mirror of https://gitlab.com/openlp/openlp.git
115 lines
4.7 KiB
Python
115 lines
4.7 KiB
Python
# -*- coding: utf-8 -*-
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# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4
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###############################################################################
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# OpenLP - Open Source Lyrics Projection #
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# --------------------------------------------------------------------------- #
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# Copyright (c) 2008-2013 Raoul Snyman #
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# Portions copyright (c) 2008-2013 Tim Bentley, Gerald Britton, Jonathan #
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# Corwin, Samuel Findlay, Michael Gorven, Scott Guerrieri, Matthias Hub, #
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# Meinert Jordan, Armin Köhler, Erik Lundin, Edwin Lunando, Brian T. Meyer. #
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# Joshua Miller, Stevan Pettit, Andreas Preikschat, Mattias Põldaru, #
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# Christian Richter, Philip Ridout, Simon Scudder, Jeffrey Smith, #
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# Maikel Stuivenberg, Martin Thompson, Jon Tibble, Dave Warnock, #
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# Frode Woldsund, Martin Zibricky, Patrick Zimmermann #
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# --------------------------------------------------------------------------- #
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# This program is free software; you can redistribute it and/or modify it #
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# under the terms of the GNU General Public License as published by the Free #
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# Software Foundation; version 2 of the License. #
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# #
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# This program is distributed in the hope that it will be useful, but WITHOUT #
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or #
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for #
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# more details. #
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# #
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# You should have received a copy of the GNU General Public License along #
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# with this program; if not, write to the Free Software Foundation, Inc., 59 #
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# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
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###############################################################################
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"""
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Extend QTreeWidget to handle drag and drop functionality
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"""
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import os
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from PyQt4 import QtCore, QtGui
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from openlp.core.lib import Receiver
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class TreeWidgetWithDnD(QtGui.QTreeWidget):
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"""
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Provide a list widget to store objects and handle drag and drop events
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"""
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def __init__(self, parent=None, name=u''):
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"""
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Initialise the list widget
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"""
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QtGui.QTreeWidget.__init__(self, parent)
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self.mimeDataText = name
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self.header().close()
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self.defaultIndentation = self.indentation()
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self.setIndentation(0)
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assert(self.mimeDataText)
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def activateDnD(self):
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"""
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Activate DnD of widget
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"""
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self.setAcceptDrops(True)
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self.setDragDropMode(QtGui.QAbstractItemView.DragDrop)
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QtCore.QObject.connect(Receiver.get_receiver(), QtCore.SIGNAL(u'%s_dnd' % self.mimeDataText),
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self.parent().loadFile)
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def mouseMoveEvent(self, event):
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"""
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Drag and drop event does not care what data is selected
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as the recipient will use events to request the data move
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just tell it what plugin to call
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"""
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if event.buttons() != QtCore.Qt.LeftButton:
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event.ignore()
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return
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if not self.selectedItems():
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event.ignore()
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return
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drag = QtGui.QDrag(self)
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mimeData = QtCore.QMimeData()
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drag.setMimeData(mimeData)
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mimeData.setText(self.mimeDataText)
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drag.start(QtCore.Qt.CopyAction)
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def dragEnterEvent(self, event):
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if event.mimeData().hasUrls():
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event.accept()
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else:
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event.ignore()
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def dragMoveEvent(self, event):
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if event.mimeData().hasUrls():
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event.setDropAction(QtCore.Qt.CopyAction)
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event.accept()
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else:
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event.ignore()
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def dropEvent(self, event):
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"""
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Receive drop event check if it is a file and process it if it is.
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``event``
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Handle of the event pint passed
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"""
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if event.mimeData().hasUrls():
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event.setDropAction(QtCore.Qt.CopyAction)
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event.accept()
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files = []
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for url in event.mimeData().urls():
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localFile = url.toLocalFile()
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if os.path.isfile(localFile):
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files.append(localFile)
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elif os.path.isdir(localFile):
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listing = os.listdir(localFile)
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for file in listing:
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files.append(os.path.join(localFile, file))
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Receiver.send_message(u'%s_dnd' % self.mimeDataText, files)
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else:
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event.ignore()
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