--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gui/src/qtinfo/webinfo.cc	Mon Jul 30 19:27:14 2012 +0200
@@ -0,0 +1,209 @@
+/* Copyright (C) 2009 P.L. Lucas
+ * Copyright (C) 2012 Jacob Dawid <jacob.dawid@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include "webinfo.h"
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+
+
+webinfo::webinfo (QWidget *parent)
+  :QWidget (parent)
+{
+  _font_web = font ();
+
+  QVBoxLayout *layout = new QVBoxLayout ();
+  setLayout (layout);
+
+  QHBoxLayout *hboxLayout = new QHBoxLayout ();
+  layout->addLayout (hboxLayout);
+
+  _close_tab_button = new QPushButton (this);
+  _close_tab_button->setSizePolicy (QSizePolicy::Fixed,QSizePolicy::Preferred);
+  _close_tab_button->setIcon (QIcon (":/actions/icons/stop.png"));
+  hboxLayout->addWidget (_close_tab_button);
+
+  _tab_bar = new QTabBar (this);
+  _tab_bar->setSizePolicy (QSizePolicy::Preferred,QSizePolicy::Preferred);
+  _tab_bar->setExpanding (false);
+  hboxLayout->addWidget (_tab_bar);
+
+  _zoom_in_button = new QToolButton (this);
+  _zoom_in_button->setSizePolicy (QSizePolicy::Fixed,QSizePolicy::Preferred);
+  _zoom_in_button->setIcon (QIcon (":/actions/icons/zoom-in.png"));
+  hboxLayout->addWidget (_zoom_in_button);
+
+  _zoom_out_button = new QToolButton (this);
+  _zoom_out_button->setSizePolicy (QSizePolicy::Fixed,QSizePolicy::Preferred);
+  _zoom_out_button->setIcon (QIcon (":/actions/icons/zoom-out.png"));
+  hboxLayout->addWidget (_zoom_out_button);
+
+  _stacked_widget = new QStackedWidget (this);
+  layout->addWidget (_stacked_widget);
+
+  hboxLayout = new QHBoxLayout ();
+  layout->addLayout (hboxLayout);
+
+  _search_line_edit = new QLineEdit(this);
+  _search_line_edit->setPlaceholderText (tr ("Type here and press \'Return\' to search"));
+  hboxLayout->addWidget (_search_line_edit);
+
+  _search_check_box = new QCheckBox (tr ("Global search"));
+  hboxLayout->addWidget (_search_check_box);
+
+  connect (_close_tab_button, SIGNAL (clicked ()), this, SLOT (close_tab ()));
+  connect (_tab_bar, SIGNAL (currentChanged (int)), this, SLOT (current_tab_changed (int)));
+  connect (_zoom_in_button, SIGNAL (clicked ()), this, SLOT (zoom_in ()));
+  connect (_zoom_out_button, SIGNAL (clicked ()), this, SLOT (zoom_out ()));
+  connect (_search_line_edit, SIGNAL (returnPressed ()), this, SLOT (search ()));
+
+  resize (500, 300);
+
+  set_info_path ("../../doc/interpreter/octave.info");
+}
+
+void
+webinfo::set_info_path (QString info_path)
+{
+  _parser.set_info_path (info_path);
+  load_node ("Top");
+}
+
+void
+webinfo::load_node (QString node_name)
+{
+  //Check if node has been already opened.
+  for (int i = 0;i < _tab_bar->count (); i++)
+    {
+      if (node_name == _tab_bar->tabText (i))
+        {
+          _tab_bar->setCurrentIndex (i);
+          return;
+        }
+    }
+
+  QString text = _parser.search_node (node_name);
+  int i = _parser.is_ref (node_name);
+  _text_browser = addNewTab (node_name);
+  _text_browser->setHtml (_parser.node_text_to_html (text, i - 1, "anchor"));
+
+  if (i != -1)
+    {
+      _text_browser->scrollToAnchor ("anchor");
+    }
+}
+
+void
+webinfo::link_clicked (const QUrl & link)
+{
+  QString node = link.toString ();
+  load_node (node);
+}
+
+void
+webinfo::current_tab_changed (int index)
+{
+  QVariant data = _tab_bar->tabData (index);
+  _text_browser = (QTextBrowser*) (data.value<void*> ());
+
+  _stacked_widget->setCurrentIndex (_stacked_widget->indexOf (_text_browser));
+
+  if (_text_browser->font () != _font_web)
+    {
+      _text_browser->setFont (_font_web);
+    }
+}
+
+QTextBrowser *
+webinfo::addNewTab(QString name)
+{
+  _text_browser = new QTextBrowser (this);
+  _text_browser->setOpenLinks (false);
+  _text_browser->show ();
+
+  connect (_text_browser, SIGNAL (anchorClicked (const QUrl &)), this, SLOT (link_clicked (const QUrl &)) );
+  disconnect(_tab_bar, SIGNAL (currentChanged(int)), this, SLOT (current_tab_changed (int)));
+
+  int ns = _stacked_widget->addWidget (_text_browser);
+  _stacked_widget->setCurrentIndex (ns);
+
+  int nt = _tab_bar->addTab (name);
+  _tab_bar->setCurrentIndex (nt);
+  QVariant data;
+  data.setValue ( (void*)_text_browser);
+  _tab_bar->setTabData (nt, data);
+
+  connect (_tab_bar, SIGNAL (currentChanged (int)), this, SLOT (current_tab_changed (int)));
+
+  if (_text_browser->font () != _font_web)
+    {
+      _text_browser->setFont (_font_web);
+    }
+  return _text_browser;
+}
+
+void
+webinfo::close_tab ()
+{
+  int index = _tab_bar->currentIndex ();
+  if (_tab_bar->tabText (index) != "Top")
+    closeTab (index);
+}
+
+void
+webinfo::closeTab (int index)
+{
+  QVariant data = _tab_bar->tabData (index);
+  QWidget *w = (QWidget*) (data.value<void*> ());
+  _stacked_widget->removeWidget (w);
+  delete w;
+
+  _tab_bar->removeTab (index);
+}
+
+void
+webinfo::search ()
+{
+  if (_search_check_box->isChecked ())
+    {
+      // Global search
+      QString results = _parser.global_search (_search_line_edit->text (), 5);
+      _text_browser=addNewTab ("Results for: " + _search_line_edit->text ());
+      _text_browser->setHtml (results);
+    }
+  else
+    {
+      // Local search
+      _text_browser->find (_search_line_edit->text ());
+    }
+}
+
+void
+webinfo::zoom_in ()
+{
+  _font_web.setPointSize (_font_web.pointSize() + 1);
+  _text_browser->setFont (_font_web);
+}
+
+void
+webinfo::zoom_out ()
+{
+  _font_web.setPointSize (_font_web.pointSize() - 1);
+  _text_browser->setFont (_font_web);
+}
+