X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1dd989e1bf4c3667d27b3c27a9cf64a66484ee90..9c34a216817028bc533e07873d047208a96b05a2:/include/wx/dc.h diff --git a/include/wx/dc.h b/include/wx/dc.h index 2c66232f81..031afde7c7 100644 --- a/include/wx/dc.h +++ b/include/wx/dc.h @@ -1,619 +1,1535 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: dc.h +// Name: wx/dc.h // Purpose: wxDC class // Author: Vadim Zeitlin // Modified by: // Created: 05/25/99 // RCS-ID: $Id$ -// Copyright: (c) wxWindows team +// Copyright: (c) wxWidgets team // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_DC_H_BASE_ #define _WX_DC_H_BASE_ -#ifdef __GNUG__ - #pragma interface "dcbase.h" -#endif - // ---------------------------------------------------------------------------- // headers which we must include here // ---------------------------------------------------------------------------- #include "wx/object.h" // the base class +#include "wx/intl.h" // for wxLayoutDirection #include "wx/cursor.h" // we have member variables of these classes #include "wx/font.h" // so we can't do without them #include "wx/colour.h" +#include "wx/bitmap.h" // for wxNullBitmap #include "wx/brush.h" #include "wx/pen.h" #include "wx/palette.h" +#include "wx/dynarray.h" +#include "wx/math.h" +#include "wx/image.h" +#include "wx/region.h" +#include "wx/affinematrix2d.h" + +#define wxUSE_NEW_DC 1 + +class WXDLLIMPEXP_FWD_CORE wxDC; +class WXDLLIMPEXP_FWD_CORE wxClientDC; +class WXDLLIMPEXP_FWD_CORE wxPaintDC; +class WXDLLIMPEXP_FWD_CORE wxWindowDC; +class WXDLLIMPEXP_FWD_CORE wxScreenDC; +class WXDLLIMPEXP_FWD_CORE wxMemoryDC; +class WXDLLIMPEXP_FWD_CORE wxPrinterDC; +class WXDLLIMPEXP_FWD_CORE wxPrintData; + +#if wxUSE_GRAPHICS_CONTEXT +class WXDLLIMPEXP_FWD_CORE wxGraphicsContext; +#endif + +// Logical ops +enum wxRasterOperationMode +{ + wxCLEAR, // 0 + wxXOR, // src XOR dst + wxINVERT, // NOT dst + wxOR_REVERSE, // src OR (NOT dst) + wxAND_REVERSE, // src AND (NOT dst) + wxCOPY, // src + wxAND, // src AND dst + wxAND_INVERT, // (NOT src) AND dst + wxNO_OP, // dst + wxNOR, // (NOT src) AND (NOT dst) + wxEQUIV, // (NOT src) XOR dst + wxSRC_INVERT, // (NOT src) + wxOR_INVERT, // (NOT src) OR dst + wxNAND, // (NOT src) OR (NOT dst) + wxOR, // src OR dst + wxSET // 1 +#if WXWIN_COMPATIBILITY_2_8 + ,wxROP_BLACK = wxCLEAR, + wxBLIT_BLACKNESS = wxCLEAR, + wxROP_XORPEN = wxXOR, + wxBLIT_SRCINVERT = wxXOR, + wxROP_NOT = wxINVERT, + wxBLIT_DSTINVERT = wxINVERT, + wxROP_MERGEPENNOT = wxOR_REVERSE, + wxBLIT_00DD0228 = wxOR_REVERSE, + wxROP_MASKPENNOT = wxAND_REVERSE, + wxBLIT_SRCERASE = wxAND_REVERSE, + wxROP_COPYPEN = wxCOPY, + wxBLIT_SRCCOPY = wxCOPY, + wxROP_MASKPEN = wxAND, + wxBLIT_SRCAND = wxAND, + wxROP_MASKNOTPEN = wxAND_INVERT, + wxBLIT_00220326 = wxAND_INVERT, + wxROP_NOP = wxNO_OP, + wxBLIT_00AA0029 = wxNO_OP, + wxROP_NOTMERGEPEN = wxNOR, + wxBLIT_NOTSRCERASE = wxNOR, + wxROP_NOTXORPEN = wxEQUIV, + wxBLIT_00990066 = wxEQUIV, + wxROP_NOTCOPYPEN = wxSRC_INVERT, + wxBLIT_NOTSCRCOPY = wxSRC_INVERT, + wxROP_MERGENOTPEN = wxOR_INVERT, + wxBLIT_MERGEPAINT = wxOR_INVERT, + wxROP_NOTMASKPEN = wxNAND, + wxBLIT_007700E6 = wxNAND, + wxROP_MERGEPEN = wxOR, + wxBLIT_SRCPAINT = wxOR, + wxROP_WHITE = wxSET, + wxBLIT_WHITENESS = wxSET +#endif //WXWIN_COMPATIBILITY_2_8 +}; + +// Flood styles +enum wxFloodFillStyle +{ + wxFLOOD_SURFACE = 1, + wxFLOOD_BORDER +}; + +// Mapping modes +enum wxMappingMode +{ + wxMM_TEXT = 1, + wxMM_METRIC, + wxMM_LOMETRIC, + wxMM_TWIPS, + wxMM_POINTS +}; + +// Description of text characteristics. +struct wxFontMetrics +{ + wxFontMetrics() + { + height = + ascent = + descent = + internalLeading = + externalLeading = + averageWidth = 0; + } + + int height, // Total character height. + ascent, // Part of the height above the baseline. + descent, // Part of the height below the baseline. + internalLeading, // Intra-line spacing. + externalLeading, // Inter-line spacing. + averageWidth; // Average font width, a.k.a. "x-width". +}; + +#if WXWIN_COMPATIBILITY_2_8 + +//----------------------------------------------------------------------------- +// wxDrawObject helper class +//----------------------------------------------------------------------------- + +class WXDLLIMPEXP_CORE wxDrawObject +{ +public: + wxDEPRECATED_CONSTRUCTOR(wxDrawObject)() + : m_isBBoxValid(false) + , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0) + { } + + virtual ~wxDrawObject() { } + + virtual void Draw(wxDC&) const { } + + virtual void CalcBoundingBox(wxCoord x, wxCoord y) + { + if ( m_isBBoxValid ) + { + if ( x < m_minX ) m_minX = x; + if ( y < m_minY ) m_minY = y; + if ( x > m_maxX ) m_maxX = x; + if ( y > m_maxY ) m_maxY = y; + } + else + { + m_isBBoxValid = true; + + m_minX = x; + m_minY = y; + m_maxX = x; + m_maxY = y; + } + } + + void ResetBoundingBox() + { + m_isBBoxValid = false; + + m_minX = m_maxX = m_minY = m_maxY = 0; + } + + // Get the final bounding box of the PostScript or Metafile picture. + + wxCoord MinX() const { return m_minX; } + wxCoord MaxX() const { return m_maxX; } + wxCoord MinY() const { return m_minY; } + wxCoord MaxY() const { return m_maxY; } + + //to define the type of object for derived objects + virtual int GetType()=0; + +protected: + //for boundingbox calculation + bool m_isBBoxValid:1; + //for boundingbox calculation + wxCoord m_minX, m_minY, m_maxX, m_maxY; +}; + +#endif // WXWIN_COMPATIBILITY_2_8 + + +//----------------------------------------------------------------------------- +// wxDCFactory +//----------------------------------------------------------------------------- + +class WXDLLIMPEXP_FWD_CORE wxDCImpl; + +class WXDLLIMPEXP_CORE wxDCFactory +{ +public: + wxDCFactory() {} + virtual ~wxDCFactory() {} + + virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window ) = 0; + virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window ) = 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; +#endif + + static void Set(wxDCFactory *factory); + static wxDCFactory *Get(); + +private: + static wxDCFactory *m_factory; +}; + +//----------------------------------------------------------------------------- +// wxNativeDCFactory +//----------------------------------------------------------------------------- + +class WXDLLIMPEXP_CORE wxNativeDCFactory: public wxDCFactory +{ +public: + wxNativeDCFactory() {} + + virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window ); + virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window ); + 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 +}; + +//----------------------------------------------------------------------------- +// wxDCImpl +//----------------------------------------------------------------------------- + +class WXDLLIMPEXP_CORE wxDCImpl: public wxObject +{ +public: + wxDCImpl( wxDC *owner ); + 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; + } + + virtual void* GetHandle() 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 + + virtual bool StartDoc(const wxString& WXUNUSED(message)) { return true; } + virtual void EndDoc() { } + + virtual void StartPage() { } + virtual void EndPage() { } + + // flushing the content of this dc immediately eg onto screen + virtual void Flush() { } + + // bounding box + + virtual void CalcBoundingBox(wxCoord x, wxCoord y) + { + if ( m_isBBoxValid ) + { + if ( x < m_minX ) m_minX = x; + if ( y < m_minY ) m_minY = y; + if ( x > m_maxX ) m_maxX = x; + if ( y > m_maxY ) m_maxY = y; + } + else + { + m_isBBoxValid = true; + + m_minX = x; + m_minY = y; + m_maxX = x; + m_maxY = y; + } + } + void ResetBoundingBox() + { + m_isBBoxValid = false; + + m_minX = m_maxX = m_minY = m_maxY = 0; + } + + wxCoord MinX() const { return m_minX; } + 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 void SetPen(const wxPen& pen) = 0; + virtual const wxPen& GetPen() const { return m_pen; } + + virtual void SetBrush(const wxBrush& brush) = 0; + virtual const wxBrush& GetBrush() const { return m_brush; } + + virtual void SetBackground(const wxBrush& brush) = 0; + 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 void SetTextBackground(const wxColour& colour) + { m_textBackgroundColour = colour; } + 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(wxRasterOperationMode function) = 0; + virtual wxRasterOperationMode GetLogicalFunction() const + { return m_logicalFunction; } + + // text measurement + + virtual wxCoord GetCharHeight() const = 0; + virtual wxCoord GetCharWidth() const = 0; + + // The derived classes should really override DoGetFontMetrics() to return + // the correct values in the future but for now provide a default + // implementation in terms of DoGetTextExtent() to avoid breaking the + // compilation of all other ports as wxMSW is the only one to implement it. + virtual void DoGetFontMetrics(int *height, + int *ascent, + int *descent, + int *internalLeading, + int *externalLeading, + int *averageWidth) const; + + virtual void DoGetTextExtent(const wxString& string, + wxCoord *x, wxCoord *y, + wxCoord *descent = NULL, + wxCoord *externalLeading = NULL, + const wxFont *theFont = NULL) const = 0; + virtual void GetMultiLineTextExtent(const wxString& string, + wxCoord *width, + wxCoord *height, + wxCoord *heightLine = NULL, + const wxFont *font = NULL) const; + virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const; + + // clearing + + virtual void Clear() = 0; + + // clipping + + // Note that this pure virtual method has an implementation that updates + // the values returned by DoGetClippingBox() and so can be called from the + // derived class overridden version if it makes sense (i.e. if the clipping + // box coordinates are not already updated in some other way). + virtual void DoSetClippingRegion(wxCoord x, wxCoord y, + wxCoord w, wxCoord h) = 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_clipX1; + if ( y ) + *y = m_clipY1; + if ( w ) + *w = m_clipX2 - m_clipX1; + if ( h ) + *h = m_clipY2 - m_clipY1; + } + + virtual void DestroyClippingRegion() { ResetClipping(); } + + + // coordinates conversions and transforms + + virtual wxCoord DeviceToLogicalX(wxCoord x) const; + virtual wxCoord DeviceToLogicalY(wxCoord y) const; + virtual wxCoord DeviceToLogicalXRel(wxCoord x) const; + virtual wxCoord DeviceToLogicalYRel(wxCoord y) const; + virtual wxCoord LogicalToDeviceX(wxCoord x) const; + virtual wxCoord LogicalToDeviceY(wxCoord y) const; + virtual wxCoord LogicalToDeviceXRel(wxCoord x) const; + virtual wxCoord LogicalToDeviceYRel(wxCoord y) const; + + virtual void SetMapMode(wxMappingMode mode); + virtual wxMappingMode GetMapMode() const { return m_mappingMode; } + + virtual void SetUserScale(double x, double y); + virtual void GetUserScale(double *x, double *y) const + { + if ( x ) *x = m_userScaleX; + if ( y ) *y = m_userScaleY; + } + + virtual void SetLogicalScale(double x, double y); + virtual void GetLogicalScale(double *x, double *y) const + { + if ( x ) *x = m_logicalScaleX; + if ( y ) *y = m_logicalScaleY; + } + + virtual void SetLogicalOrigin(wxCoord x, wxCoord y); + virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const + { + if ( x ) *x = m_logicalOriginX; + if ( y ) *y = m_logicalOriginY; + } + + virtual void SetDeviceOrigin(wxCoord x, wxCoord y); + virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const + { + if ( x ) *x = m_deviceOriginX; + if ( y ) *y = m_deviceOriginY; + } + +#if wxUSE_DC_TRANSFORM_MATRIX + // Transform matrix support is not available in most ports right now + // (currently only wxMSW provides it) so do nothing in these methods by + // default. + virtual bool CanUseTransformMatrix() const + { return false; } + virtual bool SetTransformMatrix(const wxAffineMatrix2D& WXUNUSED(matrix)) + { return false; } + virtual wxAffineMatrix2D GetTransformMatrix() const + { return wxAffineMatrix2D(); } + virtual void ResetTransformMatrix() + { } +#endif // wxUSE_DC_TRANSFORM_MATRIX + + virtual void SetDeviceLocalOrigin( wxCoord x, wxCoord y ); + + virtual void ComputeScaleAndOrigin(); + + // this needs to overidden if the axis is inverted + virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp); + + virtual double GetContentScaleFactor() const { return m_contentScaleFactor; } + +#ifdef __WXMSW__ + // Native Windows functions using the underlying HDC don't honour GDI+ + // transformations which may be applied to it. Using this function we can + // transform the coordinates manually before passing them to such functions + // (as in e.g. wxRendererMSW code). It doesn't do anything if this is not a + // wxGCDC. + virtual wxRect MSWApplyGDIPlusTransform(const wxRect& r) const + { + return r; + } +#endif // __WXMSW__ + + + // --------------------------------------------------------- + // the actual drawing API + + virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, + wxFloodFillStyle style = wxFLOOD_SURFACE) = 0; + + virtual void DoGradientFillLinear(const wxRect& rect, + const wxColour& initialColour, + const wxColour& destColour, + wxDirection nDirection = wxEAST); + + virtual void DoGradientFillConcentric(const wxRect& rect, + const wxColour& initialColour, + const wxColour& destColour, + const wxPoint& circleCenter); + + virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0; + + virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0; + virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) = 0; + + virtual void DoDrawArc(wxCoord x1, wxCoord y1, + wxCoord x2, wxCoord y2, + wxCoord xc, wxCoord yc) = 0; + virtual void DoDrawCheckMark(wxCoord x, wxCoord y, + wxCoord width, wxCoord height); + virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, + double sa, double ea) = 0; + + virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) = 0; + virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y, + wxCoord width, wxCoord height, + double radius) = 0; + virtual void DoDrawEllipse(wxCoord x, wxCoord y, + wxCoord width, wxCoord height) = 0; + + virtual void DoCrossHair(wxCoord x, wxCoord y) = 0; + + virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0; + virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, + bool useMask = false) = 0; + + virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0; + virtual void DoDrawRotatedText(const wxString& text, + wxCoord x, wxCoord y, double angle) = 0; + + virtual bool DoBlit(wxCoord xdest, wxCoord ydest, + wxCoord width, wxCoord height, + wxDC *source, + wxCoord xsrc, wxCoord ysrc, + wxRasterOperationMode rop = wxCOPY, + bool useMask = false, + wxCoord xsrcMask = wxDefaultCoord, + wxCoord ysrcMask = wxDefaultCoord) = 0; + + virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest, + wxCoord dstWidth, wxCoord dstHeight, + wxDC *source, + wxCoord xsrc, wxCoord ysrc, + wxCoord srcWidth, wxCoord srcHeight, + wxRasterOperationMode rop = wxCOPY, + bool useMask = false, + wxCoord xsrcMask = wxDefaultCoord, + wxCoord ysrcMask = wxDefaultCoord); + + virtual wxBitmap DoGetAsBitmap(const wxRect *WXUNUSED(subrect)) const + { return wxNullBitmap; } + + + virtual void DoDrawLines(int n, const wxPoint points[], + wxCoord xoffset, wxCoord yoffset ) = 0; + virtual void DrawLines(const wxPointList *list, + wxCoord xoffset, wxCoord yoffset ); + + virtual void DoDrawPolygon(int n, const wxPoint points[], + wxCoord xoffset, wxCoord yoffset, + wxPolygonFillMode fillStyle = wxODDEVEN_RULE) = 0; + virtual void DoDrawPolyPolygon(int n, const int count[], const wxPoint points[], + wxCoord xoffset, wxCoord yoffset, + wxPolygonFillMode fillStyle); + void DrawPolygon(const wxPointList *list, + wxCoord xoffset, wxCoord yoffset, + wxPolygonFillMode fillStyle ); + + +#if wxUSE_SPLINES + void DrawSpline(wxCoord x1, wxCoord y1, + wxCoord x2, wxCoord y2, + wxCoord x3, wxCoord y3); + void DrawSpline(int n, const 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() const + { int w = 0; int h = 0; DoGetSize( &w, &h ); return wxRect(0,0,w,h); } + + virtual int GetResolution() const + { return -1; } + +#if wxUSE_GRAPHICS_CONTEXT + virtual wxGraphicsContext* GetGraphicsContext() const + { return NULL; } + virtual void SetGraphicsContext( wxGraphicsContext* WXUNUSED(ctx) ) + {} +#endif + +private: + wxDC *m_owner; + +protected: + // unset clipping variables (after clipping region was destroyed) + void ResetClipping() + { + m_clipping = false; + + 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; + bool m_clipping:1; + bool m_isInteractive:1; + bool m_isBBoxValid:1; + + // coordinate system variables + + 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 + // used toplevel window's origin) and + // e.g. for Postscript, where the native + // origin in the bottom left corner. + double m_logicalScaleX, m_logicalScaleY; + double m_userScaleX, m_userScaleY; + double m_scaleX, m_scaleY; // calculated from logical scale and user scale + + int m_signX, m_signY; // Used by SetAxisOrientation() to invert the axes + + double m_contentScaleFactor; // used by high resolution displays (retina) + + // 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; + + wxRasterOperationMode m_logicalFunction; + int m_backgroundMode; + wxMappingMode m_mappingMode; + + wxPen m_pen; + wxBrush m_brush; + wxBrush m_backgroundBrush; + wxColour m_textForegroundColour; + wxColour m_textBackgroundColour; + wxFont m_font; + +#if wxUSE_PALETTE + wxPalette m_palette; + bool m_hasCustomPalette; +#endif // wxUSE_PALETTE + +private: + DECLARE_ABSTRACT_CLASS(wxDCImpl) +}; + + +class WXDLLIMPEXP_CORE wxDC : public wxObject +{ +public: + // copy attributes (font, colours and writing direction) from another DC + void CopyAttributes(const wxDC& dc); + + virtual ~wxDC() { delete m_pimpl; } + + wxDCImpl *GetImpl() + { return m_pimpl; } + const wxDCImpl *GetImpl() const + { return m_pimpl; } + + wxWindow *GetWindow() const + { return m_pimpl->GetWindow(); } + + void *GetHandle() const + { return m_pimpl->GetHandle(); } + + bool IsOk() const + { return m_pimpl && m_pimpl->IsOk(); } + + // query capabilities + + 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 + { return m_pimpl->GetSize(); } + + void GetSizeMM(int* width, int* height) const + { m_pimpl->DoGetSizeMM(width, height); } + wxSize GetSizeMM() const + { + int w, h; + 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() const + { return m_pimpl->GetResolution(); } + + double GetContentScaleFactor() const + { return m_pimpl->GetContentScaleFactor(); } + + // Right-To-Left (RTL) modes -#include "wx/list.h" // we use wxList in inline functions + void SetLayoutDirection(wxLayoutDirection dir) + { m_pimpl->SetLayoutDirection( dir ); } + wxLayoutDirection GetLayoutDirection() const + { return m_pimpl->GetLayoutDirection(); } -// --------------------------------------------------------------------------- -// global variables -// --------------------------------------------------------------------------- + // page and document -WXDLLEXPORT_DATA(extern int) wxPageNumber; + bool StartDoc(const wxString& message) + { return m_pimpl->StartDoc(message); } + void EndDoc() + { m_pimpl->EndDoc(); } -// --------------------------------------------------------------------------- -// wxDC is the device context - object on which any drawing is done -// --------------------------------------------------------------------------- + void StartPage() + { m_pimpl->StartPage(); } + void EndPage() + { m_pimpl->EndPage(); } -class WXDLLEXPORT wxDCBase : public wxObject -{ - DECLARE_ABSTRACT_CLASS(wxDCBase) + // bounding box -public: - wxDCBase() + 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->MaxX(); } + wxCoord MinY() 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 + { return m_pimpl->GetFont(); } + + void SetPen(const wxPen& pen) + { m_pimpl->SetPen( pen ); } + 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 + { return m_pimpl->GetBackgroundMode(); } + + void SetTextForeground(const wxColour& colour) + { 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 + { return m_pimpl->GetTextBackground(); } + +#if wxUSE_PALETTE + void SetPalette(const wxPalette& palette) + { m_pimpl->SetPalette(palette); } +#endif // wxUSE_PALETTE + + // logical functions + + void SetLogicalFunction(wxRasterOperationMode function) + { m_pimpl->SetLogicalFunction(function); } + wxRasterOperationMode GetLogicalFunction() const + { return m_pimpl->GetLogicalFunction(); } + + // text measurement + + wxCoord GetCharHeight() const + { return m_pimpl->GetCharHeight(); } + wxCoord GetCharWidth() const + { return m_pimpl->GetCharWidth(); } + + wxFontMetrics GetFontMetrics() const { - m_clipping = FALSE; - m_ok = TRUE; + wxFontMetrics fm; + m_pimpl->DoGetFontMetrics(&fm.height, &fm.ascent, &fm.descent, + &fm.internalLeading, &fm.externalLeading, + &fm.averageWidth); + return fm; + } - m_minX = m_minY = m_maxX = m_maxY = 0; + void GetTextExtent(const wxString& string, + wxCoord *x, wxCoord *y, + wxCoord *descent = NULL, + wxCoord *externalLeading = NULL, + const wxFont *theFont = NULL) const + { m_pimpl->DoGetTextExtent(string, x, y, descent, externalLeading, theFont); } - m_signX = m_signY = 1; + wxSize GetTextExtent(const wxString& string) const + { + wxCoord w, h; + m_pimpl->DoGetTextExtent(string, &w, &h); + return wxSize(w, h); + } - m_logicalOriginX = m_logicalOriginY = - m_deviceOriginX = m_deviceOriginY = 0; + 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 ); } - m_logicalScaleX = m_logicalScaleY = - m_userScaleX = m_userScaleY = - m_scaleX = m_scaleY = 1.0; + wxSize GetMultiLineTextExtent(const wxString& string) const + { + wxCoord w, h; + m_pimpl->GetMultiLineTextExtent(string, &w, &h); + return wxSize(w, h); + } - m_logicalFunction = -1; + bool GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const + { return m_pimpl->DoGetPartialTextExtents(text, widths); } - m_backgroundMode = wxTRANSPARENT; + // clearing - m_mappingMode = wxMM_TEXT; + void Clear() + { m_pimpl->Clear(); } - m_backgroundBrush = *wxTRANSPARENT_BRUSH; + // clipping - m_textForegroundColour = *wxBLACK; - m_textBackgroundColour = *wxWHITE; + void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height) + { m_pimpl->DoSetClippingRegion(x, y, width, height); } + void SetClippingRegion(const wxPoint& pt, const wxSize& sz) + { 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); } - m_colour = wxColourDisplay(); - } + // 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); } - ~wxDCBase() { } + // 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); ) - virtual void BeginDrawing() { } - virtual void EndDrawing() { } + void DestroyClippingRegion() + { m_pimpl->DestroyClippingRegion(); } - // graphic primitives - // ------------------ + void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const + { 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 + { return m_pimpl->DeviceToLogicalX(x); } + wxCoord DeviceToLogicalY(wxCoord y) const + { return m_pimpl->DeviceToLogicalY(y); } + wxCoord DeviceToLogicalXRel(wxCoord x) const + { return m_pimpl->DeviceToLogicalXRel(x); } + wxCoord DeviceToLogicalYRel(wxCoord y) const + { return m_pimpl->DeviceToLogicalYRel(y); } + wxCoord LogicalToDeviceX(wxCoord x) const + { return m_pimpl->LogicalToDeviceX(x); } + wxCoord LogicalToDeviceY(wxCoord y) const + { return m_pimpl->LogicalToDeviceY(y); } + wxCoord LogicalToDeviceXRel(wxCoord x) const + { return m_pimpl->LogicalToDeviceXRel(x); } + wxCoord LogicalToDeviceYRel(wxCoord y) const + { return m_pimpl->LogicalToDeviceYRel(y); } + + void SetMapMode(wxMappingMode mode) + { m_pimpl->SetMapMode(mode); } + wxMappingMode GetMapMode() const + { return m_pimpl->GetMapMode(); } + + void SetUserScale(double x, double y) + { m_pimpl->SetUserScale(x,y); } + void GetUserScale(double *x, double *y) const + { m_pimpl->GetUserScale( x, y ); } + + void SetLogicalScale(double x, double y) + { m_pimpl->SetLogicalScale( x, y ); } + void GetLogicalScale(double *x, double *y) const + { m_pimpl->GetLogicalScale( x, y ); } + + void SetLogicalOrigin(wxCoord x, wxCoord y) + { m_pimpl->SetLogicalOrigin(x,y); } + void GetLogicalOrigin(wxCoord *x, wxCoord *y) const + { m_pimpl->DoGetLogicalOrigin(x, y); } + wxPoint GetLogicalOrigin() const + { wxCoord x, y; m_pimpl->DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); } - void FloodFill(wxCoord x, wxCoord y, const wxColour& col, - int style = wxFLOOD_SURFACE) - { DoFloodFill(x, y, col, style); } - void FloodFill(const wxPoint& pt, const wxColour& col, - int style = wxFLOOD_SURFACE) - { DoFloodFill(pt.x, pt.y, col, style); } + void SetDeviceOrigin(wxCoord x, wxCoord y) + { m_pimpl->SetDeviceOrigin( x, y); } + void GetDeviceOrigin(wxCoord *x, wxCoord *y) const + { m_pimpl->DoGetDeviceOrigin(x, y); } + wxPoint GetDeviceOrigin() const + { wxCoord x, y; m_pimpl->DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); } + + void SetAxisOrientation(bool xLeftRight, bool yBottomUp) + { m_pimpl->SetAxisOrientation(xLeftRight, yBottomUp); } + +#if wxUSE_DC_TRANSFORM_MATRIX + bool CanUseTransformMatrix() const + { return m_pimpl->CanUseTransformMatrix(); } + + bool SetTransformMatrix(const wxAffineMatrix2D &matrix) + { return m_pimpl->SetTransformMatrix(matrix); } + + wxAffineMatrix2D GetTransformMatrix() const + { return m_pimpl->GetTransformMatrix(); } + + void ResetTransformMatrix() + { m_pimpl->ResetTransformMatrix(); } +#endif // wxUSE_DC_TRANSFORM_MATRIX + + // mostly internal + void SetDeviceLocalOrigin( wxCoord x, wxCoord y ) + { m_pimpl->SetDeviceLocalOrigin( x, y ); } + + + // ----------------------------------------------- + // the actual drawing API + + bool FloodFill(wxCoord x, wxCoord y, const wxColour& col, + wxFloodFillStyle style = wxFLOOD_SURFACE) + { return m_pimpl->DoFloodFill(x, y, col, style); } + bool FloodFill(const wxPoint& pt, const wxColour& col, + wxFloodFillStyle style = wxFLOOD_SURFACE) + { return m_pimpl->DoFloodFill(pt.x, pt.y, col, style); } + + // fill the area specified by rect with a radial gradient, starting from + // initialColour in the centre of the cercle and fading to destColour. + void GradientFillConcentric(const wxRect& rect, + const wxColour& initialColour, + const wxColour& destColour) + { m_pimpl->DoGradientFillConcentric( rect, initialColour, destColour, + wxPoint(rect.GetWidth() / 2, + rect.GetHeight() / 2)); } + + void GradientFillConcentric(const wxRect& rect, + const wxColour& initialColour, + const wxColour& destColour, + const wxPoint& circleCenter) + { m_pimpl->DoGradientFillConcentric(rect, initialColour, destColour, circleCenter); } + + // fill the area specified by rect with a linear gradient + void GradientFillLinear(const wxRect& rect, + const wxColour& initialColour, + const wxColour& destColour, + wxDirection nDirection = wxEAST) + { m_pimpl->DoGradientFillLinear(rect, initialColour, destColour, nDirection); } bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const - { return DoGetPixel(x, y, col); } + { return m_pimpl->DoGetPixel(x, y, col); } bool GetPixel(const wxPoint& pt, wxColour *col) const - { return DoGetPixel(pt.x, pt.y, col); } + { return m_pimpl->DoGetPixel(pt.x, pt.y, col); } void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) - { DoDrawLine(x1, y1, x2, y2); } + { m_pimpl->DoDrawLine(x1, y1, x2, y2); } void DrawLine(const wxPoint& pt1, const wxPoint& pt2) - { DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); } + { m_pimpl->DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); } void CrossHair(wxCoord x, wxCoord y) - { DoCrossHair(x, y); } + { m_pimpl->DoCrossHair(x, y); } void CrossHair(const wxPoint& pt) - { DoCrossHair(pt.x, pt.y); } + { m_pimpl->DoCrossHair(pt.x, pt.y); } void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc) - { DoDrawArc(x1, y1, x2, y2, xc, yc); } + { m_pimpl->DoDrawArc(x1, y1, x2, y2, xc, yc); } void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre) - { DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); } + { m_pimpl->DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); } + + void DrawCheckMark(wxCoord x, wxCoord y, + wxCoord width, wxCoord height) + { m_pimpl->DoDrawCheckMark(x, y, width, height); } + void DrawCheckMark(const wxRect& rect) + { m_pimpl->DoDrawCheckMark(rect.x, rect.y, rect.width, rect.height); } void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea) - { DoDrawEllipticArc(x, y, w, h, sa, ea); } + { m_pimpl->DoDrawEllipticArc(x, y, w, h, sa, ea); } void DrawEllipticArc(const wxPoint& pt, const wxSize& sz, double sa, double ea) - { DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); } + { m_pimpl->DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); } void DrawPoint(wxCoord x, wxCoord y) - { DoDrawPoint(x, y); } + { m_pimpl->DoDrawPoint(x, y); } void DrawPoint(const wxPoint& pt) - { DoDrawPoint(pt.x, pt.y); } + { m_pimpl->DoDrawPoint(pt.x, pt.y); } - void DrawLines(int n, wxPoint points[], + void DrawLines(int n, const wxPoint points[], wxCoord xoffset = 0, wxCoord yoffset = 0) - { DoDrawLines(n, points, xoffset, yoffset); } - void DrawLines(const wxList *list, - wxCoord xoffset = 0, wxCoord yoffset = 0); + { m_pimpl->DoDrawLines(n, points, xoffset, yoffset); } + void DrawLines(const wxPointList *list, + wxCoord xoffset = 0, wxCoord yoffset = 0) + { m_pimpl->DrawLines( list, xoffset, yoffset ); } +#if WXWIN_COMPATIBILITY_2_8 + wxDEPRECATED( void DrawLines(const wxList *list, + wxCoord xoffset = 0, wxCoord yoffset = 0) ); +#endif // WXWIN_COMPATIBILITY_2_8 - void DrawPolygon(int n, wxPoint points[], + void DrawPolygon(int n, const wxPoint points[], wxCoord xoffset = 0, wxCoord yoffset = 0, - int fillStyle = wxODDEVEN_RULE) - { DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); } - - void DrawPolygon(const wxList *list, + wxPolygonFillMode fillStyle = wxODDEVEN_RULE) + { m_pimpl->DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); } + void DrawPolygon(const wxPointList *list, wxCoord xoffset = 0, wxCoord yoffset = 0, - int fillStyle = wxODDEVEN_RULE); + wxPolygonFillMode fillStyle = wxODDEVEN_RULE) + { m_pimpl->DrawPolygon( list, xoffset, yoffset, fillStyle ); } + void DrawPolyPolygon(int n, const int count[], const wxPoint points[], + wxCoord xoffset = 0, wxCoord yoffset = 0, + wxPolygonFillMode fillStyle = wxODDEVEN_RULE) + { m_pimpl->DoDrawPolyPolygon(n, count, points, xoffset, yoffset, fillStyle); } +#if WXWIN_COMPATIBILITY_2_8 + wxDEPRECATED( void DrawPolygon(const wxList *list, + wxCoord xoffset = 0, wxCoord yoffset = 0, + wxPolygonFillMode fillStyle = wxODDEVEN_RULE) ); +#endif // WXWIN_COMPATIBILITY_2_8 void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) - { DoDrawRectangle(x, y, width, height); } + { m_pimpl->DoDrawRectangle(x, y, width, height); } void DrawRectangle(const wxPoint& pt, const wxSize& sz) - { DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); } + { m_pimpl->DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); } void DrawRectangle(const wxRect& rect) - { DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); } + { m_pimpl->DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); } void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius) - { DoDrawRoundedRectangle(x, y, width, height, radius); } + { m_pimpl->DoDrawRoundedRectangle(x, y, width, height, radius); } void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz, double radius) - { DoDrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); } + { m_pimpl->DoDrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); } void DrawRoundedRectangle(const wxRect& r, double radius) - { DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); } + { m_pimpl->DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); } void DrawCircle(wxCoord x, wxCoord y, wxCoord radius) - { DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); } + { m_pimpl->DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); } + void DrawCircle(const wxPoint& pt, wxCoord radius) + { m_pimpl->DoDrawEllipse(pt.x - radius, pt.y - radius, 2*radius, 2*radius); } + void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) - { DoDrawEllipse(x, y, width, height); } + { m_pimpl->DoDrawEllipse(x, y, width, height); } void DrawEllipse(const wxPoint& pt, const wxSize& sz) - { DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); } + { m_pimpl->DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); } void DrawEllipse(const wxRect& rect) - { DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); } + { m_pimpl->DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); } void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) - { DoDrawIcon(icon, x, y); } + { m_pimpl->DoDrawIcon(icon, x, y); } void DrawIcon(const wxIcon& icon, const wxPoint& pt) - { DoDrawIcon(icon, pt.x, pt.y); } + { m_pimpl->DoDrawIcon(icon, pt.x, pt.y); } void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, - bool useMask = FALSE) - { DoDrawBitmap(bmp, x, y, useMask); } + bool useMask = false) + { m_pimpl->DoDrawBitmap(bmp, x, y, useMask); } void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt, - bool useMask = FALSE) - { DoDrawBitmap(bmp, pt.x, pt.y, useMask); } + bool useMask = false) + { m_pimpl->DoDrawBitmap(bmp, pt.x, pt.y, useMask); } void DrawText(const wxString& text, wxCoord x, wxCoord y) - { DoDrawText(text, x, y); } + { m_pimpl->DoDrawText(text, x, y); } void DrawText(const wxString& text, const wxPoint& pt) - { DoDrawText(text, pt.x, pt.y); } + { m_pimpl->DoDrawText(text, pt.x, pt.y); } + + void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle) + { m_pimpl->DoDrawRotatedText(text, x, y, angle); } + void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle) + { m_pimpl->DoDrawRotatedText(text, pt.x, pt.y, angle); } + + // this version puts both optional bitmap and the text into the given + // rectangle and aligns is as specified by alignment parameter; it also + // will emphasize the character with the given index if it is != -1 and + // return the bounding rectangle if required + void DrawLabel(const wxString& text, + const wxBitmap& image, + const wxRect& rect, + int alignment = wxALIGN_LEFT | wxALIGN_TOP, + int indexAccel = -1, + wxRect *rectBounding = NULL); + + void DrawLabel(const wxString& text, const wxRect& rect, + int alignment = wxALIGN_LEFT | wxALIGN_TOP, + int indexAccel = -1) + { DrawLabel(text, wxNullBitmap, rect, alignment, indexAccel); } bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, - int rop = wxCOPY, bool useMask = FALSE) + wxRasterOperationMode rop = wxCOPY, bool useMask = false, + wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord) { - return DoBlit(xdest, ydest, width, height, - source, xsrc, ysrc, rop, useMask); + return m_pimpl->DoBlit(xdest, ydest, width, height, + source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask); } bool Blit(const wxPoint& destPt, const wxSize& sz, wxDC *source, const wxPoint& srcPt, - int rop = wxCOPY, bool useMask = FALSE) + wxRasterOperationMode rop = wxCOPY, bool useMask = false, + const wxPoint& srcPtMask = wxDefaultPosition) + { + return m_pimpl->DoBlit(destPt.x, destPt.y, sz.x, sz.y, + source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y); + } + + bool StretchBlit(wxCoord dstX, wxCoord dstY, + wxCoord dstWidth, wxCoord dstHeight, + wxDC *source, + wxCoord srcX, wxCoord srcY, + wxCoord srcWidth, wxCoord srcHeight, + wxRasterOperationMode rop = wxCOPY, bool useMask = false, + wxCoord srcMaskX = wxDefaultCoord, wxCoord srcMaskY = wxDefaultCoord) + { + return m_pimpl->DoStretchBlit(dstX, dstY, dstWidth, dstHeight, + source, srcX, srcY, srcWidth, srcHeight, rop, useMask, srcMaskX, srcMaskY); + } + bool StretchBlit(const wxPoint& dstPt, const wxSize& dstSize, + wxDC *source, const wxPoint& srcPt, const wxSize& srcSize, + wxRasterOperationMode rop = wxCOPY, bool useMask = false, + const wxPoint& srcMaskPt = wxDefaultPosition) + { + return m_pimpl->DoStretchBlit(dstPt.x, dstPt.y, dstSize.x, dstSize.y, + source, srcPt.x, srcPt.y, srcSize.x, srcSize.y, rop, useMask, srcMaskPt.x, srcMaskPt.y); + } + + wxBitmap GetAsBitmap(const wxRect *subrect = (const wxRect *) NULL) const { - return DoBlit(destPt.x, destPt.y, sz.x, sz.y, - source, srcPt.x, srcPt.y, rop, useMask); + return m_pimpl->DoGetAsBitmap(subrect); } #if wxUSE_SPLINES - // TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?) void DrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, - wxCoord x3, wxCoord y3); - void DrawSpline(int n, wxPoint points[]); - - void DrawSpline(wxList *points) { DoDrawSpline(points); } + wxCoord x3, wxCoord y3) + { m_pimpl->DrawSpline(x1,y1,x2,y2,x3,y3); } + void DrawSpline(int n, const wxPoint points[]) + { m_pimpl->DrawSpline(n,points); } + void DrawSpline(const wxPointList *points) + { m_pimpl->DrawSpline(points); } #endif // wxUSE_SPLINES - // global DC operations - // -------------------- - - virtual void Clear() = 0; - - virtual bool StartDoc(const wxString& WXUNUSED(message)) { return TRUE; } - virtual void EndDoc() { } - - virtual void StartPage() { } - virtual void EndPage() { } - - // set objects to use for drawing - // ------------------------------ - - virtual void SetFont(const wxFont& font) = 0; - virtual void SetPen(const wxPen& pen) = 0; - virtual void SetBrush(const wxBrush& brush) = 0; - virtual void SetBackground(const wxBrush& brush) = 0; - virtual void SetBackgroundMode(int mode) = 0; - virtual void SetPalette(const wxPalette& palette) = 0; - // clipping region - // --------------- +#if WXWIN_COMPATIBILITY_2_8 + // for compatibility with the old code when wxCoord was long everywhere + wxDEPRECATED( void GetTextExtent(const wxString& string, + long *x, long *y, + long *descent = NULL, + long *externalLeading = NULL, + const wxFont *theFont = NULL) const ); + 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 ); + + wxDEPRECATED( void DrawObject(wxDrawObject* drawobject) ); +#endif // WXWIN_COMPATIBILITY_2_8 + +#ifdef __WXMSW__ + // GetHDC() is the simplest way to retrieve an HDC From a wxDC but only + // works if this wxDC is GDI-based and fails for GDI+ contexts (and + // anything else without HDC, e.g. wxPostScriptDC) + WXHDC GetHDC() const; + + // don't use these methods manually, use GetTempHDC() instead + virtual WXHDC AcquireHDC() { return GetHDC(); } + virtual void ReleaseHDC(WXHDC WXUNUSED(hdc)) { } + + // helper class holding the result of GetTempHDC() with std::auto_ptr<>-like + // semantics, i.e. it is moved when copied + class TempHDC + { + public: + TempHDC(wxDC& dc) + : m_dc(dc), + m_hdc(dc.AcquireHDC()) + { + } - void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height) - { DoSetClippingRegion(x, y, width, height); } - void SetClippingRegion(const wxPoint& pt, const wxSize& sz) - { DoSetClippingRegion(pt.x, pt.y, sz.x, sz.y); } - void SetClippingRegion(const wxRect& rect) - { DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height); } - void SetClippingRegion(const wxRegion& region) - { DoSetClippingRegionAsRegion(region); } + TempHDC(const TempHDC& thdc) + : m_dc(thdc.m_dc), + m_hdc(thdc.m_hdc) + { + const_cast(thdc).m_hdc = 0; + } - virtual void DestroyClippingRegion() = 0; + ~TempHDC() + { + if ( m_hdc ) + m_dc.ReleaseHDC(m_hdc); + } - void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const - { DoGetClippingBox(x, y, w, h); } - void GetClippingBox(wxRect& rect) const - { DoGetClippingBox(&rect.x, &rect.y, &rect.width, &rect.height); } + WXHDC GetHDC() const { return m_hdc; } - // text extent - // ----------- + private: + wxDC& m_dc; + WXHDC m_hdc; - virtual wxCoord GetCharHeight() const = 0; - virtual wxCoord GetCharWidth() const = 0; - - void GetTextExtent(const wxString& string, - wxCoord *x, wxCoord *y, - wxCoord *descent = NULL, - wxCoord *externalLeading = NULL, - wxFont *theFont = NULL) const - { DoGetTextExtent(string, x, y, descent, externalLeading, theFont); } + wxDECLARE_NO_ASSIGN_CLASS(TempHDC); + }; - // size and resolution - // ------------------- + // GetTempHDC() also works for wxGCDC (but still not for wxPostScriptDC &c) + TempHDC GetTempHDC() { return TempHDC(*this); } +#endif // __WXMSW__ - // in device units - void GetSize(int *width, int *height) const - { DoGetSize(width, height); } - wxSize GetSize() const +#if wxUSE_GRAPHICS_CONTEXT + virtual wxGraphicsContext* GetGraphicsContext() const { - int w, h; - DoGetSize(&w, &h); - - return wxSize(w, h); + return m_pimpl->GetGraphicsContext(); } - - // in mm - void GetSizeMM(int* width, int* height) const - { DoGetSizeMM(width, height); } - wxSize GetSizeMM() const + virtual void SetGraphicsContext( wxGraphicsContext* ctx ) { - int w, h; - DoGetSizeMM(&w, &h); - - return wxSize(w, h); + m_pimpl->SetGraphicsContext(ctx); } +#endif - // coordinates conversions - // ----------------------- - - // This group of functions does actual conversion of the input, as you'd - // expect. - wxCoord DeviceToLogicalX(wxCoord x) const; - wxCoord DeviceToLogicalY(wxCoord y) const; - wxCoord DeviceToLogicalXRel(wxCoord x) const; - wxCoord DeviceToLogicalYRel(wxCoord y) const; - wxCoord LogicalToDeviceX(wxCoord x) const; - wxCoord LogicalToDeviceY(wxCoord y) const; - wxCoord LogicalToDeviceXRel(wxCoord x) const; - wxCoord LogicalToDeviceYRel(wxCoord y) const; - - // query DC capabilities - // --------------------- - - virtual bool CanDrawBitmap() const = 0; - virtual bool CanGetTextExtent() const = 0; - - // colour depth - virtual int GetDepth() const = 0; - - // Resolution in Pixels per inch - virtual wxSize GetPPI() const = 0; - - virtual bool Ok() const { return m_ok; } - - // accessors - // --------- +protected: + // ctor takes ownership of the pointer + wxDC(wxDCImpl *pimpl) : m_pimpl(pimpl) { } - // const... - const wxBrush& GetBackground() const { return m_backgroundBrush; } - const wxBrush& GetBrush() const { return m_brush; } - const wxFont& GetFont() const { return m_font; } - const wxPen& GetPen() const { return m_pen; } - const wxColour& GetTextBackground() const { return m_textBackgroundColour; } - const wxColour& GetTextForeground() const { return m_textForegroundColour; } + wxDCImpl * const m_pimpl; - // ... and non const - wxBrush& GetBackground() { return m_backgroundBrush; } - wxBrush& GetBrush() { return m_brush; } - wxFont& GetFont() { return m_font; } - wxPen& GetPen() { return m_pen; } - wxColour& GetTextBackground() { return m_textBackgroundColour; } - wxColour& GetTextForeground() { return m_textForegroundColour; } +private: + DECLARE_ABSTRACT_CLASS(wxDC) + wxDECLARE_NO_COPY_CLASS(wxDC); +}; - virtual void SetTextForeground(const wxColour& colour) - { m_textForegroundColour = colour; } - virtual void SetTextBackground(const wxColour& colour) - { m_textBackgroundColour = colour; } +// ---------------------------------------------------------------------------- +// helper class: you can use it to temporarily change the DC text colour and +// restore it automatically when the object goes out of scope +// ---------------------------------------------------------------------------- - int GetMapMode() const { return m_mappingMode; } - virtual void SetMapMode(int mode) = 0; +class WXDLLIMPEXP_CORE wxDCTextColourChanger +{ +public: + wxDCTextColourChanger(wxDC& dc) : m_dc(dc), m_colFgOld() { } - virtual void GetUserScale(double *x, double *y) const + wxDCTextColourChanger(wxDC& dc, const wxColour& col) : m_dc(dc) { - if ( x ) *x = m_userScaleX; - if ( y ) *y = m_userScaleY; + Set(col); } - virtual void SetUserScale(double x, double y) = 0; - virtual void GetLogicalScale(double *x, double *y) + ~wxDCTextColourChanger() { - if ( x ) *x = m_logicalScaleX; - if ( y ) *y = m_logicalScaleY; + if ( m_colFgOld.IsOk() ) + m_dc.SetTextForeground(m_colFgOld); } - virtual void SetLogicalScale(double x, double y) + + void Set(const wxColour& col) { - m_logicalScaleX = x; - m_logicalScaleY = y; + if ( !m_colFgOld.IsOk() ) + m_colFgOld = m_dc.GetTextForeground(); + m_dc.SetTextForeground(col); } - void GetLogicalOrigin(wxCoord *x, wxCoord *y) const - { DoGetLogicalOrigin(x, y); } - wxPoint GetLogicalOrigin() const - { wxCoord x, y; DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); } - virtual void SetLogicalOrigin(wxCoord x, wxCoord y) = 0; - - void GetDeviceOrigin(wxCoord *x, wxCoord *y) const - { DoGetDeviceOrigin(x, y); } - wxPoint GetDeviceOrigin() const - { wxCoord x, y; DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); } - virtual void SetDeviceOrigin(wxCoord x, wxCoord y) = 0; +private: + wxDC& m_dc; - virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) = 0; + wxColour m_colFgOld; - int GetLogicalFunction() const { return m_logicalFunction; } - virtual void SetLogicalFunction(int function) = 0; + wxDECLARE_NO_COPY_CLASS(wxDCTextColourChanger); +}; - // Sometimes we need to override optimization, e.g. if other software is - // drawing onto our surface and we can't be sure of who's done what. - // - // FIXME: is this (still) used? - virtual void SetOptimization(bool WXUNUSED(opt)) { } - virtual bool GetOptimization() { return FALSE; } +// ---------------------------------------------------------------------------- +// helper class: you can use it to temporarily change the DC pen and +// restore it automatically when the object goes out of scope +// ---------------------------------------------------------------------------- - // bounding box - // ------------ +class WXDLLIMPEXP_CORE wxDCPenChanger +{ +public: + wxDCPenChanger(wxDC& dc, const wxPen& pen) : m_dc(dc), m_penOld(dc.GetPen()) + { + m_dc.SetPen(pen); + } - virtual void CalcBoundingBox(wxCoord x, wxCoord y) + ~wxDCPenChanger() { - if ( x < m_minX ) m_minX = x; - if ( y < m_minY ) m_minY = y; - if ( x > m_maxX ) m_maxX = x; - if ( y > m_maxY ) m_maxY = y; + if ( m_penOld.IsOk() ) + m_dc.SetPen(m_penOld); } - // Get the final bounding box of the PostScript or Metafile picture. - wxCoord MinX() const { return m_minX; } - wxCoord MaxX() const { return m_maxX; } - wxCoord MinY() const { return m_minY; } - wxCoord MaxY() const { return m_maxY; } +private: + wxDC& m_dc; - // misc old functions - // ------------------ + wxPen m_penOld; - // for compatibility with the old code when wxCoord was long everywhere -#ifndef __WIN16__ - void GetTextExtent(const wxString& string, - long *x, long *y, - long *descent = NULL, - long *externalLeading = NULL, - wxFont *theFont = NULL) const - { - wxCoord x2, y2, descent2, externalLeading2; - DoGetTextExtent(string, &x2, &y2, - &descent2, &externalLeading2, - theFont); - if ( x ) - *x = x2; - if ( y ) - *y = y2; - if ( descent ) - *descent = descent2; - if ( externalLeading ) - *externalLeading = externalLeading2; - } + wxDECLARE_NO_COPY_CLASS(wxDCPenChanger); +}; + +// ---------------------------------------------------------------------------- +// helper class: you can use it to temporarily change the DC brush and +// restore it automatically when the object goes out of scope +// ---------------------------------------------------------------------------- - void GetLogicalOrigin(long *x, long *y) const +class WXDLLIMPEXP_CORE wxDCBrushChanger +{ +public: + wxDCBrushChanger(wxDC& dc, const wxBrush& brush) : m_dc(dc), m_brushOld(dc.GetBrush()) { - wxCoord x2, y2; - DoGetLogicalOrigin(&x2, &y2); - if ( x ) - *x = x2; - if ( y ) - *y = y2; + m_dc.SetBrush(brush); } - void GetDeviceOrigin(long *x, long *y) const + ~wxDCBrushChanger() { - wxCoord x2, y2; - DoGetDeviceOrigin(&x2, &y2); - if ( x ) - *x = x2; - if ( y ) - *y = y2; - } - void GetClippingBox(long *x, long *y, long *w, long *h) const - { - wxCoord xx,yy,ww,hh; - DoGetClippingBox(&xx, &yy, &ww, &hh); - if (x) *x = xx; - if (y) *y = yy; - if (w) *w = ww; - if (h) *h = hh; - } -#endif // !Win16 - -#if WXWIN_COMPATIBILITY - virtual void SetColourMap(const wxPalette& palette) { SetPalette(palette); } - void GetTextExtent(const wxString& string, float *x, float *y, - float *descent = NULL, float *externalLeading = NULL, - wxFont *theFont = NULL, bool use16bit = FALSE) const ; - void GetSize(float* width, float* height) const { int w, h; GetSize(& w, & h); *width = w; *height = h; } - void GetSizeMM(float *width, float *height) const { long w, h; GetSizeMM(& w, & h); *width = (float) w; *height = (float) h; } -#endif // WXWIN_COMPATIBILITY - -protected: - // the pure virtual functions which should be implemented by wxDC - virtual void DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, - int style = wxFLOOD_SURFACE) = 0; - - virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0; - - virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0; - virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) = 0; + if ( m_brushOld.IsOk() ) + m_dc.SetBrush(m_brushOld); + } - virtual void DoDrawArc(wxCoord x1, wxCoord y1, - wxCoord x2, wxCoord y2, - wxCoord xc, wxCoord yc) = 0; - virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, - double sa, double ea) = 0; +private: + wxDC& m_dc; - virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) = 0; - virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y, - wxCoord width, wxCoord height, - double radius) = 0; - virtual void DoDrawEllipse(wxCoord x, wxCoord y, - wxCoord width, wxCoord height) = 0; + wxBrush m_brushOld; - virtual void DoCrossHair(wxCoord x, wxCoord y) = 0; + wxDECLARE_NO_COPY_CLASS(wxDCBrushChanger); +}; - virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0; - virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, - bool useMask = FALSE) = 0; +// ---------------------------------------------------------------------------- +// another small helper class: sets the clipping region in its ctor and +// destroys it in the dtor +// ---------------------------------------------------------------------------- - virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0; +class WXDLLIMPEXP_CORE wxDCClipper +{ +public: + wxDCClipper(wxDC& dc, const wxRegion& r) : m_dc(dc) + { 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) + { dc.SetClippingRegion(x, y, w, h); } - virtual bool DoBlit(wxCoord xdest, wxCoord ydest, - wxCoord width, wxCoord height, - wxDC *source, wxCoord xsrc, wxCoord ysrc, - int rop = wxCOPY, bool useMask = FALSE) = 0; + ~wxDCClipper() { m_dc.DestroyClippingRegion(); } - virtual void DoGetSize(int *width, int *height) const = 0; - virtual void DoGetSizeMM(int* width, int* height) const = 0; +private: + wxDC& m_dc; - virtual void DoDrawLines(int n, wxPoint points[], - wxCoord xoffset, wxCoord yoffset) = 0; - virtual void DoDrawPolygon(int n, wxPoint points[], - wxCoord xoffset, wxCoord yoffset, - int fillStyle = wxODDEVEN_RULE) = 0; + wxDECLARE_NO_COPY_CLASS(wxDCClipper); +}; - virtual void DoSetClippingRegionAsRegion(const wxRegion& region) = 0; - virtual void DoSetClippingRegion(wxCoord x, wxCoord y, - wxCoord width, wxCoord height) = 0; +// ---------------------------------------------------------------------------- +// helper class: you can use it to temporarily change the DC font and +// restore it automatically when the object goes out of scope +// ---------------------------------------------------------------------------- - // FIXME are these functions really different? - virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y, - wxCoord *w, wxCoord *h) - { DoGetClippingBox(x, y, w, h); } - virtual void DoGetClippingBox(wxCoord *x, wxCoord *y, - wxCoord *w, wxCoord *h) const +class WXDLLIMPEXP_CORE wxDCFontChanger +{ +public: + wxDCFontChanger(wxDC& dc) + : m_dc(dc), m_fontOld() { - if ( m_clipping ) - { - if ( x ) *x = m_clipX1; - if ( y ) *y = m_clipY1; - if ( w ) *w = m_clipX2 - m_clipX1; - if ( h ) *h = m_clipY2 - m_clipY1; - } - else - { - *x = *y = *w = *h = 0; - } } - virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const + wxDCFontChanger(wxDC& dc, const wxFont& font) + : m_dc(dc), m_fontOld(dc.GetFont()) { - if ( x ) *x = m_logicalOriginX; - if ( y ) *y = m_logicalOriginY; + m_dc.SetFont(font); } - virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const + void Set(const wxFont& font) { - if ( x ) *x = m_deviceOriginX; - if ( y ) *y = m_deviceOriginY; + if ( !m_fontOld.IsOk() ) + m_fontOld = m_dc.GetFont(); + m_dc.SetFont(font); } - virtual void DoGetTextExtent(const wxString& string, - wxCoord *x, wxCoord *y, - wxCoord *descent = NULL, - wxCoord *externalLeading = NULL, - wxFont *theFont = NULL) const = 0; - -#if wxUSE_SPLINES - virtual void DoDrawSpline(wxList *points) = 0; -#endif - -protected: - // flags - bool m_colour:1; - bool m_ok:1; - bool m_clipping:1; - bool m_isInteractive:1; - - // coordinate system variables - - // TODO short descriptions of what exactly they are would be nice... - - wxCoord m_logicalOriginX, m_logicalOriginY; - wxCoord m_deviceOriginX, m_deviceOriginY; - - double m_logicalScaleX, m_logicalScaleY; - double m_userScaleX, m_userScaleY; - double m_scaleX, m_scaleY; - - // Used by SetAxisOrientation() to invert the axes - int m_signX, m_signY; - - // bounding and clipping boxes - wxCoord m_minX, m_minY, m_maxX, m_maxY; - wxCoord m_clipX1, m_clipY1, m_clipX2, m_clipY2; + ~wxDCFontChanger() + { + if ( m_fontOld.IsOk() ) + m_dc.SetFont(m_fontOld); + } - int m_logicalFunction; - int m_backgroundMode; - int m_mappingMode; +private: + wxDC& m_dc; - // GDI objects - wxPen m_pen; - wxBrush m_brush; - wxBrush m_backgroundBrush; - wxColour m_textForegroundColour; - wxColour m_textBackgroundColour; - wxFont m_font; - wxPalette m_palette; + wxFont m_fontOld; -private: - DECLARE_NO_COPY_CLASS(wxDCBase); + wxDECLARE_NO_COPY_CLASS(wxDCFontChanger); }; -// ---------------------------------------------------------------------------- -// now include the declaration of wxDC class -// ---------------------------------------------------------------------------- - -#if defined(__WXMSW__) - #include "wx/msw/dc.h" -#elif defined(__WXMOTIF__) - #include "wx/motif/dc.h" -#elif defined(__WXGTK__) - #include "wx/gtk/dc.h" -#elif defined(__WXQT__) - #include "wx/qt/dc.h" -#elif defined(__WXMAC__) - #include "wx/mac/dc.h" -#elif defined(__WXPM__) - #include "wx/os2/dc.h" -#elif defined(__WXSTUBS__) - #include "wx/stubs/dc.h" -#endif -#endif - // _WX_DC_H_BASE_ +#endif // _WX_DC_H_BASE_