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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   return createDropCalendar( md, d->mCalendar->timeSpec() );
00137 }
00138 
00139 Calendar *DndFactory::createDropCalendar( const QMimeData *md, const KDateTime::Spec &timeSpec )
00140 {
00141   Calendar *cal = new CalendarLocal( timeSpec );
00142 
00143   if ( ICalDrag::fromMimeData( md, cal ) ||
00144        VCalDrag::fromMimeData( md, cal ) ){
00145     return cal;
00146   }
00147   delete cal;
00148   return 0;
00149 }
00150 
00151 Calendar *DndFactory::createDropCalendar( QDropEvent *de )
00152 {
00153   Calendar *cal = createDropCalendar( de->mimeData() );
00154   if ( cal ) {
00155     de->accept();
00156     return cal;
00157   }
00158   return 0;
00159 }
00160 
00161 Event *DndFactory::createDropEvent( const QMimeData *md )
00162 {
00163   kDebug();
00164   Event *ev = 0;
00165   Calendar *cal = createDropCalendar( md );
00166 
00167   if ( cal ) {
00168     Event::List events = cal->events();
00169     if ( !events.isEmpty() ) {
00170       ev = new Event( *events.first() );
00171     }
00172     delete cal;
00173   }
00174   return ev;
00175 }
00176 
00177 Event *DndFactory::createDropEvent( QDropEvent *de )
00178 {
00179   Event *ev = createDropEvent( de->mimeData() );
00180 
00181   if ( ev ) {
00182     de->accept();
00183   }
00184 
00185   return ev;
00186 }
00187 
00188 Todo *DndFactory::createDropTodo( const QMimeData *md )
00189 {
00190   kDebug();
00191   Todo *todo = 0;
00192   Calendar *cal = createDropCalendar( md );
00193 
00194   if ( cal ) {
00195     Todo::List todos = cal->todos();
00196     if ( !todos.isEmpty() ) {
00197       todo = new Todo( *todos.first() );
00198     }
00199     delete cal;
00200   }
00201 
00202   return todo;
00203 }
00204 
00205 Todo *DndFactory::createDropTodo( QDropEvent *de )
00206 {
00207   Todo *todo = createDropTodo( de->mimeData() );
00208 
00209   if ( todo ) {
00210     de->accept();
00211   }
00212 
00213   return todo;
00214 }
00215 
00216 void DndFactory::cutIncidence( Incidence *selectedInc )
00217 {
00218   if ( copyIncidence( selectedInc ) ) {
00219     d->mCalendar->deleteIncidence( selectedInc );
00220   }
00221 }
00222 
00223 bool DndFactory::copyIncidence( Incidence *selectedInc )
00224 {
00225   if ( !selectedInc ) {
00226     return false;
00227   }
00228 
00229   QClipboard *cb = QApplication::clipboard();
00230 
00231   CalendarLocal cal( d->mCalendar->timeSpec() );
00232   Incidence *inc = selectedInc->clone();
00233   cal.addIncidence( inc );
00234 
00235   QMimeData *mimeData = new QMimeData;
00236   cb->setMimeData( mimeData );
00237 
00238   ICalDrag::populateMimeData( mimeData, &cal );
00239   VCalDrag::populateMimeData( mimeData, &cal );
00240 
00241   return true;
00242 }
00243 
00244 Incidence *DndFactory::pasteIncidence( const QDate &newDate, const QTime *newTime )
00245 {
00246   QClipboard *cb = QApplication::clipboard();
00247   Calendar *cal = createDropCalendar( cb->mimeData() );
00248 
00249   if ( !cal ) {
00250     kDebug() << "Can't parse clipboard";
00251     return 0;
00252   }
00253 
00254   Incidence::List incList = cal->incidences();
00255   Incidence *inc = incList.isEmpty() ? 0 : incList.first();
00256 
00257   if ( inc ) {
00258     inc = inc->clone();
00259     inc->recreate();
00260   }
00261 
00262   if ( inc && newDate.isValid() ) {
00263     if ( inc->type() == "Event" ) {
00264       Event *anEvent = static_cast<Event*>( inc );
00265       // Calculate length of event
00266       int daysOffset = anEvent->dtStart().date().daysTo(
00267         anEvent->dtEnd().date() );
00268       // new end date if event starts at the same time on the new day
00269       KDateTime endDate( anEvent->dtEnd() );
00270       endDate.setDate( newDate.addDays( daysOffset ) );
00271 
00272       KDateTime startDate( anEvent->dtStart() );
00273       startDate.setDate( newDate );
00274       if ( newTime ) {
00275         // additional offset for new time of day
00276         int addSecsOffset( anEvent->dtStart().time().secsTo( *newTime ) );
00277         endDate=endDate.addSecs( addSecsOffset );
00278         startDate.setTime( *newTime );
00279       }
00280       anEvent->setDtStart( startDate );
00281       anEvent->setDtEnd( endDate );
00282 
00283     } else if ( inc->type() == "Todo" ) {
00284       Todo *anTodo = static_cast<Todo*>( inc );
00285       KDateTime dueDate( anTodo->dtDue() );
00286       dueDate.setDate( newDate );
00287       if ( newTime ) {
00288         dueDate.setTime( *newTime );
00289       }
00290       anTodo->setDtDue( dueDate );
00291     } else if ( inc->type() == "Journal" ) {
00292       Journal *anJournal = static_cast<Journal*>( inc );
00293       KDateTime startDate( anJournal->dtStart() );
00294       startDate.setDate( newDate );
00295       if ( newTime ) {
00296         startDate.setTime( *newTime );
00297       } else {
00298         startDate.setTime( QTime( 0, 0, 0 ) );
00299       }
00300       anJournal->setDtStart( startDate );
00301     } else {
00302       kDebug() << "Trying to paste unknown incidence of type" << inc->type();
00303     }
00304   }
00305   delete cal;
00306   return inc;
00307 }

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