Add RunScript and implement on all backends. Document and add a very simple unit...

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

diff --git a/include/wx/imaggif.h b/include/wx/imaggif.h
index 7912cf956f1f8f3aea9bc741433c8730c3e867c5..0f306536999c55c33b7d26566097484136bea590 100644 (file)
--- a/include/wx/imaggif.h
+++ b/include/wx/imaggif.h
@@ -1,9 +1,9 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        wx/imaggif.h
 // Purpose:     wxImage GIF handler
 /////////////////////////////////////////////////////////////////////////////
 // Name:        wx/imaggif.h
 // Purpose:     wxImage GIF handler

-// Author:      Vaclav Slavik & Guillermo Rodriguez Garcia
+// Author:      Vaclav Slavik, Guillermo Rodriguez Garcia, Gershon Elber, Troels K

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) Guillermo Rodriguez Garcia
+// Copyright:   (c) 1999-2011 Vaclav Slavik, Guillermo Rodriguez Garcia, Gershon Elber, Troels K

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 


@@ -19,6 +19,12 @@
 
 #if wxUSE_GIF
 
 
 #if wxUSE_GIF
 

+#define wxIMAGE_OPTION_GIF_COMMENT wxT("GifComment")
+
+struct wxRGB;
+struct GifHashTableType;
+class WXDLLIMPEXP_FWD_CORE wxImageArray; // anidecod.h
+

 class WXDLLIMPEXP_CORE wxGIFHandler : public wxImageHandler
 {
 public:
 class WXDLLIMPEXP_CORE wxGIFHandler : public wxImageHandler
 {
 public:


@@ -28,6 +34,7 @@ public:
         m_extension = wxT("gif");
         m_type = wxBITMAP_TYPE_GIF;
         m_mime = wxT("image/gif");
         m_extension = wxT("gif");
         m_type = wxBITMAP_TYPE_GIF;
         m_mime = wxT("image/gif");

+        m_hashTable = NULL;

     }
 
 #if wxUSE_STREAMS
     }
 
 #if wxUSE_STREAMS


@@ -35,10 +42,47 @@ public:
                           bool verbose = true, int index = -1);
     virtual bool SaveFile(wxImage *image, wxOutputStream& stream,
                           bool verbose=true);
                           bool verbose = true, int index = -1);
     virtual bool SaveFile(wxImage *image, wxOutputStream& stream,
                           bool verbose=true);

-    virtual int GetImageCount(wxInputStream& stream);
+
+    // Save animated gif
+    bool SaveAnimation(const wxImageArray& images, wxOutputStream *stream,
+        bool verbose = true, int delayMilliSecs = 1000);
+

 protected:
 protected:

+    virtual int DoGetImageCount(wxInputStream& stream);

     virtual bool DoCanRead(wxInputStream& stream);
     virtual bool DoCanRead(wxInputStream& stream);

+
+    bool DoSaveFile(const wxImage&, wxOutputStream *, bool verbose,
+        bool first, int delayMilliSecs, bool loop,
+        const wxRGB *pal, int palCount,
+        int mask_index);

 #endif // wxUSE_STREAMS
 #endif // wxUSE_STREAMS

+protected:
+
+    // Declarations for saving
+
+    unsigned long m_crntShiftDWord;   /* For bytes decomposition into codes. */
+    int m_pixelCount;
+    struct GifHashTableType *m_hashTable;
+    wxInt16
+      m_EOFCode,     /* The EOF LZ code. */
+      m_clearCode,   /* The CLEAR LZ code. */
+      m_runningCode, /* The next code algorithm can generate. */
+      m_runningBits, /* The number of bits required to represent RunningCode. */
+      m_maxCode1,    /* 1 bigger than max. possible code, in RunningBits bits. */
+      m_crntCode,    /* Current algorithm code. */
+      m_crntShiftState;    /* Number of bits in CrntShiftDWord. */
+    wxUint8 m_LZBuf[256];   /* Compressed input is buffered here. */
+
+    bool InitHashTable();
+    void ClearHashTable();
+    void InsertHashTable(unsigned long key, int code);
+    int  ExistsHashTable(unsigned long key);
+
+#if wxUSE_STREAMS
+    bool CompressOutput(wxOutputStream *, int code);
+    bool SetupCompress(wxOutputStream *, int bpp);
+    bool CompressLine(wxOutputStream *, const wxUint8 *line, int lineLen);
+#endif

 
 private:
     DECLARE_DYNAMIC_CLASS(wxGIFHandler)
 
 private:
     DECLARE_DYNAMIC_CLASS(wxGIFHandler)