/////////////////////////////////////////////////////////////////////////////
-// Name: dc.h
+// Name: wx/gtk/dc.h
// Purpose:
// Author: Robert Roebling
// Id: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-
#ifndef __GTKDCH__
#define __GTKDCH__
-#ifdef __GNUG__
-#pragma interface
-#endif
-
-//-----------------------------------------------------------------------------
-// classes
-//-----------------------------------------------------------------------------
-
-class wxDC;
-
//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------
+#ifndef MM_TEXT
#define MM_TEXT 0
#define MM_ISOTROPIC 1
#define MM_ANISOTROPIC 2
#define MM_TWIPS 5
#define MM_POINTS 6
#define MM_METRIC 7
+#endif
//-----------------------------------------------------------------------------
-// wxDC
+// coordinates transformations
//-----------------------------------------------------------------------------
-class wxDC : public wxDCBase
+inline wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const
{
- DECLARE_ABSTRACT_CLASS(wxDC)
+ return wxRound((x - m_deviceOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
+}
+inline wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const
+{
+ return wxRound((y - m_deviceOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
+}
+inline wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const
+{
+ return wxRound(x / m_scaleX);
+}
+inline wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const
+{
+ return wxRound(y / m_scaleY);
+}
+inline wxCoord wxDCBase::LogicalToDeviceX(wxCoord x) const
+{
+ return wxRound((x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX;
+}
+inline wxCoord wxDCBase::LogicalToDeviceY(wxCoord y) const
+{
+ return wxRound((y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY;
+}
+inline wxCoord wxDCBase::LogicalToDeviceXRel(wxCoord x) const
+{
+ return wxRound(x * m_scaleX);
+}
+inline wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const
+{
+ return wxRound(y * m_scaleY);
+}
+
+//-----------------------------------------------------------------------------
+// wxDC
+//-----------------------------------------------------------------------------
+class WXDLLIMPEXP_CORE wxDC : public wxDCBase
+{
public:
wxDC();
- ~wxDC() { }
+ virtual ~wxDC() { }
+#if wxUSE_PALETTE
void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
-
- // the first two must be overridden and called
- virtual void DestroyClippingRegion();
+#endif // wxUSE_PALETTE
// Resolution in pixels per logical inch
virtual wxSize GetPPI() const;
- virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; }
+ virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
virtual void EndDoc() { }
virtual void StartPage() { }
virtual void EndPage() { }
virtual void SetMapMode( int mode );
virtual void SetUserScale( double x, double y );
virtual void SetLogicalScale( double x, double y );
- virtual void SetLogicalOrigin( long x, long y );
- virtual void SetDeviceOrigin( long x, long y );
+ virtual void SetLogicalOrigin( wxCoord x, wxCoord y );
+ virtual void SetDeviceOrigin( wxCoord x, wxCoord y );
virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
+ virtual void ComputeScaleAndOrigin();
+
+protected:
// implementation
// --------------
- void ComputeScaleAndOrigin();
-
- long XDEV2LOG(long x) const
+ wxCoord XDEV2LOG(wxCoord x) const
{
- long new_x = x - m_deviceOriginX;
- if (new_x > 0)
- return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
- else
- return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
+ return DeviceToLogicalX(x);
}
- long XDEV2LOGREL(long x) const
+ wxCoord XDEV2LOGREL(wxCoord x) const
{
- if (x > 0)
- return (long)((double)(x) / m_scaleX + 0.5);
- else
- return (long)((double)(x) / m_scaleX - 0.5);
+ return DeviceToLogicalXRel(x);
}
- long YDEV2LOG(long y) const
+ wxCoord YDEV2LOG(wxCoord y) const
{
- long new_y = y - m_deviceOriginY;
- if (new_y > 0)
- return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
- else
- return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
+ return DeviceToLogicalY(y);
}
- long YDEV2LOGREL(long y) const
+ wxCoord YDEV2LOGREL(wxCoord y) const
{
- if (y > 0)
- return (long)((double)(y) / m_scaleY + 0.5);
- else
- return (long)((double)(y) / m_scaleY - 0.5);
+ return DeviceToLogicalYRel(y);
}
- long XLOG2DEV(long x) const
+ wxCoord XLOG2DEV(wxCoord x) const
{
- long new_x = x - m_logicalOriginX;
- if (new_x > 0)
- return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
- else
- return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
+ return LogicalToDeviceX(x);
}
- long XLOG2DEVREL(long x) const
+ wxCoord XLOG2DEVREL(wxCoord x) const
{
- if (x > 0)
- return (long)((double)(x) * m_scaleX + 0.5);
- else
- return (long)((double)(x) * m_scaleX - 0.5);
+ return LogicalToDeviceXRel(x);
}
- long YLOG2DEV(long y) const
+ wxCoord YLOG2DEV(wxCoord y) const
{
- long new_y = y - m_logicalOriginY;
- if (new_y > 0)
- return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
- else
- return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
+ return LogicalToDeviceY(y);
}
- long YLOG2DEVREL(long y) const
+ wxCoord YLOG2DEVREL(wxCoord y) const
{
- if (y > 0)
- return (long)((double)(y) * m_scaleY + 0.5);
- else
- return (long)((double)(y) * m_scaleY - 0.5);
+ return LogicalToDeviceYRel(y);
}
-protected:
// base class pure virtuals implemented here
- virtual void DoSetClippingRegion(long x, long y, long width, long height);
- virtual void DoGetSize(int *width, int *height) const;
+ virtual void DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
virtual void DoGetSizeMM(int* width, int* height) const;
public:
// GTK-specific member variables
- int m_textAlignment; // gone in wxWin 2.0 ?
-
// not sure what for, but what is a mm on a screen you don't know the size
// of?
double m_mm_to_pix_x,
bool m_needComputeScaleX,
m_needComputeScaleY; // not yet used
- float m_scaleFactor; // wxPSDC wants to have this. Will disappear.
+
+private:
+ DECLARE_ABSTRACT_CLASS(wxDC)
};
+// this must be defined when wxDC::Blit() honours the DC origian and needed to
+// allow wxUniv code in univ/winuniv.cpp to work with versions of wxGTK
+// 2.3.[23]
+#ifndef wxHAS_WORKING_GTK_DC_BLIT
+ #define wxHAS_WORKING_GTK_DC_BLIT
+#endif
+
#endif // __GTKDCH__
projects / wxWidgets.git / blobdiff