c3d434725b
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3278 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
200 lines
7.8 KiB
C++
200 lines
7.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: dc.h
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// Purpose: wxDC class
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// Author: AUTHOR
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// Modified by:
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// Created: ??/??/98
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// RCS-ID: $Id$
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// Copyright: (c) AUTHOR
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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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#include "wx/window.h"
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#include "wx/pen.h"
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#include "wx/brush.h"
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#include "wx/icon.h"
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#include "wx/font.h"
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#include "wx/gdicmn.h"
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//-----------------------------------------------------------------------------
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// constants
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//-----------------------------------------------------------------------------
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#ifndef MM_TEXT
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#define MM_TEXT 0
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#define MM_ISOTROPIC 1
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#define MM_ANISOTROPIC 2
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#define MM_LOMETRIC 3
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#define MM_HIMETRIC 4
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#define MM_TWIPS 5
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#define MM_POINTS 6
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#define MM_METRIC 7
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#endif
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//-----------------------------------------------------------------------------
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// global variables
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//-----------------------------------------------------------------------------
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extern int wxPageNumber;
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//-----------------------------------------------------------------------------
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// wxDC
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//-----------------------------------------------------------------------------
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class WXDLLEXPORT wxDC: public wxDCBase
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{
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DECLARE_ABSTRACT_CLASS(wxDC)
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public:
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wxDC(void);
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~wxDC(void);
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virtual void BeginDrawing(void) { };
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virtual void EndDrawing(void) { };
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//-----------------------------------------------------------------------------
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// Pure virtuals from wxDCBase that need defining
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//-----------------------------------------------------------------------------
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virtual bool CanDrawBitmap(void) const { return TRUE; };
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virtual bool CanGetTextExtent(void) const { return TRUE; };
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virtual int GetDepth(void) const;
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virtual wxSize GetPPI(void) const;
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virtual void GetTextExtent( const wxString& string
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,long* width
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,long* height
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,long* descent = NULL
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,long* externalLeading = NULL
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,wxFont* theFont = NULL
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) const;
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virtual long GetCharWidth(void) const;
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virtual long GetCharHeight(void) const;
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virtual void Clear(void);
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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 SetLogicalFunction(int function);
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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 SetMapMode(int mode);
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virtual void DestroyClippingRegion(void);
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virtual void SetUserScale(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 DoFloodFill( long x
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,long y
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,const wxColour& col
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,int style = wxFLOOD_SURFACE
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);
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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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);
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virtual void DoDrawEllipticArc( long x, long y
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,long w, long h
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,double sa, double ea
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);
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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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);
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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
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,long x, long y
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,bool useMask = FALSE
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);
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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
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,long width, long height
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,wxDC *source
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,long xsrc, long ysrc
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,int rop = wxCOPY, bool useMask = FALSE
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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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);
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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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);
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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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);
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#if wxUSE_SPLINES
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virtual void DoDrawSpline(wxList *points);
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#endif
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//-----------------------------------------------------------------------------
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// Other virtuals from wxDCBase that are overridden here
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//-----------------------------------------------------------------------------
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virtual void SetLogicalScale( double x, double y );
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//-----------------------------------------------------------------------------
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// Our own new stuff
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//-----------------------------------------------------------------------------
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virtual void SetInternalDeviceOrigin( long x, long y );
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virtual void GetInternalDeviceOrigin( long *x, long *y );
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private:
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#if WXWIN_COMPATIBILITY
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// function hiding warning supression
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virtual void GetTextExtent( const wxString& string
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,long* width
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,long* height
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,long* descent = NULL
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,long* externalLeading = NULL
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,wxFont* theFont = NULL
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,bool use16 = FALSE
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) const
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{ wxDCBase::GetTextExtent(string, width, height, descent, externalLeading, theFont, use16); };
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#endif
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protected:
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// ------------------------------------------------------------------------
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// Some additional data we need
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// ------------------------------------------------------------------------
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// Owner canvas and selected in bitmap (if bitmap is GDI object selected)
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wxWindow* m_owner;
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wxBitmap* m_bitmap;
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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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