xref: /haiku/headers/private/interface/ViewPrivate.h (revision 89755088d790ff4fe36f8aa77dacb2bd15507108)
1 /*
2  * Copyright 2003-2008, Haiku.
3  * Distributed under the terms of the MIT License.
4  *
5  * Authors:
6  *		Adrian Oanca <adioanca@cotty.iren.ro>
7  *		Axel Dörfler, axeld@pinc-software.de
8  */
9 #ifndef VIEW_PRIVATE_H
10 #define VIEW_PRIVATE_H
11 
12 
13 #include <Font.h>
14 #include <InterfaceDefs.h>
15 #include <Point.h>
16 #include <Rect.h>
17 #include <Region.h>
18 
19 const static uint32 kDeleteReplicant = 'JAHA';
20 
21 const static uint32 kWorkspacesViewFlag = 0x40000000UL;
22 	// was/is _B_RESERVED1_ in View.h
23 
24 enum {
25 	B_VIEW_FONT_BIT				= 0x00000001,
26 	B_VIEW_HIGH_COLOR_BIT		= 0x00000002,
27 	B_VIEW_DRAWING_MODE_BIT		= 0x00000004,
28 	B_VIEW_CLIP_REGION_BIT		= 0x00000008,
29 	B_VIEW_LINE_MODES_BIT		= 0x00000010,
30 	B_VIEW_BLENDING_BIT			= 0x00000020,
31 	B_VIEW_SCALE_BIT			= 0x00000040,
32 	B_VIEW_FONT_ALIASING_BIT	= 0x00000080,
33 	B_VIEW_FRAME_BIT			= 0x00000100,
34 	B_VIEW_ORIGIN_BIT			= 0x00000200,
35 	B_VIEW_PEN_SIZE_BIT			= 0x00000400,
36 	B_VIEW_PEN_LOCATION_BIT		= 0x00000800,
37 	B_VIEW_LOW_COLOR_BIT		= 0x00008000,
38 	B_VIEW_VIEW_COLOR_BIT		= 0x00010000,
39 	B_VIEW_PATTERN_BIT			= 0x00020000,
40 
41 	B_VIEW_ALL_BITS				= 0x0003ffff,
42 
43 	// these used for archiving only
44 	B_VIEW_RESIZE_BIT			= 0x00001000,
45 	B_VIEW_FLAGS_BIT			= 0x00002000,
46 	B_VIEW_EVENT_MASK_BIT		= 0x00004000
47 };
48 
49 
50 namespace BPrivate {
51 
52 class PortLink;
53 
54 class ViewState {
55 	public:
56 		ViewState();
57 
58 		inline bool IsValid(uint32 bit) const;
59 		inline bool IsAllValid() const;
60 
61 		void UpdateServerFontState(BPrivate::PortLink &link);
62 		void UpdateServerState(BPrivate::PortLink &link);
63 
64 		void UpdateFrom(BPrivate::PortLink &link);
65 
66 	public:
67 		BPoint				pen_location;
68 		float				pen_size;
69 
70 		rgb_color			high_color;
71 		rgb_color			low_color;
72 
73 		// This one is not affected by pop state/push state
74 		rgb_color			view_color;
75 
76 		::pattern			pattern;
77 
78 		::drawing_mode		drawing_mode;
79 		BRegion				clipping_region;
80 		bool				clipping_region_used;
81 		BPoint				origin;
82 
83 		// line modes
84 		join_mode			line_join;
85 		cap_mode			line_cap;
86 		float				miter_limit;
87 
88 		// alpha blending
89 		source_alpha		alpha_source_mode;
90 		alpha_function		alpha_function_mode;
91 
92 		float				scale;
93 
94 		// fonts
95 		BFont				font;
96 		uint16				font_flags;
97 		bool				font_aliasing;
98 			// font aliasing. Used for printing only!
99 
100 		// flags used for synchronization with app_server
101 		uint32				valid_flags;
102 		// flags used for archiving
103 		uint32				archiving_flags;
104 };
105 
106 inline bool
107 ViewState::IsValid(uint32 bit) const
108 {
109 	return valid_flags & bit;
110 }
111 
112 inline bool
113 ViewState::IsAllValid() const
114 {
115 	return (valid_flags & B_VIEW_ALL_BITS & ~B_VIEW_CLIP_REGION_BIT)
116 		== (B_VIEW_ALL_BITS & ~B_VIEW_CLIP_REGION_BIT);
117 }
118 
119 }	// namespace BPrivate
120 
121 struct _array_hdr_{
122 	float			startX;
123 	float			startY;
124 	float			endX;
125 	float			endY;
126 	rgb_color		color;
127 };
128 
129 struct _array_data_{
130 		// the max number of points in the array
131 	uint32			maxCount;
132 		// the current number of points in the array
133 	uint32			count;
134 		// the array of points
135 	_array_hdr_*	array;
136 };
137 
138 #endif	/* VIEW_PRIVATE_H */
139