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# mtoolbutton.py ---
#
# Filename: mtoolbutton.py
# Description: Subclass of QToolButton to allow drag and drop
# Author:
# Maintainer:
# Created: Fri Jun 14 14:24:11 2013 (+0530)
# Version:
# Last-Updated: Fri Jun 14 16:28:51 2013 (+0530)
# By: subha
# Update #: 89
# URL:
# Keywords:
# Compatibility:
#
#
# Commentary:
#
#
#
#
# Change log:
#
#
#
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 3, or
# (at your option) any later version.
#
# This program 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
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth
# Floor, Boston, MA 02110-1301, USA.
#
#
# Code:
import sys
from PyQt4 import QtGui, QtCore
from PyQt4.Qt import Qt
class MToolButton(QtGui.QToolButton):
"""QToolButton subclass with dragEvent reimplemented. It sends the
text of the ToolButton as the mimedata.
"""
def __init__(self, *args):
QtGui.QToolButton.__init__(self, *args)
self.dragStartPosition = QtCore.QPoint(0,0)
def mousePressEvent(self, event):
if event.buttons() & Qt.LeftButton:
self.dragStartPosition = event.pos()
def mouseMoveEvent(self, event):
if not (event.buttons() & Qt.LeftButton):
return
if (event.pos() - self.dragStartPosition).manhattanLength() < QtGui.QApplication.startDragDistance():
return
drag = QtGui.QDrag(self)
mimeData = QtCore.QMimeData()
mimeData.setText(self.text())
drag.setMimeData(mimeData)
# print '1111', mimeData.text()
dropAction = drag.exec_(Qt.CopyAction)
class MyWidget(QtGui.QTextBrowser):
"""Class for testing the drag and drop ability of MToolButton"""
def __init__(self, *args):
QtGui.QTextBrowser.__init__(self, *args)
self.dropCount = 0
self.setPlainText('Drops: %d' % (self.dropCount))
self.setAcceptDrops(True)
def dragEnterEvent(self, event):
print '2222', event.mimeData().text()
if event.mimeData().hasFormat('text/plain'):
event.acceptProposedAction()
print '3333 accepted '
def dragMoveEvent(self, event):
"""This must be reimplemented to accept the event in case of
QTextBrowser. Not needed in QWidgets in general."""
print '4444'
event.acceptProposedAction()
def dropEvent(self, event):
print '5555', event.mimeData().text()
self.dropCount += 1
self.setPlainText('`%s` dropped: %d times' % (event.mimeData().text(), self.dropCount))
event.acceptProposedAction()
QtGui.QTextBrowser.dropEvent(self, event)
def test_main():
"""Test main: see if drag and drop is working"""
app = QtGui.QApplication(sys.argv)
mainwin = QtGui.QMainWindow()
mainwin.setWindowTitle('MTooButton')
toolbar = QtGui.QToolBar()
mainwin.addToolBar(toolbar)
button = MToolButton()
button.setText('test')
toolbar.addWidget(button)
browser = MyWidget(mainwin)
print browser.acceptDrops()
mainwin.setCentralWidget(browser)
mainwin.show()
sys.exit(app.exec_())
if __name__ == '__main__':
test_main()
#
# mtoolbutton.py ends here