OSX use font cache based glyph rect cache

Change-Id: Ia9bf718f1158c68971511688fe5af3e335d841ba
Reviewed-on: https://gerrit.libreoffice.org/61386
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

vcl/inc/quartz/salgdi.h

@@ -85,7 +85,7 @@ public:
     ~CoreTextStyle() override;
 
     void       GetFontMetric( ImplFontMetricDataRef const & );
-    bool       GetGlyphBoundRect(const GlyphItem&, tools::Rectangle&) const;
+    bool       GetGlyphBoundRect(const GlyphItem&, tools::Rectangle&);
     bool       GetGlyphOutline(const GlyphItem&, basegfx::B2DPolyPolygon&) const;
 
     CFMutableDictionaryRef  GetStyleDict( void ) const { return mpStyleDict; }

vcl/quartz/ctfonts.cxx

@@ -137,8 +137,11 @@ void CoreTextStyle::GetFontMetric( ImplFontMetricDataRef const & rxFontMetric )
     rxFontMetric->SetMinKashida(GetKashidaWidth());
 }
 
-bool CoreTextStyle::GetGlyphBoundRect(const GlyphItem& rGlyph, tools::Rectangle& rRect ) const
+bool CoreTextStyle::GetGlyphBoundRect(const GlyphItem& rGlyph, tools::Rectangle& rRect )
 {
+    if (GetCachedGlyphBoundRect(rGlyph.maGlyphId, rRect))
+        return true;
+
     CGGlyph nCGGlyph = rGlyph.maGlyphId;
     CTFontRef aCTFontRef = static_cast<CTFontRef>(CFDictionaryGetValue( mpStyleDict, kCTFontAttributeName ));
 
@@ -156,6 +159,7 @@ bool CoreTextStyle::GetGlyphBoundRect(const GlyphItem& rGlyph, tools::Rectangle&
     long xMax = ceil(aCGRect.origin.x + aCGRect.size.width);
     long yMax = ceil(aCGRect.origin.y + aCGRect.size.height);
     rRect = tools::Rectangle(xMin, -yMax, xMax, -yMin);
+    CacheGlyphBoundRect(rGlyph.maGlyphId, rRect);
     return true;
 }