Port inkscape to librevenge framework for WPG, CDR and VSD imports

Fixed bugs:
  - https://launchpad.net/bugs/1323592

Original authors:
  - Fridrich Strba <fridrich.strba@bluewin.ch>
  - Alex Valavanis <valavanisalex@gmail.com>

(bzr r13621)

4 files changed, 115 insertions, 41 deletions

diff --git a/src/extension/internal/cdr-input.cpp b/src/extension/internal/cdr-input.cpp
index 0111ed626..748bf4477 100644
--- a/src/extension/internal/cdr-input.cpp
+++ b/src/extension/internal/cdr-input.cpp
@@ -24,7 +24,21 @@
 #include <cstring>
 
 #include <libcdr/libcdr.h>
-#include <libwpd-stream/libwpd-stream.h>
+
+// TODO: Drop this check when librevenge is widespread.
+#if WITH_LIBCDR01
+  #include <librevenge-stream/librevenge-stream.h>
+
+  using librevenge::RVNGString;
+  using librevenge::RVNGFileStream;
+  using librevenge::RVNGStringVector;
+#else
+  #include <libwpd-stream/libwpd-stream.h>
+
+  typedef WPXString               RVNGString;
+  typedef WPXFileStream           RVNGFileStream;
+  typedef libcdr::CDRStringVector RVNGStringVector;
+#endif
 
 #include <gtkmm/alignment.h>
 #include <gtkmm/comboboxtext.h>
@@ -60,7 +74,7 @@ namespace Internal {
 
 class CdrImportDialog : public Gtk::Dialog {
 public:
-     CdrImportDialog(const std::vector<WPXString> &vec);
+     CdrImportDialog(const std::vector<RVNGString> &vec);
      virtual ~CdrImportDialog();
 
      bool showDialog();
@@ -86,12 +100,12 @@ private:
      class Gtk::VBox * vbox2;
      class Gtk::Widget * _previewArea;
 
-     const std::vector<WPXString> &_vec;   // Document to be imported
+     const std::vector<RVNGString> &_vec;   // Document to be imported
      unsigned _current_page;  // Current selected page
      int _preview_width, _preview_height;    // Size of the preview area
 };
 
-CdrImportDialog::CdrImportDialog(const std::vector<WPXString> &vec)
+CdrImportDialog::CdrImportDialog(const std::vector<RVNGString> &vec)
      : _vec(vec), _current_page(1)
 {
      int num_pages = _vec.size();
@@ -210,14 +224,20 @@ void CdrImportDialog::_setPreviewPage(unsigned page)
 
 SPDocument *CdrInput::open(Inkscape::Extension::Input * /*mod*/, const gchar * uri)
 {
-     WPXFileStream input(uri);
+     RVNGFileStream input(uri);
 
      if (!libcdr::CDRDocument::isSupported(&input)) {
           return NULL;
      }
 
-     libcdr::CDRStringVector output;
+     RVNGStringVector output;
+#if WITH_LIBCDR01
+     librevenge::RVNGSVGDrawingGenerator generator(output, "svg");
+
+     if (!libcdr::CDRDocument::parse(&input, &generator)) {
+#else
      if (!libcdr::CDRDocument::generateSVG(&input, output)) {
+#endif
           return NULL;
      }
 
@@ -225,9 +245,9 @@ SPDocument *CdrInput::open(Inkscape::Extension::Input * /*mod*/, const gchar * u
           return NULL;
      }
 
-     std::vector<WPXString> tmpSVGOutput;
+     std::vector<RVNGString> tmpSVGOutput;
      for (unsigned i=0; i<output.size(); ++i) {
-          WPXString tmpString("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
+          RVNGString tmpString("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
           tmpString.append(output[i]);
           tmpSVGOutput.push_back(tmpString);
      }
diff --git a/src/extension/internal/vsd-input.cpp b/src/extension/internal/vsd-input.cpp
index 6fc79237b..674997d54 100644
--- a/src/extension/internal/vsd-input.cpp
+++ b/src/extension/internal/vsd-input.cpp
@@ -24,7 +24,22 @@
 #include <cstring>
 
 #include <libvisio/libvisio.h>
-#include <libwpd-stream/libwpd-stream.h>
+
+// TODO: Drop this check when librevenge is widespread.
+#if WITH_LIBVISIO01
+  #include <librevenge-stream/librevenge-stream.h>
+
+  using librevenge::RVNGString;
+  using librevenge::RVNGFileStream;
+  using librevenge::RVNGStringVector;
+#else
+  #include <libwpd-stream/libwpd-stream.h>
+
+  typedef WPXString                 RVNGString;
+  typedef WPXFileStream             RVNGFileStream;
+  typedef libvisio::VSDStringVector RVNGStringVector;
+#endif
+
 
 #include <gtkmm/alignment.h>
 #include <gtkmm/comboboxtext.h>
@@ -59,7 +74,7 @@ namespace Internal {
 
 class VsdImportDialog : public Gtk::Dialog {
 public:
-     VsdImportDialog(const std::vector<WPXString> &vec);
+     VsdImportDialog(const std::vector<RVNGString> &vec);
      virtual ~VsdImportDialog();
 
      bool showDialog();
@@ -85,12 +100,12 @@ private:
      class Gtk::VBox * vbox2;
      class Gtk::Widget * _previewArea;
 
-     const std::vector<WPXString> &_vec;   // Document to be imported
+     const std::vector<RVNGString> &_vec;   // Document to be imported
      unsigned _current_page;  // Current selected page
      int _preview_width, _preview_height;    // Size of the preview area
 };
 
-VsdImportDialog::VsdImportDialog(const std::vector<WPXString> &vec)
+VsdImportDialog::VsdImportDialog(const std::vector<RVNGString> &vec)
      : _vec(vec), _current_page(1)
 {
      int num_pages = _vec.size();
@@ -209,14 +224,20 @@ void VsdImportDialog::_setPreviewPage(unsigned page)
 
 SPDocument *VsdInput::open(Inkscape::Extension::Input * /*mod*/, const gchar * uri)
 {
-     WPXFileStream input(uri);
+     RVNGFileStream input(uri);
 
      if (!libvisio::VisioDocument::isSupported(&input)) {
           return NULL;
      }
 
-     libvisio::VSDStringVector output;
+     RVNGStringVector output;
+#if WITH_LIBVISIO01
+     librevenge::RVNGSVGDrawingGenerator generator(output, "svg");
+
+     if (!libvisio::VisioDocument::parse(&input, &generator)) {
+#else
      if (!libvisio::VisioDocument::generateSVG(&input, output)) {
+#endif
           return NULL;
      }
 
@@ -224,9 +245,9 @@ SPDocument *VsdInput::open(Inkscape::Extension::Input * /*mod*/, const gchar * u
           return NULL;
      }
 
-     std::vector<WPXString> tmpSVGOutput;
+     std::vector<RVNGString> tmpSVGOutput;
      for (unsigned i=0; i<output.size(); ++i) {
-          WPXString tmpString("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
+          RVNGString tmpString("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
           tmpString.append(output[i]);
           tmpSVGOutput.push_back(tmpString);
      }
diff --git a/src/extension/internal/wpg-input.cpp b/src/extension/internal/wpg-input.cpp
index 14ff3ec77..12d86a99a 100644
--- a/src/extension/internal/wpg-input.cpp
+++ b/src/extension/internal/wpg-input.cpp
@@ -52,16 +52,24 @@
 #include "util/units.h"
 #include <cstring>
 
-// Take a guess and fallback to 0.1.x if no configure has run
-#if !defined(WITH_LIBWPG01) && !defined(WITH_LIBWPG02)
-#define WITH_LIBWPG01 1
+// Take a guess and fallback to 0.2.x if no configure has run
+#if !defined(WITH_LIBWPG03) && !defined(WITH_LIBWPG02)
+#define WITH_LIBWPG02 1
 #endif
 
 #include "libwpg/libwpg.h"
-#if WITH_LIBWPG01
-#include "libwpg/WPGStreamImplementation.h"
-#elif WITH_LIBWPG02
-#include "libwpd-stream/libwpd-stream.h"
+#if WITH_LIBWPG03
+  #include <librevenge-stream/librevenge-stream.h>
+
+  using librevenge::RVNGString;
+  using librevenge::RVNGFileStream;
+  using librevenge::RVNGInputStream;
+#else
+  #include "libwpd-stream/libwpd-stream.h"
+
+  typedef WPXString               RVNGString;
+  typedef WPXFileStream           RVNGFileStream;
+  typedef WPXInputStream          RVNGInputStream;
 #endif
 
 using namespace libwpg;
@@ -73,17 +81,15 @@ namespace Internal {
 
 SPDocument *WpgInput::open(Inkscape::Extension::Input * /*mod*/, const gchar * uri)
 {
-#if WITH_LIBWPG01
-    WPXInputStream* input = new libwpg::WPGFileStream(uri);
-#elif WITH_LIBWPG02
-    WPXInputStream* input = new WPXFileStream(uri);
-#endif
+    RVNGInputStream* input = new RVNGFileStream(uri);
+#if WITH_LIBWPG03
+    if (input->isStructured()) {
+        RVNGInputStream* olestream = input->getSubStreamByName("PerfectOffice_MAIN");
+#else
     if (input->isOLEStream()) {
-#if WITH_LIBWPG01
-        WPXInputStream* olestream = input->getDocumentOLEStream();
-#elif WITH_LIBWPG02
-        WPXInputStream* olestream = input->getDocumentOLEStream("PerfectOffice_MAIN");
+        RVNGInputStream* olestream = input->getDocumentOLEStream("PerfectOffice_MAIN");
 #endif
+
         if (olestream) {
             delete input;
             input = olestream;
@@ -98,15 +104,24 @@ SPDocument *WpgInput::open(Inkscape::Extension::Input * /*mod*/, const gchar * u
         return NULL;
     }
 
-#if WITH_LIBWPG01
-    libwpg::WPGString output;
-#elif WITH_LIBWPG02
-    WPXString output;
-#endif
+#if WITH_LIBWPG03
+    librevenge::RVNGStringVector vec;
+    librevenge::RVNGSVGDrawingGenerator generator(vec, "");
+
+    if (!libwpg::WPGraphics::parse(input, &generator) || vec.empty() || vec[0].empty()) {
+        delete input;
+        return NULL;
+    }
+
+    RVNGString output("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\n");
+    output.append(vec[0]);
+#else
+    RVNGString output;
     if (!libwpg::WPGraphics::generateSVG(input, output)) {
         delete input;
         return NULL;
     }
+#endif
 
     //printf("I've got a doc: \n%s", painter.document.c_str());
 
diff --git a/src/ui/dialog/symbols.cpp b/src/ui/dialog/symbols.cpp
index c58df864c..a9cf8d068 100644
--- a/src/ui/dialog/symbols.cpp
+++ b/src/ui/dialog/symbols.cpp
@@ -62,8 +62,20 @@
 #include "widgets/icon.h"
 
 #ifdef WITH_LIBVISIO
-#include <libvisio/libvisio.h>
-#include <libwpd-stream/libwpd-stream.h>
+  #include <libvisio/libvisio.h>
+
+  // TODO: Drop this check when librevenge is widespread.
+  #if WITH_LIBVISIO01
+    #include <librevenge-stream/librevenge-stream.h>
+
+    using librevenge::RVNGFileStream;
+    using librevenge::RVNGStringVector;
+  #else
+    #include <libwpd-stream/libwpd-stream.h>
+
+    typedef WPXFileStream             RVNGFileStream;
+    typedef libvisio::VSDStringVector RVNGStringVector;
+  #endif
 #endif
 
 #include "verbs.h"
@@ -495,14 +507,20 @@ void SymbolsDialog::iconChanged() {
 // Read Visio stencil files
 SPDocument* read_vss( gchar* fullname, gchar* filename ) {
 
-  WPXFileStream input(fullname);
+  RVNGFileStream input(fullname);
 
   if (!libvisio::VisioDocument::isSupported(&input)) {
     return NULL;
   }
 
-  libvisio::VSDStringVector output;
+  RVNGStringVector output;
+#if WITH_LIBVISIO01
+  librevenge::RVNGSVGDrawingGenerator generator(output, "svg");
+
+  if (!libvisio::VisioDocument::parseStencils(&input, &generator)) {
+#else
   if (!libvisio::VisioDocument::generateSVGStencils(&input, output)) {
+#endif
     return NULL;
   }