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c801d85f | 1 | ///////////////////////////////////////////////////////////////////////////// |
8ef94bfc | 2 | // Name: wx/gtk1/dc.h |
c801d85f KB |
3 | // Purpose: |
4 | // Author: Robert Roebling | |
dbf858b5 RR |
5 | // Id: $Id$ |
6 | // Copyright: (c) 1998 Robert Roebling | |
65571936 | 7 | // Licence: wxWindows licence |
c801d85f KB |
8 | ///////////////////////////////////////////////////////////////////////////// |
9 | ||
c801d85f KB |
10 | #ifndef __GTKDCH__ |
11 | #define __GTKDCH__ | |
12 | ||
c801d85f KB |
13 | //----------------------------------------------------------------------------- |
14 | // classes | |
15 | //----------------------------------------------------------------------------- | |
16 | ||
20123d49 | 17 | class WXDLLIMPEXP_CORE wxDC; |
c801d85f KB |
18 | |
19 | //----------------------------------------------------------------------------- | |
20 | // constants | |
21 | //----------------------------------------------------------------------------- | |
22 | ||
d2b1753d | 23 | #ifndef MM_TEXT |
a23fd0e1 | 24 | #define MM_TEXT 0 |
8bbe427f | 25 | #define MM_ISOTROPIC 1 |
a23fd0e1 VZ |
26 | #define MM_ANISOTROPIC 2 |
27 | #define MM_LOMETRIC 3 | |
28 | #define MM_HIMETRIC 4 | |
29 | #define MM_TWIPS 5 | |
30 | #define MM_POINTS 6 | |
31 | #define MM_METRIC 7 | |
d2b1753d | 32 | #endif |
c801d85f KB |
33 | |
34 | //----------------------------------------------------------------------------- | |
35 | // wxDC | |
36 | //----------------------------------------------------------------------------- | |
37 | ||
20123d49 | 38 | class WXDLLIMPEXP_CORE wxDC : public wxDCBase |
c801d85f | 39 | { |
463c1fa1 | 40 | public: |
a23fd0e1 | 41 | wxDC(); |
d3c7fc99 | 42 | virtual ~wxDC() { } |
c801d85f | 43 | |
0b04c4e0 | 44 | #if wxUSE_PALETTE |
a23fd0e1 | 45 | void SetColourMap( const wxPalette& palette ) { SetPalette(palette); }; |
0b04c4e0 | 46 | #endif // wxUSE_PALETTE |
8bbe427f | 47 | |
a23fd0e1 VZ |
48 | // Resolution in pixels per logical inch |
49 | virtual wxSize GetPPI() const; | |
c801d85f | 50 | |
b1263dcf | 51 | virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; } |
a23fd0e1 VZ |
52 | virtual void EndDoc() { } |
53 | virtual void StartPage() { } | |
54 | virtual void EndPage() { } | |
8bbe427f | 55 | |
a23fd0e1 VZ |
56 | virtual void SetMapMode( int mode ); |
57 | virtual void SetUserScale( double x, double y ); | |
58 | virtual void SetLogicalScale( double x, double y ); | |
72cdf4c9 VZ |
59 | virtual void SetLogicalOrigin( wxCoord x, wxCoord y ); |
60 | virtual void SetDeviceOrigin( wxCoord x, wxCoord y ); | |
8bbe427f | 61 | |
a23fd0e1 | 62 | virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp ); |
c801d85f | 63 | |
a23fd0e1 VZ |
64 | // implementation |
65 | // -------------- | |
8bbe427f | 66 | |
238d735d | 67 | virtual void ComputeScaleAndOrigin(); |
8bbe427f | 68 | |
72cdf4c9 | 69 | wxCoord XDEV2LOG(wxCoord x) const |
a23fd0e1 | 70 | { |
72cdf4c9 | 71 | wxCoord new_x = x - m_deviceOriginX; |
a23fd0e1 | 72 | if (new_x > 0) |
72cdf4c9 | 73 | return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX; |
a23fd0e1 | 74 | else |
72cdf4c9 | 75 | return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX; |
a23fd0e1 | 76 | } |
72cdf4c9 | 77 | wxCoord XDEV2LOGREL(wxCoord x) const |
a23fd0e1 VZ |
78 | { |
79 | if (x > 0) | |
72cdf4c9 | 80 | return (wxCoord)((double)(x) / m_scaleX + 0.5); |
a23fd0e1 | 81 | else |
72cdf4c9 | 82 | return (wxCoord)((double)(x) / m_scaleX - 0.5); |
a23fd0e1 | 83 | } |
72cdf4c9 | 84 | wxCoord YDEV2LOG(wxCoord y) const |
a23fd0e1 | 85 | { |
72cdf4c9 | 86 | wxCoord new_y = y - m_deviceOriginY; |
a23fd0e1 | 87 | if (new_y > 0) |
72cdf4c9 | 88 | return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY; |
a23fd0e1 | 89 | else |
72cdf4c9 | 90 | return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY; |
a23fd0e1 | 91 | } |
72cdf4c9 | 92 | wxCoord YDEV2LOGREL(wxCoord y) const |
a23fd0e1 VZ |
93 | { |
94 | if (y > 0) | |
72cdf4c9 | 95 | return (wxCoord)((double)(y) / m_scaleY + 0.5); |
a23fd0e1 | 96 | else |
72cdf4c9 | 97 | return (wxCoord)((double)(y) / m_scaleY - 0.5); |
a23fd0e1 | 98 | } |
72cdf4c9 | 99 | wxCoord XLOG2DEV(wxCoord x) const |
a23fd0e1 | 100 | { |
72cdf4c9 | 101 | wxCoord new_x = x - m_logicalOriginX; |
a23fd0e1 | 102 | if (new_x > 0) |
72cdf4c9 | 103 | return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX; |
a23fd0e1 | 104 | else |
72cdf4c9 | 105 | return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX; |
a23fd0e1 | 106 | } |
72cdf4c9 | 107 | wxCoord XLOG2DEVREL(wxCoord x) const |
a23fd0e1 VZ |
108 | { |
109 | if (x > 0) | |
72cdf4c9 | 110 | return (wxCoord)((double)(x) * m_scaleX + 0.5); |
a23fd0e1 | 111 | else |
72cdf4c9 | 112 | return (wxCoord)((double)(x) * m_scaleX - 0.5); |
a23fd0e1 | 113 | } |
72cdf4c9 | 114 | wxCoord YLOG2DEV(wxCoord y) const |
a23fd0e1 | 115 | { |
72cdf4c9 | 116 | wxCoord new_y = y - m_logicalOriginY; |
a23fd0e1 | 117 | if (new_y > 0) |
72cdf4c9 | 118 | return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY; |
a23fd0e1 | 119 | else |
72cdf4c9 | 120 | return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY; |
a23fd0e1 | 121 | } |
72cdf4c9 | 122 | wxCoord YLOG2DEVREL(wxCoord y) const |
a23fd0e1 VZ |
123 | { |
124 | if (y > 0) | |
72cdf4c9 | 125 | return (wxCoord)((double)(y) * m_scaleY + 0.5); |
a23fd0e1 | 126 | else |
72cdf4c9 | 127 | return (wxCoord)((double)(y) * m_scaleY - 0.5); |
a23fd0e1 VZ |
128 | } |
129 | ||
130 | protected: | |
131 | // base class pure virtuals implemented here | |
72cdf4c9 | 132 | virtual void DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height); |
a23fd0e1 | 133 | virtual void DoGetSizeMM(int* width, int* height) const; |
8bbe427f | 134 | |
a23fd0e1 VZ |
135 | public: |
136 | // GTK-specific member variables | |
8bbe427f | 137 | |
a23fd0e1 VZ |
138 | // not sure what for, but what is a mm on a screen you don't know the size |
139 | // of? | |
140 | double m_mm_to_pix_x, | |
141 | m_mm_to_pix_y; | |
8bbe427f | 142 | |
a23fd0e1 VZ |
143 | bool m_needComputeScaleX, |
144 | m_needComputeScaleY; // not yet used | |
8bbe427f | 145 | |
c3e44503 | 146 | |
20e05ffb RR |
147 | private: |
148 | DECLARE_ABSTRACT_CLASS(wxDC) | |
c801d85f KB |
149 | }; |
150 | ||
c3e44503 VZ |
151 | // this must be defined when wxDC::Blit() honours the DC origian and needed to |
152 | // allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK | |
153 | // 2.3.[23] | |
154 | #ifndef wxHAS_WORKING_GTK_DC_BLIT | |
155 | #define wxHAS_WORKING_GTK_DC_BLIT | |
156 | #endif | |
157 | ||
c801d85f | 158 | #endif // __GTKDCH__ |