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();
- ResetClipping();
- }
-
- virtual ~wxDCBase() { }
-
+ wxDCBase();
+ virtual ~wxDCBase();
+
// graphic primitives
// ------------------
return wxSize(w, h);
}
- // 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 void SetTextBackground(const wxColour& colour)
{ m_textBackgroundColour = colour; }
+
+ // 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(int mode);
virtual int GetMapMode() const { return m_mappingMode; }
- virtual void SetMapMode(int mode) = 0;
+ 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 SetUserScale(double x, double y) = 0;
+ virtual void SetLogicalScale(double x, double y);
virtual void GetLogicalScale(double *x, double *y)
{
if ( x ) *x = m_logicalScaleX;
if ( y ) *y = m_logicalScaleY;
}
- virtual void SetLogicalScale(double x, double y)
- {
- m_logicalScaleX = x;
- m_logicalScaleY = y;
- }
+ virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
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;
+ virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
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;
+
+ virtual void SetDeviceLocalOrigin( wxCoord x, wxCoord y );
- virtual void ComputeScaleAndOrigin() {}
+ virtual void ComputeScaleAndOrigin();
- virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) = 0;
+ // this needs to overidden if the axis is inverted (such
+ // as when using Postscript, where 0,0 is the lower left
+ // corner, not the upper left).
+ virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
+ // logical functions
+ // ---------------------------
+
virtual int GetLogicalFunction() const { return m_logicalFunction; }
virtual void SetLogicalFunction(int function) = 0;
// misc old functions
// ------------------
+#if WXWIN_COMPATIBILITY_2_8
// for compatibility with the old code when wxCoord was long everywhere
- void GetTextExtent(const wxString& string,
+ wxDEPRECATED( void GetTextExtent(const wxString& string,
long *x, long *y,
long *descent = NULL,
long *externalLeading = NULL,
- const 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;
- }
+ 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 );
+#endif // WXWIN_COMPATIBILITY_2_8
// RTL related functions
// ---------------------
// TODO short descriptions of what exactly they are would be nice...
wxCoord m_logicalOriginX, m_logicalOriginY;
- wxCoord m_deviceOriginX, m_deviceOriginY;
-
+ 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;
+ double m_scaleX, m_scaleY; // calculated from logical scale and user scale
// Used by SetAxisOrientation() to invert the axes
int m_signX, m_signY;
+ // 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;
projects / wxWidgets.git / blobdiff