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KCal Library

dndfactory.cpp

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00001 /*
00002   This file is part of the kcal library.
00003 
00004   Copyright (c) 1998 Preston Brown <pbrown@kde.org>
00005   Copyright (c) 2001,2002 Cornelius Schumacher <schumacher@kde.org>
00006   Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
00007   Copyright (c) 2005 Rafal Rzepecki <divide@users.sourceforge.net>
00008   Copyright (c) 2008 Thomas Thrainer <tom_t@gmx.at>
00009 
00010   This library is free software; you can redistribute it and/or
00011   modify it under the terms of the GNU Library General Public
00012   License as published by the Free Software Foundation; either
00013   version 2 of the License, or (at your option) any later version.
00014 
00015   This library is distributed in the hope that it will be useful,
00016   but WITHOUT ANY WARRANTY; without even the implied warranty of
00017   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018   Library General Public License for more details.
00019 
00020   You should have received a copy of the GNU Library General Public License
00021   along with this library; see the file COPYING.LIB.  If not, write to
00022   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00023   Boston, MA 02110-1301, USA.
00024 */
00038 #include "dndfactory.h"
00039 #include "vcaldrag.h"
00040 #include "icaldrag.h"
00041 #include "calendar.h"
00042 #include "calendarlocal.h"
00043 
00044 #include <kiconloader.h>
00045 #include <kdebug.h>
00046 #include <klocale.h>
00047 #include <kurl.h>
00048 
00049 #include <QtGui/QApplication>
00050 #include <QtGui/QClipboard>
00051 #include <QtGui/QDropEvent>
00052 #include <QtGui/QPixmap>
00053 
00054 using namespace KCal;
00055 
00060 //@cond PRIVATE
00061 class KCal::DndFactory::Private
00062 {
00063   public:
00064     Private( Calendar *cal )
00065       : mCalendar ( cal )
00066     {}
00067     Calendar *mCalendar;
00068 };
00069 //@endcond
00070 
00071 DndFactory::DndFactory( Calendar *cal )
00072   : d( new KCal::DndFactory::Private ( cal ) )
00073 {
00074 }
00075 
00076 DndFactory::~DndFactory()
00077 {
00078   delete d;
00079 }
00080 
00081 QMimeData *DndFactory::createMimeData()
00082 {
00083   QMimeData *mimeData = new QMimeData;
00084 
00085   ICalDrag::populateMimeData( mimeData, d->mCalendar );
00086   VCalDrag::populateMimeData( mimeData, d->mCalendar );
00087 
00088   return mimeData;
00089 }
00090 
00091 QDrag *DndFactory::createDrag( QWidget *owner )
00092 {
00093   QDrag *drag = new QDrag( owner );
00094   drag->setMimeData( createMimeData() );
00095 
00096   return drag;
00097 }
00098 
00099 QMimeData *DndFactory::createMimeData( Incidence *incidence )
00100 {
00101   CalendarLocal cal( d->mCalendar->timeSpec() );
00102   Incidence *i = incidence->clone();
00103   cal.addIncidence( i );
00104 
00105   QMimeData *mimeData = new QMimeData;
00106 
00107   ICalDrag::populateMimeData( mimeData, &cal );
00108   VCalDrag::populateMimeData( mimeData, &cal );
00109 
00110   KUrl uri = i->uri();
00111   if ( uri.isValid() ) {
00112     QMap<QString, QString> metadata;
00113     metadata["labels"] = KUrl::toPercentEncoding( i->summary() );
00114     uri.populateMimeData( mimeData, metadata );
00115   }
00116 
00117   return mimeData;
00118 }
00119 
00120 QDrag *DndFactory::createDrag( Incidence *incidence, QWidget *owner )
00121 {
00122   QDrag *drag = new QDrag( owner );
00123   drag->setMimeData( createMimeData( incidence ) );
00124 
00125   if ( incidence->type() == "Event" ) {
00126     drag->setPixmap( BarIcon( "view-calendar-day" ) );
00127   } else if ( incidence->type() == "Todo" ) {
00128     drag->setPixmap( BarIcon( "view-calendar-tasks" ) );
00129   }
00130 
00131   return drag;
00132 }
00133 
00134 Calendar *DndFactory::createDropCalendar( const QMimeData *md )
00135 {
00136   Calendar *cal = new CalendarLocal( d->mCalendar->timeSpec() );
00137 
00138   if ( ICalDrag::fromMimeData( md, cal ) ||
00139        VCalDrag::fromMimeData( md, cal ) ){
00140     return cal;
00141   }
00142   return 0;
00143 }
00144 
00145 Calendar *DndFactory::createDropCalendar( QDropEvent *de )
00146 {
00147   Calendar *cal = createDropCalendar( de->mimeData() );
00148   if ( cal ) {
00149     de->accept();
00150     return cal;
00151   }
00152   return 0;
00153 }
00154 
00155 Event *DndFactory::createDropEvent( const QMimeData *md )
00156 {
00157   kDebug();
00158   Event *ev = 0;
00159   Calendar *cal = createDropCalendar( md );
00160 
00161   if ( cal ) {
00162     Event::List events = cal->events();
00163     if ( !events.isEmpty() ) {
00164       ev = new Event( *events.first() );
00165     }
00166     delete cal;
00167   }
00168   return ev;
00169 }
00170 
00171 Event *DndFactory::createDropEvent( QDropEvent *de )
00172 {
00173   Event *ev = createDropEvent( de->mimeData() );
00174 
00175   if ( ev ) {
00176     de->accept();
00177   }
00178 
00179   return ev;
00180 }
00181 
00182 Todo *DndFactory::createDropTodo( const QMimeData *md )
00183 {
00184   kDebug();
00185   Todo *todo = 0;
00186   Calendar *cal = createDropCalendar( md );
00187 
00188   if ( cal ) {
00189     Todo::List todos = cal->todos();
00190     if ( !todos.isEmpty() ) {
00191       todo = new Todo( *todos.first() );
00192     }
00193     delete cal;
00194   }
00195 
00196   return todo;
00197 }
00198 
00199 Todo *DndFactory::createDropTodo( QDropEvent *de )
00200 {
00201   Todo *todo = createDropTodo( de->mimeData() );
00202 
00203   if ( todo ) {
00204     de->accept();
00205   }
00206 
00207   return todo;
00208 }
00209 
00210 void DndFactory::cutIncidence( Incidence *selectedInc )
00211 {
00212   if ( copyIncidence( selectedInc ) ) {
00213     d->mCalendar->deleteIncidence( selectedInc );
00214   }
00215 }
00216 
00217 bool DndFactory::copyIncidence( Incidence *selectedInc )
00218 {
00219   if ( !selectedInc ) {
00220     return false;
00221   }
00222 
00223   QClipboard *cb = QApplication::clipboard();
00224 
00225   CalendarLocal cal( d->mCalendar->timeSpec() );
00226   Incidence *inc = selectedInc->clone();
00227   cal.addIncidence( inc );
00228 
00229   QMimeData *mimeData = new QMimeData;
00230   cb->setMimeData( mimeData );
00231 
00232   ICalDrag::populateMimeData( mimeData, &cal );
00233   VCalDrag::populateMimeData( mimeData, &cal );
00234 
00235   return true;
00236 }
00237 
00238 Incidence *DndFactory::pasteIncidence( const QDate &newDate, const QTime *newTime )
00239 {
00240   QClipboard *cb = QApplication::clipboard();
00241   Calendar *cal = createDropCalendar( cb->mimeData() );
00242 
00243   if ( !cal ) {
00244     kDebug() << "Can't parse clipboard";
00245     return 0;
00246   }
00247   Incidence *ret = 0;
00248 
00249   Incidence::List incList = cal->incidences();
00250   Incidence *inc = incList.first();
00251 
00252   if ( !incList.isEmpty() && inc ) {
00253     inc = inc->clone();
00254 
00255     inc->recreate();
00256 
00257     if ( inc->type() == "Event" ) {
00258 
00259       Event *anEvent = static_cast<Event*>( inc );
00260       // Calculate length of event
00261       int daysOffset = anEvent->dtStart().date().daysTo(
00262         anEvent->dtEnd().date() );
00263       // new end date if event starts at the same time on the new day
00264       KDateTime endDate( anEvent->dtEnd() );
00265       endDate.setDate( newDate.addDays(daysOffset) );
00266 
00267       KDateTime startDate( anEvent->dtStart() );
00268       startDate.setDate( newDate );
00269       if ( newTime ) {
00270         // additional offset for new time of day
00271         int addSecsOffset( anEvent->dtStart().time().secsTo( *newTime ) );
00272         endDate=endDate.addSecs( addSecsOffset );
00273         startDate.setTime( *newTime );
00274       }
00275       anEvent->setDtStart( startDate );
00276       anEvent->setDtEnd( endDate );
00277 
00278     } else if ( inc->type() == "Todo" ) {
00279       Todo *anTodo = static_cast<Todo*>( inc );
00280       KDateTime dueDate( anTodo->dtDue() );
00281       dueDate.setDate( newDate );
00282       if ( newTime ) {
00283         dueDate.setTime( *newTime );
00284       }
00285       anTodo->setDtDue( dueDate );
00286     } else if ( inc->type() == "Journal" ) {
00287       Journal *anJournal = static_cast<Journal*>( inc );
00288       KDateTime startDate( anJournal->dtStart() );
00289       startDate.setDate( newDate );
00290       if ( newTime ) {
00291         startDate.setTime( *newTime );
00292       } else {
00293         startDate.setTime( QTime( 0, 0, 0 ) );
00294       }
00295       anJournal->setDtStart( startDate );
00296     } else {
00297       kDebug() << "Trying to paste unknown incidence of type" << inc->type();
00298     }
00299 
00300     ret = inc;
00301   }
00302   delete cal;
00303   return ret;
00304 }

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