373 lines
13 KiB
C
373 lines
13 KiB
C
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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: 17/09/98
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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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#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, wxColour* col, int style=wxFLOOD_SURFACE ) = 0;
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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, (wxColour*) & col, style);
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}
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virtual bool GetPixel( long x1, long y1, wxColour *col ) const = 0;
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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 ) = 0;
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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 ) = 0;
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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 ) = 0;
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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 ) = 0;
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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 ) = 0;
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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 ) = 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 ) = 0;
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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 ) = 0;
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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 ) = 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 ) = 0;
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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 = 0;
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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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// TODO DrawBitmap is not always the same as DrawIcon, especially if bitmaps and
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// icons are implemented differently.
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void DrawBitmap( const wxBitmap &bmp, long x, long y, bool useMask=FALSE )
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{ DrawIcon( *((wxIcon*)(&bmp)), x, y, useMask ); }
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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 ) = 0;
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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 ) = 0;
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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 = 0;
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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 ) = 0;
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virtual long GetCharWidth(void) = 0;
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virtual long GetCharHeight(void) = 0;
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virtual void Clear(void) = 0;
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virtual void SetFont( const wxFont &font ) = 0;
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virtual wxFont *GetFont(void) const { return (wxFont*) &m_font; };
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virtual void SetPen( const wxPen &pen ) = 0;
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virtual wxPen *GetPen(void) const { return (wxPen*) &m_pen; };
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virtual void SetBrush( const wxBrush &brush ) = 0;
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virtual wxBrush *GetBrush(void) const { return (wxBrush*) &m_brush; };
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virtual void SetBackground( const wxBrush &brush ) = 0;
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virtual wxBrush *GetBackground(void) const { return (wxBrush*) &m_backgroundBrush; };
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virtual void SetLogicalFunction( int function ) = 0;
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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 ) = 0;
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virtual int GetBackgroundMode(void) const { return m_backgroundMode; };
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virtual void SetPalette( const wxPalette& palette ) = 0;
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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( long x, long y, long width, long height );
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virtual void DestroyClippingRegion(void);
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virtual void GetClippingBox( long *x, long *y, long *width, long *height ) 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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virtual void DrawOpenSpline( wxList *points ) = 0;
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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_optimize; // wxMSW only ?
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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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||
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};
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||
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#endif
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// _WX_DC_H_
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