Corrected memory.cpp checkpoint bug; added Tex2RTF

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1306 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/tex2rtf/src/readshg.h

@@ -0,0 +1,64 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        readshg.h
+// Purpose:     Petr Smilauer's .SHG (Segmented Hypergraphics file) reading
+//              code.
+//              Note: .SHG is undocumented (anywhere!) so this is
+//              reverse-engineering
+//              and guesswork at its best.
+// Author:      Petr Smilauer
+// Modified by:
+// Created:     01/01/99
+// RCS-ID:      $Id$
+// Copyright:   (c) Petr Smilauer
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef readshgh
+#define readshgh
+
+#include  <stdio.h>
+#include <stdlib.h>
+
+typedef enum { TypePopup = 0xE2, TypeJump = 0xE3, TypeMacro = 0xC8} HotspotType;
+
+#define NOT_VISIBLE  0x04
+
+typedef struct
+{
+  unsigned char   hotspotType;// combines HotspotType /w NOT_VISIBLE if appropriate
+  unsigned char   flag;       // NOT_VISIBLE or 0 ??
+  unsigned char   skip;       // 0, always??
+  unsigned short  left,
+                  top,
+                  width,      // left+width/top+height give right/bottom,
+                  height;     // =>right and bottom edge are not 'included'
+  unsigned char   magic[4];   // wonderful numbers: for macros, this seems
+    // (at least first 2 bytes) to represent offset into macro-strings block.
+} ShgInfoBlock;   // whole block is just 15 bytes long. How weird!
+
+#define OFF_OFFSET    0x20    // this is offset, where WORD (?) lies
+#define OFFSET_DELTA  9       // we must add this to get real offset from file beginning
+
+struct HotSpot
+{
+          HotspotType type;
+          unsigned int left,
+                      top,
+                      right,
+                      bottom;
+          char        szHlpTopic_Macro[65];
+          bool        IsVisible;
+};
+
+// Returns the number of hotspots, and the array of hotspots.
+// E.g.
+// HotSpots *array;
+// int n = ParseSHG("thing.shg", &array);
+
+extern int ParseSHG( const char* fileName, HotSpot **hotspots);
+
+// Converts Windows .SHG file to HTML map file
+extern bool SHGToMap(char *filename, char *defaultFile);
+
+#endif
+