PDFBOX-5924: apply font scaling when using Zapf Dingbats font; replace RightArrow with own arrow path because of problems with DejaVu Sans

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1922583 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

pdfbox/src/main/java/org/apache/pdfbox/pdmodel/interactive/annotation/handlers/PDTextAppearanceHandler.java

@@ -20,13 +20,15 @@
 import java.awt.geom.PathIterator;
 import java.io.IOException;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 import org.apache.logging.log4j.Logger;
 import org.apache.logging.log4j.LogManager;
 import org.apache.pdfbox.cos.COSName;
 import org.apache.pdfbox.pdmodel.PDAppearanceContentStream;
 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.common.PDRectangle;
+import org.apache.pdfbox.pdmodel.font.PDType1Font;
 import org.apache.pdfbox.pdmodel.font.Standard14Fonts;
 import org.apache.pdfbox.pdmodel.font.Standard14Fonts.FontName;
 import org.apache.pdfbox.pdmodel.graphics.blend.BlendMode;
@@ -429,7 +431,10 @@ private void drawStar(PDAnnotationText annotation, final PDAppearanceContentStre
         contentStream.setLineCapStyle(0);
         contentStream.setLineWidth(0.59f); // value from Adobe
 
-        contentStream.transform(Matrix.getScaleInstance(0.001f * min / 0.8f, 0.001f * min / 0.8f));
+        List<Number> fontMatrix = new PDType1Font(FontName.ZAPF_DINGBATS).getFontBoxFont().getFontMatrix();
+        float xScale = (float) fontMatrix.get(0);
+        float yScale = (float) fontMatrix.get(3);
+        contentStream.transform(Matrix.getScaleInstance(xScale * min / 0.8f, yScale * min / 0.8f));
 
         // we get the shape of a Zapf Dingbats star (0x2605) and use that one.
         // Adobe uses a different font (which one?), or created the shape from scratch.
@@ -453,7 +458,10 @@ private void drawCheck(PDAnnotationText annotation, final PDAppearanceContentStr
         contentStream.setLineCapStyle(0);
         contentStream.setLineWidth(0.59f); // value from Adobe
 
-        contentStream.transform(Matrix.getScaleInstance(0.001f * min / 0.8f, 0.001f * min / 0.8f));
+        List<Number> fontMatrix = new PDType1Font(FontName.ZAPF_DINGBATS).getFontBoxFont().getFontMatrix();
+        float xScale = (float) fontMatrix.get(0);
+        float yScale = (float) fontMatrix.get(3);
+        contentStream.transform(Matrix.getScaleInstance(xScale * min / 0.8f, yScale * min / 0.8f));
         contentStream.transform(Matrix.getTranslateInstance(0, 50));
 
         // we get the shape of a Zapf Dingbats check (0x2714) and use that one.
@@ -476,7 +484,10 @@ private void drawRightPointer(PDAnnotationText annotation, final PDAppearanceCon
         contentStream.setLineCapStyle(0);
         contentStream.setLineWidth(0.59f); // value from Adobe
 
-        contentStream.transform(Matrix.getScaleInstance(0.001f * min / 0.8f, 0.001f * min / 0.8f));
+        List<Number> fontMatrix = new PDType1Font(FontName.ZAPF_DINGBATS).getFontBoxFont().getFontMatrix();
+        float xScale = (float) fontMatrix.get(0);
+        float yScale = (float) fontMatrix.get(3);
+        contentStream.transform(Matrix.getScaleInstance(xScale * min / 0.8f, yScale * min / 0.8f));
         contentStream.transform(Matrix.getTranslateInstance(0, 50));
 
         // we get the shape of a Zapf Dingbats right pointer (0x27A4) and use that one.
@@ -577,15 +588,14 @@ private void drawRightArrow(PDAnnotationText annotation, final PDAppearanceConte
         contentStream.restoreGraphicsState();
 
         contentStream.saveGraphicsState();
-        // rescale so that the glyph fits into circle and move it to circle center
-        // values gathered by trial and error
-        contentStream.transform(Matrix.getScaleInstance(0.001f * min / 1.3f, 0.001f * min / 1.3f));
-        contentStream.transform(Matrix.getTranslateInstance(200, 300));
-
-        // we get the shape of a Zapf Dingbats right arrow (0x2794) and use that one.
-        // Adobe uses a different font (which one?), or created the shape from scratch.
-        GeneralPath path = Standard14Fonts.getGlyphPath(FontName.ZAPF_DINGBATS, "a160");
-        addPath(contentStream, path);
+        contentStream.moveTo(8, 17.5f);
+        contentStream.lineTo(8, 13.5f);
+        contentStream.lineTo(3, 13.5f);
+        contentStream.lineTo(3, 6.5f);
+        contentStream.lineTo(8, 6.5f);
+        contentStream.lineTo(8, 2.5f);
+        contentStream.lineTo(18, 10);
+        contentStream.closePath();
         contentStream.restoreGraphicsState();
         // surprisingly, this one not counterclockwise.
         drawCircle(contentStream, min / 2, min / 2, min / 2 - 1);