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/////////////////////////////////////////////////////////////////////////////
// Name: wx/cocoa/dc.h
// Purpose: wxDC
// Author: David Elliott
// Modified by:
// Created: 2003/04/01
// Copyright: (c) 2003 David Elliott
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef __WX_COCOA_DC_H__
#define __WX_COCOA_DC_H__
DECLARE_WXCOCOA_OBJC_CLASS(NSAffineTransform);
#include "wx/dc.h"
class WXDLLIMPEXP_FWD_CORE wxCocoaDCImpl;
WX_DECLARE_LIST(wxCocoaDCImpl, wxCocoaDCStack);
//=========================================================================
// wxDC
//=========================================================================
class WXDLLIMPEXP_CORE wxCocoaDCImpl: public wxDCImpl
{
DECLARE_ABSTRACT_CLASS(wxCocoaDCImpl)
wxDECLARE_NO_COPY_CLASS(wxCocoaDCImpl);
//-------------------------------------------------------------------------
// Initialization
//-------------------------------------------------------------------------
public:
wxCocoaDCImpl(wxDC *owner);
virtual ~wxCocoaDCImpl();
//-------------------------------------------------------------------------
// wxCocoa specifics
//-------------------------------------------------------------------------
public:
static void CocoaInitializeTextSystem();
static void CocoaShutdownTextSystem();
static WX_NSTextStorage sm_cocoaNSTextStorage;
static WX_NSLayoutManager sm_cocoaNSLayoutManager;
static WX_NSTextContainer sm_cocoaNSTextContainer;
// Create a simple Wx to Bounds transform (just flip the coordinate system)
static WX_NSAffineTransform CocoaGetWxToBoundsTransform(bool isFlipped, float height);
protected:
// DC stack
static wxCocoaDCStack sm_cocoaDCStack;
virtual bool CocoaLockFocus();
virtual bool CocoaUnlockFocus();
bool CocoaUnwindStackAndTakeFocus();
inline bool CocoaTakeFocus()
{
wxCocoaDCStack::compatibility_iterator node = sm_cocoaDCStack.GetFirst();
if(node && (node->GetData() == this))
return true;
return CocoaUnwindStackAndTakeFocus();
}
void CocoaUnwindStackAndLoseFocus();
// DC flipping/transformation
void CocoaApplyTransformations();
void CocoaUnapplyTransformations();
WX_NSAffineTransform m_cocoaWxToBoundsTransform;
// Get bounds rect (for Clear())
// note: we use void * to mean NSRect * so that we can avoid
// putting NSRect in the headers.
virtual bool CocoaGetBounds(void *rectData);
// Blitting
virtual bool CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
wxRasterOperationMode logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
//-------------------------------------------------------------------------
// Implementation
//-------------------------------------------------------------------------
public:
// implement base class pure virtuals
// ----------------------------------
virtual void Clear();
virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
virtual void EndDoc(void) {}
virtual void StartPage(void) {}
virtual void EndPage(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 SetBackgroundMode(int mode) { m_backgroundMode = mode; }
virtual void SetPalette(const wxPalette& palette);
virtual void DestroyClippingRegion();
virtual wxCoord GetCharHeight() const;
virtual wxCoord GetCharWidth() const;
virtual void DoGetTextExtent(const wxString& string,
wxCoord *x, wxCoord *y,
wxCoord *descent = NULL,
wxCoord *externalLeading = NULL,
const wxFont *theFont = NULL) const;
virtual bool CanDrawBitmap() const;
virtual bool CanGetTextExtent() const;
virtual int GetDepth() const;
virtual wxSize GetPPI() const;
virtual void SetMapMode(wxMappingMode mode);
virtual void SetUserScale(double x, double y);
virtual void SetLogicalScale(double x, double y);
virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
virtual void SetLogicalFunction(wxRasterOperationMode function);
virtual void SetTextForeground(const wxColour& colour) ;
virtual void SetTextBackground(const wxColour& colour) ;
virtual void ComputeScaleAndOrigin();
protected:
virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
wxFloodFillStyle style = wxFLOOD_SURFACE);
virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
virtual void DoDrawPoint(wxCoord x, wxCoord y);
virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
virtual void DoDrawArc(wxCoord x1, wxCoord y1,
wxCoord x2, wxCoord y2,
wxCoord xc, wxCoord yc);
virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
double sa, double ea);
virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
wxCoord width, wxCoord height,
double radius);
virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
virtual void DoCrossHair(wxCoord x, wxCoord y);
virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
bool useMask = false);
virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
double angle);
virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
wxDC *source, wxCoord xsrc, wxCoord ysrc,
int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
// this is gnarly - we can't even call this function DoSetClippingRegion()
// because of virtual function hiding
virtual void DoSetDeviceClippingRegion(const wxRegion& region);
virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
wxCoord width, wxCoord height);
virtual void DoGetSize(int *width, int *height) const;
virtual void DoGetSizeMM(int* width, int* height) const;
virtual void DoDrawLines(int n, const wxPoint points[],
wxCoord xoffset, wxCoord yoffset);
virtual void DoDrawPolygon(int n, const wxPoint points[],
wxCoord xoffset, wxCoord yoffset,
wxPolygonFillMode fillStyle = wxODDEVEN_RULE);
};
#endif // __WX_COCOA_DC_H__
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