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