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1/////////////////////////////////////////////////////////////////////////////
2// Name: dc.h
3// Purpose: wxDC class
4// Author: AUTHOR
5// Modified by:
6// Created: ??/??/98
7// RCS-ID: $Id$
8// Copyright: (c) AUTHOR
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef _WX_DC_H_
13#define _WX_DC_H_
14
15#ifdef __GNUG__
16#pragma interface "dc.h"
17#endif
18
19#include "wx/pen.h"
20#include "wx/brush.h"
21#include "wx/icon.h"
22#include "wx/font.h"
23#include "wx/gdicmn.h"
24
25//-----------------------------------------------------------------------------
26// constants
27//-----------------------------------------------------------------------------
28
29#ifndef MM_TEXT
30#define MM_TEXT 0
31#define MM_ISOTROPIC 1
32#define MM_ANISOTROPIC 2
33#define MM_LOMETRIC 3
34#define MM_HIMETRIC 4
35#define MM_TWIPS 5
36#define MM_POINTS 6
37#define MM_METRIC 7
38#endif
39
40//-----------------------------------------------------------------------------
41// global variables
42//-----------------------------------------------------------------------------
43
44extern int wxPageNumber;
45
5273bf2f 46class wxMacPortStateHelper ;
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47//-----------------------------------------------------------------------------
48// wxDC
49//-----------------------------------------------------------------------------
50
05adb9d2 51class WXDLLEXPORT wxDC: public wxDCBase
0dbd6262 52{
05adb9d2 53 DECLARE_DYNAMIC_CLASS(wxDC)
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54
55 public:
56
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57 wxDC();
58 ~wxDC();
0dbd6262 59
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60
61 // implement base class pure virtuals
62 // ----------------------------------
63
64 virtual void Clear();
65
3dec57ad 66 virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; }
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67 virtual void EndDoc(void) {};
68
69 virtual void StartPage(void) {};
70 virtual void EndPage(void) {};
71
72 virtual void SetFont(const wxFont& font);
73 virtual void SetPen(const wxPen& pen);
74 virtual void SetBrush(const wxBrush& brush);
75 virtual void SetBackground(const wxBrush& brush);
76 virtual void SetBackgroundMode(int mode);
77 virtual void SetPalette(const wxPalette& palette);
78
79 virtual void DestroyClippingRegion();
80
81 virtual wxCoord GetCharHeight() const;
82 virtual wxCoord GetCharWidth() const;
83 virtual void DoGetTextExtent(const wxString& string,
84 wxCoord *x, wxCoord *y,
85 wxCoord *descent = NULL,
86 wxCoord *externalLeading = NULL,
87 wxFont *theFont = NULL) const;
88
89 virtual bool CanDrawBitmap() const;
90 virtual bool CanGetTextExtent() const;
91 virtual int GetDepth() const;
92 virtual wxSize GetPPI() const;
93
94 virtual void SetMapMode(int mode);
95 virtual void SetUserScale(double x, double y);
96
97 virtual void SetLogicalScale(double x, double y);
98 virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
99 virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
100 virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
101 virtual void SetLogicalFunction(int function);
102
103 virtual void SetTextForeground(const wxColour& colour) ;
104 virtual void SetTextBackground(const wxColour& colour) ;
105
0dbd6262 106 void ComputeScaleAndOrigin(void);
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107 public:
108
0dbd6262 109
03e11df5 110 wxCoord XDEV2LOG(wxCoord x) const
0dbd6262 111 {
5b36f53b 112 long new_x = x - m_deviceOriginX ;
0dbd6262 113 if (new_x > 0)
03e11df5 114 return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
0dbd6262 115 else
03e11df5 116 return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
0dbd6262 117 }
03e11df5 118 wxCoord XDEV2LOGREL(wxCoord x) const
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119 {
120 if (x > 0)
03e11df5 121 return (wxCoord)((double)(x) / m_scaleX + 0.5);
0dbd6262 122 else
03e11df5 123 return (wxCoord)((double)(x) / m_scaleX - 0.5);
0dbd6262 124 }
03e11df5 125 wxCoord YDEV2LOG(wxCoord y) const
0dbd6262 126 {
5b36f53b 127 long new_y = y - m_deviceOriginY ;
0dbd6262 128 if (new_y > 0)
03e11df5 129 return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
0dbd6262 130 else
03e11df5 131 return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
0dbd6262 132 }
03e11df5 133 wxCoord YDEV2LOGREL(wxCoord y) const
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134 {
135 if (y > 0)
03e11df5 136 return (wxCoord)((double)(y) / m_scaleY + 0.5);
0dbd6262 137 else
03e11df5 138 return (wxCoord)((double)(y) / m_scaleY - 0.5);
0dbd6262 139 }
03e11df5 140 wxCoord XLOG2DEV(wxCoord x) const
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141 {
142 long new_x = x - m_logicalOriginX;
143 if (new_x > 0)
5b36f53b 144 return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX ;
0dbd6262 145 else
5b36f53b 146 return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX ;
0dbd6262 147 }
03e11df5 148 wxCoord XLOG2DEVREL(wxCoord x) const
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149 {
150 if (x > 0)
03e11df5 151 return (wxCoord)((double)(x) * m_scaleX + 0.5);
0dbd6262 152 else
03e11df5 153 return (wxCoord)((double)(x) * m_scaleX - 0.5);
0dbd6262 154 }
03e11df5 155 wxCoord YLOG2DEV(wxCoord y) const
0dbd6262 156 {
5b36f53b 157 long new_y = y - m_logicalOriginY ;
0dbd6262 158 if (new_y > 0)
5b36f53b 159 return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY ;
0dbd6262 160 else
5b36f53b 161 return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY ;
0dbd6262 162 }
03e11df5 163 wxCoord YLOG2DEVREL(wxCoord y) const
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164 {
165 if (y > 0)
03e11df5 166 return (wxCoord)((double)(y) * m_scaleY + 0.5);
0dbd6262 167 else
03e11df5 168 return (wxCoord)((double)(y) * m_scaleY - 0.5);
0dbd6262 169 }
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170 wxCoord XLOG2DEVMAC(wxCoord x) const
171 {
172 long new_x = x - m_logicalOriginX;
173 if (new_x > 0)
5273bf2f 174 return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x ;
5b36f53b 175 else
5273bf2f 176 return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x ;
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177 }
178 wxCoord YLOG2DEVMAC(wxCoord y) const
179 {
180 long new_y = y - m_logicalOriginY ;
181 if (new_y > 0)
5273bf2f 182 return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y ;
5b36f53b 183 else
5273bf2f 184 return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y ;
5b36f53b 185 }
0dbd6262 186
5273bf2f 187 WXHRGN MacGetCurrentClipRgn() { return m_macCurrentClipRgn ; }
5b36f53b 188 static void MacSetupBackgroundForCurrentPort(const wxBrush& background ) ;
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189//
190
191protected:
192 virtual void DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
193 int style = wxFLOOD_SURFACE);
194
195 virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
196
197 virtual void DoDrawPoint(wxCoord x, wxCoord y);
198 virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
199
200 virtual void DoDrawArc(wxCoord x1, wxCoord y1,
201 wxCoord x2, wxCoord y2,
202 wxCoord xc, wxCoord yc);
203
204 virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
205 double sa, double ea);
206
207 virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
208 virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
209 wxCoord width, wxCoord height,
210 double radius);
211 virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
212
213 virtual void DoCrossHair(wxCoord x, wxCoord y);
214
215 virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
216 virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
217 bool useMask = FALSE);
218
219 virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
220 virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
221 double angle);
222
223 virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
224 wxDC *source, wxCoord xsrc, wxCoord ysrc,
0cbff120 225 int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
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226
227 // this is gnarly - we can't even call this function DoSetClippingRegion()
228 // because of virtual function hiding
229 virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
230 virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
231 wxCoord width, wxCoord height);
232 virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y,
233 wxCoord *width, wxCoord *height)
234 {
235 GetClippingBox(x, y, width, height);
236 }
237
238 virtual void DoGetSize(int *width, int *height) const;
239 virtual void DoGetSizeMM(int* width, int* height) const;
240
241 virtual void DoDrawLines(int n, wxPoint points[],
242 wxCoord xoffset, wxCoord yoffset);
243 virtual void DoDrawPolygon(int n, wxPoint points[],
244 wxCoord xoffset, wxCoord yoffset,
245 int fillStyle = wxODDEVEN_RULE);
246
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247 protected:
248 //begin wxmac
249 // Variables used for scaling
0dbd6262 250 double m_mm_to_pix_x,m_mm_to_pix_y;
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251 // not yet used
252 bool m_needComputeScaleX,m_needComputeScaleY;
253 // If un-scrolled is non-zero or d.o. changes with scrolling.
254 // Set using SetInternalDeviceOrigin().
255 long m_internalDeviceOriginX,m_internalDeviceOriginY;
256 // To be set by external classes such as wxScrolledWindow
257 // using SetDeviceOrigin()
258 long m_externalDeviceOriginX,m_externalDeviceOriginY;
259
260 // Begin implementation for Mac
261 public:
0dbd6262 262
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263 WXHDC m_macPort ;
264 WXHBITMAP m_macMask ;
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265
266 // in order to preserve the const inheritance of the virtual functions, we have to
267 // use mutable variables starting from CWPro 5
268
269 void MacInstallFont() const ;
270 void MacInstallPen() const ;
271 void MacInstallBrush() const ;
272
273 mutable bool m_macFontInstalled ;
274 mutable bool m_macPenInstalled ;
275 mutable bool m_macBrushInstalled ;
276
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277 WXHRGN m_macBoundaryClipRgn ;
278 WXHRGN m_macCurrentClipRgn ;
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279 wxPoint m_macLocalOrigin ;
280 void MacSetupPort( wxMacPortStateHelper* ph ) const ;
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281 void MacCleanupPort( wxMacPortStateHelper* ph ) const ;
282 mutable void* m_macATSUIStyle ;
283 mutable wxMacPortStateHelper* m_macCurrentPortStateHelper ;
284 mutable bool m_macFormerAliasState ;
285 mutable short m_macFormerAliasSize ;
286 mutable bool m_macAliasWasEnabled ;
287 mutable void* m_macForegroundPixMap ;
288 mutable void* m_macBackgroundPixMap ;
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289};
290
291#endif
292 // _WX_DC_H_