// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifndef _WX_DC_H_
-#define _WX_DC_H_
+#ifndef _WX_PALM_DC_H_
+#define _WX_PALM_DC_H_
#include "wx/defs.h"
#include "wx/dc.h"
};
#endif
-class WXDLLEXPORT wxDC : public wxDCBase
+// this is an ABC: use one of the derived classes to create a DC associated
+// with a window, screen, printer and so on
+class WXDLLEXPORT wxPalmDCImpl: public wxDCImpl
{
public:
- wxDC();
- virtual ~wxDC();
+ wxPalmDCImpl(wxDC *owner, WXHDC hDC);
+ virtual ~wxPalmDCImpl();
// implement base class pure virtuals
// ----------------------------------
virtual wxCoord GetCharHeight() const;
virtual wxCoord GetCharWidth() const;
- virtual void DoGetTextExtent(const wxString& string,
- wxCoord *x, wxCoord *y,
- wxCoord *descent = NULL,
- wxCoord *externalLeading = NULL,
- const wxFont *theFont = NULL) const;
- virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
virtual bool CanDrawBitmap() const;
virtual bool CanGetTextExtent() const;
virtual int GetDepth() const;
virtual wxSize GetPPI() const;
+
virtual void SetMapMode(int mode);
virtual void SetUserScale(double x, double y);
- virtual void SetSystemScale(double x, double y);
virtual void SetLogicalScale(double x, double y);
virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
+
virtual void SetLogicalFunction(int function);
// implementation from now on
virtual void SetRop(WXHDC cdc);
virtual void SelectOldObjects(WXHDC dc);
- wxWindow *GetWindow() const { return m_canvas; }
void SetWindow(wxWindow *win)
{
- m_canvas = win;
+ m_window = win;
#if wxUSE_PALETTE
// if we have palettes use the correct one for this window
}
WXHDC GetHDC() const { return m_hDC; }
- void SetHDC(WXHDC dc, bool bOwnsDC = FALSE)
+ void SetHDC(WXHDC dc, bool bOwnsDC = false)
{
m_hDC = dc;
m_bOwnsDC = bOwnsDC;
static void ClearCache();
#endif
+ // RTL related functions
+ // ---------------------
+
+ // get or change the layout direction (LTR or RTL) for this dc,
+ // wxLayout_Default is returned if layout direction is not supported
+ virtual wxLayoutDirection GetLayoutDirection() const;
+ virtual void SetLayoutDirection(wxLayoutDirection dir);
+
protected:
+ void Init()
+ {
+ m_bOwnsDC = false;
+ m_hDC = NULL;
+
+ m_oldBitmap = NULL;
+ m_oldPen = NULL;
+ m_oldBrush = NULL;
+ m_oldFont = NULL;
+
+#if wxUSE_PALETTE
+ m_oldPalette = NULL;
+#endif // wxUSE_PALETTE
+ }
+
+ // create an uninitialized DC: this should be only used by the derived
+ // classes
+ wxPalmDCImpl( wxDC *owner ) : wxDCImpl( owner ) { Init(); }
+
+ void RealizeScaleAndOrigin();
+
+public:
+ virtual void DoGetTextExtent(const wxString& string,
+ wxCoord *x, wxCoord *y,
+ wxCoord *descent = NULL,
+ wxCoord *externalLeading = NULL,
+ const wxFont *theFont = NULL) const;
+ virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
+
virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
int style = wxFLOOD_SURFACE);
+ virtual void DoGradientFillLinear(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ wxDirection nDirection = wxEAST);
+
virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
virtual void DoDrawPoint(wxCoord x, wxCoord y);
double radius);
virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
+#if wxUSE_SPLINES
+ virtual void DoDrawSpline(const wxPointList *points);
+#endif
+
virtual void DoCrossHair(wxCoord x, wxCoord y);
virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
- bool useMask = FALSE);
+ bool useMask = false);
virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
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);
+ int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord);
+
+ virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest,
+ wxCoord dstWidth, wxCoord dstHeight,
+ wxDC *source,
+ wxCoord xsrc, wxCoord ysrc,
+ wxCoord srcWidth, wxCoord srcHeight,
+ int rop = wxCOPY, bool useMask = false,
+ wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord);
// this is gnarly - we can't even call this function DoSetClippingRegion()
// because of virtual function hiding
virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
wxCoord *w, wxCoord *h) const;
- virtual void DoGetSize(int *width, int *height) const;
virtual void DoGetSizeMM(int* width, int* height) const;
virtual void DoDrawLines(int n, wxPoint points[],
virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
int fillStyle = wxODDEVEN_RULE);
+ virtual wxBitmap DoGetAsBitmap(const wxRect *subrect) const
+ {
+ return subrect == NULL ? GetSelectedBitmap()
+ : GetSelectedBitmap().GetSubBitmap(*subrect);
+ }
#if wxUSE_PALETTE
// (tell windows to translate pixel from other palettes to our custom one
// and vice versa)
// Realize tells it to also reset the system palette to this one.
- void DoSelectPalette(bool realize = FALSE);
+ void DoSelectPalette(bool realize = false);
// Find out what palette our parent window has, then select it into the dc
void InitializePalette();
#endif // wxUSE_PALETTE
+protected:
// common part of DoDrawText() and DoDrawRotatedText()
void DrawAnyText(const wxString& text, wxCoord x, wxCoord y);
// common part of DoSetClippingRegion() and DoSetClippingRegionAsRegion()
void SetClippingHrgn(WXHRGN hrgn);
+ // implementation of DoGetSize() for wxScreen/PrinterDC: this simply
+ // returns the size of the entire device this DC is associated with
+ //
+ // notice that we intentionally put it in a separate function instead of
+ // DoGetSize() itself because we want it to remain pure virtual both
+ // because each derived class should take care to define it as needed (this
+ // implementation is not at all always appropriate) and because we want
+ // wxDC to be an ABC to prevent it from being created directly
+ void GetDeviceSize(int *width, int *height) const;
+
+
// MSW-specific member variables
// -----------------------------
#endif // wxUSE_PALETTE
#if wxUSE_DC_CACHEING
- static wxList sm_bitmapCache;
- static wxList sm_dcCache;
+ static wxObjectList sm_bitmapCache;
+ static wxObjectList sm_dcCache;
#endif
- DECLARE_DYNAMIC_CLASS(wxDC)
- DECLARE_NO_COPY_CLASS(wxDC)
+ DECLARE_CLASS(wxPalmDCImpl)
+ DECLARE_NO_COPY_CLASS(wxPalmDCImpl)
};
// ----------------------------------------------------------------------------
// only/mainly)
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxDCTemp : public wxDC
+class WXDLLEXPORT wxDCTempImpl : public wxPalmDCImpl
{
public:
- wxDCTemp(WXHDC hdc) { SetHDC(hdc); }
- virtual ~wxDCTemp() { SetHDC((WXHDC)NULL); }
+ // construct a temporary DC with the specified HDC and size (it should be
+ // specified whenever we know it for this HDC)
+ wxDCTempImpl(wxDC *owner, WXHDC hdc, const wxSize& size )
+ : wxPalmDCImpl( owner, hdc ),
+ m_size(size)
+ {
+ }
+
+ virtual ~wxDCTempImpl()
+ {
+ // prevent base class dtor from freeing it
+ SetHDC((WXHDC)NULL);
+ }
+
+ virtual void DoGetSize(int *w, int *h) const
+ {
+ wxASSERT_MSG( m_size.IsFullySpecified(),
+ _T("size of this DC hadn't been set and is unknown") );
+
+ if ( w )
+ *w = m_size.x;
+ if ( h )
+ *h = m_size.y;
+ }
private:
- DECLARE_NO_COPY_CLASS(wxDCTemp)
+ // size of this DC must be explicitly set by SetSize() as we have no way to
+ // find it ourselves
+ const wxSize m_size;
+
+ DECLARE_NO_COPY_CLASS(wxDCTempImpl)
+};
+
+class WXDLLEXPORT wxDCTemp : public wxDC
+{
+public:
+ wxDCTemp(WXHDC hdc, const wxSize& size = wxDefaultSize)
+ : wxDC(new wxDCTempImpl(this, hdc, size))
+ {
+ }
};
#endif
- // _WX_DC_H_
+ // _WX_PALM_DC_H_
projects / wxWidgets.git / blobdiff