X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/34138703c3997ce676a1e713d9ff9eb020640da7..438959cca892a7651634cc3a7aad4819ac49b23c:/include/wx/bitmap.h diff --git a/include/wx/bitmap.h b/include/wx/bitmap.h index f031e7041a..fc2110755b 100644 --- a/include/wx/bitmap.h +++ b/include/wx/bitmap.h @@ -1,19 +1,314 @@ +/////////////////////////////////////////////////////////////////////////////// +// Name: wx/bitmap.h +// Purpose: wxBitmap class interface +// Author: Vaclav Slavik +// Modified by: +// Created: 22.04.01 +// RCS-ID: $Id$ +// Copyright: (c) wxWidgets team +// Licence: wxWindows licence +/////////////////////////////////////////////////////////////////////////////// + #ifndef _WX_BITMAP_H_BASE_ #define _WX_BITMAP_H_BASE_ +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- + +#include "wx/string.h" +#include "wx/gdicmn.h" // for wxBitmapType +#include "wx/colour.h" +#include "wx/image.h" + +class WXDLLIMPEXP_FWD_CORE wxBitmap; +class WXDLLIMPEXP_FWD_CORE wxBitmapHandler; +class WXDLLIMPEXP_FWD_CORE wxIcon; +class WXDLLIMPEXP_FWD_CORE wxMask; +class WXDLLIMPEXP_FWD_CORE wxPalette; + +// ---------------------------------------------------------------------------- +// wxVariant support +// ---------------------------------------------------------------------------- + +#if wxUSE_VARIANT +#include "wx/variant.h" +DECLARE_VARIANT_OBJECT_EXPORTED(wxBitmap,WXDLLIMPEXP_CORE) +#endif + +// ---------------------------------------------------------------------------- +// wxMask represents the transparent area of the bitmap +// ---------------------------------------------------------------------------- + +// TODO: all implementation of wxMask, except the generic one, +// do not derive from wxMaskBase,,, they should +class WXDLLIMPEXP_CORE wxMaskBase : public wxObject +{ +public: + // create the mask from bitmap pixels of the given colour + bool Create(const wxBitmap& bitmap, const wxColour& colour); + +#if wxUSE_PALETTE + // create the mask from bitmap pixels with the given palette index + bool Create(const wxBitmap& bitmap, int paletteIndex); +#endif // wxUSE_PALETTE + + // create the mask from the given mono bitmap + bool Create(const wxBitmap& bitmap); + +protected: + // this function is called from Create() to free the existing mask data + virtual void FreeData() = 0; + + // these functions must be overridden to implement the corresponding public + // Create() methods, they shouldn't call FreeData() as it's already called + // by the public wrappers + virtual bool InitFromColour(const wxBitmap& bitmap, + const wxColour& colour) = 0; + virtual bool InitFromMonoBitmap(const wxBitmap& bitmap) = 0; +}; + +#if defined(__WXDFB__) || \ + defined(__WXMAC__) || \ + defined(__WXGTK__) || \ + defined(__WXCOCOA__) || \ + defined(__WXMOTIF__) || \ + defined(__WXX11__) + #define wxUSE_BITMAP_BASE 1 +#else + #define wxUSE_BITMAP_BASE 0 +#endif + +// a more readable way to tell +#define wxBITMAP_SCREEN_DEPTH (-1) + + +// ---------------------------------------------------------------------------- +// wxBitmapHelpers: container for various bitmap methods common to all ports. +// ---------------------------------------------------------------------------- + +// Unfortunately, currently wxBitmap does not inherit from wxBitmapBase on all +// platforms and this is not easy to fix. So we extract at least some common +// methods into this class from which both wxBitmapBase (and hence wxBitmap on +// all platforms where it does inherit from it) and wxBitmap in wxMSW and other +// exceptional ports (only wxPM and old wxCocoa) inherit. +class WXDLLIMPEXP_CORE wxBitmapHelpers +{ +public: + // Create a new wxBitmap from the PNG data in the given buffer. + static wxBitmap NewFromPNGData(const void* data, size_t size); +}; + + +// All ports except wxMSW and wxOS2 use wxBitmapHandler and wxBitmapBase as +// base class for wxBitmapHandler; wxMSW and wxOS2 use wxGDIImageHandler as +// base class since it allows some code reuse there. +#if wxUSE_BITMAP_BASE + +// ---------------------------------------------------------------------------- +// wxBitmapHandler: class which knows how to create/load/save bitmaps in +// different formats +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_CORE wxBitmapHandler : public wxObject +{ +public: + wxBitmapHandler() { m_type = wxBITMAP_TYPE_INVALID; } + virtual ~wxBitmapHandler() { } + + // NOTE: the following functions should be pure virtuals, but they aren't + // because otherwise almost all ports would have to implement + // them as "return false"... + + virtual bool Create(wxBitmap *WXUNUSED(bitmap), const void* WXUNUSED(data), + wxBitmapType WXUNUSED(type), int WXUNUSED(width), int WXUNUSED(height), + int WXUNUSED(depth) = 1) + { return false; } + + virtual bool LoadFile(wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), + wxBitmapType WXUNUSED(type), int WXUNUSED(desiredWidth), + int WXUNUSED(desiredHeight)) + { return false; } + + virtual bool SaveFile(const wxBitmap *WXUNUSED(bitmap), const wxString& WXUNUSED(name), + wxBitmapType WXUNUSED(type), const wxPalette *WXUNUSED(palette) = NULL) const + { return false; } + + void SetName(const wxString& name) { m_name = name; } + void SetExtension(const wxString& ext) { m_extension = ext; } + void SetType(wxBitmapType type) { m_type = type; } + const wxString& GetName() const { return m_name; } + const wxString& GetExtension() const { return m_extension; } + wxBitmapType GetType() const { return m_type; } + +private: + wxString m_name; + wxString m_extension; + wxBitmapType m_type; + + DECLARE_ABSTRACT_CLASS(wxBitmapHandler) +}; + +// ---------------------------------------------------------------------------- +// wxBitmap: class which represents platform-dependent bitmap (unlike wxImage) +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_CORE wxBitmapBase : public wxGDIObject, + public wxBitmapHelpers +{ +public: + /* + Derived class must implement these: + + wxBitmap(); + wxBitmap(const wxBitmap& bmp); + wxBitmap(const char bits[], int width, int height, int depth = 1); + wxBitmap(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH); + wxBitmap(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH); + wxBitmap(const char* const* bits); + wxBitmap(const wxString &filename, wxBitmapType type = wxBITMAP_TYPE_XPM); + wxBitmap(const wxImage& image, int depth = wxBITMAP_SCREEN_DEPTH); + + static void InitStandardHandlers(); + */ + + virtual bool Create(int width, int height, int depth = wxBITMAP_SCREEN_DEPTH) = 0; + virtual bool Create(const wxSize& sz, int depth = wxBITMAP_SCREEN_DEPTH) = 0; + + virtual int GetHeight() const = 0; + virtual int GetWidth() const = 0; + virtual int GetDepth() const = 0; + + wxSize GetSize() const + { return wxSize(GetWidth(), GetHeight()); } + +#if wxUSE_IMAGE + virtual wxImage ConvertToImage() const = 0; + + // Convert to disabled (dimmed) bitmap. + wxBitmap ConvertToDisabled(unsigned char brightness = 255) const; +#endif // wxUSE_IMAGE + + virtual wxMask *GetMask() const = 0; + virtual void SetMask(wxMask *mask) = 0; + + virtual wxBitmap GetSubBitmap(const wxRect& rect) const = 0; + + virtual bool SaveFile(const wxString &name, wxBitmapType type, + const wxPalette *palette = NULL) const = 0; + virtual bool LoadFile(const wxString &name, wxBitmapType type) = 0; + + /* + If raw bitmap access is supported (see wx/rawbmp.h), the following + methods should be implemented: + + virtual bool GetRawData(wxRawBitmapData *data) = 0; + virtual void UngetRawData(wxRawBitmapData *data) = 0; + */ + +#if wxUSE_PALETTE + virtual wxPalette *GetPalette() const = 0; + virtual void SetPalette(const wxPalette& palette) = 0; +#endif // wxUSE_PALETTE + + // copies the contents and mask of the given (colour) icon to the bitmap + virtual bool CopyFromIcon(const wxIcon& icon) = 0; + + // implementation: + virtual void SetHeight(int height) = 0; + virtual void SetWidth(int width) = 0; + virtual void SetDepth(int depth) = 0; + + // Format handling + static inline wxList& GetHandlers() { 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, wxBitmapType bitmapType); + static wxBitmapHandler *FindHandler(wxBitmapType bitmapType); + + //static void InitStandardHandlers(); + // (wxBitmap must implement this one) + + static void CleanUpHandlers(); + + // this method is only used by the generic implementation of wxMask + // currently but could be useful elsewhere in the future: it can be + // overridden to quantize the colour to correspond to bitmap colour depth + // if necessary; default implementation simply returns the colour as is + virtual wxColour QuantizeColour(const wxColour& colour) const + { + return colour; + } + +protected: + static wxList sm_handlers; + + DECLARE_ABSTRACT_CLASS(wxBitmapBase) +}; + +#endif // wxUSE_BITMAP_BASE + + +// the wxBITMAP_DEFAULT_TYPE constant defines the default argument value +// for wxBitmap's ctor and wxBitmap::LoadFile() functions. #if defined(__WXMSW__) -#include "wx/msw/bitmap.h" + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_BMP_RESOURCE + #include "wx/msw/bitmap.h" #elif defined(__WXMOTIF__) -#include "wx/motif/bitmap.h" + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_XPM + #include "wx/x11/bitmap.h" +#elif defined(__WXGTK20__) + #ifdef __WINDOWS__ + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_BMP_RESOURCE + #else + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_XPM + #endif + #include "wx/gtk/bitmap.h" #elif defined(__WXGTK__) -#include "wx/gtk/bitmap.h" -#elif defined(__WXQT__) -#include "wx/qt/bitmap.h" + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_XPM + #include "wx/gtk1/bitmap.h" +#elif defined(__WXX11__) + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_XPM + #include "wx/x11/bitmap.h" +#elif defined(__WXDFB__) + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_BMP_RESOURCE + #include "wx/dfb/bitmap.h" #elif defined(__WXMAC__) -#include "wx/mac/bitmap.h" -#elif defined(__WXSTUBS__) -#include "wx/stubs/bitmap.h" + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_PICT_RESOURCE + #include "wx/osx/bitmap.h" +#elif defined(__WXCOCOA__) + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_BMP_RESOURCE + #include "wx/cocoa/bitmap.h" +#elif defined(__WXPM__) + #define wxBITMAP_DEFAULT_TYPE wxBITMAP_TYPE_BMP_RESOURCE + #include "wx/os2/bitmap.h" +#endif + +#if wxUSE_IMAGE +inline +wxBitmap +#if wxUSE_BITMAP_BASE +wxBitmapBase:: +#else +wxBitmap:: #endif +ConvertToDisabled(unsigned char brightness) const +{ + return ConvertToImage().ConvertToDisabled(brightness); +} +#endif // wxUSE_IMAGE +// we must include generic mask.h after wxBitmap definition +#if defined(__WXDFB__) + #define wxUSE_GENERIC_MASK 1 +#else + #define wxUSE_GENERIC_MASK 0 #endif - // _WX_BITMAP_H_BASE_ + +#if wxUSE_GENERIC_MASK + #include "wx/generic/mask.h" +#endif + +#endif // _WX_BITMAP_H_BASE_