Added ComputeHistogram

[wxWidgets.git] / include / wx / image.h

diff --git a/include/wx/image.h b/include/wx/image.h
index efd5feb55b7ae2c8c7a5eb7bb003655bdde903cf..04c131e040d4350dd0798ece799fe47de03b4a6e 100644 (file)
--- a/include/wx/image.h
+++ b/include/wx/image.h
@@ -4,7 +4,7 @@
 // Author:      Robert Roebling
 // RCS-ID:      $Id$
 // Copyright:   (c) Robert Roebling
 // Author:      Robert Roebling
 // RCS-ID:      $Id$
 // Copyright:   (c) Robert Roebling

-// Licence:    wxWindows licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_IMAGE_H_
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_IMAGE_H_


@@ -18,58 +18,87 @@
 #include "wx/object.h"
 #include "wx/string.h"
 #include "wx/gdicmn.h"
 #include "wx/object.h"
 #include "wx/string.h"
 #include "wx/gdicmn.h"

-#include "wx/stream.h"
+#include "wx/bitmap.h"
+
+#if wxUSE_STREAMS
+#  include "wx/stream.h"
+#endif

 
 //-----------------------------------------------------------------------------
 // classes
 //-----------------------------------------------------------------------------
 
 class WXDLLEXPORT wxImageHandler;
 
 //-----------------------------------------------------------------------------
 // classes
 //-----------------------------------------------------------------------------
 
 class WXDLLEXPORT wxImageHandler;

-#ifdef wxUSE_LIBPNG
+#if wxUSE_LIBPNG

 class WXDLLEXPORT wxPNGHandler;
 #endif
 class WXDLLEXPORT wxPNGHandler;
 #endif

+#if wxUSE_LIBJPEG
+class WXDLLEXPORT wxJPEGHandler;
+#endif
+#if wxUSE_LIBTIFF
+class WXDLLEXPORT wxTIFFHandler;
+#endif

 class WXDLLEXPORT wxBMPHandler;
 class WXDLLEXPORT wxBMPHandler;

+#if wxUSE_GIF
+class WXDLLEXPORT wxGIFHandler;
+#endif
+#if wxUSE_PNM
+class WXDLLEXPORT wxPNMHandler;
+#endif
+#if wxUSE_PCX
+class WXDLLEXPORT wxPCXHandler;
+#endif

 class WXDLLEXPORT wxImage;
 
 class WXDLLEXPORT wxImage;
 

-class WXDLLEXPORT wxBitmap;
-

 //-----------------------------------------------------------------------------
 // wxImageHandler
 //-----------------------------------------------------------------------------
 
 class WXDLLEXPORT wxImageHandler: public wxObject
 {
 //-----------------------------------------------------------------------------
 // wxImageHandler
 //-----------------------------------------------------------------------------
 
 class WXDLLEXPORT wxImageHandler: public wxObject
 {

-  DECLARE_DYNAMIC_CLASS(wxImageHandler)
-  
+  DECLARE_CLASS(wxImageHandler)
+

 public:
   wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
 
 public:
   wxImageHandler() { m_name = ""; m_extension = ""; m_type = 0; }
 

-  virtual bool LoadFile( wxImage *image, wxInputStream& stream );
-  virtual bool SaveFile( wxImage *image, wxOutputStream& stream );
-
-  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() const { return m_name; }
-  inline wxString GetExtension() const { return m_extension; }
-  inline long GetType() const { return m_type; }
+#if wxUSE_STREAMS
+  virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+  virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );

   
   

+  virtual int GetImageCount( wxInputStream& stream );
+
+  bool CanRead( wxInputStream& stream ) { return DoCanRead(stream); }
+  bool CanRead( const wxString& name );
+#endif
+
+  void SetName(const wxString& name) { m_name = name; }
+  void SetExtension(const wxString& ext) { m_extension = ext; }
+  void SetType(long type) { m_type = type; }
+  void SetMimeType(const wxString& type) { m_mime = type; }
+  wxString GetName() const { return m_name; }
+  wxString GetExtension() const { return m_extension; }
+  long GetType() const { return m_type; }
+  wxString GetMimeType() const { return m_mime; }
+

 protected:
 protected:

+  virtual bool DoCanRead( wxInputStream& stream ) = 0;
+

   wxString  m_name;
   wxString  m_extension;
   wxString  m_name;
   wxString  m_extension;

+  wxString  m_mime;

   long      m_type;
   long      m_type;

-  
+

 };
 
 //-----------------------------------------------------------------------------
 // wxPNGHandler
 //-----------------------------------------------------------------------------
 
 };
 
 //-----------------------------------------------------------------------------
 // wxPNGHandler
 //-----------------------------------------------------------------------------
 

-#ifdef wxUSE_LIBPNG
+#if wxUSE_LIBPNG

 class WXDLLEXPORT wxPNGHandler: public wxImageHandler
 {
   DECLARE_DYNAMIC_CLASS(wxPNGHandler)
 class WXDLLEXPORT wxPNGHandler: public wxImageHandler
 {
   DECLARE_DYNAMIC_CLASS(wxPNGHandler)

-  
+

 public:
 
   inline wxPNGHandler()
 public:
 
   inline wxPNGHandler()


@@ -77,10 +106,69 @@ public:
       m_name = "PNG file";
       m_extension = "png";
       m_type = wxBITMAP_TYPE_PNG;
       m_name = "PNG file";
       m_extension = "png";
       m_type = wxBITMAP_TYPE_PNG;

+      m_mime = "image/png";
+  };
+
+#if wxUSE_STREAMS
+  virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+  virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
+  virtual bool DoCanRead( wxInputStream& stream );
+#endif
+};
+#endif
+
+//-----------------------------------------------------------------------------
+// wxJPEGHandler
+//-----------------------------------------------------------------------------
+
+#if wxUSE_LIBJPEG
+class WXDLLEXPORT wxJPEGHandler: public wxImageHandler
+{
+  DECLARE_DYNAMIC_CLASS(wxJPEGHandler)
+
+public:
+
+  inline wxJPEGHandler()
+  {
+      m_name = "JPEG file";
+      m_extension = "jpg";
+      m_type = wxBITMAP_TYPE_JPEG;
+      m_mime = "image/jpeg";
+  };
+
+#if wxUSE_STREAMS
+  virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+  virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
+  virtual bool DoCanRead( wxInputStream& stream );
+#endif
+};
+#endif
+
+//-----------------------------------------------------------------------------
+// wxTIFFHandler
+//-----------------------------------------------------------------------------
+
+#if wxUSE_LIBTIFF
+class WXDLLEXPORT wxTIFFHandler: public wxImageHandler
+{
+  DECLARE_DYNAMIC_CLASS(wxTIFFHandler)
+
+public:
+
+  inline wxTIFFHandler()
+  {
+      m_name = "TIFF file";
+      m_extension = "tif";
+      m_type = wxBITMAP_TYPE_TIF;
+      m_mime = "image/tiff";

   };
 
   };
 

-  virtual bool LoadFile( wxImage *image, wxInputStream& stream );
-  virtual bool SaveFile( wxImage *image, wxOutputStream& stream );
+#if wxUSE_STREAMS
+  virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+  virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
+  virtual bool DoCanRead( wxInputStream& stream );
+  virtual int GetImageCount( wxInputStream& stream );
+#endif

 };
 #endif
 
 };
 #endif
 


@@ -91,7 +179,7 @@ public:
 class WXDLLEXPORT wxBMPHandler: public wxImageHandler
 {
   DECLARE_DYNAMIC_CLASS(wxBMPHandler)
 class WXDLLEXPORT wxBMPHandler: public wxImageHandler
 {
   DECLARE_DYNAMIC_CLASS(wxBMPHandler)

-  
+

 public:
 
   inline wxBMPHandler()
 public:
 
   inline wxBMPHandler()


@@ -99,15 +187,111 @@ public:
       m_name = "BMP file";
       m_extension = "bmp";
       m_type = wxBITMAP_TYPE_BMP;
       m_name = "BMP file";
       m_extension = "bmp";
       m_type = wxBITMAP_TYPE_BMP;

+      m_mime = "image/bmp";
+  };
+
+#if wxUSE_STREAMS
+  virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+  virtual bool DoCanRead( wxInputStream& stream );
+#endif
+};
+
+//-----------------------------------------------------------------------------
+// wxGIFHandler
+//-----------------------------------------------------------------------------
+
+#if wxUSE_GIF
+
+class WXDLLEXPORT wxGIFHandler : public wxImageHandler
+{
+  DECLARE_DYNAMIC_CLASS(wxGIFHandler)
+
+public:
+
+  inline wxGIFHandler()
+  {
+      m_name = "GIF file";
+      m_extension = "gif";
+      m_type = wxBITMAP_TYPE_GIF;
+      m_mime = "image/gif";
+  };
+
+#if wxUSE_STREAMS
+  virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+  virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
+  virtual bool DoCanRead( wxInputStream& stream );
+#endif
+};
+#endif
+
+//-----------------------------------------------------------------------------
+// wxPNMHandler
+//-----------------------------------------------------------------------------
+
+#if wxUSE_PNM
+class WXDLLEXPORT wxPNMHandler : public wxImageHandler
+{
+  DECLARE_DYNAMIC_CLASS(wxPNMHandler)
+
+public:
+
+  inline wxPNMHandler()
+  {
+      m_name = "PNM file";
+      m_extension = "pnm";
+      m_type = wxBITMAP_TYPE_PNM;
+      m_mime = "image/pnm";
+  };
+
+#if wxUSE_STREAMS
+  virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+  virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
+  virtual bool DoCanRead( wxInputStream& stream );
+#endif
+};
+#endif
+
+//-----------------------------------------------------------------------------
+// wxPCXHandler
+//-----------------------------------------------------------------------------
+
+#if wxUSE_PCX
+class WXDLLEXPORT wxPCXHandler : public wxImageHandler
+{
+  DECLARE_DYNAMIC_CLASS(wxPCXHandler)
+
+public:
+
+  inline wxPCXHandler()
+  {
+      m_name = "PCX file";
+      m_extension = "pcx";
+      m_type = wxBITMAP_TYPE_PCX;
+      m_mime = "image/pcx";

   };
 
   };
 

-  virtual bool LoadFile( wxImage *image, wxInputStream& stream );
+#if wxUSE_STREAMS
+  virtual bool LoadFile( wxImage *image, wxInputStream& stream, bool verbose=TRUE, int index=0 );
+  virtual bool SaveFile( wxImage *image, wxOutputStream& stream, bool verbose=TRUE );
+  virtual bool DoCanRead( wxInputStream& stream );
+#endif // wxUSE_STREAMS

 };
 };

+#endif // wxUSE_PCX

 
 //-----------------------------------------------------------------------------
 // wxImage
 //-----------------------------------------------------------------------------
 
 
 //-----------------------------------------------------------------------------
 // wxImage
 //-----------------------------------------------------------------------------
 

+
+// GRG: Dic/99
+class WXDLLEXPORT wxHNode
+{
+public:
+    unsigned long index;
+    unsigned long value;
+};
+
+

 class WXDLLEXPORT wxImage: public wxObject
 {
   DECLARE_DYNAMIC_CLASS(wxImage)
 class WXDLLEXPORT wxImage: public wxObject
 {
   DECLARE_DYNAMIC_CLASS(wxImage)


@@ -118,31 +302,54 @@ public:
 
   wxImage();
   wxImage( int width, int height );
 
   wxImage();
   wxImage( int width, int height );

-  wxImage( const wxString& name, long type = wxBITMAP_TYPE_PNG );
-  wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_PNG );
-  
+  wxImage( const wxString& name, long type = wxBITMAP_TYPE_ANY );
+  wxImage( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
+  wxImage( const wxString& name, const wxString& mimetype );
+  wxImage( wxInputStream& stream, const wxString& mimetype );
+

   wxImage( const wxImage& image );
   wxImage( const wxImage* image );
   wxImage( const wxImage& image );
   wxImage( const wxImage* image );

-  
-  // these functions get implemented in /src/(platform)/bitmap.cpp 
+
+  // these functions get implemented in /src/(platform)/bitmap.cpp

   wxImage( const wxBitmap &bitmap );
   wxImage( const wxBitmap &bitmap );

+  operator wxBitmap() const { return ConvertToBitmap(); }

   wxBitmap ConvertToBitmap() const;
 
   void Create( int width, int height );
   void Destroy();
   wxBitmap ConvertToBitmap() const;
 
   void Create( int width, int height );
   void Destroy();

-  
-  wxImage Scale( int width, int height );
-  
-  // these routines are slow but safe  
+
+  // return the new image with size width*height
+  wxImage GetSubImage( const wxRect& ) const;
+
+  // return the new image with size width*height
+  wxImage Scale( int width, int height ) const;
+
+  // rescales the image in place
+  void Rescale( int width, int height ) { *this = Scale(width, height); }
+
+  // these routines are slow but safe

   void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
   unsigned char GetRed( int x, int y );
   unsigned char GetGreen( int x, int y );
   unsigned char GetBlue( int x, int y );
   void SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b );
   unsigned char GetRed( int x, int y );
   unsigned char GetGreen( int x, int y );
   unsigned char GetBlue( int x, int y );

-  
-  virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_PNG );
-  virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_PNG );
+
+  static bool CanRead( const wxString& name );
+  virtual bool LoadFile( const wxString& name, long type = wxBITMAP_TYPE_ANY );
+  virtual bool LoadFile( const wxString& name, const wxString& mimetype );
+
+#if wxUSE_STREAMS
+  static bool CanRead( wxInputStream& stream );
+  virtual bool LoadFile( wxInputStream& stream, long type = wxBITMAP_TYPE_ANY );
+  virtual bool LoadFile( wxInputStream& stream, const wxString& mimetype );
+#endif
+

   virtual bool SaveFile( const wxString& name, int type );
   virtual bool SaveFile( const wxString& name, int type );

+  virtual bool SaveFile( const wxString& name, const wxString& mimetype );
+
+#if wxUSE_STREAMS

   virtual bool SaveFile( wxOutputStream& stream, int type );
   virtual bool SaveFile( wxOutputStream& stream, int type );

+  virtual bool SaveFile( wxOutputStream& stream, const wxString& mimetype );
+#endif

 
   bool Ok() const;
   int GetWidth() const;
 
   bool Ok() const;
   int GetWidth() const;


@@ -150,7 +357,7 @@ public:
 
   char unsigned *GetData() const;
   void SetData( char unsigned *data );
 
   char unsigned *GetData() const;
   void SetData( char unsigned *data );

-  
+

   void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
   unsigned char GetMaskRed() const;
   unsigned char GetMaskGreen() const;
   void SetMaskColour( unsigned char r, unsigned char g, unsigned char b );
   unsigned char GetMaskRed() const;
   unsigned char GetMaskGreen() const;


@@ -158,29 +365,42 @@ public:
   void SetMask( bool mask = TRUE );
   bool HasMask() const;
 
   void SetMask( bool mask = TRUE );
   bool HasMask() const;
 

-  inline wxImage& operator = (const wxImage& image)
-    { if (*this == image) return (*this); Ref(image); return *this; }
-  inline bool operator == (const wxImage& image)
+  wxImage& operator = (const wxImage& image)
+  {
+    if ( (*this) != image )
+      Ref(image);
+    return *this;
+  }
+
+  bool operator == (const wxImage& image)

     { return m_refData == image.m_refData; }
     { return m_refData == image.m_refData; }

-  inline bool operator != (const wxImage& image) 
+  bool operator != (const wxImage& image)

     { return m_refData != image.m_refData; }
 
     { return m_refData != image.m_refData; }
 

-  static inline wxList& GetHandlers() { return sm_handlers; }
+  static wxList& GetHandlers() { return sm_handlers; }

   static void AddHandler( wxImageHandler *handler );
   static void InsertHandler( wxImageHandler *handler );
   static bool RemoveHandler( const wxString& name );
   static wxImageHandler *FindHandler( const wxString& name );
   static wxImageHandler *FindHandler( const wxString& extension, long imageType );
   static wxImageHandler *FindHandler( long imageType );
   static void AddHandler( wxImageHandler *handler );
   static void InsertHandler( wxImageHandler *handler );
   static bool RemoveHandler( const wxString& name );
   static wxImageHandler *FindHandler( const wxString& name );
   static wxImageHandler *FindHandler( const wxString& extension, long imageType );
   static wxImageHandler *FindHandler( long imageType );

-  
+  static wxImageHandler *FindHandlerMime( const wxString& mimetype );
+

   static void CleanUpHandlers();
   static void InitStandardHandlers();
 
   static void CleanUpHandlers();
   static void InitStandardHandlers();
 

+  // GRG: Dic/99
+  unsigned long ComputeHistogram( wxHashTable &h );
+
+

 protected:
 
   static wxList sm_handlers;
 protected:
 
   static wxList sm_handlers;

-  
+

 };
 
 };
 

+extern void WXDLLEXPORT wxInitAllImageHandlers();
+

 #endif
   // _WX_IMAGE_H_
 #endif
   // _WX_IMAGE_H_

+