Patch by Artur Wyszynski:

* Implemented BGradient, BGradientLinear, BGradientRadial,
  BGradientDiamond, BGradientConic and BGradientRadialFocus
  new Interface Kit classes.
* Implemented all the (AGG-based) backend necessary in
  the app_server to render gradients (Painter, DrawingEngine)
* app_server/View can convert a BGradient layout to screen
  coordinates.
* Added BGradient methods of the Fill* methods in BView.
* Implemented a test app and added it to the image as a
  demo.
* Adopted Icon-O-Matic and libs/icon in order to avoid
  clashing with the new BGradient class. Re-use some
  parts where possible.

Awesome work, Artur! Thanks a lot. Now a more modern
looking GUI has just become much easier to implement! :-)

TODO:
* Remove the need to have gradient type twice in the
  app_server protocol.
* Refactor some parts of the patch to remove duplicated
  code (Painter, DrawingEngine).
* Adopt the BPicture protocol to know about BGradients.
* Review some parts of the BArchivable implementation.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28109 a95241bf-73f2-0310-859d-f6bbb57e9c96

build/jam/HaikuImage

@@ -66,7 +66,7 @@ BEOS_PREFERENCES = Appearance Backgrounds DataTranslations E-mail
 ;
 BEOS_DEMOS = BSnow Chart Clock $(X86_ONLY)Cortex FontDemo
 	$(X86_ONLY)GLDirectMode $(X86_ONLY)GLTeapot Mandelbrot Pairs
-	Playground Pulse Sudoku
+	Playground Pulse Sudoku Gradients
 ;
 BEOS_SYSTEM_LIBS = libbe.so $(HAIKU_LIBSTDC++) libmedia.so libtracker.so
 	libtranslation.so libbnetapi.so libnetwork.so libdebug.so libbsd.so

headers/build/private/app/PortLink.h

@@ -50,6 +50,7 @@ class ServerLink {
 		status_t AttachString(const char *string, int32 length = -1);
 		status_t AttachRegion(const BRegion &region);
 		status_t AttachShape(BShape &shape);
+		status_t AttachGradient(const BGradient &gradient);
 		template <class Type> status_t Attach(const Type& data);
 
 		// receive methods
@@ -63,6 +64,7 @@ class ServerLink {
 		status_t ReadString(char **string);
 		status_t ReadRegion(BRegion *region);
 		status_t ReadShape(BShape *shape);
+		status_t ReadGradient(BGradient *gradient);
 		template <class Type> status_t Read(Type *data);
 
 		// convenience methods

headers/build/private/app/ServerProtocol.h

@@ -219,14 +219,23 @@ enum {
 	AS_STROKE_TRIANGLE,
 
 	AS_FILL_ARC,
+	AS_FILL_ARC_GRADIENT,
 	AS_FILL_BEZIER,
+	AS_FILL_BEZIER_GRADIENT,
 	AS_FILL_ELLIPSE,
+	AS_FILL_ELLIPSE_GRADIENT,
 	AS_FILL_POLYGON,
+	AS_FILL_POLYGON_GRADIENT,
 	AS_FILL_RECT,
+	AS_FILL_RECT_GRADIENT,
 	AS_FILL_REGION,
+	AS_FILL_REGION_GRADIENT,
 	AS_FILL_ROUNDRECT,
+	AS_FILL_ROUNDRECT_GRADIENT,
 	AS_FILL_SHAPE,
+	AS_FILL_SHAPE_GRADIENT,
 	AS_FILL_TRIANGLE,
+	AS_FILL_TRIANGLE_GRADIENT,
 
 	AS_MOVEPENBY,
 	AS_MOVEPENTO,

headers/os/interface/Gradient.h

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Stephan Aßmus <[email protected]>
+ *		Artur Wyszynski <[email protected]>
+ */
+
+#ifndef GRADIENT_H
+#define GRADIENT_H
+
+#include <Archivable.h>
+#include <GraphicsDefs.h>
+#include <List.h>
+
+
+class BMessage;
+class BRect;
+
+
+enum gradient_type {
+	B_GRADIENT_LINEAR = 0,
+	B_GRADIENT_RADIAL,
+	B_GRADIENT_RADIAL_FOCUS,
+	B_GRADIENT_DIAMOND,
+	B_GRADIENT_CONIC,
+	B_GRADIENT_NONE
+};
+
+
+struct color_step {
+	color_step(const rgb_color c, float o);
+	color_step(uint8 r, uint8 g, uint8 b, uint8 a, float o);
+	color_step(const color_step& other);
+	color_step();
+	
+	bool operator!=(const color_step& other) const;
+	
+	rgb_color		color;
+	float			offset;
+};
+
+
+class BGradient : public BArchivable {
+public:
+						BGradient();
+						BGradient(BMessage* archive);
+	virtual				~BGradient();
+	
+	status_t			Archive(BMessage* into, bool deep = true) const;
+	
+	BGradient&			operator=(const BGradient& other);
+	
+	bool				operator==(const BGradient& other) const;
+	bool				operator!=(const BGradient& other) const;
+	bool				ColorStepsAreEqual(const BGradient& other) const;
+	
+	void				SetColors(const BGradient& other);
+	
+	int32				AddColor(const rgb_color& color, float offset);
+	bool				AddColor(const color_step& color, int32 index);
+	
+	bool				RemoveColor(int32 index);
+	
+	bool				SetColor(int32 index, const color_step& step);
+	bool				SetColor(int32 index, const rgb_color& color);
+	bool				SetOffset(int32 index, float offset);
+	
+	int32				CountColors() const;
+	color_step*			ColorAt(int32 index) const;
+	color_step*			ColorAtFast(int32 index) const;
+	color_step*			Colors() const;
+	void				SortColorStepsByOffset();
+	
+	gradient_type		Type() const
+							{ return fType; }
+	
+	void				MakeEmpty();
+	
+private:
+	friend class BGradientLinear;
+	friend class BGradientRadial;
+	friend class BGradientRadialFocus;
+	friend class BGradientDiamond;
+	friend class BGradientConic;
+
+	union {
+		struct {
+			float x1, y1, x2, y2;
+		} linear;
+		struct {
+			float cx, cy, radius;
+		} radial;
+		struct {
+			float cx, cy, fx, fy, radius;
+		} radial_focus;
+		struct {
+			float cx, cy;
+		} diamond;
+		struct {
+			float cx, cy, angle;
+		} conic;
+	} fData;
+
+	BList				fColors;
+	gradient_type		fType;
+};
+
+#endif // GRADIENT_H

headers/os/interface/GradientConic.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <[email protected]>
+ */
+
+#ifndef GRADIENT_CONIC_H
+#define GRADIENT_CONIC_H
+
+#include <Gradient.h>
+
+class BPoint;
+
+class BGradientConic : public BGradient {
+public:
+	BGradientConic();
+	BGradientConic(const BPoint& center, float angle);
+	BGradientConic(float cx, float cy, float angle);
+	
+	BPoint Center() const;
+	void SetCenter(const BPoint& center);
+	void SetCenter(float cx, float cy);
+
+	float Angle() const;
+	void SetAngle(float angle);
+};
+
+#endif // GRADIENT_CONIC_H

headers/os/interface/GradientDiamond.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <[email protected]>
+ */
+
+#ifndef GRADIENT_DIAMOND_H
+#define GRADIENT_DIAMOND_H
+
+#include <Gradient.h>
+
+class BPoint;
+
+class BGradientDiamond : public BGradient {
+public:
+	BGradientDiamond();
+	BGradientDiamond(const BPoint& center);
+	BGradientDiamond(float cx, float cy);
+	
+	BPoint Center() const;
+	void SetCenter(const BPoint& center);
+	void SetCenter(float cx, float cy);
+};
+
+#endif // GRADIENT_DIAMOND_H

headers/os/interface/GradientLinear.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <[email protected]>
+ */
+
+#ifndef GRADIENT_LINEAR_H
+#define GRADIENT_LINEAR_H
+
+#include <Gradient.h>
+
+class BPoint;
+
+class BGradientLinear : public BGradient {
+public:
+	BGradientLinear();
+	BGradientLinear(const BPoint& start, const BPoint& end);
+	BGradientLinear(float x1, float y1, float x2, float y2);
+	
+	BPoint Start() const;
+	void SetStart(const BPoint& start);
+	void SetStart(float x1, float y1);
+	
+	BPoint End() const;
+	void SetEnd(const BPoint& end);
+	void SetEnd(float x2, float y2);
+};
+
+#endif // GRADIENT_LINEAR_H

headers/os/interface/GradientRadial.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <[email protected]>
+ */
+
+#ifndef GRADIENT_RADIAL_H
+#define GRADIENT_RADIAL_H
+
+#include <Gradient.h>
+
+class BPoint;
+
+class BGradientRadial : public BGradient {
+public:
+	BGradientRadial();
+	BGradientRadial(const BPoint& center, float radius);
+	BGradientRadial(float cx, float cy, float radius);
+	
+	BPoint Center() const;
+	void SetCenter(const BPoint& center);
+	void SetCenter(float cx, float cy);
+	
+	float Radius() const;
+	void SetRadius(float radius);
+};
+
+#endif // GRADIENT_RADIAL_H

headers/os/interface/GradientRadialFocus.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <[email protected]>
+ */
+
+#ifndef GRADIENT_RADIAL_FOCUS_H
+#define GRADIENT_RADIAL_FOCUS_H
+
+#include <Gradient.h>
+
+class BPoint;
+
+class BGradientRadialFocus : public BGradient {
+public:
+	BGradientRadialFocus();
+	BGradientRadialFocus(const BPoint& center, float radius,
+		const BPoint& focal);
+	BGradientRadialFocus(float cx, float cy, float radius, float fx, float fy);
+	
+	BPoint Center() const;
+	void SetCenter(const BPoint& center);
+	void SetCenter(float cx, float cy);
+	
+	BPoint Focal() const;
+	void SetFocal(const BPoint& focal);
+	void SetFocal(float fx, float fy);
+	
+	float Radius() const;
+	void SetRadius(float radius);
+};
+
+#endif // GRADIENT_RADIAL_FOCUS_H

headers/os/interface/View.h

@@ -16,6 +16,7 @@
 #include <InterfaceDefs.h>
 #include <Rect.h>
 #include <Size.h>
+#include <Gradient.h>
 
 
 // mouse button
@@ -317,7 +318,13 @@ public:
 								pattern p = B_SOLID_HIGH);
 			void			FillPolygon(const BPoint* ptArray, int32 numPts,
 								BRect bounds, pattern p = B_SOLID_HIGH);
-
+			void			FillPolygon(const BPolygon* polygon,
+								const BGradient& gradient);
+			void			FillPolygon(const BPoint* ptArray, int32 numPts,
+								const BGradient& gradient);
+			void			FillPolygon(const BPoint* ptArray, int32 numPts,
+								BRect bounds, const BGradient& gradient);
+	
 			void			StrokeTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
 								BRect bounds, pattern p = B_SOLID_HIGH);
 			void			StrokeTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
@@ -326,17 +333,26 @@ public:
 								pattern p = B_SOLID_HIGH);
 			void			FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
 								BRect bounds, pattern p = B_SOLID_HIGH);
+			void			FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
+								const BGradient& gradient);
+			void			FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
+								BRect bounds, const BGradient& gradient);
 
 			void			StrokeRect(BRect r, pattern p = B_SOLID_HIGH);
 			void			FillRect(BRect r, pattern p = B_SOLID_HIGH);
+			void			FillRect(BRect r, const BGradient& gradient);
 			void			FillRegion(BRegion* region,
 								pattern p = B_SOLID_HIGH);
+			void			FillRegion(BRegion* region,
+							   const BGradient& gradient);
 			void			InvertRect(BRect r);
 
 			void			StrokeRoundRect(BRect r, float xRadius,
 								float yRadius, pattern p = B_SOLID_HIGH);
 			void			FillRoundRect(BRect r, float xRadius, float yRadius,
 								pattern p = B_SOLID_HIGH);
+			void			FillRoundRect(BRect r, float xRadius, float yRadius,
+								const BGradient& gradient);
 
 			void			StrokeEllipse(BPoint center, float xRadius,
 								float yRadius, pattern p = B_SOLID_HIGH);
@@ -344,7 +360,10 @@ public:
 			void			FillEllipse(BPoint center, float xRadius,
 								float yRadius, pattern p = B_SOLID_HIGH);
 			void			FillEllipse(BRect r, pattern p = B_SOLID_HIGH);
-
+			void			FillEllipse(BPoint center, float xRadius,
+								float yRadius, const BGradient& gradient);
+			void			FillEllipse(BRect r, const BGradient& gradient);
+	
 			void			StrokeArc(BPoint center, float xRadius,
 								float yRadius, float startAngle, float arcAngle,
 								pattern p = B_SOLID_HIGH);
@@ -355,15 +374,23 @@ public:
 								pattern p = B_SOLID_HIGH);
 			void			FillArc(BRect r, float startAngle, float arcAngle,
 								pattern p = B_SOLID_HIGH);
-
+			void			FillArc(BPoint center, float xRadius, float yRadius,
+								float startAngle, float arcAngle,
+								const BGradient& gradient);
+			void			FillArc(BRect r, float startAngle, float arcAngle,
+								const BGradient& gradient);
+	
 			void			StrokeBezier(BPoint* controlPoints,
 								pattern p = B_SOLID_HIGH);
 			void			FillBezier(BPoint* controlPoints,
 								pattern p = B_SOLID_HIGH);
+			void			FillBezier(BPoint* controlPoints,
+							   const BGradient& gradient);
 	
 			void			StrokeShape(BShape* shape,
 								pattern p = B_SOLID_HIGH);
 			void			FillShape(BShape* shape, pattern p = B_SOLID_HIGH);
+			void			FillShape(BShape* shape, const BGradient& gradient);
 
 			void			CopyBits(BRect src, BRect dst);
 

headers/private/app/LinkReceiver.h

@@ -15,6 +15,7 @@
 
 class BString;
 class BRegion;
+class BGradient;
 
 
 namespace BPrivate {
@@ -37,6 +38,7 @@ class LinkReceiver {
 		status_t ReadString(BString& string, size_t* _length = NULL);
 		status_t ReadString(char* buffer, size_t bufferSize);
 		status_t ReadRegion(BRegion* region);
+		status_t ReadGradient(BGradient *gradient);
 
 		template <class Type> status_t Read(Type *data)
 			{ return Read(data, sizeof(Type)); }

headers/private/app/ServerLink.h

@@ -17,6 +17,7 @@
 
 class BShape;
 class BString;
+class BGradient;
 
 /*
  * Error checking rules: (for if you don't want to check every return code)
@@ -49,6 +50,7 @@ class ServerLink {
 		status_t AttachString(const char *string, int32 length = -1);
 		status_t AttachRegion(const BRegion &region);
 		status_t AttachShape(BShape &shape);
+		status_t AttachGradient(const BGradient &gradient);
 		template <class Type> status_t Attach(const Type& data);
 
 		// receive methods
@@ -64,6 +66,7 @@ class ServerLink {
 		status_t ReadString(char** _string, size_t* _length = NULL);
 		status_t ReadRegion(BRegion *region);
 		status_t ReadShape(BShape *shape);
+		status_t ReadGradient(BGradient *gradient);
 		template <class Type> status_t Read(Type *data);
 
 		// convenience methods

headers/private/app/ServerProtocol.h

@@ -218,14 +218,23 @@ enum {
 	AS_STROKE_TRIANGLE,
 
 	AS_FILL_ARC,
+	AS_FILL_ARC_GRADIENT,
 	AS_FILL_BEZIER,
+	AS_FILL_BEZIER_GRADIENT,
 	AS_FILL_ELLIPSE,
+	AS_FILL_ELLIPSE_GRADIENT,
 	AS_FILL_POLYGON,
+	AS_FILL_POLYGON_GRADIENT,
 	AS_FILL_RECT,
+	AS_FILL_RECT_GRADIENT,
 	AS_FILL_REGION,
+	AS_FILL_REGION_GRADIENT,
 	AS_FILL_ROUNDRECT,
+	AS_FILL_ROUNDRECT_GRADIENT,
 	AS_FILL_SHAPE,
+	AS_FILL_SHAPE_GRADIENT,
 	AS_FILL_TRIANGLE,
+	AS_FILL_TRIANGLE_GRADIENT,
 
 	AS_DRAW_STRING,
 	AS_DRAW_STRING_WITH_DELTA,

src/apps/Jamfile

@@ -18,6 +18,7 @@ SubInclude HAIKU_TOP src apps drivesetup ;
 SubInclude HAIKU_TOP src apps expander ;
 SubInclude HAIKU_TOP src apps fontdemo ;
 SubInclude HAIKU_TOP src apps glteapot ;
+SubInclude HAIKU_TOP src apps gradients ;
 SubInclude HAIKU_TOP src apps icon-o-matic ;
 SubInclude HAIKU_TOP src apps installedpackages ;
 SubInclude HAIKU_TOP src apps installer ;

src/apps/gradients/Gradients.cpp

@@ -0,0 +1,445 @@
+/*
+ * Copyright (c) 2008, Haiku, Inc.
+ * Distributed under the terms of the MIT license.
+ *
+ * Authors:
+ *		Artur Wyszynski <harakash@gmail.com>
+ */
+
+#include <Application.h>
+#include <GradientLinear.h>
+#include <GradientRadial.h>
+#include <GradientRadialFocus.h>
+#include <GradientDiamond.h>
+#include <GradientConic.h>
+#include <View.h>
+#include <Screen.h>
+#include <Window.h>
+#include <MenuField.h>
+#include <MenuItem.h>
+#include <PopUpMenu.h>
+
+
+#define MSG_LINEAR			'gtli'
+#define MSG_RADIAL			'gtra'
+#define MSG_RADIAL_FOCUS	'gtrf'
+#define MSG_DIAMOND			'gtdi'
+#define MSG_CONIC			'gtco'
+
+class GradientsApp : public BApplication {
+public:
+							GradientsApp(void);
+};
+
+
+class GradientsView : public BView {
+public:
+							GradientsView(const BRect &r);
+	virtual					~GradientsView(void);
+	
+	virtual void			Draw(BRect update);
+			void			DrawLinear(BRect update);
+			void			DrawRadial(BRect update);
+			void			DrawRadialFocus(BRect update);
+			void			DrawDiamond(BRect update);
+			void			DrawConic(BRect update);
+			void			SetType(gradient_type type);
+	
+private:
+			gradient_type	fType;
+};
+
+
+class GradientsWindow : public BWindow {
+public:
+							GradientsWindow(void);
+
+			bool			QuitRequested(void);
+	virtual	void			MessageReceived(BMessage *msg);
+
+private:
+			BPopUpMenu*		fGradientsMenu;
+			BMenuItem*		fLinearItem;
+			BMenuItem*		fRadialItem;
+			BMenuItem*		fRadialFocusItem;
+			BMenuItem*		fDiamondItem;
+			BMenuItem*		fConicItem;
+			BMenuField*		fGradientsTypeField;
+			GradientsView*	fGradientsView;
+};
+
+
+//	#pragma mark -
+
+
+GradientsApp::GradientsApp(void)
+	: BApplication("application/x-vnd.Haiku-Gradients")
+{
+	GradientsWindow *window = new GradientsWindow();
+	window->Show();
+}
+
+
+//	#pragma mark -
+
+
+GradientsWindow::GradientsWindow()
+	: BWindow(BRect(0, 0, 230, 490), "Gradients Test", B_TITLED_WINDOW,
+		B_NOT_RESIZABLE | B_NOT_ZOOMABLE)
+{
+	BRect field(10, 10, Bounds().Width() - 10, 30);
+	fGradientsMenu = new BPopUpMenu("gradientsType");
+	fLinearItem = new BMenuItem("Linear", new BMessage(MSG_LINEAR));
+	fRadialItem = new BMenuItem("Radial", new BMessage(MSG_RADIAL));
+	fRadialFocusItem = new BMenuItem("Radial Focus",
+									 new BMessage(MSG_RADIAL_FOCUS));
+	fDiamondItem = new BMenuItem("Diamond", new BMessage(MSG_DIAMOND));
+	fConicItem = new BMenuItem("Conic", new BMessage(MSG_CONIC));
+	fGradientsMenu->AddItem(fLinearItem);
+	fGradientsMenu->AddItem(fRadialItem);
+	fGradientsMenu->AddItem(fRadialFocusItem);
+	fGradientsMenu->AddItem(fDiamondItem);
+	fGradientsMenu->AddItem(fConicItem);
+	fLinearItem->SetMarked(true);
+	fGradientsTypeField = new BMenuField(field, "gradientsField",
+										 "Gradient type:",
+										 fGradientsMenu,
+										 B_FOLLOW_LEFT | B_FOLLOW_BOTTOM,
+										 B_WILL_DRAW | B_NAVIGABLE
+										 | B_FRAME_EVENTS);
+	fGradientsTypeField->SetViewColor(255, 255, 255);
+	fGradientsTypeField->SetDivider(110);
+	AddChild(fGradientsTypeField);
+		
+	BRect bounds = Bounds();
+	bounds.top = 40;
+	fGradientsView = new GradientsView(bounds);
+	AddChild(fGradientsView);
+
+	MoveTo((BScreen().Frame().Width() - Bounds().Width()) / 2,
+		(BScreen().Frame().Height() - Bounds().Height()) / 2 );
+}
+
+
+bool
+GradientsWindow::QuitRequested()
+{
+	be_app->PostMessage(B_QUIT_REQUESTED);
+	return true;
+}
+
+
+void
+GradientsWindow::MessageReceived(BMessage *msg)
+{
+	switch (msg->what) {
+		case MSG_LINEAR:
+			fGradientsView->SetType(B_GRADIENT_LINEAR);
+			break;
+		case MSG_RADIAL:
+			fGradientsView->SetType(B_GRADIENT_RADIAL);
+			break;
+		case MSG_RADIAL_FOCUS:
+			fGradientsView->SetType(B_GRADIENT_RADIAL_FOCUS);
+			break;
+		case MSG_DIAMOND:
+			fGradientsView->SetType(B_GRADIENT_DIAMOND);
+			break;
+		case MSG_CONIC:
+			fGradientsView->SetType(B_GRADIENT_CONIC);
+			break;
+		default:
+			BWindow::MessageReceived(msg);
+			break;
+	}
+}
+
+
+// #pragma mark -
+
+
+GradientsView::GradientsView(const BRect &rect)
+	: BView(rect, "gradientsview", B_FOLLOW_ALL, B_WILL_DRAW | B_PULSE_NEEDED),
+	fType(B_GRADIENT_LINEAR)
+{
+}
+
+
+GradientsView::~GradientsView()
+{
+}
+
+
+void
+GradientsView::Draw(BRect update)
+{
+	switch (fType) {
+		case B_GRADIENT_LINEAR: {
+			DrawLinear(update);
+			break;
+		}
+		case B_GRADIENT_RADIAL: {
+			DrawRadial(update);
+			break;
+		}
+		case B_GRADIENT_RADIAL_FOCUS: {
+			DrawRadialFocus(update);
+			break;
+		}
+		case B_GRADIENT_DIAMOND: {
+			DrawDiamond(update);
+			break;
+		}
+		case B_GRADIENT_CONIC: {
+			DrawConic(update);
+			break;
+		}
+		case B_GRADIENT_NONE:
+		default: {
+			break;
+		}
+	}
+}
+
+void
+GradientsView::DrawLinear(BRect update)
+{
+	BGradientLinear gradient;
+	rgb_color c;
+	c.red = 255;
+	c.green = 0;
+	c.blue = 0;
+	gradient.AddColor(c, 0);
+	c.red = 0;
+	c.green = 255;
+	c.blue = 0;
+	gradient.AddColor(c, 127);
+	c.red = 0;
+	c.green = 0;
+	c.blue = 255;
+	gradient.AddColor(c, 255);
+	
+	// RoundRect
+	SetHighColor(0, 0, 0);
+	FillRoundRect(BRect(10, 10, 110, 110), 5, 5);
+	gradient.SetStart(BPoint(120, 10));
+	gradient.SetEnd(BPoint(220, 110));
+	FillRoundRect(BRect(120, 10, 220, 110), 5, 5, gradient);
+
+	// Rect
+	SetHighColor(0, 0, 0);
+	FillRect(BRect(10, 120, 110, 220));
+	gradient.SetStart(BPoint(120, 120));
+	gradient.SetEnd(BPoint(220, 220));
+	FillRect(BRect(120, 120, 220, 220), gradient);
+	
+	// Triangle
+	SetHighColor(0, 0, 0);
+	FillTriangle(BPoint(60, 230), BPoint(10, 330), BPoint(110, 330));
+	gradient.SetStart(BPoint(60, 230));
+	gradient.SetEnd(BPoint(60, 330));
+	FillTriangle(BPoint(170, 230), BPoint(120, 330), BPoint(220, 330), gradient);
+
+	// Ellipse
+	SetHighColor(0, 0, 0);
+	FillEllipse(BPoint(60, 390), 50, 50);
+	gradient.SetStart(BPoint(60, 340));
+	gradient.SetEnd(BPoint(60, 440));
+	FillEllipse(BPoint(170, 390), 50, 50, gradient);
+}
+
+
+void
+GradientsView::DrawRadial(BRect update)
+{
+	BGradientRadial gradient;
+	rgb_color c;
+	c.red = 255;
+	c.green = 0;
+	c.blue = 0;
+	gradient.AddColor(c, 0);
+	c.red = 0;
+	c.green = 255;
+	c.blue = 0;
+	gradient.AddColor(c, 127);
+	c.red = 0;
+	c.green = 0;
+	c.blue = 255;
+	gradient.AddColor(c, 255);
+	
+	// RoundRect
+	SetHighColor(0, 0, 0);
+	FillRoundRect(BRect(10, 10, 110, 110), 5, 5);
+	gradient.SetCenter(BPoint(170, 60));
+	FillRoundRect(BRect(120, 10, 220, 110), 5, 5, gradient);
+	
+	// Rect
+	SetHighColor(0, 0, 0);
+	FillRect(BRect(10, 120, 110, 220));
+	gradient.SetCenter(BPoint(170, 170));
+	FillRect(BRect(120, 120, 220, 220), gradient);
+	
+	// Triangle
+	SetHighColor(0, 0, 0);
+	FillTriangle(BPoint(60, 230), BPoint(10, 330), BPoint(110, 330));
+	gradient.SetCenter(BPoint(170, 280));
+	FillTriangle(BPoint(170, 230), BPoint(120, 330), BPoint(220, 330), gradient);
+	
+	// Ellipse
+	SetHighColor(0, 0, 0);
+	FillEllipse(BPoint(60, 390), 50, 50);
+	gradient.SetCenter(BPoint(170, 390));
+	FillEllipse(BPoint(170, 390), 50, 50, gradient);
+}
+
+
+void
+GradientsView::DrawRadialFocus(BRect update)
+{
+	BGradientRadialFocus gradient;
+	rgb_color c;
+	c.red = 255;
+	c.green = 0;
+	c.blue = 0;
+	gradient.AddColor(c, 0);
+	c.red = 0;
+	c.green = 255;
+	c.blue = 0;
+	gradient.AddColor(c, 127);
+	c.red = 0;
+	c.green = 0;
+	c.blue = 255;
+	gradient.AddColor(c, 255);
+	
+	// RoundRect
+	SetHighColor(0, 0, 0);
+	FillRoundRect(BRect(10, 10, 110, 110), 5, 5);
+	gradient.SetCenter(BPoint(170, 60));
+	FillRoundRect(BRect(120, 10, 220, 110), 5, 5, gradient);
+	
+	// Rect
+	SetHighColor(0, 0, 0);
+	FillRect(BRect(10, 120, 110, 220));
+	gradient.SetCenter(BPoint(170, 170));
+	FillRect(BRect(120, 120, 220, 220), gradient);
+	
+	// Triangle
+	SetHighColor(0, 0, 0);
+	FillTriangle(BPoint(60, 230), BPoint(10, 330), BPoint(110, 330));
+	gradient.SetCenter(BPoint(170, 280));
+	FillTriangle(BPoint(170, 230), BPoint(120, 330), BPoint(220, 330), gradient);
+	
+	// Ellipse
+	SetHighColor(0, 0, 0);
+	FillEllipse(BPoint(60, 390), 50, 50);
+	gradient.SetCenter(BPoint(170, 390));
+	FillEllipse(BPoint(170, 390), 50, 50, gradient);
+}
+
+
+void
+GradientsView::DrawDiamond(BRect update)
+{
+	BGradientDiamond gradient;
+	rgb_color c;
+	c.red = 255;
+	c.green = 0;
+	c.blue = 0;
+	gradient.AddColor(c, 0);
+	c.red = 0;
+	c.green = 255;
+	c.blue = 0;
+	gradient.AddColor(c, 127);
+	c.red = 0;
+	c.green = 0;
+	c.blue = 255;
+	gradient.AddColor(c, 255);
+	
+	// RoundRect
+	SetHighColor(0, 0, 0);
+	FillRoundRect(BRect(10, 10, 110, 110), 5, 5);
+	gradient.SetCenter(BPoint(170, 60));
+	FillRoundRect(BRect(120, 10, 220, 110), 5, 5, gradient);
+	
+	// Rect
+	SetHighColor(0, 0, 0);
+	FillRect(BRect(10, 120, 110, 220));
+	gradient.SetCenter(BPoint(170, 170));
+	FillRect(BRect(120, 120, 220, 220), gradient);
+	
+	// Triangle
+	SetHighColor(0, 0, 0);
+	FillTriangle(BPoint(60, 230), BPoint(10, 330), BPoint(110, 330));
+	gradient.SetCenter(BPoint(170, 280));
+	FillTriangle(BPoint(170, 230), BPoint(120, 330), BPoint(220, 330), gradient);
+	
+	// Ellipse
+	SetHighColor(0, 0, 0);
+	FillEllipse(BPoint(60, 390), 50, 50);
+	gradient.SetCenter(BPoint(170, 390));
+	FillEllipse(BPoint(170, 390), 50, 50, gradient);
+}
+
+
+void
+GradientsView::DrawConic(BRect update)
+{
+	BGradientConic gradient;
+	rgb_color c;
+	c.red = 255;
+	c.green = 0;
+	c.blue = 0;
+	gradient.AddColor(c, 0);
+	c.red = 0;
+	c.green = 255;
+	c.blue = 0;
+	gradient.AddColor(c, 127);
+	c.red = 0;
+	c.green = 0;
+	c.blue = 255;
+	gradient.AddColor(c, 255);
+	
+	// RoundRect
+	SetHighColor(0, 0, 0);
+	FillRoundRect(BRect(10, 10, 110, 110), 5, 5);
+	gradient.SetCenter(BPoint(170, 60));
+	FillRoundRect(BRect(120, 10, 220, 110), 5, 5, gradient);
+	
+	// Rect
+	SetHighColor(0, 0, 0);
+	FillRect(BRect(10, 120, 110, 220));
+	gradient.SetCenter(BPoint(170, 170));
+	FillRect(BRect(120, 120, 220, 220), gradient);
+	
+	// Triangle
+	SetHighColor(0, 0, 0);
+	FillTriangle(BPoint(60, 230), BPoint(10, 330), BPoint(110, 330));
+	gradient.SetCenter(BPoint(170, 280));
+	FillTriangle(BPoint(170, 230), BPoint(120, 330), BPoint(220, 330), gradient);
+	
+	// Ellipse
+	SetHighColor(0, 0, 0);
+	FillEllipse(BPoint(60, 390), 50, 50);
+	gradient.SetCenter(BPoint(170, 390));
+	FillEllipse(BPoint(170, 390), 50, 50, gradient);
+}
+
+
+void
+GradientsView::SetType(gradient_type type)
+{
+	fType = type;
+	Invalidate();
+}
+
+
+// #pragma mark -
+
+
+int
+main()
+{
+	GradientsApp app;
+	app.Run();
+	return 0;
+}

src/apps/gradients/Gradients.rdef

@@ -0,0 +1,27 @@
+
+resource app_signature "application/x-vnd.Haiku-Gradients";
+
+resource app_version {
+	major  = 1,
+	middle = 0,
+	minor  = 0,
+
+	variety = B_APPV_BETA,
+
+	internal = 0,
+
+	short_info = "Gradients",
+	long_info = "Gradients ©2008 Haiku, Inc."
+};
+
+resource app_flags B_SINGLE_LAUNCH;
+
+#ifdef HAIKU_TARGET_PLATFORM_HAIKU
+
+resource vector_icon {
+	$"6E636966020200040269FF0000D000FF000200040308FF0000C700FF00FF0000"
+	$"FF020A0420204020406020600A044020602060604060020A000100000A010101"
+	$"00"
+};
+
+#endif // HAIKU_TARGET_PLATFORM_HAIKU

src/apps/gradients/Jamfile

@@ -0,0 +1,7 @@
+SubDir HAIKU_TOP src apps gradients ;
+
+Application Gradients :
+	Gradients.cpp
+	: be
+	: Gradients.rdef
+;

src/apps/icon-o-matic/Jamfile

@@ -85,7 +85,7 @@ Application Icon-O-Matic :
 	VectorPath.cpp
 
 	# icon/style
-	Gradient.cpp
+	GradientTransformable.cpp
 	Style.cpp
 	StyleContainer.cpp
 

src/apps/icon-o-matic/MainWindow.cpp

@@ -52,7 +52,7 @@
 
 // TODO: just for testing
 #include "AffineTransformer.h"
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Icon.h"
 #include "MultipleManipulatorState.h"
 #include "PathManipulator.h"

src/apps/icon-o-matic/gui/GradientControl.cpp

@@ -18,7 +18,7 @@
 #include "ui_defines.h"
 #include "support_ui.h"
 
-#include "Gradient.h"
+#include "GradientTransformable.h"
 
 // constructor
 GradientControl::GradientControl(BMessage* message, BHandler* target)

src/apps/icon-o-matic/gui/StyleListView.cpp

@@ -22,7 +22,7 @@
 #include "AssignStyleCommand.h"
 #include "CurrentColor.h"
 #include "CommandStack.h"
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "MoveStylesCommand.h"
 #include "RemoveStylesCommand.h"
 #include "Style.h"

src/apps/icon-o-matic/gui/StyleView.cpp

@@ -23,7 +23,7 @@
 
 #include "CommandStack.h"
 #include "CurrentColor.h"
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "GradientControl.h"
 #include "SetColorCommand.h"
 #include "SetGradientCommand.h"
@@ -438,7 +438,7 @@ StyleView::_SetStyleType(int32 type)
 void
 StyleView::_SetGradientType(int32 type)
 {
-	fGradientControl->Gradient()->SetType((gradient_type)type);
+	fGradientControl->Gradient()->SetType((gradients_type)type);
 }
 
 // _AdoptCurrentColor

src/apps/icon-o-matic/import_export/flat_icon/FlatIconExporter.cpp

@@ -19,7 +19,7 @@
 #include "AffineTransformer.h"
 #include "ContourTransformer.h"
 #include "FlatIconFormat.h"
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Icon.h"
 #include "LittleEndianBuffer.h"
 #include "PathCommandQueue.h"

src/apps/icon-o-matic/import_export/svg/DocumentBuilder.cpp

@@ -31,7 +31,7 @@
 #include <agg_bounding_rect.h>
 
 #include "AutoDeleter.h"
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Icon.h"
 #include "PathContainer.h"
 #include "Shape.h"

src/apps/icon-o-matic/import_export/svg/SVGExporter.cpp

@@ -16,7 +16,7 @@
 #include "support.h"
 
 #include "Icon.h"
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Shape.h"
 #include "StrokeTransformer.h"
 #include "Style.h"

src/apps/icon-o-matic/import_export/svg/SVGGradients.cpp

@@ -10,7 +10,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "Gradient.h"
+#include "GradientTransformable.h"
 
 #include "SVGGradients.h"
 

src/apps/icon-o-matic/shape/commands/FreezeTransformationCommand.cpp

@@ -12,7 +12,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Shape.h"
 #include "Style.h"
 #include "VectorPath.h"

src/apps/icon-o-matic/style/SetColorCommand.cpp

@@ -11,7 +11,7 @@
 #include <new>
 #include <stdio.h>
 
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Style.h"
 
 using std::nothrow;

src/apps/icon-o-matic/style/SetGradientCommand.cpp

@@ -11,7 +11,7 @@
 #include <new>
 #include <stdio.h>
 
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Style.h"
 
 using std::nothrow;

src/apps/icon-o-matic/transformable/TransformGradientBox.cpp

@@ -13,7 +13,7 @@
 #include <string.h>
 
 #include "CanvasView.h"
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Shape.h"
 #include "StateView.h"
 #include "TransformObjectsCommand.h"

src/kits/app/LinkReceiver.cpp

@@ -19,6 +19,11 @@
 #include <ServerProtocol.h>
 #include <String.h>
 #include <Region.h>
+#include <GradientLinear.h>
+#include <GradientRadial.h>
+#include <GradientRadialFocus.h>
+#include <GradientDiamond.h>
+#include <GradientConic.h>
 
 #include "link_message.h"
 #include "syscalls.h"
@@ -31,6 +36,15 @@
 #	define STRACE(x) ;
 #endif
 
+//#define TRACE_LINK_RECEIVER_GRADIENTS
+#ifdef TRACE_LINK_RECEIVER_GRADIENTS
+#	include <OS.h>
+#	define GTRACE(x) debug_printf x
+#else
+#	define GTRACE(x) ;
+#endif
+
+
 namespace BPrivate {
 
 LinkReceiver::LinkReceiver(port_id port)
@@ -455,6 +469,87 @@ LinkReceiver::ReadRegion(BRegion* region)
 }
 
 
+status_t
+LinkReceiver::ReadGradient(BGradient *gradient)
+{
+	GTRACE(("LinkReceiver::ReadGradient\n"));
+	gradient_type gradientType;
+	int32 colorsCount;
+	Read(&gradientType, sizeof(gradient_type));
+	Read(&colorsCount, sizeof(int32));
+	
+	if (colorsCount > 0) {
+		color_step step;
+		for (int i = 0; i < colorsCount; i++) {
+			Read(&step, sizeof(color_step));
+			gradient->AddColor(step, i);
+		}
+	}
+	
+	switch(gradientType) {
+		case B_GRADIENT_LINEAR: {
+			GTRACE(("LinkReceiver::ReadGradient> type == B_GRADIENT_LINEAR\n"));
+			BGradientLinear* linear = (BGradientLinear*) gradient;
+			BPoint start;
+			BPoint end;
+			Read(&start, sizeof(BPoint));
+			Read(&end, sizeof(BPoint));
+			linear->SetStart(start);
+			linear->SetEnd(end);
+			break;
+		}
+		case B_GRADIENT_RADIAL: {
+			GTRACE(("LinkReceiver::ReadGradient> type == B_GRADIENT_RADIAL\n"));
+			BGradientRadial* radial = (BGradientRadial*) gradient;
+			BPoint center;
+			float radius;
+			Read(&center, sizeof(BPoint));
+			Read(&radius, sizeof(float));
+			radial->SetCenter(center);
+			radial->SetRadius(radius);
+			break;
+		}
+		case B_GRADIENT_RADIAL_FOCUS: {
+			GTRACE(("LinkReceiver::ReadGradient> type == B_GRADIENT_RADIAL_FOCUS\n"));
+			BGradientRadialFocus* radialFocus =
+				(BGradientRadialFocus*) gradient;
+			BPoint center;
+			BPoint focal;
+			float radius;
+			Read(&center, sizeof(BPoint));
+			Read(&focal, sizeof(BPoint));
+			Read(&radius, sizeof(float));
+			radialFocus->SetCenter(center);
+			radialFocus->SetFocal(focal);
+			radialFocus->SetRadius(radius);
+			break;
+		}
+		case B_GRADIENT_DIAMOND: {
+			GTRACE(("LinkReceiver::ReadGradient> type == B_GRADIENT_DIAMOND\n"));
+			BGradientDiamond* diamond = (BGradientDiamond*) gradient;
+			BPoint center;
+			Read(&center, sizeof(BPoint));
+			diamond->SetCenter(center);
+			break;
+		}
+		case B_GRADIENT_CONIC: {
+			GTRACE(("LinkReceiver::ReadGradient> type == B_GRADIENT_CONIC\n"));
+			BGradientConic* conic = (BGradientConic*) gradient;
+			BPoint center;
+			float angle;
+			Read(&center, sizeof(BPoint));
+			Read(&angle, sizeof(float));
+			conic->SetCenter(center);
+			conic->SetAngle(angle);
+			break;
+		}
+		case B_GRADIENT_NONE: {
+			GTRACE(("LinkReceiver::ReadGradient> type == B_GRADIENT_NONE\n"));
+			break;
+		}
+	}
+	
+	return B_OK;
+}
+
 }	// namespace BPrivate
-
-

src/kits/app/ServerLink.cpp

@@ -12,12 +12,26 @@
 #include <stdlib.h>
 #include <string.h>
 #include <new>
+#include <Gradient.h>
+#include <GradientLinear.h>
+#include <GradientRadial.h>
+#include <GradientRadialFocus.h>
+#include <GradientDiamond.h>
+#include <GradientConic.h>
 #include <Region.h>
 #include <Shape.h>
 
 #include <ServerLink.h>
 #include <ServerProtocol.h>
 
+//#define TRACE_SERVER_LINK_GRADIENTS
+#ifdef TRACE_SERVER_LINK_GRADIENTS
+#	include <OS.h>
+#	define GTRACE(x) debug_printf x
+#else
+#	define GTRACE(x) ;
+#endif
+
 
 namespace BPrivate {
 
@@ -100,6 +114,163 @@ ServerLink::AttachShape(BShape &shape)
 }
 
 
+status_t
+ServerLink::ReadGradient(BGradient *gradient)
+{
+	GTRACE(("ServerLink::ReadGradient\n"));
+	fReceiver->ReadGradient(gradient);
+/*	gradient_type gradientType;
+	int32 colorsCount;
+	fReceiver->Read(&gradientType, sizeof(gradient_type));
+	fReceiver->Read(&colorsCount, sizeof(int32));
+
+	if (colorsCount > 0) {
+		color_step step;
+		for (int i = 0; i < colorsCount; i++) {
+			fReceiver->Read(&step, sizeof(color_step));
+			gradient->AddColor(step, i);
+		}
+	}
+
+	switch(gradientType) {
+		case B_GRADIENT_LINEAR: {
+			GTRACE(("ServerLink::ReadGradient> type == B_GRADIENT_LINEAR\n"));
+			BGradientLinear* linear = (BGradientLinear*) gradient;
+			BPoint start;
+			BPoint end;
+			fReceiver->Read(&start, sizeof(BPoint));
+			fReceiver->Read(&end, sizeof(BPoint));
+			linear->SetStart(start);
+			linear->SetEnd(end);
+			break;
+		}
+		case B_GRADIENT_RADIAL: {
+			GTRACE(("ServerLink::ReadGradient> type == B_GRADIENT_RADIAL\n"));
+			BGradientRadial* radial = (BGradientRadial*) gradient;
+			BPoint center;
+			float radius;
+			fReceiver->Read(&center, sizeof(BPoint));
+			fReceiver->Read(&radius, sizeof(float));
+			radial->SetCenter(center);
+			radial->SetRadius(radius);
+			break;
+		}
+		case B_GRADIENT_RADIAL_FOCUS: {
+			GTRACE(("ServerLink::ReadGradient> type == B_GRADIENT_RADIAL_FOCUS\n"));
+			BGradientRadialFocus* radialFocus =
+				(BGradientRadialFocus*) gradient;
+			BPoint center;
+			BPoint focal;
+			float radius;
+			fReceiver->Read(&center, sizeof(BPoint));
+			fReceiver->Read(&focal, sizeof(BPoint));
+			fReceiver->Read(&radius, sizeof(float));
+			radialFocus->SetCenter(center);
+			radialFocus->SetFocal(focal);
+			radialFocus->SetRadius(radius);
+			break;
+		}
+		case B_GRADIENT_DIAMOND: {
+			GTRACE(("ServerLink::ReadGradient> type == B_GRADIENT_DIAMOND\n"));
+			BGradientDiamond* diamond = (BGradientDiamond*) gradient;
+			BPoint center;
+			fReceiver->Read(&center, sizeof(BPoint));
+			diamond->SetCenter(center);
+			break;
+		}
+		case B_GRADIENT_CONIC: {
+			GTRACE(("ServerLink::ReadGradient> type == B_GRADIENT_CONIC\n"));
+			BGradientConic* conic = (BGradientConic*) gradient;
+			BPoint center;
+			float angle;
+			fReceiver->Read(&center, sizeof(BPoint));
+			fReceiver->Read(&angle, sizeof(float));
+			conic->SetCenter(center);
+			conic->SetAngle(angle);
+			break;
+		}
+		case B_GRADIENT_NONE: {
+			GTRACE(("ServerLink::ReadGradient> type == B_GRADIENT_NONE\n"));
+			break;
+		}
+	}
+*/
+	return B_OK;
+}
+
+	
+status_t
+ServerLink::AttachGradient(const BGradient &gradient)
+{
+	GTRACE(("ServerLink::AttachGradient\n"));
+	gradient_type gradientType = gradient.Type();
+	int32 colorsCount = gradient.CountColors();
+	GTRACE(("ServerLink::AttachGradient> colors count == %d\n", (int)colorsCount));
+	fSender->Attach(&gradientType, sizeof(gradient_type));
+	fSender->Attach(&colorsCount, sizeof(int32));
+	if (colorsCount > 0) {
+		for (int i = 0; i < colorsCount; i++) {
+			fSender->Attach((color_step*) gradient.ColorAtFast(i),
+							sizeof(color_step));
+		}
+	}
+	
+	switch(gradientType) {
+		case B_GRADIENT_LINEAR: {
+			GTRACE(("ServerLink::AttachGradient> type == B_GRADIENT_LINEAR\n"));
+			const BGradientLinear* linear = (BGradientLinear*) &gradient;
+			BPoint start = linear->Start();
+			BPoint end = linear->End();
+			fSender->Attach(&start, sizeof(BPoint));
+			fSender->Attach(&end, sizeof(BPoint));
+			break;
+		}
+		case B_GRADIENT_RADIAL: {
+			GTRACE(("ServerLink::AttachGradient> type == B_GRADIENT_RADIAL\n"));
+			const BGradientRadial* radial = (BGradientRadial*) &gradient;
+			BPoint center = radial->Center();
+			float radius = radial->Radius();
+			fSender->Attach(&center, sizeof(BPoint));
+			fSender->Attach(&radius, sizeof(float));
+			break;
+		}
+		case B_GRADIENT_RADIAL_FOCUS: {
+			GTRACE(("ServerLink::AttachGradient> type == B_GRADIENT_RADIAL_FOCUS\n"));
+			const BGradientRadialFocus* radialFocus =
+				(BGradientRadialFocus*) &gradient;
+			BPoint center = radialFocus->Center();
+			BPoint focal = radialFocus->Focal();
+			float radius = radialFocus->Radius();
+			fSender->Attach(&center, sizeof(BPoint));
+			fSender->Attach(&focal, sizeof(BPoint));
+			fSender->Attach(&radius, sizeof(float));
+			break;
+		}
+		case B_GRADIENT_DIAMOND: {
+			GTRACE(("ServerLink::AttachGradient> type == B_GRADIENT_DIAMOND\n"));
+			const BGradientDiamond* diamond = (BGradientDiamond*) &gradient;
+			BPoint center = diamond->Center();
+			fSender->Attach(&center, sizeof(BPoint));
+			break;
+		}
+		case B_GRADIENT_CONIC: {
+			GTRACE(("ServerLink::AttachGradient> type == B_GRADIENT_CONIC\n"));
+			const BGradientConic* conic = (BGradientConic*) &gradient;
+			BPoint center = conic->Center();
+			float angle = conic->Angle();
+			fSender->Attach(&center, sizeof(BPoint));
+			fSender->Attach(&angle, sizeof(float));
+			break;
+		}
+		case B_GRADIENT_NONE: {
+			GTRACE(("ServerLink::AttachGradient> type == B_GRADIENT_NONE\n"));
+			break;
+		}
+	}
+	return B_OK;
+}
+
+
 status_t
 ServerLink::FlushWithReply(int32 &code)
 {

src/kits/interface/Gradient.cpp

@@ -0,0 +1,448 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Stephan Aßmus <superstippi@gmx.de>
+ *		Artur Wyszynski <harakash@gmail.com>
+ */
+
+#include "Gradient.h"
+
+#include <math.h>
+#include <stdio.h>
+
+#include <Message.h>
+
+
+// constructor
+color_step::color_step(const rgb_color c, float o)
+{
+	color.red = c.red;
+	color.green = c.green;
+	color.blue = c.blue;
+	color.alpha = c.alpha;
+	offset = o;
+}
+
+
+// constructor
+color_step::color_step(uint8 r, uint8 g, uint8 b, uint8 a, float o)
+{
+	color.red = r;
+	color.green = g;
+	color.blue = b;
+	color.alpha = a;
+	offset = o;
+}
+
+
+// constructor
+color_step::color_step(const color_step& other)
+{
+	color.red = other.color.red;
+	color.green = other.color.green;
+	color.blue = other.color.blue;
+	color.alpha = other.color.alpha;
+	offset = other.offset;
+}
+
+
+// constructor
+color_step::color_step()
+{
+	color.red = 0;
+	color.green = 0;
+	color.blue = 0;
+	color.alpha = 255;
+	offset = 0;
+}
+
+
+// operator!=
+bool
+color_step::operator!=(const color_step& other) const
+{
+	return color.red != other.color.red ||
+	color.green != other.color.green ||
+	color.blue != other.color.blue ||
+	color.alpha != other.color.alpha ||
+	offset != other.offset;
+}
+
+
+static int
+sort_color_steps_by_offset(const void* left, const void* right)
+{
+	const color_step **firstStep((const color_step**) left),
+					 **secondStep((const color_step**) right);
+	int ret = 0;
+	if ((*firstStep)->offset > (*secondStep)->offset) {
+		ret = 1;
+	} if ((*firstStep)->offset < (*secondStep)->offset) {
+		ret = -1;
+	} if ((*firstStep)->offset == (*secondStep)->offset) {
+		ret = 0;
+	}
+	return ret;
+}
+
+
+// #pragma mark -
+
+
+// constructor
+BGradient::BGradient()
+	: BArchivable(),
+	fColors(4),
+	fType(B_GRADIENT_NONE)
+{
+}
+
+
+// constructor
+BGradient::BGradient(BMessage* archive)
+	: BArchivable(archive),
+	fColors(4),
+	fType(B_GRADIENT_NONE)
+{
+	if (!archive)
+		return;
+
+	// color steps
+	color_step step;
+	for (int32 i = 0; archive->FindFloat("offset", i, &step.offset) >= B_OK; i++) {
+		if (archive->FindInt32("color", i, (int32*)&step.color) >= B_OK)
+			AddColor(step, i);
+		else
+			break;
+	}
+	if (archive->FindInt32("type", (int32*)&fType) < B_OK)
+		fType = B_GRADIENT_LINEAR;
+
+	// linear
+	if (archive->FindFloat("linear_x1", (float*)&fData.linear.x1) < B_OK)
+		fData.linear.x1 = 0.0f;
+	if (archive->FindFloat("linear_y1", (float*)&fData.linear.y1) < B_OK)
+		fData.linear.y1 = 0.0f;
+	if (archive->FindFloat("linear_x2", (float*)&fData.linear.x2) < B_OK)
+		fData.linear.x2 = 0.0f;
+	if (archive->FindFloat("linear_y2", (float*)&fData.linear.y2) < B_OK)
+		fData.linear.x2 = 0.0f;
+
+	// radial
+	if (archive->FindFloat("radial_cx", (float*)&fData.radial.cx) < B_OK)
+		fData.radial.cx = 0.0f;
+	if (archive->FindFloat("radial_cy", (float*)&fData.radial.cy) < B_OK)
+		fData.radial.cy = 0.0f;
+	if (archive->FindFloat("radial_radius", (float*)&fData.radial.radius) < B_OK)
+		fData.radial.radius = 0.0f;
+
+	// radial focus
+	if (archive->FindFloat("radial_f_cx", (float*)&fData.radial_focus.cx) < B_OK)
+		fData.radial_focus.cx = 0.0f;
+	if (archive->FindFloat("radial_f_cy", (float*)&fData.radial_focus.cy) < B_OK)
+		fData.radial_focus.cy = 0.0f;
+	if (archive->FindFloat("radial_f_fx", (float*)&fData.radial_focus.fx) < B_OK)
+		fData.radial_focus.fx = 0.0f;
+	if (archive->FindFloat("radial_f_fy", (float*)&fData.radial_focus.fy) < B_OK)
+		fData.radial_focus.fy = 0.0f;
+	if (archive->FindFloat("radial_f_radius", (float*)&fData.radial.radius) < B_OK)
+		fData.radial.radius = 0.0f;
+
+	// diamond
+	if (archive->FindFloat("diamond_cx", (float*)&fData.diamond.cx) < B_OK)
+		fData.diamond.cx = 0.0f;
+	if (archive->FindFloat("diamond_cy", (float*)&fData.diamond.cy) < B_OK)
+		fData.diamond.cy = 0.0f;
+
+	// conic
+	if (archive->FindFloat("conic_cx", (float*)&fData.conic.cx) < B_OK)
+		fData.conic.cx = 0.0f;
+	if (archive->FindFloat("conic_cy", (float*)&fData.conic.cy) < B_OK)
+		fData.conic.cy = 0.0f;
+	if (archive->FindFloat("conic_angle", (float*)&fData.conic.angle) < B_OK)
+		fData.conic.angle = 0.0f;
+}
+
+
+// destructor
+BGradient::~BGradient()
+{
+	MakeEmpty();
+}
+
+
+// Archive
+status_t
+BGradient::Archive(BMessage* into, bool deep) const
+{
+	status_t ret = BArchivable::Archive(into, deep);
+
+	// color steps
+	if (ret >= B_OK) {
+		for (int32 i = 0; color_step* step = ColorAt(i); i++) {
+			ret = into->AddInt32("color", (const uint32&)step->color);
+			if (ret < B_OK)
+				break;
+			ret = into->AddFloat("offset", step->offset);
+			if (ret < B_OK)
+				break;
+		}
+	}
+	// gradient type
+	if (ret >= B_OK)
+		ret = into->AddInt32("type", (int32)fType);
+
+	// linear
+	if (ret >= B_OK)
+		ret = into->AddFloat("linear_x1", (float)fData.linear.x1);
+	if (ret >= B_OK)
+		ret = into->AddFloat("linear_y1", (float)fData.linear.y1);
+	if (ret >= B_OK)
+		ret = into->AddFloat("linear_x2", (float)fData.linear.x2);
+	if (ret >= B_OK)
+		ret = into->AddFloat("linear_y2", (float)fData.linear.y2);
+	
+	// radial
+	if (ret >= B_OK)
+		ret = into->AddFloat("radial_cx", (float)fData.radial.cx);
+	if (ret >= B_OK)
+		ret = into->AddFloat("radial_cy", (float)fData.radial.cy);
+	if (ret >= B_OK)
+		ret = into->AddFloat("radial_radius", (float)fData.radial.radius);
+	
+	// radial focus
+	if (ret >= B_OK)
+		ret = into->AddFloat("radial_f_cx", (float)fData.radial_focus.cx);
+	if (ret >= B_OK)
+		ret = into->AddFloat("radial_f_cy", (float)fData.radial_focus.cy);
+	if (ret >= B_OK)
+		ret = into->AddFloat("radial_f_fx", (float)fData.radial_focus.fx);
+	if (ret >= B_OK)
+		ret = into->AddFloat("radial_f_fy", (float)fData.radial_focus.fy);
+	if (ret >= B_OK)
+		ret = into->AddFloat("radial_radius", (float)fData.radial.radius);
+	
+	// diamond
+	if (ret >= B_OK)
+		ret = into->AddFloat("diamond_cx", (float)fData.diamond.cx);
+	if (ret >= B_OK)
+		ret = into->AddFloat("diamond_cy", (float)fData.diamond.cy);
+
+	// conic
+	if (ret >= B_OK)
+		ret = into->AddFloat("conic_cx", (float)fData.conic.cx);
+	if (ret >= B_OK)
+		ret = into->AddFloat("conic_cy", (float)fData.conic.cy);
+	if (ret >= B_OK)
+		ret = into->AddFloat("conic_angle", (float)fData.conic.angle);
+	
+	// finish off
+	if (ret >= B_OK)
+		ret = into->AddString("class", "BGradient");
+	
+	return ret;
+}
+
+
+// operator=
+BGradient&
+BGradient::operator=(const BGradient& other)
+{
+	SetColors(other);
+	fType = other.fType;
+	return *this;
+}
+
+
+// operator==
+bool
+BGradient::operator==(const BGradient& other) const
+{
+	return ((other.Type() == Type()) && ColorStepsAreEqual(other));
+}
+
+
+// operator!=
+bool
+BGradient::operator!=(const BGradient& other) const
+{
+	return !(*this == other);
+}
+
+
+// ColorStepsAreEqual
+bool
+BGradient::ColorStepsAreEqual(const BGradient& other) const
+{
+	int32 count = CountColors();
+	if (count == other.CountColors() &&
+		fType == other.fType) {
+		
+		bool equal = true;
+		for (int32 i = 0; i < count; i++) {
+			color_step* ourStep = ColorAtFast(i);
+			color_step* otherStep = other.ColorAtFast(i);
+			if (*ourStep != *otherStep) {
+				equal = false;
+				break;
+			}
+		}
+		return equal;
+	}
+	return false;
+}
+
+
+// SetColors
+void
+BGradient::SetColors(const BGradient& other)
+{
+	MakeEmpty();
+	for (int32 i = 0; color_step* step = other.ColorAt(i); i++)
+		AddColor(*step, i);
+}
+
+
+// AddColor
+int32
+BGradient::AddColor(const rgb_color& color, float offset)
+{
+	// find the correct index (sorted by offset)
+	color_step* step = new color_step(color, offset);
+	int32 index = 0;
+	int32 count = CountColors();
+	for (; index < count; index++) {
+		color_step* s = ColorAtFast(index);
+		if (s->offset > step->offset)
+			break;
+	}
+	if (!fColors.AddItem((void*)step, index)) {
+		delete step;
+		return -1;
+	}
+	return index;
+}
+
+
+// AddColor
+bool
+BGradient::AddColor(const color_step& color, int32 index)
+{
+	color_step* step = new color_step(color);
+	if (!fColors.AddItem((void*)step, index)) {
+		delete step;
+		return false;
+	}
+	return true;
+}
+
+
+// RemoveColor
+bool
+BGradient::RemoveColor(int32 index)
+{
+	color_step* step = (color_step*)fColors.RemoveItem(index);
+	if (!step) {
+		return false;
+	}
+	delete step;
+	return true;
+}
+
+
+// SetColor
+bool
+BGradient::SetColor(int32 index, const color_step& color)
+{
+	if (color_step* step = ColorAt(index)) {
+		if (*step != color) {
+			step->color = color.color;
+			step->offset = color.offset;
+			return true;
+		}
+	}
+	return false;
+}
+
+
+// SetColor
+bool
+BGradient::SetColor(int32 index, const rgb_color& color)
+{
+	if (color_step* step = ColorAt(index)) {
+		if ((uint32&)step->color != (uint32&)color) {
+			step->color = color;
+			return true;
+		}
+	}
+	return false;
+}
+
+
+// SetOffset
+bool
+BGradient::SetOffset(int32 index, float offset)
+{
+	color_step* step = ColorAt(index);
+	if (step && step->offset != offset) {
+		step->offset = offset;
+		return true;
+	}
+	return false;
+}
+
+
+// CountColors
+int32
+BGradient::CountColors() const
+{
+	return fColors.CountItems();
+}
+
+
+// ColorAt
+color_step*
+BGradient::ColorAt(int32 index) const
+{
+	return (color_step*)fColors.ItemAt(index);
+}
+
+
+// ColorAtFast
+color_step*
+BGradient::ColorAtFast(int32 index) const
+{
+	return (color_step*)fColors.ItemAtFast(index);
+}
+
+
+// Colors
+color_step*
+BGradient::Colors() const
+{
+	if (CountColors() > 0) {
+		return (color_step*) fColors.Items();
+	}
+	return NULL;
+}
+
+
+// SortColorStepsByOffset
+void
+BGradient::SortColorStepsByOffset()
+{
+	fColors.SortItems(sort_color_steps_by_offset);
+}
+
+
+// MakeEmpty
+void
+BGradient::MakeEmpty()
+{
+	int32 count = CountColors();
+	for (int32 i = 0; i < count; i++)
+		delete ColorAtFast(i);
+	fColors.MakeEmpty();
+}

src/kits/interface/GradientConic.cpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <harakash@gmail.com>
+ */
+
+#include <Point.h>
+#include <Gradient.h>
+#include <GradientConic.h>
+
+
+// constructor
+BGradientConic::BGradientConic()
+{
+	fData.conic.cx = 0.0f;
+	fData.conic.cy = 0.0f;
+	fData.conic.angle = 0.0f;
+	fType = B_GRADIENT_CONIC;
+}
+
+
+// constructor
+BGradientConic::BGradientConic(const BPoint& center, float angle)
+{
+	fData.conic.cx = center.x;
+	fData.conic.cy = center.y;
+	fData.conic.angle = angle;
+	fType = B_GRADIENT_CONIC;
+}
+
+
+// constructor
+BGradientConic::BGradientConic(float cx, float cy, float angle)
+{
+	fData.conic.cx = cx;
+	fData.conic.cy = cy;
+	fData.conic.angle = angle;
+	fType = B_GRADIENT_CONIC;
+}
+
+
+// Center
+BPoint
+BGradientConic::Center() const
+{
+	return BPoint(fData.conic.cx, fData.conic.cy);
+}
+
+
+// SetCenter
+void
+BGradientConic::SetCenter(const BPoint& center)
+{
+	fData.conic.cx = center.x;
+	fData.conic.cy = center.y;
+}
+
+
+// SetCenter
+void
+BGradientConic::SetCenter(float cx, float cy)
+{
+	fData.conic.cx = cx;
+	fData.conic.cy = cy;
+}
+
+
+// Angle
+float
+BGradientConic::Angle() const
+{
+	return fData.conic.angle;
+}
+
+
+// SetAngle
+void
+BGradientConic::SetAngle(float angle)
+{
+	fData.conic.angle = angle;
+}

src/kits/interface/GradientDiamond.cpp

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <harakash@gmail.com>
+ */
+
+#include <Point.h>
+#include <Gradient.h>
+#include <GradientDiamond.h>
+
+
+// constructor
+BGradientDiamond::BGradientDiamond()
+{
+	fData.diamond.cx = 0.0f;
+	fData.diamond.cy = 0.0f;
+	fType = B_GRADIENT_DIAMOND;
+}
+
+
+// constructor
+BGradientDiamond::BGradientDiamond(const BPoint& center)
+{
+	fData.diamond.cx = center.x;
+	fData.diamond.cy = center.y;
+	fType = B_GRADIENT_DIAMOND;
+}
+
+
+// constructor
+BGradientDiamond::BGradientDiamond(float cx, float cy)
+{
+	fData.diamond.cx = cx;
+	fData.diamond.cy = cy;
+	fType = B_GRADIENT_DIAMOND;
+}
+
+
+// Center
+BPoint
+BGradientDiamond::Center() const
+{
+	return BPoint(fData.diamond.cx, fData.diamond.cy);
+}
+
+
+// SetCenter
+void
+BGradientDiamond::SetCenter(const BPoint& center)
+{
+	fData.diamond.cx = center.x;
+	fData.diamond.cy = center.y;
+}
+
+
+// SetCenter
+void
+BGradientDiamond::SetCenter(float cx, float cy)
+{
+	fData.diamond.cx = cx;
+	fData.diamond.cy = cy;
+}

src/kits/interface/GradientLinear.cpp

@@ -0,0 +1,96 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <harakash@gmail.com>
+ */
+
+#include <Point.h>
+#include <Gradient.h>
+#include <GradientLinear.h>
+
+
+// constructor
+BGradientLinear::BGradientLinear()
+{
+	fData.linear.x1 = 0.0f;
+	fData.linear.y1 = 0.0f;
+	fData.linear.x2 = 0.0f;
+	fData.linear.y2 = 0.0f;
+	fType = B_GRADIENT_LINEAR;
+}
+
+
+// constructor
+BGradientLinear::BGradientLinear(const BPoint& start, const BPoint& end)
+{
+	fData.linear.x1 = start.x;
+	fData.linear.y1 = start.y;
+	fData.linear.x2 = end.x;
+	fData.linear.y2 = end.y;
+	fType = B_GRADIENT_LINEAR;
+}
+
+
+// constructor
+BGradientLinear::BGradientLinear(float x1, float y1, float x2, float y2)
+{
+	fData.linear.x1 = x1;
+	fData.linear.y1 = y1;
+	fData.linear.x2 = x2;
+	fData.linear.y2 = y2;
+	fType = B_GRADIENT_LINEAR;
+}
+
+
+// Start
+BPoint
+BGradientLinear::Start() const
+{
+	return BPoint(fData.linear.x1, fData.linear.y1);
+}
+
+
+// SetStart
+void
+BGradientLinear::SetStart(const BPoint& start)
+{
+	fData.linear.x1 = start.x;
+	fData.linear.y1 = start.y;
+}
+
+
+// SetStart
+void
+BGradientLinear::SetStart(float x, float y)
+{
+	fData.linear.x1 = x;
+	fData.linear.y1 = y;
+}
+
+
+// End
+BPoint
+BGradientLinear::End() const
+{
+	return BPoint(fData.linear.x2, fData.linear.y2);
+}
+
+
+// SetEnd
+void
+BGradientLinear::SetEnd(const BPoint& end)
+{
+	fData.linear.x2 = end.x;
+	fData.linear.y2 = end.y;
+}
+
+
+// SetEnd
+void
+BGradientLinear::SetEnd(float x, float y)
+{
+	fData.linear.x2 = x;
+	fData.linear.y2 = y;
+}

src/kits/interface/GradientRadial.cpp

@@ -0,0 +1,83 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <harakash@gmail.com>
+ */
+
+#include <Point.h>
+#include <Gradient.h>
+#include <GradientRadial.h>
+
+
+// constructor
+BGradientRadial::BGradientRadial()
+{
+	fData.radial.cx = 0.0f;
+	fData.radial.cy = 0.0f;
+	fData.radial.radius = 0.0f;
+	fType = B_GRADIENT_RADIAL;
+}
+
+
+// constructor
+BGradientRadial::BGradientRadial(const BPoint& center, float radius)
+{
+	fData.radial.cx = center.x;
+	fData.radial.cy = center.y;
+	fData.radial.radius = radius;
+	fType = B_GRADIENT_RADIAL;
+}
+
+
+// constructor
+BGradientRadial::BGradientRadial(float cx, float cy, float radius)
+{
+	fData.radial.cx = cx;
+	fData.radial.cy = cy;
+	fData.radial.radius = radius;
+	fType = B_GRADIENT_RADIAL;
+}
+
+
+// Center
+BPoint
+BGradientRadial::Center() const
+{
+	return BPoint(fData.radial.cx, fData.radial.cy);
+}
+
+
+// SetCenter
+void
+BGradientRadial::SetCenter(const BPoint& center)
+{
+	fData.radial.cx = center.x;
+	fData.radial.cy = center.y;
+}
+
+
+// SetCenter
+void
+BGradientRadial::SetCenter(float cx, float cy)
+{
+	fData.radial.cx = cx;
+	fData.radial.cy = cy;
+}
+
+
+// Radius
+float
+BGradientRadial::Radius() const
+{
+	return fData.radial.radius;
+}
+
+
+// SetRadius
+void
+BGradientRadial::SetRadius(float radius)
+{
+	fData.radial.radius = radius;
+}

src/kits/interface/GradientRadialFocus.cpp

@@ -0,0 +1,117 @@
+/*
+ * Copyright 2006-2008, Haiku.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Artur Wyszynski <harakash@gmail.com>
+ */
+
+#include <Point.h>
+#include <Gradient.h>
+#include <GradientRadialFocus.h>
+
+
+// constructor
+BGradientRadialFocus::BGradientRadialFocus()
+{
+	fData.radial_focus.cx = 0.0f;
+	fData.radial_focus.cy = 0.0f;
+	fData.radial_focus.fx = 0.0f;
+	fData.radial_focus.fy = 0.0f;
+	fData.radial_focus.radius = 0.0f;
+	fType = B_GRADIENT_RADIAL_FOCUS;
+}
+
+
+// constructor
+BGradientRadialFocus::BGradientRadialFocus(const BPoint& center, float radius,
+	const BPoint& focal)
+{
+	fData.radial_focus.cx = center.x;
+	fData.radial_focus.cy = center.y;
+	fData.radial_focus.fx = focal.x;
+	fData.radial_focus.fy = focal.y;
+	fData.radial_focus.radius = radius;
+	fType = B_GRADIENT_RADIAL_FOCUS;
+}
+
+
+// constructor
+BGradientRadialFocus::BGradientRadialFocus(float cx, float cy, float radius,
+	float fx, float fy)
+{
+	fData.radial_focus.cx = cx;
+	fData.radial_focus.cy = cy;
+	fData.radial_focus.fx = fx;
+	fData.radial_focus.fy = fy;
+	fData.radial_focus.radius = radius;
+	fType = B_GRADIENT_RADIAL_FOCUS;
+}
+
+
+// Center
+BPoint
+BGradientRadialFocus::Center() const
+{
+	return BPoint(fData.radial_focus.cx, fData.radial_focus.cy);
+}
+
+
+// SetCenter
+void
+BGradientRadialFocus::SetCenter(const BPoint& center)
+{
+	fData.radial_focus.cx = center.x;
+	fData.radial_focus.cy = center.y;
+}
+
+
+// SetCenter
+void
+BGradientRadialFocus::SetCenter(float cx, float cy)
+{
+	fData.radial_focus.cx = cx;
+	fData.radial_focus.cy = cy;
+}
+
+
+// Focal
+BPoint
+BGradientRadialFocus::Focal() const
+{
+	return BPoint(fData.radial_focus.fx, fData.radial_focus.fy);
+}
+
+
+// SetFocal
+void
+BGradientRadialFocus::SetFocal(const BPoint& focal)
+{
+	fData.radial_focus.fx = focal.x;
+	fData.radial_focus.fy = focal.y;
+}
+
+
+// SetFocal
+void
+BGradientRadialFocus::SetFocal(float fx, float fy)
+{
+	fData.radial_focus.fx = fx;
+	fData.radial_focus.fy = fy;
+}
+
+
+// Radius
+float
+BGradientRadialFocus::Radius() const
+{
+	return fData.radial_focus.radius;
+}
+
+
+// SetRadius
+void
+BGradientRadialFocus::SetRadius(float radius)
+{
+	fData.radial_focus.radius = radius;
+}

src/kits/interface/Jamfile

@@ -57,6 +57,12 @@ MergeObject <libbe>interface_kit.o :
 	Deskbar.cpp
 	Dragger.cpp
 	Font.cpp
+	Gradient.cpp
+	GradientLinear.cpp
+	GradientRadial.cpp
+	GradientRadialFocus.cpp
+	GradientDiamond.cpp
+	GradientConic.cpp
 	GraphicsDefs.cpp
 	GridLayout.cpp
 	GridLayoutBuilder.cpp

src/kits/interface/View.cpp

@@ -44,6 +44,12 @@
 #include <View.h>
 #include <Window.h>
 
+#include <GradientLinear.h>
+#include <GradientRadial.h>
+#include <GradientRadialFocus.h>
+#include <GradientDiamond.h>
+#include <GradientConic.h>
+
 #include <math.h>
 #include <new>
 #include <stdio.h>
@@ -2573,6 +2579,15 @@ BView::FillEllipse(BPoint center, float xRadius, float yRadius,
 }
 
 
+void
+BView::FillEllipse(BPoint center, float xRadius, float yRadius,
+	const BGradient& gradient)
+{
+	FillEllipse(BRect(center.x - xRadius, center.y - yRadius,
+					  center.x + xRadius, center.y + yRadius), gradient);
+}
+
+
 void
 BView::FillEllipse(BRect rect, ::pattern pattern)
 {
@@ -2589,6 +2604,23 @@ BView::FillEllipse(BRect rect, ::pattern pattern)
 }
 
 
+void
+BView::FillEllipse(BRect rect, const BGradient& gradient)
+{
+	if (fOwner == NULL)
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	
+	fOwner->fLink->StartMessage(AS_FILL_ELLIPSE_GRADIENT);
+	fOwner->fLink->Attach<BRect>(rect);
+	fOwner->fLink->Attach<gradient_type>(gradient.Type());
+	fOwner->fLink->AttachGradient(gradient);
+	
+	_FlushIfNotInTransaction();
+}
+
+
 void
 BView::StrokeArc(BPoint center, float xRadius, float yRadius, float startAngle,
 	float arcAngle, ::pattern pattern)
@@ -2626,6 +2658,15 @@ BView::FillArc(BPoint center,float xRadius, float yRadius, float startAngle,
 }
 
 
+void
+BView::FillArc(BPoint center,float xRadius, float yRadius, float startAngle,
+	float arcAngle, const BGradient& gradient)
+{
+	FillArc(BRect(center.x - xRadius, center.y - yRadius, center.x + xRadius,
+				  center.y + yRadius), startAngle, arcAngle, gradient);
+}
+
+
 void
 BView::FillArc(BRect rect, float startAngle, float arcAngle,
 	::pattern pattern)
@@ -2645,6 +2686,26 @@ BView::FillArc(BRect rect, float startAngle, float arcAngle,
 }
 
 
+void
+BView::FillArc(BRect rect, float startAngle, float arcAngle,
+	const BGradient& gradient)
+{
+	if (fOwner == NULL)
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	
+	fOwner->fLink->StartMessage(AS_FILL_ARC_GRADIENT);
+	fOwner->fLink->Attach<BRect>(rect);
+	fOwner->fLink->Attach<float>(startAngle);
+	fOwner->fLink->Attach<float>(arcAngle);
+	fOwner->fLink->Attach<gradient_type>(gradient.Type());
+	fOwner->fLink->AttachGradient(gradient);
+	
+	_FlushIfNotInTransaction();
+}
+
+
 void
 BView::StrokeBezier(BPoint *controlPoints, ::pattern pattern)
 {
@@ -2683,6 +2744,26 @@ BView::FillBezier(BPoint *controlPoints, ::pattern pattern)
 }
 
 
+void
+BView::FillBezier(BPoint *controlPoints, const BGradient& gradient)
+{
+	if (fOwner == NULL)
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	
+	fOwner->fLink->StartMessage(AS_FILL_BEZIER_GRADIENT);
+	fOwner->fLink->Attach<BPoint>(controlPoints[0]);
+	fOwner->fLink->Attach<BPoint>(controlPoints[1]);
+	fOwner->fLink->Attach<BPoint>(controlPoints[2]);
+	fOwner->fLink->Attach<BPoint>(controlPoints[3]);
+	fOwner->fLink->Attach<gradient_type>(gradient.Type());
+	fOwner->fLink->AttachGradient(gradient);
+	
+	_FlushIfNotInTransaction();
+}
+
+
 void
 BView::StrokePolygon(const BPolygon *polygon, bool closed, ::pattern pattern)
 {
@@ -2761,6 +2842,33 @@ BView::FillPolygon(const BPolygon *polygon, ::pattern pattern)
 }
 
 
+void
+BView::FillPolygon(const BPolygon *polygon, const BGradient& gradient)
+{
+	if (polygon == NULL
+		|| polygon->fCount <= 2
+		|| fOwner == NULL)
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	
+	if (fOwner->fLink->StartMessage(AS_FILL_POLYGON_GRADIENT,
+									polygon->fCount * sizeof(BPoint)
+									+ sizeof(BRect) + sizeof(int32)) == B_OK) {
+		fOwner->fLink->Attach<BRect>(polygon->Frame());
+		fOwner->fLink->Attach<int32>(polygon->fCount);
+		fOwner->fLink->Attach(polygon->fPoints,
+							  polygon->fCount * sizeof(BPoint));
+		fOwner->fLink->Attach<gradient_type>(gradient.Type());
+		fOwner->fLink->AttachGradient(gradient);
+		
+		_FlushIfNotInTransaction();
+	} else {
+		fprintf(stderr, "ERROR: Can't send polygon to app_server!\n");
+	}
+}
+
+
 void
 BView::FillPolygon(const BPoint *ptArray, int32 numPts, ::pattern pattern)
 {
@@ -2772,6 +2880,18 @@ BView::FillPolygon(const BPoint *ptArray, int32 numPts, ::pattern pattern)
 }
 
 
+void
+BView::FillPolygon(const BPoint *ptArray, int32 numPts,
+	const BGradient& gradient)
+{
+	if (!ptArray)
+		return;
+	
+	BPolygon polygon(ptArray, numPts);
+	FillPolygon(&polygon, gradient);
+}
+
+
 void
 BView::FillPolygon(const BPoint *ptArray, int32 numPts, BRect bounds,
 	pattern p)
@@ -2786,6 +2906,20 @@ BView::FillPolygon(const BPoint *ptArray, int32 numPts, BRect bounds,
 }
 
 
+void
+BView::FillPolygon(const BPoint *ptArray, int32 numPts, BRect bounds,
+	const BGradient& gradient)
+{
+	if (!ptArray)
+		return;
+	
+	BPolygon polygon(ptArray, numPts);
+	
+	polygon.MapTo(polygon.Frame(), bounds);
+	FillPolygon(&polygon, gradient);
+}
+
+
 void
 BView::StrokeRect(BRect rect, ::pattern pattern)
 {
@@ -2823,6 +2957,28 @@ BView::FillRect(BRect rect, ::pattern pattern)
 }
 
 
+void
+BView::FillRect(BRect rect, const BGradient& gradient)
+{
+	if (fOwner == NULL)
+		return;
+	
+	// NOTE: ensuring compatibility with R5,
+	// invalid rects are not filled, they are stroked though!
+	if (!rect.IsValid())
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	
+	fOwner->fLink->StartMessage(AS_FILL_RECT_GRADIENT);
+	fOwner->fLink->Attach<BRect>(rect);
+	fOwner->fLink->Attach<gradient_type>(gradient.Type());
+	fOwner->fLink->AttachGradient(gradient);
+	
+	_FlushIfNotInTransaction();
+}
+
+
 void
 BView::StrokeRoundRect(BRect rect, float xRadius, float yRadius,
 	::pattern pattern)
@@ -2862,6 +3018,26 @@ BView::FillRoundRect(BRect rect, float xRadius, float yRadius,
 }
 
 
+void
+BView::FillRoundRect(BRect rect, float xRadius, float yRadius,
+	const BGradient& gradient)
+{
+	if (fOwner == NULL)
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	
+	fOwner->fLink->StartMessage(AS_FILL_ROUNDRECT_GRADIENT);
+	fOwner->fLink->Attach<BRect>(rect);
+	fOwner->fLink->Attach<float>(xRadius);
+	fOwner->fLink->Attach<float>(yRadius);
+	fOwner->fLink->Attach<gradient_type>(gradient.Type());
+	fOwner->fLink->AttachGradient(gradient);
+	
+	_FlushIfNotInTransaction();
+}
+
+
 void
 BView::FillRegion(BRegion *region, ::pattern pattern)
 {
@@ -2879,6 +3055,23 @@ BView::FillRegion(BRegion *region, ::pattern pattern)
 }
 
 
+void
+BView::FillRegion(BRegion *region, const BGradient& gradient)
+{
+	if (region == NULL || fOwner == NULL)
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	
+	fOwner->fLink->StartMessage(AS_FILL_REGION_GRADIENT);
+	fOwner->fLink->AttachRegion(*region);
+	fOwner->fLink->Attach<gradient_type>(gradient.Type());
+	fOwner->fLink->AttachGradient(gradient);
+	
+	_FlushIfNotInTransaction();
+}
+
+
 void
 BView::StrokeTriangle(BPoint pt1, BPoint pt2, BPoint pt3, BRect bounds,
 	::pattern pattern)
@@ -2978,6 +3171,46 @@ BView::FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3, pattern p)
 }
 
 
+void
+BView::FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
+	const BGradient& gradient)
+{
+	if (fOwner) {
+		// we construct the smallest rectangle that contains the 3 points
+		// for the 1st point
+		BRect bounds(pt1, pt1);
+		
+		// for the 2nd point
+		if (pt2.x < bounds.left)
+			bounds.left = pt2.x;
+		
+		if (pt2.y < bounds.top)
+			bounds.top = pt2.y;
+		
+		if (pt2.x > bounds.right)
+			bounds.right = pt2.x;
+		
+		if (pt2.y > bounds.bottom)
+			bounds.bottom = pt2.y;
+		
+		// for the 3rd point
+		if (pt3.x < bounds.left)
+			bounds.left = pt3.x;
+		
+		if (pt3.y < bounds.top)
+			bounds.top = pt3.y;
+		
+		if (pt3.x > bounds.right)
+			bounds.right = pt3.x;
+		
+		if (pt3.y > bounds.bottom)
+			bounds.bottom = pt3.y;
+		
+		FillTriangle(pt1, pt2, pt3, bounds, gradient);
+	}
+}
+
+
 void
 BView::FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
 	BRect bounds, ::pattern pattern)
@@ -2998,6 +3231,26 @@ BView::FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
 }
 
 
+void
+BView::FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3,
+	BRect bounds, const BGradient& gradient)
+{
+	if (fOwner == NULL)
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	fOwner->fLink->StartMessage(AS_FILL_TRIANGLE_GRADIENT);
+	fOwner->fLink->Attach<BPoint>(pt1);
+	fOwner->fLink->Attach<BPoint>(pt2);
+	fOwner->fLink->Attach<BPoint>(pt3);
+	fOwner->fLink->Attach<BRect>(bounds);
+	fOwner->fLink->Attach<gradient_type>(gradient.Type());
+	fOwner->fLink->AttachGradient(gradient);
+	
+	_FlushIfNotInTransaction();
+}
+
+
 void
 BView::StrokeLine(BPoint toPt, pattern p)
 {
@@ -3073,6 +3326,31 @@ BView::FillShape(BShape *shape, ::pattern pattern)
 }
 
 
+void
+BView::FillShape(BShape *shape, const BGradient& gradient)
+{
+	if (shape == NULL || fOwner == NULL)
+		return;
+	
+	shape_data *sd = (shape_data *)(shape->fPrivateData);
+	if (sd->opCount == 0 || sd->ptCount == 0)
+		return;
+	
+	_CheckLockAndSwitchCurrent();
+	
+	fOwner->fLink->StartMessage(AS_FILL_SHAPE_GRADIENT);
+	fOwner->fLink->Attach<BRect>(shape->Bounds());
+	fOwner->fLink->Attach<int32>(sd->opCount);
+	fOwner->fLink->Attach<int32>(sd->ptCount);
+	fOwner->fLink->Attach(sd->opList, sd->opCount * sizeof(int32));
+	fOwner->fLink->Attach(sd->ptList, sd->ptCount * sizeof(BPoint));
+	fOwner->fLink->Attach<gradient_type>(gradient.Type());
+	fOwner->fLink->AttachGradient(gradient);
+	
+	_FlushIfNotInTransaction();
+}
+
+
 void
 BView::BeginLineArray(int32 count)
 {
@@ -5170,5 +5448,3 @@ BView::_PrintTree()
 		}
 	}
 }
-
-

src/libs/icon/IconRenderer.cpp

@@ -17,7 +17,7 @@
 #include <agg_span_gradient.h>
 #include <agg_span_interpolator_linear.h>
 
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Icon.h"
 #include "Shape.h"
 #include "ShapeContainer.h"

src/libs/icon/Jamfile

@@ -36,7 +36,7 @@ StaticLibrary libicon.a :
 	VectorPath.cpp
 
 	# style
-	Gradient.cpp
+	GradientTransformable.cpp
 	Style.cpp
 	StyleContainer.cpp
 

src/libs/icon/flat_icon/FlatIconImporter.cpp

@@ -19,7 +19,7 @@
 #include "AutoDeleter.h"
 #include "ContourTransformer.h"
 #include "FlatIconFormat.h"
-#include "Gradient.h"
+#include "GradientTransformable.h"
 #include "Icon.h"
 #include "LittleEndianBuffer.h"
 #include "PathCommandQueue.h"
@@ -221,7 +221,7 @@ _ReadGradientStyle(LittleEndianBuffer& buffer)
 	Gradient gradient(true);
 		// empty gradient
 
-	gradient.SetType((gradient_type)gradientType);
+	gradient.SetType((gradients_type)gradientType);
 	// TODO: support more stuff with flags
 	// ("inherits transformation" and so on)
 	if (gradientFlags & GRADIENT_FLAG_TRANSFORM) {

src/libs/icon/style/GradientTransformable.cpp

@@ -6,7 +6,7 @@
  *		Stephan Aßmus <superstippi@gmx.de>
  */
 
-#include "Gradient.h"
+#include "GradientTransformable.h"
 
 #include <math.h>
 #include <stdio.h>
@@ -17,59 +17,6 @@
 #  include "support.h"
 #endif
 
-// constructor
-color_step::color_step(const rgb_color c, float o)
-{
-	color.red = c.red;
-	color.green = c.green;
-	color.blue = c.blue;
-	color.alpha = c.alpha;
-	offset = o;
-}
-
-// constructor
-color_step::color_step(uint8 r, uint8 g, uint8 b, uint8 a, float o)
-{
-	color.red = r;
-	color.green = g;
-	color.blue = b;
-	color.alpha = a;
-	offset = o;
-}
-
-// constructor
-color_step::color_step(const color_step& other)
-{
-	color.red = other.color.red;
-	color.green = other.color.green;
-	color.blue = other.color.blue;
-	color.alpha = other.color.alpha;
-	offset = other.offset;
-}
-
-// constructor
-color_step::color_step()
-{
-	color.red = 0;
-	color.green = 0;
-	color.blue = 0;
-	color.alpha = 255;
-	offset = 0;
-}
-
-// operator!=
-bool
-color_step::operator!=(const color_step& other) const
-{
-	return color.red != other.color.red ||
-		   color.green != other.color.green ||
-		   color.blue != other.color.blue ||
-		   color.alpha != other.color.alpha ||
-		   offset != other.offset;
-}
-
-// #pragma mark -
-
 // constructor
 Gradient::Gradient(bool empty)
 #ifdef ICON_O_MATIC
@@ -398,7 +345,7 @@ Gradient::ColorAtFast(int32 index) const
 
 // SetType
 void
-Gradient::SetType(gradient_type type)
+Gradient::SetType(gradients_type type)
 {
 	if (fType != type) {
 		fType = type;
@@ -575,7 +522,7 @@ Gradient::FitToBounds(const BRect& bounds)
 
 // string_for_type
 static const char*
-string_for_type(gradient_type type)
+string_for_type(gradients_type type)
 {
 	switch (type) {
 		case GRADIENT_LINEAR:

src/libs/icon/style/GradientTransformable.h

@@ -5,8 +5,8 @@
  * Authors:
  *		Stephan Aßmus <superstippi@gmx.de>
  */
-#ifndef GRADIENT_H
-#define GRADIENT_H
+#ifndef GRADIENT_TRANSFORMABLE_H
+#define GRADIENT_TRANSFORMABLE_H
 
 
 #ifdef ICON_O_MATIC
@@ -18,39 +18,27 @@
 #include "Transformable.h"
 
 #include <GraphicsDefs.h>
+#include <Gradient.h>
 #include <List.h>
 
 class BMessage;
 
-
-namespace BPrivate {
-namespace Icon {
-
-enum gradient_type {
+enum gradients_type {
 	GRADIENT_LINEAR = 0,
 	GRADIENT_CIRCULAR,
 	GRADIENT_DIAMOND,
 	GRADIENT_CONIC,
 	GRADIENT_XY,
-	GRADIENT_SQRT_XY,
+	GRADIENT_SQRT_XY
 };
 
 enum interpolation_type {
 	INTERPOLATION_LINEAR = 0,
-	INTERPOLATION_SMOOTH,
+	INTERPOLATION_SMOOTH
 };
 
-struct color_step {
-					color_step(const rgb_color c, float o);
-					color_step(uint8 r, uint8 g, uint8 b, uint8 a, float o);
-					color_step(const color_step& other);
-					color_step();
-
-			bool	operator!=(const color_step& other) const;
-
-	rgb_color		color;
-	float			offset;
-};
+namespace BPrivate {
+namespace Icon {
 
 #ifdef ICON_O_MATIC
 class Gradient : public BArchivable,
@@ -97,8 +85,8 @@ class Gradient : public Transformable {
 			color_step*			ColorAt(int32 index) const;
 			color_step*			ColorAtFast(int32 index) const;
 
-			void				SetType(gradient_type type);
-			gradient_type		Type() const
+			void				SetType(gradients_type type);
+			gradients_type		Type() const
 									{ return fType; }
 
 			void				SetInterpolation(interpolation_type type);
@@ -122,7 +110,7 @@ class Gradient : public Transformable {
 			void				_MakeEmpty();
 
 			BList				fColors;
-			gradient_type		fType;
+			gradients_type		fType;
 			interpolation_type	fInterpolation;
 			bool				fInheritTransformation;
 };
@@ -130,4 +118,4 @@ class Gradient : public Transformable {
 }	// namespace Icon
 }	// namespace BPrivate
 
-#endif	// GRADIENT_H
+#endif	// GRADIENT_TRANSFORMABLE_H

src/libs/icon/style/Style.cpp

@@ -18,7 +18,7 @@
 # define kWhite (rgb_color){ 255, 255, 255, 255 }
 #endif // ICON_O_MATIC
 
-#include "Gradient.h"
+#include "GradientTransformable.h"
 
 using std::nothrow;
 

src/servers/app/Desktop.cpp

@@ -976,7 +976,7 @@ Desktop::_SetWorkspace(int32 index)
 			// is up-to-date
 			if (window->Frame().LeftTop() != position) {
 				BPoint offset = position - window->Frame().LeftTop();
-				window->MoveBy(offset.x, offset.y);
+				window->MoveBy((int32)offset.x, (int32)offset.y);
 			}
 			continue;
 		}
@@ -1822,7 +1822,7 @@ Desktop::MoveWindowBy(Window* window, float x, float y, int32 workspace)
 			window->Anchor(workspace).position += BPoint(x, y);
 			_WindowChanged(window);
 		} else
-			window->MoveBy(x, y);
+			window->MoveBy((int32)x, (int32)y);
 
 		UnlockAllWindows();
 		return;
@@ -1834,7 +1834,7 @@ Desktop::MoveWindowBy(Window* window, float x, float y, int32 workspace)
 	// no more drawing for DirectWindows
 	window->ServerWindow()->HandleDirectConnection(B_DIRECT_STOP);
 
-	window->MoveBy(x, y);
+	window->MoveBy((int32)x, (int32)y);
 
 	BRegion background;
 	_RebuildClippingForAllWindows(background);
@@ -1842,7 +1842,7 @@ Desktop::MoveWindowBy(Window* window, float x, float y, int32 workspace)
 	// construct the region that is possible to be blitted
 	// to move the contents of the window
 	BRegion copyRegion(window->VisibleRegion());
-	copyRegion.OffsetBy(-x, -y);
+	copyRegion.OffsetBy((int32)-x, (int32)-y);
 	copyRegion.IntersectWith(&newDirtyRegion);
 		// newDirtyRegion == the windows old visible region
 
@@ -1850,7 +1850,7 @@ Desktop::MoveWindowBy(Window* window, float x, float y, int32 workspace)
 	// moved into the dirty region (for now)
 	newDirtyRegion.Include(&window->VisibleRegion());
 
-	GetDrawingEngine()->CopyRegion(&copyRegion, x, y);
+	GetDrawingEngine()->CopyRegion(&copyRegion, (int32)x, (int32)y);
 
 	// allow DirectWindows to draw again after the visual
 	// content is at the new location
@@ -1858,7 +1858,7 @@ Desktop::MoveWindowBy(Window* window, float x, float y, int32 workspace)
 
 	// in the dirty region, exclude the parts that we
 	// could move by blitting
-	copyRegion.OffsetBy(x, y);
+	copyRegion.OffsetBy((int32)x, (int32)y);
 	newDirtyRegion.Exclude(&copyRegion);
 
 	MarkDirty(newDirtyRegion);
@@ -1876,7 +1876,7 @@ Desktop::ResizeWindowBy(Window* window, float x, float y)
 		return;
 
 	if (!window->IsVisible()) {
-		window->ResizeBy(x, y, NULL);
+		window->ResizeBy((int32)x, (int32)y, NULL);
 		UnlockAllWindows();
 		return;
 	}
@@ -1888,7 +1888,7 @@ Desktop::ResizeWindowBy(Window* window, float x, float y)
 	// it is shrunk in "previouslyOccupiedRegion"
 	BRegion previouslyOccupiedRegion(window->VisibleRegion());
 
-	window->ResizeBy(x, y, &newDirtyRegion);
+	window->ResizeBy((int32)x, (int32)y, &newDirtyRegion);
 
 	BRegion background;
 	_RebuildClippingForAllWindows(background);

src/servers/app/ProfileMessageSupport.cpp

@@ -202,14 +202,23 @@ string_for_message_code(uint32 code, BString& string)
 		case AS_STROKE_TRIANGLE: string = "AS_STROKE_TRIANGLE"; break;
 
 		case AS_FILL_ARC: string = "AS_FILL_ARC"; break;
+		case AS_FILL_ARC_GRADIENT: string = "AS_FILL_ARC_GRADIENT"; break;
 		case AS_FILL_BEZIER: string = "AS_FILL_BEZIER"; break;
+		case AS_FILL_BEZIER_GRADIENT: string = "AS_FILL_BEZIER_GRADIENT"; break;
 		case AS_FILL_ELLIPSE: string = "AS_FILL_ELLIPSE"; break;
+		case AS_FILL_ELLIPSE_GRADIENT: string = "AS_FILL_ELLIPSE_GRADIENT"; break;
 		case AS_FILL_POLYGON: string = "AS_FILL_POLYGON"; break;
+		case AS_FILL_POLYGON_GRADIENT: string = "AS_FILL_POLYGON_GRADIENT"; break;
 		case AS_FILL_RECT: string = "AS_FILL_RECT"; break;
+		case AS_FILL_RECT_GRADIENT: string = "AS_FILL_RECT_GRADIENT"; break;
 		case AS_FILL_REGION: string = "AS_FILL_REGION"; break;
+		case AS_FILL_REGION_GRADIENT: string = "AS_FILL_REGION_GRADIENT"; break;
 		case AS_FILL_ROUNDRECT: string = "AS_FILL_ROUNDRECT"; break;
+		case AS_FILL_ROUNDRECT_GRADIENT: string = "AS_FILL_ROUNDRECT_GRADIENT"; break;
 		case AS_FILL_SHAPE: string = "AS_FILL_SHAPE"; break;
+		case AS_FILL_SHAPE_GRADIENT: string = "AS_FILL_SHAPE_GRADIENT"; break;
 		case AS_FILL_TRIANGLE: string = "AS_FILL_TRIANGLE"; break;
+		case AS_FILL_TRIANGLE_GRADIENT: string = "AS_FILL_TRIANGLE_GRADIENT"; break;
 
 		case AS_DRAW_STRING: string = "AS_DRAW_STRING"; break;
 		case AS_DRAW_STRING_WITH_DELTA: string = "AS_DRAW_STRING_WITH_DELTA"; break;

src/servers/app/ServerWindow.cpp

@@ -51,6 +51,11 @@
 #include <DirectWindow.h>
 #include <TokenSpace.h>
 #include <View.h>
+#include <GradientLinear.h>
+#include <GradientRadial.h>
+#include <GradientRadialFocus.h>
+#include <GradientDiamond.h>
+#include <GradientConic.h>
 
 #include <new>
 
@@ -58,6 +63,7 @@ using std::nothrow;
 
 //#define TRACE_SERVER_WINDOW
 //#define TRACE_SERVER_WINDOW_MESSAGES
+//#define TRACE_SERVER_GRADIENTS
 //#define PROFILE_MESSAGE_LOOP
 
 
@@ -75,6 +81,13 @@ using std::nothrow;
 #	define DTRACE(x) ;
 #endif
 
+#ifdef TRACE_SERVER_GRADIENTS
+#	include <OS.h>
+#	define GTRACE(x) debug_printf x
+#else
+#	define GTRACE(x) ;
+#endif
+
 #ifdef PROFILE_MESSAGE_LOOP
 struct profile { int32 code; int32 count; bigtime_t time; };
 static profile sMessageProfile[AS_LAST_CODE];
@@ -2120,6 +2133,23 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 			drawingEngine->FillRect(rect);
 			break;
 		}
+		case AS_FILL_RECT_GRADIENT:
+		{
+			GTRACE(("ServerWindow %s: Message AS_FILL_RECT_GRADIENT\n", Title()));
+
+			BRect rect;
+			link.Read<BRect>(&rect);
+			gradient_type gradientType;
+			link.Read<gradient_type>(&gradientType);
+			BGradient* gradient = _GetNewGradientForType(gradientType);
+			if (gradient) {
+				link.ReadGradient(gradient);
+				fCurrentView->ConvertToScreenForDrawing(&rect);
+				fCurrentView->ConvertToScreenForDrawing(gradient);
+				drawingEngine->FillRectGradient(rect, *gradient);
+			}
+			break;
+		}
 		case AS_VIEW_DRAW_BITMAP:
 		{
 			DTRACE(("ServerWindow %s: Message AS_VIEW_DRAW_BITMAP: View name: %s\n", fTitle, fCurrentView->Name()));
@@ -2159,6 +2189,26 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 			drawingEngine->DrawArc(r, angle, span, code == AS_FILL_ARC);
 			break;
 		}
+		case AS_FILL_ARC_GRADIENT:
+		{
+			GTRACE(("ServerWindow %s: Message AS_FILL_ARC_GRADIENT\n", Title()));
+
+			float angle, span;
+			BRect r;
+			link.Read<BRect>(&r);
+			link.Read<float>(&angle);
+			link.Read<float>(&span);
+			gradient_type gradientType;
+			link.Read<gradient_type>(&gradientType);
+			BGradient* gradient = _GetNewGradientForType(gradientType);
+			if (gradient) {
+				link.ReadGradient(gradient);			
+				fCurrentView->ConvertToScreenForDrawing(&r);
+				fCurrentView->ConvertToScreenForDrawing(gradient);
+				drawingEngine->FillArcGradient(r, angle, span, *gradient);
+			}
+			break;
+		}
 		case AS_STROKE_BEZIER:
 		case AS_FILL_BEZIER:
 		{
@@ -2173,6 +2223,25 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 			drawingEngine->DrawBezier(pts, code == AS_FILL_BEZIER);
 			break;
 		}
+		case AS_FILL_BEZIER_GRADIENT:
+		{
+			GTRACE(("ServerWindow %s: Message AS_FILL_BEZIER_GRADIENT\n", Title()));
+			
+			BPoint pts[4];
+			for (int32 i = 0; i < 4; i++) {
+				link.Read<BPoint>(&(pts[i]));
+				fCurrentView->ConvertToScreenForDrawing(&pts[i]);
+			}
+			gradient_type gradientType;
+			link.Read<gradient_type>(&gradientType);
+			BGradient* gradient = _GetNewGradientForType(gradientType);
+			if (gradient) {
+				link.ReadGradient(gradient);			
+				fCurrentView->ConvertToScreenForDrawing(gradient);
+				drawingEngine->FillBezierGradient(pts, *gradient);
+			}
+			break;
+		}
 		case AS_STROKE_ELLIPSE:
 		case AS_FILL_ELLIPSE:
 		{
@@ -2185,6 +2254,23 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 			drawingEngine->DrawEllipse(rect, code == AS_FILL_ELLIPSE);
 			break;
 		}
+		case AS_FILL_ELLIPSE_GRADIENT:
+		{
+			GTRACE(("ServerWindow %s: Message AS_FILL_ELLIPSE_GRADIENT\n", Title()));
+			
+			BRect rect;
+			link.Read<BRect>(&rect);
+			gradient_type gradientType;
+			link.Read<gradient_type>(&gradientType);
+			BGradient* gradient = _GetNewGradientForType(gradientType);
+			if (gradient) {
+				link.ReadGradient(gradient);			
+				fCurrentView->ConvertToScreenForDrawing(&rect);
+				fCurrentView->ConvertToScreenForDrawing(gradient);
+				drawingEngine->FillEllipseGradient(rect, *gradient);
+			}
+			break;
+		}
 		case AS_STROKE_ROUNDRECT:
 		case AS_FILL_ROUNDRECT:
 		{
@@ -2200,6 +2286,26 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 			drawingEngine->DrawRoundRect(rect, xrad, yrad, code == AS_FILL_ROUNDRECT);
 			break;
 		}
+		case AS_FILL_ROUNDRECT_GRADIENT:
+		{
+			GTRACE(("ServerWindow %s: Message AS_FILL_ROUNDRECT_GRADIENT\n", Title()));
+			
+			BRect rect;
+			float xrad,yrad;
+			link.Read<BRect>(&rect);
+			link.Read<float>(&xrad);
+			link.Read<float>(&yrad);
+			gradient_type gradientType;
+			link.Read<gradient_type>(&gradientType);
+			BGradient* gradient = _GetNewGradientForType(gradientType);
+			if (gradient) {
+				link.ReadGradient(gradient);
+				fCurrentView->ConvertToScreenForDrawing(&rect);
+				fCurrentView->ConvertToScreenForDrawing(gradient);
+				drawingEngine->FillRoundRectGradient(rect, xrad, yrad, *gradient);
+			}
+			break;
+		}
 		case AS_STROKE_TRIANGLE:
 		case AS_FILL_TRIANGLE:
 		{
@@ -2219,6 +2325,28 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 			drawingEngine->DrawTriangle(pts, rect, code == AS_FILL_TRIANGLE);
 			break;
 		}
+		case AS_FILL_TRIANGLE_GRADIENT:
+		{
+			DTRACE(("ServerWindow %s: Message AS_FILL_TRIANGLE_GRADIENT\n", Title()));
+			
+			BPoint pts[3];
+			BRect rect;
+			for (int32 i = 0; i < 3; i++) {
+				link.Read<BPoint>(&(pts[i]));
+				fCurrentView->ConvertToScreenForDrawing(&pts[i]);
+			}
+			link.Read<BRect>(&rect);
+			gradient_type gradientType;
+			link.Read<gradient_type>(&gradientType);
+			BGradient* gradient = _GetNewGradientForType(gradientType);
+			if (gradient) {
+				link.ReadGradient(gradient);			
+				fCurrentView->ConvertToScreenForDrawing(&rect);
+				fCurrentView->ConvertToScreenForDrawing(gradient);
+				drawingEngine->FillTriangleGradient(pts, rect, *gradient);
+			}
+			break;
+		}
 		case AS_STROKE_POLYGON:
 		case AS_FILL_POLYGON:
 		{
@@ -2245,6 +2373,35 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 			delete[] pointList;
 			break;
 		}
+		case AS_FILL_POLYGON_GRADIENT:
+		{
+			DTRACE(("ServerWindow %s: Message AS_FILL_POLYGON_GRADIENT\n", Title()));
+			
+			BRect polyFrame;
+			bool isClosed = true;
+			int32 pointCount;
+			link.Read<BRect>(&polyFrame);
+			link.Read<int32>(&pointCount);
+			
+			BPoint* pointList = new(nothrow) BPoint[pointCount];
+			if (link.Read(pointList, pointCount * sizeof(BPoint)) >= B_OK) {
+				gradient_type gradientType;
+				link.Read<gradient_type>(&gradientType);
+				BGradient* gradient = _GetNewGradientForType(gradientType);
+				if (gradient) {
+					link.ReadGradient(gradient);
+					for (int32 i = 0; i < pointCount; i++)
+						fCurrentView->ConvertToScreenForDrawing(&pointList[i]);
+					fCurrentView->ConvertToScreenForDrawing(&polyFrame);
+					fCurrentView->ConvertToScreenForDrawing(gradient);
+					
+					drawingEngine->FillPolygonGradient(pointList, pointCount,
+						polyFrame, *gradient, isClosed && pointCount > 2);
+				}
+			}
+			delete[] pointList;
+			break;
+		}
 		case AS_STROKE_SHAPE:
 		case AS_FILL_SHAPE:
 		{
@@ -2279,6 +2436,45 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 			delete[] ptList;
 			break;
 		}
+		case AS_FILL_SHAPE_GRADIENT:
+		{
+			DTRACE(("ServerWindow %s: Message AS_FILL_SHAPE_GRADIENT\n", Title()));
+			
+			BRect shapeFrame;
+			int32 opCount;
+			int32 ptCount;
+			
+			link.Read<BRect>(&shapeFrame);
+			link.Read<int32>(&opCount);
+			link.Read<int32>(&ptCount);
+			
+			uint32* opList = new(nothrow) uint32[opCount];
+			BPoint* ptList = new(nothrow) BPoint[ptCount];
+			if (link.Read(opList, opCount * sizeof(uint32)) >= B_OK &&
+				link.Read(ptList, ptCount * sizeof(BPoint)) >= B_OK) {
+				
+				// this might seem a bit weird, but under R5, the shapes
+				// are always offset by the current pen location
+				BPoint penLocation = fCurrentView->CurrentState()->PenLocation();
+				for (int32 i = 0; i < ptCount; i++) {
+					ptList[i] += penLocation;
+					fCurrentView->ConvertToScreenForDrawing(&ptList[i]);
+				}
+				gradient_type gradientType;
+				link.Read<gradient_type>(&gradientType);
+				BGradient* gradient = _GetNewGradientForType(gradientType);
+				if (gradient) {
+					link.ReadGradient(gradient);				
+					fCurrentView->ConvertToScreenForDrawing(gradient);
+					drawingEngine->FillShapeGradient(shapeFrame, opCount, opList,
+						ptCount, ptList, *gradient);
+				}
+			}
+			
+			delete[] opList;
+			delete[] ptList;
+			break;
+		}
 		case AS_FILL_REGION:
 		{
 			DTRACE(("ServerWindow %s: Message AS_FILL_REGION\n", Title()));
@@ -2292,6 +2488,24 @@ ServerWindow::_DispatchViewDrawingMessage(int32 code, BPrivate::LinkReceiver &li
 
 			break;
 		}
+		case AS_FILL_REGION_GRADIENT:
+		{
+			DTRACE(("ServerWindow %s: Message AS_FILL_REGION_GRADIENT\n", Title()));
+			
+			BRegion region;
+			if (link.ReadRegion(&region) < B_OK)
+				break;
+			gradient_type gradientType;
+			link.Read<gradient_type>(&gradientType);
+			BGradient* gradient = _GetNewGradientForType(gradientType);
+			if (gradient) {
+				link.ReadGradient(gradient);			
+				fCurrentView->ConvertToScreenForDrawing(&region);
+				fCurrentView->ConvertToScreenForDrawing(gradient);
+				drawingEngine->FillRegionGradient(region, *gradient);
+			}
+			break;
+		}
 		case AS_STROKE_LINEARRAY:
 		{
 			DTRACE(("ServerWindow %s: Message AS_STROKE_LINEARRAY\n", Title()));
@@ -3277,3 +3491,30 @@ ServerWindow::PictureToRegion(ServerPicture *picture, BRegion &region,
 	region.MakeEmpty();
 	return B_ERROR;
 }
+
+
+BGradient*
+ServerWindow::_GetNewGradientForType(gradient_type type)
+{
+	switch (type) {
+		case B_GRADIENT_LINEAR: {
+			return new (std::nothrow) BGradientLinear();
+		}
+		case B_GRADIENT_RADIAL: {
+			return new (std::nothrow) BGradientRadial();
+		}
+		case B_GRADIENT_RADIAL_FOCUS: {
+			return new (std::nothrow) BGradientRadialFocus();
+		}
+		case B_GRADIENT_DIAMOND: {
+			return new (std::nothrow) BGradientDiamond();
+		}
+		case B_GRADIENT_CONIC: {
+			return new (std::nothrow) BGradientConic();
+		}
+		case B_GRADIENT_NONE: {
+			return new (std::nothrow) BGradient();
+		}			
+	}
+	return NULL;
+}

src/servers/app/ServerWindow.h

@@ -130,6 +130,8 @@ private:
 			void				_UpdateCurrentDrawingRegion();
 
 			bool				_MessageNeedsAllWindowsLocked(uint32 code) const;
+	
+			BGradient*			_GetNewGradientForType(gradient_type type);
 
 			// TODO: Move me elsewhere
 			status_t			PictureToRegion(ServerPicture *picture,

src/servers/app/View.cpp

@@ -32,6 +32,12 @@
 #include <View.h> // for resize modes
 #include <WindowPrivate.h>
 
+#include <GradientLinear.h>
+#include <GradientRadial.h>
+#include <GradientRadialFocus.h>
+#include <GradientDiamond.h>
+#include <GradientConic.h>
+
 #include <stdio.h>
 
 #include <new>
@@ -793,7 +799,7 @@ View::ConvertToScreenForDrawing(BRect* rect) const
 }
 
 
-//! converts a region from local *drawing* to screen coordinate system 
+//! converts a region from local *drawing* to screen coordinate system
 void
 View::ConvertToScreenForDrawing(BRegion* region) const
 {
@@ -804,6 +810,71 @@ View::ConvertToScreenForDrawing(BRegion* region) const
 }
 
 
+//! converts a gradient from local *drawing* to screen coordinate system
+void
+View::ConvertToScreenForDrawing(BGradient* gradient) const
+{
+	switch(gradient->Type()) {
+		case B_GRADIENT_LINEAR: {
+			BGradientLinear* linear = (BGradientLinear*) gradient;
+			BPoint start = linear->Start();
+			BPoint end = linear->End();
+			fDrawState->Transform(&start);
+			ConvertToScreen(&start);
+			fDrawState->Transform(&end);
+			ConvertToScreen(&end);
+			linear->SetStart(start);
+			linear->SetEnd(end);
+			linear->SortColorStepsByOffset();
+			break;
+		}
+		case B_GRADIENT_RADIAL: {
+			BGradientRadial* radial = (BGradientRadial*) gradient;
+			BPoint center = radial->Center();
+			fDrawState->Transform(&center);
+			ConvertToScreen(&center);
+			radial->SetCenter(center);
+			radial->SortColorStepsByOffset();
+			break;
+		}
+		case B_GRADIENT_RADIAL_FOCUS: {
+			BGradientRadialFocus* radialFocus = (BGradientRadialFocus*) gradient;
+			BPoint center = radialFocus->Center();
+			BPoint focal = radialFocus->Focal();
+			fDrawState->Transform(&center);
+			ConvertToScreen(&center);
+			fDrawState->Transform(&focal);
+			ConvertToScreen(&focal);
+			radialFocus->SetCenter(center);
+			radialFocus->SetFocal(focal);
+			radialFocus->SortColorStepsByOffset();
+			break;
+		}
+		case B_GRADIENT_DIAMOND: {
+			BGradientDiamond* diamond = (BGradientDiamond*) gradient;
+			BPoint center = diamond->Center();
+			fDrawState->Transform(&center);
+			ConvertToScreen(&center);
+			diamond->SetCenter(center);
+			diamond->SortColorStepsByOffset();
+			break;
+		}
+		case B_GRADIENT_CONIC: {
+			BGradientConic* conic = (BGradientConic*) gradient;
+			BPoint center = conic->Center();
+			fDrawState->Transform(&center);
+			ConvertToScreen(&center);
+			conic->SetCenter(center);
+			conic->SortColorStepsByOffset();
+			break;
+		}
+		case B_GRADIENT_NONE: {
+			break;
+		}
+	}
+}
+
+
 //! converts points from local *drawing* to screen coordinate system 
 void
 View::ConvertToScreenForDrawing(BPoint* dst, const BPoint* src, int32 num) const

src/servers/app/View.h

@@ -34,6 +34,7 @@ class Window;
 class ServerBitmap;
 class ServerCursor;
 class ServerPicture;
+class BGradient;
 
 class View {
  public:
@@ -133,6 +134,7 @@ class View {
 			void			ConvertToScreenForDrawing(BPoint* point) const;
 			void			ConvertToScreenForDrawing(BRect* rect) const;
 			void			ConvertToScreenForDrawing(BRegion* region) const;
+			void			ConvertToScreenForDrawing(BGradient* gradient) const;
 
 			void			ConvertToScreenForDrawing(BPoint* dst, const BPoint* src, int32 num) const;
 			void			ConvertToScreenForDrawing(BRect* dst, const BRect* src, int32 num) const;

src/servers/app/drawing/DrawingEngine.cpp

@@ -610,6 +610,34 @@ DrawingEngine::DrawArc(BRect r, const float& angle, const float& span,
 	}
 }
 
+// FillArcGradient
+void
+DrawingEngine::FillArcGradient(BRect r, const float& angle, const float& span,
+	const BGradient& gradient)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	make_rect_valid(r);
+	fPainter->AlignEllipseRect(&r, true);
+	BRect clipped(r);
+	
+	clipped = fPainter->ClipRect(r);
+	
+	if (clipped.IsValid()) {
+		AutoFloatingOverlaysHider _(fGraphicsCard, clipped);
+		
+		float xRadius = r.Width() / 2.0;
+		float yRadius = r.Height() / 2.0;
+		BPoint center(r.left + xRadius,
+					  r.top + yRadius);
+		
+		fPainter->FillArcGradient(center, xRadius, yRadius, angle, span,
+								  gradient);
+
+		_CopyToFront(clipped);
+	}
+}
+
 // DrawBezier
 void
 DrawingEngine::DrawBezier(BPoint* pts, bool filled)
@@ -624,6 +652,20 @@ DrawingEngine::DrawBezier(BPoint* pts, bool filled)
 	_CopyToFront(touched);
 }
 
+// FillBezierGradient
+void
+DrawingEngine::FillBezierGradient(BPoint* pts, const BGradient& gradient)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	// TODO: figure out bounds and hide cursor depending on that
+	AutoFloatingOverlaysHider _(fGraphicsCard);
+	
+	BRect touched = fPainter->FillBezierGradient(pts, gradient);
+	
+	_CopyToFront(touched);
+}
+
 // DrawEllipse
 void
 DrawingEngine::DrawEllipse(BRect r, bool filled)
@@ -653,6 +695,32 @@ DrawingEngine::DrawEllipse(BRect r, bool filled)
 	}
 }
 
+// FillEllipseGradient
+void
+DrawingEngine::FillEllipseGradient(BRect r, const BGradient& gradient)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	make_rect_valid(r);
+	BRect clipped = r;
+	fPainter->AlignEllipseRect(&clipped, true);
+	
+	clipped.left = floorf(clipped.left);
+	clipped.top = floorf(clipped.top);
+	clipped.right = ceilf(clipped.right);
+	clipped.bottom = ceilf(clipped.bottom);
+	
+	clipped = fPainter->ClipRect(clipped);
+	
+	if (clipped.IsValid()) {
+		AutoFloatingOverlaysHider _(fGraphicsCard, clipped);
+		
+		fPainter->FillEllipseGradient(r, gradient);
+		
+		_CopyToFront(clipped);
+	}
+}
+
 // DrawPolygon
 void
 DrawingEngine::DrawPolygon(BPoint* ptlist, int32 numpts, BRect bounds,
@@ -673,6 +741,24 @@ DrawingEngine::DrawPolygon(BPoint* ptlist, int32 numpts, BRect bounds,
 	}
 }
 
+// FillPolygonGradient
+void
+DrawingEngine::FillPolygonGradient(BPoint* ptlist, int32 numpts, BRect bounds,
+	const BGradient& gradient, bool closed)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	make_rect_valid(bounds);
+	bounds = fPainter->ClipRect(bounds);
+	if (bounds.IsValid()) {
+		AutoFloatingOverlaysHider _(fGraphicsCard, bounds);
+		
+		fPainter->FillPolygonGradient(ptlist, numpts, gradient, closed);
+		
+		_CopyToFront(bounds);
+	}
+}
+
 // #pragma mark - rgb_color
 
 void
@@ -876,6 +962,25 @@ DrawingEngine::FillRect(BRect r)
 }
 
 
+void
+DrawingEngine::FillRectGradient(BRect r, const BGradient& gradient)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	make_rect_valid(r);
+	r = fPainter->AlignAndClipRect(r);
+	if (!r.IsValid())
+		return;
+	
+	AutoFloatingOverlaysHider overlaysHider(fGraphicsCard, r);
+	
+	fPainter->FillRectGradient(r, gradient);
+	
+	if (fGraphicsCard->IsDoubleBuffered())
+		_CopyToFront(r);
+}
+
+
 void
 DrawingEngine::FillRegion(BRegion& r)
 {
@@ -930,6 +1035,28 @@ DrawingEngine::FillRegion(BRegion& r)
 }
 
 
+void
+DrawingEngine::FillRegionGradient(BRegion& r, const BGradient& gradient)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	BRect clipped = fPainter->ClipRect(r.Frame());
+	if (!clipped.IsValid())
+		return;
+	
+	AutoFloatingOverlaysHider overlaysHider(fGraphicsCard, clipped);
+	
+	BRect touched = fPainter->FillRectGradient(r.RectAt(0), gradient);
+		
+	int32 count = r.CountRects();
+	for (int32 i = 1; i < count; i++)
+		touched = touched | fPainter->FillRectGradient(r.RectAt(i), gradient);
+	
+	if (fGraphicsCard->IsDoubleBuffered())
+		_CopyToFront(r.Frame());
+}
+
+
 void
 DrawingEngine::DrawRoundRect(BRect r, float xrad, float yrad, bool filled)
 {
@@ -956,6 +1083,32 @@ DrawingEngine::DrawRoundRect(BRect r, float xrad, float yrad, bool filled)
 }
 
 
+void
+DrawingEngine::FillRoundRectGradient(BRect r, float xrad, float yrad,
+	const BGradient& gradient)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	// NOTE: the stroke does not extend past "r" in R5,
+	// though I consider this unexpected behaviour.
+	make_rect_valid(r);
+	BRect clipped = fPainter->ClipRect(r);
+	
+	clipped.left = floorf(clipped.left);
+	clipped.top = floorf(clipped.top);
+	clipped.right = ceilf(clipped.right);
+	clipped.bottom = ceilf(clipped.bottom);
+	
+	if (clipped.IsValid()) {
+		AutoFloatingOverlaysHider _(fGraphicsCard, clipped);
+		
+		BRect touched = fPainter->FillRoundRectGradient(r, xrad, yrad, gradient);
+		
+		_CopyToFront(touched);
+	}
+}
+
+
 void
 DrawingEngine::DrawShape(const BRect& bounds, int32 opCount,
 	const uint32* opList, int32 ptCount, const BPoint* ptList, bool filled)
@@ -974,6 +1127,24 @@ DrawingEngine::DrawShape(const BRect& bounds, int32 opCount,
 }
 
 
+void
+DrawingEngine::FillShapeGradient(const BRect& bounds, int32 opCount,
+	const uint32* opList, int32 ptCount, const BPoint* ptList,
+	const BGradient& gradient)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	// NOTE: hides cursor regardless of if and where
+	// shape is drawn on screen, TODO: optimize
+	AutoFloatingOverlaysHider _(fGraphicsCard);
+	
+	BRect touched = fPainter->FillShapeGradient(opCount, opList, ptCount,
+												ptList, gradient);
+	
+	_CopyToFront(touched);
+}
+
+
 void
 DrawingEngine::DrawTriangle(BPoint* pts, const BRect& bounds, bool filled)
 {
@@ -995,6 +1166,23 @@ DrawingEngine::DrawTriangle(BPoint* pts, const BRect& bounds, bool filled)
 	}
 }
 
+void
+DrawingEngine::FillTriangleGradient(BPoint* pts, const BRect& bounds,
+	const BGradient& gradient)
+{
+	CRASH_IF_NOT_LOCKED
+	
+	BRect clipped(bounds);
+	clipped = fPainter->ClipRect(clipped);
+	if (clipped.IsValid()) {
+		AutoFloatingOverlaysHider _(fGraphicsCard, clipped);
+		
+		fPainter->FillTriangleGradient(pts[0], pts[1], pts[2], gradient);
+		
+		_CopyToFront(clipped);
+	}
+}
+
 // StrokeLine
 void
 DrawingEngine::StrokeLine(const BPoint &start, const BPoint &end)

src/servers/app/drawing/DrawingEngine.h

@@ -15,6 +15,7 @@
 #include <Font.h>
 #include <Locker.h>
 #include <Point.h>
+#include <Gradient.h>
 
 #include "HWInterface.h"
 
@@ -99,13 +100,22 @@ public:
 
 			void			DrawArc(BRect r, const float& angle,
 								const float& span, bool filled);
+			void			FillArcGradient(BRect r, const float& angle,
+								const float& span, const BGradient& gradient);
 
 			void			DrawBezier(BPoint* pts, bool filled);
+			void			FillBezierGradient(BPoint* pts,
+								const BGradient& gradient);
 
 			void			DrawEllipse(BRect r, bool filled);
+			void			FillEllipseGradient(BRect r,
+								const BGradient& gradient);
 
 			void			DrawPolygon(BPoint* ptlist, int32 numpts,
 								BRect bounds, bool filled, bool closed);
+			void			FillPolygonGradient(BPoint* ptlist, int32 numpts,
+								BRect bounds, const BGradient& gradient,
+								bool closed);
 
 			// these rgb_color versions are used internally by the server
 			void			StrokePoint(const BPoint& pt,
@@ -116,19 +126,30 @@ public:
 
 			void			StrokeRect(BRect r);
 			void			FillRect(BRect r);
+			void			FillRectGradient(BRect r, const BGradient& gradient);
 
 			void			FillRegion(BRegion& r);
+			void			FillRegionGradient(BRegion& r,
+								const BGradient& gradient);
 
 			void			DrawRoundRect(BRect r, float xrad,
 								float yrad, bool filled);
+			void			FillRoundRectGradient(BRect r, float xrad,
+								float yrad, const BGradient& gradient);
 
 			void			DrawShape(const BRect& bounds,
 								int32 opcount, const uint32* oplist, 
 								int32 ptcount, const BPoint* ptlist,
 								bool filled);
-
+			void			FillShapeGradient(const BRect& bounds,
+							  int32 opcount, const uint32* oplist, 
+							  int32 ptcount, const BPoint* ptlist,
+							  const BGradient& gradient);
+	
 			void			DrawTriangle(BPoint* pts, const BRect& bounds,
 								bool filled);
+			void			FillTriangleGradient(BPoint* pts,
+								const BRect& bounds, const BGradient& gradient);
 
 			// this version used by Decorator
 			void			StrokeLine(const BPoint& start,

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

@@ -15,6 +15,11 @@
 #include <GraphicsDefs.h>
 #include <Region.h>
 #include <String.h>
+#include <GradientLinear.h>
+#include <GradientRadial.h>
+#include <GradientRadialFocus.h>
+#include <GradientDiamond.h>
+#include <GradientConic.h>
 
 #include <ShapePrivate.h>
 
@@ -52,13 +57,22 @@
 using std::nothrow;
 
 #undef TRACE
-//#define TRACE_PAINTER
+// #define TRACE_PAINTER
 #ifdef TRACE_PAINTER
 #	define TRACE(x...)		printf(x)
 #else
 #	define TRACE(x...)
 #endif
 
+//#define TRACE_GRADIENTS
+#ifdef TRACE_GRADIENTS
+#	include <OS.h>
+#	define GTRACE(x...)		debug_printf(x)
+#else
+#	define GTRACE(x...)
+#endif
+
+
 #define CHECK_CLIPPING	if (!fValidClipping) return BRect(0, 0, -1, -1);
 #define CHECK_CLIPPING_NO_RETURN	if (!fValidClipping) return;
 
@@ -492,6 +506,28 @@ Painter::FillTriangle(BPoint pt1, BPoint pt2, BPoint pt3) const
 	return _DrawTriangle(pt1, pt2, pt3, true);
 }
 
+// FillTriangleGradient
+BRect
+Painter::FillTriangleGradient(BPoint pt1, BPoint pt2, BPoint pt3,
+					  const BGradient& gradient) const
+{
+	CHECK_CLIPPING
+	
+	_Transform(&pt1);
+	_Transform(&pt2);
+	_Transform(&pt3);
+	
+	fPath.remove_all();
+	
+	fPath.move_to(pt1.x, pt1.y);
+	fPath.line_to(pt2.x, pt2.y);
+	fPath.line_to(pt3.x, pt3.y);
+	
+	fPath.close_polygon();
+	
+	return _FillPathGradient(fPath, gradient);
+}
+
 // DrawPolygon
 BRect
 Painter::DrawPolygon(BPoint* p, int32 numPts,
@@ -523,6 +559,34 @@ Painter::DrawPolygon(BPoint* p, int32 numPts,
 	return BRect(0.0, 0.0, -1.0, -1.0);
 }
 
+// FillPolygonGradient
+BRect
+Painter::FillPolygonGradient(BPoint* p, int32 numPts,
+					 const BGradient& gradient, bool closed) const
+{
+	CHECK_CLIPPING
+	
+	if (numPts > 0) {
+		
+		fPath.remove_all();
+		
+		_Transform(p);
+		fPath.move_to(p->x, p->y);
+		
+		for (int32 i = 1; i < numPts; i++) {
+			p++;
+			_Transform(p);
+			fPath.line_to(p->x, p->y);
+		}
+		
+		if (closed)
+			fPath.close_polygon();
+		
+		return _FillPathGradient(fPath, gradient);
+	}
+	return BRect(0.0, 0.0, -1.0, -1.0);
+}
+
 // DrawBezier
 BRect
 Painter::DrawBezier(BPoint* p, bool filled) const
@@ -550,6 +614,28 @@ Painter::DrawBezier(BPoint* p, bool filled) const
 	}
 }
 
+// FillBezierGradient
+BRect
+Painter::FillBezierGradient(BPoint* p, const BGradient& gradient) const
+{
+	CHECK_CLIPPING
+	
+	fPath.remove_all();
+	
+	_Transform(&(p[0]));
+	_Transform(&(p[1]));
+	_Transform(&(p[2]));
+	_Transform(&(p[3]));
+	
+	fPath.move_to(p[0].x, p[0].y);
+	fPath.curve4(p[1].x, p[1].y,
+				 p[2].x, p[2].y,
+				 p[3].x, p[3].y);
+	
+	
+	fPath.close_polygon();
+	return _FillPathGradient(fCurve, gradient);
+}
 
 
 // DrawShape
@@ -600,6 +686,51 @@ Painter::DrawShape(const int32& opCount, const uint32* opList,
 		return _StrokePath(fCurve);
 }
 
+// FillShapeGradient
+BRect
+Painter::FillShapeGradient(const int32& opCount, const uint32* opList,
+				   const int32& ptCount, const BPoint* points,
+				   const BGradient& gradient) const
+{
+	CHECK_CLIPPING
+	
+	// TODO: if shapes are ever used more heavily in Haiku,
+	// it would be nice to use BShape data directly (write
+	// an AGG "VertexSource" adaptor)
+	fPath.remove_all();
+	for (int32 i = 0; i < opCount; i++) {
+		uint32 op = opList[i] & 0xFF000000;
+		if (op & OP_MOVETO) {
+			fPath.move_to(points->x, points->y);
+			points++;
+		}
+		
+		if (op & OP_LINETO) {
+			int32 count = opList[i] & 0x00FFFFFF;
+			while (count--) {
+				fPath.line_to(points->x, points->y);
+				points++;
+			}
+		}
+		
+		if (op & OP_BEZIERTO) {
+			int32 count = opList[i] & 0x00FFFFFF;
+			while (count) {
+				fPath.curve4(points[0].x, points[0].y,
+							 points[1].x, points[1].y,
+							 points[2].x, points[2].y);
+				points += 3;
+				count -= 3;
+			}
+		}
+		
+		if (op & OP_CLOSE)
+			fPath.close_polygon();
+	}
+	
+	return _FillPathGradient(fCurve, gradient);
+}
+
 // StrokeRect
 BRect
 Painter::StrokeRect(const BRect& r) const
@@ -723,6 +854,34 @@ Painter::FillRect(const BRect& r) const
 	return _FillPath(fPath);
 }
 
+// FillRectGradient
+BRect
+Painter::FillRectGradient(const BRect& r, const BGradient& gradient) const
+{
+	CHECK_CLIPPING
+	
+	// support invalid rects
+	BPoint a(min_c(r.left, r.right), min_c(r.top, r.bottom));
+	BPoint b(max_c(r.left, r.right), max_c(r.top, r.bottom));
+	_Transform(&a, false);
+	_Transform(&b, false);
+	
+	// account for stricter interpretation of coordinates in AGG
+	// the rectangle ranges from the top-left (.0, .0)
+	// to the bottom-right (.9999, .9999) corner of pixels
+	b.x += 1.0;
+	b.y += 1.0;
+	
+	fPath.remove_all();
+	fPath.move_to(a.x, a.y);
+	fPath.line_to(b.x, a.y);
+	fPath.line_to(b.x, b.y);
+	fPath.line_to(a.x, b.y);
+	fPath.close_polygon();
+	
+	return _FillPathGradient(fPath, gradient);
+}
+
 // FillRect
 void
 Painter::FillRect(const BRect& r, const rgb_color& c) const
@@ -907,6 +1066,31 @@ Painter::FillRoundRect(const BRect& r, float xRadius, float yRadius) const
 	return _FillPath(rect);
 }
 
+// FillRoundRectGradient
+BRect
+Painter::FillRoundRectGradient(const BRect& r, float xRadius, float yRadius,
+							   const BGradient& gradient) const
+{
+	CHECK_CLIPPING
+	
+	BPoint lt(r.left, r.top);
+	BPoint rb(r.right, r.bottom);
+	_Transform(&lt, false);
+	_Transform(&rb, false);
+	
+	// account for stricter interpretation of coordinates in AGG
+	// the rectangle ranges from the top-left (.0, .0)
+	// to the bottom-right (.9999, .9999) corner of pixels
+	rb.x += 1.0;
+	rb.y += 1.0;
+	
+	agg::rounded_rect rect;
+	rect.rect(lt.x, lt.y, rb.x, rb.y);
+	rect.radius(xRadius, yRadius);
+	
+	return _FillPathGradient(rect, gradient);
+}
+
 // AlignEllipseRect
 void
 Painter::AlignEllipseRect(BRect* rect, bool filled) const
@@ -999,6 +1183,29 @@ Painter::DrawEllipse(BRect r, bool fill) const
 	}
 }
 
+// FillEllipseGradient
+BRect
+Painter::FillEllipseGradient(BRect r, const BGradient& gradient) const
+{
+	CHECK_CLIPPING
+	
+	AlignEllipseRect(&r, true);
+	
+	float xRadius = r.Width() / 2.0;
+	float yRadius = r.Height() / 2.0;
+	BPoint center(r.left + xRadius, r.top + yRadius);
+	
+	int32 divisions = (int32)((xRadius + yRadius + 2 * fPenSize) * PI / 2);
+	if (divisions < 12)
+		divisions = 12;
+	if (divisions > 4096)
+		divisions = 4096;
+	
+	agg::ellipse path(center.x, center.y, xRadius, yRadius, divisions);
+		
+	return _FillPathGradient(path, gradient);
+}
+
 // StrokeArc
 BRect
 Painter::StrokeArc(BPoint center, float xRadius, float yRadius, float angle,
@@ -1055,6 +1262,42 @@ Painter::FillArc(BPoint center, float xRadius, float yRadius, float angle,
 	return _FillPath(fPath);
 }
 
+// FillArcGradient
+BRect
+Painter::FillArcGradient(BPoint center, float xRadius, float yRadius, float angle,
+				 float span, const BGradient& gradient) const
+{
+	CHECK_CLIPPING
+	
+	_Transform(&center);
+	
+	double angleRad = (angle * PI) / 180.0;
+	double spanRad = (span * PI) / 180.0;
+	agg::bezier_arc arc(center.x, center.y, xRadius, yRadius,
+						-angleRad, -spanRad);
+	
+	agg::conv_curve<agg::bezier_arc> segmentedArc(arc);
+	
+	fPath.remove_all();
+	
+	// build a new path by starting at the center point,
+	// then traversing the arc, then going back to the center
+	fPath.move_to(center.x, center.y);
+	
+	segmentedArc.rewind(0);
+	double x;
+	double y;
+	unsigned cmd = segmentedArc.vertex(&x, &y);
+	while (!agg::is_stop(cmd)) {
+		fPath.line_to(x, y);
+		cmd = segmentedArc.vertex(&x, &y);
+	}
+	
+	fPath.close_polygon();
+	
+	return _FillPathGradient(fPath, gradient);
+}
+
 // #pragma mark -
 
 // DrawString
@@ -1161,6 +1404,21 @@ Painter::FillRegion(const BRegion* region) const
 	return touched;
 }
 
+// FillRegionGradient
+BRect
+Painter::FillRegionGradient(const BRegion* region, const BGradient& gradient) const
+{
+	CHECK_CLIPPING
+	
+	BRegion copy(*region);
+	int32 count = copy.CountRects();
+	BRect touched = FillRectGradient(copy.RectAt(0), gradient);
+	for (int32 i = 1; i < count; i++) {
+		touched = touched | FillRectGradient(copy.RectAt(i), gradient);
+	}
+	return touched;
+}
+
 // InvertRect
 BRect
 Painter::InvertRect(const BRect& r) const
@@ -2255,3 +2513,313 @@ Painter::_FillPath(VertexSource& path) const
 	return _Clipped(_BoundingBox(path));
 }
 
+// _FillPathGradient
+template<class VertexSource>
+BRect
+Painter::_FillPathGradient(VertexSource& path, const BGradient& gradient) const
+{
+	GTRACE("Painter::_FillPathGradient\n");
+	
+	switch(gradient.Type()) {
+		case B_GRADIENT_LINEAR: {
+			GTRACE(("Painter::_FillPathGradient> type == B_GRADIENT_LINEAR\n"));
+			_FillPathGradientLinear(path, *((const BGradientLinear*) &gradient));
+			break;
+		}
+		case B_GRADIENT_RADIAL: {
+			GTRACE(("Painter::_FillPathGradient> type == B_GRADIENT_RADIAL\n"));
+			_FillPathGradientRadial(path,
+				*((const BGradientRadial*) &gradient));
+			break;
+		}
+		case B_GRADIENT_RADIAL_FOCUS: {
+			GTRACE(("Painter::_FillPathGradient> type == B_GRADIENT_RADIAL_FOCUS\n"));
+			_FillPathGradientRadialFocus(path,
+				*((const BGradientRadialFocus*) &gradient));
+			break;
+		}
+		case B_GRADIENT_DIAMOND: {
+			GTRACE(("Painter::_FillPathGradient> type == B_GRADIENT_DIAMOND\n"));
+			_FillPathGradientDiamond(path,
+				*((const BGradientDiamond*) &gradient));
+			break;
+		}
+		case B_GRADIENT_CONIC: {
+			GTRACE(("Painter::_FillPathGradient> type == B_GRADIENT_CONIC\n"));
+			_FillPathGradientConic(path,
+				*((const BGradientConic*) &gradient));
+			break;
+		}
+		case B_GRADIENT_NONE: {
+			GTRACE(("Painter::_FillPathGradient> type == B_GRADIENT_NONE\n"));
+			break;
+		}
+	}
+
+	return _Clipped(_BoundingBox(path));
+}
+
+// _MakeGradient
+template<class Array>
+void
+Painter::_MakeGradient(Array& array, const BGradient& gradient) const
+{
+	for (int i = 0; i < gradient.CountColors() - 1; i++) {
+		color_step* from = gradient.ColorAtFast(i);
+		color_step* to = gradient.ColorAtFast(i + 1);
+		agg::rgba8 fromColor(from->color.red, from->color.green,
+							 from->color.blue, from->color.alpha);
+		agg::rgba8 toColor(to->color.red, to->color.green,
+						   to->color.blue, to->color.alpha);
+		GTRACE("Painter::_MakeGradient> fromColor(%d, %d, %d) offset = %f\n",
+			   fromColor.r, fromColor.g, fromColor.b, from->offset);
+		GTRACE("Painter::_MakeGradient> toColor(%d, %d, %d) offset = %f\n",
+			   toColor.r, toColor.g, toColor.b, to->offset);
+		float dist = to->offset - from->offset;
+		GTRACE("Painter::_MakeGradient> dist = %f\n", dist);
+		if (dist > 0) {
+			for (int j = from->offset; j <= to->offset; j++) {
+				float f = (float)(to->offset - j) / (float)(dist + 1);
+				array[j] = toColor.gradient(fromColor, f);
+				GTRACE("Painter::_MakeGradient> array[%d](%d, %d, %d)\n",
+					   array[j].r, array[j].g, array[j].b);
+			}
+		}
+	}
+}
+
+// _CalcLinearGradientTransform
+void Painter::_CalcLinearGradientTransform(BPoint startPoint, BPoint endPoint,
+										   agg::trans_affine& mtx,
+										   float gradient_d2) const
+{
+	float dx = endPoint.x - startPoint.x;
+	float dy = endPoint.y - startPoint.y;
+	mtx.reset();
+	mtx *= agg::trans_affine_scaling(sqrt(dx * dx + dy * dy) / gradient_d2);
+	mtx *= agg::trans_affine_rotation(atan2(dy, dx));
+	mtx *= agg::trans_affine_translation(startPoint.x, startPoint.y);
+	mtx.invert();
+}
+
+// _FillPathGradientLinear
+template<class VertexSource>
+void
+Painter::_FillPathGradientLinear(VertexSource& path,
+								 const BGradientLinear& linear) const
+{
+	GTRACE("Painter::_FillPathGradientLinear\n");
+	
+	BPoint start = linear.Start();
+	BPoint end = linear.End();
+
+	typedef agg::span_interpolator_linear<> interpolator_type;
+	typedef agg::pod_auto_array<agg::rgba8, 256> color_array_type;
+	typedef agg::span_allocator<agg::rgba8> span_allocator_type;
+	typedef agg::gradient_x	gradient_func_type;
+	typedef agg::span_gradient<agg::rgba8, interpolator_type,
+				gradient_func_type, color_array_type> span_gradient_type;
+	typedef agg::renderer_scanline_aa<renderer_base, span_allocator_type,
+				span_gradient_type> renderer_gradient_type;
+	
+	gradient_func_type gradientFunc;
+	agg::trans_affine gradientMtx;
+	interpolator_type spanInterpolator(gradientMtx);
+	span_allocator_type spanAllocator;
+	color_array_type colorArray;
+	
+	_MakeGradient(colorArray, linear);
+
+	span_gradient_type spanGradient(spanInterpolator, gradientFunc,
+									colorArray, 0, 100);
+	
+	renderer_gradient_type gradientRenderer(fBaseRenderer, spanAllocator,
+											spanGradient);
+
+	_CalcLinearGradientTransform(start, end, gradientMtx);
+
+	fRasterizer.reset();
+	fRasterizer.add_path(path);
+	agg::render_scanlines(fRasterizer, fPackedScanline, gradientRenderer);
+}
+
+// _FillPathGradientRadial
+template<class VertexSource>
+void
+Painter::_FillPathGradientRadial(VertexSource& path,
+								 const BGradientRadial& radial) const
+{
+	GTRACE("Painter::_FillPathGradientRadial\n");
+	
+	BPoint center = radial.Center();
+	float radius = radial.Radius();
+	
+	typedef agg::span_interpolator_linear<> interpolator_type;
+	typedef agg::pod_auto_array<agg::rgba8, 256> color_array_type;
+	typedef agg::span_allocator<agg::rgba8> span_allocator_type;
+	typedef agg::gradient_radial gradient_func_type;
+	typedef agg::span_gradient<agg::rgba8, interpolator_type,
+	gradient_func_type, color_array_type> span_gradient_type;
+	typedef agg::renderer_scanline_aa<renderer_base, span_allocator_type,
+	span_gradient_type> renderer_gradient_type;
+	
+	gradient_func_type gradientFunc;
+	agg::trans_affine gradientMtx;
+	interpolator_type spanInterpolator(gradientMtx);
+	span_allocator_type spanAllocator;
+	color_array_type colorArray;
+	
+	_MakeGradient(colorArray, radial);
+	
+	span_gradient_type spanGradient(spanInterpolator, gradientFunc,
+									colorArray, 0, 100);
+	
+	renderer_gradient_type gradientRenderer(fBaseRenderer, spanAllocator,
+											spanGradient);
+
+	gradientMtx.reset();
+	gradientMtx *= agg::trans_affine_translation(center.x, center.y);
+	gradientMtx.invert();
+
+//	_CalcLinearGradientTransform(start, end, gradientMtx);
+	
+	fRasterizer.reset();
+	fRasterizer.add_path(path);
+	agg::render_scanlines(fRasterizer, fPackedScanline, gradientRenderer);
+}
+
+// _FillPathGradientRadialFocus
+template<class VertexSource>
+void
+Painter::_FillPathGradientRadialFocus(VertexSource& path,
+							const BGradientRadialFocus& focus) const
+{
+	GTRACE("Painter::_FillPathGradientRadialFocus\n");
+	
+	BPoint center = focus.Center();
+	BPoint focal = focus.Focal();
+	float radius = focus.Radius();
+	
+	typedef agg::span_interpolator_linear<> interpolator_type;
+	typedef agg::pod_auto_array<agg::rgba8, 256> color_array_type;
+	typedef agg::span_allocator<agg::rgba8> span_allocator_type;
+	typedef agg::gradient_radial_focus gradient_func_type;
+	typedef agg::span_gradient<agg::rgba8, interpolator_type,
+	gradient_func_type, color_array_type> span_gradient_type;
+	typedef agg::renderer_scanline_aa<renderer_base, span_allocator_type,
+	span_gradient_type> renderer_gradient_type;
+	
+	gradient_func_type gradientFunc;
+	agg::trans_affine gradientMtx;
+	interpolator_type spanInterpolator(gradientMtx);
+	span_allocator_type spanAllocator;
+	color_array_type colorArray;
+	
+	_MakeGradient(colorArray, focus);
+	
+	span_gradient_type spanGradient(spanInterpolator, gradientFunc,
+									colorArray, 0, 100);
+	
+	renderer_gradient_type gradientRenderer(fBaseRenderer, spanAllocator,
+											spanGradient);
+	
+	gradientMtx.reset();
+	gradientMtx *= agg::trans_affine_translation(center.x, center.y);
+	gradientMtx.invert();
+	
+	//	_CalcLinearGradientTransform(start, end, gradientMtx);
+	
+	fRasterizer.reset();
+	fRasterizer.add_path(path);
+	agg::render_scanlines(fRasterizer, fPackedScanline, gradientRenderer);
+}
+
+// _FillPathGradientDiamond
+template<class VertexSource>
+void
+Painter::_FillPathGradientDiamond(VertexSource& path,
+								  const BGradientDiamond& diamond) const
+{
+	GTRACE("Painter::_FillPathGradientDiamond\n");
+	
+	BPoint center = diamond.Center();
+//	float radius = diamond.Radius();
+	
+	typedef agg::span_interpolator_linear<> interpolator_type;
+	typedef agg::pod_auto_array<agg::rgba8, 256> color_array_type;
+	typedef agg::span_allocator<agg::rgba8> span_allocator_type;
+	typedef agg::gradient_diamond gradient_func_type;
+	typedef agg::span_gradient<agg::rgba8, interpolator_type,
+	gradient_func_type, color_array_type> span_gradient_type;
+	typedef agg::renderer_scanline_aa<renderer_base, span_allocator_type,
+	span_gradient_type> renderer_gradient_type;
+	
+	gradient_func_type gradientFunc;
+	agg::trans_affine gradientMtx;
+	interpolator_type spanInterpolator(gradientMtx);
+	span_allocator_type spanAllocator;
+	color_array_type colorArray;
+	
+	_MakeGradient(colorArray, diamond);
+	
+	span_gradient_type spanGradient(spanInterpolator, gradientFunc,
+									colorArray, 0, 100);
+	
+	renderer_gradient_type gradientRenderer(fBaseRenderer, spanAllocator,
+											spanGradient);
+	
+	gradientMtx.reset();
+	gradientMtx *= agg::trans_affine_translation(center.x, center.y);
+	gradientMtx.invert();
+	
+	//	_CalcLinearGradientTransform(start, end, gradientMtx);
+	
+	fRasterizer.reset();
+	fRasterizer.add_path(path);
+	agg::render_scanlines(fRasterizer, fPackedScanline, gradientRenderer);
+}
+
+// _FillPathGradientConic
+template<class VertexSource>
+void
+Painter::_FillPathGradientConic(VertexSource& path,
+								const BGradientConic& conic) const
+{
+	GTRACE("Painter::_FillPathGradientConic\n");
+	
+	BPoint center = conic.Center();
+//	float radius = conic.Radius();
+	
+	typedef agg::span_interpolator_linear<> interpolator_type;
+	typedef agg::pod_auto_array<agg::rgba8, 256> color_array_type;
+	typedef agg::span_allocator<agg::rgba8> span_allocator_type;
+	typedef agg::gradient_conic gradient_func_type;
+	typedef agg::span_gradient<agg::rgba8, interpolator_type,
+	gradient_func_type, color_array_type> span_gradient_type;
+	typedef agg::renderer_scanline_aa<renderer_base, span_allocator_type,
+	span_gradient_type> renderer_gradient_type;
+	
+	gradient_func_type gradientFunc;
+	agg::trans_affine gradientMtx;
+	interpolator_type spanInterpolator(gradientMtx);
+	span_allocator_type spanAllocator;
+	color_array_type colorArray;
+	
+	_MakeGradient(colorArray, conic);
+	
+	span_gradient_type spanGradient(spanInterpolator, gradientFunc,
+									colorArray, 0, 100);
+	
+	renderer_gradient_type gradientRenderer(fBaseRenderer, spanAllocator,
+											spanGradient);
+	
+	gradientMtx.reset();
+	gradientMtx *= agg::trans_affine_translation(center.x, center.y);
+	gradientMtx.invert();
+	
+	//	_CalcLinearGradientTransform(start, end, gradientMtx);
+	
+	fRasterizer.reset();
+	fRasterizer.add_path(path);
+	agg::render_scanlines(fRasterizer, fPackedScanline, gradientRenderer);
+}

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

@@ -26,6 +26,12 @@
 
 class BBitmap;
 class BRegion;
+class BGradient;
+class BGradientLinear;
+class BGradientRadial;
+class BGradientRadialFocus;
+class BGradientDiamond;
+class BGradientConic;
 class DrawState;
 class FontCacheReference;
 class RenderingBuffer;
@@ -101,16 +107,25 @@ class Painter {
 			BRect				FillTriangle(	BPoint pt1,
 												BPoint pt2,
 												BPoint pt3) const;
-
+			BRect				FillTriangleGradient(BPoint pt1, BPoint pt2,
+													 BPoint pt3,
+													 const BGradient& gradient) const;
+	
 								// polygons
 			BRect				DrawPolygon(	BPoint* ptArray,
 												int32 numPts,
 											    bool filled,
 											    bool closed) const;
-
+			BRect				FillPolygonGradient(BPoint* ptArray,
+													int32 numPts,
+													const BGradient& gradient,
+													bool closed) const;
+	
 								// bezier curves
 			BRect				DrawBezier(		BPoint* controlPoints,
 												bool filled) const;
+			BRect				FillBezierGradient(BPoint* controlPoints,
+												   const BGradient& gradient) const;
 
 								// shapes
 			BRect				DrawShape(		const int32& opCount,
@@ -118,7 +133,12 @@ class Painter {
 												const int32& ptCount,
 												const BPoint* ptList,
 												bool filled) const;
-
+			BRect				FillShapeGradient(const int32& opCount,
+									const uint32* opList,
+									const int32& ptCount,
+									const BPoint* ptList,
+									const BGradient& gradient) const;
+	
 								// rects
 			BRect				StrokeRect(		const BRect& r) const;
 
@@ -127,6 +147,8 @@ class Painter {
 												const rgb_color& c) const;
 
 			BRect				FillRect(		const BRect& r) const;
+			BRect				FillRectGradient(const BRect& r,
+												 const BGradient& gradient) const;
 
 			// fills a solid rect with color c, no blending
 			void				FillRect(		const BRect& r,
@@ -143,13 +165,19 @@ class Painter {
 			BRect				FillRoundRect(	const BRect& r,
 												float xRadius,
 												float yRadius) const;
-
+			BRect				FillRoundRectGradient(const BRect& r,
+												float xRadius,
+												float yRadius,
+												const BGradient& gradient) const;
+	
 								// ellipses
 			void				AlignEllipseRect(BRect* rect,
 												 bool filled) const;
 
 			BRect				DrawEllipse(	BRect r,
 												bool filled) const;
+			BRect				FillEllipseGradient(BRect r,
+											const BGradient& gradient) const;
 
 								// arcs
 			BRect				StrokeArc(		BPoint center,
@@ -163,7 +191,13 @@ class Painter {
 												float yRadius,
 												float angle,
 												float span) const;
-
+			BRect				FillArcGradient(BPoint center,
+												float xRadius,
+												float yRadius,
+												float angle,
+												float span,
+												const BGradient& gradient) const;
+	
 								// strings
 			BRect				DrawString(		const char* utf8String,
 												uint32 length,
@@ -191,6 +225,8 @@ class Painter {
 
 								// some convenience stuff
 			BRect				FillRegion(		const BRegion* region) const;
+			BRect				FillRegionGradient(const BRegion* region,
+											const BGradient& gradient) const;
 
 			BRect				InvertRect(		const BRect& r) const;
 
@@ -265,7 +301,31 @@ class Painter {
 			BRect				_StrokePath(VertexSource& path) const;
 			template<class VertexSource>
 			BRect				_FillPath(VertexSource& path) const;
-
+			void				_CalcLinearGradientTransform(BPoint startPoint,
+									BPoint endPoint, agg::trans_affine& mtx,
+									float gradient_d2 = 100.0f) const;
+			template<class Array>
+			void				_MakeGradient(Array& array,
+									const BGradient& gradient) const;
+			template<class VertexSource>
+			BRect				_FillPathGradient(VertexSource& path,
+										const BGradient& gradient) const;
+			template<class VertexSource>
+			void				_FillPathGradientLinear(VertexSource& path,
+										const BGradientLinear& linear) const;
+			template<class VertexSource>
+			void				_FillPathGradientRadial(VertexSource& path,
+										const BGradientRadial& radial) const;
+			template<class VertexSource>
+			void				_FillPathGradientRadialFocus(VertexSource& path,
+										const BGradientRadialFocus& focus) const;
+			template<class VertexSource>
+			void				_FillPathGradientDiamond(VertexSource& path,
+										const BGradientDiamond& diamond) const;
+			template<class VertexSource>
+			void				_FillPathGradientConic(VertexSource& path,
+										const BGradientConic& conic) const;
+	
 mutable agg::rendering_buffer	fBuffer;
 
 	// AGG rendering and rasterization classes

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

@@ -20,6 +20,9 @@
 #include <agg_scanline_bin.h>
 #include <agg_scanline_p.h>
 #include <agg_scanline_u.h>
+#include <agg_span_allocator.h>
+#include <agg_span_gradient.h>
+#include <agg_span_interpolator_linear.h>
 #include <agg_rendering_buffer.h>
 
 #include "agg_rasterizer_scanline_aa_subpix.h"
@@ -68,7 +71,6 @@
 	typedef agg::rasterizer_scanline_aa<>						rasterizer_type;
 	typedef agg::rasterizer_scanline_aa_subpix<>				rasterizer_subpix_type;
 
-
 #endif // DEFINES_H