/////////////////////////////////////////////////////////////////////////////
-// Name: dc.h
+// Name: wx/dc.h
// Purpose: wxDC class
// Author: Vadim Zeitlin
// Modified by:
// Created: 05/25/99
// RCS-ID: $Id$
-// Copyright: (c) wxWindows team
+// Copyright: (c) wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DC_H_BASE_
#define _WX_DC_H_BASE_
-#ifdef __GNUG__
- #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/dynarray.h"
+#include "wx/math.h"
+#include "wx/image.h"
+#include "wx/region.h"
+#include "wx/affinematrix2d.h"
+
+#define wxUSE_NEW_DC 1
+
+class WXDLLIMPEXP_FWD_CORE wxDC;
+class WXDLLIMPEXP_FWD_CORE wxClientDC;
+class WXDLLIMPEXP_FWD_CORE wxPaintDC;
+class WXDLLIMPEXP_FWD_CORE wxWindowDC;
+class WXDLLIMPEXP_FWD_CORE wxScreenDC;
+class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
+class WXDLLIMPEXP_FWD_CORE wxPrinterDC;
+class WXDLLIMPEXP_FWD_CORE wxPrintData;
+
+#if wxUSE_GRAPHICS_CONTEXT
+class WXDLLIMPEXP_FWD_CORE wxGraphicsContext;
+#endif
-#include "wx/list.h" // we use wxList in inline functions
-
-// ---------------------------------------------------------------------------
-// global variables
-// ---------------------------------------------------------------------------
-
-WXDLLEXPORT_DATA(extern int) wxPageNumber;
+// Logical ops
+enum wxRasterOperationMode
+{
+ wxCLEAR, // 0
+ wxXOR, // src XOR dst
+ wxINVERT, // NOT dst
+ wxOR_REVERSE, // src OR (NOT dst)
+ wxAND_REVERSE, // src AND (NOT dst)
+ wxCOPY, // src
+ wxAND, // src AND dst
+ wxAND_INVERT, // (NOT src) AND dst
+ wxNO_OP, // dst
+ wxNOR, // (NOT src) AND (NOT dst)
+ wxEQUIV, // (NOT src) XOR dst
+ wxSRC_INVERT, // (NOT src)
+ wxOR_INVERT, // (NOT src) OR dst
+ wxNAND, // (NOT src) OR (NOT dst)
+ wxOR, // src OR dst
+ wxSET // 1
+#if WXWIN_COMPATIBILITY_2_8
+ ,wxROP_BLACK = wxCLEAR,
+ wxBLIT_BLACKNESS = wxCLEAR,
+ wxROP_XORPEN = wxXOR,
+ wxBLIT_SRCINVERT = wxXOR,
+ wxROP_NOT = wxINVERT,
+ wxBLIT_DSTINVERT = wxINVERT,
+ wxROP_MERGEPENNOT = wxOR_REVERSE,
+ wxBLIT_00DD0228 = wxOR_REVERSE,
+ wxROP_MASKPENNOT = wxAND_REVERSE,
+ wxBLIT_SRCERASE = wxAND_REVERSE,
+ wxROP_COPYPEN = wxCOPY,
+ wxBLIT_SRCCOPY = wxCOPY,
+ wxROP_MASKPEN = wxAND,
+ wxBLIT_SRCAND = wxAND,
+ wxROP_MASKNOTPEN = wxAND_INVERT,
+ wxBLIT_00220326 = wxAND_INVERT,
+ wxROP_NOP = wxNO_OP,
+ wxBLIT_00AA0029 = wxNO_OP,
+ wxROP_NOTMERGEPEN = wxNOR,
+ wxBLIT_NOTSRCERASE = wxNOR,
+ wxROP_NOTXORPEN = wxEQUIV,
+ wxBLIT_00990066 = wxEQUIV,
+ wxROP_NOTCOPYPEN = wxSRC_INVERT,
+ wxBLIT_NOTSCRCOPY = wxSRC_INVERT,
+ wxROP_MERGENOTPEN = wxOR_INVERT,
+ wxBLIT_MERGEPAINT = wxOR_INVERT,
+ wxROP_NOTMASKPEN = wxNAND,
+ wxBLIT_007700E6 = wxNAND,
+ wxROP_MERGEPEN = wxOR,
+ wxBLIT_SRCPAINT = wxOR,
+ wxROP_WHITE = wxSET,
+ wxBLIT_WHITENESS = wxSET
+#endif //WXWIN_COMPATIBILITY_2_8
+};
-// ---------------------------------------------------------------------------
-// wxDC is the device context - object on which any drawing is done
-// ---------------------------------------------------------------------------
+// Flood styles
+enum wxFloodFillStyle
+{
+ wxFLOOD_SURFACE = 1,
+ wxFLOOD_BORDER
+};
-class WXDLLEXPORT wxDCBase : public wxObject
+// Mapping modes
+enum wxMappingMode
{
- DECLARE_ABSTRACT_CLASS(wxDCBase)
+ wxMM_TEXT = 1,
+ wxMM_METRIC,
+ wxMM_LOMETRIC,
+ wxMM_TWIPS,
+ wxMM_POINTS
+};
-public:
- wxDCBase()
+// Description of text characteristics.
+struct wxFontMetrics
+{
+ wxFontMetrics()
{
- m_clipping = FALSE;
- m_ok = TRUE;
-
- m_minX = m_minY = m_maxX = m_maxY = 0;
+ height =
+ ascent =
+ descent =
+ internalLeading =
+ externalLeading =
+ averageWidth = 0;
+ }
- m_signX = m_signY = 1;
+ int height, // Total character height.
+ ascent, // Part of the height above the baseline.
+ descent, // Part of the height below the baseline.
+ internalLeading, // Intra-line spacing.
+ externalLeading, // Inter-line spacing.
+ averageWidth; // Average font width, a.k.a. "x-width".
+};
- m_logicalOriginX = m_logicalOriginY =
- m_deviceOriginX = m_deviceOriginY = 0;
+#if WXWIN_COMPATIBILITY_2_8
- m_logicalScaleX = m_logicalScaleY =
- m_userScaleX = m_userScaleY =
- m_scaleX = m_scaleY = 1.0;
+//-----------------------------------------------------------------------------
+// wxDrawObject helper class
+//-----------------------------------------------------------------------------
- m_logicalFunction = -1;
+class WXDLLIMPEXP_CORE wxDrawObject
+{
+public:
+ wxDEPRECATED_CONSTRUCTOR(wxDrawObject)()
+ : m_isBBoxValid(false)
+ , m_minX(0), m_minY(0), m_maxX(0), m_maxY(0)
+ { }
- m_backgroundMode = wxTRANSPARENT;
+ virtual ~wxDrawObject() { }
- m_mappingMode = wxMM_TEXT;
+ virtual void Draw(wxDC&) const { }
- m_backgroundBrush = *wxTRANSPARENT_BRUSH;
+ virtual void CalcBoundingBox(wxCoord x, wxCoord y)
+ {
+ if ( m_isBBoxValid )
+ {
+ if ( x < m_minX ) m_minX = x;
+ if ( y < m_minY ) m_minY = y;
+ if ( x > m_maxX ) m_maxX = x;
+ if ( y > m_maxY ) m_maxY = y;
+ }
+ else
+ {
+ m_isBBoxValid = true;
+
+ m_minX = x;
+ m_minY = y;
+ m_maxX = x;
+ m_maxY = y;
+ }
+ }
- m_textForegroundColour = *wxBLACK;
- m_textBackgroundColour = *wxWHITE;
+ void ResetBoundingBox()
+ {
+ m_isBBoxValid = false;
- m_colour = wxColourDisplay();
+ m_minX = m_maxX = m_minY = m_maxY = 0;
}
- ~wxDCBase() { }
+ // Get the final bounding box of the PostScript or Metafile picture.
- virtual void BeginDrawing() { }
- virtual void EndDrawing() { }
+ wxCoord MinX() const { return m_minX; }
+ wxCoord MaxX() const { return m_maxX; }
+ wxCoord MinY() const { return m_minY; }
+ wxCoord MaxY() const { return m_maxY; }
- // graphic primitives
- // ------------------
+ //to define the type of object for derived objects
+ virtual int GetType()=0;
- void FloodFill(wxCoord x, wxCoord y, const wxColour& col,
- int style = wxFLOOD_SURFACE)
- { DoFloodFill(x, y, col, style); }
- void FloodFill(const wxPoint& pt, const wxColour& col,
- int style = wxFLOOD_SURFACE)
- { DoFloodFill(pt.x, pt.y, col, style); }
+protected:
+ //for boundingbox calculation
+ bool m_isBBoxValid:1;
+ //for boundingbox calculation
+ wxCoord m_minX, m_minY, m_maxX, m_maxY;
+};
- bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
- { return DoGetPixel(x, y, col); }
- bool GetPixel(const wxPoint& pt, wxColour *col) const
- { return DoGetPixel(pt.x, pt.y, col); }
+#endif // WXWIN_COMPATIBILITY_2_8
- void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
- { DoDrawLine(x1, y1, x2, y2); }
- void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
- { DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); }
- void CrossHair(wxCoord x, wxCoord y)
- { DoCrossHair(x, y); }
- void CrossHair(const wxPoint& pt)
- { DoCrossHair(pt.x, pt.y); }
+//-----------------------------------------------------------------------------
+// wxDCFactory
+//-----------------------------------------------------------------------------
- void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
- wxCoord xc, wxCoord yc)
- { DoDrawArc(x1, y1, x2, y2, xc, yc); }
- void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
- { DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); }
+class WXDLLIMPEXP_FWD_CORE wxDCImpl;
- void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
- double sa, double ea)
- { DoDrawEllipticArc(x, y, w, h, sa, ea); }
- void DrawEllipticArc(const wxPoint& pt, const wxSize& sz,
- double sa, double ea)
- { DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); }
+class WXDLLIMPEXP_CORE wxDCFactory
+{
+public:
+ wxDCFactory() {}
+ virtual ~wxDCFactory() {}
+
+ virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window ) = 0;
+ virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window ) = 0;
+ virtual wxDCImpl* CreatePaintDC( wxPaintDC *owner, wxWindow *window ) = 0;
+ virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner ) = 0;
+ virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap ) = 0;
+ virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxDC *dc ) = 0;
+ virtual wxDCImpl* CreateScreenDC( wxScreenDC *owner ) = 0;
+#if wxUSE_PRINTING_ARCHITECTURE
+ virtual wxDCImpl* CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data ) = 0;
+#endif
- void DrawPoint(wxCoord x, wxCoord y)
- { DoDrawPoint(x, y); }
- void DrawPoint(const wxPoint& pt)
- { DoDrawPoint(pt.x, pt.y); }
+ static void Set(wxDCFactory *factory);
+ static wxDCFactory *Get();
- void DrawLines(int n, wxPoint points[],
- wxCoord xoffset = 0, wxCoord yoffset = 0)
- { DoDrawLines(n, points, xoffset, yoffset); }
- void DrawLines(const wxList *list,
- wxCoord xoffset = 0, wxCoord yoffset = 0);
+private:
+ static wxDCFactory *m_factory;
+};
- void DrawPolygon(int n, wxPoint points[],
- wxCoord xoffset = 0, wxCoord yoffset = 0,
- int fillStyle = wxODDEVEN_RULE)
- { DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); }
+//-----------------------------------------------------------------------------
+// wxNativeDCFactory
+//-----------------------------------------------------------------------------
- void DrawPolygon(const wxList *list,
- wxCoord xoffset = 0, wxCoord yoffset = 0,
- int fillStyle = wxODDEVEN_RULE);
+class WXDLLIMPEXP_CORE wxNativeDCFactory: public wxDCFactory
+{
+public:
+ wxNativeDCFactory() {}
+
+ virtual wxDCImpl* CreateWindowDC( wxWindowDC *owner, wxWindow *window );
+ virtual wxDCImpl* CreateClientDC( wxClientDC *owner, wxWindow *window );
+ virtual wxDCImpl* CreatePaintDC( wxPaintDC *owner, wxWindow *window );
+ virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner );
+ virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxBitmap &bitmap );
+ virtual wxDCImpl* CreateMemoryDC( wxMemoryDC *owner, wxDC *dc );
+ virtual wxDCImpl* CreateScreenDC( wxScreenDC *owner );
+#if wxUSE_PRINTING_ARCHITECTURE
+ virtual wxDCImpl* CreatePrinterDC( wxPrinterDC *owner, const wxPrintData &data );
+#endif
+};
- void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
- { DoDrawRectangle(x, y, width, height); }
- void DrawRectangle(const wxPoint& pt, const wxSize& sz)
- { DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); }
- void DrawRectangle(const wxRect& rect)
- { DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); }
+//-----------------------------------------------------------------------------
+// wxDCImpl
+//-----------------------------------------------------------------------------
- void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height,
- double radius)
- { DoDrawRoundedRectangle(x, y, width, height, radius); }
- void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz,
- double radius)
- { DoDrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); }
- void DrawRoundedRectangle(const wxRect& r, double radius)
- { DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); }
+class WXDLLIMPEXP_CORE wxDCImpl: public wxObject
+{
+public:
+ wxDCImpl( wxDC *owner );
+ virtual ~wxDCImpl();
- void DrawCircle(wxCoord x, wxCoord y, wxCoord radius)
- { DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); }
- void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
- { DoDrawEllipse(x, y, width, height); }
- void DrawEllipse(const wxPoint& pt, const wxSize& sz)
- { DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); }
- void DrawEllipse(const wxRect& rect)
- { DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); }
+ wxDC *GetOwner() const { return m_owner; }
- void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
- { DoDrawIcon(icon, x, y); }
- void DrawIcon(const wxIcon& icon, const wxPoint& pt)
- { DoDrawIcon(icon, pt.x, pt.y); }
+ wxWindow* GetWindow() const { return m_window; }
- void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
- bool useMask = FALSE)
- { DoDrawBitmap(bmp, x, y, useMask); }
- void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,
- bool useMask = FALSE)
- { DoDrawBitmap(bmp, pt.x, pt.y, useMask); }
+ virtual bool IsOk() const { return m_ok; }
- void DrawText(const wxString& text, wxCoord x, wxCoord y)
- { DoDrawText(text, x, y); }
- void DrawText(const wxString& text, const wxPoint& pt)
- { DoDrawText(text, pt.x, pt.y); }
+ // query capabilities
- bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
- wxDC *source, wxCoord xsrc, wxCoord ysrc,
- int rop = wxCOPY, bool useMask = FALSE)
+ virtual bool CanDrawBitmap() const = 0;
+ virtual bool CanGetTextExtent() const = 0;
+
+ // get Cairo context
+ virtual void* GetCairoContext() const
{
- return DoBlit(xdest, ydest, width, height,
- source, xsrc, ysrc, rop, useMask);
+ return NULL;
}
- bool Blit(const wxPoint& destPt, const wxSize& sz,
- wxDC *source, const wxPoint& srcPt,
- int rop = wxCOPY, bool useMask = FALSE)
+
+ virtual void* GetHandle() const { return NULL; }
+
+ // query dimension, colour deps, resolution
+
+ virtual void DoGetSize(int *width, int *height) const = 0;
+ void GetSize(int *width, int *height) const
{
- return DoBlit(destPt.x, destPt.y, sz.x, sz.y,
- source, srcPt.x, srcPt.y, rop, useMask);
+ DoGetSize(width, height);
+ return ;
}
-#if wxUSE_SPLINES
- // TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)
- void DrawSpline(wxCoord x1, wxCoord y1,
- wxCoord x2, wxCoord y2,
- wxCoord x3, wxCoord y3);
- void DrawSpline(int n, wxPoint points[]);
+ wxSize GetSize() const
+ {
+ int w, h;
+ DoGetSize(&w, &h);
+ return wxSize(w, h);
+ }
- void DrawSpline(wxList *points) { DoDrawSpline(points); }
-#endif // wxUSE_SPLINES
+ virtual void DoGetSizeMM(int* width, int* height) const = 0;
- // global DC operations
- // --------------------
+ virtual int GetDepth() const = 0;
+ virtual wxSize GetPPI() const = 0;
- virtual void Clear() = 0;
+ // Right-To-Left (RTL) modes
- virtual bool StartDoc(const wxString& WXUNUSED(message)) { return TRUE; }
+ virtual void SetLayoutDirection(wxLayoutDirection WXUNUSED(dir)) { }
+ virtual wxLayoutDirection GetLayoutDirection() const { return wxLayout_Default; }
+
+ // page and document
+
+ virtual bool StartDoc(const wxString& WXUNUSED(message)) { return true; }
virtual void EndDoc() { }
virtual void StartPage() { }
virtual void EndPage() { }
- // set objects to use for drawing
- // ------------------------------
+ // flushing the content of this dc immediately eg onto screen
+ virtual void Flush() { }
+
+ // bounding box
+
+ virtual void CalcBoundingBox(wxCoord x, wxCoord y)
+ {
+ if ( m_isBBoxValid )
+ {
+ if ( x < m_minX ) m_minX = x;
+ if ( y < m_minY ) m_minY = y;
+ if ( x > m_maxX ) m_maxX = x;
+ if ( y > m_maxY ) m_maxY = y;
+ }
+ else
+ {
+ m_isBBoxValid = true;
+
+ m_minX = x;
+ m_minY = y;
+ m_maxX = x;
+ m_maxY = y;
+ }
+ }
+ void ResetBoundingBox()
+ {
+ m_isBBoxValid = false;
+
+ m_minX = m_maxX = m_minY = m_maxY = 0;
+ }
+
+ wxCoord MinX() const { return m_minX; }
+ wxCoord MaxX() const { return m_maxX; }
+ wxCoord MinY() const { return m_minY; }
+ wxCoord MaxY() const { return m_maxY; }
+
+ // setters and getters
virtual void SetFont(const wxFont& font) = 0;
+ virtual const wxFont& GetFont() const { return m_font; }
+
virtual void SetPen(const wxPen& pen) = 0;
+ virtual const wxPen& GetPen() const { return m_pen; }
+
virtual void SetBrush(const wxBrush& brush) = 0;
+ virtual const wxBrush& GetBrush() const { return m_brush; }
+
virtual void SetBackground(const wxBrush& brush) = 0;
- virtual void SetBackgroundMode(int mode) = 0;
- virtual void SetPalette(const wxPalette& palette) = 0;
+ virtual const wxBrush& GetBackground() const { return m_backgroundBrush; }
- // clipping region
- // ---------------
+ virtual void SetBackgroundMode(int mode) = 0;
+ virtual int GetBackgroundMode() const { return m_backgroundMode; }
- void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
- { DoSetClippingRegion(x, y, width, height); }
- void SetClippingRegion(const wxPoint& pt, const wxSize& sz)
- { DoSetClippingRegion(pt.x, pt.y, sz.x, sz.y); }
- void SetClippingRegion(const wxRect& rect)
- { DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height); }
- void SetClippingRegion(const wxRegion& region)
- { DoSetClippingRegionAsRegion(region); }
+ virtual void SetTextForeground(const wxColour& colour)
+ { m_textForegroundColour = colour; }
+ virtual const wxColour& GetTextForeground() const
+ { return m_textForegroundColour; }
- virtual void DestroyClippingRegion() = 0;
+ virtual void SetTextBackground(const wxColour& colour)
+ { m_textBackgroundColour = colour; }
+ virtual const wxColour& GetTextBackground() const
+ { return m_textBackgroundColour; }
- void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
- { DoGetClippingBox(x, y, w, h); }
- void GetClippingBox(wxRect& rect) const
- { DoGetClippingBox(&rect.x, &rect.y, &rect.width, &rect.height); }
+#if wxUSE_PALETTE
+ virtual void SetPalette(const wxPalette& palette) = 0;
+#endif // wxUSE_PALETTE
- // text extent
- // -----------
+ // inherit the DC attributes (font and colours) from the given window
+ //
+ // this is called automatically when a window, client or paint DC is
+ // created
+ virtual void InheritAttributes(wxWindow *win);
- virtual wxCoord GetCharHeight() const = 0;
- virtual wxCoord GetCharWidth() const = 0;
- void GetTextExtent(const wxString& string,
- wxCoord *x, wxCoord *y,
- wxCoord *descent = NULL,
- wxCoord *externalLeading = NULL,
- wxFont *theFont = NULL) const
- { DoGetTextExtent(string, x, y, descent, externalLeading, theFont); }
- // size and resolution
- // -------------------
+ // logical functions
- // in device units
- void GetSize(int *width, int *height) const
- { DoGetSize(width, height); }
- wxSize GetSize() const
- {
- int w, h;
- DoGetSize(&w, &h);
+ virtual void SetLogicalFunction(wxRasterOperationMode function) = 0;
+ virtual wxRasterOperationMode GetLogicalFunction() const
+ { return m_logicalFunction; }
- return wxSize(w, h);
- }
+ // text measurement
- // in mm
- void GetSizeMM(int* width, int* height) const
- { DoGetSizeMM(width, height); }
- wxSize GetSizeMM() const
- {
- int w, h;
- DoGetSizeMM(&w, &h);
+ virtual wxCoord GetCharHeight() const = 0;
+ virtual wxCoord GetCharWidth() const = 0;
- return wxSize(w, h);
- }
+ // The derived classes should really override DoGetFontMetrics() to return
+ // the correct values in the future but for now provide a default
+ // implementation in terms of DoGetTextExtent() to avoid breaking the
+ // compilation of all other ports as wxMSW is the only one to implement it.
+ virtual void DoGetFontMetrics(int *height,
+ int *ascent,
+ int *descent,
+ int *internalLeading,
+ int *externalLeading,
+ int *averageWidth) const;
- // coordinates conversions
- // -----------------------
+ virtual void DoGetTextExtent(const wxString& string,
+ wxCoord *x, wxCoord *y,
+ wxCoord *descent = NULL,
+ wxCoord *externalLeading = NULL,
+ const wxFont *theFont = NULL) const = 0;
+ virtual void GetMultiLineTextExtent(const wxString& string,
+ wxCoord *width,
+ wxCoord *height,
+ wxCoord *heightLine = NULL,
+ const wxFont *font = NULL) const;
+ virtual bool DoGetPartialTextExtents(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;
+ // clearing
- // query DC capabilities
- // ---------------------
+ virtual void Clear() = 0;
- virtual bool CanDrawBitmap() const = 0;
- virtual bool CanGetTextExtent() const = 0;
+ // clipping
- // colour depth
- virtual int GetDepth() const = 0;
+ // Note that this pure virtual method has an implementation that updates
+ // the values returned by DoGetClippingBox() and so can be called from the
+ // derived class overridden version if it makes sense (i.e. if the clipping
+ // box coordinates are not already updated in some other way).
+ virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
+ wxCoord w, wxCoord h) = 0;
- // Resolution in Pixels per inch
- virtual wxSize GetPPI() const = 0;
+ // NB: this function works with device coordinates, not the logical ones!
+ virtual void DoSetDeviceClippingRegion(const wxRegion& region) = 0;
- virtual bool Ok() const { return m_ok; }
+ virtual void DoGetClippingBox(wxCoord *x, wxCoord *y,
+ wxCoord *w, wxCoord *h) const
+ {
+ if ( x )
+ *x = m_clipX1;
+ if ( y )
+ *y = m_clipY1;
+ if ( w )
+ *w = m_clipX2 - m_clipX1;
+ if ( h )
+ *h = m_clipY2 - m_clipY1;
+ }
- // accessors
- // ---------
+ virtual void DestroyClippingRegion() { ResetClipping(); }
- // const...
- 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; }
- const wxColour& GetTextBackground() const { return m_textBackgroundColour; }
- const wxColour& GetTextForeground() const { return m_textForegroundColour; }
- // ... and non const
- wxBrush& GetBackground() { return m_backgroundBrush; }
- wxBrush& GetBrush() { return m_brush; }
- wxFont& GetFont() { return m_font; }
- wxPen& GetPen() { return m_pen; }
- wxColour& GetTextBackground() { return m_textBackgroundColour; }
- wxColour& GetTextForeground() { return m_textForegroundColour; }
+ // coordinates conversions and transforms
- virtual void SetTextForeground(const wxColour& colour)
- { m_textForegroundColour = colour; }
- virtual void SetTextBackground(const wxColour& colour)
- { m_textBackgroundColour = colour; }
+ 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;
- int GetMapMode() const { return m_mappingMode; }
- virtual void SetMapMode(int mode) = 0;
+ virtual void SetMapMode(wxMappingMode mode);
+ virtual wxMappingMode GetMapMode() const { return m_mappingMode; }
+ 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 GetLogicalScale(double *x, double *y)
+ virtual void SetLogicalScale(double x, double y);
+ virtual void GetLogicalScale(double *x, double *y) const
{
if ( x ) *x = m_logicalScaleX;
if ( y ) *y = m_logicalScaleY;
}
- virtual void SetLogicalScale(double x, double y)
- {
- m_logicalScaleX = x;
- m_logicalScaleY = 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;
-
- 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 SetAxisOrientation(bool xLeftRight, bool yBottomUp) = 0;
-
- 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
- // ------------
- virtual void CalcBoundingBox(wxCoord x, wxCoord y)
+ virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
+ virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const
{
- if ( x < m_minX ) m_minX = x;
- if ( y < m_minY ) m_minY = y;
- if ( x > m_maxX ) m_maxX = x;
- if ( y > m_maxY ) m_maxY = y;
+ if ( x ) *x = m_logicalOriginX;
+ if ( y ) *y = m_logicalOriginY;
}
- // Get the final bounding box of the PostScript or Metafile picture.
- wxCoord MinX() const { return m_minX; }
- wxCoord MaxX() const { return m_maxX; }
- wxCoord MinY() const { return m_minY; }
- wxCoord MaxY() const { return m_maxY; }
-
- // misc old functions
- // ------------------
-
- // for compatibility with the old code when wxCoord was long everywhere
-#ifndef __WIN16__
- void GetTextExtent(const wxString& string,
- long *x, long *y,
- long *descent = NULL,
- long *externalLeading = NULL,
- wxFont *theFont = NULL) const
+ virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
+ virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) 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;
+ if ( x ) *x = m_deviceOriginX;
+ if ( y ) *y = m_deviceOriginY;
}
- void GetLogicalOrigin(long *x, long *y) const
+#if wxUSE_DC_TRANSFORM_MATRIX
+ // Transform matrix support is not available in most ports right now
+ // (currently only wxMSW provides it) so do nothing in these methods by
+ // default.
+ virtual bool CanUseTransformMatrix() const
+ { return false; }
+ virtual bool SetTransformMatrix(const wxAffineMatrix2D& WXUNUSED(matrix))
+ { return false; }
+ virtual wxAffineMatrix2D GetTransformMatrix() const
+ { return wxAffineMatrix2D(); }
+ virtual void ResetTransformMatrix()
+ { }
+#endif // wxUSE_DC_TRANSFORM_MATRIX
+
+ virtual void SetDeviceLocalOrigin( wxCoord x, wxCoord y );
+
+ virtual void ComputeScaleAndOrigin();
+
+ // this needs to overidden if the axis is inverted
+ virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
+
+#ifdef __WXMSW__
+ // Native Windows functions using the underlying HDC don't honour GDI+
+ // transformations which may be applied to it. Using this function we can
+ // transform the coordinates manually before passing them to such functions
+ // (as in e.g. wxRendererMSW code). It doesn't do anything if this is not a
+ // wxGCDC.
+ virtual wxRect MSWApplyGDIPlusTransform(const wxRect& r) const
{
- wxCoord x2, y2;
- DoGetLogicalOrigin(&x2, &y2);
- if ( x )
- *x = x2;
- if ( y )
- *y = y2;
+ return r;
}
+#endif // __WXMSW__
- void GetDeviceOrigin(long *x, long *y) const
- {
- wxCoord x2, y2;
- DoGetDeviceOrigin(&x2, &y2);
- if ( x )
- *x = x2;
- if ( y )
- *y = y2;
- }
-#endif // !Win16
-#if WXWIN_COMPATIBILITY
- virtual void SetColourMap(const wxPalette& palette) { SetPalette(palette); }
- void GetTextExtent(const wxString& string, float *x, float *y,
- float *descent = NULL, float *externalLeading = NULL,
- wxFont *theFont = NULL, bool use16bit = FALSE) const ;
- void GetSize(float* width, float* height) const { int w, h; GetSize(& w, & h); *width = w; *height = h; }
- void GetSizeMM(float *width, float *height) const { long w, h; GetSizeMM(& w, & h); *width = (float) w; *height = (float) h; }
-#endif // WXWIN_COMPATIBILITY
+ // ---------------------------------------------------------
+ // the actual drawing API
-protected:
- // the pure virtual functions which should be implemented by wxDC
- virtual void DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
- int style = wxFLOOD_SURFACE) = 0;
+ virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
+ wxFloodFillStyle 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 DoDrawArc(wxCoord x1, wxCoord y1,
wxCoord x2, wxCoord y2,
wxCoord xc, wxCoord yc) = 0;
+ virtual void DoDrawCheckMark(wxCoord x, wxCoord y,
+ wxCoord width, wxCoord height);
virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
double sa, double ea) = 0;
virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) = 0;
virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
- bool useMask = FALSE) = 0;
+ bool useMask = false) = 0;
virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) = 0;
+ virtual void DoDrawRotatedText(const wxString& text,
+ wxCoord x, wxCoord y, double angle) = 0;
virtual bool DoBlit(wxCoord xdest, wxCoord ydest,
wxCoord width, wxCoord height,
- wxDC *source, wxCoord xsrc, wxCoord ysrc,
- int rop = wxCOPY, bool useMask = FALSE) = 0;
+ wxDC *source,
+ wxCoord xsrc, wxCoord ysrc,
+ wxRasterOperationMode 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,
+ wxRasterOperationMode 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 DoDrawLines(int n, wxPoint points[],
- wxCoord xoffset, wxCoord yoffset) = 0;
+ wxCoord xoffset, wxCoord yoffset ) = 0;
+ virtual void DrawLines(const wxPointList *list,
+ wxCoord xoffset, wxCoord yoffset );
+
virtual void DoDrawPolygon(int n, wxPoint points[],
+ wxCoord xoffset, wxCoord yoffset,
+ wxPolygonFillMode fillStyle = wxODDEVEN_RULE) = 0;
+ virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
- int fillStyle = wxODDEVEN_RULE) = 0;
+ wxPolygonFillMode fillStyle);
+ void DrawPolygon(const wxPointList *list,
+ wxCoord xoffset, wxCoord yoffset,
+ wxPolygonFillMode fillStyle );
- virtual void DoSetClippingRegionAsRegion(const wxRegion& region) = 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
- {
- if ( m_clipping )
- {
- if ( x ) *x = m_clipX1;
- if ( y ) *y = m_clipY1;
- if ( w ) *w = m_clipX2 - m_clipX1;
- if ( h ) *h = m_clipY2 - m_clipY1;
- }
- else
- {
- *x = *y = *w = *h = 0;
- }
- }
+#if wxUSE_SPLINES
+ void DrawSpline(wxCoord x1, wxCoord y1,
+ wxCoord x2, wxCoord y2,
+ wxCoord x3, wxCoord y3);
+ void DrawSpline(int n, wxPoint points[]);
+ void DrawSpline(const wxPointList *points) { DoDrawSpline(points); }
- virtual void DoGetLogicalOrigin(wxCoord *x, wxCoord *y) const
- {
- if ( x ) *x = m_logicalOriginX;
- if ( y ) *y = m_logicalOriginY;
- }
+ virtual void DoDrawSpline(const wxPointList *points);
+#endif
- virtual void DoGetDeviceOrigin(wxCoord *x, wxCoord *y) const
- {
- if ( x ) *x = m_deviceOriginX;
- if ( y ) *y = m_deviceOriginY;
- }
+ // ---------------------------------------------------------
+ // wxMemoryDC Impl API
- virtual void DoGetTextExtent(const wxString& string,
- wxCoord *x, wxCoord *y,
- wxCoord *descent = NULL,
- wxCoord *externalLeading = NULL,
- wxFont *theFont = NULL) const = 0;
+ virtual void DoSelect(const wxBitmap& WXUNUSED(bmp))
+ { }
-#if wxUSE_SPLINES
- virtual void DoDrawSpline(wxList *points) = 0;
-#endif
+ virtual const wxBitmap& GetSelectedBitmap() const
+ { return wxNullBitmap; }
+ virtual wxBitmap& GetSelectedBitmap()
+ { return wxNullBitmap; }
+
+ // ---------------------------------------------------------
+ // wxPrinterDC Impl API
+
+ virtual wxRect GetPaperRect() const
+ { int w = 0; int h = 0; DoGetSize( &w, &h ); return wxRect(0,0,w,h); }
+
+ virtual int GetResolution() const
+ { return -1; }
+
+#if wxUSE_GRAPHICS_CONTEXT
+ virtual wxGraphicsContext* GetGraphicsContext() const
+ { return NULL; }
+ virtual void SetGraphicsContext( wxGraphicsContext* WXUNUSED(ctx) )
+ {}
+#endif
+
+private:
+ wxDC *m_owner;
+
+protected:
+ // unset clipping variables (after clipping region was destroyed)
+ void ResetClipping()
+ {
+ m_clipping = false;
+
+ m_clipX1 = m_clipX2 = m_clipY1 = m_clipY2 = 0;
+ }
+
+#ifdef __WXWINCE__
+ //! Generic method to draw ellipses, circles and arcs with current pen and brush.
+ /*! \param x Upper left corner of bounding box.
+ * \param y Upper left corner of bounding box.
+ * \param w Width of bounding box.
+ * \param h Height of bounding box.
+ * \param sa Starting angle of arc
+ * (counterclockwise, start at 3 o'clock, 360 is full circle).
+ * \param ea Ending angle of arc.
+ * \param angle Rotation angle, the Arc will be rotated after
+ * calculating begin and end.
+ */
+ void DrawEllipticArcRot( wxCoord x, wxCoord y,
+ wxCoord width, wxCoord height,
+ double sa = 0, double ea = 0, double angle = 0 )
+ { DoDrawEllipticArcRot( x, y, width, height, sa, ea, angle ); }
+
+ void DrawEllipticArcRot( const wxPoint& pt,
+ const wxSize& sz,
+ double sa = 0, double ea = 0, double angle = 0 )
+ { DoDrawEllipticArcRot( pt.x, pt.y, sz.x, sz.y, sa, ea, angle ); }
+
+ void DrawEllipticArcRot( const wxRect& rect,
+ double sa = 0, double ea = 0, double angle = 0 )
+ { DoDrawEllipticArcRot( rect.x, rect.y, rect.width, rect.height, sa, ea, angle ); }
+
+ virtual void DoDrawEllipticArcRot( wxCoord x, wxCoord y,
+ wxCoord w, wxCoord h,
+ double sa = 0, double ea = 0, double angle = 0 );
+
+ //! Rotates points around center.
+ /*! This is a quite straight method, it calculates in pixels
+ * and so it produces rounding errors.
+ * \param points The points inside will be rotated.
+ * \param angle Rotating angle (counterclockwise, start at 3 o'clock, 360 is full circle).
+ * \param center Center of rotation.
+ */
+ void Rotate( wxPointList* points, double angle, wxPoint center = wxPoint(0,0) );
+
+ // used by DrawEllipticArcRot
+ // Careful: wxList gets filled with points you have to delete later.
+ void CalculateEllipticPoints( wxPointList* points,
+ wxCoord xStart, wxCoord yStart,
+ wxCoord w, wxCoord h,
+ double sa, double ea );
+#endif // __WXWINCE__
+
+ // returns adjustment factor for converting wxFont "point size"; in wx
+ // it is point size on screen and needs to be multiplied by this value
+ // for rendering on higher-resolution DCs such as printer ones
+ static float GetFontPointSizeAdjustment(float dpi);
+
+ // window on which the DC draws or NULL
+ wxWindow *m_window;
-protected:
// flags
bool m_colour:1;
bool m_ok:1;
bool m_clipping:1;
bool m_isInteractive:1;
+ bool m_isBBoxValid:1;
// coordinate system variables
- // 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
+
+ int m_signX, m_signY; // Used by SetAxisOrientation() to invert the axes
- // 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;
- int m_logicalFunction;
+ wxRasterOperationMode m_logicalFunction;
int m_backgroundMode;
- int m_mappingMode;
+ wxMappingMode m_mappingMode;
- // GDI objects
wxPen m_pen;
wxBrush m_brush;
wxBrush m_backgroundBrush;
wxColour m_textForegroundColour;
wxColour m_textBackgroundColour;
wxFont m_font;
+
+#if wxUSE_PALETTE
wxPalette m_palette;
+ bool m_hasCustomPalette;
+#endif // wxUSE_PALETTE
+
+private:
+ DECLARE_ABSTRACT_CLASS(wxDCImpl)
+};
+
+
+class WXDLLIMPEXP_CORE wxDC : public wxObject
+{
+public:
+ // copy attributes (font, colours and writing direction) from another DC
+ void CopyAttributes(const wxDC& dc);
+
+ virtual ~wxDC() { delete m_pimpl; }
+
+ wxDCImpl *GetImpl()
+ { return m_pimpl; }
+ const wxDCImpl *GetImpl() const
+ { return m_pimpl; }
+
+ wxWindow *GetWindow() const
+ { return m_pimpl->GetWindow(); }
+
+ void *GetHandle() const
+ { return m_pimpl->GetHandle(); }
+
+ bool IsOk() const
+ { return m_pimpl && m_pimpl->IsOk(); }
+
+ // query capabilities
+
+ bool CanDrawBitmap() const
+ { return m_pimpl->CanDrawBitmap(); }
+ bool CanGetTextExtent() const
+ { return m_pimpl->CanGetTextExtent(); }
+
+ // query dimension, colour deps, resolution
+
+ void GetSize(int *width, int *height) const
+ { m_pimpl->DoGetSize(width, height); }
+ wxSize GetSize() const
+ { return m_pimpl->GetSize(); }
+
+ void GetSizeMM(int* width, int* height) const
+ { m_pimpl->DoGetSizeMM(width, height); }
+ wxSize GetSizeMM() const
+ {
+ int w, h;
+ m_pimpl->DoGetSizeMM(&w, &h);
+ return wxSize(w, h);
+ }
+
+ int GetDepth() const
+ { return m_pimpl->GetDepth(); }
+ wxSize GetPPI() const
+ { return m_pimpl->GetPPI(); }
+
+ virtual int GetResolution() const
+ { return m_pimpl->GetResolution(); }
+
+ // Right-To-Left (RTL) modes
+
+ void SetLayoutDirection(wxLayoutDirection dir)
+ { m_pimpl->SetLayoutDirection( dir ); }
+ wxLayoutDirection GetLayoutDirection() const
+ { return m_pimpl->GetLayoutDirection(); }
+
+ // page and document
+
+ bool StartDoc(const wxString& message)
+ { return m_pimpl->StartDoc(message); }
+ void EndDoc()
+ { m_pimpl->EndDoc(); }
+
+ void StartPage()
+ { m_pimpl->StartPage(); }
+ void EndPage()
+ { m_pimpl->EndPage(); }
+
+ // bounding box
+
+ void CalcBoundingBox(wxCoord x, wxCoord y)
+ { m_pimpl->CalcBoundingBox(x,y); }
+ void ResetBoundingBox()
+ { m_pimpl->ResetBoundingBox(); }
+
+ wxCoord MinX() const
+ { return m_pimpl->MinX(); }
+ wxCoord MaxX() const
+ { return m_pimpl->MaxX(); }
+ wxCoord MinY() const
+ { return m_pimpl->MinY(); }
+ wxCoord MaxY() const
+ { return m_pimpl->MaxY(); }
+
+ // setters and getters
+
+ void SetFont(const wxFont& font)
+ { m_pimpl->SetFont( font ); }
+ const wxFont& GetFont() const
+ { return m_pimpl->GetFont(); }
+
+ void SetPen(const wxPen& pen)
+ { m_pimpl->SetPen( pen ); }
+ const wxPen& GetPen() const
+ { return m_pimpl->GetPen(); }
+
+ void SetBrush(const wxBrush& brush)
+ { m_pimpl->SetBrush( brush ); }
+ const wxBrush& GetBrush() const
+ { return m_pimpl->GetBrush(); }
+
+ void SetBackground(const wxBrush& brush)
+ { m_pimpl->SetBackground( brush ); }
+ const wxBrush& GetBackground() const
+ { return m_pimpl->GetBackground(); }
+
+ void SetBackgroundMode(int mode)
+ { m_pimpl->SetBackgroundMode( mode ); }
+ int GetBackgroundMode() const
+ { return m_pimpl->GetBackgroundMode(); }
+
+ void SetTextForeground(const wxColour& colour)
+ { m_pimpl->SetTextForeground(colour); }
+ const wxColour& GetTextForeground() const
+ { return m_pimpl->GetTextForeground(); }
+
+ void SetTextBackground(const wxColour& colour)
+ { m_pimpl->SetTextBackground(colour); }
+ const wxColour& GetTextBackground() const
+ { return m_pimpl->GetTextBackground(); }
+
+#if wxUSE_PALETTE
+ void SetPalette(const wxPalette& palette)
+ { m_pimpl->SetPalette(palette); }
+#endif // wxUSE_PALETTE
+
+ // logical functions
+
+ void SetLogicalFunction(wxRasterOperationMode function)
+ { m_pimpl->SetLogicalFunction(function); }
+ wxRasterOperationMode GetLogicalFunction() const
+ { return m_pimpl->GetLogicalFunction(); }
+
+ // text measurement
+
+ wxCoord GetCharHeight() const
+ { return m_pimpl->GetCharHeight(); }
+ wxCoord GetCharWidth() const
+ { return m_pimpl->GetCharWidth(); }
+
+ wxFontMetrics GetFontMetrics() const
+ {
+ wxFontMetrics fm;
+ m_pimpl->DoGetFontMetrics(&fm.height, &fm.ascent, &fm.descent,
+ &fm.internalLeading, &fm.externalLeading,
+ &fm.averageWidth);
+ return fm;
+ }
+
+ void GetTextExtent(const wxString& string,
+ wxCoord *x, wxCoord *y,
+ wxCoord *descent = NULL,
+ wxCoord *externalLeading = NULL,
+ const wxFont *theFont = NULL) const
+ { m_pimpl->DoGetTextExtent(string, x, y, descent, externalLeading, theFont); }
+
+ wxSize GetTextExtent(const wxString& string) const
+ {
+ wxCoord w, h;
+ m_pimpl->DoGetTextExtent(string, &w, &h);
+ return wxSize(w, h);
+ }
+
+ void GetMultiLineTextExtent(const wxString& string,
+ wxCoord *width,
+ wxCoord *height,
+ wxCoord *heightLine = NULL,
+ const wxFont *font = NULL) const
+ { m_pimpl->GetMultiLineTextExtent( string, width, height, heightLine, font ); }
+
+ wxSize GetMultiLineTextExtent(const wxString& string) const
+ {
+ wxCoord w, h;
+ m_pimpl->GetMultiLineTextExtent(string, &w, &h);
+ return wxSize(w, h);
+ }
+
+ bool GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const
+ { return m_pimpl->DoGetPartialTextExtents(text, widths); }
+
+ // clearing
+
+ void Clear()
+ { m_pimpl->Clear(); }
+
+ // clipping
+
+ void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+ { m_pimpl->DoSetClippingRegion(x, y, width, height); }
+ void SetClippingRegion(const wxPoint& pt, const wxSize& sz)
+ { m_pimpl->DoSetClippingRegion(pt.x, pt.y, sz.x, sz.y); }
+ void SetClippingRegion(const wxRect& rect)
+ { m_pimpl->DoSetClippingRegion(rect.x, rect.y, rect.width, rect.height); }
+
+ // unlike the functions above, the coordinates of the region used in this
+ // one are in device coordinates, not the logical ones
+ void SetDeviceClippingRegion(const wxRegion& region)
+ { m_pimpl->DoSetDeviceClippingRegion(region); }
+
+ // this function is deprecated because its name is confusing: you may
+ // expect it to work with logical coordinates but, in fact, it does exactly
+ // the same thing as SetDeviceClippingRegion()
+ //
+ // please review the code using it and either replace it with calls to
+ // SetDeviceClippingRegion() or correct it if it was [wrongly] passing
+ // logical coordinates to this function
+ wxDEPRECATED_INLINE(void SetClippingRegion(const wxRegion& region),
+ SetDeviceClippingRegion(region); )
+
+ void DestroyClippingRegion()
+ { m_pimpl->DestroyClippingRegion(); }
+
+ void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *w, wxCoord *h) const
+ { m_pimpl->DoGetClippingBox(x, y, w, h); }
+ void GetClippingBox(wxRect& rect) const
+ { m_pimpl->DoGetClippingBox(&rect.x, &rect.y, &rect.width, &rect.height); }
+
+ // coordinates conversions and transforms
+
+ wxCoord DeviceToLogicalX(wxCoord x) const
+ { return m_pimpl->DeviceToLogicalX(x); }
+ wxCoord DeviceToLogicalY(wxCoord y) const
+ { return m_pimpl->DeviceToLogicalY(y); }
+ wxCoord DeviceToLogicalXRel(wxCoord x) const
+ { return m_pimpl->DeviceToLogicalXRel(x); }
+ wxCoord DeviceToLogicalYRel(wxCoord y) const
+ { return m_pimpl->DeviceToLogicalYRel(y); }
+ wxCoord LogicalToDeviceX(wxCoord x) const
+ { return m_pimpl->LogicalToDeviceX(x); }
+ wxCoord LogicalToDeviceY(wxCoord y) const
+ { return m_pimpl->LogicalToDeviceY(y); }
+ wxCoord LogicalToDeviceXRel(wxCoord x) const
+ { return m_pimpl->LogicalToDeviceXRel(x); }
+ wxCoord LogicalToDeviceYRel(wxCoord y) const
+ { return m_pimpl->LogicalToDeviceYRel(y); }
+
+ void SetMapMode(wxMappingMode mode)
+ { m_pimpl->SetMapMode(mode); }
+ wxMappingMode GetMapMode() const
+ { return m_pimpl->GetMapMode(); }
+
+ void SetUserScale(double x, double y)
+ { m_pimpl->SetUserScale(x,y); }
+ void GetUserScale(double *x, double *y) const
+ { m_pimpl->GetUserScale( x, y ); }
+
+ void SetLogicalScale(double x, double y)
+ { m_pimpl->SetLogicalScale( x, y ); }
+ void GetLogicalScale(double *x, double *y) const
+ { m_pimpl->GetLogicalScale( x, y ); }
+
+ void SetLogicalOrigin(wxCoord x, wxCoord y)
+ { m_pimpl->SetLogicalOrigin(x,y); }
+ void GetLogicalOrigin(wxCoord *x, wxCoord *y) const
+ { m_pimpl->DoGetLogicalOrigin(x, y); }
+ wxPoint GetLogicalOrigin() const
+ { wxCoord x, y; m_pimpl->DoGetLogicalOrigin(&x, &y); return wxPoint(x, y); }
+
+ void SetDeviceOrigin(wxCoord x, wxCoord y)
+ { m_pimpl->SetDeviceOrigin( x, y); }
+ void GetDeviceOrigin(wxCoord *x, wxCoord *y) const
+ { m_pimpl->DoGetDeviceOrigin(x, y); }
+ wxPoint GetDeviceOrigin() const
+ { wxCoord x, y; m_pimpl->DoGetDeviceOrigin(&x, &y); return wxPoint(x, y); }
+
+ void SetAxisOrientation(bool xLeftRight, bool yBottomUp)
+ { m_pimpl->SetAxisOrientation(xLeftRight, yBottomUp); }
+
+#if wxUSE_DC_TRANSFORM_MATRIX
+ bool CanUseTransformMatrix() const
+ { return m_pimpl->CanUseTransformMatrix(); }
+
+ bool SetTransformMatrix(const wxAffineMatrix2D &matrix)
+ { return m_pimpl->SetTransformMatrix(matrix); }
+
+ wxAffineMatrix2D GetTransformMatrix() const
+ { return m_pimpl->GetTransformMatrix(); }
+
+ void ResetTransformMatrix()
+ { m_pimpl->ResetTransformMatrix(); }
+#endif // wxUSE_DC_TRANSFORM_MATRIX
+
+ // mostly internal
+ void SetDeviceLocalOrigin( wxCoord x, wxCoord y )
+ { m_pimpl->SetDeviceLocalOrigin( x, y ); }
+
+
+ // -----------------------------------------------
+ // the actual drawing API
+
+ bool FloodFill(wxCoord x, wxCoord y, const wxColour& col,
+ wxFloodFillStyle style = wxFLOOD_SURFACE)
+ { return m_pimpl->DoFloodFill(x, y, col, style); }
+ bool FloodFill(const wxPoint& pt, const wxColour& col,
+ wxFloodFillStyle style = wxFLOOD_SURFACE)
+ { return m_pimpl->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)
+ { m_pimpl->DoGradientFillConcentric( rect, initialColour, destColour,
+ wxPoint(rect.GetWidth() / 2,
+ rect.GetHeight() / 2)); }
+
+ void GradientFillConcentric(const wxRect& rect,
+ const wxColour& initialColour,
+ const wxColour& destColour,
+ const wxPoint& circleCenter)
+ { m_pimpl->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)
+ { m_pimpl->DoGradientFillLinear(rect, initialColour, destColour, nDirection); }
+
+ bool GetPixel(wxCoord x, wxCoord y, wxColour *col) const
+ { return m_pimpl->DoGetPixel(x, y, col); }
+ bool GetPixel(const wxPoint& pt, wxColour *col) const
+ { return m_pimpl->DoGetPixel(pt.x, pt.y, col); }
+
+ void DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
+ { m_pimpl->DoDrawLine(x1, y1, x2, y2); }
+ void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
+ { m_pimpl->DoDrawLine(pt1.x, pt1.y, pt2.x, pt2.y); }
+
+ void CrossHair(wxCoord x, wxCoord y)
+ { m_pimpl->DoCrossHair(x, y); }
+ void CrossHair(const wxPoint& pt)
+ { m_pimpl->DoCrossHair(pt.x, pt.y); }
+
+ void DrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2,
+ wxCoord xc, wxCoord yc)
+ { m_pimpl->DoDrawArc(x1, y1, x2, y2, xc, yc); }
+ void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
+ { m_pimpl->DoDrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y); }
+
+ void DrawCheckMark(wxCoord x, wxCoord y,
+ wxCoord width, wxCoord height)
+ { m_pimpl->DoDrawCheckMark(x, y, width, height); }
+ void DrawCheckMark(const wxRect& rect)
+ { m_pimpl->DoDrawCheckMark(rect.x, rect.y, rect.width, rect.height); }
+
+ void DrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
+ double sa, double ea)
+ { m_pimpl->DoDrawEllipticArc(x, y, w, h, sa, ea); }
+ void DrawEllipticArc(const wxPoint& pt, const wxSize& sz,
+ double sa, double ea)
+ { m_pimpl->DoDrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea); }
+
+ void DrawPoint(wxCoord x, wxCoord y)
+ { m_pimpl->DoDrawPoint(x, y); }
+ void DrawPoint(const wxPoint& pt)
+ { m_pimpl->DoDrawPoint(pt.x, pt.y); }
+
+ void DrawLines(int n, wxPoint points[],
+ wxCoord xoffset = 0, wxCoord yoffset = 0)
+ { m_pimpl->DoDrawLines(n, points, xoffset, yoffset); }
+ void DrawLines(const wxPointList *list,
+ wxCoord xoffset = 0, wxCoord yoffset = 0)
+ { m_pimpl->DrawLines( list, xoffset, yoffset ); }
+#if WXWIN_COMPATIBILITY_2_8
+ wxDEPRECATED( void DrawLines(const wxList *list,
+ wxCoord xoffset = 0, wxCoord yoffset = 0) );
+#endif // WXWIN_COMPATIBILITY_2_8
+
+ void DrawPolygon(int n, wxPoint points[],
+ wxCoord xoffset = 0, wxCoord yoffset = 0,
+ wxPolygonFillMode fillStyle = wxODDEVEN_RULE)
+ { m_pimpl->DoDrawPolygon(n, points, xoffset, yoffset, fillStyle); }
+ void DrawPolygon(const wxPointList *list,
+ wxCoord xoffset = 0, wxCoord yoffset = 0,
+ wxPolygonFillMode fillStyle = wxODDEVEN_RULE)
+ { m_pimpl->DrawPolygon( list, xoffset, yoffset, fillStyle ); }
+ void DrawPolyPolygon(int n, int count[], wxPoint points[],
+ wxCoord xoffset = 0, wxCoord yoffset = 0,
+ wxPolygonFillMode fillStyle = wxODDEVEN_RULE)
+ { m_pimpl->DoDrawPolyPolygon(n, count, points, xoffset, yoffset, fillStyle); }
+#if WXWIN_COMPATIBILITY_2_8
+ wxDEPRECATED( void DrawPolygon(const wxList *list,
+ wxCoord xoffset = 0, wxCoord yoffset = 0,
+ wxPolygonFillMode fillStyle = wxODDEVEN_RULE) );
+#endif // WXWIN_COMPATIBILITY_2_8
+
+ void DrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+ { m_pimpl->DoDrawRectangle(x, y, width, height); }
+ void DrawRectangle(const wxPoint& pt, const wxSize& sz)
+ { m_pimpl->DoDrawRectangle(pt.x, pt.y, sz.x, sz.y); }
+ void DrawRectangle(const wxRect& rect)
+ { m_pimpl->DoDrawRectangle(rect.x, rect.y, rect.width, rect.height); }
+
+ void DrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height,
+ double radius)
+ { m_pimpl->DoDrawRoundedRectangle(x, y, width, height, radius); }
+ void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz,
+ double radius)
+ { m_pimpl->DoDrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius); }
+ void DrawRoundedRectangle(const wxRect& r, double radius)
+ { m_pimpl->DoDrawRoundedRectangle(r.x, r.y, r.width, r.height, radius); }
+
+ void DrawCircle(wxCoord x, wxCoord y, wxCoord radius)
+ { m_pimpl->DoDrawEllipse(x - radius, y - radius, 2*radius, 2*radius); }
+ void DrawCircle(const wxPoint& pt, wxCoord radius)
+ { m_pimpl->DoDrawEllipse(pt.x - radius, pt.y - radius, 2*radius, 2*radius); }
+
+ void DrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+ { m_pimpl->DoDrawEllipse(x, y, width, height); }
+ void DrawEllipse(const wxPoint& pt, const wxSize& sz)
+ { m_pimpl->DoDrawEllipse(pt.x, pt.y, sz.x, sz.y); }
+ void DrawEllipse(const wxRect& rect)
+ { m_pimpl->DoDrawEllipse(rect.x, rect.y, rect.width, rect.height); }
+
+ void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
+ { m_pimpl->DoDrawIcon(icon, x, y); }
+ void DrawIcon(const wxIcon& icon, const wxPoint& pt)
+ { m_pimpl->DoDrawIcon(icon, pt.x, pt.y); }
+
+ void DrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
+ bool useMask = false)
+ { m_pimpl->DoDrawBitmap(bmp, x, y, useMask); }
+ void DrawBitmap(const wxBitmap &bmp, const wxPoint& pt,
+ bool useMask = false)
+ { m_pimpl->DoDrawBitmap(bmp, pt.x, pt.y, useMask); }
+
+ void DrawText(const wxString& text, wxCoord x, wxCoord y)
+ { m_pimpl->DoDrawText(text, x, y); }
+ void DrawText(const wxString& text, const wxPoint& pt)
+ { m_pimpl->DoDrawText(text, pt.x, pt.y); }
+
+ void DrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
+ { m_pimpl->DoDrawRotatedText(text, x, y, angle); }
+ void DrawRotatedText(const wxString& text, const wxPoint& pt, double angle)
+ { m_pimpl->DoDrawRotatedText(text, pt.x, pt.y, angle); }
+
+ // this version puts both optional bitmap and the text into the given
+ // rectangle and aligns is as specified by alignment parameter; it also
+ // will emphasize the character with the given index if it is != -1 and
+ // return the bounding rectangle if required
+ void DrawLabel(const wxString& text,
+ const wxBitmap& image,
+ const wxRect& rect,
+ int alignment = wxALIGN_LEFT | wxALIGN_TOP,
+ int indexAccel = -1,
+ wxRect *rectBounding = NULL);
+
+ void DrawLabel(const wxString& text, const wxRect& rect,
+ int alignment = wxALIGN_LEFT | wxALIGN_TOP,
+ int indexAccel = -1)
+ { DrawLabel(text, wxNullBitmap, rect, alignment, indexAccel); }
+
+ bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
+ wxDC *source, wxCoord xsrc, wxCoord ysrc,
+ wxRasterOperationMode rop = wxCOPY, bool useMask = false,
+ wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord)
+ {
+ return m_pimpl->DoBlit(xdest, ydest, width, height,
+ source, xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
+ }
+ bool Blit(const wxPoint& destPt, const wxSize& sz,
+ wxDC *source, const wxPoint& srcPt,
+ wxRasterOperationMode rop = wxCOPY, bool useMask = false,
+ const wxPoint& srcPtMask = wxDefaultPosition)
+ {
+ return m_pimpl->DoBlit(destPt.x, destPt.y, sz.x, sz.y,
+ 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,
+ wxRasterOperationMode rop = wxCOPY, bool useMask = false,
+ wxCoord srcMaskX = wxDefaultCoord, wxCoord srcMaskY = wxDefaultCoord)
+ {
+ return m_pimpl->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,
+ wxRasterOperationMode rop = wxCOPY, bool useMask = false,
+ const wxPoint& srcMaskPt = wxDefaultPosition)
+ {
+ return m_pimpl->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 m_pimpl->DoGetAsBitmap(subrect);
+ }
+
+#if wxUSE_SPLINES
+ void DrawSpline(wxCoord x1, wxCoord y1,
+ wxCoord x2, wxCoord y2,
+ wxCoord x3, wxCoord y3)
+ { m_pimpl->DrawSpline(x1,y1,x2,y2,x3,y3); }
+ void DrawSpline(int n, wxPoint points[])
+ { m_pimpl->DrawSpline(n,points); }
+ void DrawSpline(const wxPointList *points)
+ { m_pimpl->DrawSpline(points); }
+#endif // wxUSE_SPLINES
+
+
+#if WXWIN_COMPATIBILITY_2_8
+ // for compatibility with the old code when wxCoord was long everywhere
+ wxDEPRECATED( void GetTextExtent(const wxString& string,
+ long *x, long *y,
+ long *descent = NULL,
+ long *externalLeading = NULL,
+ 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 );
+
+ wxDEPRECATED( void DrawObject(wxDrawObject* drawobject) );
+#endif // WXWIN_COMPATIBILITY_2_8
+
+#ifdef __WXMSW__
+ // GetHDC() is the simplest way to retrieve an HDC From a wxDC but only
+ // works if this wxDC is GDI-based and fails for GDI+ contexts (and
+ // anything else without HDC, e.g. wxPostScriptDC)
+ WXHDC GetHDC() const;
+
+ // don't use these methods manually, use GetTempHDC() instead
+ virtual WXHDC AcquireHDC() { return GetHDC(); }
+ virtual void ReleaseHDC(WXHDC WXUNUSED(hdc)) { }
+
+ // helper class holding the result of GetTempHDC() with std::auto_ptr<>-like
+ // semantics, i.e. it is moved when copied
+ class TempHDC
+ {
+ public:
+ TempHDC(wxDC& dc)
+ : m_dc(dc),
+ m_hdc(dc.AcquireHDC())
+ {
+ }
+
+ TempHDC(const TempHDC& thdc)
+ : m_dc(thdc.m_dc),
+ m_hdc(thdc.m_hdc)
+ {
+ const_cast<TempHDC&>(thdc).m_hdc = 0;
+ }
+
+ ~TempHDC()
+ {
+ if ( m_hdc )
+ m_dc.ReleaseHDC(m_hdc);
+ }
+
+ WXHDC GetHDC() const { return m_hdc; }
+
+ private:
+ wxDC& m_dc;
+ WXHDC m_hdc;
+
+ wxDECLARE_NO_ASSIGN_CLASS(TempHDC);
+ };
+
+ // GetTempHDC() also works for wxGCDC (but still not for wxPostScriptDC &c)
+ TempHDC GetTempHDC() { return TempHDC(*this); }
+#endif // __WXMSW__
+
+#if wxUSE_GRAPHICS_CONTEXT
+ virtual wxGraphicsContext* GetGraphicsContext() const
+ {
+ return m_pimpl->GetGraphicsContext();
+ }
+ virtual void SetGraphicsContext( wxGraphicsContext* ctx )
+ {
+ m_pimpl->SetGraphicsContext(ctx);
+ }
+#endif
+
+protected:
+ // ctor takes ownership of the pointer
+ wxDC(wxDCImpl *pimpl) : m_pimpl(pimpl) { }
+
+ wxDCImpl * const m_pimpl;
private:
- DECLARE_NO_COPY_CLASS(wxDCBase);
+ DECLARE_ABSTRACT_CLASS(wxDC)
+ wxDECLARE_NO_COPY_CLASS(wxDC);
};
// ----------------------------------------------------------------------------
-// now include the declaration of wxDC class
+// helper class: you can use it to temporarily change the DC text colour and
+// restore it automatically when the object goes out of scope
// ----------------------------------------------------------------------------
-#if defined(__WXMSW__)
- #include "wx/msw/dc.h"
-#elif defined(__WXMOTIF__)
- #include "wx/motif/dc.h"
-#elif defined(__WXGTK__)
- #include "wx/gtk/dc.h"
-#elif defined(__WXQT__)
- #include "wx/qt/dc.h"
-#elif defined(__WXMAC__)
- #include "wx/mac/dc.h"
-#elif defined(__WXPM__)
- #include "wx/os2/dc.h"
-#elif defined(__WXSTUBS__)
- #include "wx/stubs/dc.h"
-#endif
+class WXDLLIMPEXP_CORE wxDCTextColourChanger
+{
+public:
+ wxDCTextColourChanger(wxDC& dc) : m_dc(dc), m_colFgOld() { }
-#endif
- // _WX_DC_H_BASE_
+ wxDCTextColourChanger(wxDC& dc, const wxColour& col) : m_dc(dc)
+ {
+ Set(col);
+ }
+
+ ~wxDCTextColourChanger()
+ {
+ if ( m_colFgOld.IsOk() )
+ m_dc.SetTextForeground(m_colFgOld);
+ }
+
+ void Set(const wxColour& col)
+ {
+ if ( !m_colFgOld.IsOk() )
+ m_colFgOld = m_dc.GetTextForeground();
+ m_dc.SetTextForeground(col);
+ }
+
+private:
+ wxDC& m_dc;
+
+ wxColour m_colFgOld;
+
+ wxDECLARE_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 WXDLLIMPEXP_CORE wxDCPenChanger
+{
+public:
+ wxDCPenChanger(wxDC& dc, const wxPen& pen) : m_dc(dc), m_penOld(dc.GetPen())
+ {
+ m_dc.SetPen(pen);
+ }
+
+ ~wxDCPenChanger()
+ {
+ if ( m_penOld.IsOk() )
+ m_dc.SetPen(m_penOld);
+ }
+
+private:
+ wxDC& m_dc;
+
+ wxPen m_penOld;
+
+ wxDECLARE_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 WXDLLIMPEXP_CORE wxDCBrushChanger
+{
+public:
+ wxDCBrushChanger(wxDC& dc, const wxBrush& brush) : m_dc(dc), m_brushOld(dc.GetBrush())
+ {
+ m_dc.SetBrush(brush);
+ }
+
+ ~wxDCBrushChanger()
+ {
+ if ( m_brushOld.IsOk() )
+ m_dc.SetBrush(m_brushOld);
+ }
+
+private:
+ wxDC& m_dc;
+
+ wxBrush m_brushOld;
+
+ wxDECLARE_NO_COPY_CLASS(wxDCBrushChanger);
+};
+
+// ----------------------------------------------------------------------------
+// another small helper class: sets the clipping region in its ctor and
+// destroys it in the dtor
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxDCClipper
+{
+public:
+ wxDCClipper(wxDC& dc, const wxRegion& r) : m_dc(dc)
+ { dc.SetClippingRegion(r.GetBox()); }
+ 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)
+ { dc.SetClippingRegion(x, y, w, h); }
+
+ ~wxDCClipper() { m_dc.DestroyClippingRegion(); }
+
+private:
+ wxDC& m_dc;
+
+ wxDECLARE_NO_COPY_CLASS(wxDCClipper);
+};
+
+// ----------------------------------------------------------------------------
+// helper class: you can use it to temporarily change the DC font and
+// restore it automatically when the object goes out of scope
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxDCFontChanger
+{
+public:
+ wxDCFontChanger(wxDC& dc)
+ : m_dc(dc), m_fontOld()
+ {
+ }
+
+ wxDCFontChanger(wxDC& dc, const wxFont& font)
+ : m_dc(dc), m_fontOld(dc.GetFont())
+ {
+ m_dc.SetFont(font);
+ }
+
+ void Set(const wxFont& font)
+ {
+ if ( !m_fontOld.IsOk() )
+ m_fontOld = m_dc.GetFont();
+ m_dc.SetFont(font);
+ }
+
+ ~wxDCFontChanger()
+ {
+ if ( m_fontOld.IsOk() )
+ m_dc.SetFont(m_fontOld);
+ }
+
+private:
+ wxDC& m_dc;
+
+ wxFont m_fontOld;
+
+ wxDECLARE_NO_COPY_CLASS(wxDCFontChanger);
+};
+
+
+#endif // _WX_DC_H_BASE_
projects / wxWidgets.git / blobdiff