line profile is now cached by being a member of Painter, as was suggested by Maxim, it's too heavy an object for being created on the fly

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@10905 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/servers/app/Painter.h

@@ -184,6 +184,7 @@ class Painter {
 			void				_RebuildClipping();
 
 			void				_UpdateFont();
+			void				_UpdateLineWidth();
 
 								// drawing functions stroke/fill
 			void				_DrawTriangle(	BPoint pt1,
@@ -229,6 +230,8 @@ class Painter {
 	font_renderer_solid_type*	fFontRendererSolid;
 	font_renderer_bin_type*		fFontRendererBin;
 
+	agg::line_profile_aa		fLineProfile;
+
 	// for internal coordinate rounding/transformation,
 	// does not concern rendering
 	bool						fSubpixelPrecise;

src/servers/app/server/Painter/Painter.cpp

@@ -44,6 +44,7 @@ Painter::Painter()
 	  fRenderer(NULL),
 	  fFontRendererSolid(NULL),
 	  fFontRendererBin(NULL),
+	  fLineProfile(),
 	  fSubpixelPrecise(false),
 	  fScale(1.0),
 	  fPenSize(1.0),
@@ -56,6 +57,7 @@ Painter::Painter()
 	  fTextRenderer(new AGGTextRenderer())
 {
 	_UpdateFont();
+	_UpdateLineWidth();
 }
 
 // destructor
@@ -114,6 +116,8 @@ rgb_color color = fPatternHandler->HighColor().GetColor32();
 
 		fOutlineRasterizer = new outline_rasterizer_type(*fOutlineRenderer);
 #endif
+		// attach our line profile to the renderer, it keeps a pointer
+		fOutlineRenderer->profile(fLineProfile);
 
 		// the renderer used for filling paths
 		fRenderer = new renderer_type(*fBaseRenderer);
@@ -133,7 +137,6 @@ rgb_color color = fPatternHandler->HighColor().GetColor32();
 
 		fFontRendererBin = new font_renderer_bin_type(*fBaseRenderer);
 
-
 		_RebuildClipping();
 	}
 }
@@ -206,6 +209,7 @@ Painter::SetScale(float scale)
 {
 	fScale = scale;
 	_RebuildClipping();
+	_UpdateLineWidth();
 }
 
 // SetPenSize
@@ -213,6 +217,7 @@ void
 Painter::SetPenSize(float size)
 {
 	fPenSize = size;
+	_UpdateLineWidth();
 }
 
 // SetOrigin
@@ -809,6 +814,16 @@ Painter::_UpdateFont()
 	fTextRenderer->SetPointSize(fFont.Size());
 }
 
+// _UpdateLineWidth
+void
+Painter::_UpdateLineWidth()
+{
+	float width = fPenSize;
+	_Transform(&width);
+
+	fLineProfile.width(width);	
+}
+
 // #pragma mark -
 
 // _DrawTriangle
@@ -920,12 +935,12 @@ Painter::_StrokePath(VertexSource& path, const pattern& p) const
 {
 	fPatternHandler->SetPattern(p);
 
-	float width = fPenSize;
-	_Transform(&width);
-
 #if ALIASED_DRAWING
 	if (width > 1.0) {
 		agg::conv_stroke<VertexSource> stroke(path);
+
+		float width = fPenSize;
+		_Transform(&width);
 		stroke.width(width);
 
 		fRasterizer->add_path(stroke);
@@ -934,9 +949,6 @@ Painter::_StrokePath(VertexSource& path, const pattern& p) const
 		fOutlineRasterizer->add_path(path);
 	}
 #else
-	agg::line_profile_aa prof;
-       prof.width(width);
-	fOutlineRenderer->profile(prof);
 	fOutlineRasterizer->add_path(path);
 #endif
 }