Added abandoned KDE3 version of knowit

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/knowit@1091582 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 432 insertions, 0 deletions

diff --git a/src/notes.cpp b/src/notes.cpp
new file mode 100644
index 0000000..0c53883
--- /dev/null
+++ b/src/notes.cpp
@@ -0,0 +1,432 @@
+/***************************************************************************
+                          notes.cpp  -  description
+                             -------------------
+    begin                : sob lis 16 2002
+    copyright            : (C) 2002-2004 by Micha� Rudolf
+    email                : [email protected]
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "notes.h"
+#include <qstringlist.h>
+#include <qfile.h>
+#include <qdatetime.h>
+#include <qtextstream.h>
+#include <qtextcodec.h>
+#include <klocale.h>
+#include <klistview.h>
+#include <kglobal.h>
+#include <kiconloader.h>
+#include <kmimetype.h>
+#include <krun.h>
+#include <kurl.h>
+#include <klistview.h>
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#else
+#define VERSION "?"
+#endif
+
+
+void TNoteLink::save(QTextStream& ts) const
+{
+   if (!link.isEmpty()) {
+      ts << "\\Link " << link << "\n";
+      if (!description.isEmpty())
+         ts << "\\Descr " << description << "\n";
+      }
+}
+
+QString TNoteLink::text(int fmt) const
+{
+   if (fmt == LinkOnly || description.isEmpty()) return link;
+   else if (fmt == DescriptionOnly) return description;
+   else if (fmt == LinkDescription)
+      return QString("%1 (%2)").arg(link).arg(description);
+   else return QString("%1 (%2)").arg(description).arg(link);
+}
+
+QPixmap TNoteLink::icon() const
+{
+   return KGlobal::iconLoader()->loadIcon(KMimeType::iconForURL(KURL(link)),
+      KIcon::Small);
+}
+
+void TNoteLink::open() const
+{
+   if (!isLocalReference())
+      new KRun(KURL(link), 0, false, true);
+}
+
+void TNoteLink::openWith() const
+{
+   if (!isLocalReference())
+      KRun::displayOpenWithDialog(KURL(link));
+}
+
+bool TNoteLink::isLocalReference() const
+{
+   KURL url(link);
+   return url.protocol() == "knowit";
+}
+
+
+
+
+
+TNotesCollection::TNotesCollection()
+{
+   Pixmaps[0] = KGlobal::iconLoader()->loadIcon("ascii", KIcon::Small);
+   Pixmaps[1] = KGlobal::iconLoader()->loadIcon("txt", KIcon::Small);
+   Pixmaps[2] = KGlobal::iconLoader()->loadIcon("folder", KIcon::Small);
+   Pixmaps[3] = KGlobal::iconLoader()->loadIcon("folder_txt", KIcon::Small);
+   modified = false;
+   autoUpdate = true;
+}
+
+
+
+TNotesCollection::~TNotesCollection()
+{}
+
+void TNotesCollection::addNote(QListViewItem* item)
+{
+   insert(item, new TNote(item, this));
+   QListViewItem* parent = item->parent();
+   if (parent) find(parent)->updateView();
+   modified = true;
+}
+
+void TNotesCollection::addNote(QListViewItem* item, const QString& s)
+{
+   insert(item, new TNote(item, this, s));
+   QListViewItem* parent = item->parent();
+   if (parent) find(parent)->updateView();
+   modified = true;
+}
+
+void TNotesCollection::removeNote(QListViewItem* item)
+{
+   TNote* note = find(item);
+   if (!note) qWarning("Internal error while removing note\n");
+   else {
+      QListViewItem* parent = item->parent();
+      for (QListViewItemIterator it(item); it.current() &&
+        (it.current() == item || it.current()->depth() > item->depth()); ++it)
+         find(it.current())->destroy();
+      delete item;
+      if (parent) find(parent)->updateView();
+      modified = true;
+   }
+}
+
+bool TNotesCollection::changeNote(QListViewItem* item, const QString& s)
+{
+   TNote* changed = find(item);
+   if (!changed) {
+      qWarning("Internal error while changing note\n");
+      return false;
+   }
+   if (changed->change(s))
+      return modified = true;
+   else
+      return false;
+}
+
+void TNotesCollection::clearNotes()
+{
+   setAutoDelete(true);
+   clear();
+   setAutoDelete(false);
+}
+
+const QString& TNotesCollection::text(QListViewItem* item)
+{
+   TNote* note = find(item);
+   if (!note)
+      qFatal("Internal error while accessing note text\n");
+   return note->text;
+}
+
+void TNotesCollection::updateNotesView()
+{
+   for (QPtrDictIterator<TNote> it(*this); it.current(); ++it)
+      it.current()->updateView();
+}
+
+
+
+
+
+TNote::TNote(QListViewItem* i, TNotesCollection* coll) : text()
+{
+   collection = coll;
+   item = i;
+   updateView();
+}
+
+TNote::TNote(QListViewItem* i, TNotesCollection* coll, const QString& s) :
+   text(s)
+{
+   collection = coll;
+   item = i;
+   updateView();
+}
+
+bool TNote::isEmpty()
+{
+   return !text.length();
+}
+
+bool TNote::contains(const QString& sought, bool case_sensitive)
+{
+   return text.contains(sought, case_sensitive);
+}
+
+
+TNote::~TNote()
+{
+}
+
+void TNote::destroy()
+{
+   collection->remove(item);
+   delete this;
+}
+
+bool TNote::change(const QString& s)
+{
+   if (text == s)
+      return false;
+   text = s;
+   updateView();
+   return true;
+}
+
+TNote::State TNote::state()
+{
+   if (text.stripWhiteSpace().isEmpty())
+      return (item->childCount()) ? EmptyParent : Empty;
+   else
+      return (item->childCount()) ? TextParent : Text;
+}
+
+void TNote::updateView()
+{
+   if (collection->autoUpdate)
+      item->setPixmap(0, collection->Pixmaps[state()]);
+}
+
+bool TNote::saveHTML(const KURL& fname, const QString& origname, const QString& style,
+   int flags)
+{
+  QFile file(fname.path());
+  if (!file.open( IO_WriteOnly))
+     return false;
+  QTextStream ts(&file);
+  if (flags & UseUTF8) ts.setEncoding(QTextStream::UnicodeUTF8);
+  else ts.setEncoding(QTextStream::Locale);
+  ts << "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">\n"
+     "<html>\n<head>\n   <title>" << i18n("KnowIt document") <<
+     QString("</title>\n   <meta http-equiv=\"Content-Type\" "
+     "content=\"text/html; charset=%1\">\n").arg(ts.codec()->mimeName());
+  if (!style.isEmpty())
+     ts << "   <style type=\"text/css\">\n   " << style << "\n   </style>\n";
+  ts << "</head>\n\n<body>\n";
+
+  QValueVector<int> Depths;
+  Depths.append(0);
+  if (flags & TOC) {
+     ts << QString("<h1>%1</h1>\n").arg(i18n("Table of contents"));
+     saveHTMLTocEntry(ts, Depths, flags);
+     ts << "\n\n";
+     }
+
+  Depths.clear();
+  Depths.append(0);
+  saveHTMLBuf(ts, Depths, flags);
+  
+  QString epilog = i18n("Exported from %1 by KnowIt %2, %3.");
+  ts << "<br><br><br><small>" << epilog.arg(origname)
+     .arg(VERSION)
+     .arg(QDateTime::currentDateTime().toString()) << "</small>\n\n";
+  ts << "</body>\n</html>\n\n";
+  return true;
+}
+
+bool TNote::saveHTMLBuf(QTextStream& ts, QValueVector<int>& depths,
+  int flags)
+{
+   int hlevel = depths.count();
+   depths.last() = depths.last()+1;
+   if (hlevel < 1) hlevel = 1;
+   else if (hlevel > 3) hlevel = 3;
+   QString id, number;
+   for (uint i=0; i<depths.count(); i++)
+         id += QString("%1.").arg(depths[i]);
+   if (flags & Enumerate)
+      number = id + " ";
+   
+   ts << QString("<h%1 id=\"S%2\">%3%4</h%5>").arg(hlevel).arg(id).arg(number)
+      .arg(item->text(0)).arg(hlevel);
+   QString htmltext = text;
+   int begin = htmltext.find("<body");
+   if (begin >= 0) begin = htmltext.find(">", begin);
+   int end = htmltext.find("</body>");
+   if (begin < 0) begin = 0;
+   if (end <= begin) end = htmltext.length();
+   ts << htmltext.mid(begin+1, end-begin-1);
+
+   /* save links */
+   for (QValueList<TNoteLink>::Iterator LinkList = links.begin();
+      LinkList != links.end(); ++LinkList)
+      ts << QString("<a href=\"%1\">%2</a><br>\n").arg((*LinkList).link)
+         .arg((*LinkList).text(TNoteLink::DescriptionOnly));
+
+   /* save rule */
+   if (flags & AddRule) ts << "<hr size=\"1\" noshade>\n\n";
+   else ts << "\n\n";
+
+   /* save children */
+   if ((SaveSubnotes | SaveAll) & flags && item->childCount()) {
+      depths.append(0);
+      collection->find(item->firstChild())->saveHTMLBuf(ts, depths, flags);
+      }
+   if ((SaveSubnotes | SaveAll) & flags && item->nextSibling())
+      collection->find(item->nextSibling())->saveHTMLBuf(ts, depths, flags);
+
+   if (!item->nextSibling()) depths.pop_back();
+   return true;
+}
+
+bool TNote::saveHTMLTocEntry(QTextStream& ts, QValueVector<int>& depths, int flags)
+{
+   QString space;
+   space.fill(' ', depths.count());
+   depths.last() = depths.last()+1;
+   if (depths.last() == 1) {
+      ts << space;
+      if (depths.count() != 1) ts << "<dd>";
+      ts << "<dl>\n";
+      }
+
+   QString id, number;
+   for (uint i=0; i<depths.count(); i++)
+         id += QString("%1.").arg(depths[i]);
+   if (flags & Enumerate) number = id + " ";
+
+   ts << space;
+   ts << QString("<dt><a href=\"#S%1\">%2%3</a></dt>\n").arg(id).arg(number).
+      arg(item->text(0));
+   if ((SaveSubnotes | SaveAll) & flags && item->childCount()) {
+      depths.append(0);
+      collection->find(item->firstChild())->saveHTMLTocEntry(ts, depths, flags);
+      }
+   if ((SaveSubnotes | SaveAll) & flags && item->nextSibling())
+      collection->find(item->nextSibling())->saveHTMLTocEntry(ts, depths, flags);
+   if (!item->nextSibling()) {
+      depths.pop_back();
+      ts << space;
+      ts << "</dl>";
+      if (depths.count()) ts << "</dd>";
+      ts << "\n";
+      }
+   return true;
+}
+
+void TNote::addLink(const QString& s)
+{
+   links.append(TNoteLink(s));
+   collection->modified = true;
+}
+
+void TNote::addLink(const TNoteLink& l)
+{
+   links.append(l);
+   collection->modified = true;
+}
+
+void TNote::removeLink(int i)
+{
+   links.remove(links[i]);
+   collection->modified = true;
+}
+
+void TNote::modifyLink(int i, const QString& s)
+{
+   links[i].link = s;
+   collection->modified = true;
+}
+
+void TNote::modifyLink(int i, TNoteLink& l)
+{
+   if (l != links[i])
+      collection->modified = true;
+   links[i] = l;
+}
+
+void TNote::modifyLinkDescription(int i, const QString& s)
+{
+   links[i].description = s;
+   collection->modified = true;
+}
+
+int TNote::linkCount() const
+{
+   return links.count();
+}
+
+const TNoteLink& TNote::link(int i) const
+{
+   return links[i];
+}
+
+
+void TNote::save(QTextStream& ts, bool current)
+{
+   const QString header = "\\NewEntry %1 %2\n";
+   const QString activeheader = "\\CurrentEntry %1 %2\n";
+
+   if (current)
+      ts << activeheader.arg(item->depth()).arg(item->text(0));
+   else
+      ts << header.arg(item->depth()).arg(item->text(0));
+   for (QValueList<TNoteLink>::Iterator LinkList = links.begin();
+        LinkList != links.end(); ++LinkList)
+        (*LinkList).save(ts);
+   ts << text;
+   if (!text.isEmpty())
+      ts << '\n';
+   ts << '\n';
+}
+
+void TNote::open(QTextStream& ts)
+{
+   QString s;
+   text = "";
+   links.clear();
+
+   while (true) {
+      s = ts.readLine();
+      if (s.isNull() || s.isEmpty())
+         break;
+      if (s.left(6) == "\\Link ")
+         addLink(s.mid(6));
+      else if (s.left(7) == "\\Descr " && links.count()) 
+         modifyLinkDescription(links.count()-1, s.mid(7));
+      else {
+         if (text.length())
+            text += '\n';
+         text += s;
+      }
+   }
+}