BPicture: add gradient support

Fixes #9680.

Change-Id: I0013326559cc40ff26cf7b44794c0b32aea832ba
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2829
Reviewed-by: Stephan Aßmus <[email protected]>

headers/private/interface/PictureDataWriter.h

@@ -20,6 +20,7 @@
 
 
 class Layer;
+class BGradient;
 class BPositionIO;
 class BRegion;
 
@@ -91,6 +92,24 @@ public:
 			status_t			WriteDrawShape(const int32& opCount,
 									const void* opList, const int32& ptCount,
 									const void* ptList, const bool& fill);
+			status_t			WriteDrawRectGradient(const BRect& rect, const BGradient& gradient,
+									const bool& fill);
+			status_t			WriteDrawRoundRectGradient(const BRect& rect,
+									const BPoint& radius, const BGradient& gradient, const bool& fill);
+			status_t			WriteDrawBezierGradient(const BPoint points[4], const BGradient& gradient,
+									const bool& fill);
+			status_t			WriteDrawArcGradient(const BPoint& center,
+									const BPoint& radius,
+									const float& startTheta,
+									const float& arcTheta, const BGradient& gradient, const bool& fill);
+			status_t			WriteDrawEllipseGradient(const BRect& rect, const BGradient& gradient,
+									const bool& fill);
+			status_t			WriteDrawPolygonGradient(const int32& numPoints,
+									BPoint* points, const bool& isClosed, const BGradient& gradient,
+									const bool& fill);
+			status_t			WriteDrawShapeGradient(const int32& opCount,
+									const void* opList, const int32& ptCount,
+									const void* ptList, const BGradient& gradient, const bool& fill);
 			status_t			WriteDrawBitmap(const BRect& srcRect,
 									const BRect& dstRect, const int32& width,
 									const int32& height,

headers/private/interface/PicturePlayer.h

@@ -21,6 +21,7 @@
 
 
 class BAffineTransform;
+class BGradient;
 class BList;
 class BPicture;
 class BShape;
@@ -94,6 +95,13 @@ struct picture_player_callbacks {
 		int32 ptCount, const BPoint ptList[], bool inverse);
 	void (*draw_string_locations)(void* userData, const char* string,
 		size_t length, const BPoint locations[], size_t locationCount);
+	void (*draw_rect_gradient)(void* userData, const BRect& rect, BGradient& gradient, bool fill);
+	void (*draw_round_rect_gradient)(void* userData, const BRect& rect, const BPoint& radii, BGradient& gradient, bool fill);
+	void (*draw_bezier_gradient)(void* userData, size_t numControlPoints, const BPoint controlPoints[], BGradient& gradient, bool fill);
+	void (*draw_arc_gradient)(void* userData, const BPoint& center, const BPoint& radii, float startTheta, float arcTheta, BGradient& gradient, bool fill);
+	void (*draw_ellipse_gradient)(void* userData, const BRect& rect, BGradient& gradient, bool fill);
+	void (*draw_polygon_gradient)(void* userData, size_t numPoints, const BPoint points[], bool isClosed, BGradient& gradient, bool fill);
+	void (*draw_shape_gradient)(void* userData, const BShape& shape, BGradient& gradient, bool fill);
 };
 
 

headers/private/interface/PictureProtocol.h

@@ -23,6 +23,20 @@ enum {
 	B_PIC_STROKE_ELLIPSE		= 0x0115,
 	B_PIC_FILL_ELLIPSE			= 0x0116,
 	B_PIC_DRAW_STRING_LOCATIONS	= 0x0117,
+	B_PIC_STROKE_RECT_GRADIENT	= 0x0118,
+	B_PIC_FILL_RECT_GRADIENT	= 0x0119,
+	B_PIC_STROKE_ROUND_RECT_GRADIENT = 0x011A,
+	B_PIC_FILL_ROUND_RECT_GRADIENT = 0x011B,
+	B_PIC_STROKE_BEZIER_GRADIENT = 0x011C,
+	B_PIC_FILL_BEZIER_GRADIENT	= 0x011D,
+	B_PIC_STROKE_POLYGON_GRADIENT = 0x011E,
+	B_PIC_FILL_POLYGON_GRADIENT	= 0x011F,
+	B_PIC_STROKE_SHAPE_GRADIENT	= 0x0120,
+	B_PIC_FILL_SHAPE_GRADIENT	= 0x0121,
+	B_PIC_STROKE_ARC_GRADIENT	= 0x0122,
+	B_PIC_FILL_ARC_GRADIENT		= 0x0123,
+	B_PIC_STROKE_ELLIPSE_GRADIENT = 0x0124,
+	B_PIC_FILL_ELLIPSE_GRADIENT	= 0x0125,
 
 	B_PIC_ENTER_STATE_CHANGE	= 0x0200,
 	B_PIC_SET_CLIPPING_RECTS	= 0x0201,
@@ -62,7 +76,7 @@ enum {
 };
 
 
-const static uint32 kOpsTableSize = 51;
+const static uint32 kOpsTableSize = 70;
 
 
 #endif