added escapement_delta to AGGTextRenderer::RenderString and Painter

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14095 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/servers/app/drawing/DisplayDriverPainter.cpp

@@ -1093,7 +1093,7 @@ DisplayDriverPainter::DrawString(const char* string, int32 length,
 // TODO: make the availability of the hardware cursor part of the 
 // HW acceleration flags and skip all calculations for HideSoftwareCursor
 // in case we don't have one.
-		BRect b = fPainter->BoundingBox(string, length, pt);
+		BRect b = fPainter->BoundingBox(string, length, pt, delta);
 		// stop here if we're supposed to render outside of the clipping
 		b = fPainter->ClipRect(b);
 		if (b.IsValid()) {

src/servers/app/drawing/Painter/Painter.cpp

@@ -899,7 +899,8 @@ Painter::DrawString(const char* utf8String, uint32 length,
 											 baseLine,
 											 fClippingRegion->Frame(),
 											 false,
-											 &fPenLocation);
+											 &fPenLocation, 
+											 delta);
 	}
 	return _Clipped(bounds);
 }
@@ -985,14 +986,16 @@ Painter::InvertRect(const BRect& r) const
 // BoundingBox
 BRect
 Painter::BoundingBox(const char* utf8String, uint32 length,
-					 const BPoint& baseLine) const
+	const BPoint& baseLine, const escapement_delta* delta) const
 {
 	static BRect dummy;
+	BPoint penPosition;
 	return fTextRenderer->RenderString(utf8String,
 									   length,
 									   fFontRendererSolid,
 									   fFontRendererBin,
-									   baseLine, dummy, true);
+									   baseLine, dummy, true, &penPosition,
+									   delta);
 }
 
 // StringWidth

src/servers/app/drawing/Painter/Painter.h

@@ -204,9 +204,8 @@ class Painter {
 
 			BRect				InvertRect(		const BRect& r) const;
 
-			BRect				BoundingBox(	const char* utf8String,
+			BRect				BoundingBox(	const char* utf8String, uint32 length,
-												uint32 length,
+									const BPoint& baseLine, const escapement_delta* delta = NULL) const;
-												const BPoint& baseLine) const;
 
 			float				StringWidth(	const char* utf8String,
 												uint32 length) const;

src/servers/app/drawing/Painter/font_support/AGGTextRenderer.cpp

@@ -41,6 +41,17 @@ rect_to_int(BRect r,
 	bottom = (int32)ceilf(r.bottom);
 }
 
+
+// is_white_space
+inline bool
+is_white_space(uint16 glyph)
+{
+	// TODO: handle them all!
+	if (glyph == ' ' || glyph == B_TAB)
+		return true;
+	return false;
+}
+
 #define DEFAULT_UNI_CODE_BUFFER_SIZE	2048
 
 // constructor
@@ -150,7 +161,8 @@ AGGTextRenderer::RenderString(const char* string,
 							  const BPoint& baseLine,
 							  const BRect& clippingFrame,
 							  bool dryRun,
-							  BPoint* nextCharPos)
+							  BPoint* nextCharPos,
+							  const escapement_delta* delta)
 {
 //printf("RenderString(\"%s\", length: %ld, dry: %d)\n", string, length, dryRun);
 
@@ -210,6 +222,9 @@ AGGTextRenderer::RenderString(const char* string,
 				x += advanceX;
 				y += advanceY;
 
+				if (delta)
+					x += is_white_space(*p) ? delta->space : delta->nonspace;
+
 				// "glyphBounds" is the bounds of the glyph transformed
 				// by the x y location of the glyph along the base line,
 				// it is therefor yet "untransformed".

src/servers/app/drawing/Painter/font_support/AGGTextRenderer.h

@@ -41,7 +41,8 @@ class AGGTextRenderer {
 											 const BPoint& baseLine,
 											 const BRect& clippingFrame,
 											 bool dryRun = false,
-											 BPoint* nextCharPos = NULL);
+											 BPoint* nextCharPos = NULL,
+											 const escapement_delta* delta = NULL);
 
 			double				StringWidth(const char* utf8String,
 											uint32 length);