/////////////////////////////////////////////////////////////////////////////
// Name: dc.h
// Purpose: wxDC class
-// Author: AUTHOR
+// Author: David Webster
// Modified by:
-// Created: ??/??/98
+// Created: 08/26/99
// RCS-ID: $Id$
-// Copyright: (c) AUTHOR
-// Licence: wxWindows licence
+// Copyright: (c) David Webster
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DC_H_
#define _WX_DC_H_
-#ifdef __GNUG__
-#pragma interface "dc.h"
-#endif
+#include "wx/defs.h"
+#include "wx/dc.h"
-#include "wx/window.h"
-#include "wx/pen.h"
-#include "wx/brush.h"
-#include "wx/icon.h"
-#include "wx/font.h"
-#include "wx/gdicmn.h"
-
-//-----------------------------------------------------------------------------
-// constants
-//-----------------------------------------------------------------------------
-
-#ifndef MM_TEXT
-#define MM_TEXT 0
-#define MM_ISOTROPIC 1
-#define MM_ANISOTROPIC 2
-#define MM_LOMETRIC 3
-#define MM_HIMETRIC 4
-#define MM_TWIPS 5
-#define MM_POINTS 6
-#define MM_METRIC 7
-#endif
+// ---------------------------------------------------------------------------
+// macros
+// ---------------------------------------------------------------------------
+
+// Logical to device
+// Absolute
+#define XLOG2DEV(x) (x)
+#define YLOG2DEV(y) (y)
+
+// Relative
+#define XLOG2DEVREL(x) (x)
+#define YLOG2DEVREL(y) (y)
+
+// Device to logical
+// Absolute
+#define XDEV2LOG(x) (x)
+
+#define YDEV2LOG(y) (y)
+
+// Relative
+#define XDEV2LOGREL(x) (x)
+#define YDEV2LOGREL(y) (y)
+
+/*
+ * Have the same macros as for XView but not for every operation:
+ * just for calculating window/viewport extent (a better way of scaling).
+ */
+
+// Logical to device
+// Absolute
+#define MS_XLOG2DEV(x) LogicalToDevice(x)
+
+#define MS_YLOG2DEV(y) LogicalToDevice(y)
-//-----------------------------------------------------------------------------
-// global variables
-//-----------------------------------------------------------------------------
+// Relative
+#define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x)
+#define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y)
-extern int wxPageNumber;
+// Device to logical
+// Absolute
+#define MS_XDEV2LOG(x) DeviceToLogicalX(x)
-//-----------------------------------------------------------------------------
-// wxDC
-//-----------------------------------------------------------------------------
+#define MS_YDEV2LOG(y) DeviceToLogicalY(y)
-class WXDLLEXPORT wxDC: public wxDCBase
+// Relative
+#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
+#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)
+
+#define YSCALE(y) (yorigin - (y))
+
+#define wx_round(a) (int)((a)+.5)
+
+class WXDLLEXPORT wxDC : public wxDCBase
{
- DECLARE_ABSTRACT_CLASS(wxDC)
-
- public:
-
- wxDC(void);
- ~wxDC(void);
-
- virtual void BeginDrawing(void) { };
- virtual void EndDrawing(void) { };
-
-//-----------------------------------------------------------------------------
-// Pure virtuals from wxDCBase that need defining
-//-----------------------------------------------------------------------------
- virtual bool CanDrawBitmap(void) const { return TRUE; };
- virtual bool CanGetTextExtent(void) const { return TRUE; };
- virtual int GetDepth(void) const;
- virtual wxSize GetPPI(void) const;
- virtual void GetTextExtent( const wxString& string
- ,long* width
- ,long* height
- ,long* descent = NULL
- ,long* externalLeading = NULL
- ,wxFont* theFont = NULL
- ) const;
- virtual long GetCharWidth(void) const;
- virtual long GetCharHeight(void) const;
- virtual void Clear(void);
- virtual void SetFont(const wxFont& font);
- virtual void SetPen(const wxPen& pen);
- virtual void SetBrush(const wxBrush& brush);
- virtual void SetBackground(const wxBrush& brush);
- virtual void SetLogicalFunction(int function);
- virtual void SetBackgroundMode(int mode);
- virtual void SetPalette(const wxPalette& palette);
- virtual void SetMapMode(int mode);
- virtual void DestroyClippingRegion(void);
- virtual void SetUserScale(double x, double y);
- virtual void SetLogicalOrigin(long x, long y);
- virtual void SetDeviceOrigin(long x, long y);
- virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
-
- virtual void DoFloodFill( long x
- ,long y
- ,const wxColour& col
- ,int style = wxFLOOD_SURFACE
- );
- virtual bool DoGetPixel(long x, long y, wxColour *col) const;
- virtual void DoDrawPoint(long x, long y);
- virtual void DoDrawLine(long x1, long y1, long x2, long y2);
- virtual void DoDrawArc(long x1, long y1,
- long x2, long y2,
- long xc, long yc
- );
- virtual void DoDrawEllipticArc( long x, long y
- ,long w, long h
- ,double sa, double ea
- );
- virtual void DoDrawRectangle(long x, long y, long width, long height);
- virtual void DoDrawRoundedRectangle( long x, long y
- ,long width, long height
- ,double radius
- );
- virtual void DoDrawEllipse(long x, long y, long width, long height);
- virtual void DoCrossHair(long x, long y);
- virtual void DoDrawIcon(const wxIcon& icon, long x, long y);
- virtual void DoDrawBitmap( const wxBitmap &bmp
- ,long x, long y
- ,bool useMask = FALSE
- );
- virtual void DoDrawText(const wxString& text, long x, long y);
- virtual bool DoBlit( long xdest, long ydest
- ,long width, long height
- ,wxDC *source
- ,long xsrc, long ysrc
- ,int rop = wxCOPY, bool useMask = FALSE
- );
- virtual void DoGetSize(int *width, int *height) const;
- virtual void DoGetSizeMM(int* width, int* height) const;
- virtual void DoDrawLines( int n, wxPoint points[]
- ,long xoffset, long yoffset
- );
- virtual void DoDrawPolygon( int n, wxPoint points[]
- ,long xoffset, long yoffset
- ,int fillStyle = wxODDEVEN_RULE
- );
- virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
- virtual void DoSetClippingRegion( long x, long y
- ,long width, long height
- );
+ DECLARE_DYNAMIC_CLASS(wxDC)
+
+public:
+ wxDC();
+ ~wxDC();
+
+ // implement base class pure virtuals
+ // ----------------------------------
+
+ virtual void Clear();
+
+ virtual bool StartDoc(const wxString& message);
+ virtual void EndDoc();
+
+ virtual void StartPage();
+ virtual void EndPage();
+
+ virtual void SetFont(const wxFont& font);
+ virtual void SetPen(const wxPen& pen);
+ virtual void SetBrush(const wxBrush& brush);
+ virtual void SetBackground(const wxBrush& brush);
+ virtual void SetBackgroundMode(int mode);
+ virtual void SetPalette(const wxPalette& palette);
+
+ virtual void DestroyClippingRegion();
+
+ virtual long GetCharHeight() const;
+ virtual long GetCharWidth() const;
+ virtual void GetTextExtent(const wxString& string,
+ long *x, long *y,
+ long *descent = NULL,
+ long *externalLeading = NULL,
+ wxFont *theFont = NULL) const;
+
+ virtual bool CanDrawBitmap() const;
+ virtual bool CanGetTextExtent() const;
+ virtual int GetDepth() const;
+ virtual wxSize GetPPI() const;
+
+ virtual void SetMapMode(int mode);
+ virtual void SetUserScale(double x, double y);
+ virtual void SetSystemScale(double x, double y);
+ virtual void SetLogicalScale(double x, double y);
+ virtual void SetLogicalOrigin(long x, long y);
+ virtual void SetDeviceOrigin(long x, long y);
+ virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
+ virtual void SetLogicalFunction(int function);
+
+ // implementation from now on
+ // --------------------------
+
+ virtual void SetRop(WXHDC cdc);
+ virtual void DoClipping(WXHDC cdc);
+ virtual void SelectOldObjects(WXHDC dc);
+
+ wxWindow *GetWindow() const { return m_canvas; }
+ void SetWindow(wxWindow *win) { m_canvas = win; }
+
+ WXHDC GetHDC() const { return m_hDC; }
+ void SetHDC(WXHDC dc, bool bOwnsDC = FALSE)
+ {
+ m_hDC = dc;
+ m_bOwnsDC = bOwnsDC;
+ }
+
+protected:
+ virtual void DoFloodFill(long x, long y, const wxColour& col,
+ int style = wxFLOOD_SURFACE);
+
+ virtual bool DoGetPixel(long x, long y, wxColour *col) const;
+
+ virtual void DoDrawPoint(long x, long y);
+ virtual void DoDrawLine(long x1, long y1, long x2, long y2);
+
+ virtual void DoDrawArc(long x1, long y1,
+ long x2, long y2,
+ long xc, long yc);
+ virtual void DoDrawEllipticArc(long x, long y, long w, long h,
+ double sa, double ea);
+
+ virtual void DoDrawRectangle(long x, long y, long width, long height);
+ virtual void DoDrawRoundedRectangle(long x, long y,
+ long width, long height,
+ double radius);
+ virtual void DoDrawEllipse(long x, long y, long width, long height);
+
+ virtual void DoCrossHair(long x, long y);
+
+ virtual void DoDrawIcon(const wxIcon& icon, long x, long y);
+ virtual void DoDrawBitmap(const wxBitmap &bmp, long x, long y,
+ bool useMask = FALSE);
+
+ virtual void DoDrawText(const wxString& text, long x, long y);
+
+ virtual bool DoBlit(long xdest, long ydest, long width, long height,
+ wxDC *source, long xsrc, long ysrc,
+ int rop = wxCOPY, bool useMask = FALSE);
+
+ // this is gnarly - we can't even call this function DoSetClippingRegion()
+ // because of virtual function hiding
+ virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
+ virtual void DoSetClippingRegion(long x, long y,
+ long width, long height);
+ virtual void DoGetClippingRegion(long *x, long *y,
+ long *width, long *height)
+ {
+ GetClippingBox(x, y, width, height);
+ }
+
+ virtual void DoGetSize(int *width, int *height) const;
+ virtual void DoGetSizeMM(int* width, int* height) const;
+
+ virtual void DoDrawLines(int n, wxPoint points[],
+ long xoffset, long yoffset);
+ virtual void DoDrawPolygon(int n, wxPoint points[],
+ long xoffset, long yoffset,
+ int fillStyle = wxODDEVEN_RULE);
+
#if wxUSE_SPLINES
virtual void DoDrawSpline(wxList *points);
-#endif
+#endif // wxUSE_SPLINES
-//-----------------------------------------------------------------------------
-// Other virtuals from wxDCBase that are overridden here
-//-----------------------------------------------------------------------------
-
- virtual void SetLogicalScale( double x, double y );
-
-//-----------------------------------------------------------------------------
-// Our own new stuff
-//-----------------------------------------------------------------------------
- virtual void SetInternalDeviceOrigin( long x, long y );
- virtual void GetInternalDeviceOrigin( long *x, long *y );
-
-private:
-
-#if WXWIN_COMPATIBILITY
- // function hiding warning supression
- virtual void GetTextExtent( const wxString& string
- ,long* width
- ,long* height
- ,long* descent = NULL
- ,long* externalLeading = NULL
- ,wxFont* theFont = NULL
- ,bool use16 = FALSE
- ) const
- { wxDCBase::GetTextExtent(string, width, height, descent, externalLeading, theFont, use16); };
-#endif
+ // OS2-specific member variables
+ int m_windowExtX;
+ int m_windowExtY;
-protected:
+ // the window associated with this DC (may be NULL)
+ wxWindow *m_canvas;
- // ------------------------------------------------------------------------
- // Some additional data we need
- // ------------------------------------------------------------------------
+ wxBitmap m_selectedBitmap;
- // Owner canvas and selected in bitmap (if bitmap is GDI object selected)
- wxWindow* m_owner;
- wxBitmap* m_bitmap;
+ // TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
+ bool m_bOwnsDC:1;
// our HDC and its usage count: we only free it when the usage count drops
// to 0
WXHFONT m_oldFont;
WXHPALETTE m_oldPalette;
};
-
#endif
// _WX_DC_H_
projects / wxWidgets.git / blobdiff