04ab8b6ddf
and thus removed all the duplicated code in all wxDC classes. Problematic is that wxSVGFileDC and wxPostscriptDC inherit from wxDC and therefore include platform specific code (also before this change) so I chose to override all SetLogicalOrigin() etc. methods in these classes and call their wxDCBase methods thereby circumventing the platform dependent code. I'm afraid the Mac code will require updating, too. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@45752 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
378 lines
12 KiB
C++
378 lines
12 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: dc.h
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// Purpose: wxDC class
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// Author: David Webster
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// Modified by:
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// Created: 08/26/99
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// RCS-ID: $Id$
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// Copyright: (c) David Webster
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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/defs.h"
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// ---------------------------------------------------------------------------
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// macros
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// ---------------------------------------------------------------------------
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// Logical to device
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// Absolute
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#define XLOG2DEV(x) (x)
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#define YLOG2DEV(y) (y)
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// Relative
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#define XLOG2DEVREL(x) (x)
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#define YLOG2DEVREL(y) (y)
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// Device to logical
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// Absolute
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#define XDEV2LOG(x) (x)
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#define YDEV2LOG(y) (y)
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// Relative
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#define XDEV2LOGREL(x) (x)
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#define YDEV2LOGREL(y) (y)
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/*
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* Have the same macros as for XView but not for every operation:
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* just for calculating window/viewport extent (a better way of scaling).
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*/
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// Logical to device
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// Absolute
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#define MS_XLOG2DEV(x) LogicalToDevice(x)
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#define MS_YLOG2DEV(y) LogicalToDevice(y)
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// Relative
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#define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x)
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#define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y)
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// Device to logical
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// Absolute
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#define MS_XDEV2LOG(x) DeviceToLogicalX(x)
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#define MS_YDEV2LOG(y) DeviceToLogicalY(y)
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// Relative
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#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
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#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)
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#define YSCALE(y) (yorigin - (y))
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#define wx_round(a) (int)((a)+.5)
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#if wxUSE_DC_CACHEING
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/*
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* Cached blitting, maintaining a cache
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* of bitmaps required for transparent blitting
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* instead of constant creation/deletion
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*/
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class wxDCCacheEntry : public wxObject
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{
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public:
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wxDCCacheEntry( WXHBITMAP hBitmap
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,int nWidth
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,int nHeight
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,int nDepth
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);
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wxDCCacheEntry( HPS hPS
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,int nDepth
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);
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virtual ~wxDCCacheEntry();
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WXHBITMAP m_hBitmap;
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HPS m_hPS;
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int m_nWidth;
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int m_nHeight;
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int m_nDepth;
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}; // end of CLASS wxDCCacheEntry
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#endif
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class WXDLLEXPORT wxDC : public wxDCBase
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{
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DECLARE_DYNAMIC_CLASS(wxDC)
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public:
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wxDC(void);
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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(void);
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virtual bool StartDoc(const wxString& rsMessage);
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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& rFont);
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virtual void SetPen(const wxPen& rPen);
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virtual void SetBrush(const wxBrush& rBrush);
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virtual void SetBackground(const wxBrush& rBrush);
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virtual void SetBackgroundMode(int nMode);
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virtual void SetPalette(const wxPalette& rPalette);
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virtual void DestroyClippingRegion(void);
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virtual wxCoord GetCharHeight(void) const;
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virtual wxCoord GetCharWidth(void) const;
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virtual void DoGetTextExtent( const wxString& rsString
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,wxCoord* pX
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,wxCoord* pY
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,wxCoord* pDescent = NULL
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,wxCoord* pExternalLeading = NULL
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,const wxFont* pTheFont = NULL
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) const;
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virtual bool CanDrawBitmap(void) const;
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virtual bool CanGetTextExtent(void) const;
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virtual int GetDepth(void) const;
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virtual wxSize GetPPI(void) const;
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virtual void SetMapMode(int nMode);
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virtual void SetUserScale( double dX
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,double dY
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);
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virtual void SetLogicalScale( double dX
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,double dY
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);
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virtual void SetLogicalOrigin( wxCoord vX
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,wxCoord vY
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);
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virtual void SetDeviceOrigin( wxCoord vX
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,wxCoord vY
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);
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virtual void SetAxisOrientation( bool bXLeftRight
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,bool bYBottomUp
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);
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virtual void SetLogicalFunction(int nFunction);
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// implementation from now on
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// --------------------------
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virtual void SetRop(WXHDC hCdc);
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virtual void SelectOldObjects(WXHDC hDc);
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wxWindow* GetWindow(void) const { return m_pCanvas; }
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void SetWindow(wxWindow* pWin) { m_pCanvas = pWin; }
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WXHDC GetHDC(void) const { return m_hDC; }
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void SetHDC( WXHDC hDc
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,bool bOwnsDC = FALSE
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)
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{
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m_hDC = hDc;
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m_bOwnsDC = bOwnsDC;
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}
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HPS GetHPS(void) const { return m_hPS; }
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void SetHPS(HPS hPS)
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{
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m_hPS = hPS;
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}
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const wxBitmap& GetSelectedBitmap(void) const { return m_vSelectedBitmap; }
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wxBitmap& GetSelectedBitmap(void) { return m_vSelectedBitmap; }
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void UpdateClipBox();
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#if wxUSE_DC_CACHEING
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static wxDCCacheEntry* FindBitmapInCache( HPS hPS
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,int nWidth
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,int nHeight
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);
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static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis
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,HPS hPS
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);
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static void AddToBitmapCache(wxDCCacheEntry* pEntry);
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static void AddToDCCache(wxDCCacheEntry* pEntry);
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static void ClearCache(void);
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#endif
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protected:
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virtual bool DoFloodFill( wxCoord vX
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,wxCoord vY
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,const wxColour& rCol
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,int nStyle = wxFLOOD_SURFACE
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);
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virtual bool DoGetPixel( wxCoord vX
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,wxCoord vY
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,wxColour* pCol
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) const;
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virtual void DoDrawPoint( wxCoord vX
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,wxCoord vY
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);
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virtual void DoDrawLine( wxCoord vX1
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,wxCoord vY1
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,wxCoord vX2
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,wxCoord vY2
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);
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virtual void DoDrawArc( wxCoord vX1
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,wxCoord vY1
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,wxCoord vX2
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,wxCoord vY2
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,wxCoord vXc
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,wxCoord vYc
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);
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virtual void DoDrawCheckMark( wxCoord vX
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,wxCoord vY
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,wxCoord vWidth
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,wxCoord vHeight
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);
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virtual void DoDrawEllipticArc( wxCoord vX
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,wxCoord vY
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,wxCoord vW
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,wxCoord vH
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,double dSa
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,double dEa
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);
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virtual void DoDrawRectangle( wxCoord vX
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,wxCoord vY
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,wxCoord vWidth
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,wxCoord vHeight
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);
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virtual void DoDrawRoundedRectangle( wxCoord vX
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,wxCoord vY
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,wxCoord vWidth
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,wxCoord vHeight
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,double dRadius
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);
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virtual void DoDrawEllipse( wxCoord vX
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,wxCoord vY
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,wxCoord vWidth
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,wxCoord vHeight
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);
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virtual void DoCrossHair( wxCoord vX
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,wxCoord vY
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);
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virtual void DoDrawIcon( const wxIcon& rIcon
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,wxCoord vX
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,wxCoord vY
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);
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virtual void DoDrawBitmap( const wxBitmap& rBmp
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,wxCoord vX
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,wxCoord vY
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,bool bUseMask = FALSE
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);
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virtual void DoDrawText( const wxString& rsText
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,wxCoord vX
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,wxCoord vY
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);
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virtual void DoDrawRotatedText( const wxString& rsText
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,wxCoord vX
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,wxCoord vY
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,double dAngle
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);
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virtual bool DoBlit( wxCoord vXdest
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,wxCoord vYdest
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,wxCoord vWidth
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,wxCoord vHeight
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,wxDC* pSource
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,wxCoord vXsrc
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,wxCoord vYsrc
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,int nRop = wxCOPY
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,bool bUseMask = FALSE
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,wxCoord vXsrcMask = -1
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,wxCoord vYsrcMask = -1
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);
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virtual void DoSetClippingRegionAsRegion(const wxRegion& rRegion);
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virtual void DoSetClippingRegion( wxCoord vX
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,wxCoord vY
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,wxCoord vWidth
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,wxCoord vHeight
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);
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virtual void DoGetSize( int* pWidth
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,int* pHeight
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) const;
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virtual void DoGetSizeMM( int* pWidth
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,int* pHeight
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) const;
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virtual void DoDrawLines( int n
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,wxPoint vaPoints[]
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,wxCoord vXoffset
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,wxCoord yYoffset
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);
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virtual void DoDrawPolygon( int n
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,wxPoint vaPoints[]
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,wxCoord vXoffset
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,wxCoord vYoffset
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,int nFillStyle = wxODDEVEN_RULE
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);
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#if wxUSE_PALETTE
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void DoSelectPalette(bool bRealize = FALSE);
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void InitializePalette(void);
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#endif // wxUSE_PALETTE
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//
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// common part of DoDrawText() and DoDrawRotatedText()
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//
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void DrawAnyText( const wxString& rsText
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,wxCoord vX
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,wxCoord vY
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);
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// OS2-specific member variables ?? do we even need this under OS/2?
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int m_nWindowExtX;
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int m_nWindowExtY;
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//
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// the window associated with this DC (may be NULL)
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//
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wxWindow* m_pCanvas;
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wxBitmap m_vSelectedBitmap;
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public:
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// PM specific stuff
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HPS m_hPS;
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HPS m_hOldPS; // old hPS, if any
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bool m_bIsPaintTime;// True at Paint Time
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RECTL m_vRclPaint; // Bounding rectangle at Paint time etc.
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//
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// TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
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//
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bool m_bOwnsDC:1;
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//
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// our HDC
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//
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WXHDC m_hDC;
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//
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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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//
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WXHBITMAP m_hOldBitmap;
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WXHPEN m_hOldPen;
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WXHBRUSH m_hOldBrush;
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WXHFONT m_hOldFont;
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WXHPALETTE m_hOldPalette;
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#if wxUSE_DC_CACHEING
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static wxList m_svBitmapCache;
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static wxList m_svDCCache;
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#endif
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}; // end of CLASS wxDC
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#endif
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// _WX_DC_H_
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