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/kdepim@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 295 insertions, 0 deletions

diff --git a/korganizer/history.cpp b/korganizer/history.cpp
new file mode 100644
index 000000000..5afc325e7
--- /dev/null
+++ b/korganizer/history.cpp
@@ -0,0 +1,295 @@
+/*
+    This file is part of KOrganizer.
+
+    Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org>
+    Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+    As a special exception, permission is given to link this program
+    with any edition of Qt, and distribute the resulting executable,
+    without including the source code for Qt in the source distribution.
+*/
+
+#include "history.h"
+
+#include <libkcal/calendar.h>
+#include <libkcal/incidence.h>
+
+#include <klocale.h>
+#include <kdebug.h>
+
+using namespace KCal;
+using namespace KOrg;
+
+History::History( KCal::Calendar *calendar )
+  : mCalendar( calendar ), mCurrentMultiEntry( 0 ), 
+    mUndoEntry( mEntries ), mRedoEntry( mEntries )
+{
+  mEntries.setAutoDelete( true );
+}
+
+void History::undo()
+{
+  if ( mCurrentMultiEntry ) mCurrentMultiEntry = 0;
+  Entry *entry = mUndoEntry.current();
+  if ( !entry ) return;
+
+  entry->undo();
+  emit undone();
+
+  emit redoAvailable( entry->text() );
+
+  mRedoEntry = mUndoEntry;
+  --mUndoEntry;
+
+  entry = mUndoEntry.current();
+  if ( entry ) emit undoAvailable( entry->text() );
+  else emit undoAvailable( QString::null );
+}
+
+void History::redo()
+{
+  if ( mCurrentMultiEntry ) mCurrentMultiEntry = 0;
+  Entry *entry = mRedoEntry.current();
+  if ( !entry ) return;
+
+  emit undoAvailable( entry->text() );
+
+  entry->redo();
+  emit redone();
+
+  mUndoEntry = mRedoEntry;
+  ++mRedoEntry;
+
+  entry = mRedoEntry.current();
+  if ( entry ) emit redoAvailable( entry->text() );
+  else emit redoAvailable( QString::null );
+}
+
+void History::truncate()
+{
+  while ( mUndoEntry.current() != mEntries.last() ) {
+    mEntries.removeLast();
+  }
+  mRedoEntry = QPtrList<Entry>( mEntries );
+  emit redoAvailable( QString::null );
+}
+
+void History::recordDelete( Incidence *incidence )
+{
+  Entry *entry = new EntryDelete( mCalendar, incidence );
+  if (mCurrentMultiEntry) {
+    mCurrentMultiEntry->appendEntry( entry );
+  } else {
+    truncate();
+    mEntries.append( entry );
+    mUndoEntry.toLast();
+    mRedoEntry = QPtrList<Entry>( mEntries );
+    emit undoAvailable( entry->text() );
+  }
+}
+
+void History::recordAdd( Incidence *incidence )
+{
+  Entry *entry = new EntryAdd( mCalendar, incidence );
+  if (mCurrentMultiEntry) {
+    mCurrentMultiEntry->appendEntry( entry );
+  } else {
+    truncate();
+    mEntries.append( entry );
+    mUndoEntry.toLast();
+    mRedoEntry = QPtrList<Entry>( mEntries );
+    emit undoAvailable( entry->text() );
+  }
+}
+
+void History::recordEdit( Incidence *oldIncidence, Incidence *newIncidence )
+{
+  Entry *entry = new EntryEdit( mCalendar, oldIncidence, newIncidence );
+  if (mCurrentMultiEntry) {
+    mCurrentMultiEntry->appendEntry( entry );
+  } else {
+    truncate();
+    mEntries.append( entry );
+    mUndoEntry.toLast();
+    mRedoEntry = QPtrList<Entry>( mEntries );
+    emit undoAvailable( entry->text() );
+  }
+}
+
+void History::startMultiModify( const QString &description )
+{
+  if ( mCurrentMultiEntry ) {
+    endMultiModify();
+  }
+  mCurrentMultiEntry = new MultiEntry( mCalendar, description );
+  truncate();
+  mEntries.append( mCurrentMultiEntry );
+  mUndoEntry.toLast();
+  mRedoEntry = QPtrList<Entry>( mEntries );
+  emit undoAvailable( mCurrentMultiEntry->text() );
+}
+
+void History::endMultiModify()
+{
+  mCurrentMultiEntry = 0;
+}
+
+
+History::Entry::Entry( KCal::Calendar *calendar )
+  : mCalendar( calendar )
+{
+}
+
+History::Entry::~Entry()
+{
+}
+
+History::EntryDelete::EntryDelete( Calendar *calendar, Incidence *incidence )
+  : Entry( calendar ), mIncidence( incidence->clone() )
+{
+}
+
+History::EntryDelete::~EntryDelete()
+{
+  delete mIncidence;
+}
+
+void History::EntryDelete::undo()
+{
+  // TODO: Use the proper resource instead of asking!
+  mCalendar->addIncidence( mIncidence->clone() );
+}
+
+void History::EntryDelete::redo()
+{
+  Incidence *incidence = mCalendar->incidence( mIncidence->uid() );
+  mCalendar->deleteIncidence( incidence );
+}
+
+QString History::EntryDelete::text()
+{
+  return i18n("Delete %1").arg(mIncidence->type());
+}
+
+
+History::EntryAdd::EntryAdd( Calendar *calendar, Incidence *incidence )
+  : Entry( calendar ), mIncidence( incidence->clone() )
+{
+}
+
+History::EntryAdd::~EntryAdd()
+{
+  delete mIncidence;
+}
+
+void History::EntryAdd::undo()
+{
+  Incidence *incidence = mCalendar->incidence( mIncidence->uid() );
+  if ( incidence )
+    mCalendar->deleteIncidence( incidence );
+}
+
+void History::EntryAdd::redo()
+{
+  // TODO: User the proper resource instead of asking again
+  mCalendar->addIncidence( mIncidence->clone() );
+}
+
+QString History::EntryAdd::text()
+{
+  return i18n("Add %1").arg(mIncidence->type());
+}
+
+
+History::EntryEdit::EntryEdit( Calendar *calendar, Incidence *oldIncidence,
+                               Incidence *newIncidence )
+  : Entry( calendar ), mOldIncidence( oldIncidence->clone() ),
+    mNewIncidence( newIncidence->clone() )
+{
+}
+
+History::EntryEdit::~EntryEdit()
+{
+  delete mOldIncidence;
+  delete mNewIncidence;
+}
+
+void History::EntryEdit::undo()
+{
+  Incidence *incidence = mCalendar->incidence( mNewIncidence->uid() );
+  if ( incidence )
+      mCalendar->deleteIncidence( incidence );
+  // TODO: Use the proper resource instead of asking again
+  mCalendar->addIncidence( mOldIncidence->clone() );
+}
+
+void History::EntryEdit::redo()
+{
+  Incidence *incidence = mCalendar->incidence( mOldIncidence->uid() );
+  if ( incidence )
+      mCalendar->deleteIncidence( incidence );
+  // TODO: Use the proper resource instead of asking again
+  mCalendar->addIncidence( mNewIncidence->clone() );
+}
+
+QString History::EntryEdit::text()
+{
+  return i18n("Edit %1").arg(mNewIncidence->type());
+}
+
+History::MultiEntry::MultiEntry( Calendar *calendar, const QString &text )
+  : Entry( calendar ), mText( text )
+{
+  mEntries.setAutoDelete( true );
+}
+
+History::MultiEntry::~MultiEntry()
+{
+}
+
+void History::MultiEntry::appendEntry( Entry* entry )
+{
+  mEntries.append( entry );
+}
+
+void History::MultiEntry::undo()
+{
+  QPtrListIterator<Entry> it( mEntries );
+  it.toLast();
+  Entry *entry;
+  while ( (entry = it.current()) != 0 ) {
+    --it;
+    entry->undo();
+  }
+}
+
+void History::MultiEntry::redo()
+{
+  QPtrListIterator<Entry> it( mEntries );
+  Entry *entry;
+  while ( (entry = it.current()) != 0 ) {
+    ++it;
+    entry->redo();
+  }
+}
+
+QString History::MultiEntry::text()
+{
+  return mText;
+}
+
+#include "history.moc"