/////////////////////////////////////////////////////////////////////////////
// Name: dc.h
// Purpose: wxDC class
-// Author: AUTHOR
+// Author: David Webster
// Modified by:
-// Created: ??/??/98
+// Created: 08/26/99
// RCS-ID: $Id$
-// Copyright: (c) AUTHOR
-// Licence: wxWindows licence
+// Copyright: (c) David Webster
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DC_H_
#define _WX_DC_H_
-#ifdef __GNUG__
-#pragma interface "dc.h"
-#endif
+#include "wx/defs.h"
+#include "wx/dc.h"
-#include "wx/window.h"
-#include "wx/pen.h"
-#include "wx/brush.h"
-#include "wx/icon.h"
-#include "wx/font.h"
-#include "wx/gdicmn.h"
-
-//-----------------------------------------------------------------------------
-// constants
-//-----------------------------------------------------------------------------
-
-#ifndef MM_TEXT
-#define MM_TEXT 0
-#define MM_ISOTROPIC 1
-#define MM_ANISOTROPIC 2
-#define MM_LOMETRIC 3
-#define MM_HIMETRIC 4
-#define MM_TWIPS 5
-#define MM_POINTS 6
-#define MM_METRIC 7
-#endif
+// ---------------------------------------------------------------------------
+// macros
+// ---------------------------------------------------------------------------
+
+// Logical to device
+// Absolute
+#define XLOG2DEV(x) (x)
+#define YLOG2DEV(y) (y)
+
+// Relative
+#define XLOG2DEVREL(x) (x)
+#define YLOG2DEVREL(y) (y)
+
+// Device to logical
+// Absolute
+#define XDEV2LOG(x) (x)
+
+#define YDEV2LOG(y) (y)
+
+// Relative
+#define XDEV2LOGREL(x) (x)
+#define YDEV2LOGREL(y) (y)
+
+/*
+ * Have the same macros as for XView but not for every operation:
+ * just for calculating window/viewport extent (a better way of scaling).
+ */
+
+// Logical to device
+// Absolute
+#define MS_XLOG2DEV(x) LogicalToDevice(x)
-//-----------------------------------------------------------------------------
-// global variables
-//-----------------------------------------------------------------------------
+#define MS_YLOG2DEV(y) LogicalToDevice(y)
-extern int wxPageNumber;
+// Relative
+#define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x)
+#define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y)
-//-----------------------------------------------------------------------------
-// wxDC
-//-----------------------------------------------------------------------------
+// Device to logical
+// Absolute
+#define MS_XDEV2LOG(x) DeviceToLogicalX(x)
-class WXDLLEXPORT wxDC: public wxDCBase
+#define MS_YDEV2LOG(y) DeviceToLogicalY(y)
+
+// Relative
+#define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x)
+#define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y)
+
+#define YSCALE(y) (yorigin - (y))
+
+#define wx_round(a) (int)((a)+.5)
+
+#if wxUSE_DC_CACHEING
+/*
+ * Cached blitting, maintaining a cache
+ * of bitmaps required for transparent blitting
+ * instead of constant creation/deletion
+ */
+
+class wxDCCacheEntry : public wxObject
{
- DECLARE_ABSTRACT_CLASS(wxDC)
-
- public:
-
- wxDC(void);
- ~wxDC(void);
-
- virtual void BeginDrawing(void) { };
- virtual void EndDrawing(void) { };
-
-//-----------------------------------------------------------------------------
-// Pure virtuals from wxDCBase that need defining
-//-----------------------------------------------------------------------------
- virtual bool CanDrawBitmap(void) const { return TRUE; };
- virtual bool CanGetTextExtent(void) const { return TRUE; };
- virtual int GetDepth(void) const;
- virtual wxSize GetPPI(void) const;
- virtual void GetTextExtent( const wxString& string
- ,long* width
- ,long* height
- ,long* descent = NULL
- ,long* externalLeading = NULL
- ,wxFont* theFont = NULL
- ) const;
- virtual long GetCharWidth(void) const;
- virtual long GetCharHeight(void) const;
- virtual void Clear(void);
- virtual void SetFont(const wxFont& font);
- virtual void SetPen(const wxPen& pen);
- virtual void SetBrush(const wxBrush& brush);
- virtual void SetBackground(const wxBrush& brush);
- virtual void SetLogicalFunction(int function);
- virtual void SetBackgroundMode(int mode);
- virtual void SetPalette(const wxPalette& palette);
- virtual void SetMapMode(int mode);
- virtual void DestroyClippingRegion(void);
- virtual void SetUserScale(double x, double y);
- virtual void SetLogicalOrigin(long x, long y);
- virtual void SetDeviceOrigin(long x, long y);
- virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
-
- virtual void DoFloodFill( long x
- ,long y
- ,const wxColour& col
- ,int style = wxFLOOD_SURFACE
- );
- virtual bool DoGetPixel(long x, long y, wxColour *col) const;
- virtual void DoDrawPoint(long x, long y);
- virtual void DoDrawLine(long x1, long y1, long x2, long y2);
- virtual void DoDrawArc(long x1, long y1,
- long x2, long y2,
- long xc, long yc
- );
- virtual void DoDrawEllipticArc( long x, long y
- ,long w, long h
- ,double sa, double ea
- );
- virtual void DoDrawRectangle(long x, long y, long width, long height);
- virtual void DoDrawRoundedRectangle( long x, long y
- ,long width, long height
- ,double radius
- );
- virtual void DoDrawEllipse(long x, long y, long width, long height);
- virtual void DoCrossHair(long x, long y);
- virtual void DoDrawIcon(const wxIcon& icon, long x, long y);
- virtual void DoDrawBitmap( const wxBitmap &bmp
- ,long x, long y
- ,bool useMask = FALSE
- );
- virtual void DoDrawText(const wxString& text, long x, long y);
- virtual bool DoBlit( long xdest, long ydest
- ,long width, long height
- ,wxDC *source
- ,long xsrc, long ysrc
- ,int rop = wxCOPY, bool useMask = FALSE
- );
- virtual void DoGetSize(int *width, int *height) const;
- virtual void DoGetSizeMM(int* width, int* height) const;
- virtual void DoDrawLines( int n, wxPoint points[]
- ,long xoffset, long yoffset
- );
- virtual void DoDrawPolygon( int n, wxPoint points[]
- ,long xoffset, long yoffset
- ,int fillStyle = wxODDEVEN_RULE
- );
- virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
- virtual void DoSetClippingRegion( long x, long y
- ,long width, long height
- );
-#if wxUSE_SPLINES
- virtual void DoDrawSpline(wxList *points);
+public:
+ wxDCCacheEntry( WXHBITMAP hBitmap
+ ,int nWidth
+ ,int nHeight
+ ,int nDepth
+ );
+ wxDCCacheEntry( HPS hPS
+ ,int nDepth
+ );
+ virtual ~wxDCCacheEntry();
+
+ WXHBITMAP m_hBitmap;
+ HPS m_hPS;
+ int m_nWidth;
+ int m_nHeight;
+ int m_nDepth;
+}; // end of CLASS wxDCCacheEntry
#endif
-//-----------------------------------------------------------------------------
-// Other virtuals from wxDCBase that are overridden here
-//-----------------------------------------------------------------------------
+// this is an ABC: use one of the derived classes to create a DC associated
+// with a window, screen, printer and so on
+class WXDLLIMPEXP_CORE wxPMDCImpl : public wxDCImpl
+{
+ DECLARE_DYNAMIC_CLASS(wxDC)
+
+public:
+ wxPMDCImpl(wxDC *owner, WXHDC hDC);
+ virtual ~wxPMDCImpl();
+
+ // implement base class pure virtuals
+ // ----------------------------------
+
+ virtual void Clear(void);
+
+ virtual bool StartDoc(const wxString& rsMessage);
+ virtual void EndDoc(void);
+
+ virtual void StartPage(void);
+ virtual void EndPage(void);
- virtual void SetLogicalScale( double x, double y );
+ virtual void SetFont(const wxFont& rFont);
+ virtual void SetPen(const wxPen& rPen);
+ virtual void SetBrush(const wxBrush& rBrush);
+ virtual void SetBackground(const wxBrush& rBrush);
+ virtual void SetBackgroundMode(int nMode);
+ virtual void SetPalette(const wxPalette& rPalette);
-//-----------------------------------------------------------------------------
-// Our own new stuff
-//-----------------------------------------------------------------------------
- virtual void SetInternalDeviceOrigin( long x, long y );
- virtual void GetInternalDeviceOrigin( long *x, long *y );
+ virtual void DestroyClippingRegion(void);
- virtual void SetRop(WXHDC cdc);
- virtual void DoClipping(WXHDC cdc);
- virtual void SelectOldObjects(WXHDC dc);
+ virtual wxCoord GetCharHeight(void) const;
+ virtual wxCoord GetCharWidth(void) const;
- wxWindow *GetWindow() const { return m_canvas; }
- void SetWindow(wxWindow *win) { m_canvas = win; }
+ virtual bool CanDrawBitmap(void) const;
+ virtual bool CanGetTextExtent(void) const;
+ virtual int GetDepth(void) const;
+ virtual wxSize GetPPI(void) const;
- WXHDC GetHDC() const { return m_hDC; }
- void SetHDC(WXHDC dc, bool bOwnsDC = FALSE)
+ virtual void SetMapMode(int nMode);
+ virtual void SetUserScale( double dX
+ ,double dY
+ );
+ virtual void SetLogicalScale( double dX
+ ,double dY
+ );
+ virtual void SetLogicalOrigin( wxCoord vX
+ ,wxCoord vY
+ );
+ virtual void SetDeviceOrigin( wxCoord vX
+ ,wxCoord vY
+ );
+ virtual void SetAxisOrientation( bool bXLeftRight
+ ,bool bYBottomUp
+ );
+ virtual void SetLogicalFunction(int nFunction);
+
+ // implementation from now on
+ // --------------------------
+
+ virtual void SetRop(WXHDC hCdc);
+ virtual void SelectOldObjects(WXHDC hDc);
+
+ wxWindow* GetWindow(void) const { return m_pCanvas; }
+ void SetWindow(wxWindow* pWin) { m_pCanvas = pWin; }
+
+ WXHDC GetHDC(void) const { return m_hDC; }
+ void SetHDC( WXHDC hDc
+ ,bool bOwnsDC = FALSE
+ )
{
- m_hDC = dc;
+ m_hDC = hDc;
m_bOwnsDC = bOwnsDC;
}
-private:
-
-#if WXWIN_COMPATIBILITY
- // function hiding warning supression
- virtual void GetTextExtent( const wxString& string
- ,long* width
- ,long* height
- ,long* descent = NULL
- ,long* externalLeading = NULL
- ,wxFont* theFont = NULL
- ,bool use16 = FALSE
- ) const
- { wxDCBase::GetTextExtent(string, width, height, descent, externalLeading, theFont, use16); };
+ HPS GetHPS(void) const { return m_hPS; }
+ void SetHPS(HPS hPS)
+ {
+ m_hPS = hPS;
+ }
+ const wxBitmap& GetSelectedBitmap(void) const { return m_vSelectedBitmap; }
+ wxBitmap& GetSelectedBitmap(void) { return m_vSelectedBitmap; }
+
+ void UpdateClipBox();
+
+#if wxUSE_DC_CACHEING
+ static wxDCCacheEntry* FindBitmapInCache( HPS hPS
+ ,int nWidth
+ ,int nHeight
+ );
+ static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis
+ ,HPS hPS
+ );
+
+ static void AddToBitmapCache(wxDCCacheEntry* pEntry);
+ static void AddToDCCache(wxDCCacheEntry* pEntry);
+ static void ClearCache(void);
#endif
protected:
+ void Init()
+ {
+ m_pCanvas = NULL;
+ m_hOldBitmap = 0;
+ m_hOldPen = 0;
+ m_hOldBrush = 0;
+ m_hOldFont = 0;
+#if wxUSE_PALETTE
+ m_hOldPalette = 0;
+#endif // wxUSE_PALETTE
+
+ m_bOwnsDC = false;
+ m_hDC = 0;
+ m_hOldPS = NULL;
+ m_hPS = NULL;
+ m_bIsPaintTime = false; // True at Paint Time
+
+ m_pen.SetColour(*wxBLACK);
+ m_brush.SetColour(*wxWHITE);
+ }
+
+ // create an uninitialized DC: this should be only used by the derived
+ // classes
+ wxPMDCImpl( wxDC *owner ) : wxDCImpl( owner ) { Init(); }
+
+public:
+ virtual void DoGetTextExtent( const wxString& rsString
+ ,wxCoord* pX
+ ,wxCoord* pY
+ ,wxCoord* pDescent = NULL
+ ,wxCoord* pExternalLeading = NULL
+ ,const wxFont* pTheFont = NULL
+ ) const;
+ virtual bool DoFloodFill( wxCoord vX
+ ,wxCoord vY
+ ,const wxColour& rCol
+ ,int nStyle = wxFLOOD_SURFACE
+ );
+
+ virtual bool DoGetPixel( wxCoord vX
+ ,wxCoord vY
+ ,wxColour* pCol
+ ) const;
- // ------------------------------------------------------------------------
- // Some additional data we need
- // ------------------------------------------------------------------------
+ virtual void DoDrawPoint( wxCoord vX
+ ,wxCoord vY
+ );
+ virtual void DoDrawLine( wxCoord vX1
+ ,wxCoord vY1
+ ,wxCoord vX2
+ ,wxCoord vY2
+ );
+
+ virtual void DoDrawArc( wxCoord vX1
+ ,wxCoord vY1
+ ,wxCoord vX2
+ ,wxCoord vY2
+ ,wxCoord vXc
+ ,wxCoord vYc
+ );
+ virtual void DoDrawCheckMark( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ );
+ virtual void DoDrawEllipticArc( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vW
+ ,wxCoord vH
+ ,double dSa
+ ,double dEa
+ );
- // Owner canvas and selected in bitmap (if bitmap is GDI object selected)
- wxWindow* m_canvas;
- wxBitmap m_selectedBitmap;
+ virtual void DoDrawRectangle( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ );
+ virtual void DoDrawRoundedRectangle( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ ,double dRadius
+ );
+ virtual void DoDrawEllipse( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ );
+
+ virtual void DoCrossHair( wxCoord vX
+ ,wxCoord vY
+ );
- // our HDC and its usage count: we only free it when the usage count drops
- // to 0
- WXHDC m_hDC;
- int m_hDCCount;
- bool m_bOwnsDC:1;
+ virtual void DoDrawIcon( const wxIcon& rIcon
+ ,wxCoord vX
+ ,wxCoord vY
+ );
+ virtual void DoDrawBitmap( const wxBitmap& rBmp
+ ,wxCoord vX
+ ,wxCoord vY
+ ,bool bUseMask = FALSE
+ );
+ virtual void DoDrawText( const wxString& rsText
+ ,wxCoord vX
+ ,wxCoord vY
+ );
+ virtual void DoDrawRotatedText( const wxString& rsText
+ ,wxCoord vX
+ ,wxCoord vY
+ ,double dAngle
+ );
+
+ virtual bool DoBlit( wxCoord vXdest
+ ,wxCoord vYdest
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ ,wxDC* pSource
+ ,wxCoord vXsrc
+ ,wxCoord vYsrc
+ ,int nRop = wxCOPY
+ ,bool bUseMask = FALSE
+ ,wxCoord vXsrcMask = -1
+ ,wxCoord vYsrcMask = -1
+ );
+
+ virtual void DoSetClippingRegionAsRegion(const wxRegion& rRegion);
+ virtual void DoSetClippingRegion( wxCoord vX
+ ,wxCoord vY
+ ,wxCoord vWidth
+ ,wxCoord vHeight
+ );
+
+ virtual void DoGetSize( int* pWidth
+ ,int* pHeight
+ ) const;
+ virtual void DoGetSizeMM( int* pWidth
+ ,int* pHeight
+ ) const;
+
+ virtual void DoDrawLines( int n
+ ,wxPoint vaPoints[]
+ ,wxCoord vXoffset
+ ,wxCoord yYoffset
+ );
+ virtual void DoDrawPolygon( int n
+ ,wxPoint vaPoints[]
+ ,wxCoord vXoffset
+ ,wxCoord vYoffset
+ ,int nFillStyle = wxODDEVEN_RULE
+ );
+
+#if wxUSE_PALETTE
+ void DoSelectPalette(bool bRealize = FALSE);
+ void InitializePalette(void);
+#endif // wxUSE_PALETTE
+
+protected:
+ //
+ // common part of DoDrawText() and DoDrawRotatedText()
+ //
+ void DrawAnyText( const wxString& rsText
+ ,wxCoord vX
+ ,wxCoord vY
+ );
+
+ // OS2-specific member variables ?? do we even need this under OS/2?
+ int m_nWindowExtX;
+ int m_nWindowExtY;
+
+ //
+ // the window associated with this DC (may be NULL)
+ //
+ wxWindow* m_pCanvas;
+ wxBitmap m_vSelectedBitmap;
+
+public:
+ // PM specific stuff
+ HPS m_hPS;
+ HPS m_hOldPS; // old hPS, if any
+ bool m_bIsPaintTime;// True at Paint Time
+
+ RECTL m_vRclPaint; // Bounding rectangle at Paint time etc.
+ //
+ // TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it
+ //
+ bool m_bOwnsDC:1;
+
+ //
+ // our HDC
+ //
+ WXHDC m_hDC;
+
+ //
// Store all old GDI objects when do a SelectObject, so we can select them
// back in (this unselecting user's objects) so we can safely delete the
// DC.
- WXHBITMAP m_oldBitmap;
- WXHPEN m_oldPen;
- WXHBRUSH m_oldBrush;
- WXHFONT m_oldFont;
- WXHPALETTE m_oldPalette;
-};
+ //
+ WXHBITMAP m_hOldBitmap;
+ WXHPEN m_hOldPen;
+ WXHBRUSH m_hOldBrush;
+ WXHFONT m_hOldFont;
+ WXHPALETTE m_hOldPalette;
+#if wxUSE_DC_CACHEING
+ static wxList m_svBitmapCache;
+ static wxList m_svDCCache;
+#endif
+}; // end of CLASS wxDC
#endif
// _WX_DC_H_
projects / wxWidgets.git / blobdiff