class WXDLLIMPEXP_FWD_CORE wxScreenDC;
class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
class WXDLLIMPEXP_FWD_CORE wxPrinterDC;
+class WXDLLIMPEXP_FWD_CORE wxPrintData;
//-----------------------------------------------------------------------------
// wxDrawObject helper class
//-----------------------------------------------------------------------------
-class WXDLLEXPORT wxDrawObject
+class WXDLLIMPEXP_CORE wxDrawObject
{
public:
public:
wxDCFactory() {}
virtual ~wxDCFactory() {}
-
- virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner ) = 0;
+
virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window ) = 0;
- virtual wxDCImpl* CreateClientDC( wxClientDC *owner ) = 0;
virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window ) = 0;
- virtual wxDCImpl* CreatePaintDC( wxPaintDC *owner ) = 0;
virtual wxDCImpl* CreatePaintDC( wxPaintDC *owner, wxWindow *window ) = 0;
virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner ) = 0;
virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap ) = 0;
virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxDC *dc ) = 0;
virtual wxDCImpl* CreateScreenDC( wxScreenDC *owner ) = 0;
+#if wxUSE_PRINTING_ARCHITECTURE
virtual wxDCImpl* CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data ) = 0;
-
- static void SetDCFactory( wxDCFactory *factory );
- static wxDCFactory *GetFactory();
+#endif
+
+ static void Set(wxDCFactory *factory);
+ static wxDCFactory *Get();
+
private:
static wxDCFactory *m_factory;
};
{
public:
wxNativeDCFactory() {}
-
- virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner );
+
virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window );
- virtual wxDCImpl* CreateClientDC( wxClientDC *owner );
virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window );
- virtual wxDCImpl* CreatePaintDC( wxPaintDC *owner );
virtual wxDCImpl* CreatePaintDC( wxPaintDC *owner, wxWindow *window );
virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner );
virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap );
virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxDC *dc );
virtual wxDCImpl* CreateScreenDC( wxScreenDC *owner );
+#if wxUSE_PRINTING_ARCHITECTURE
virtual wxDCImpl* CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data );
+#endif
};
//-----------------------------------------------------------------------------
{
public:
wxDCImpl( wxDC *owner );
- ~wxDCImpl();
-
+ virtual ~wxDCImpl();
+
wxDC *GetOwner() const { return m_owner; }
-
+
wxWindow* GetWindow() const { return m_window; }
-
+
virtual bool IsOk() const { return m_ok; }
// query capabilities
virtual bool CanDrawBitmap() const = 0;
virtual bool CanGetTextExtent() const = 0;
+ // get Cairo context
+ virtual void* GetCairoContext() const
+ {
+ return NULL;
+ }
+
// query dimension, colour deps, resolution
virtual void DoGetSize(int *width, int *height) const = 0;
+ void GetSize(int *width, int *height) const
+ {
+ DoGetSize(width, height);
+ return ;
+ }
+
+ wxSize GetSize() const
+ {
+ int w, h;
+ DoGetSize(&w, &h);
+ return wxSize(w, h);
+ }
+
virtual void DoGetSizeMM(int* width, int* height) const = 0;
-
+
virtual int GetDepth() const = 0;
virtual wxSize GetPPI() const = 0;
-
+
// Right-To-Left (RTL) modes
-
+
virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir)) { }
virtual wxLayoutDirection GetLayoutDirection() const { return wxLayout_Default; }
-
- // page and document
-
+
+ // page and document
+
virtual bool StartDoc(const wxString& WXUNUSED(message)) { return true; }
virtual void EndDoc() { }
wxCoord MaxX() const { return m_maxX; }
wxCoord MinY() const { return m_minY; }
wxCoord MaxY() const { return m_maxY; }
-
+
// setters and getters
virtual void SetFont(const wxFont& font) = 0;
- virtual const wxFont& GetFont() const { return m_font; }
-
+ virtual const wxFont& GetFont() const { return m_font; }
+
virtual void SetPen(const wxPen& pen) = 0;
- virtual const wxPen& GetPen() const { return m_pen; }
-
+ virtual const wxPen& GetPen() const { return m_pen; }
+
virtual void SetBrush(const wxBrush& brush) = 0;
- virtual const wxBrush& GetBrush() const { return m_brush; }
-
+ virtual const wxBrush& GetBrush() const { return m_brush; }
+
virtual void SetBackground(const wxBrush& brush) = 0;
- virtual const wxBrush& GetBackground() const { return m_backgroundBrush; }
-
+ virtual const wxBrush& GetBackground() const { return m_backgroundBrush; }
+
virtual void SetBackgroundMode(int mode) = 0;
virtual int GetBackgroundMode() const { return m_backgroundMode; }
virtual void SetTextForeground(const wxColour& colour)
{ m_textForegroundColour = colour; }
- virtual const wxColour& GetTextForeground() const { return m_textForegroundColour; }
-
+ virtual const wxColour& GetTextForeground() const
+ { return m_textForegroundColour; }
+
virtual void SetTextBackground(const wxColour& colour)
{ m_textBackgroundColour = colour; }
- virtual const wxColour& GetTextBackground() const { return m_textBackgroundColour; }
+ virtual const wxColour& GetTextBackground() const
+ { return m_textBackgroundColour; }
#if wxUSE_PALETTE
virtual void SetPalette(const wxPalette& palette) = 0;
#endif // wxUSE_PALETTE
+ // inherit the DC attributes (font and colours) from the given window
+ //
+ // this is called automatically when a window, client or paint DC is
+ // created
+ virtual void InheritAttributes(wxWindow *win);
+
+
// logical functions
-
+
virtual void SetLogicalFunction(int function) = 0;
virtual int GetLogicalFunction() const { return m_logicalFunction; }
wxCoord *heightLine = NULL,
const wxFont *font = NULL) const;
virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
-
+
// clearing
-
+
virtual void Clear() = 0;
// clipping
virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
wxCoord width, wxCoord height) = 0;
- virtual void DoSetClippingRegionAsRegion(const wxRegion& region) = 0;
+
+ // NB: this function works with device coordinates, not the logical ones!
+ virtual void DoSetDeviceClippingRegion(const wxRegion& region) = 0;
virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
wxCoord *w, wxCoord *h) const
if ( x ) *x = m_deviceOriginX;
if ( y ) *y = m_deviceOriginY;
}
-
+
virtual void SetDeviceLocalOrigin( wxCoord x, wxCoord y );
virtual void ComputeScaleAndOrigin();
wxCoord xoffset, wxCoord yoffset ) = 0;
virtual void DrawLines(const wxPointList *list,
wxCoord xoffset, wxCoord yoffset );
-
+
virtual void DoDrawPolygon(int n, wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
int fillStyle = wxODDEVEN_RULE) = 0;
#if wxUSE_SPLINES
- virtual void DoDrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3);
- virtual void DoDrawSpline(int n, wxPoint points[]);
+ void DrawSpline(wxCoord x1, wxCoord y1,
+ wxCoord x2, wxCoord y2,
+ wxCoord x3, wxCoord y3);
+ void DrawSpline(int n, wxPoint points[]);
+ void DrawSpline(const wxPointList *points) { DoDrawSpline(points); }
+
virtual void DoDrawSpline(const wxPointList *points);
#endif
-
+
// ---------------------------------------------------------
// wxMemoryDC Impl API
virtual void DoSelect(const wxBitmap& WXUNUSED(bmp))
{ }
-
+
virtual const wxBitmap& GetSelectedBitmap() const
{ return wxNullBitmap; }
virtual wxBitmap& GetSelectedBitmap()
{ return wxNullBitmap; }
-
+
// ---------------------------------------------------------
// wxPrinterDC Impl API
- virtual wxRect GetPaperRect()
+ virtual wxRect GetPaperRect() const
{ int w = 0; int h = 0; DoGetSize( &w, &h ); return wxRect(0,0,w,h); }
-
- virtual int GetResolution()
+
+ virtual int GetResolution() const
{ return -1; }
private:
wxDC *m_owner;
-protected:
+protected:
// unset clipping variables (after clipping region was destroyed)
void ResetClipping()
{
m_clipX1 = m_clipX2 = m_clipY1 = m_clipY2 = 0;
}
+#ifdef __WXWINCE__
+ //! Generic method to draw ellipses, circles and arcs with current pen and brush.
+ /*! \param x Upper left corner of bounding box.
+ * \param y Upper left corner of bounding box.
+ * \param w Width of bounding box.
+ * \param h Height of bounding box.
+ * \param sa Starting angle of arc
+ * (counterclockwise, start at 3 o'clock, 360 is full circle).
+ * \param ea Ending angle of arc.
+ * \param angle Rotation angle, the Arc will be rotated after
+ * calculating begin and end.
+ */
+ void DrawEllipticArcRot( wxCoord x, wxCoord y,
+ wxCoord width, wxCoord height,
+ double sa = 0, double ea = 0, double angle = 0 )
+ { DoDrawEllipticArcRot( x, y, width, height, sa, ea, angle ); }
+
+ void DrawEllipticArcRot( const wxPoint& pt,
+ const wxSize& sz,
+ double sa = 0, double ea = 0, double angle = 0 )
+ { DoDrawEllipticArcRot( pt.x, pt.y, sz.x, sz.y, sa, ea, angle ); }
+
+ void DrawEllipticArcRot( const wxRect& rect,
+ double sa = 0, double ea = 0, double angle = 0 )
+ { DoDrawEllipticArcRot( rect.x, rect.y, rect.width, rect.height, sa, ea, angle ); }
+
+ virtual void DoDrawEllipticArcRot( wxCoord x, wxCoord y,
+ wxCoord w, wxCoord h,
+ double sa = 0, double ea = 0, double angle = 0 );
+
+ //! Rotates points around center.
+ /*! This is a quite straight method, it calculates in pixels
+ * and so it produces rounding errors.
+ * \param points The points inside will be rotated.
+ * \param angle Rotating angle (counterclockwise, start at 3 o'clock, 360 is full circle).
+ * \param center Center of rotation.
+ */
+ void Rotate( wxPointList* points, double angle, wxPoint center = wxPoint(0,0) );
+
+ // used by DrawEllipticArcRot
+ // Careful: wxList gets filled with points you have to delete later.
+ void CalculateEllipticPoints( wxPointList* points,
+ wxCoord xStart, wxCoord yStart,
+ wxCoord w, wxCoord h,
+ double sa, double ea );
+#endif // __WXWINCE__
+
+ // returns adjustment factor for converting wxFont "point size"; in wx
+ // it is point size on screen and needs to be multiplied by this value
+ // for rendering on higher-resolution DCs such as printer ones
+ static float GetFontPointSizeAdjustment(float dpi);
+
// window on which the DC draws or NULL
wxWindow *m_window;
-
+
// flags
bool m_colour:1;
bool m_ok:1;
wxCoord m_logicalOriginX, m_logicalOriginY;
wxCoord m_deviceOriginX, m_deviceOriginY; // Usually 0,0, can be change by user
-
+
wxCoord m_deviceLocalOriginX, m_deviceLocalOriginY; // non-zero if native top-left corner
// is not at 0,0. This was the case under
// Mac's GrafPorts (coordinate system
double m_scaleX, m_scaleY; // calculated from logical scale and user scale
int m_signX, m_signY; // Used by SetAxisOrientation() to invert the axes
-
+
// what is a mm on a screen you don't know the size of?
double m_mm_to_pix_x,
m_mm_to_pix_y;
-
+
// bounding and clipping boxes
wxCoord m_minX, m_minY, m_maxX, m_maxY;
wxCoord m_clipX1, m_clipY1, m_clipX2, m_clipY2;
};
-class WXDLLIMPEXP_CORE wxDC: public wxObject
+class WXDLLIMPEXP_CORE wxDC : public wxObject
{
public:
- wxDC() { m_pimpl = NULL; }
- ~wxDC() { if (m_pimpl) delete m_pimpl; }
+ virtual ~wxDC() { delete m_pimpl; }
wxDCImpl *GetImpl()
{ return m_pimpl; }
const wxDCImpl *GetImpl() const
{ return m_pimpl; }
- wxWindow *GetWindow()
+ wxWindow *GetWindow() const
{ return m_pimpl->GetWindow(); }
- bool IsOk() const
+ bool IsOk() const
{ return m_pimpl && m_pimpl->IsOk(); }
// query capabilities
- bool CanDrawBitmap() const
+ bool CanDrawBitmap() const
{ return m_pimpl->CanDrawBitmap(); }
bool CanGetTextExtent() const
{ return m_pimpl->CanGetTextExtent(); }
-
+
// query dimension, colour deps, resolution
void GetSize(int *width, int *height) const
{ m_pimpl->DoGetSize(width, height); }
-
wxSize GetSize() const
- {
- int w, h;
- m_pimpl->DoGetSize(&w, &h);
- return wxSize(w, h);
- }
+ { return m_pimpl->GetSize(); }
void GetSizeMM(int* width, int* height) const
{ m_pimpl->DoGetSizeMM(width, height); }
m_pimpl->DoGetSizeMM(&w, &h);
return wxSize(w, h);
}
-
+
int GetDepth() const
{ return m_pimpl->GetDepth(); }
wxSize GetPPI() const
{ return m_pimpl->GetPPI(); }
- virtual int GetResolution()
+ virtual int GetResolution() const
{ return m_pimpl->GetResolution(); }
-
+
// Right-To-Left (RTL) modes
-
+
void SetLayoutDirection(wxLayoutDirection dir)
{ m_pimpl->SetLayoutDirection( dir ); }
wxLayoutDirection GetLayoutDirection() const
{ return m_pimpl->GetLayoutDirection(); }
-
- // page and document
-
+
+ // page and document
+
bool StartDoc(const wxString& message)
{ return m_pimpl->StartDoc(message); }
void EndDoc()
{ m_pimpl->EndPage(); }
// bounding box
-
+
void CalcBoundingBox(wxCoord x, wxCoord y)
{ m_pimpl->CalcBoundingBox(x,y); }
void ResetBoundingBox()
{ m_pimpl->ResetBoundingBox(); }
-
+
wxCoord MinX() const
{ return m_pimpl->MinX(); }
wxCoord MaxX() const
{ return m_pimpl->MinY(); }
wxCoord MaxY() const
{ return m_pimpl->MaxY(); }
-
+
// setters and getters
void SetFont(const wxFont& font)
{ m_pimpl->SetFont( font ); }
- const wxFont& GetFont() const
+ const wxFont& GetFont() const
{ return m_pimpl->GetFont(); }
-
+
void SetPen(const wxPen& pen)
{ m_pimpl->SetPen( pen ); }
- const wxPen& GetPen() const
+ const wxPen& GetPen() const
{ return m_pimpl->GetPen(); }
-
+
void SetBrush(const wxBrush& brush)
{ m_pimpl->SetBrush( brush ); }
const wxBrush& GetBrush() const
{ return m_pimpl->GetBrush(); }
-
+
void SetBackground(const wxBrush& brush)
{ m_pimpl->SetBackground( brush ); }
const wxBrush& GetBackground() const
{ return m_pimpl->GetBackground(); }
-
+
void SetBackgroundMode(int mode)
{ m_pimpl->SetBackgroundMode( mode ); }
int GetBackgroundMode() const
{ m_pimpl->SetTextForeground(colour); }
const wxColour& GetTextForeground() const
{ return m_pimpl->GetTextForeground(); }
-
+
void SetTextBackground(const wxColour& colour)
{ m_pimpl->SetTextBackground(colour); }
- const wxColour& GetTextBackground() const
+ const wxColour& GetTextBackground() const
{ return m_pimpl->GetTextBackground(); }
#if wxUSE_PALETTE
void SetPalette(const wxPalette& palette)
{ m_pimpl->SetPalette(palette); }
#endif // wxUSE_PALETTE
-
+
// logical functions
-
+
void SetLogicalFunction(int function)
{ m_pimpl->SetLogicalFunction(function); }
int GetLogicalFunction() const
{ return m_pimpl->GetLogicalFunction(); }
-
+
// text measurement
wxCoord GetCharHeight() const
{ return m_pimpl->GetCharHeight(); }
wxCoord GetCharWidth() const
{ return m_pimpl->GetCharWidth(); }
-
+
void GetTextExtent(const wxString& string,
wxCoord *x, wxCoord *y,
wxCoord *descent = NULL,
m_pimpl->DoGetTextExtent(string, &w, &h);
return wxSize(w, h);
}
-
+
void GetMultiLineTextExtent(const wxString& string,
wxCoord *width,
wxCoord *height,
wxCoord *heightLine = NULL,
const wxFont *font = NULL) const
{ m_pimpl->GetMultiLineTextExtent( string, width, height, heightLine, font ); }
-
+
wxSize GetMultiLineTextExtent(const wxString& string) const
{
wxCoord w, h;
m_pimpl->GetMultiLineTextExtent(string, &w, &h);
return wxSize(w, h);
}
-
+
bool GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
{ return m_pimpl->DoGetPartialTextExtents(text, widths); }
-
+
// clearing
-
+
void Clear()
{ m_pimpl->Clear(); }
{ m_pimpl->DoSetClippingRegion(pt.x, pt.y, sz.x, sz.y); }
void SetClippingRegion(const wxRect& rect)
{ m_pimpl->DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height); }
- void SetClippingRegion(const wxRegion& region)
- { m_pimpl->DoSetClippingRegionAsRegion(region); }
+
+ // unlike the functions above, the coordinates of the region used in this
+ // one are in device coordinates, not the logical ones
+ void SetDeviceClippingRegion(const wxRegion& region)
+ { m_pimpl->DoSetDeviceClippingRegion(region); }
+
+ // this function is deprecated because its name is confusing: you may
+ // expect it to work with logical coordinates but, in fact, it does exactly
+ // the same thing as SetDeviceClippingRegion()
+ //
+ // please review the code using it and either replace it with calls to
+ // SetDeviceClippingRegion() or correct it if it was [wrongly] passing
+ // logical coordinates to this function
+ wxDEPRECATED_INLINE(void SetClippingRegion(const wxRegion& region),
+ SetDeviceClippingRegion(region); )
void DestroyClippingRegion()
{ m_pimpl->DestroyClippingRegion(); }
{ m_pimpl->DoGetClippingBox(x, y, w, h); }
void GetClippingBox(wxRect& rect) const
{ m_pimpl->DoGetClippingBox(&rect.x, &rect.y, &rect.width, &rect.height); }
-
+
// coordinates conversions and transforms
wxCoord DeviceToLogicalX(wxCoord x) const
void SetAxisOrientation(bool xLeftRight, bool yBottomUp)
{ m_pimpl->SetAxisOrientation(xLeftRight, yBottomUp); }
-
- // mostly internal
+
+ // mostly internal
void SetDeviceLocalOrigin( wxCoord x, wxCoord y )
{ m_pimpl->SetDeviceLocalOrigin( x, y ); }
{ m_pimpl->DoDrawLines(n, points, xoffset, yoffset); }
void DrawLines(const wxPointList *list,
wxCoord xoffset = 0, wxCoord yoffset = 0)
- { m_pimpl->DrawLines( list, xoffset, yoffset ); }
+ { m_pimpl->DrawLines( list, xoffset, yoffset ); }
#if WXWIN_COMPATIBILITY_2_8
wxDEPRECATED( void DrawLines(const wxList *list,
wxCoord xoffset = 0, wxCoord yoffset = 0) );
source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y);
}
- bool StretchBlit(wxCoord dstX, wxCoord dstY,
+ bool StretchBlit(wxCoord dstX, wxCoord dstY,
wxCoord dstWidth, wxCoord dstHeight,
- wxDC *source,
+ wxDC *source,
wxCoord srcX, wxCoord srcY,
wxCoord srcWidth, wxCoord srcHeight,
- int rop = wxCOPY, bool useMask = false,
+ int rop = wxCOPY, bool useMask = false,
wxCoord srcMaskX = wxDefaultCoord, wxCoord srcMaskY = wxDefaultCoord)
{
return m_pimpl->DoStretchBlit(dstX, dstY, dstWidth, dstHeight,
void DrawSpline(wxCoord x1, wxCoord y1,
wxCoord x2, wxCoord y2,
wxCoord x3, wxCoord y3)
- { m_pimpl->DoDrawSpline(x1,y1,x2,y2,x3,y3); }
+ { m_pimpl->DrawSpline(x1,y1,x2,y2,x3,y3); }
void DrawSpline(int n, wxPoint points[])
- { m_pimpl->DoDrawSpline(n,points); }
- void DrawSpline(const wxPointList *points)
- { m_pimpl->DoDrawSpline(points); }
+ { m_pimpl->DrawSpline(n,points); }
+ void DrawSpline(const wxPointList *points)
+ { m_pimpl->DrawSpline(points); }
#endif // wxUSE_SPLINES
wxDEPRECATED( void GetLogicalOrigin(long *x, long *y) const );
wxDEPRECATED( void GetDeviceOrigin(long *x, long *y) const );
wxDEPRECATED( void GetClippingBox(long *x, long *y, long *w, long *h) const );
+
#endif // WXWIN_COMPATIBILITY_2_8
+#ifdef __WXMSW__
+ WXHDC GetHDC() const;
+#endif // __WXMSW__
protected:
- wxDCImpl *m_pimpl;
+ // ctor takes ownership of the pointer
+ wxDC(wxDCImpl *pimpl) : m_pimpl(pimpl) { }
+
+ wxDCImpl * const m_pimpl;
private:
DECLARE_ABSTRACT_CLASS(wxDC)
+ DECLARE_NO_COPY_CLASS(wxDC)
};
// ----------------------------------------------------------------------------
// restore it automatically when the object goes out of scope
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxDCTextColourChanger
+class WXDLLIMPEXP_CORE wxDCTextColourChanger
{
public:
wxDCTextColourChanger(wxDC& dc) : m_dc(dc), m_colFgOld() { }
// restore it automatically when the object goes out of scope
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxDCPenChanger
+class WXDLLIMPEXP_CORE wxDCPenChanger
{
public:
wxDCPenChanger(wxDC& dc, const wxPen& pen) : m_dc(dc), m_penOld(dc.GetPen())
// restore it automatically when the object goes out of scope
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxDCBrushChanger
+class WXDLLIMPEXP_CORE wxDCBrushChanger
{
public:
wxDCBrushChanger(wxDC& dc, const wxBrush& brush) : m_dc(dc), m_brushOld(dc.GetBrush())
// destroys it in the dtor
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxDCClipper
+class WXDLLIMPEXP_CORE wxDCClipper
{
public:
wxDCClipper(wxDC& dc, const wxRegion& r) : m_dc(dc)
- { dc.SetClippingRegion(r); }
+ { dc.SetClippingRegion(r.GetBox()); }
wxDCClipper(wxDC& dc, const wxRect& r) : m_dc(dc)
{ dc.SetClippingRegion(r.x, r.y, r.width, r.height); }
wxDCClipper(wxDC& dc, wxCoord x, wxCoord y, wxCoord w, wxCoord h) : m_dc(dc)
DECLARE_NO_COPY_CLASS(wxDCClipper)
};
+// ----------------------------------------------------------------------------
+// helper class: you can use it to temporarily change the DC font and
+// restore it automatically when the object goes out of scope
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxDCFontChanger
+{
+public:
+ wxDCFontChanger(wxDC& dc, const wxFont& font) : m_dc(dc), m_fontOld(dc.GetFont())
+ {
+ m_dc.SetFont(font);
+ }
+
+ ~wxDCFontChanger()
+ {
+ if ( m_fontOld.Ok() )
+ m_dc.SetFont(m_fontOld);
+ }
+
+private:
+ wxDC& m_dc;
+
+ wxFont m_fontOld;
+
+ DECLARE_NO_COPY_CLASS(wxDCFontChanger)
+};
+
+
#endif // _WX_DC_H_BASE_
projects / wxWidgets.git / blobdiff