digits.
+
+                In the second line, all four runs of digits should be Arabic digits
+                (they may not be visible if the font does not support Arabic).
+
+                In the third line, the initial run of digits (-123) and the one following the
+                Arabic text (-789) should be Arabic, while the others should be ASCII.
+
+                In the fourth line, only the digits following the Arabic text (-789) should be Arabic,
+                and the others should be ASCII.
+
+                Pass the test if this is true.""";
+
+        PassFailJFrame.builder()
+                .title("ShaperTest Instruction")
+                .instructions(INSTRUCTIONS)
+                .columns(45)
+                .testUI(ShaperTest::createUI)
+                .logArea(8)
+                .build()
+                .awaitAndCheck();
+    }
+
+    private static Frame createUI() {
+        Frame frame = new Frame("ShaperTest Test UI");
+        frame.add(new ShaperTest());
+        frame.setSize(600, 400);
+        return frame;
+    }
+
+    void dumpChars(char[] chars) {
+        for (int i = 0; i < chars.length; ++i) {
+            char c = chars[i];
+            if (c < 0x7f) {
+                System.out.print(c);
+            } else {
+                String n = Integer.toHexString(c);
+                n = "0000".substring(n.length()) + n;
+                System.out.print("0x" + n);
+            }
+        }
+    }
+
+    private ShaperTest() {
+        setBackground(Color.WHITE);
+        setForeground(Color.BLACK);
+
+        Font textfont = new Font(fontName, Font.PLAIN, 12);
+        PassFailJFrame.log("asked for: " + fontName + " and got: " + textfont.getFontName());
+        setFont(textfont);
+
+        Font font = new Font(fontName, Font.PLAIN, 18);
+        PassFailJFrame.log("asked for: " + fontName + " and got: " + font.getFontName());
+
+        FontRenderContext frc = new FontRenderContext(null, false, false);
+
+        layouts = new TextLayout[5][2];
+
+        HashMap<AttributedCharacterIterator.Attribute, Object> map = new HashMap<>();
+        map.put(TextAttribute.FONT, font);
+        layouts[0][0] = new TextLayout(text, map, frc);
+        AttributedCharacterIterator iter = new AttributedString(text, map).getIterator();
+        layouts[0][1] = new LineBreakMeasurer(iter, frc).nextLayout(Float.MAX_VALUE);
+
+        NumericShaper arabic = NumericShaper.getShaper(NumericShaper.ARABIC);
+        map.put(TextAttribute.NUMERIC_SHAPING, arabic);
+        layouts[1][0] = new TextLayout(text, map, frc);
+        iter = new AttributedString(text, map).getIterator();
+        layouts[1][1] = new LineBreakMeasurer(iter, frc).nextLayout(Float.MAX_VALUE);
+
+        NumericShaper contextualArabic = NumericShaper.getContextualShaper(NumericShaper.ARABIC, NumericShaper.ARABIC);
+        map.put(TextAttribute.NUMERIC_SHAPING, contextualArabic);
+        layouts[2][0] = new TextLayout(text, map, frc);
+        iter = new AttributedString(text, map).getIterator();
+        layouts[2][1] = new LineBreakMeasurer(iter, frc).nextLayout(Float.MAX_VALUE);
+
+        NumericShaper contextualArabicASCII = NumericShaper.getContextualShaper(NumericShaper.ARABIC);
+        map.put(TextAttribute.NUMERIC_SHAPING, contextualArabicASCII);
+        layouts[3][0] = new TextLayout(text, map, frc);
+        iter = new AttributedString(text, map).getIterator();
+        layouts[3][1] = new LineBreakMeasurer(iter, frc).nextLayout(Float.MAX_VALUE);
+
+        NumericShaper contextualAll = NumericShaper.getContextualShaper(NumericShaper.ALL_RANGES);
+        map.put(TextAttribute.NUMERIC_SHAPING, contextualAll);
+        layouts[4][0] = new TextLayout(text, map, frc);
+        iter = new AttributedString(text, map).getIterator();
+        layouts[4][1] = new LineBreakMeasurer(iter, frc).nextLayout(Float.MAX_VALUE);
+
+        titles = new String[]{
+                "plain -- all digits ASCII",
+                "Arabic -- all digits Arabic",
+                "contextual Arabic default Arabic -- only leading digits and digits following Arabic text are Arabic",
+                "contextual Arabic default ASCII -- only digits following Arabic text are Arabic",
+                "contextual all default ASCII -- leading digits english, others correspond to context"
+        };
+    }
+
+    @Override
+    public void paint(Graphics g) {
+        Graphics2D g2d = (Graphics2D) g;
+
+        float x = 5;
+        float y = 5;
+
+        for (int i = 0; i < layouts.length; ++i) {
+            y += 18;
+            g2d.drawString(titles[i], x, y);
+            y += 4;
+
+            for (int j = 0; j < 2; ++j) {
+                y += layouts[i][j].getAscent();
+                layouts[i][j].draw(g2d, x, y);
+                y += layouts[i][j].getDescent() + layouts[i][j].getLeading();
+            }
+        }
+    }
+}

test/jdk/java/awt/font/TextLayout/TestGASPHint.java

@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2006, 2025, 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.Font;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.GraphicsEnvironment;
+import java.awt.RenderingHints;
+
+import javax.swing.JPanel;
+
+/*
+ * @test
+ * @bug 6320502
+ * @summary Display laid out text which substitutes invisible glyphs correctly.
+ * @library /java/awt/regtesthelpers /test/lib
+ * @build PassFailJFrame jtreg.SkippedException
+ * @run main/manual TestGASPHint
+ */
+
+public class TestGASPHint extends JPanel {
+    private static final String text = "\u0905\u0901\u0917\u094d\u0930\u0947\u091c\u093c\u0940";
+    private static final Font font = getPhysicalFontForText(text, Font.PLAIN, 36);
+
+    public static void main(String[] args) throws Exception {
+        if (font == null) {
+            throw new jtreg.SkippedException("No Devanagari font found. Test Skipped");
+        }
+
+        final String INSTRUCTIONS = """
+                A short piece of Devanagari text should appear without any
+                artifacts. In particular there should be no "empty rectangles"
+                representing the missing glyph.
+
+                If the above condition is true, press Pass, else Fail.""";
+
+        PassFailJFrame.builder()
+                .title("TestGASPHint Instruction")
+                .instructions(INSTRUCTIONS)
+                .columns(32)
+                .splitUI(TestGASPHint::new)
+                .build()
+                .awaitAndCheck();
+    }
+
+    @Override
+    public Dimension getPreferredSize() {
+        return new Dimension(200, 200);
+    }
+
+    @Override
+    public void paint(Graphics g) {
+        Graphics2D g2d = (Graphics2D) g;
+
+        g2d.setColor(Color.WHITE);
+        g2d.fillRect(0, 0, getWidth(), getHeight());
+
+        g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+                             RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);
+
+        g2d.setFont(font);
+        g2d.setColor(Color.BLACK);
+        g2d.drawString(text, 10, 50);
+    }
+
+    /*
+     * Searches the available system fonts for a font which can display all the
+     * glyphs in the input text correctly. Returns null, if not found.
+     */
+    private static Font getPhysicalFontForText(String text, int style, int size) {
+        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
+        String[] names = ge.getAvailableFontFamilyNames();
+
+        for (String n : names) {
+            switch (n.toLowerCase()) {
+                case "dialog":
+                case "dialoginput":
+                case "serif":
+                case "sansserif":
+                case "monospaced":
+                    break;
+                default:
+                    Font f = new Font(n, style, size);
+                    if (f.canDisplayUpTo(text) == -1) {
+                        return f;
+                    }
+            }
+        }
+        return null;
+    }
+}