Rewrote the push/pop state and ViewAttr stuff:

- it now seems to work finally correctly
- renamed ViewAttr to ViewState and put it into the BPrivate namespace
- some refactoring (moved some private BView methods to ViewState)
- renamed AS_LAYER_MOVETO/RESIZETO to *_TO (note the underscore)
- exchanged BView::originX/Y with fParentOffset (BPoint)
- divided AS_LAYER_GET_COLORS into separate ones for high/low/view color
- BView::SetPattern() now actually works as expected (ie. updates
  only if necessary)
- exchanged the ViewAttr::flags with ViewState::valid_flags which inverses
  the previous logic (which wasn't even used consistently)
- fState was initialized twice (incorrectly by the ViewAttr constructor,
  and then again correctly by initCachedState()) - now the ViewState
  constructor does the job alone, but correctly
- BView::PushState() no longer resets the state (it did so only locally
  anyway...)
- cleanup


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@13325 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/interface/ViewAux.h

@@ -23,8 +23,8 @@ struct shape_data {
 
 enum {
 	B_VIEW_FONT_BIT				= 0x00000001,
-	B_VIEW_COLORS_BIT			= 0x00000002,
-	B_VIEW_DRAW_MODE_BIT		= 0x00000004,
+	B_VIEW_HIGH_COLOR_BIT		= 0x00000002,
+	B_VIEW_DRAWING_MODE_BIT		= 0x00000004,
 	B_VIEW_CLIP_REGION_BIT		= 0x00000008,
 	B_VIEW_LINE_MODES_BIT		= 0x00000010,
 	B_VIEW_BLENDING_BIT			= 0x00000020,
@@ -33,56 +33,70 @@ enum {
 	B_VIEW_COORD_BIT			= 0x00000100,	
 	B_VIEW_ORIGIN_BIT			= 0x00000200,	
 	B_VIEW_PEN_SIZE_BIT			= 0x00000400,
-	B_VIEW_PEN_LOC_BIT			= 0x00000800,
-	
-		// used for archiving
+	B_VIEW_PEN_LOCATION_BIT		= 0x00000800,
+	B_VIEW_LOW_COLOR_BIT		= 0x00008000,
+	B_VIEW_VIEW_COLOR_BIT		= 0x00010000,
+	B_VIEW_PATTERN_BIT			= 0x00020000,
+
+	// these used for archiving only
 	B_VIEW_RESIZE_BIT			= 0x00001000,
 	B_VIEW_FLAGS_BIT			= 0x00002000,
-	B_VIEW_EVMASK_BIT			= 0x00004000
+	B_VIEW_EVENT_MASK_BIT		= 0x00004000
 };
 
 
-// JB: Is there any reason why this can't be a struct ?
-//struct _view_attr_{
-class ViewAttr
-{
-public:
-			ViewAttr(void);
-			BFont				font;
-			uint16				fontFlags;
+namespace BPrivate {
 
-			BPoint				penPosition;
-			float				penSize;
+class ViewState {
+	public:
+		ViewState();
 
-			rgb_color			highColor;
-			rgb_color			lowColor;
-// TODO: viewColor, is NOT part of a view state! Have this as a member of BView.
-			rgb_color			viewColor;
-			
-			pattern				patt;
+		bool IsValid(uint32 bit) { return valid_flags & bit; }
 
-			drawing_mode		drawingMode;
-				// clipping region for our view
-			BRegion				clippingRegion;
-				// local coordinate system
-			BPoint				coordSysOrigin;
-				// line modes
-			join_mode			lineJoin;
-			cap_mode			lineCap;
-			float				miterLimit;
-				// alpha blending
-			source_alpha		alphaSrcMode;
-			alpha_function		alphaFncMode;
-				// scale
-			float				scale;
-				// font aliasing. Used for printing only!
-			bool				fontAliasing;
-				// flags used for synchronization with app_server
-			uint16				flags;
-				// flags used for archiving
-			uint16				archivingFlags;
+		void UpdateServerFontState(BPrivate::PortLink &link);
+		void UpdateServerState(BPrivate::PortLink &link);
+
+	public:
+		BPoint				pen_location;
+		float				pen_size;
+
+		rgb_color			high_color;
+		rgb_color			low_color;
+
+		// This one is not affected by pop state/push state
+		rgb_color			view_color;
+
+		::pattern			pattern;
+
+		::drawing_mode		drawing_mode;
+		BRegion				clipping_region;
+		BPoint				origin;
+
+		// line modes
+		join_mode			line_join;
+		cap_mode			line_cap;
+		float				miter_limit;
+
+		// alpha blending
+		source_alpha		alpha_source_mode;
+		alpha_function		alpha_function_mode;
+
+		float				scale;
+
+		// fonts
+		BFont				font;
+		uint16				font_flags;
+		bool				font_aliasing;
+			// font aliasing. Used for printing only!
+
+		// flags used for synchronization with app_server
+		uint32				valid_flags;
+		// flags used for archiving
+		uint32				archiving_flags;
 };
 
+}	// namespace BPrivate
+
 struct _array_hdr_{
 	float			startX;
 	float			startY;	
@@ -100,4 +114,4 @@ struct _array_data_{
 	_array_hdr_*	array;
 };
 
-#endif
+#endif	/* _VIEWAUX_H_ */