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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3190 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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David Webster
171
include/wx/os2/dc.h
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171
include/wx/os2/dc.h
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/////////////////////////////////////////////////////////////////////////////
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// Name: dc.h
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// Purpose: wxDC class
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// Author: Julian Smart
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// Modified by:
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_DC_H_
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#define _WX_DC_H_
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#ifdef __GNUG__
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#pragma interface "dc.h"
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#endif
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class WXDLLEXPORT wxDC : public wxDCBase
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{
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DECLARE_DYNAMIC_CLASS(wxDC)
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public:
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wxDC();
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~wxDC();
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// implement base class pure virtuals
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// ----------------------------------
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virtual void Clear();
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virtual bool StartDoc(const wxString& message);
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virtual void EndDoc();
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virtual void StartPage();
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virtual void EndPage();
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virtual void SetFont(const wxFont& font);
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virtual void SetPen(const wxPen& pen);
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virtual void SetBrush(const wxBrush& brush);
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virtual void SetBackground(const wxBrush& brush);
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virtual void SetBackgroundMode(int mode);
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virtual void SetPalette(const wxPalette& palette);
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virtual void DestroyClippingRegion();
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virtual long GetCharHeight() const;
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virtual long GetCharWidth() const;
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virtual void GetTextExtent(const wxString& string,
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long *x, long *y,
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long *descent = NULL,
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long *externalLeading = NULL,
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wxFont *theFont = NULL) const;
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virtual bool CanDrawBitmap() const;
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virtual bool CanGetTextExtent() const;
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virtual int GetDepth() const;
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virtual wxSize GetPPI() const;
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virtual void SetMapMode(int mode);
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virtual void SetUserScale(double x, double y);
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virtual void SetSystemScale(double x, double y);
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virtual void SetLogicalScale(double x, double y);
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virtual void SetLogicalOrigin(long x, long y);
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virtual void SetDeviceOrigin(long x, long y);
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virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
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virtual void SetLogicalFunction(int function);
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// implementation from now on
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// --------------------------
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virtual void SetRop(WXHDC cdc);
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virtual void DoClipping(WXHDC cdc);
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virtual void SelectOldObjects(WXHDC dc);
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wxWindow *GetWindow() const { return m_canvas; }
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void SetWindow(wxWindow *win) { m_canvas = win; }
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WXHDC GetHDC() const { return m_hDC; }
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void SetHDC(WXHDC dc, bool bOwnsDC = FALSE)
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{
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m_hDC = dc;
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m_bOwnsDC = bOwnsDC;
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}
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protected:
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virtual void DoFloodFill(long x, long y, const wxColour& col,
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int style = wxFLOOD_SURFACE);
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virtual bool DoGetPixel(long x, long y, wxColour *col) const;
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virtual void DoDrawPoint(long x, long y);
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virtual void DoDrawLine(long x1, long y1, long x2, long y2);
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virtual void DoDrawArc(long x1, long y1,
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long x2, long y2,
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long xc, long yc);
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virtual void DoDrawEllipticArc(long x, long y, long w, long h,
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double sa, double ea);
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virtual void DoDrawRectangle(long x, long y, long width, long height);
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virtual void DoDrawRoundedRectangle(long x, long y,
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long width, long height,
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double radius);
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virtual void DoDrawEllipse(long x, long y, long width, long height);
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virtual void DoCrossHair(long x, long y);
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virtual void DoDrawIcon(const wxIcon& icon, long x, long y);
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virtual void DoDrawBitmap(const wxBitmap &bmp, long x, long y,
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bool useMask = FALSE);
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virtual void DoDrawText(const wxString& text, long x, long y);
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virtual bool DoBlit(long xdest, long ydest, long width, long height,
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wxDC *source, long xsrc, long ysrc,
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int rop = wxCOPY, bool useMask = FALSE);
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// this is gnarly - we can't even call this function DoSetClippingRegion()
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// because of virtual function hiding
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virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
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virtual void DoSetClippingRegion(long x, long y,
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long width, long height);
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virtual void DoGetClippingRegion(long *x, long *y,
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long *width, long *height)
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{
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GetClippingBox(x, y, width, height);
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}
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virtual void DoGetSize(int *width, int *height) const;
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virtual void DoGetSizeMM(int* width, int* height) const;
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virtual void DoDrawLines(int n, wxPoint points[],
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long xoffset, long yoffset);
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virtual void DoDrawPolygon(int n, wxPoint points[],
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long xoffset, long yoffset,
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int fillStyle = wxODDEVEN_RULE);
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#if wxUSE_SPLINES
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virtual void DoDrawSpline(wxList *points);
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#endif // wxUSE_SPLINES
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// MSW-specific member variables
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int m_windowExtX;
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int m_windowExtY;
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// the window associated with this DC (may be NULL)
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wxWindow *m_canvas;
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wxBitmap m_selectedBitmap;
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// TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
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bool m_bOwnsDC:1;
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// our HDC and its usage count: we only free it when the usage count drops
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// to 0
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WXHDC m_hDC;
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int m_hDCCount;
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// Store all old GDI objects when do a SelectObject, so we can select them
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// back in (this unselecting user's objects) so we can safely delete the
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// DC.
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WXHBITMAP m_oldBitmap;
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WXHPEN m_oldPen;
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WXHBRUSH m_oldBrush;
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WXHFONT m_oldFont;
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WXHPALETTE m_oldPalette;
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};
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#endif
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// _WX_DC_H_
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