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1/////////////////////////////////////////////////////////////////////////////
2// Name: dcclient.h
3// Purpose: wxClientDC, wxPaintDC and wxWindowDC classes
4// Author: Julian Smart
5// Modified by:
6// Created: 17/09/98
7// RCS-ID: $Id$
8// Copyright: (c) Julian Smart
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef _WX_DCCLIENT_H_
13#define _WX_DCCLIENT_H_
14
15#if defined(__GNUG__) && !defined(__APPLE__)
16#pragma interface "dcclient.h"
17#endif
18
19#include "wx/dc.h"
20
21// ----------------------------------------------------------------------------
22// fwd declarations
23// ----------------------------------------------------------------------------
24
25class WXDLLEXPORT wxWindowDC;
26class WXDLLEXPORT wxWindow;
27
28// Under Windows, wxClientDC, wxPaintDC and wxWindowDC are implemented
29// differently. On many platforms, however, they will be the same.
30
31//-----------------------------------------------------------------------------
32// wxWindowDC
33//-----------------------------------------------------------------------------
34
35class WXDLLEXPORT wxWindowDC : public wxDC
36{
37 DECLARE_DYNAMIC_CLASS(wxWindowDC)
38
39public:
40 wxWindowDC();
41 wxWindowDC( wxWindow *win );
42
43 ~wxWindowDC();
44
45 // TODO this function is Motif-only for now - should it go into base class?
46 void Clear(const wxRect& rect);
47
48 // implement base class pure virtuals
49 // ----------------------------------
50
51 virtual void Clear();
52
53 virtual void SetFont(const wxFont& font);
54 virtual void SetPen(const wxPen& pen);
55 virtual void SetBrush(const wxBrush& brush);
56 virtual void SetBackground(const wxBrush& brush);
57 virtual void SetBackgroundMode(int mode);
58 virtual void SetPalette(const wxPalette& palette);
59 virtual void SetLogicalFunction( int function );
60
61 virtual void SetTextForeground(const wxColour& colour);
62 virtual void SetTextBackground(const wxColour& colour);
63
64 virtual wxCoord GetCharHeight() const;
65 virtual wxCoord GetCharWidth() const;
66 virtual void DoGetTextExtent(const wxString& string,
67 wxCoord *x, wxCoord *y,
68 wxCoord *descent = NULL,
69 wxCoord *externalLeading = NULL,
70 wxFont *theFont = NULL) const;
71
72 virtual bool CanDrawBitmap() const;
73 virtual bool CanGetTextExtent() const;
74
75 virtual int GetDepth() const;
76 virtual wxSize GetPPI() const;
77
78 virtual void DestroyClippingRegion();
79
80 // Helper function for setting clipping
81 void SetDCClipping(WXRegion region);
82
83 // implementation from now on
84 // --------------------------
85
86 WXGC GetGC() const { return m_gc; }
87 WXGC GetBackingGC() const { return m_gcBacking; }
88 WXDisplay* GetDisplay() const { return m_display; }
89 bool GetAutoSetting() const { return m_autoSetting; }
90 void SetAutoSetting(bool flag) { m_autoSetting = flag; }
91
92protected:
93 // note that this function will call colour.SetPixel,
94 // and will do one of curCol = colour, curCol = wxWHITE, curCol = wxBLACK
95 // roundToWhite has an effect for monochrome display only
96 // if roundToWhite == TRUE then the colour will be set to white unless
97 // it is RGB 0x000000;if roundToWhite == FALSE the colour wull be set to
98 // black unless it id RGB 0xffffff
99 int CalculatePixel(wxColour& colour, wxColour& curCol,
100 bool roundToWhite) const;
101 // sets the foreground pixel taking into account the
102 // currently selected logical operation
103 void SetForegroundPixelWithLogicalFunction(int pixel);
104
105 virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
106 int style = wxFLOOD_SURFACE);
107
108 virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
109
110 virtual void DoDrawPoint(wxCoord x, wxCoord y);
111 virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
112
113 virtual void DoDrawArc(wxCoord x1, wxCoord y1,
114 wxCoord x2, wxCoord y2,
115 wxCoord xc, wxCoord yc);
116 virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
117 double sa, double ea);
118
119 virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
120 virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
121 wxCoord width, wxCoord height,
122 double radius);
123 virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
124
125 virtual void DoCrossHair(wxCoord x, wxCoord y);
126
127 virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
128 virtual void DoDrawRotatedText(const wxString &text, wxCoord x, wxCoord y, double angle);
129
130 virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
131 wxDC *source, wxCoord xsrc, wxCoord ysrc,
132 int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
133
134 virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
135 virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
136 wxCoord width, wxCoord height);
137
138 virtual void DoDrawLines(int n, wxPoint points[],
139 wxCoord xoffset, wxCoord yoffset);
140 virtual void DoDrawPolygon(int n, wxPoint points[],
141 wxCoord xoffset, wxCoord yoffset,
142 int fillStyle = wxODDEVEN_RULE);
143
144 void DoGetSize( int *width, int *height ) const;
145
146 // common part of constructors
147 void Init();
148
149 WXGC m_gc;
150 WXGC m_gcBacking;
151 WXDisplay* m_display;
152 wxWindow* m_window;
153 // Pixmap for drawing on
154 WXPixmap m_pixmap;
155 // Last clipping region set on th GC, this is the combination
156 // of paint clipping region and all user-defined clipping regions
157 WXRegion m_clipRegion;
158
159 // Not sure if we'll need all of these
160 int m_backgroundPixel;
161 wxColour m_currentColour;
162 int m_currentPenWidth ;
163 int m_currentPenJoin ;
164 int m_currentPenCap ;
165 int m_currentPenDashCount ;
166 wxX11Dash* m_currentPenDash ;
167 wxBitmap m_currentStipple ;
168 int m_currentStyle ;
169 int m_currentFill ;
170 int m_autoSetting ; // See comment in dcclient.cpp
171 WXFont m_oldFont;
172};
173
174class WXDLLEXPORT wxPaintDC: public wxWindowDC
175{
176 DECLARE_DYNAMIC_CLASS(wxPaintDC)
177
178public:
179 wxPaintDC() { }
180 wxPaintDC(wxWindow* win);
181
182 ~wxPaintDC();
183};
184
185class WXDLLEXPORT wxClientDC: public wxWindowDC
186{
187 DECLARE_DYNAMIC_CLASS(wxClientDC)
188
189public:
190 wxClientDC() { }
191 wxClientDC(wxWindow* win) : wxWindowDC(win) { }
192};
193
194#endif
195// _WX_DCCLIENT_H_