/////////////////////////////////////////////////////////////////////////////
-// Name: dc.h
+// Name: wx/dc.h
// Purpose: wxDC class
// Author: Vadim Zeitlin
// Modified by:
#ifndef _WX_DC_H_BASE_
#define _WX_DC_H_BASE_
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
- #pragma interface "dcbase.h"
-#endif
-
// ----------------------------------------------------------------------------
// headers which we must include here
// ----------------------------------------------------------------------------
#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"
+#include "wx/bitmap.h" // for wxNullBitmap
#include "wx/brush.h"
#include "wx/pen.h"
#include "wx/palette.h"
#include "wx/list.h" // we use wxList in inline functions
#include "wx/dynarray.h"
+#include "wx/math.h"
class WXDLLEXPORT wxDC;
class WXDLLEXPORT wxDCBase;
// global variables
// ---------------------------------------------------------------------------
-WXDLLEXPORT_DATA(extern int) wxPageNumber;
-
// ---------------------------------------------------------------------------
// wxDC is the device context - object on which any drawing is done
// ---------------------------------------------------------------------------
ResetClipping();
}
- ~wxDCBase() { }
-
- virtual void BeginDrawing() { }
- virtual void EndDrawing() { }
+ virtual ~wxDCBase() { }
// graphic primitives
// ------------------
int style = wxFLOOD_SURFACE)
{ return DoFloodFill(pt.x, pt.y, col, style); }
+ // fill the area specified by rect with a radial gradient, starting from
+ // initialColour in the centre of the cercle and fading to destColour.
+ void GradientFillConcentric(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour)
+ { GradientFillConcentric(rect, initialColour, destColour,
+ wxPoint(rect.GetWidth() / 2,
+ rect.GetHeight() / 2)); }
+
+ void GradientFillConcentric(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ const wxPoint& circleCenter)
+ { DoGradientFillConcentric(rect, initialColour, destColour, circleCenter); }
+
+ // fill the area specified by rect with a linear gradient
+ void GradientFillLinear(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ wxDirection nDirection = wxEAST)
+ { DoGradientFillLinear(rect, initialColour, destColour, nDirection); }
+
bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
{ return DoGetPixel(x, y, col); }
bool GetPixel(const wxPoint& pt, wxColour *col) const
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,
* \param angle Rotating angle (counterclockwise, start at 3 o'clock, 360 is full circle).
* \param center Center of rotation.
*/
- void Rotate( wxList* points, double angle, wxPoint center = wxPoint() );
+ void Rotate( wxList* points, double angle, wxPoint center = wxPoint(0,0) );
// used by DrawEllipticArcRot
// Careful: wxList gets filled with points you have to delete later.
virtual void StartPage() { }
virtual void EndPage() { }
+#if WXWIN_COMPATIBILITY_2_6
+ wxDEPRECATED( void BeginDrawing() );
+ wxDEPRECATED( void EndDrawing() );
+#endif // WXWIN_COMPATIBILITY_2_6
+
+
// set objects to use for drawing
// ------------------------------
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
// 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;
+ virtual wxCoord DeviceToLogicalX(wxCoord x) const = 0;
+ virtual wxCoord DeviceToLogicalY(wxCoord y) const = 0;
+ virtual wxCoord DeviceToLogicalXRel(wxCoord x) const = 0;
+ virtual wxCoord DeviceToLogicalYRel(wxCoord y) const = 0;
+ virtual wxCoord LogicalToDeviceX(wxCoord x) const = 0;
+ virtual wxCoord LogicalToDeviceY(wxCoord y) const = 0;
+ virtual wxCoord LogicalToDeviceXRel(wxCoord x) const = 0;
+ virtual wxCoord LogicalToDeviceYRel(wxCoord y) const = 0;
// query DC capabilities
// ---------------------
// Resolution in Pixels per inch
virtual wxSize GetPPI() const = 0;
- virtual bool Ok() const { return m_ok; }
+ virtual bool Ok() const { return IsOk(); }
+ virtual bool IsOk() const { return m_ok; }
// accessors and setters
// ---------------------
- 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; }
- const wxPen& GetPen() const { return m_pen; }
+ virtual int GetBackgroundMode() const { return m_backgroundMode; }
+ virtual const wxBrush& GetBackground() const { return m_backgroundBrush; }
+ virtual const wxBrush& GetBrush() const { return m_brush; }
+ virtual const wxFont& GetFont() const { return m_font; }
+ virtual const wxPen& GetPen() const { return m_pen; }
- const wxColour& GetTextForeground() const { return m_textForegroundColour; }
- const wxColour& GetTextBackground() const { return m_textBackgroundColour; }
+ virtual const wxColour& GetTextForeground() const { return m_textForegroundColour; }
+ virtual const wxColour& GetTextBackground() const { return m_textBackgroundColour; }
virtual void SetTextForeground(const wxColour& colour)
{ m_textForegroundColour = colour; }
virtual void SetTextBackground(const wxColour& colour)
{ m_textBackgroundColour = colour; }
- int GetMapMode() const { return m_mappingMode; }
+ virtual int GetMapMode() const { return m_mappingMode; }
virtual void SetMapMode(int mode) = 0;
virtual void GetUserScale(double *x, double *y) const
{ wxCoord x, y; DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); }
virtual void SetDeviceOrigin(wxCoord x, wxCoord y) = 0;
+ virtual void ComputeScaleAndOrigin() {}
+
virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) = 0;
- int GetLogicalFunction() const { return m_logicalFunction; }
+ virtual int GetLogicalFunction() const { return m_logicalFunction; }
virtual void SetLogicalFunction(int function) = 0;
- // Sometimes we need to override optimization, e.g. if other software is
- // drawing onto our surface and we can't be sure of who's done what.
- //
- // FIXME: is this (still) used?
- virtual void SetOptimization(bool WXUNUSED(opt)) { }
- virtual bool GetOptimization() { return false; }
-
// 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,
int style = wxFLOOD_SURFACE) = 0;
+ virtual void DoGradientFillLinear(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ wxDirection nDirection = wxEAST);
+
+ virtual void DoGradientFillConcentric(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ const wxPoint& circleCenter);
+
virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const = 0;
virtual void DoDrawPoint(wxCoord x, wxCoord y) = 0;
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;
- // FIXME are these functions really different?
- virtual void DoGetClippingRegion(wxCoord *x, wxCoord *y,
- wxCoord *w, wxCoord *h)
- { DoGetClippingBox(x, y, w, h); }
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;
// now include the declaration of wxDC class
// ----------------------------------------------------------------------------
-#if defined(__WXMSW__)
+#if defined(__WXPALMOS__)
+ #include "wx/palmos/dc.h"
+#elif defined(__WXMSW__)
#include "wx/msw/dc.h"
#elif defined(__WXMOTIF__)
#include "wx/motif/dc.h"
-#elif defined(__WXGTK__)
+#elif defined(__WXGTK20__)
#include "wx/gtk/dc.h"
+#elif defined(__WXGTK__)
+ #include "wx/gtk1/dc.h"
#elif defined(__WXX11__)
#include "wx/x11/dc.h"
#elif defined(__WXMGL__)
#include "wx/mgl/dc.h"
+#elif defined(__WXDFB__)
+ #include "wx/dfb/dc.h"
#elif defined(__WXMAC__)
#include "wx/mac/dc.h"
#elif defined(__WXCOCOA__)
#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(wxDCTextColourChanger)
};
+// ----------------------------------------------------------------------------
+// helper class: you can use it to temporarily change the DC pen and
+// restore it automatically when the object goes out of scope
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDCPenChanger
+{
+public:
+ wxDCPenChanger(wxDC& dc, const wxPen& pen) : m_dc(dc), m_penOld(dc.GetPen())
+ {
+ m_dc.SetPen(pen);
+ }
+
+ ~wxDCPenChanger()
+ {
+ if ( m_penOld.Ok() )
+ m_dc.SetPen(m_penOld);
+ }
+
+private:
+ wxDC& m_dc;
+
+ wxPen m_penOld;
+
+ DECLARE_NO_COPY_CLASS(wxDCPenChanger)
+};
+
+// ----------------------------------------------------------------------------
+// helper class: you can use it to temporarily change the DC brush and
+// restore it automatically when the object goes out of scope
+// ----------------------------------------------------------------------------
+
+class WXDLLEXPORT wxDCBrushChanger
+{
+public:
+ wxDCBrushChanger(wxDC& dc, const wxBrush& brush) : m_dc(dc), m_brushOld(dc.GetBrush())
+ {
+ m_dc.SetBrush(brush);
+ }
+
+ ~wxDCBrushChanger()
+ {
+ if ( m_brushOld.Ok() )
+ m_dc.SetBrush(m_brushOld);
+ }
+
+private:
+ wxDC& m_dc;
+
+ wxBrush m_brushOld;
+
+ DECLARE_NO_COPY_CLASS(wxDCBrushChanger)
+};
+
// ----------------------------------------------------------------------------
// 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 wxRegion& r) : m_dc(dc)
+ { dc.SetClippingRegion(r); }
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)
DECLARE_NO_COPY_CLASS(wxDCClipper)
};
-#endif
- // _WX_DC_H_BASE_
+#endif // _WX_DC_H_BASE_
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