214 lines
7 KiB
C++
214 lines
7 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/osx/bitmap.h
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// Purpose: wxBitmap 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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// Copyright: (c) Stefan Csomor
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_BITMAP_H_
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#define _WX_BITMAP_H_
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#include "wx/palette.h"
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// Bitmap
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class WXDLLIMPEXP_FWD_CORE wxBitmap;
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class wxBitmapRefData ;
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class WXDLLIMPEXP_FWD_CORE wxBitmapHandler;
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class WXDLLIMPEXP_FWD_CORE wxControl;
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class WXDLLIMPEXP_FWD_CORE wxCursor;
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class WXDLLIMPEXP_FWD_CORE wxDC;
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class WXDLLIMPEXP_FWD_CORE wxIcon;
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class WXDLLIMPEXP_FWD_CORE wxImage;
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class WXDLLIMPEXP_FWD_CORE wxPixelDataBase;
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// A mask is a bitmap used for drawing bitmaps
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// Internally it is stored as a 8 bit deep memory chunk, 0 = black means the source will be drawn
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// 255 = white means the source will not be drawn, no other values will be present
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// 8 bit is chosen only for performance reasons, note also that this is the inverse value range
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// from alpha, where 0 = invisible , 255 = fully drawn
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class WXDLLIMPEXP_CORE wxMask: public wxObject
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{
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DECLARE_DYNAMIC_CLASS(wxMask)
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public:
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wxMask();
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// Copy constructor
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wxMask(const wxMask& mask);
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// Construct a mask from a bitmap and a colour indicating
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// the transparent area
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wxMask(const wxBitmap& bitmap, const wxColour& colour);
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// Construct a mask from a mono bitmap (black meaning show pixels, white meaning transparent)
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wxMask(const wxBitmap& bitmap);
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// implementation helper only : construct a mask from a 32 bit memory buffer
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wxMask(const wxMemoryBuffer& buf, int width , int height , int bytesPerRow ) ;
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virtual ~wxMask();
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bool Create(const wxBitmap& bitmap, const wxColour& colour);
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bool Create(const wxBitmap& bitmap);
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bool Create(const wxMemoryBuffer& buf, int width , int height , int bytesPerRow ) ;
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wxBitmap GetBitmap() const;
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// Implementation below
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void Init() ;
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// a 8 bit depth mask
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void* GetRawAccess() const;
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int GetBytesPerRow() const { return m_bytesPerRow ; }
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// renders/updates native representation when necessary
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void RealizeNative() ;
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WXHBITMAP GetHBITMAP() const ;
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private:
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wxMemoryBuffer m_memBuf ;
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int m_bytesPerRow ;
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int m_width ;
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int m_height ;
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WXHBITMAP m_maskBitmap ;
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};
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class WXDLLIMPEXP_CORE wxBitmap: public wxBitmapBase
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{
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DECLARE_DYNAMIC_CLASS(wxBitmap)
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friend class WXDLLIMPEXP_FWD_CORE wxBitmapHandler;
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public:
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wxBitmap() {} // Platform-specific
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// Initialize with raw data.
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wxBitmap(const char bits[], int width, int height, int depth = 1);
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// Initialize with XPM data
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wxBitmap(const char* const* bits);
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// Load a file or resource
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wxBitmap(const wxString& name, wxBitmapType type = wxBITMAP_DEFAULT_TYPE);
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// Constructor for generalised creation from data
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wxBitmap(const void* data, wxBitmapType type, int width, int height, int depth = 1);
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// creates an bitmap from the native image format
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wxBitmap(CGImageRef image, double scale = 1.0);
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wxBitmap(WX_NSImage image);
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wxBitmap(CGContextRef bitmapcontext);
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// Create a bitmap compatible with the given DC
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wxBitmap(int width, int height, const wxDC& dc);
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// If depth is omitted, will create a bitmap compatible with the display
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wxBitmap(int width, int height, int depth = -1) { (void)Create(width, height, depth); }
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wxBitmap(const wxSize& sz, int depth = -1) { (void)Create(sz, depth); }
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// Convert from wxImage:
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wxBitmap(const wxImage& image, int depth = -1, double scale = 1.0);
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// Convert from wxIcon
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wxBitmap(const wxIcon& icon) { CopyFromIcon(icon); }
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virtual ~wxBitmap() {}
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wxImage ConvertToImage() const;
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// get the given part of bitmap
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wxBitmap GetSubBitmap( const wxRect& rect ) const;
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virtual bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH);
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virtual bool Create(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH)
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{ return Create(sz.GetWidth(), sz.GetHeight(), depth); }
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virtual bool Create(const void* data, wxBitmapType type, int width, int height, int depth = 1);
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bool Create( CGImageRef image, double scale = 1.0 );
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bool Create( WX_NSImage image );
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bool Create( CGContextRef bitmapcontext);
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// Create a bitmap compatible with the given DC, inheriting its magnification factor
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bool Create(int width, int height, const wxDC& dc);
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// Create a bitmap with a scale factor, width and height are multiplied with that factor
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bool CreateScaled(int logwidth, int logheight, int depth, double logicalScale);
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// virtual bool Create( WXHICON icon) ;
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virtual bool LoadFile(const wxString& name, wxBitmapType type = wxBITMAP_DEFAULT_TYPE);
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virtual bool SaveFile(const wxString& name, wxBitmapType type, const wxPalette *cmap = NULL) const;
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wxBitmapRefData *GetBitmapData() const
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{ return (wxBitmapRefData *)m_refData; }
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// copies the contents and mask of the given (colour) icon to the bitmap
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virtual bool CopyFromIcon(const wxIcon& icon);
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int GetWidth() const;
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int GetHeight() const;
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int GetDepth() const;
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void SetWidth(int w);
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void SetHeight(int h);
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void SetDepth(int d);
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void SetOk(bool isOk);
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#if wxUSE_PALETTE
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wxPalette* GetPalette() const;
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void SetPalette(const wxPalette& palette);
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#endif // wxUSE_PALETTE
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wxMask *GetMask() const;
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void SetMask(wxMask *mask) ;
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static void InitStandardHandlers();
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// raw bitmap access support functions, for internal use only
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void *GetRawData(wxPixelDataBase& data, int bpp);
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void UngetRawData(wxPixelDataBase& data);
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// these functions are internal and shouldn't be used, they risk to
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// disappear in the future
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bool HasAlpha() const;
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void UseAlpha();
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// returns the 'native' implementation, a GWorldPtr for the content and one for the mask
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WXHBITMAP GetHBITMAP( WXHBITMAP * mask = NULL ) const;
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// returns a CGImageRef which must released after usage with CGImageRelease
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CGImageRef CreateCGImage() const ;
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#if wxOSX_USE_COCOA
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// returns an autoreleased version of the image
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WX_NSImage GetNSImage() const;
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#endif
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#if wxOSX_USE_IPHONE
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// returns an autoreleased version of the image
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WX_UIImage GetUIImage() const;
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#endif
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// returns a IconRef which must be retained before and released after usage
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IconRef GetIconRef() const;
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// returns a IconRef which must be released after usage
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IconRef CreateIconRef() const;
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// get read only access to the underlying buffer
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void *GetRawAccess() const ;
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// brackets to the underlying OS structure for read/write access
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// makes sure that no cached images will be constructed until terminated
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void *BeginRawAccess() ;
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void EndRawAccess() ;
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double GetScaleFactor() const;
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protected:
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virtual wxGDIRefData *CreateGDIRefData() const;
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virtual wxGDIRefData *CloneGDIRefData(const wxGDIRefData *data) const;
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};
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#endif // _WX_BITMAP_H_
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