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git.saurik.com Git - wxWidgets.git/blob - include/wx/dcmirror.h
1 ///////////////////////////////////////////////////////////////////////////////
3 // Purpose: wxMirrorDC class
4 // Author: Vadim Zeitlin
8 // Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
9 // Licence: wxWindows licence
10 ///////////////////////////////////////////////////////////////////////////////
12 #ifndef _WX_DCMIRROR_H_
13 #define _WX_DCMIRROR_H_
17 // ----------------------------------------------------------------------------
18 // wxMirrorDC allows to write the same code for horz/vertical layout
19 // ----------------------------------------------------------------------------
21 class WXDLLEXPORT wxMirrorDC
: public wxDC
24 // constructs a mirror DC associated with the given real DC
26 // if mirror parameter is true, all vertical and horizontal coordinates are
27 // exchanged, otherwise this class behaves in exactly the same way as a
30 // the cast to wxMirrorDC is a dirty hack done to allow us to call the
31 // protected methods of wxDCBase directly in our code below, without it it
32 // would be impossible (this is correct from C++ point of view but doesn't
33 // make any sense in this particular situation)
34 wxMirrorDC(wxDC
& dc
, bool mirror
) : m_dc((wxMirrorDC
&)dc
)
35 { m_mirror
= mirror
; }
37 // wxDCBase operations
38 virtual void Clear() { m_dc
.Clear(); }
39 virtual void SetFont(const wxFont
& font
) { m_dc
.SetFont(font
); }
40 virtual void SetPen(const wxPen
& pen
) { m_dc
.SetPen(pen
); }
41 virtual void SetBrush(const wxBrush
& brush
) { m_dc
.SetBrush(brush
); }
42 virtual void SetBackground(const wxBrush
& brush
)
43 { m_dc
.SetBackground(brush
); }
44 virtual void SetBackgroundMode(int mode
) { m_dc
.SetBackgroundMode(mode
); }
46 virtual void SetPalette(const wxPalette
& palette
)
47 { m_dc
.SetPalette(palette
); }
48 #endif // wxUSE_PALETTE
49 virtual void DestroyClippingRegion() { m_dc
.DestroyClippingRegion(); }
50 virtual wxCoord
GetCharHeight() const { return m_dc
.GetCharHeight(); }
51 virtual wxCoord
GetCharWidth() const { return m_dc
.GetCharWidth(); }
52 virtual bool CanDrawBitmap() const { return m_dc
.CanDrawBitmap(); }
53 virtual bool CanGetTextExtent() const { return m_dc
.CanGetTextExtent(); }
54 virtual int GetDepth() const { return m_dc
.GetDepth(); }
55 virtual wxSize
GetPPI() const { return m_dc
.GetPPI(); }
56 virtual bool Ok() const { return m_dc
.Ok(); }
57 virtual void SetMapMode(int mode
) { m_dc
.SetMapMode(mode
); }
58 virtual void SetUserScale(double x
, double y
)
59 { m_dc
.SetUserScale(GetX(x
, y
), GetY(x
, y
)); }
60 virtual void SetLogicalOrigin(wxCoord x
, wxCoord y
)
61 { m_dc
.SetLogicalOrigin(GetX(x
, y
), GetY(x
, y
)); }
62 virtual void SetDeviceOrigin(wxCoord x
, wxCoord y
)
63 { m_dc
.SetDeviceOrigin(GetX(x
, y
), GetY(x
, y
)); }
64 virtual void SetAxisOrientation(bool xLeftRight
, bool yBottomUp
)
65 { m_dc
.SetAxisOrientation(GetX(xLeftRight
, yBottomUp
),
66 GetY(xLeftRight
, yBottomUp
)); }
67 virtual void SetLogicalFunction(int function
)
68 { m_dc
.SetLogicalFunction(function
); }
70 // helper functions which may be useful for the users of this class
71 wxSize
Reflect(const wxSize
& sizeOrig
)
73 return m_mirror
? wxSize(sizeOrig
.y
, sizeOrig
.x
) : sizeOrig
;
77 // returns x and y if not mirroring or y and x if mirroring
78 wxCoord
GetX(wxCoord x
, wxCoord y
) const { return m_mirror
? y
: x
; }
79 wxCoord
GetY(wxCoord x
, wxCoord y
) const { return m_mirror
? x
: y
; }
80 double GetX(double x
, double y
) const { return m_mirror
? y
: x
; }
81 double GetY(double x
, double y
) const { return m_mirror
? x
: y
; }
82 bool GetX(bool x
, bool y
) const { return m_mirror
? y
: x
; }
83 bool GetY(bool x
, bool y
) const { return m_mirror
? x
: y
; }
85 // same thing but for pointers
86 wxCoord
*GetX(wxCoord
*x
, wxCoord
*y
) const { return m_mirror
? y
: x
; }
87 wxCoord
*GetY(wxCoord
*x
, wxCoord
*y
) const { return m_mirror
? x
: y
; }
89 // exchange x and y unconditionally
90 static void Swap(wxCoord
& x
, wxCoord
& y
)
97 // exchange x and y components of all points in the array if necessary
98 void Mirror(int n
, wxPoint points
[]) const
102 for ( int i
= 0; i
< n
; i
++ )
104 Swap(points
[i
].x
, points
[i
].y
);
110 // wxDCBase functions
111 virtual bool DoFloodFill(wxCoord x
, wxCoord y
, const wxColour
& col
,
112 int style
= wxFLOOD_SURFACE
)
114 return m_dc
.DoFloodFill(GetX(x
, y
), GetY(x
, y
), col
, style
);
117 virtual bool DoGetPixel(wxCoord x
, wxCoord y
, wxColour
*col
) const
119 return m_dc
.DoGetPixel(GetX(x
, y
), GetY(x
, y
), col
);
123 virtual void DoDrawPoint(wxCoord x
, wxCoord y
)
125 m_dc
.DoDrawPoint(GetX(x
, y
), GetY(x
, y
));
128 virtual void DoDrawLine(wxCoord x1
, wxCoord y1
, wxCoord x2
, wxCoord y2
)
130 m_dc
.DoDrawLine(GetX(x1
, y1
), GetY(x1
, y1
), GetX(x2
, y2
), GetY(x2
, y2
));
133 virtual void DoDrawArc(wxCoord x1
, wxCoord y1
,
134 wxCoord x2
, wxCoord y2
,
135 wxCoord xc
, wxCoord yc
)
137 wxFAIL_MSG( _T("this is probably wrong") );
139 m_dc
.DoDrawArc(GetX(x1
, y1
), GetY(x1
, y1
),
140 GetX(x2
, y2
), GetY(x2
, y2
),
144 virtual void DoDrawCheckMark(wxCoord x
, wxCoord y
,
145 wxCoord w
, wxCoord h
)
147 m_dc
.DoDrawCheckMark(GetX(x
, y
), GetY(x
, y
),
148 GetX(w
, h
), GetY(w
, h
));
151 virtual void DoDrawEllipticArc(wxCoord x
, wxCoord y
, wxCoord w
, wxCoord h
,
152 double sa
, double ea
)
154 wxFAIL_MSG( _T("this is probably wrong") );
156 m_dc
.DoDrawEllipticArc(GetX(x
, y
), GetY(x
, y
),
157 GetX(w
, h
), GetY(w
, h
),
161 virtual void DoDrawRectangle(wxCoord x
, wxCoord y
, wxCoord w
, wxCoord h
)
163 m_dc
.DoDrawRectangle(GetX(x
, y
), GetY(x
, y
), GetX(w
, h
), GetY(w
, h
));
166 virtual void DoDrawRoundedRectangle(wxCoord x
, wxCoord y
,
167 wxCoord w
, wxCoord h
,
170 m_dc
.DoDrawRoundedRectangle(GetX(x
, y
), GetY(x
, y
),
171 GetX(w
, h
), GetY(w
, h
),
175 virtual void DoDrawEllipse(wxCoord x
, wxCoord y
, wxCoord w
, wxCoord h
)
177 m_dc
.DoDrawEllipse(GetX(x
, y
), GetY(x
, y
), GetX(w
, h
), GetY(w
, h
));
180 virtual void DoCrossHair(wxCoord x
, wxCoord y
)
182 m_dc
.DoCrossHair(GetX(x
, y
), GetY(x
, y
));
185 virtual void DoDrawIcon(const wxIcon
& icon
, wxCoord x
, wxCoord y
)
187 m_dc
.DoDrawIcon(icon
, GetX(x
, y
), GetY(x
, y
));
190 virtual void DoDrawBitmap(const wxBitmap
&bmp
, wxCoord x
, wxCoord y
,
191 bool useMask
= FALSE
)
193 m_dc
.DoDrawBitmap(bmp
, GetX(x
, y
), GetY(x
, y
), useMask
);
196 virtual void DoDrawText(const wxString
& text
, wxCoord x
, wxCoord y
)
198 // this is never mirrored
199 m_dc
.DoDrawText(text
, x
, y
);
202 virtual void DoDrawRotatedText(const wxString
& text
,
203 wxCoord x
, wxCoord y
, double angle
)
205 // this is never mirrored
206 m_dc
.DoDrawRotatedText(text
, x
, y
, angle
);
209 virtual bool DoBlit(wxCoord xdest
, wxCoord ydest
,
210 wxCoord w
, wxCoord h
,
211 wxDC
*source
, wxCoord xsrc
, wxCoord ysrc
,
212 int rop
= wxCOPY
, bool useMask
= FALSE
,
213 wxCoord xsrcMask
= -1, wxCoord ysrcMask
= -1)
215 return m_dc
.DoBlit(GetX(xdest
, ydest
), GetY(xdest
, ydest
),
216 GetX(w
, h
), GetY(w
, h
),
217 source
, GetX(xsrc
, ysrc
), GetY(xsrc
, ysrc
),
219 GetX(xsrcMask
, ysrcMask
), GetX(xsrcMask
, ysrcMask
));
222 virtual void DoGetSize(int *w
, int *h
) const
224 m_dc
.DoGetSize(GetX(w
, h
), GetY(w
, h
));
227 virtual void DoGetSizeMM(int *w
, int *h
) const
229 m_dc
.DoGetSizeMM(GetX(w
, h
), GetY(w
, h
));
232 virtual void DoDrawLines(int n
, wxPoint points
[],
233 wxCoord xoffset
, wxCoord yoffset
)
237 m_dc
.DoDrawLines(n
, points
,
238 GetX(xoffset
, yoffset
), GetY(xoffset
, yoffset
));
243 virtual void DoDrawPolygon(int n
, wxPoint points
[],
244 wxCoord xoffset
, wxCoord yoffset
,
245 int fillStyle
= wxODDEVEN_RULE
)
249 m_dc
.DoDrawPolygon(n
, points
,
250 GetX(xoffset
, yoffset
), GetY(xoffset
, yoffset
),
256 virtual void DoSetClippingRegionAsRegion(const wxRegion
& WXUNUSED(region
))
258 wxFAIL_MSG( _T("not implemented") );
261 virtual void DoSetClippingRegion(wxCoord x
, wxCoord y
,
262 wxCoord w
, wxCoord h
)
264 m_dc
.DoSetClippingRegion(GetX(x
, y
), GetY(x
, y
), GetX(w
, h
), GetY(w
, h
));
267 virtual void DoGetTextExtent(const wxString
& string
,
268 wxCoord
*x
, wxCoord
*y
,
269 wxCoord
*descent
= NULL
,
270 wxCoord
*externalLeading
= NULL
,
271 wxFont
*theFont
= NULL
) const
274 m_dc
.DoGetTextExtent(string
, x
, y
, descent
, externalLeading
, theFont
);
283 #endif // _WX_DCMIRROR_H_