git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5371 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			411 lines
		
	
	
		
			14 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			411 lines
		
	
	
		
			14 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/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 wxObject
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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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    void BeginDrawing(void) {};
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    void EndDrawing(void) {};
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    virtual bool Ok(void) const { return m_ok; };
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    virtual void FloodFill( long x1, long y1, const wxColour& col, int style=wxFLOOD_SURFACE );
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    inline void FloodFill(const wxPoint& pt, const wxColour& col, int style=wxFLOOD_SURFACE)
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    {
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        FloodFill(pt.x, pt.y, col, style);
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    }
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    virtual bool GetPixel( long x1, long y1, wxColour *col ) const ;
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    inline bool GetPixel(const wxPoint& pt, wxColour *col) const
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    {
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        return GetPixel(pt.x, pt.y, col);
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    }
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    virtual void DrawLine( long x1, long y1, long x2, long y2 );
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    inline void DrawLine(const wxPoint& pt1, const wxPoint& pt2)
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    {
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        DrawLine(pt1.x, pt1.y, pt2.x, pt2.y);
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    }
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    virtual void CrossHair( long x, long y );
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    inline void CrossHair(const wxPoint& pt)
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    {
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        CrossHair(pt.x, pt.y);
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    }
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    virtual void DrawArc( long x1, long y1, long x2, long y2, long xc, long yc );
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    inline void DrawArc(const wxPoint& pt1, const wxPoint& pt2, const wxPoint& centre)
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    {
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        DrawArc(pt1.x, pt1.y, pt2.x, pt2.y, centre.x, centre.y);
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    }
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    virtual void DrawEllipticArc( long x, long y, long width, long height, double sa, double ea );
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    virtual void DrawEllipticArc (const wxPoint& pt, const wxSize& sz, double sa, double ea)
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    {
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        DrawEllipticArc(pt.x, pt.y, sz.x, sz.y, sa, ea);
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    }
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    virtual void DrawPoint( long x, long y );
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    virtual void DrawPoint( wxPoint& point );
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    virtual void DrawLines( int n, wxPoint points[], long xoffset = 0, long yoffset = 0 );
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    virtual void DrawLines( wxList *points, long xoffset = 0, long yoffset = 0 );
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    virtual void DrawPolygon( int n, wxPoint points[], long xoffset = 0, long yoffset = 0, 
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                              int fillStyle=wxODDEVEN_RULE );
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    virtual void DrawPolygon( wxList *lines, long xoffset = 0, long yoffset = 0, 
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                              int fillStyle=wxODDEVEN_RULE );
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    virtual void DrawRectangle( long x, long y, long width, long height );
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    inline void DrawRectangle(const wxPoint& pt, const wxSize& sz)
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    {
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        DrawRectangle(pt.x, pt.y, sz.x, sz.y);
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    }
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    inline void DrawRectangle(const wxRect& rect)
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    {
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        DrawRectangle(rect.x, rect.y, rect.width, rect.height);
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    }
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    virtual void DrawRoundedRectangle( long x, long y, long width, long height, double radius = 20.0 );
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    inline void DrawRoundedRectangle(const wxPoint& pt, const wxSize& sz, double radius = 20.0)
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    {
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        DrawRoundedRectangle(pt.x, pt.y, sz.x, sz.y, radius);
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    }
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    inline void DrawRoundedRectangle(const wxRect& rect, double radius = 20.0)
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    {
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        DrawRoundedRectangle(rect.x, rect.y, rect.width, rect.height, radius);
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    }
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    virtual void DrawEllipse( long x, long y, long width, long height );
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    inline void DrawEllipse(const wxPoint& pt, const wxSize& sz)
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    {
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        DrawEllipse(pt.x, pt.y, sz.x, sz.y);
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    }
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    inline void DrawEllipse(const wxRect& rect)
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    {
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        DrawEllipse(rect.x, rect.y, rect.width, rect.height);
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    }
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    virtual void DrawSpline( long x1, long y1, long x2, long y2, long x3, long y3 );
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    virtual void DrawSpline( wxList *points );
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    virtual void DrawSpline( int n, wxPoint points[] );
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    virtual bool CanDrawBitmap(void) const ;
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    virtual void DrawIcon( const wxIcon &icon, long x, long y, bool useMask=FALSE );
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    inline void DrawIcon(const wxIcon& icon, const wxPoint& pt)
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    {
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        DrawIcon(icon, pt.x, pt.y);
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    }
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    void DrawBitmap( const wxBitmap &bmp, long x, long y, bool useMask=FALSE ) ;
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    virtual bool Blit( long xdest, long ydest, long width, long height,
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       wxDC *source, long xsrc, long ysrc, int logical_func = wxCOPY, bool useMask=FALSE );
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    inline bool Blit(const wxPoint& destPt, const wxSize& sz,
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            wxDC *source, const wxPoint& srcPt, int rop = wxCOPY, bool useMask = FALSE)
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    {
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        return Blit(destPt.x, destPt.y, sz.x, sz.y, source, srcPt.x, srcPt.y, rop, useMask);
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    }
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    virtual void DrawText( const wxString &text, long x, long y, bool use16 = FALSE );
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    inline void DrawText(const wxString& text, const wxPoint& pt, bool use16bit = FALSE)
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    {
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        DrawText(text, pt.x, pt.y, use16bit);
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    }
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    virtual bool CanGetTextExtent(void) const ;
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    virtual void GetTextExtent( const wxString &string, long *width, long *height,
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                     long *descent = NULL, long *externalLeading = NULL,
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                     wxFont *theFont = NULL, bool use16 = FALSE ) const ;
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    virtual void GetTextExtent( const wxString &string, int *width, int *height,
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                     int *descent = NULL, int *externalLeading = NULL,
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                     wxFont *theFont = NULL, bool use16 = FALSE ) const 
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    {
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    	long lwidth,lheight,ldescent,lexternal ;
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    	GetTextExtent( string, &lwidth,&lheight,&ldescent,&lexternal,theFont,use16 ) ;
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    	*width = lwidth ;
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    	*height = lheight ;
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    	if (descent) *descent = ldescent ;
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    	if (externalLeading) *externalLeading = lexternal ;
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    }
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    virtual wxCoord GetCharWidth(void) const;
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    virtual wxCoord 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 wxFont& GetFont(void) const { return (wxFont&) m_font; };
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    virtual void SetPen( const wxPen &pen );
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    virtual wxPen& GetPen(void) const { return (wxPen&) m_pen; };
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    virtual void SetBrush( const wxBrush &brush );
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    virtual wxBrush& GetBrush(void) const { return (wxBrush&) m_brush; };
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    virtual void SetBackground( const wxBrush &brush );
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    virtual wxBrush& GetBackground(void) const { return (wxBrush&) m_backgroundBrush; };
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    virtual void SetLogicalFunction( int function );
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    virtual int GetLogicalFunction(void) const { return m_logicalFunction; };
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    virtual void SetTextForeground( const wxColour &col );
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    virtual void SetTextBackground( const wxColour &col );
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    virtual wxColour& GetTextBackground(void) const { return (wxColour&)m_textBackgroundColour; };
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    virtual wxColour& GetTextForeground(void) const { return (wxColour&)m_textForegroundColour; };
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    virtual void SetBackgroundMode( int mode );
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    virtual int GetBackgroundMode(void) const { return m_backgroundMode; };
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    virtual void SetPalette( const wxPalette& palette );
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    void SetColourMap( const wxPalette& palette ) { SetPalette(palette); };
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    // the first two must be overridden and called
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    virtual void SetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height );
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    virtual void SetClippingRegion( const wxRect& rect );
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    virtual void DestroyClippingRegion(void);
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    virtual void GetClippingBox( wxCoord *x, wxCoord *y, wxCoord *width, wxCoord *height ) const;
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    virtual void GetClippingBox( long *x, long *y, long *width, long *height ) const;
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    virtual void GetClippingBox(wxRect& rect) const;
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    virtual inline long MinX(void) const { return m_minX; }
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    virtual inline long MaxX(void) const { return m_maxX; }
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    virtual inline long MinY(void) const { return m_minY; }
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    virtual inline long MaxY(void) const { return m_maxY; }
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    virtual void GetSize( int* width, int* height ) const;
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    inline wxSize GetSize(void) const { int w, h; GetSize(&w, &h); return wxSize(w, h); }
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    virtual void GetSizeMM( long* width, long* height ) const;
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    virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; };
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    virtual void EndDoc(void) {};
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    virtual void StartPage(void) {};
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    virtual void EndPage(void) {};
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    virtual void SetMapMode( int mode );
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    virtual int GetMapMode(void) const { return m_mappingMode; };
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    virtual void SetUserScale( double x, double y );
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    virtual void GetUserScale( double *x, double *y );
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    virtual void SetLogicalScale( double x, double y );
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    virtual void GetLogicalScale( double *x, double *y );
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    virtual void SetLogicalOrigin( long x, long y );
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    virtual void GetLogicalOrigin( long *x, long *y );
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    virtual void SetDeviceOrigin( long x, long y );
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    virtual void GetDeviceOrigin( long *x, long *y );
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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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    virtual void SetAxisOrientation( bool xLeftRight, bool yBottomUp );
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    virtual void SetOptimization( bool WXUNUSED(optimize) ) {};
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    virtual bool GetOptimization(void) { return m_optimize; };
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    virtual long DeviceToLogicalX(long x) const;
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    virtual long DeviceToLogicalY(long y) const;
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    virtual long DeviceToLogicalXRel(long x) const;
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    virtual long DeviceToLogicalYRel(long y) const;
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    virtual long LogicalToDeviceX(long x) const;
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    virtual long LogicalToDeviceY(long y) const;
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    virtual long LogicalToDeviceXRel(long x) const;
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    virtual long LogicalToDeviceYRel(long y) const;
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  public:
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    void CalcBoundingBox( long x, long y );
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    void ComputeScaleAndOrigin(void);
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    long XDEV2LOG(long x) const
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	{
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	  long new_x = x - m_deviceOriginX;
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	  if (new_x > 0) 
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	    return (long)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
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	  else
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	    return (long)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
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	}
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    long XDEV2LOGREL(long x) const
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	{ 
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	  if (x > 0) 
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	    return (long)((double)(x) / m_scaleX + 0.5);
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	  else
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	    return (long)((double)(x) / m_scaleX - 0.5);
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	}
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    long YDEV2LOG(long y) const
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	{
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	  long new_y = y - m_deviceOriginY;
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	  if (new_y > 0)
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	    return (long)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
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	  else
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	    return (long)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
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	}
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    long YDEV2LOGREL(long y) const
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	{ 
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	  if (y > 0)
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	    return (long)((double)(y) / m_scaleY + 0.5);
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	  else
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	    return (long)((double)(y) / m_scaleY - 0.5);
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	}
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    long XLOG2DEV(long x) const
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	{ 
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	  long new_x = x - m_logicalOriginX;
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	  if (new_x > 0)
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	    return (long)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
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	  else
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	    return (long)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
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	}
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    long XLOG2DEVREL(long x) const
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	{ 
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	  if (x > 0)
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	    return (long)((double)(x) * m_scaleX + 0.5);
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	  else
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	    return (long)((double)(x) * m_scaleX - 0.5);
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	}
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    long YLOG2DEV(long y) const
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	{
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	  long new_y = y - m_logicalOriginY;
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	  if (new_y > 0)
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	    return (long)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
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	  else
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	    return (long)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
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	}
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    long YLOG2DEVREL(long y) const
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	{ 
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	  if (y > 0)
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	    return (long)((double)(y) * m_scaleY + 0.5);
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	  else
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	    return (long)((double)(y) * m_scaleY - 0.5);
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	}
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  public:
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    bool         m_ok;
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    bool         m_colour;
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    // not sure, what these mean
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    bool         m_clipping;      // Is clipping on right now ?
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    bool         m_isInteractive; // Is GetPixel possible ?
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    bool         m_autoSetting;   // wxMSW only ?
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    bool         m_dontDelete;    // wxMSW only ?
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    bool         m_optimize;      // wxMSW only ?
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    wxString     m_filename;      // Not sure where this belongs.
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    wxPen        m_pen;
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    wxBrush      m_brush;
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    wxBrush      m_backgroundBrush;
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    wxColour     m_textForegroundColour;
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    wxColour     m_textBackgroundColour;
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    wxFont       m_font;
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    int          m_logicalFunction;
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    int          m_backgroundMode;
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    int          m_textAlignment;    // gone in wxWin 2.0 ?
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    int          m_mappingMode;
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    // not sure what for, but what is a mm on a screen you don't know the size of?
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    double       m_mm_to_pix_x,m_mm_to_pix_y; 
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    long         m_internalDeviceOriginX,m_internalDeviceOriginY;   // If un-scrolled is non-zero or
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								    // d.o. changes with scrolling.
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								    // Set using SetInternalDeviceOrigin().
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    long         m_externalDeviceOriginX,m_externalDeviceOriginY;   // To be set by external classes
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                                                                    // such as wxScrolledWindow
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								    // using SetDeviceOrigin()
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    long         m_deviceOriginX,m_deviceOriginY;                   // Sum of the two above.
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    long         m_logicalOriginX,m_logicalOriginY;                 // User defined.
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    double       m_scaleX,m_scaleY;
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    double       m_logicalScaleX,m_logicalScaleY;
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    double       m_userScaleX,m_userScaleY;
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    long         m_signX,m_signY;
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    bool         m_needComputeScaleX,m_needComputeScaleY;         // not yet used
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    float        m_scaleFactor;  // wxPSDC wants to have this. Will disappear.
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    long         m_clipX1,m_clipY1,m_clipX2,m_clipY2;
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    long         m_minX,m_maxX,m_minY,m_maxY;
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//begin wxmac
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	GrafPtr				m_macPort ;
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	GWorldPtr			m_macMask ;
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	// in order to preserve the const inheritance of the virtual functions, we have to 
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	// use mutable variables starting from CWPro 5
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						|
	void					MacInstallFont() const ;
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						|
	void					MacInstallPen() const ;
 | 
						|
	void					MacInstallBrush() const ;
 | 
						|
	
 | 
						|
	mutable bool	m_macFontInstalled ;
 | 
						|
	mutable bool	m_macPenInstalled ;
 | 
						|
	mutable bool	m_macBrushInstalled ;
 | 
						|
	
 | 
						|
	mutable long	m_macPortId ;
 | 
						|
	GrafPtr				m_macOrigPort ;
 | 
						|
	Rect					m_macClipRect ;
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						|
	Point					m_macLocalOrigin ;
 | 
						|
	
 | 
						|
	void					MacSetupPort() const ;
 | 
						|
	void					MacVerifySetup() const { if ( m_macPortId != m_macCurrentPortId ) MacSetupPort() ; } 
 | 
						|
 | 
						|
	static long m_macCurrentPortId ;
 | 
						|
};
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						|
 | 
						|
#endif
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						|
    // _WX_DC_H_
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