aboutsummaryrefslogtreecommitdiffstats
path: root/sources/pyside2/doc/codesnippets/doc/src/snippets/droparea.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'sources/pyside2/doc/codesnippets/doc/src/snippets/droparea.cpp')
-rw-r--r--sources/pyside2/doc/codesnippets/doc/src/snippets/droparea.cpp147
1 files changed, 147 insertions, 0 deletions
diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/droparea.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/droparea.cpp
new file mode 100644
index 000000000..160064627
--- /dev/null
+++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/droparea.cpp
@@ -0,0 +1,147 @@
+############################################################################
+##
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the examples of PySide2.
+##
+## $QT_BEGIN_LICENSE:BSD$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## BSD License Usage
+## Alternatively, you may use this file under the terms of the BSD license
+## as follows:
+##
+## "Redistribution and use in source and binary forms, with or without
+## modification, are permitted provided that the following conditions are
+## met:
+## * Redistributions of source code must retain the above copyright
+## notice, this list of conditions and the following disclaimer.
+## * Redistributions in binary form must reproduce the above copyright
+## notice, this list of conditions and the following disclaimer in
+## the documentation and/or other materials provided with the
+## distribution.
+## * Neither the name of The Qt Company Ltd nor the names of its
+## contributors may be used to endorse or promote products derived
+## from this software without specific prior written permission.
+##
+##
+## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+##
+## $QT_END_LICENSE$
+##
+############################################################################
+
+from PySide2.QtGui import *
+
+
+DropArea.DropArea(QWidget *parent)
+ : QLabel(parent)
+{
+ setMinimumSize(200, 200)
+ setFrameStyle(QFrame.Sunken | QFrame::StyledPanel)
+ setAlignment(Qt.AlignCenter)
+ setAcceptDrops(True)
+ setAutoFillBackground(True)
+ clear()
+}
+
+void DropArea.dragEnterEvent(QDragEnterEvent *event)
+{
+ setText(tr("<drop content>"))
+ setBackgroundRole(QPalette.Highlight)
+
+ event.acceptProposedAction()
+ emit changed(event.mimeData())
+}
+
+void DropArea.dragMoveEvent(QDragMoveEvent *event)
+{
+ event.acceptProposedAction()
+}
+
+void DropArea.dropEvent(QDropEvent *event)
+{
+ const QMimeData *mimeData = event.mimeData()
+
+ if (mimeData.hasImage()) {
+ setPixmap(qvariant_cast<QPixmap>(mimeData.imageData()))
+ } else if (mimeData.hasHtml()) {
+ setText(mimeData.html())
+ setTextFormat(Qt.RichText)
+ } else if (mimeData.hasText()) {
+ setText(mimeData.text())
+ setTextFormat(Qt.PlainText)
+ } else {
+ setText(tr("Cannot display data"))
+ }
+
+ setBackgroundRole(QPalette.Dark)
+ event.acceptProposedAction()
+}
+
+//![0]
+def paste(self):
+ clipboard = QApplication.clipboard()
+ mimeData = clipboard.mimeData()
+
+ if mimeData.hasImage():
+ setPixmap(mimeData.imageData())
+ elif mimeData.hasHtml():
+ setText(mimeData.html())
+ setTextFormat(Qt.RichText)
+ elif (mimeData.hasText():
+ setText(mimeData.text())
+ setTextFormat(Qt.PlainText)
+ else:
+ setText(tr("Cannot display data"))
+//![0]
+
+ emit changed(mimeData)
+ setBackgroundRole(QPalette.Dark)
+ //event.acceptProposedAction()
+}
+
+void DropArea.dragLeaveEvent(QDragLeaveEvent *event)
+{
+ clear()
+ event.accept()
+}
+
+void DropArea.clear()
+{
+ setText(tr("<drop content>"))
+ setBackgroundRole(QPalette.Dark)
+
+ emit changed()
+}
+
+QPixmap DropArea.extractPixmap(const QByteArray &data, const QString &format)
+{
+ QList<QByteArray> imageFormats = QImageReader.supportedImageFormats()
+ QPixmap pixmap
+
+ foreach (QByteArray imageFormat, imageFormats) {
+ if (format.mid(6) == QString(imageFormat)) {
+ pixmap.loadFromData(data, imageFormat)
+ break
+ }
+ }
+ return pixmap
+}