X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/07cf98cb8eb7625eeffc95e407a9fa1ad863b451..f196316400fd247a760b2ef77d5064b4e10e5471:/include/wx/msw/bitmap.h diff --git a/include/wx/msw/bitmap.h b/include/wx/msw/bitmap.h index 5d2d28686f..e0740f8832 100644 --- a/include/wx/msw/bitmap.h +++ b/include/wx/msw/bitmap.h @@ -1,217 +1,287 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: bitmap.h +// Name: wx/msw/bitmap.h // Purpose: wxBitmap class // Author: Julian Smart // Modified by: // Created: 01/02/97 // RCS-ID: $Id$ // Copyright: (c) Julian Smart -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_BITMAP_H_ #define _WX_BITMAP_H_ -#ifdef __GNUG__ -#pragma interface "bitmap.h" -#endif - -#include "wx/gdiobj.h" -#include "wx/gdicmn.h" +#include "wx/msw/gdiimage.h" #include "wx/palette.h" -// Bitmap -class WXDLLEXPORT wxDC; -class WXDLLEXPORT wxControl; -class WXDLLEXPORT wxBitmap; -class WXDLLEXPORT wxBitmapHandler; -class WXDLLEXPORT wxIcon; -class WXDLLEXPORT wxCursor; -class WXDLLEXPORT wxControl; - -// A mask is a mono bitmap used for drawing bitmaps -// transparently. -class WXDLLEXPORT wxMask: public wxObject +class WXDLLIMPEXP_FWD_CORE wxBitmap; +class WXDLLIMPEXP_FWD_CORE wxBitmapHandler; +class WXDLLIMPEXP_FWD_CORE wxBitmapRefData; +class WXDLLIMPEXP_FWD_CORE wxControl; +class WXDLLIMPEXP_FWD_CORE wxCursor; +class WXDLLIMPEXP_FWD_CORE wxDC; +#if wxUSE_WXDIB +class WXDLLIMPEXP_FWD_CORE wxDIB; +#endif +class WXDLLIMPEXP_FWD_CORE wxIcon; +class WXDLLIMPEXP_FWD_CORE wxImage; +class WXDLLIMPEXP_FWD_CORE wxMask; +class WXDLLIMPEXP_FWD_CORE wxPalette; +class WXDLLIMPEXP_FWD_CORE wxPixelDataBase; + +// What kind of transparency should a bitmap copied from an icon or cursor +// have? +enum wxBitmapTransparency { - DECLARE_DYNAMIC_CLASS(wxMask) + wxBitmapTransparency_Auto, // default: copy alpha if the source has it + wxBitmapTransparency_None, // never create alpha + wxBitmapTransparency_Always // always use alpha +}; +// ---------------------------------------------------------------------------- +// wxBitmap: a mono or colour bitmap +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxBitmap : public wxGDIImage +{ public: - wxMask(); + // default ctor creates an invalid bitmap, you must Create() it later + wxBitmap() { } + + // Initialize with raw data + wxBitmap(const char bits[], int width, int height, int depth = 1); + + // Initialize with XPM data + wxBitmap(const char* const* data); +#ifdef wxNEEDS_CHARPP + wxBitmap(char** data) + { + *this = wxBitmap(wx_const_cast(const char* const*, data)); + } +#endif - // Construct a mask from a bitmap and a colour indicating - // the transparent area - wxMask(const wxBitmap& bitmap, const wxColour& colour); + // Load a file or resource + wxBitmap(const wxString& name, wxBitmapType type = wxBITMAP_TYPE_BMP_RESOURCE); - // Construct a mask from a bitmap and a palette index indicating - // the transparent area - wxMask(const wxBitmap& bitmap, int paletteIndex); + // New constructor for generalised creation from data + wxBitmap(const void* data, long type, int width, int height, int depth = 1); - // Construct a mask from a mono bitmap (copies the bitmap). - wxMask(const wxBitmap& bitmap); + // Create a new, uninitialized bitmap of the given size and depth (if it + // is omitted, will create a bitmap compatible with the display) + // + // NB: this ctor will create a DIB for 24 and 32bpp bitmaps, use ctor + // taking a DC argument if you want to force using DDB in this case + wxBitmap(int width, int height, int depth = -1); - ~wxMask(); + // Create a bitmap compatible with the given DC + wxBitmap(int width, int height, const wxDC& dc); - bool Create(const wxBitmap& bitmap, const wxColour& colour); - bool Create(const wxBitmap& bitmap, int paletteIndex); - bool Create(const wxBitmap& bitmap); +#if wxUSE_IMAGE + // Convert from wxImage + wxBitmap(const wxImage& image, int depth = -1) + { (void)CreateFromImage(image, depth); } - // Implementation - inline WXHBITMAP GetMaskBitmap(void) const { return m_maskBitmap; } - inline void SetMaskBitmap(WXHBITMAP bmp) { m_maskBitmap = bmp; } -protected: - WXHBITMAP m_maskBitmap; -}; + // Create a DDB compatible with the given DC from wxImage + wxBitmap(const wxImage& image, const wxDC& dc) + { (void)CreateFromImage(image, dc); } +#endif // wxUSE_IMAGE -class WXDLLEXPORT wxBitmapRefData: public wxGDIRefData -{ - friend class WXDLLEXPORT wxBitmap; - friend class WXDLLEXPORT wxIcon; - friend class WXDLLEXPORT wxCursor; -public: - wxBitmapRefData(); - ~wxBitmapRefData(); + // we must have this, otherwise icons are silently copied into bitmaps using + // the copy ctor but the resulting bitmap is invalid! + wxBitmap(const wxIcon& icon, + wxBitmapTransparency transp = wxBitmapTransparency_Auto) + { + CopyFromIcon(icon, transp); + } -public: - int m_width; - int m_height; - int m_depth; - bool m_ok; - int m_numColors; - wxPalette m_bitmapPalette; - int m_quality; - -#ifdef __WXMSW__ - WXHBITMAP m_hBitmap; - wxDC * m_selectedInto; // So bitmap knows whether it's been selected into - // a device context (for error checking) - wxMask * m_bitmapMask; // Option mask + wxBitmap& operator=(const wxIcon& icon) + { + (void)CopyFromIcon(icon); + + return *this; + } + + wxBitmap& operator=(const wxCursor& cursor) + { + (void)CopyFromCursor(cursor); + + return *this; + } + + virtual ~wxBitmap(); + +#if wxUSE_IMAGE + wxImage ConvertToImage() const; +#endif // wxUSE_IMAGE + + // get the given part of bitmap + wxBitmap GetSubBitmap( const wxRect& rect ) const; + + // copies the contents and mask of the given (colour) icon to the bitmap + bool CopyFromIcon(const wxIcon& icon, + wxBitmapTransparency transp = wxBitmapTransparency_Auto); + + // copies the contents and mask of the given cursor to the bitmap + bool CopyFromCursor(const wxCursor& cursor, + wxBitmapTransparency transp = wxBitmapTransparency_Auto); + +#if wxUSE_WXDIB + // copies from a device independent bitmap + bool CopyFromDIB(const wxDIB& dib); #endif -}; -#define M_BITMAPDATA ((wxBitmapRefData *)m_refData) + virtual bool Create(int width, int height, int depth = -1); + virtual bool Create(int width, int height, const wxDC& dc); + virtual bool Create(const void* data, long type, int width, int height, int depth = 1); + virtual bool LoadFile(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE); + virtual bool SaveFile(const wxString& name, int type, const wxPalette *cmap = NULL); + + wxBitmapRefData *GetBitmapData() const + { return (wxBitmapRefData *)m_refData; } + + // raw bitmap access support functions + void *GetRawData(wxPixelDataBase& data, int bpp); + void UngetRawData(wxPixelDataBase& data); + +#if wxUSE_PALETTE + wxPalette* GetPalette() const; + void SetPalette(const wxPalette& palette); +#endif // wxUSE_PALETTE + + wxMask *GetMask() const; + wxBitmap GetMaskBitmap() const; + void SetMask(wxMask *mask); + + // these functions are internal and shouldn't be used, they risk to + // disappear in the future + bool HasAlpha() const; + void UseAlpha(); + + // implementation only from now on + // ------------------------------- -class WXDLLEXPORT wxBitmapHandler: public wxObject -{ - DECLARE_DYNAMIC_CLASS(wxBitmapHandler) public: - wxBitmapHandler(void) { m_name = ""; m_extension = ""; m_type = 0; }; - - virtual bool Create(wxBitmap *bitmap, void *data, long flags, int width, int height, int depth = 1); - virtual bool LoadFile(wxBitmap *bitmap, const wxString& name, long flags, - int desiredWidth, int desiredHeight); - virtual bool SaveFile(wxBitmap *bitmap, const wxString& name, int type, const wxPalette *palette = NULL); - - inline void SetName(const wxString& name) { m_name = name; } - inline void SetExtension(const wxString& ext) { m_extension = ext; } - inline void SetType(long type) { m_type = type; } - inline wxString GetName(void) const { return m_name; } - inline wxString GetExtension(void) const { return m_extension; } - inline long GetType(void) const { return m_type; } + void SetHBITMAP(WXHBITMAP bmp) { SetHandle((WXHANDLE)bmp); } + WXHBITMAP GetHBITMAP() const { return (WXHBITMAP)GetHandle(); } + +#ifdef __WXDEBUG__ + void SetSelectedInto(wxDC *dc); + wxDC *GetSelectedInto() const; +#endif // __WXDEBUG__ + protected: - wxString m_name; - wxString m_extension; - long m_type; + virtual wxGDIImageRefData *CreateData() const; + virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const; + + // creates an uninitialized bitmap, called from Create()s above + bool DoCreate(int w, int h, int depth, WXHDC hdc); + +#if wxUSE_IMAGE + // creates the bitmap from wxImage, supposed to be called from ctor + bool CreateFromImage(const wxImage& image, int depth); + + // creates a DDB from wxImage, supposed to be called from ctor + bool CreateFromImage(const wxImage& image, const wxDC& dc); + + // common part of the 2 methods above (hdc may be 0) + bool CreateFromImage(const wxImage& image, int depth, WXHDC hdc); +#endif // wxUSE_IMAGE + +private: + // common part of CopyFromIcon/CopyFromCursor for Win32 + bool + CopyFromIconOrCursor(const wxGDIImage& icon, + wxBitmapTransparency transp = wxBitmapTransparency_Auto); + + + DECLARE_DYNAMIC_CLASS(wxBitmap) }; -#define M_BITMAPHANDLERDATA ((wxBitmapRefData *)bitmap->GetRefData()) -class WXDLLEXPORT wxBitmap: public wxGDIObject +// ---------------------------------------------------------------------------- +// wxMask: a mono bitmap used for drawing bitmaps transparently. +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxMask : public wxObject { - DECLARE_DYNAMIC_CLASS(wxBitmap) +public: + wxMask(); - friend class WXDLLEXPORT wxBitmapHandler; + // Copy constructor + wxMask(const wxMask &mask); -public: - wxBitmap(); // Platform-specific - - // Copy constructors - wxBitmap(const wxBitmap& bitmap); - - // Initialize with raw data - wxBitmap(const char bits[], int width, int height, int depth = 1); - - // Initialize with XPM data - wxBitmap(char **data, wxControl *anItem = NULL); - - // Load a file or resource - wxBitmap(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE); - - // New constructor for generalised creation from data - wxBitmap(void *data, long type, int width, int height, int depth = 1); - - // If depth is omitted, will create a bitmap compatible with the display - wxBitmap(int width, int height, int depth = -1); - - // we must have this, otherwise icons are silently copied into bitmaps using - // the copy ctor but the resulting bitmap is invalid! - wxBitmap(const wxIcon& icon); - - ~wxBitmap(); - - virtual bool Create(int width, int height, int depth = -1); - virtual bool Create(void *data, long type, int width, int height, int depth = 1); - virtual bool LoadFile(const wxString& name, long type = wxBITMAP_TYPE_BMP_RESOURCE); - virtual bool SaveFile(const wxString& name, int type, const wxPalette *cmap = NULL); - - inline bool Ok(void) const { return (M_BITMAPDATA && M_BITMAPDATA->m_ok); } - inline int GetWidth(void) const { return (M_BITMAPDATA ? M_BITMAPDATA->m_width : 0); } - inline int GetHeight(void) const { return (M_BITMAPDATA ? M_BITMAPDATA->m_height : 0); } - inline int GetDepth(void) const { return (M_BITMAPDATA ? M_BITMAPDATA->m_depth : 0); } - inline int GetQuality(void) const { return (M_BITMAPDATA ? M_BITMAPDATA->m_quality : 0); } - void SetWidth(int w); - void SetHeight(int h); - void SetDepth(int d); - void SetQuality(int q); - void SetOk(bool isOk); -#if WXWIN_COMPATIBILITY - inline wxPalette *GetColourMap(void) const { return GetPalette(); } - void SetColourMap(wxPalette *cmap) { SetPalette(*cmap); }; -#endif - inline wxPalette* GetPalette(void) const { return (M_BITMAPDATA ? (& M_BITMAPDATA->m_bitmapPalette) : (wxPalette*) NULL); } - void SetPalette(const wxPalette& palette); + // Construct a mask from a bitmap and a colour indicating the transparent + // area + wxMask(const wxBitmap& bitmap, const wxColour& colour); + + // Construct a mask from a bitmap and a palette index indicating the + // transparent area + wxMask(const wxBitmap& bitmap, int paletteIndex); - inline wxMask *GetMask(void) const { return (M_BITMAPDATA ? M_BITMAPDATA->m_bitmapMask : (wxMask*) NULL); } - void SetMask(wxMask *mask) ; + // Construct a mask from a mono bitmap (copies the bitmap). + wxMask(const wxBitmap& bitmap); - inline wxBitmap& operator = (const wxBitmap& bitmap) { if (*this == bitmap) return (*this); Ref(bitmap); return *this; } + // construct a mask from the givne bitmap handle + wxMask(WXHBITMAP hbmp) { m_maskBitmap = hbmp; } - inline bool operator == (const wxBitmap& bitmap) { return m_refData == bitmap.m_refData; } - inline bool operator != (const wxBitmap& bitmap) { return m_refData != bitmap.m_refData; } + virtual ~wxMask(); - // Format handling - static inline wxList& GetHandlers(void) { return sm_handlers; } - static void AddHandler(wxBitmapHandler *handler); - static void InsertHandler(wxBitmapHandler *handler); - static bool RemoveHandler(const wxString& name); - static wxBitmapHandler *FindHandler(const wxString& name); - static wxBitmapHandler *FindHandler(const wxString& extension, long bitmapType); - static wxBitmapHandler *FindHandler(long bitmapType); + bool Create(const wxBitmap& bitmap, const wxColour& colour); + bool Create(const wxBitmap& bitmap, int paletteIndex); + bool Create(const wxBitmap& bitmap); + + // Implementation + WXHBITMAP GetMaskBitmap() const { return m_maskBitmap; } + void SetMaskBitmap(WXHBITMAP bmp) { m_maskBitmap = bmp; } - static void InitStandardHandlers(); - static void CleanUpHandlers(); protected: - static wxList sm_handlers; + WXHBITMAP m_maskBitmap; - // Implementation -public: - void SetHBITMAP(WXHBITMAP bmp); - inline WXHBITMAP GetHBITMAP(void) const { return (M_BITMAPDATA ? M_BITMAPDATA->m_hBitmap : 0); } - inline void SetSelectedInto(wxDC *dc) { if (M_BITMAPDATA) M_BITMAPDATA->m_selectedInto = dc; } - inline wxDC *GetSelectedInto(void) const { return (M_BITMAPDATA ? M_BITMAPDATA->m_selectedInto : (wxDC*) NULL); } - bool FreeResource(bool force = FALSE); - - // Creates a bitmap that matches the device context's depth, from - // an arbitray bitmap. At present, the original bitmap must have an - // associated palette. (TODO: use a default palette if no palette exists.) - // This function is necessary for you to Blit an arbitrary bitmap (which may have - // the wrong depth). wxDC::SelectObject will compare the depth of the bitmap - // with the DC's depth, and create a new bitmap if the depths differ. - // Eventually we should perhaps make this a public API function so that - // an app can efficiently produce bitmaps of the correct depth. - // The Windows solution is to use SetDibBits to blit an arbotrary DIB directly to a DC, but - // this is too Windows-specific, hence this solution of quietly converting the wxBitmap. - // Contributed by Frederic Villeneuve - wxBitmap GetBitmapForDC(wxDC& dc) const; + DECLARE_DYNAMIC_CLASS(wxMask) +}; +// ---------------------------------------------------------------------------- +// wxBitmapHandler is a class which knows how to load/save bitmaps to/from file +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxBitmapHandler : public wxGDIImageHandler +{ +public: + wxBitmapHandler() { } + wxBitmapHandler(const wxString& name, const wxString& ext, long type) + : wxGDIImageHandler(name, ext, type) + { + } + + // keep wxBitmapHandler derived from wxGDIImageHandler compatible with the + // old class which worked only with bitmaps + virtual bool Create(wxBitmap *bitmap, + const void* data, + long flags, + int width, int height, int depth = 1); + virtual bool LoadFile(wxBitmap *bitmap, + const wxString& name, + long flags, + int desiredWidth, int desiredHeight); + virtual bool SaveFile(wxBitmap *bitmap, + const wxString& name, + int type, + const wxPalette *palette = NULL); + + virtual bool Create(wxGDIImage *image, + const void* data, + long flags, + int width, int height, int depth = 1); + virtual bool Load(wxGDIImage *image, + const wxString& name, + long flags, + int desiredWidth, int desiredHeight); + virtual bool Save(wxGDIImage *image, + const wxString& name, + int type); + +private: + DECLARE_DYNAMIC_CLASS(wxBitmapHandler) }; #endif