#include "wx/brush.h"
#include "wx/pen.h"
#include "wx/palette.h"
-
#include "wx/list.h" // we use wxList in inline functions
-// ---------------------------------------------------------------------------
-// global variables
-// ---------------------------------------------------------------------------
+class WXDLLEXPORT wxDCBase;
-WXDLLEXPORT_DATA(extern int) wxPageNumber;
+class WXDLLEXPORT wxDrawObject
+{
+public:
-// ---------------------------------------------------------------------------
-// wxDC is the device context - object on which any drawing is done
-// ---------------------------------------------------------------------------
+ wxDrawObject()
+ : m_isBBoxValid(FALSE)
+ , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
+ { }
-class WXDLLEXPORT wxDCBase : public wxObject
-{
- DECLARE_ABSTRACT_CLASS(wxDCBase)
+ virtual ~wxDrawObject() { }
-public:
- wxDCBase()
+ virtual void Draw(wxDCBase&) const { }
+
+ virtual void CalcBoundingBox(wxCoord x, wxCoord y)
{
- m_clipping = FALSE;
- m_ok = TRUE;
+ 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;
+ }
+ }
- m_minX = m_minY = m_maxX = m_maxY = 0;
+ void ResetBoundingBox()
+ {
+ m_isBBoxValid = FALSE;
- m_signX = m_signY = 1;
+ m_minX = m_maxX = m_minY = m_maxY = 0;
+ }
- m_logicalOriginX = m_logicalOriginY =
- m_deviceOriginX = m_deviceOriginY = 0;
+ // Get the final bounding box of the PostScript or Metafile picture.
- m_logicalScaleX = m_logicalScaleY =
- m_userScaleX = m_userScaleY =
- m_scaleX = m_scaleY = 1.0;
+ wxCoord MinX() const { return m_minX; }
+ wxCoord MaxX() const { return m_maxX; }
+ wxCoord MinY() const { return m_minY; }
+ wxCoord MaxY() const { return m_maxY; }
- m_logicalFunction = -1;
+ //to define the type of object for derived objects
+ virtual int GetType()=0;
- m_backgroundMode = wxTRANSPARENT;
+protected:
+ //for boundingbox calculation
+ bool m_isBBoxValid:1;
+ //for boundingbox calculation
+ wxCoord m_minX, m_minY, m_maxX, m_maxY;
+};
- m_mappingMode = wxMM_TEXT;
+// ---------------------------------------------------------------------------
+// global variables
+// ---------------------------------------------------------------------------
- m_backgroundBrush = *wxTRANSPARENT_BRUSH;
+WXDLLEXPORT_DATA(extern int) wxPageNumber;
- m_textForegroundColour = *wxBLACK;
- m_textBackgroundColour = *wxWHITE;
+// ---------------------------------------------------------------------------
+// wxDC is the device context - object on which any drawing is done
+// ---------------------------------------------------------------------------
- m_colour = wxColourDisplay();
+class WXDLLEXPORT wxDCBase : public wxObject
+{
+public:
+ wxDCBase()
+ : m_colour(wxColourDisplay())
+ , m_ok(TRUE)
+ , m_clipping(FALSE)
+ , m_isInteractive(0)
+ , m_isBBoxValid(FALSE)
+ , m_logicalOriginX(0), m_logicalOriginY(0)
+ , m_deviceOriginX(0), m_deviceOriginY(0)
+ , m_logicalScaleX(1.0), m_logicalScaleY(1.0)
+ , m_userScaleX(1.0), m_userScaleY(1.0)
+ , m_scaleX(1.0), m_scaleY(1.0)
+ , m_signX(1), m_signY(1)
+ , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
+ , m_clipX1(0), m_clipY1(0), m_clipX2(0), m_clipY2(0)
+ , m_logicalFunction(wxCOPY)
+ , m_backgroundMode(wxTRANSPARENT)
+ , m_mappingMode(wxMM_TEXT)
+ , m_pen()
+ , m_brush()
+ , m_backgroundBrush(*wxTRANSPARENT_BRUSH)
+ , m_textForegroundColour(*wxBLACK)
+ , m_textBackgroundColour(*wxWHITE)
+ , m_font()
+#if wxUSE_PALETTE
+ , m_palette()
+ , m_hasCustomPalette(FALSE)
+#endif // wxUSE_PALETTE
+ {
+ ResetBoundingBox();
}
~wxDCBase() { }
// graphic primitives
// ------------------
- void FloodFill(wxCoord x, wxCoord y, const wxColour& col,
+ 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)
- { DoFloodFill(x, y, col, style); }
- void FloodFill(const wxPoint& pt, const wxColour& col,
+ { return DoFloodFill(x, y, col, style); }
+ bool FloodFill(const wxPoint& pt, const wxColour& col,
int style = wxFLOOD_SURFACE)
- { DoFloodFill(pt.x, pt.y, col, style); }
+ { return DoFloodFill(pt.x, pt.y, col, style); }
bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
{ return DoGetPixel(x, y, col); }
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 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 DrawCircle(wxCoord x, wxCoord y, wxCoord radius)
{ DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); }
+ 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)
void DrawText(const wxString& text, const wxPoint& pt)
{ DoDrawText(text, pt.x, pt.y); }
+ 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)
+ 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
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 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 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,
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
// -------------------
// ---------
// 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; }
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(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.
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(wxCoord x, wxCoord y, const wxColour& col,
+ virtual bool 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 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;
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,
- int rop = wxCOPY, bool useMask = FALSE) = 0;
+ 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;
wxFont *theFont = NULL) const = 0;
#if wxUSE_SPLINES
- virtual void DoDrawSpline(wxList *points) = 0;
+ virtual void DoDrawSpline(wxList *points);
#endif
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
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)
};
// ----------------------------------------------------------------------------
#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__)
#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), m_colFgOld() { }
+
+ ~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_
projects / wxWidgets.git / blobdiff