More fully debugged tokenized rendering of strings and turned it on by

default. Can be disabled by specifying -Djogl.TextRenderer.nosplit.
Exposed getSpaceWidth() on request of emzic on javagaming.org forums.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@1195 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 19 insertions, 13 deletions

diff --git a/src/classes/com/sun/opengl/util/j2d/TextRenderer.java b/src/classes/com/sun/opengl/util/j2d/TextRenderer.java
index 468590b7d..ca4617abb 100755
--- a/src/classes/com/sun/opengl/util/j2d/TextRenderer.java
+++ b/src/classes/com/sun/opengl/util/j2d/TextRenderer.java
@@ -129,7 +129,7 @@ public class TextRenderer {
   // producing identical (or even vaguely similar) rendering results;
   // may ultimately yield more efficient use of the backing store, but
   // also seems to have performance issues due to rendering more quads
-  private boolean splitAtSpaces;
+  private boolean splitAtSpaces = !Debug.isPropertyDefined("jogl.TextRenderer.nosplit");
   private int spaceWidth = -1;
   private List/*<String>*/ tokenizationResults = new ArrayList/*<String>*/();
 
@@ -545,7 +545,7 @@ public class TextRenderer {
         data.markUsed();
 
         // Align the leftmost point of the baseline to the (x, y, z) coordinate requested
-        renderer.draw3DRect(x - scaleFactor * (data.origin().x + xOffset),
+        renderer.draw3DRect(x + xOffset - scaleFactor * data.origin().x,
                             y - scaleFactor * ((rect.h() - data.origin().y)),
                             z,
                             rect.x(),
@@ -569,6 +569,23 @@ public class TextRenderer {
     endRendering(true);
   }
 
+  /** Returns the width of the ASCII space character, in pixels, drawn
+      in this TextRenderer's font when no scaling or rotation has been
+      applied. This is the horizontal advance of the space character.
+
+      @return the width of the space character in the TextRenderer's font
+  */
+  public int getSpaceWidth() {
+    if (spaceWidth < 0) {
+      Graphics2D g = getGraphics2D();
+      FontRenderContext frc = getFontRenderContext();
+      GlyphVector gv = font.createGlyphVector(frc, " ");
+      GlyphMetrics metrics = gv.getGlyphMetrics(0);
+      spaceWidth = (int) metrics.getAdvanceX();
+    }
+    return spaceWidth;
+  }
+
   /** Ends a 3D render cycle with this {@link TextRenderer TextRenderer}.
       Restores several OpenGL state bits. Should be paired with {@link
       #begin3DRendering begin3DRendering}.
@@ -702,17 +719,6 @@ public class TextRenderer {
     }
   }
 
-  private int getSpaceWidth() {
-    if (spaceWidth < 0) {
-      Graphics2D g = getGraphics2D();
-      FontRenderContext frc = getFontRenderContext();
-      GlyphVector gv = font.createGlyphVector(frc, " ");
-      Rectangle2D bbox = gv.getLogicalBounds();
-      spaceWidth = (int) bbox.getWidth();
-    }
-    return spaceWidth;
-  }
-
   private void tokenize(String str) {
     // Avoid lots of little allocations per render
     tokenizationResults.clear();