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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 09:18:55 (GMT)
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 09:18:55 (GMT)
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/draganddrop/delayedencoding
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Long live Qt 4.5!
Diffstat (limited to 'examples/draganddrop/delayedencoding')
-rw-r--r--examples/draganddrop/delayedencoding/delayedencoding.pro14
-rw-r--r--examples/draganddrop/delayedencoding/delayedencoding.qrc6
-rw-r--r--examples/draganddrop/delayedencoding/images/drag.pngbin0 -> 977 bytes
-rw-r--r--examples/draganddrop/delayedencoding/images/example.svg59
-rw-r--r--examples/draganddrop/delayedencoding/main.cpp52
-rw-r--r--examples/draganddrop/delayedencoding/mimedata.cpp66
-rw-r--r--examples/draganddrop/delayedencoding/mimedata.h64
-rw-r--r--examples/draganddrop/delayedencoding/sourcewidget.cpp115
-rw-r--r--examples/draganddrop/delayedencoding/sourcewidget.h71
9 files changed, 447 insertions, 0 deletions
diff --git a/examples/draganddrop/delayedencoding/delayedencoding.pro b/examples/draganddrop/delayedencoding/delayedencoding.pro
new file mode 100644
index 0000000..c7b95b6
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/delayedencoding.pro
@@ -0,0 +1,14 @@
+QT += svg
+
+HEADERS = mimedata.h \
+ sourcewidget.h
+RESOURCES = delayedencoding.qrc
+SOURCES = main.cpp \
+ mimedata.cpp \
+ sourcewidget.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/draganddrop/delayedencoding
+sources.files = $$SOURCES $$HEADERS *.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/itemviews/delayedencoding
+INSTALLS += target sources
diff --git a/examples/draganddrop/delayedencoding/delayedencoding.qrc b/examples/draganddrop/delayedencoding/delayedencoding.qrc
new file mode 100644
index 0000000..374f211
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/delayedencoding.qrc
@@ -0,0 +1,6 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="">
+ <file>images/drag.png</file>
+ <file>images/example.svg</file>
+</qresource>
+</RCC>
diff --git a/examples/draganddrop/delayedencoding/images/drag.png b/examples/draganddrop/delayedencoding/images/drag.png
new file mode 100644
index 0000000..dd795cf
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/images/drag.png
Binary files differ
diff --git a/examples/draganddrop/delayedencoding/images/example.svg b/examples/draganddrop/delayedencoding/images/example.svg
new file mode 100644
index 0000000..4707cf8
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/images/example.svg
@@ -0,0 +1,59 @@
+<?xml version="1.0" standalone="no"?>
+<!-- ***********************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+************************************************************************ -->
+<svg width="8cm" height="8cm" viewBox="0 0 400 400"
+ xmlns="http://www.w3.org/2000/svg" baseProfile="tiny" version="1.1">
+ <title>Sphere</title>
+ <desc>A gradient filled sphere.</desc>
+ <g>
+ <defs>
+ <radialGradient id="blueSphere" gradientUnits="userSpaceOnUse"
+ cx="200" cy="200" r="100" fx="150" fy="150">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="blue" />
+ <stop offset="100%" stop-color="black" />
+ </radialGradient>
+ </defs>
+ <rect fill="lightblue" x="0" y="0" width="400" height="400" />
+ <circle fill="url(#blueSphere)" stroke="black" stroke-width="2"
+ cx="200" cy="200" r="100"/>
+ </g>
+</svg>
diff --git a/examples/draganddrop/delayedencoding/main.cpp b/examples/draganddrop/delayedencoding/main.cpp
new file mode 100644
index 0000000..801e474
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include "sourcewidget.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ SourceWidget window;
+ window.show();
+ return app.exec();
+}
+
diff --git a/examples/draganddrop/delayedencoding/mimedata.cpp b/examples/draganddrop/delayedencoding/mimedata.cpp
new file mode 100644
index 0000000..5c7c23c
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/mimedata.cpp
@@ -0,0 +1,66 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "mimedata.h"
+
+MimeData::MimeData()
+ : QMimeData()
+{
+}
+
+//![0]
+QStringList MimeData::formats() const
+{
+ return QMimeData::formats() << "image/png";
+}
+//![0]
+
+//![1]
+QVariant MimeData::retrieveData(const QString &mimeType, QVariant::Type type)
+ const
+{
+ emit dataRequested(mimeType);
+
+ return QMimeData::retrieveData(mimeType, type);
+}
+//![1]
+
diff --git a/examples/draganddrop/delayedencoding/mimedata.h b/examples/draganddrop/delayedencoding/mimedata.h
new file mode 100644
index 0000000..13e834d
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/mimedata.h
@@ -0,0 +1,64 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MIMEDATA_H
+#define MIMEDATA_H
+
+#include <QMimeData>
+
+//![0]
+class MimeData : public QMimeData
+{
+ Q_OBJECT
+
+public:
+ MimeData();
+ QStringList formats() const;
+
+signals:
+ void dataRequested(const QString &mimeType) const;
+
+protected:
+ QVariant retrieveData(const QString &mimetype, QVariant::Type type) const;
+};
+//![0]
+
+#endif
diff --git a/examples/draganddrop/delayedencoding/sourcewidget.cpp b/examples/draganddrop/delayedencoding/sourcewidget.cpp
new file mode 100644
index 0000000..f5aed89
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/sourcewidget.cpp
@@ -0,0 +1,115 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtSvg>
+#include "mimedata.h"
+#include "sourcewidget.h"
+
+SourceWidget::SourceWidget(QWidget *parent)
+ : QWidget(parent)
+{
+ QFile imageFile(":/images/example.svg");
+ imageFile.open(QIODevice::ReadOnly);
+ imageData = imageFile.readAll();
+ imageFile.close();
+
+ QScrollArea *imageArea = new QScrollArea;
+ imageLabel = new QSvgWidget;
+ imageLabel->renderer()->load(imageData);
+ imageArea->setWidget(imageLabel);
+ //imageLabel->setMinimumSize(imageLabel->renderer()->viewBox().size());
+
+ QLabel *instructTopLabel = new QLabel(tr("This is an SVG drawing:"));
+ QLabel *instructBottomLabel = new QLabel(
+ tr("Drag the icon to copy the drawing as a PNG file:"));
+ QPushButton *dragIcon = new QPushButton(tr("Export"));
+ dragIcon->setIcon(QIcon(":/images/drag.png"));
+
+ connect(dragIcon, SIGNAL(pressed()), this, SLOT(startDrag()));
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(instructTopLabel, 0, 0, 1, 2);
+ layout->addWidget(imageArea, 1, 0, 2, 2);
+ layout->addWidget(instructBottomLabel, 3, 0);
+ layout->addWidget(dragIcon, 3, 1);
+ setLayout(layout);
+ setWindowTitle(tr("Delayed Encoding"));
+}
+
+//![1]
+void SourceWidget::createData(const QString &mimeType)
+{
+ if (mimeType != "image/png")
+ return;
+
+ QImage image(imageLabel->size(), QImage::Format_RGB32);
+ QPainter painter;
+ painter.begin(&image);
+ imageLabel->renderer()->render(&painter);
+ painter.end();
+
+ QByteArray data;
+ QBuffer buffer(&data);
+ buffer.open(QIODevice::WriteOnly);
+ image.save(&buffer, "PNG");
+ buffer.close();
+
+ mimeData->setData("image/png", data);
+}
+//![1]
+
+//![0]
+void SourceWidget::startDrag()
+{
+ mimeData = new MimeData;
+
+ connect(mimeData, SIGNAL(dataRequested(const QString &)),
+ this, SLOT(createData(const QString &)), Qt::DirectConnection);
+
+ QDrag *drag = new QDrag(this);
+ drag->setMimeData(mimeData);
+ drag->setPixmap(QPixmap(":/images/drag.png"));
+
+ drag->exec(Qt::CopyAction);
+}
+//![0]
+
diff --git a/examples/draganddrop/delayedencoding/sourcewidget.h b/examples/draganddrop/delayedencoding/sourcewidget.h
new file mode 100644
index 0000000..8d6a690
--- /dev/null
+++ b/examples/draganddrop/delayedencoding/sourcewidget.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SOURCEWIDGET_H
+#define SOURCEWIDGET_H
+
+#include <QByteArray>
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QSvgWidget;
+QT_END_NAMESPACE
+class MimeData;
+
+class SourceWidget : public QWidget
+{
+ Q_OBJECT
+
+public:
+ SourceWidget(QWidget *parent = 0);
+//![0]
+public slots:
+ void createData(const QString &mimetype);
+ void startDrag();
+
+private:
+ QByteArray imageData;
+ QSvgWidget *imageLabel;
+ MimeData *mimeData;
+//![0]
+};
+
+#endif