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Compile fix when not using WXR resources.
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1/////////////////////////////////////////////////////////////////////////////
2// Name: dc.cpp
3// Purpose:
4// Author: Robert Roebling
5// RCS-ID: $Id$
6// Copyright: (c) 1998 Robert Roebling, Markus Holzem
7// Licence: wxWindows licence
8/////////////////////////////////////////////////////////////////////////////
9
10
11#ifdef __GNUG__
12 #pragma implementation "dc.h"
13#endif
14
15#include "wx/dc.h"
16
17#include <gdk/gdk.h>
18#include <gtk/gtk.h>
19
20//-----------------------------------------------------------------------------
21// constants
22//-----------------------------------------------------------------------------
23
24#define mm2inches 0.0393700787402
25#define inches2mm 25.4
26#define mm2twips 56.6929133859
27#define twips2mm 0.0176388888889
28#define mm2pt 2.83464566929
29#define pt2mm 0.352777777778
30
31//-----------------------------------------------------------------------------
32// wxDC
33//-----------------------------------------------------------------------------
34
35IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase)
36
37wxDC::wxDC()
38{
39 m_ok = FALSE;
40
41 m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() /
42 (double)wxGetDisplaySizeMM().GetWidth();
43 m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
44 (double)wxGetDisplaySizeMM().GetHeight();
45
46 m_needComputeScaleX = FALSE; /* not used yet */
47 m_needComputeScaleY = FALSE; /* not used yet */
48
49 m_logicalFunction = wxCOPY;
50
51 m_pen = *wxBLACK_PEN;
52 m_font = *wxNORMAL_FONT;
53 m_brush = *wxWHITE_BRUSH;
54}
55
56void wxDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
57{
58 m_clipping = TRUE;
59 m_clipX1 = x;
60 m_clipY1 = y;
61 m_clipX2 = x + width;
62 m_clipY2 = y + height;
63}
64
65void wxDC::DestroyClippingRegion()
66{
67 m_clipping = FALSE;
68}
69
70// ---------------------------------------------------------------------------
71// get DC capabilities
72// ---------------------------------------------------------------------------
73
74void wxDC::DoGetSizeMM( int* width, int* height ) const
75{
76 int w = 0;
77 int h = 0;
78 GetSize( &w, &h );
79 if (width) *width = int( double(w) / (m_userScaleX*m_mm_to_pix_x) );
80 if (height) *height = int( double(h) / (m_userScaleY*m_mm_to_pix_y) );
81}
82
83// Resolution in pixels per logical inch
84wxSize wxDC::GetPPI() const
85{
86 // TODO (should probably be pure virtual)
87 return wxSize(0, 0);
88}
89
90// ---------------------------------------------------------------------------
91// set various DC parameters
92// ---------------------------------------------------------------------------
93
94void wxDC::ComputeScaleAndOrigin()
95{
96 m_scaleX = m_logicalScaleX * m_userScaleX;
97 m_scaleY = m_logicalScaleY * m_userScaleY;
98}
99
100void wxDC::SetMapMode( int mode )
101{
102 switch (mode)
103 {
104 case wxMM_TWIPS:
105 SetLogicalScale( twips2mm*m_mm_to_pix_x, twips2mm*m_mm_to_pix_y );
106 break;
107 case wxMM_POINTS:
108 SetLogicalScale( pt2mm*m_mm_to_pix_x, pt2mm*m_mm_to_pix_y );
109 break;
110 case wxMM_METRIC:
111 SetLogicalScale( m_mm_to_pix_x, m_mm_to_pix_y );
112 break;
113 case wxMM_LOMETRIC:
114 SetLogicalScale( m_mm_to_pix_x/10.0, m_mm_to_pix_y/10.0 );
115 break;
116 default:
117 case wxMM_TEXT:
118 SetLogicalScale( 1.0, 1.0 );
119 break;
120 }
121 m_mappingMode = mode;
122
123/* we don't do this mega optimisation
124 if (mode != wxMM_TEXT)
125 {
126 m_needComputeScaleX = TRUE;
127 m_needComputeScaleY = TRUE;
128 }
129*/
130}
131
132void wxDC::SetUserScale( double x, double y )
133{
134 // allow negative ? -> no
135 m_userScaleX = x;
136 m_userScaleY = y;
137 ComputeScaleAndOrigin();
138}
139
140void wxDC::SetLogicalScale( double x, double y )
141{
142 // allow negative ?
143 m_logicalScaleX = x;
144 m_logicalScaleY = y;
145 ComputeScaleAndOrigin();
146}
147
148void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
149{
150 m_logicalOriginX = x * m_signX; // is this still correct ?
151 m_logicalOriginY = y * m_signY;
152 ComputeScaleAndOrigin();
153}
154
155void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
156{
157 // only wxPostScripDC has m_signX = -1, we override SetDeviceOrigin there
158 m_deviceOriginX = x;
159 m_deviceOriginY = y;
160 ComputeScaleAndOrigin();
161}
162
163void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
164{
165 // only wxPostScripDC has m_signX = -1, we override SetAxisOrientation there
166 m_signX = (xLeftRight ? 1 : -1);
167 m_signY = (yBottomUp ? -1 : 1);
168 ComputeScaleAndOrigin();
169}
170
171// ---------------------------------------------------------------------------
172// coordinates transformations
173// ---------------------------------------------------------------------------
174
175wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
176{
177 return ((wxDC *)this)->XDEV2LOG(x);
178}
179
180wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
181{
182 return ((wxDC *)this)->YDEV2LOG(y);
183}
184
185wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
186{
187 return ((wxDC *)this)->XDEV2LOGREL(x);
188}
189
190wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
191{
192 return ((wxDC *)this)->YDEV2LOGREL(y);
193}
194
195wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
196{
197 return ((wxDC *)this)->XLOG2DEV(x);
198}
199
200wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
201{
202 return ((wxDC *)this)->YLOG2DEV(y);
203}
204
205wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
206{
207 return ((wxDC *)this)->XLOG2DEVREL(x);
208}
209
210wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
211{
212 return ((wxDC *)this)->YLOG2DEVREL(y);
213}
214