#include "wx/object.h" // the base class
+#include "wx/intl.h" // for wxLayoutDirection
#include "wx/cursor.h" // we have member variables of these classes
#include "wx/font.h" // so we can't do without them
#include "wx/colour.h"
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
// ------------------
source, srcPt.x, srcPt.y, rop, useMask, srcPtMask.x, srcPtMask.y);
}
+ bool StretchBlit(wxCoord dstX, wxCoord dstY,
+ wxCoord dstWidth, wxCoord dstHeight,
+ wxDC *source,
+ wxCoord srcX, wxCoord srcY,
+ wxCoord srcWidth, wxCoord srcHeight,
+ int rop = wxCOPY, bool useMask = false,
+ wxCoord srcMaskX = wxDefaultCoord, wxCoord srcMaskY = wxDefaultCoord)
+ {
+ return DoStretchBlit(dstX, dstY, dstWidth, dstHeight,
+ source, srcX, srcY, srcWidth, srcHeight, rop, useMask, srcMaskX, srcMaskY);
+ }
+ bool StretchBlit(const wxPoint& dstPt, const wxSize& dstSize,
+ wxDC *source, const wxPoint& srcPt, const wxSize& srcSize,
+ int rop = wxCOPY, bool useMask = false, const wxPoint& srcMaskPt = wxDefaultPosition)
+ {
+ return DoStretchBlit(dstPt.x, dstPt.y, dstSize.x, dstSize.y,
+ source, srcPt.x, srcPt.y, srcSize.x, srcSize.y, rop, useMask, srcMaskPt.x, srcMaskPt.y);
+ }
+
+ wxBitmap GetAsBitmap(const wxRect *subrect = (const wxRect *) NULL) const
+ {
+ return DoGetAsBitmap(subrect);
+ }
+
#if wxUSE_SPLINES
// TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)
void DrawSpline(wxCoord x1, wxCoord y1,
wxCoord *x, wxCoord *y,
wxCoord *descent = NULL,
wxCoord *externalLeading = NULL,
- wxFont *theFont = NULL) const
+ const wxFont *theFont = NULL) const
{ DoGetTextExtent(string, x, y, descent, externalLeading, theFont); }
+ wxSize GetTextExtent(const wxString& string) const
+ {
+ wxCoord w, h;
+ DoGetTextExtent(string, &w, &h);
+ return wxSize(w, h);
+ }
+
// works for single as well as multi-line strings
- virtual void GetMultiLineTextExtent(const wxString& text,
+ virtual void GetMultiLineTextExtent(const wxString& string,
wxCoord *width,
wxCoord *height,
wxCoord *heightLine = NULL,
- wxFont *font = NULL);
+ const wxFont *font = NULL) const;
+
+ wxSize GetMultiLineTextExtent(const wxString& string) const
+ {
+ wxCoord w, h;
+ GetMultiLineTextExtent(string, &w, &h);
+ return wxSize(w, h);
+ }
// Measure cumulative width of text after each character
bool GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
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;
-#if WXWIN_COMPATIBILITY_2_4
- virtual void SetOptimization(bool WXUNUSED(opt)) { }
- virtual bool GetOptimization() { return false; }
-#endif
-
// bounding box
// ------------
long *x, long *y,
long *descent = NULL,
long *externalLeading = NULL,
- wxFont *theFont = NULL) const
+ const wxFont *theFont = NULL) const
{
wxCoord x2, y2, descent2, externalLeading2;
DoGetTextExtent(string, &x2, &y2,
if (h) *h = hh;
}
+ // 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
+ { return wxLayout_Default; }
+ virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir))
+ { }
+
protected:
// the pure virtual functions which should be implemented by wxDC
virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
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 = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord) = 0;
+ wxDC *source,
+ wxCoord xsrc, wxCoord ysrc,
+ int rop = wxCOPY,
+ bool useMask = false,
+ wxCoord xsrcMask = wxDefaultCoord,
+ wxCoord ysrcMask = wxDefaultCoord) = 0;
+
+ 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);
+
+ virtual wxBitmap DoGetAsBitmap(const wxRect *WXUNUSED(subrect)) const
+ { return wxNullBitmap; }
virtual void DoGetSize(int *width, int *height) const = 0;
virtual void DoGetSizeMM(int* width, int* height) const = 0;
virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
wxCoord width, wxCoord height) = 0;
-#if WXWIN_COMPATIBILITY_2_4
- // this was only for confusing people, use DoGetClippingBox only
- virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y,
- wxCoord *w, wxCoord *h)
- { DoGetClippingBox(x, y, w, h); }
-#endif
-
virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
wxCoord *w, wxCoord *h) const
{
wxCoord *x, wxCoord *y,
wxCoord *descent = NULL,
wxCoord *externalLeading = NULL,
- wxFont *theFont = NULL) const = 0;
+ const wxFont *theFont = NULL) const = 0;
virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
// 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;
#include "wx/os2/dc.h"
#endif
+#if wxUSE_GRAPHICS_CONTEXT
+ #include "wx/dcgraph.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
public:
wxDCTextColourChanger(wxDC& dc) : m_dc(dc), m_colFgOld() { }
+ wxDCTextColourChanger(wxDC& dc, const wxColour& col) : m_dc(dc)
+ {
+ Set(col);
+ }
+
~wxDCTextColourChanger()
{
if ( m_colFgOld.Ok() )
DECLARE_NO_COPY_CLASS(wxDCClipper)
};
-#endif
- // _WX_DC_H_BASE_
+#endif // _WX_DC_H_BASE_
projects / wxWidgets.git / blobdiff