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181 lines
6.5 KiB
Python
181 lines
6.5 KiB
Python
#!/usr/bin/env python
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#############################################################################
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##
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## Copyright (C) 2013 Riverbank Computing Limited
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## Copyright (C) 2010 Hans-Peter Jansen <hpj@urpla.net>.
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## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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## All rights reserved.
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##
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## This file is part of the examples of PyQt.
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##
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## $QT_BEGIN_LICENSE:BSD$
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## You may use this file under the terms of the BSD license as follows:
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##
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## "Redistribution and use in source and binary forms, with or without
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## modification, are permitted provided that the following conditions are
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## met:
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## * Redistributions of source code must retain the above copyright
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## notice, this list of conditions and the following disclaimer.
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## * Redistributions in binary form must reproduce the above copyright
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## notice, this list of conditions and the following disclaimer in
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## the documentation and/or other materials provided with the
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## distribution.
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## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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## the names of its contributors may be used to endorse or promote
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## products derived from this software without specific prior written
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## permission.
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##
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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## $QT_END_LICENSE$
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##
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#############################################################################
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from PyQt5.QtCore import pyqtSignal, QMimeData, Qt
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from PyQt5.QtGui import QPalette, QPixmap
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from PyQt5.QtWidgets import (QAbstractItemView, QApplication, QDialogButtonBox,
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QFrame, QLabel, QPushButton, QTableWidget, QTableWidgetItem,
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QVBoxLayout, QWidget)
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class DropArea(QLabel):
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changed = pyqtSignal(QMimeData)
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def __init__(self, parent = None):
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super(DropArea, self).__init__(parent)
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self.setMinimumSize(200, 200)
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self.setFrameStyle(QFrame.Sunken | QFrame.StyledPanel)
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self.setAlignment(Qt.AlignCenter)
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self.setAcceptDrops(True)
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self.setAutoFillBackground(True)
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self.clear()
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def dragEnterEvent(self, event):
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self.setText("<drop content>")
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self.setBackgroundRole(QPalette.Highlight)
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event.acceptProposedAction()
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self.changed.emit(event.mimeData())
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def dragMoveEvent(self, event):
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event.acceptProposedAction()
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def dropEvent(self, event):
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mimeData = event.mimeData()
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if mimeData.hasImage():
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self.setPixmap(QPixmap(mimeData.imageData()))
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elif mimeData.hasHtml():
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self.setText(mimeData.html())
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self.setTextFormat(Qt.RichText)
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elif mimeData.hasText():
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self.setText(mimeData.text())
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self.setTextFormat(Qt.PlainText)
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elif mimeData.hasUrls():
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self.setText("\n".join([url.path() for url in mimeData.urls()]))
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else:
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self.setText("Cannot display data")
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self.setBackgroundRole(QPalette.Dark)
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event.acceptProposedAction()
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def dragLeaveEvent(self, event):
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self.clear()
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event.accept()
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def clear(self):
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self.setText("<drop content>")
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self.setBackgroundRole(QPalette.Dark)
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self.changed.emit(None)
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class DropSiteWindow(QWidget):
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def __init__(self):
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super(DropSiteWindow, self).__init__()
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self.abstractLabel = QLabel(
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"This example accepts drags from other applications and "
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"displays the MIME types provided by the drag object.")
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self.abstractLabel.setWordWrap(True)
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self.abstractLabel.adjustSize()
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self.dropArea = DropArea()
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self.dropArea.changed.connect(self.updateFormatsTable)
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self.formatsTable = QTableWidget()
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self.formatsTable.setColumnCount(2)
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self.formatsTable.setEditTriggers(QAbstractItemView.NoEditTriggers)
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self.formatsTable.setHorizontalHeaderLabels(["Format", "Content"])
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self.formatsTable.horizontalHeader().setStretchLastSection(True)
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self.clearButton = QPushButton("Clear")
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self.quitButton = QPushButton("Quit")
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self.buttonBox = QDialogButtonBox()
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self.buttonBox.addButton(self.clearButton, QDialogButtonBox.ActionRole)
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self.buttonBox.addButton(self.quitButton, QDialogButtonBox.RejectRole)
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self.quitButton.pressed.connect(self.close)
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self.clearButton.pressed.connect(self.dropArea.clear)
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mainLayout = QVBoxLayout()
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mainLayout.addWidget(self.abstractLabel)
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mainLayout.addWidget(self.dropArea)
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mainLayout.addWidget(self.formatsTable)
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mainLayout.addWidget(self.buttonBox)
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self.setLayout(mainLayout)
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self.setWindowTitle("Drop Site")
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self.setMinimumSize(350, 500)
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def updateFormatsTable(self, mimeData=None):
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self.formatsTable.setRowCount(0)
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if mimeData is None:
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return
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for format in mimeData.formats():
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formatItem = QTableWidgetItem(format)
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formatItem.setFlags(Qt.ItemIsEnabled)
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formatItem.setTextAlignment(Qt.AlignTop | Qt.AlignLeft)
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if format == 'text/plain':
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text = mimeData.text().strip()
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elif format == 'text/html':
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text = mimeData.html().strip()
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elif format == 'text/uri-list':
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text = " ".join([url.toString() for url in mimeData.urls()])
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else:
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text = " ".join(["%02X" % ord(datum) for datum in mimeData.data(format)])
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row = self.formatsTable.rowCount()
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self.formatsTable.insertRow(row)
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self.formatsTable.setItem(row, 0, QTableWidgetItem(format))
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self.formatsTable.setItem(row, 1, QTableWidgetItem(text))
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self.formatsTable.resizeColumnToContents(0)
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if __name__ == '__main__':
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import sys
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app = QApplication(sys.argv)
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window = DropSiteWindow()
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window.show()
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sys.exit(app.exec_())
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