X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1777b9bbf4573dabecf4a3256d0d3c2c0c2a3fdf..19e30148e18cc99296b26503c155e5cef59045f4:/include/wx/dc.h diff --git a/include/wx/dc.h b/include/wx/dc.h index 90fd7f6c94..c14bbea8ae 100644 --- a/include/wx/dc.h +++ b/include/wx/dc.h @@ -28,16 +28,66 @@ #include "wx/brush.h" #include "wx/pen.h" #include "wx/palette.h" - #include "wx/list.h" // we use wxList in inline functions -// --------------------------------------------------------------------------- -// types -// --------------------------------------------------------------------------- +class WXDLLEXPORT wxDCBase; + +class WXDLLEXPORT wxDrawObject +{ +public: + + wxDrawObject() + { + ResetBoundingBox(); + } + + virtual ~wxDrawObject() { } + + virtual void Draw(wxDCBase&) 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; + } -// type which should be used (whenever possible, i.e. as long as it doesn't -// break compatibility) for screen coordinates -typedef int wxCoord; + // 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; +}; // --------------------------------------------------------------------------- // global variables @@ -51,15 +101,13 @@ WXDLLEXPORT_DATA(extern int) wxPageNumber; class WXDLLEXPORT wxDCBase : public wxObject { - DECLARE_ABSTRACT_CLASS(wxDCBase) - public: wxDCBase() { m_clipping = FALSE; m_ok = TRUE; - m_minX = m_minY = m_maxX = m_maxY = 0; + ResetBoundingBox(); m_signX = m_signY = 1; @@ -70,7 +118,7 @@ public: m_userScaleX = m_userScaleY = m_scaleX = m_scaleY = 1.0; - m_logicalFunction = -1; + m_logicalFunction = wxCOPY; m_backgroundMode = wxTRANSPARENT; @@ -92,65 +140,82 @@ public: // graphic primitives // ------------------ - void FloodFill(long x, long 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); } + virtual void DrawObject(wxDrawObject* drawobject) + { + drawobject->Draw(*this); + CalcBoundingBox(drawobject->MinX(),drawobject->MinY()); + CalcBoundingBox(drawobject->MaxX(),drawobject->MaxY()); + } + + bool FloodFill(wxCoord x, wxCoord y, const wxColour& col, + int style = wxFLOOD_SURFACE) + { return DoFloodFill(x, y, col, style); } + bool FloodFill(const wxPoint& pt, const wxColour& col, + int style = wxFLOOD_SURFACE) + { return DoFloodFill(pt.x, pt.y, col, style); } - bool GetPixel(long x, long y, wxColour *col) const + bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const { return DoGetPixel(x, y, col); } bool GetPixel(const wxPoint& pt, wxColour *col) const { return DoGetPixel(pt.x, pt.y, col); } - void DrawLine(long x1, long y1, long x2, long y2) + void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) { DoDrawLine(x1, y1, x2, y2); } void DrawLine(const wxPoint& pt1, const wxPoint& pt2) { DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); } - void CrossHair(long x, long y) + void CrossHair(wxCoord x, wxCoord y) { DoCrossHair(x, y); } void CrossHair(const wxPoint& pt) { DoCrossHair(pt.x, pt.y); } - void DrawArc(long x1, long y1, long x2, long y2, long xc, long yc) + void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, + wxCoord xc, wxCoord yc) { 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); } - void DrawEllipticArc(long x, long y, long w, long h, double sa, double ea) + void DrawCheckMark(wxCoord x, wxCoord y, + wxCoord width, wxCoord height) + { DoDrawCheckMark(x, y, width, height); } + void DrawCheckMark(const wxRect& rect) + { 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); } void DrawEllipticArc(const wxPoint& pt, const wxSize& sz, double sa, double ea) { DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); } - void DrawPoint(long x, long y) + void DrawPoint(wxCoord x, wxCoord y) { DoDrawPoint(x, y); } void DrawPoint(const wxPoint& pt) { DoDrawPoint(pt.x, pt.y); } - void DrawLines(int n, wxPoint points[], long xoffset = 0, long yoffset = 0) + void DrawLines(int n, wxPoint points[], + wxCoord xoffset = 0, wxCoord yoffset = 0) { DoDrawLines(n, points, xoffset, yoffset); } - void DrawLines(const wxList *list, long xoffset = 0, long yoffset = 0); + void DrawLines(const wxList *list, + wxCoord xoffset = 0, wxCoord yoffset = 0); void DrawPolygon(int n, wxPoint points[], - long xoffset = 0, long yoffset = 0, + wxCoord xoffset = 0, wxCoord yoffset = 0, int fillStyle = wxODDEVEN_RULE) { DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); } void DrawPolygon(const wxList *list, - long xoffset = 0, long yoffset = 0, + wxCoord xoffset = 0, wxCoord yoffset = 0, int fillStyle = wxODDEVEN_RULE); - void DrawRectangle(long x, long y, long width, long height) + void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { DoDrawRectangle(x, y, width, height); } void DrawRectangle(const wxPoint& pt, const wxSize& sz) { DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); } void DrawRectangle(const wxRect& rect) { DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); } - void DrawRoundedRectangle(long x, long y, long width, long height, + void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius) { DoDrawRoundedRectangle(x, y, width, height, radius); } void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz, @@ -159,49 +224,76 @@ public: void DrawRoundedRectangle(const wxRect& r, double radius) { DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); } - void DrawCircle(long x, long y, long radius) + void DrawCircle(wxCoord x, wxCoord y, wxCoord radius) { DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); } - void DrawEllipse(long x, long y, long width, long height) + void DrawCircle(const wxPoint& pt, wxCoord radius) + { DrawCircle(pt.x, pt.y, radius); } + + void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { DoDrawEllipse(x, y, width, height); } void DrawEllipse(const wxPoint& pt, const wxSize& sz) { DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); } void DrawEllipse(const wxRect& rect) { DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); } - void DrawIcon(const wxIcon& icon, long x, long y) + void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) { DoDrawIcon(icon, x, y); } void DrawIcon(const wxIcon& icon, const wxPoint& pt) { DoDrawIcon(icon, pt.x, pt.y); } - void DrawBitmap(const wxBitmap &bmp, long x, long y, bool useMask = FALSE) + void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, + bool useMask = FALSE) { DoDrawBitmap(bmp, x, y, useMask); } void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt, bool useMask = FALSE) { DoDrawBitmap(bmp, pt.x, pt.y, useMask); } - void DrawText(const wxString& text, long x, long y) + void DrawText(const wxString& text, wxCoord x, wxCoord y) { DoDrawText(text, x, y); } void DrawText(const wxString& text, const wxPoint& pt) { DoDrawText(text, pt.x, pt.y); } - bool Blit(long xdest, long ydest, long width, long height, - wxDC *source, long xsrc, long ysrc, - int rop = wxCOPY, bool useMask = FALSE) + void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle) + { DoDrawRotatedText(text, x, y, angle); } + void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle) + { 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 + virtual 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, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1) { return DoBlit(xdest, ydest, width, height, - source, xsrc, ysrc, rop, useMask); + 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) + int rop = wxCOPY, bool useMask = FALSE, const wxPoint& srcPtMask = wxPoint(-1, -1)) { return DoBlit(destPt.x, destPt.y, sz.x, sz.y, - source, srcPt.x, srcPt.y, rop, useMask); + source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y); } #if wxUSE_SPLINES -// TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?) - void DrawSpline(long x1, long y1, long x2, long y2, long x3, long y3); + // 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); } @@ -226,12 +318,14 @@ public: virtual void SetBrush(const wxBrush& brush) = 0; virtual void SetBackground(const wxBrush& brush) = 0; virtual void SetBackgroundMode(int mode) = 0; +#if wxUSE_PALETTE virtual void SetPalette(const wxPalette& palette) = 0; +#endif // wxUSE_PALETTE // clipping region // --------------- - void SetClippingRegion(long x, long y, long width, long height) + 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); } @@ -242,21 +336,36 @@ public: virtual void DestroyClippingRegion() = 0; - void GetClippingBox(long *x, long *y, long *w, long *h) const + 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); } + { + // Necessary to use intermediate variables for 16-bit compilation + wxCoord x, y, w, h; + DoGetClippingBox(&x, &y, &w, &h); + rect.x = x; rect.y = y; rect.width = w; rect.height = h; + } // text extent // ----------- - virtual long GetCharHeight() const = 0; - virtual long GetCharWidth() const = 0; - virtual void GetTextExtent(const wxString& string, - long *x, long *y, - long *descent = NULL, - long *externalLeading = NULL, - wxFont *theFont = NULL) const = 0; + virtual wxCoord GetCharHeight() const = 0; + virtual wxCoord GetCharWidth() const = 0; + + // only works for single line strings + 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); } + + // works for single as well as multi-line strings + virtual void GetMultiLineTextExtent(const wxString& text, + wxCoord *width, + wxCoord *height, + wxCoord *heightLine = NULL, + wxFont *font = NULL); // size and resolution // ------------------- @@ -288,14 +397,14 @@ public: // This group of functions does actual conversion of the input, as you'd // expect. - long DeviceToLogicalX(long x) const; - long DeviceToLogicalY(long y) const; - long DeviceToLogicalXRel(long x) const; - long DeviceToLogicalYRel(long y) const; - long LogicalToDeviceX(long x) const; - long LogicalToDeviceY(long y) const; - long LogicalToDeviceXRel(long x) const; - long LogicalToDeviceYRel(long y) const; + 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 // --------------------- @@ -315,6 +424,7 @@ public: // --------- // const... + int GetBackgroundMode() const { return m_backgroundMode; } const wxBrush& GetBackground() const { return m_backgroundBrush; } const wxBrush& GetBrush() const { return m_brush; } const wxFont& GetFont() const { return m_font; } @@ -356,17 +466,17 @@ public: m_logicalScaleY = y; } - void GetLogicalOrigin(long *x, long *y) const + void GetLogicalOrigin(wxCoord *x, wxCoord *y) const { DoGetLogicalOrigin(x, y); } wxPoint GetLogicalOrigin() const - { long x, y; DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); } - virtual void SetLogicalOrigin(long x, long y) = 0; + { wxCoord x, y; DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); } + virtual void SetLogicalOrigin(wxCoord x, wxCoord y) = 0; - void GetDeviceOrigin(long *x, long *y) const + void GetDeviceOrigin(wxCoord *x, wxCoord *y) const { DoGetDeviceOrigin(x, y); } wxPoint GetDeviceOrigin() const - { long x, y; DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); } - virtual void SetDeviceOrigin(long x, long y) = 0; + { wxCoord x, y; DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); } + virtual void SetDeviceOrigin(wxCoord x, wxCoord y) = 0; virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) = 0; @@ -380,88 +490,180 @@ public: virtual void SetOptimization(bool WXUNUSED(opt)) { } virtual bool GetOptimization() { return FALSE; } + // Some platforms have a DC cache, which should be cleared + // at appropriate points such as after a series of DC operations. + // Put ClearCache in the wxDC implementation class, since it has to be + // static. + // static void ClearCache() ; +#if 0 // wxUSE_DC_CACHEING + static void EnableCache(bool cacheing) { sm_cacheing = cacheing; } + static bool CacheEnabled() { return sm_cacheing ; } +#endif + // bounding box // ------------ - virtual void CalcBoundingBox(long x, long y) + virtual void CalcBoundingBox(wxCoord x, wxCoord y) { - 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_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. - long MinX() const { return m_minX; } - long MaxX() const { return m_maxX; } - long MinY() const { return m_minY; } - long MaxY() const { return m_maxY; } + wxCoord MinX() const { return m_minX; } + wxCoord MaxX() const { return m_maxX; } + wxCoord MinY() const { return m_minY; } + wxCoord MaxY() const { return m_maxY; } // misc old functions // ------------------ + // 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; + } + + void GetLogicalOrigin(long *x, long *y) const + { + wxCoord x2, y2; + DoGetLogicalOrigin(&x2, &y2); + if ( x ) + *x = x2; + if ( y ) + *y = y2; + } + + void GetDeviceOrigin(long *x, long *y) const + { + 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 + +#if wxUSE_PALETTE virtual void SetColourMap(const wxPalette& palette) { SetPalette(palette); } +#endif // wxUSE_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(long x, long y, const wxColour& col, + virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style = wxFLOOD_SURFACE) = 0; - virtual bool DoGetPixel(long x, long y, wxColour *col) const = 0; + virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0; - virtual void DoDrawPoint(long x, long y) = 0; - virtual void DoDrawLine(long x1, long y1, long x2, long y2) = 0; + virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0; + virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) = 0; - virtual void DoDrawArc(long x1, long y1, - long x2, long y2, - long xc, long yc) = 0; - virtual void DoDrawEllipticArc(long x, long y, long w, long h, + 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(long x, long y, long width, long height) = 0; - virtual void DoDrawRoundedRectangle(long x, long y, - long width, long height, + 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(long x, long y, long width, long height) = 0; + virtual void DoDrawEllipse(wxCoord x, wxCoord y, + wxCoord width, wxCoord height) = 0; - virtual void DoCrossHair(long x, long y) = 0; + virtual void DoCrossHair(wxCoord x, wxCoord y) = 0; - virtual void DoDrawIcon(const wxIcon& icon, long x, long y) = 0; - virtual void DoDrawBitmap(const wxBitmap &bmp, long x, long y, + 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, long x, long y) = 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(long xdest, long ydest, long width, long height, - wxDC *source, long xsrc, long ysrc, - int rop = wxCOPY, bool useMask = FALSE) = 0; + virtual bool DoBlit(wxCoord xdest, wxCoord ydest, + wxCoord width, wxCoord height, + wxDC *source, wxCoord xsrc, wxCoord ysrc, + int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1) = 0; virtual void DoGetSize(int *width, int *height) const = 0; virtual void DoGetSizeMM(int* width, int* height) const = 0; virtual void DoDrawLines(int n, wxPoint points[], - long xoffset, long yoffset) = 0; + wxCoord xoffset, wxCoord yoffset) = 0; virtual void DoDrawPolygon(int n, wxPoint points[], - long xoffset, long yoffset, + wxCoord xoffset, wxCoord yoffset, int fillStyle = wxODDEVEN_RULE) = 0; virtual void DoSetClippingRegionAsRegion(const wxRegion& region) = 0; - virtual void DoSetClippingRegion(long x, long y, - long width, long height) = 0; + virtual void DoSetClippingRegion(wxCoord x, wxCoord y, + wxCoord width, wxCoord height) = 0; // FIXME are these functions really different? - virtual void DoGetClippingRegion(long *x, long *y, - long *w, long *h) + virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y, + wxCoord *w, wxCoord *h) { DoGetClippingBox(x, y, w, h); } - virtual void DoGetClippingBox(long *x, long *y, - long *w, long *h) const + virtual void DoGetClippingBox(wxCoord *x, wxCoord *y, + wxCoord *w, wxCoord *h) const { if ( m_clipping ) { @@ -476,20 +678,26 @@ protected: } } - virtual void DoGetLogicalOrigin(long *x, long *y) const + virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const { if ( x ) *x = m_logicalOriginX; if ( y ) *y = m_logicalOriginY; } - virtual void DoGetDeviceOrigin(long *x, long *y) const + virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const { if ( x ) *x = m_deviceOriginX; if ( y ) *y = m_deviceOriginY; } + 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; + virtual void DoDrawSpline(wxList *points); #endif protected: @@ -498,13 +706,17 @@ protected: bool m_ok:1; bool m_clipping:1; bool m_isInteractive:1; + bool m_isBBoxValid:1; +#if wxUSE_DC_CACHEING +// static bool sm_cacheing; +#endif // coordinate system variables // TODO short descriptions of what exactly they are would be nice... - long m_logicalOriginX, m_logicalOriginY; - long m_deviceOriginX, m_deviceOriginY; + wxCoord m_logicalOriginX, m_logicalOriginY; + wxCoord m_deviceOriginX, m_deviceOriginY; double m_logicalScaleX, m_logicalScaleY; double m_userScaleX, m_userScaleY; @@ -514,8 +726,8 @@ protected: int m_signX, m_signY; // bounding and clipping boxes - long m_minX, m_minY, m_maxX, m_maxY; - long m_clipX1, m_clipY1, m_clipX2, m_clipY2; + wxCoord m_minX, m_minY, m_maxX, m_maxY; + wxCoord m_clipX1, m_clipY1, m_clipX2, m_clipY2; int m_logicalFunction; int m_backgroundMode; @@ -528,10 +740,15 @@ protected: wxColour m_textForegroundColour; wxColour m_textBackgroundColour; wxFont m_font; + +#if wxUSE_PALETTE wxPalette m_palette; + bool m_hasCustomPalette; +#endif // wxUSE_PALETTE private: - DECLARE_NO_COPY_CLASS(wxDCBase); + DECLARE_NO_COPY_CLASS(wxDCBase) + DECLARE_ABSTRACT_CLASS(wxDCBase) }; // ---------------------------------------------------------------------------- @@ -544,8 +761,10 @@ private: #include "wx/motif/dc.h" #elif defined(__WXGTK__) #include "wx/gtk/dc.h" -#elif defined(__WXQT__) - #include "wx/qt/dc.h" +#elif defined(__WXX11__) + #include "wx/x11/dc.h" +#elif defined(__WXMGL__) + #include "wx/mgl/dc.h" #elif defined(__WXMAC__) #include "wx/mac/dc.h" #elif defined(__WXPM__) @@ -554,5 +773,53 @@ private: #include "wx/stubs/dc.h" #endif +// ---------------------------------------------------------------------------- +// helper class: you can use it to temporarily change the DC text colour and +// restore it automatically when the object goes out of scope +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxDCTextColourChanger +{ +public: + wxDCTextColourChanger(wxDC& dc) : m_dc(dc) { } + + ~wxDCTextColourChanger() + { + if ( m_colFgOld.Ok() ) + m_dc.SetTextForeground(m_colFgOld); + } + + void Set(const wxColour& col) + { + if ( !m_colFgOld.Ok() ) + m_colFgOld = m_dc.GetTextForeground(); + m_dc.SetTextForeground(col); + } + +private: + wxDC& m_dc; + + wxColour m_colFgOld; +}; + +// ---------------------------------------------------------------------------- +// another small helper class: sets the clipping region in its ctor and +// destroys it in the dtor +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxDCClipper +{ +public: + 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); } + + ~wxDCClipper() { m_dc.DestroyClippingRegion(); } + +private: + wxDC& m_dc; +}; + #endif // _WX_DC_H_BASE_