fd8bb4662a
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42215 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
374 lines
12 KiB
C++
374 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: dc.h
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// Purpose: wxDC class
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// Author: Stefan Csomor
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// Modified by:
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// Created: 1998-01-01
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// RCS-ID: $Id$
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// Copyright: (c) Stefan Csomor
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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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#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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class wxMacPortStateHelper;
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#if !wxUSE_GRAPHICS_CONTEXT
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class WXDLLEXPORT wxGraphicPath
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{
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public :
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virtual ~wxGraphicPath() {}
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virtual void MoveToPoint( wxCoord x1, wxCoord y1 ) = 0;
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virtual void AddLineToPoint( wxCoord x1, wxCoord y1 ) = 0;
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virtual void AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 ) = 0;
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virtual void AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) = 0;
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virtual void AddCircle( wxCoord x, wxCoord y, wxCoord r ) = 0;
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// draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
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virtual void AddArcToPoint( wxCoord x1, wxCoord y1 , wxCoord x2, wxCoord y2, wxCoord r ) = 0 ;
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virtual void AddArc( wxCoord x, wxCoord y, wxCoord r, double startAngle, double endAngle, bool clockwise ) = 0 ;
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virtual void CloseSubpath() = 0;
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};
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class WXDLLEXPORT wxGraphicContext
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{
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public:
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virtual ~wxGraphicContext() {}
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virtual wxGraphicPath * CreatePath() = 0;
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virtual void PushState() = 0 ;
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virtual void PopState() = 0 ;
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virtual void Clip( const wxRegion ®ion ) = 0;
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virtual void SetPen( const wxPen &pen ) = 0;
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virtual void SetBrush( const wxBrush &brush ) = 0;
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virtual void SetFont( const wxFont &font ) = 0 ;
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virtual void SetTextColor( const wxColour &col ) = 0 ;
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virtual void StrokePath( const wxGraphicPath *path ) = 0;
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virtual void DrawPath( const wxGraphicPath *path, int fillStyle = wxWINDING_RULE ) = 0;
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virtual void FillPath( const wxGraphicPath *path, const wxColor &fillColor, int fillStyle = wxWINDING_RULE ) = 0;
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virtual void DrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, wxCoord w, wxCoord h ) = 0 ;
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virtual void DrawIcon( const wxIcon &icon, wxCoord x, wxCoord y, wxCoord w, wxCoord h ) = 0 ;
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virtual void DrawText( const wxString &str, wxCoord x, wxCoord y, double angle ) = 0 ;
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virtual void GetTextExtent( const wxString &text, wxCoord *width, wxCoord *height,
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wxCoord *descent, wxCoord *externalLeading ) const = 0 ;
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virtual void GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const = 0 ;
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virtual void Translate( wxCoord dx , wxCoord dy ) = 0 ;
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virtual void Scale( wxCoord xScale , wxCoord yScale ) = 0 ;
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};
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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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DECLARE_NO_COPY_CLASS(wxDC)
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public:
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wxDC();
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virtual ~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& 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 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 wxCoord GetCharHeight() const;
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virtual wxCoord GetCharWidth() 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 SetLogicalScale(double x, double y);
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virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
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virtual void SetDeviceOrigin(wxCoord x, wxCoord 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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virtual void SetTextForeground(const wxColour& colour);
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virtual void SetTextBackground(const wxColour& colour);
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virtual void ComputeScaleAndOrigin();
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public:
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wxCoord XDEV2LOG(wxCoord 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 (wxCoord)((double)new_x / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
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else
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return (wxCoord)((double)new_x / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
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}
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wxCoord XDEV2LOGREL(wxCoord x) const
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{
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if (x > 0)
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return (wxCoord)((double)x / m_scaleX + 0.5);
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else
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return (wxCoord)((double)x / m_scaleX - 0.5);
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}
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wxCoord YDEV2LOG(wxCoord 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 (wxCoord)((double)new_y / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
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else
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return (wxCoord)((double)new_y / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
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}
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wxCoord YDEV2LOGREL(wxCoord y) const
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{
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if (y > 0)
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return (wxCoord)((double)y / m_scaleY + 0.5);
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else
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return (wxCoord)((double)y / m_scaleY - 0.5);
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}
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wxCoord XLOG2DEV(wxCoord 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 (wxCoord)((double)new_x * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
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else
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return (wxCoord)((double)new_x * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
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}
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wxCoord XLOG2DEVREL(wxCoord x) const
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{
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if (x > 0)
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return (wxCoord)((double)x * m_scaleX + 0.5);
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else
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return (wxCoord)((double)x * m_scaleX - 0.5);
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}
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wxCoord YLOG2DEV(wxCoord 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 (wxCoord)((double)new_y * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
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else
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return (wxCoord)((double)new_y * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
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}
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wxCoord YLOG2DEVREL(wxCoord y) const
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{
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if (y > 0)
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return (wxCoord)((double)y * m_scaleY + 0.5);
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else
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return (wxCoord)((double)y * m_scaleY - 0.5);
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}
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wxCoord XLOG2DEVMAC(wxCoord 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 (wxCoord)((double)new_x * m_scaleX + 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x;
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else
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return (wxCoord)((double)new_x * m_scaleX - 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x;
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}
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wxCoord YLOG2DEVMAC(wxCoord 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 (wxCoord)((double)new_y * m_scaleY + 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y;
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else
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return (wxCoord)((double)new_y * m_scaleY - 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y;
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}
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#if wxMAC_USE_CORE_GRAPHICS
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wxGraphicsContext* GetGraphicsContext() { return m_graphicContext; }
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#else
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WXHRGN MacGetCurrentClipRgn() { return m_macCurrentClipRgn; }
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static void MacSetupBackgroundForCurrentPort(const wxBrush& background );
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#endif
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protected:
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virtual void DoGetTextExtent(const wxString& string,
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wxCoord *x, wxCoord *y,
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wxCoord *descent = NULL,
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wxCoord *externalLeading = NULL,
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wxFont *theFont = NULL) const;
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virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
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virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
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int style = wxFLOOD_SURFACE);
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virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
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virtual void DoDrawPoint(wxCoord x, wxCoord y);
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#if wxMAC_USE_CORE_GRAPHICS && wxUSE_SPLINES
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virtual void DoDrawSpline(wxList *points);
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#endif
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virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
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virtual void DoDrawArc(wxCoord x1, wxCoord y1,
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wxCoord x2, wxCoord y2,
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wxCoord xc, wxCoord yc);
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virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
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double sa, double ea);
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virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
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virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
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wxCoord width, wxCoord height,
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double radius);
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virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
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virtual void DoCrossHair(wxCoord x, wxCoord y);
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virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
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virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
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bool useMask = false);
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virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
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virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
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double angle);
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virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
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wxDC *source, wxCoord xsrc, wxCoord ysrc,
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int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
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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(wxCoord x, wxCoord y,
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wxCoord width, wxCoord height);
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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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wxCoord xoffset, wxCoord yoffset);
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virtual void DoDrawPolygon(int n, wxPoint points[],
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wxCoord xoffset, wxCoord yoffset,
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int fillStyle = wxODDEVEN_RULE);
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protected:
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// scaling variables
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double m_mm_to_pix_x, m_mm_to_pix_y;
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// To be set using SetDeviceOrigin()
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// by external classes such as wxScrolledWindow
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long m_externalDeviceOriginX, m_externalDeviceOriginY;
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#if !wxMAC_USE_CORE_GRAPHICS
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// If un-scrolled is non-zero or d.o. changes with scrolling.
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// Set using SetInternalDeviceOrigin().
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long m_internalDeviceOriginX, m_internalDeviceOriginY;
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WXHBITMAP m_macMask;
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#endif
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// not yet used
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bool m_needComputeScaleX, m_needComputeScaleY;
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public:
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// implementation
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void MacInstallFont() const;
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// in order to preserve the const inheritance of the virtual functions,
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// we have to use mutable variables starting from CWPro 5
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wxPoint m_macLocalOrigin;
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mutable void *m_macATSUIStyle;
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WXHDC m_macPort;
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#if wxMAC_USE_CORE_GRAPHICS
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wxGraphicsContext *m_graphicContext;
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#else
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void MacInstallPen() const;
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void MacInstallBrush() const;
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void MacSetupPort( wxMacPortStateHelper *ph ) const;
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void MacCleanupPort( wxMacPortStateHelper *ph ) const;
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mutable wxMacPortStateHelper *m_macCurrentPortStateHelper;
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mutable bool m_macFontInstalled;
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mutable bool m_macPenInstalled;
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mutable bool m_macBrushInstalled;
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WXHRGN m_macBoundaryClipRgn;
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WXHRGN m_macCurrentClipRgn;
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mutable bool m_macFormerAliasState;
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mutable short m_macFormerAliasSize;
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mutable bool m_macAliasWasEnabled;
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mutable void *m_macForegroundPixMap;
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mutable void *m_macBackgroundPixMap;
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#endif
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};
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#endif
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#endif // _WX_DC_H_
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