apps/konqueror/src/konqdraggablelabel.cpp

   1 /* This file is part of the KDE project
   2    Copyright 2002 John Firebaugh <jfirebaugh@kde.org>
   3
   4    This program is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU General Public
   6    License as published by the Free Software Foundation; either
   7    version 2 of the License, or (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12     General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; see the file COPYING.  If not, write to
  16    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17    Boston, MA 02110-1301, USA.
  18 */
  19
  20 #include "konqdraggablelabel.h"
  21 #include "konqmainwindow.h"
  22 #include "konqview.h"
  23 #include <QMouseEvent>
  24 #include <QApplication>
  25
  26
  27 KonqDraggableLabel::KonqDraggableLabel( KonqMainWindow* mw, const QString& text )
  28   : QLabel( text )
  29   , m_mw(mw)
  30 {
  31   setBackgroundRole( QPalette::Button );
  32   setAlignment( (QApplication::isRightToLeft() ? Qt::AlignRight : Qt::AlignLeft) |
  33                  Qt::AlignVCenter );
  34   setAcceptDrops(true);
  35   adjustSize();
  36   validDrag = false;
  37 }
  38
  39 void KonqDraggableLabel::mousePressEvent( QMouseEvent * ev )
  40 {
  41   validDrag = true;
  42   startDragPos = ev->pos();
  43 }
  44
  45 void KonqDraggableLabel::mouseMoveEvent( QMouseEvent * ev )
  46 {
  47   if ((startDragPos - ev->pos()).manhattanLength() > QApplication::startDragDistance())
  48   {
  49     validDrag = false;
  50     if ( m_mw->currentView() )
  51     {
  52       KUrl::List lst;
  53       lst.append( m_mw->currentView()->url() );
  54       QDrag* drag = new QDrag( m_mw );
  55       QMimeData* md = new QMimeData();
  56       lst.populateMimeData( md );
  57       drag->setMimeData( md );
  58       QString iconName = KMimeType::iconNameForUrl( lst.first() );
  59
  60       drag->setPixmap(KIconLoader::global()->loadMimeTypeIcon(iconName, KIconLoader::Small));
  61
  62       drag->start();
  63     }
  64   }
  65 }
  66
  67 void KonqDraggableLabel::mouseReleaseEvent( QMouseEvent * )
  68 {
  69   validDrag = false;
  70 }
  71
  72 void KonqDraggableLabel::dragEnterEvent( QDragEnterEvent *ev )
  73 {
  74   if ( KUrl::List::canDecode( ev->mimeData() ) )
  75     ev->accept();
  76 }
  77
  78 void KonqDraggableLabel::dropEvent( QDropEvent* ev )
  79 {
  80     _savedLst.clear();
  81     _savedLst = KUrl::List::fromMimeData( ev->mimeData() );
  82     if ( !_savedLst.isEmpty() ) {
  83         QMetaObject::invokeMethod(this, "delayedOpenURL", Qt::QueuedConnection);
  84     }
  85 }
  86
  87 void KonqDraggableLabel::delayedOpenURL()
  88 {
  89     m_mw->openUrl( 0L, _savedLst.first() );
  90 }
  91