From 3c3f663bfe25e296b46344a2825c6a2714c29c89 Mon Sep 17 00:00:00 2001
From: Sven Gothel <sgothel@jausoft.com>
Date: Tue, 14 Feb 2023 09:42:34 +0100
Subject: Graph Font: getGlyph(char symbol -> int glyph_id), add kerning to
 getPointsBoundsFU(); Glyph: Drop getSymbol()

---
 .../jogamp/graph/curve/opengl/TextRegionUtil.java  |  5 ++-
 src/jogl/classes/com/jogamp/graph/font/Font.java   |  3 +-
 .../jogamp/graph/font/typecast/TypecastFont.java   | 45 ++++++++++++----------
 .../jogamp/graph/font/typecast/TypecastGlyph.java  | 10 +----
 .../graph/font/typecast/TypecastRenderer.java      |  8 ++--
 5 files changed, 33 insertions(+), 38 deletions(-)

(limited to 'src/jogl')

diff --git a/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRegionUtil.java b/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRegionUtil.java
index 4af40bf1c..f9db8c655 100644
--- a/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRegionUtil.java
+++ b/src/jogl/classes/com/jogamp/graph/curve/opengl/TextRegionUtil.java
@@ -119,14 +119,15 @@ public class TextRegionUtil {
                 } else {
                     temp1.setToIdentity();
                 }
-                final Font.Glyph glyph = font.getGlyph(character);
+                final int glyph_id = font.getGlyphID(character);
+                final Font.Glyph glyph = font.getGlyph(glyph_id);
                 final OutlineShape glyphShape = glyph.getShape();
                 if( null == glyphShape ) {
                     left_glyph = null;
                     continue;
                 }
                 if( null != left_glyph ) {
-                    advanceTotal += left_glyph.getKerning(glyph.getID());
+                    advanceTotal += left_glyph.getKerning(glyph_id);
                 }
                 temp1.translate(advanceTotal, y, temp2);
                 visitor.visit(glyphShape, temp1);
diff --git a/src/jogl/classes/com/jogamp/graph/font/Font.java b/src/jogl/classes/com/jogamp/graph/font/Font.java
index 2d26b1a85..1b852436f 100644
--- a/src/jogl/classes/com/jogamp/graph/font/Font.java
+++ b/src/jogl/classes/com/jogamp/graph/font/Font.java
@@ -161,7 +161,6 @@ public interface Font {
         public static final int ID_SPACE = 3;
 
         Font getFont();
-        char getSymbol();
 
         /** Return this glyph's ID */
         int getID();
@@ -262,7 +261,7 @@ public interface Font {
 
     int getGlyphID(final char symbol);
 
-    Glyph getGlyph(final char symbol);
+    Glyph getGlyph(final int glyph_id);
 
     int getNumGlyphs();
 
diff --git a/src/jogl/classes/jogamp/graph/font/typecast/TypecastFont.java b/src/jogl/classes/jogamp/graph/font/typecast/TypecastFont.java
index 382d35a73..b45e2c215 100644
--- a/src/jogl/classes/jogamp/graph/font/typecast/TypecastFont.java
+++ b/src/jogl/classes/jogamp/graph/font/typecast/TypecastFont.java
@@ -56,7 +56,7 @@ class TypecastFont implements Font {
     /* pp */ final TTFont font;
     private final CmapFormat cmapFormat;
     private final int cmapentries;
-    private final IntObjectHashMap char2Glyph;
+    private final IntObjectHashMap idToGlyph;
     private final TypecastHMetrics metrics;
     // FIXME: Add cache size to limit memory usage ??
 
@@ -147,7 +147,7 @@ class TypecastFont implements Font {
                 }
             }
         }
-        char2Glyph = new IntObjectHashMap(cmapentries + cmapentries/4);
+        idToGlyph = new IntObjectHashMap(cmapentries + cmapentries/4);
         metrics = new TypecastHMetrics(this);
     }
 
@@ -197,11 +197,9 @@ class TypecastFont implements Font {
     }
 
     @Override
-    public Glyph getGlyph(final char symbol) {
-        TypecastGlyph result = (TypecastGlyph) char2Glyph.get(symbol);
+    public Glyph getGlyph(final int glyph_id) {
+        TypecastGlyph result = (TypecastGlyph) idToGlyph.get(glyph_id);
         if (null == result) {
-            final int glyph_id = getGlyphID( symbol );
-
             jogamp.graph.font.typecast.ot.Glyph glyph = font.getGlyph(glyph_id);
             final int glyph_advance;
             final AABBox glyph_bbox;
@@ -222,9 +220,9 @@ class TypecastFont implements Font {
                     break;
             }
             if(null == glyph) {
-                throw new RuntimeException("Could not retrieve glyph for symbol: <"+symbol+"> "+(int)symbol+" -> glyph id "+glyph_id);
+                throw new RuntimeException("Could not retrieve glyph for glyph id "+glyph_id);
             }
-            final OutlineShape shape = TypecastRenderer.buildShape(metrics.getUnitsPerEM(), symbol, glyph, vertexFactory);
+            final OutlineShape shape = TypecastRenderer.buildShape(metrics.getUnitsPerEM(), glyph, vertexFactory);
             KernSubtable kernSub = null;
             {
                 final KernTable kern = font.getKernTable();
@@ -232,17 +230,17 @@ class TypecastFont implements Font {
                     kernSub = kern.getSubtable0();
                 }
             }
-            result = new TypecastGlyph(this, symbol, glyph_id, glyph_bbox, glyph_advance, kernSub, shape);
+            result = new TypecastGlyph(this, glyph_id, glyph_bbox, glyph_advance, kernSub, shape);
             if(DEBUG) {
                 final PostTable post = font.getPostTable();
                 final String glyph_name = null != post ? post.getGlyphName(glyph_id) : "n/a";
-                System.err.println("New glyph: " + (int)symbol + " ( " + symbol +" ) -> " + glyph_id + "/'"+glyph_name+"', contours " + glyph.getPointCount() + ": " + shape);
+                System.err.println("New glyph: " + glyph_id + "/'"+glyph_name+"', contours " + glyph.getPointCount() + ": " + shape);
                 System.err.println("  "+glyph);
                 System.err.println("  "+result);
             }
             glyph.clearPointData();
 
-            char2Glyph.put(symbol, result);
+            idToGlyph.put(glyph_id, result);
         }
         return result;
     }
@@ -276,7 +274,7 @@ class TypecastFont implements Font {
             if (character == '\n') {
                 width = 0;
             } else {
-                final Glyph glyph = getGlyph(character);
+                final Glyph glyph = getGlyph(getGlyphID(character));
                 width += glyph.getAdvanceFU();
             }
         }
@@ -295,7 +293,7 @@ class TypecastFont implements Font {
         for (int i=0; i<string.length(); i++) {
             final char character = string.charAt(i);
             if (character != ' ') {
-                final Glyph glyph = getGlyph(character);
+                final Glyph glyph = getGlyph(getGlyphID(character));
                 height = (int)Math.ceil(Math.max(glyph.getBBoxFU().getHeight(), height));
             }
         }
@@ -348,14 +346,17 @@ class TypecastFont implements Font {
 
         float y = 0;
         float advanceTotal = 0;
+        Font.Glyph left_glyph = null;
 
         for(int i=0; i< charCount; i++) {
             final char character = string.charAt(i);
             if( '\n' == character ) {
                 y -= lineHeight;
                 advanceTotal = 0;
+                left_glyph = null;
             } else if (character == ' ') {
                 advanceTotal += getAdvanceWidthFU(Glyph.ID_SPACE);
+                left_glyph = null;
             } else {
                 // reset transform
                 if( null != transform ) {
@@ -363,17 +364,19 @@ class TypecastFont implements Font {
                 } else {
                     temp1.setToIdentity();
                 }
-                temp1.translate(advanceTotal, y, temp2);
-                tbox.reset();
-
-                final Font.Glyph glyph = getGlyph(character);
-                res.resize(temp1.transform(glyph.getBBoxFU(), tbox));
-
-                final OutlineShape glyphShape = glyph.getShape();
-                if( null == glyphShape ) {
+                final int glyph_id = getGlyphID(character);
+                final Font.Glyph glyph = getGlyph(glyph_id);
+                if( null == glyph.getShape() ) {
+                    left_glyph = null;
                     continue;
                 }
+                if( null != left_glyph ) {
+                    advanceTotal += left_glyph.getKerningFU(glyph_id);
+                }
+                temp1.translate(advanceTotal, y, temp2);
+                res.resize(temp1.transform(glyph.getBBoxFU(), tbox));
                 advanceTotal += glyph.getAdvanceFU();
+                left_glyph = glyph;
             }
         }
         return res;
diff --git a/src/jogl/classes/jogamp/graph/font/typecast/TypecastGlyph.java b/src/jogl/classes/jogamp/graph/font/typecast/TypecastGlyph.java
index e6a655661..d8f46090b 100644
--- a/src/jogl/classes/jogamp/graph/font/typecast/TypecastGlyph.java
+++ b/src/jogl/classes/jogamp/graph/font/typecast/TypecastGlyph.java
@@ -104,7 +104,6 @@ public final class TypecastGlyph implements Font.Glyph {
         return dst;
     }
 
-    private final char symbol;
     private final int id;
     private final int[/*right_glyphid*/][/*value*/] kerning;
     private final boolean kerning_horizontal;
@@ -115,15 +114,13 @@ public final class TypecastGlyph implements Font.Glyph {
     /**
      *
      * @param font
-     * @param symbol
      * @param id
      * @param bbox in font-units
      * @param advance from hmtx in font-units
      * @param shape
      */
-    protected TypecastGlyph(final TypecastFont font, final char symbol, final int id, final AABBox bbox, final int advance,
+    protected TypecastGlyph(final TypecastFont font, final int id, final AABBox bbox, final int advance,
                             final KernSubtable kernSub, final OutlineShape shape) {
-        this.symbol = symbol;
         this.id = id;
         if( null != kernSub && kernSub.areKerningValues() ) {
             int pair_sz = 64;
@@ -160,11 +157,6 @@ public final class TypecastGlyph implements Font.Glyph {
         return this.metrics.getFont();
     }
 
-    @Override
-    public final char getSymbol() {
-        return this.symbol;
-    }
-
     public final Metrics getMetrics() {
         return this.metrics;
     }
diff --git a/src/jogl/classes/jogamp/graph/font/typecast/TypecastRenderer.java b/src/jogl/classes/jogamp/graph/font/typecast/TypecastRenderer.java
index 60319d842..8099a2ff7 100644
--- a/src/jogl/classes/jogamp/graph/font/typecast/TypecastRenderer.java
+++ b/src/jogl/classes/jogamp/graph/font/typecast/TypecastRenderer.java
@@ -75,7 +75,7 @@ public class TypecastRenderer {
         shape.addVertex(0, p3.x/unitsPerEM,  p3.y/unitsPerEM, p3.onCurve);
     } */
 
-    public static OutlineShape buildShape(final int unitsPerEM, final char symbol, final jogamp.graph.font.typecast.ot.Glyph glyph, final Factory<? extends Vertex> vertexFactory) {
+    public static OutlineShape buildShape(final int unitsPerEM, final jogamp.graph.font.typecast.ot.Glyph glyph, final Factory<? extends Vertex> vertexFactory) {
         //
         // See Typecast: GlyphPathFactory.addContourToPath(..)
         //
@@ -84,12 +84,12 @@ public class TypecastRenderer {
         }
 
         final OutlineShape shape = new OutlineShape(vertexFactory);
-        buildShapeImpl(unitsPerEM, shape, symbol, glyph);
+        buildShapeImpl(unitsPerEM, shape, glyph);
         shape.setIsQuadraticNurbs();
         return shape;
     }
 
-    private static void buildShapeImpl(final float unitsPerEM, final OutlineShape shape, final char symbol, final jogamp.graph.font.typecast.ot.Glyph glyph) {
+    private static void buildShapeImpl(final float unitsPerEM, final OutlineShape shape, final jogamp.graph.font.typecast.ot.Glyph glyph) {
         // Iterate through all of the points in the glyph.  Each time we find a
         // contour end point, add the point range to the path.
         int startIndex = 0;
@@ -105,7 +105,7 @@ public class TypecastRenderer {
                     final Point p2 = glyph.getPoint(startIndex + (offset+2)%count);
                     final Point p3 = offset+3 < count ? glyph.getPoint(startIndex + offset+3) : null;
                     if( DEBUG  ) {
-                        System.err.println("GlyphShape<"+symbol+">: offset "+offset+" of "+count+"/"+totalPoints+" points");
+                        System.err.println("GlyphShape<"+glyph.getGlyphIndex()+">: offset "+offset+" of "+count+"/"+totalPoints+" points");
                         final int pMIdx= (offset==0) ? startIndex+count-1 : startIndex+(offset-1)%count;
                         final Point pM = glyph.getPoint(pMIdx);
                         final int p0Idx = startIndex + offset%count;
-- 
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