Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 295 insertions, 0 deletions

diff --git a/kviewshell/plugins/djvu/libdjvu/DjVuAnno.h b/kviewshell/plugins/djvu/libdjvu/DjVuAnno.h
new file mode 100644
index 00000000..964c6c44
--- /dev/null
+++ b/kviewshell/plugins/djvu/libdjvu/DjVuAnno.h
@@ -0,0 +1,295 @@
+//C-  -*- C++ -*-
+//C- -------------------------------------------------------------------
+//C- DjVuLibre-3.5
+//C- Copyright (c) 2002  Leon Bottou and Yann Le Cun.
+//C- Copyright (c) 2001  AT&T
+//C-
+//C- This software is subject to, and may be distributed under, the
+//C- GNU General Public License, Version 2. The license should have
+//C- accompanied the software or you may obtain a copy of the license
+//C- from the Free Software Foundation at http://www.fsf.org .
+//C-
+//C- This program is distributed in the hope that it will be useful,
+//C- but WITHOUT ANY WARRANTY; without even the implied warranty of
+//C- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//C- GNU General Public License for more details.
+//C- 
+//C- DjVuLibre-3.5 is derived from the DjVu(r) Reference Library
+//C- distributed by Lizardtech Software.  On July 19th 2002, Lizardtech 
+//C- Software authorized us to replace the original DjVu(r) Reference 
+//C- Library notice by the following text (see doc/lizard2002.djvu):
+//C-
+//C-  ------------------------------------------------------------------
+//C- | DjVu (r) Reference Library (v. 3.5)
+//C- | Copyright (c) 1999-2001 LizardTech, Inc. All Rights Reserved.
+//C- | The DjVu Reference Library is protected by U.S. Pat. No.
+//C- | 6,058,214 and patents pending.
+//C- |
+//C- | This software is subject to, and may be distributed under, the
+//C- | GNU General Public License, Version 2. The license should have
+//C- | accompanied the software or you may obtain a copy of the license
+//C- | from the Free Software Foundation at http://www.fsf.org .
+//C- |
+//C- | The computer code originally released by LizardTech under this
+//C- | license and unmodified by other parties is deemed "the LIZARDTECH
+//C- | ORIGINAL CODE."  Subject to any third party intellectual property
+//C- | claims, LizardTech grants recipient a worldwide, royalty-free, 
+//C- | non-exclusive license to make, use, sell, or otherwise dispose of 
+//C- | the LIZARDTECH ORIGINAL CODE or of programs derived from the 
+//C- | LIZARDTECH ORIGINAL CODE in compliance with the terms of the GNU 
+//C- | General Public License.   This grant only confers the right to 
+//C- | infringe patent claims underlying the LIZARDTECH ORIGINAL CODE to 
+//C- | the extent such infringement is reasonably necessary to enable 
+//C- | recipient to make, have made, practice, sell, or otherwise dispose 
+//C- | of the LIZARDTECH ORIGINAL CODE (or portions thereof) and not to 
+//C- | any greater extent that may be necessary to utilize further 
+//C- | modifications or combinations.
+//C- |
+//C- | The LIZARDTECH ORIGINAL CODE is provided "AS IS" WITHOUT WARRANTY
+//C- | OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+//C- | TO ANY WARRANTY OF NON-INFRINGEMENT, OR ANY IMPLIED WARRANTY OF
+//C- | MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+//C- +------------------------------------------------------------------
+// 
+// $Id: DjVuAnno.h,v 1.8 2003/11/07 22:08:20 leonb Exp $
+// $Name: release_3_5_15 $
+
+#ifndef _DJVUANNO_H
+#define _DJVUANNO_H
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+#if NEED_GNUG_PRAGMAS
+# pragma interface
+#endif
+
+
+
+/** @name DjVuAnno.h
+
+    Files #"DjVuAnno.h"# and #"DjVuAnno.cpp"# implement the mechanism for
+    annotating DjVuImages. Annotations are additional instructions for the
+    plugin about how the image should be displayed.  The exact format of
+    annotations is not strictly defined. The only requirement is that they
+    have to be stored as a sequence of chunks inside a #FORM:ANNO#.
+
+    This file implements annotations understood by the DjVu plugins 
+    and encoders.
+
+
+    using: contents of #ANT*# chunks.
+
+    Contents of the #FORM:ANNO# should be passed to \Ref{DjVuAnno::decode}()
+    for parsing, which initializes \Ref{DjVuAnno::ANT} 
+    and fills them with decoded data. 
+    @memo Implements support for DjVuImage annotations
+    @author Andrei Erofeev <eaf@geocities.com>
+    @version
+    #$Id: DjVuAnno.h,v 1.8 2003/11/07 22:08:20 leonb Exp $# */
+//@{
+
+
+#include "GString.h"
+
+#ifdef HAVE_NAMESPACES
+namespace DJVU {
+# ifdef NOT_DEFINED // Just to fool emacs c++ mode
+}
+#endif
+#endif
+
+class GMapArea;
+class ByteStream;
+
+// -------- DJVUANT --------
+
+/** This class contains some trivial annotations of the page or of the
+    document such as page border color, page alignment, initial zoom and
+    display mode, hyperlinks and highlighted areas.  All this information is
+    put inside a textual chunk #ANTa# in pseudo-lisp format. Decoding and
+    encoding are normally done by \Ref{DjVuANT::decode}() and
+    \Ref{DjVuANT::encode}() functions. */
+
+class DjVuANT : public GPEnabled
+{
+protected:
+      /// Constructs an empty annotation object.
+   DjVuANT(void);
+
+public:
+   enum { MODE_UNSPEC=0, MODE_COLOR, MODE_FORE, MODE_BACK, MODE_BW };
+   enum { ZOOM_STRETCH=-4, ZOOM_ONE2ONE=-3, ZOOM_WIDTH=-2,
+	  ZOOM_PAGE=-1, ZOOM_UNSPEC=0 };
+   enum alignment { ALIGN_UNSPEC=0, ALIGN_LEFT, ALIGN_CENTER, ALIGN_RIGHT,
+	  ALIGN_TOP, ALIGN_BOTTOM };
+
+      /// Creates an empty annotation object.
+   static GP<DjVuANT> create(void) { return new DjVuANT; }
+   virtual ~DjVuANT();
+
+      /** Background color. Is in #0x00RRBBGG# format. #0xffffffff# if
+	  there were no background color records in the annotation chunk. */
+   unsigned long int	bg_color;
+      /** Initial zoom. Possible values are:
+	  \begin{description}
+          \item[ZOOM_STRETCH] the image is stretched to the viewport.
+          \item[ZOOM_ONE2ONE] the image is displayed pixel-to-pixel.
+          \item[ZOOM_WIDTH] "Fit width" mode.
+          \item[ZOOM_PAGE] "Fit page" mode.
+          \item[ZOOM_UNSPEC] Annotation does not specify a zoom factor.
+          \end{description} */
+   int		zoom;
+      /** Initial mode. Possible values are:
+	  \begin{description}
+             \item[MODE_COLOR] color mode.
+             \item[MODE_FORE] foreground mode.
+             \item[MODE_BACK] background mode.
+             \item[MODE_BW] black and white mode.
+             \item[MODE_UNSPEC] Annotation does not specify a display mode.
+	     \item[Any positive number] Zoom in \%. Please note that
+                   all constants above are either negative or ZERO. Thus
+                   it's possible to distinguish numerical zoom from those
+                   special cases.
+          \end{description} */
+   int		mode;
+      /** Horizontal page alignment. Possible values are #ALIGN_LEFT#,
+	  #ALIGN_CENTER#, #ALIGN_RIGHT# and #ALIGN_UNSPEC#. */
+   alignment hor_align;
+      /** Vertical page alignment. Possible values are #ALIGN_TOP#,
+	  #ALIGN_CENTER#, #ALIGN_BOTTOM# and #ALIGN_UNSPEC#. */
+   alignment ver_align;
+      /** List of defined map areas. They may be just areas of highlighting
+	  or hyperlink. Please refer to \Ref{GMapArea}, \Ref{GMapRect},
+	  \Ref{GMapPoly} and \Ref{GMapOval} for details. */
+   GPList<GMapArea>	map_areas;
+#ifndef NO_METADATA_IN_ANT_CHUNK
+      /** Metainformations like title, author ... */
+   GMap<GUTF8String,GUTF8String> metadata;
+#endif
+      /** Returns TRUE if no features are specified or specified features
+	  are not different from default ones */
+   bool		is_empty(void) const;
+
+      /** Decodes contents of annotation chunk #ANTa#. The chunk data is
+	  read from ByteStream #bs# until reaching an end-of-stream marker.
+	  This function is normally called after a call to
+	  \Ref{IFFByteStream::get_chunk}(). */
+   void	decode(ByteStream &bs);
+
+      /** Same as \Ref{decode}() but adds the new data to what has
+	  been decoded before. */
+   void merge(ByteStream & bs);
+
+      /** Encodes the #ANTa# chunk. The annotation data is simply written
+	  into ByteStream #bs# with no IFF header. This function is normally
+	  called after a call to \Ref{IFFByteStream::put_chunk}(). */
+   void encode(ByteStream &bs);
+
+      /// Encodes data back into raw annotation data.
+   GUTF8String encode_raw(void) const;
+
+      /// Returns a copy of this object
+   GP<DjVuANT>	copy(void) const;
+   
+      /** Returns the number of bytes needed by this data structure. It's
+	  used by caching routines to estimate the size of a \Ref{DjVuImage}. */
+   unsigned int get_memory_usage() const;
+
+      /// Converts color from string in \#RRGGBB notation to an unsigned integer
+   static unsigned long int	cvt_color(const char * color, unsigned long int def);
+      /// Obtain the <MAP></MAP> tag for these annotations.
+   GUTF8String get_xmlmap(const GUTF8String &name, const int height) const;
+      /// Write the <MAP></MAP> tag for these annotations.
+   void writeMap(
+     ByteStream &bs,const GUTF8String &name, const int height) const;
+      /// Obtain the XML flags for the default specifications.
+   GUTF8String get_paramtags(void) const;
+      /// Write the XML flags for the default specifications.
+   void writeParam(ByteStream &out_str) const;
+private:
+   void	decode(class GLParser & parser);
+   static GUTF8String read_raw(ByteStream & str);
+   static unsigned char	decode_comp(char ch1, char ch2);
+   static unsigned long int get_bg_color(class GLParser & parser);
+   static int get_zoom(class GLParser & parser);
+   static int get_mode(class GLParser & parser);
+   static alignment get_hor_align(class GLParser & parser);
+   static alignment get_ver_align(class GLParser & parser);
+   static GPList<GMapArea> get_map_areas(class GLParser & parser);
+#ifndef NO_METADATA_IN_ANT_CHUNK
+   static GMap<GUTF8String, GUTF8String>get_metadata(GLParser & parser);
+#endif
+   static void del_all_items(const char * name, class GLParser & parser);
+};
+
+// -------- DJVUANNO --------
+
+
+/** This is a top-level class containing annotations of a DjVu document (or
+    just a page). It has only two functions: \Ref{encode}() and
+    \Ref{decode}().  Both of them work with a sequence of annotation chunks
+    from #FORM:ANNO# form. Basing on the name of the chunks they call
+    #encode()# and #decode()# functions of the proper annotation structure
+    (like \Ref{ANT}). The real work of encoding and decoding is done by
+    lower-level classes. */
+class DjVuAnno : public GPEnabled
+{
+protected:
+   DjVuAnno(void) {}
+public:
+   /// Creation method.
+   static GP<DjVuAnno> create(void) { return new DjVuAnno; }
+
+   GP<DjVuANT>	ant;
+
+      /** Decodes a sequence of annotation chunks and merges contents of every
+	  chunk with previously decoded information. This function
+	  should be called right after applying \Ref{IFFByteStream::get_chunk}()
+	  to data from #FORM:ANNO#. */
+   void decode(const GP<ByteStream> &bs);
+
+      /** Encodes all annotations back into a sequence of chunks to be put
+	  inside a #FORM:ANNO#. */
+   void	encode(const GP<ByteStream> &bs);
+
+      /// Returns a copy of this object
+   GP<DjVuAnno>	copy(void) const;
+
+      /** Merged the contents of this class and of annotations
+	  pointed by #anno# pointer */
+   void		merge(const GP<DjVuAnno> & anno);
+
+      /** Returns the number of bytes needed by this data structure. It's
+	  used by caching routines to estimate the size of a \Ref{DjVuImage}. */
+   inline unsigned int get_memory_usage() const;
+      /// Obtain the <MAP></MAP> tag for these annotations.
+   GUTF8String get_xmlmap(const GUTF8String &name, const int height) const;
+      /// Write the <MAP></MAP> tag for these annotations.
+   void writeMap(
+     ByteStream &bs,const GUTF8String &name, const int height) const;
+      /// Obtain the XML flags for the default specifications.
+   GUTF8String get_paramtags(void) const;
+      /// Write the XML flags for the default specifications.
+   void writeParam(ByteStream &out_str) const;
+private: // dummy stuff
+   static void decode(ByteStream *);
+   static void encode(ByteStream *);
+};
+
+//@}
+
+inline unsigned int 
+DjVuAnno::get_memory_usage() const
+{
+  return (ant)?(ant->get_memory_usage()):0;
+}
+
+// ----- THE END
+
+#ifdef HAVE_NAMESPACES
+}
+# ifndef NOT_USING_DJVU_NAMESPACE
+using namespace DJVU;
+# endif
+#endif
+#endif