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83df96d6 JS |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: dc.h | |
3 | // Purpose: wxDC class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 17/09/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart | |
65571936 | 9 | // Licence: wxWindows licence |
83df96d6 JS |
10 | ///////////////////////////////////////////////////////////////////////////// |
11 | ||
12 | #ifndef _WX_DC_H_ | |
13 | #define _WX_DC_H_ | |
14 | ||
83df96d6 JS |
15 | #include "wx/pen.h" |
16 | #include "wx/brush.h" | |
17 | #include "wx/icon.h" | |
18 | #include "wx/font.h" | |
19 | #include "wx/gdicmn.h" | |
20 | ||
21 | //----------------------------------------------------------------------------- | |
22 | // constants | |
23 | //----------------------------------------------------------------------------- | |
24 | ||
25 | #ifndef MM_TEXT | |
26 | #define MM_TEXT 0 | |
27 | #define MM_ISOTROPIC 1 | |
28 | #define MM_ANISOTROPIC 2 | |
29 | #define MM_LOMETRIC 3 | |
30 | #define MM_HIMETRIC 4 | |
31 | #define MM_TWIPS 5 | |
32 | #define MM_POINTS 6 | |
33 | #define MM_METRIC 7 | |
34 | #endif | |
35 | ||
36 | //----------------------------------------------------------------------------- | |
37 | // wxDC | |
38 | //----------------------------------------------------------------------------- | |
39 | ||
40 | class WXDLLEXPORT wxDC : public wxDCBase | |
41 | { | |
83df96d6 JS |
42 | public: |
43 | wxDC(); | |
d3c7fc99 | 44 | virtual ~wxDC() { } |
d16b634f | 45 | |
83df96d6 JS |
46 | // implement base class pure virtuals |
47 | // ---------------------------------- | |
d16b634f | 48 | |
83df96d6 | 49 | virtual wxSize GetPPI() const; |
d16b634f | 50 | |
83df96d6 JS |
51 | virtual void SetMapMode(int mode); |
52 | virtual void SetUserScale(double x, double y); | |
53 | virtual void SetLogicalScale(double x, double y); | |
54 | virtual void SetLogicalOrigin(wxCoord x, wxCoord y); | |
55 | virtual void SetDeviceOrigin(wxCoord x, wxCoord y); | |
56 | virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp); | |
d16b634f | 57 | |
83df96d6 | 58 | protected: |
83df96d6 JS |
59 | virtual void DoSetClippingRegion(wxCoord x, wxCoord y, |
60 | wxCoord width, wxCoord height); | |
83df96d6 | 61 | virtual void DoGetSizeMM(int* width, int* height) const; |
d16b634f | 62 | |
83df96d6 | 63 | public: |
b1263dcf | 64 | virtual void ComputeScaleAndOrigin(); |
d16b634f | 65 | |
83df96d6 JS |
66 | wxCoord XDEV2LOG(wxCoord x) const |
67 | { | |
68 | wxCoord new_x = x - m_deviceOriginX; | |
69 | if (new_x > 0) | |
70 | return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX; | |
71 | else | |
72 | return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX; | |
73 | } | |
74 | wxCoord XDEV2LOGREL(wxCoord x) const | |
75 | { | |
76 | if (x > 0) | |
77 | return (wxCoord)((double)(x) / m_scaleX + 0.5); | |
78 | else | |
79 | return (wxCoord)((double)(x) / m_scaleX - 0.5); | |
80 | } | |
81 | wxCoord YDEV2LOG(wxCoord y) const | |
82 | { | |
83 | wxCoord new_y = y - m_deviceOriginY; | |
84 | if (new_y > 0) | |
85 | return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY; | |
86 | else | |
87 | return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY; | |
88 | } | |
89 | wxCoord YDEV2LOGREL(wxCoord y) const | |
90 | { | |
91 | if (y > 0) | |
92 | return (wxCoord)((double)(y) / m_scaleY + 0.5); | |
93 | else | |
94 | return (wxCoord)((double)(y) / m_scaleY - 0.5); | |
95 | } | |
96 | wxCoord XLOG2DEV(wxCoord x) const | |
97 | { | |
98 | wxCoord new_x = x - m_logicalOriginX; | |
99 | if (new_x > 0) | |
100 | return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX; | |
101 | else | |
102 | return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX; | |
103 | } | |
83df96d6 JS |
104 | wxCoord XLOG2DEVREL(wxCoord x) const |
105 | { | |
106 | if (x > 0) | |
107 | return (wxCoord)((double)(x) * m_scaleX + 0.5); | |
108 | else | |
109 | return (wxCoord)((double)(x) * m_scaleX - 0.5); | |
110 | } | |
111 | wxCoord YLOG2DEV(wxCoord y) const | |
112 | { | |
113 | wxCoord new_y = y - m_logicalOriginY; | |
114 | if (new_y > 0) | |
115 | return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY; | |
116 | else | |
117 | return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY; | |
118 | } | |
83df96d6 JS |
119 | wxCoord YLOG2DEVREL(wxCoord y) const |
120 | { | |
121 | if (y > 0) | |
122 | return (wxCoord)((double)(y) * m_scaleY + 0.5); | |
123 | else | |
124 | return (wxCoord)((double)(y) * m_scaleY - 0.5); | |
125 | } | |
d16b634f | 126 | |
83df96d6 JS |
127 | public: |
128 | // not sure what for, but what is a mm on a screen you don't know the size of? | |
129 | double m_mm_to_pix_x,m_mm_to_pix_y; | |
d16b634f | 130 | |
83df96d6 JS |
131 | // recompute scale? |
132 | bool m_needComputeScaleX, m_needComputeScaleY; | |
d16b634f | 133 | |
3cd0b8c5 RR |
134 | |
135 | private: | |
136 | DECLARE_ABSTRACT_CLASS(wxDC) | |
83df96d6 JS |
137 | }; |
138 | ||
139 | #endif | |
140 | // _WX_DC_H_ |