todo dnd

4 files changed, 284 insertions, 22 deletions

diff --git a/libkcal/dndfactory.cpp b/libkcal/dndfactory.cpp
new file mode 100644
index 0000000..cdcfae4
--- a/dev/null
+++ b/libkcal/dndfactory.cpp
@@ -0,0 +1,186 @@
+/*
+    This file is part of libkcal.
+    Copyright (c) 1998 Preston Brwon
+    Copyright (c) 2001,2002 Cornelius Schumacher <schumacher@kde.org>
+    Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+    Boston, MA 02111-1307, USA.
+*/
+
+#include <qapplication.h>
+#include <qclipboard.h>
+
+#include <kiconloader.h>
+#include <kdebug.h>
+#include <kmessagebox.h>
+#include <klocale.h>
+
+#include "vcaldrag.h"
+#include "icaldrag.h"
+#include "calendar.h"
+#include "vcalformat.h"
+#include "icalformat.h"
+#include "calendarlocal.h"
+
+#include "dndfactory.h"
+
+using namespace KCal;
+
+DndFactory::DndFactory( Calendar *cal ) :
+  mCalendar( cal )
+{
+}
+
+ICalDrag *DndFactory::createDrag( Incidence *incidence, QWidget *owner )
+{
+  CalendarLocal cal( mCalendar->timeZoneId() );
+  Incidence *i = incidence->clone();
+  cal.addIncidence( i );
+
+  ICalDrag *icd = new ICalDrag( &cal, owner );
+  if ( i->type() == "Event" )
+    icd->setPixmap( BarIcon( "appointment" ) );
+  else if ( i->type() == "Todo" )
+    icd->setPixmap( BarIcon( "todo" ) );
+
+  return icd;
+}
+
+Event *DndFactory::createDrop(QDropEvent *de)
+{
+  kdDebug(5800) << "DndFactory::createDrop()" << endl;
+
+  CalendarLocal cal( mCalendar->timeZoneId() );
+
+  if ( ICalDrag::decode( de, &cal ) || VCalDrag::decode( de, &cal ) ) {
+    de->accept();
+
+    QPtrList<Event> events = cal.events();
+    if ( !events.isEmpty() ) {
+      Event *event = new Event( *events.first() );
+      return event;
+    }
+  }
+
+  return 0;
+}
+
+Todo *DndFactory::createDropTodo(QDropEvent *de)
+{
+  kdDebug(5800) << "VCalFormat::createDropTodo()" << endl;
+
+  CalendarLocal cal( mCalendar->timeZoneId() );
+
+  if ( ICalDrag::decode( de, &cal ) || VCalDrag::decode( de, &cal ) ) {
+    de->accept();
+
+    QPtrList<Todo> todos = cal.todos();
+    if ( !todos.isEmpty() ) {
+      Todo *todo = new Todo( *todos.first() );
+      return todo;
+    }
+  }
+
+  return 0;
+}
+
+
+void DndFactory::cutIncidence( Incidence *selectedInc )
+{
+  if ( copyIncidence( selectedInc ) ) {
+    mCalendar->deleteIncidence( selectedInc );
+  }
+}
+
+bool DndFactory::copyIncidence( Incidence *selectedInc )
+{
+  if ( !selectedInc ) 
+    return false;
+  QClipboard *cb = QApplication::clipboard();
+
+  CalendarLocal cal( mCalendar->timeZoneId() );
+  Incidence *inc = selectedInc->clone();
+  cal.addIncidence( inc );
+  cb->setData( new ICalDrag( &cal ) );
+
+  return true;
+}
+
+Incidence *DndFactory::pasteIncidence(const QDate &newDate, const QTime *newTime)
+{
+//  kdDebug(5800) << "DnDFactory::pasteEvent()" << endl;
+
+  CalendarLocal cal( mCalendar->timeZoneId() );
+
+  QClipboard *cb = QApplication::clipboard();
+
+  if ( !ICalDrag::decode( cb->data(), &cal ) &&
+       !VCalDrag::decode( cb->data(), &cal ) ) {
+    kdDebug(5800) << "Can't parse clipboard" << endl;
+    return 0;
+  }
+
+  QPtrList<Incidence> incList = cal.incidences();
+  Incidence *inc = incList.first();
+
+  if ( !incList.isEmpty() && inc ) {
+    inc = inc->clone();
+
+    inc->recreate();
+
+    if ( inc->type() == "Event" ) {
+      
+      Event *anEvent = static_cast<Event*>( inc );
+      // Calculate length of event
+      int daysOffset = anEvent->dtStart().date().daysTo(
+        anEvent->dtEnd().date() );
+      // new end date if event starts at the same time on the new day
+      QDateTime endDate( newDate.addDays(daysOffset), anEvent->dtEnd().time() );
+
+      if ( newTime ) {
+        // additional offset for new time of day
+        int addSecsOffset( anEvent->dtStart().time().secsTo( *newTime ));
+        endDate=endDate.addSecs( addSecsOffset );
+        anEvent->setDtStart( QDateTime( newDate, *newTime ) );
+      } else {
+        anEvent->setDtStart( QDateTime( newDate, anEvent->dtStart().time() ) );
+      }
+      anEvent->setDtEnd( endDate );
+    
+    } else if ( inc->type() == "Todo" ) {
+      Todo *anTodo = static_cast<Todo*>( inc );
+      if ( newTime ) {
+        anTodo->setDtDue( QDateTime( newDate, *newTime ) );
+      } else {
+        anTodo->setDtDue( QDateTime( newDate, anTodo->dtDue().time() ) );
+      }
+    } else if ( inc->type() == "Journal" ) {
+      Journal *anJournal = static_cast<Journal*>( inc );
+      if ( newTime ) {
+        anJournal->setDtStart( QDateTime( newDate, *newTime ) );
+      } else {
+        anJournal->setDtStart( QDateTime( newDate ) );
+      }
+    } else {
+      kdDebug(5850) << "Trying to paste unknown incidence of type " << inc->type() << endl;
+    }
+    
+    return inc;
+   
+  }
+
+  return 0;
+}
diff --git a/libkcal/dndfactory.h b/libkcal/dndfactory.h
index 6b73f34..7e2ca04 100644
--- a/libkcal/dndfactory.h
+++ b/libkcal/dndfactory.h
@@ -2,4 +2,6 @@
     This file is part of libkcal.
+
     Copyright (c) 1998 Preston Brown
-    Copyright (c) 2001,2002 Cornelius Schumacher <schumacher@kde.org>
+    Copyright (c) 2001,2002,2003 Cornelius Schumacher <schumacher@kde.org>
+    Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
 
@@ -21,4 +23,2 @@
 
-// $Id$
-
 #ifndef KCAL_DNDFACTORY_H
@@ -26,5 +26,3 @@
 
-#include "vcalformat.h"
-
-class QDropEvent;
+//#include "libkcal_export.h"
 
@@ -32,2 +30,8 @@ namespace KCal {
 
+class ICalDrag;
+class Event;
+class Todo;
+class Calendar;
+#define LIBKCAL_EXPORT
+
 /**
@@ -36,23 +40,31 @@ namespace KCal {
 
-  @short vCalendar Drag-and-Drop object factory.
+  @short vCalendar/iCalendar Drag-and-Drop object factory.
 */
-class DndFactory {
+class LIBKCAL_EXPORT DndFactory
+{
   public:
-    DndFactory( Calendar * ) {}
+    DndFactory( Calendar * );
+
+    /**
+      Create a drag object.
+    */
+    ICalDrag *createDrag( Incidence *incidence, QWidget *owner );
 
-    /** create an object to be used with the Xdnd Drag And Drop protocol. */
-    ICalDrag *createDrag(Event *, QWidget *) { return 0; }
-    /** create an object to be used with the Xdnd Drag And Drop protocol. */
-    ICalDrag *createDragTodo(Todo *, QWidget *) { return 0; }
     /** Create Todo object from drop event */
-    Todo *createDropTodo(QDropEvent *) { return 0; }
+    Todo *createDropTodo(QDropEvent *de);
     /** Create Event object from drop event */
-    Event *createDrop(QDropEvent *) { return 0; }
-  
-    /** cut event to clipboard */
-    void cutEvent(Event *) {}
-    /** cut, copy, and paste operations follow. */
-    bool copyEvent(Event *) { return false; }
-    /** pastes the event and returns a pointer to the new event pasted. */
-    Event *pasteEvent(const QDate &, const QTime *newTime = 0) { return 0; }
+    Event *createDrop(QDropEvent *de);
+
+    /** cut incidence to clipboard */
+    void cutIncidence( Incidence * );
+    /** copy the incidence to clipboard */
+    bool copyIncidence( Incidence * );
+    /** pastes the event or todo and returns a pointer to the new incidence pasted. */
+    Incidence *pasteIncidence( const QDate &, const QTime *newTime = 0 );
+
+  private:
+    Calendar *mCalendar;
+
+    class Private;
+    Private *d;
 };
diff --git a/libkcal/dndfactory_dummy.h b/libkcal/dndfactory_dummy.h
new file mode 100644
index 0000000..6b73f34
--- a/dev/null
+++ b/libkcal/dndfactory_dummy.h
@@ -0,0 +1,62 @@
+/*
+    This file is part of libkcal.
+    Copyright (c) 1998 Preston Brown
+    Copyright (c) 2001,2002 Cornelius Schumacher <schumacher@kde.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library 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
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+    Boston, MA 02111-1307, USA.
+*/
+
+// $Id$
+
+#ifndef KCAL_DNDFACTORY_H
+#define KCAL_DNDFACTORY_H
+
+#include "vcalformat.h"
+
+class QDropEvent;
+
+namespace KCal {
+
+/**
+  This class implements functions to create Drag and Drop objects used for
+  Drag-and-Drop and Copy-and-Paste.
+
+  @short vCalendar Drag-and-Drop object factory.
+*/
+class DndFactory {
+  public:
+    DndFactory( Calendar * ) {}
+
+    /** create an object to be used with the Xdnd Drag And Drop protocol. */
+    ICalDrag *createDrag(Event *, QWidget *) { return 0; }
+    /** create an object to be used with the Xdnd Drag And Drop protocol. */
+    ICalDrag *createDragTodo(Todo *, QWidget *) { return 0; }
+    /** Create Todo object from drop event */
+    Todo *createDropTodo(QDropEvent *) { return 0; }
+    /** Create Event object from drop event */
+    Event *createDrop(QDropEvent *) { return 0; }
+  
+    /** cut event to clipboard */
+    void cutEvent(Event *) {}
+    /** cut, copy, and paste operations follow. */
+    bool copyEvent(Event *) { return false; }
+    /** pastes the event and returns a pointer to the new event pasted. */
+    Event *pasteEvent(const QDate &, const QTime *newTime = 0) { return 0; }
+};
+
+}
+
+#endif
diff --git a/libkcal/libkcal.pro b/libkcal/libkcal.pro
index 171c726..33c63c3 100644
--- a/libkcal/libkcal.pro
+++ b/libkcal/libkcal.pro
@@ -61,2 +61,3 @@ kincidenceformatter.h \
  todo.h \
+dndfactory.h \
  vcaldrag.h \
@@ -100,2 +101,3 @@ SOURCES = \
  todo.cpp \
+dndfactory.cpp \
  vcaldrag.cpp \