aboutsummaryrefslogtreecommitdiffstats
path: root/doc/codesnippets/doc/src/snippets/separations/finalwidget.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'doc/codesnippets/doc/src/snippets/separations/finalwidget.cpp')
-rw-r--r--doc/codesnippets/doc/src/snippets/separations/finalwidget.cpp127
1 files changed, 127 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/separations/finalwidget.cpp b/doc/codesnippets/doc/src/snippets/separations/finalwidget.cpp
new file mode 100644
index 000000000..9e5538632
--- /dev/null
+++ b/doc/codesnippets/doc/src/snippets/separations/finalwidget.cpp
@@ -0,0 +1,127 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this 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, this 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 this 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 this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this 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 this 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*
+finalwidget.cpp
+
+A widget to display an image and a label containing a description.
+*/
+
+#include <QtGui>
+#include "finalwidget.h"
+
+FinalWidget::FinalWidget(QWidget *parent, const QString &name,
+ const QSize &labelSize)
+ : QFrame(parent)
+{
+ hasImage = false;
+ imageLabel = new QLabel;
+ imageLabel->setFrameShadow(QFrame::Sunken);
+ imageLabel->setFrameShape(QFrame::StyledPanel);
+ imageLabel->setMinimumSize(labelSize);
+ nameLabel = new QLabel(name);
+
+ QVBoxLayout *layout = new QVBoxLayout;
+ layout->addWidget(imageLabel, 1);
+ layout->addWidget(nameLabel, 0);
+ setLayout(layout);
+}
+
+/*!
+ If the mouse moves far enough when the left mouse button is held down,
+ start a drag and drop operation.
+*/
+
+void FinalWidget::mouseMoveEvent(QMouseEvent *event)
+{
+ if (!(event->buttons() & Qt::LeftButton))
+ return;
+ if ((event->pos() - dragStartPosition).manhattanLength()
+ < QApplication::startDragDistance())
+ return;
+ if (!hasImage)
+ return;
+
+ QDrag *drag = new QDrag(this);
+ QMimeData *mimeData = new QMimeData;
+
+//! [0]
+ output = QByteArray()
+ outputBuffer = QBuffer(output)
+ outputBuffer.open(QIODevice.WriteOnly)
+ imageLabel.pixmap().toImage().save(outputBuffer, "PNG")
+ mimeData.setData("image/png", output)
+//! [0]
+/*
+//! [1]
+ mimeData.setImageData(QVariant(imageLabel.pixmap()))
+//! [1]
+*/
+ drag.setMimeData(mimeData)
+ drag.setPixmap(imageLabel.pixmap().scaled(64, 64, Qt.KeepAspectRatio))
+//! [2]
+ drag.setHotSpot(QPoint(drag.pixmap().width()/2,
+ drag.pixmap().height()))
+//! [2]
+
+ drag->start();
+}
+
+/*!
+ Check for left mouse button presses in order to enable drag and drop.
+*/
+
+void FinalWidget::mousePressEvent(QMouseEvent *event)
+{
+ if (event->button() == Qt::LeftButton)
+ dragStartPosition = event->pos();
+}
+
+const QPixmap* FinalWidget::pixmap() const
+{
+ return imageLabel->pixmap();
+}
+
+void FinalWidget::setPixmap(const QPixmap &pixmap)
+{
+ imageLabel->setPixmap(pixmap);
+ hasImage = true;
+}