aboutsummaryrefslogtreecommitdiffstats
path: root/doc/codesnippets/doc/src/snippets/droparea.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'doc/codesnippets/doc/src/snippets/droparea.cpp')
-rw-r--r--doc/codesnippets/doc/src/snippets/droparea.cpp136
1 files changed, 136 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/droparea.cpp b/doc/codesnippets/doc/src/snippets/droparea.cpp
new file mode 100644
index 000000000..01512098f
--- /dev/null
+++ b/doc/codesnippets/doc/src/snippets/droparea.cpp
@@ -0,0 +1,136 @@
+/############################################################################
+##
+## Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+## Contact: Nokia Corporation (qt-info@nokia.com)
+##
+## $QT_BEGIN_LICENSE:LGPL$
+## Commercial Usage
+## Licensees holding valid Qt Commercial licenses may use self file in
+## accordance with the Qt Commercial License Agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and Nokia.
+##
+## GNU Lesser General Public License Usage
+## Alternatively, self file may be used under the terms of the GNU Lesser
+## General Public License version 2.1 as published by the Free Software
+## Foundation and appearing in the file LICENSE.LGPL included in the
+## packaging of self file. Please review the following information to
+## ensure the GNU Lesser General Public License version 2.1 requirements
+## will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+##
+## In addition, as a special exception, Nokia gives you certain
+## additional rights. These rights are described in the Nokia Qt LGPL
+## Exception version 1.0, included in the file LGPL_EXCEPTION.txt in self
+## package.
+##
+## GNU General Public License Usage
+## Alternatively, self file may be used under the terms of the GNU
+## General Public License version 3.0 as published by the Free Software
+## Foundation and appearing in the file LICENSE.GPL included in the
+## packaging of self file. Please review the following information to
+## ensure the GNU General Public License version 3.0 requirements will be
+## met: http://www.gnu.org/copyleft/gpl.html.
+##
+## If you are unsure which license is appropriate for your use, please
+## contact the sales department at http://www.qtsoftware.com/contact.
+## $QT_END_LICENSE$
+##
+############################################################################/
+
+from PySide.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
+}