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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 10:18:55 +0100
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 10:18:55 +0100
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/draganddrop/dropsite
Long live Qt 4.5!
Diffstat (limited to 'examples/draganddrop/dropsite')
-rw-r--r--examples/draganddrop/dropsite/droparea.cpp127
-rw-r--r--examples/draganddrop/dropsite/droparea.h78
-rw-r--r--examples/draganddrop/dropsite/dropsite.pro12
-rw-r--r--examples/draganddrop/dropsite/dropsitewindow.cpp146
-rw-r--r--examples/draganddrop/dropsite/dropsitewindow.h78
-rw-r--r--examples/draganddrop/dropsite/main.cpp54
6 files changed, 495 insertions, 0 deletions
diff --git a/examples/draganddrop/dropsite/droparea.cpp b/examples/draganddrop/dropsite/droparea.cpp
new file mode 100644
index 0000000000..495e2bfe3e
--- /dev/null
+++ b/examples/draganddrop/dropsite/droparea.cpp
@@ -0,0 +1,127 @@
+/****************************************************************************
+**
+** 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 "droparea.h"
+
+//! [DropArea constructor]
+DropArea::DropArea(QWidget *parent)
+ : QLabel(parent)
+{
+ setMinimumSize(200, 200);
+ setFrameStyle(QFrame::Sunken | QFrame::StyledPanel);
+ setAlignment(Qt::AlignCenter);
+ setAcceptDrops(true);
+ setAutoFillBackground(true);
+ clear();
+}
+//! [DropArea constructor]
+
+//! [dragEnterEvent() function]
+void DropArea::dragEnterEvent(QDragEnterEvent *event)
+{
+ setText(tr("<drop content>"));
+ setBackgroundRole(QPalette::Highlight);
+
+ event->acceptProposedAction();
+ emit changed(event->mimeData());
+}
+//! [dragEnterEvent() function]
+
+//! [dragMoveEvent() function]
+void DropArea::dragMoveEvent(QDragMoveEvent *event)
+{
+ event->acceptProposedAction();
+}
+//! [dragMoveEvent() function]
+
+//! [dropEvent() function part1]
+void DropArea::dropEvent(QDropEvent *event)
+{
+ const QMimeData *mimeData = event->mimeData();
+//! [dropEvent() function part1]
+
+//! [dropEvent() function part2]
+ 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 if (mimeData->hasUrls()) {
+ QList<QUrl> urlList = mimeData->urls();
+ QString text;
+ for (int i = 0; i < urlList.size() && i < 32; ++i) {
+ QString url = urlList.at(i).path();
+ text += url + QString("\n");
+ }
+ setText(text);
+ } else {
+ setText(tr("Cannot display data"));
+ }
+//! [dropEvent() function part2]
+
+//! [dropEvent() function part3]
+ setBackgroundRole(QPalette::Dark);
+ event->acceptProposedAction();
+}
+//! [dropEvent() function part3]
+
+//! [dragLeaveEvent() function]
+void DropArea::dragLeaveEvent(QDragLeaveEvent *event)
+{
+ clear();
+ event->accept();
+}
+//! [dragLeaveEvent() function]
+
+//! [clear() function]
+void DropArea::clear()
+{
+ setText(tr("<drop content>"));
+ setBackgroundRole(QPalette::Dark);
+
+ emit changed();
+}
+//! [clear() function]
diff --git a/examples/draganddrop/dropsite/droparea.h b/examples/draganddrop/dropsite/droparea.h
new file mode 100644
index 0000000000..8a40acccda
--- /dev/null
+++ b/examples/draganddrop/dropsite/droparea.h
@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** 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 DROPAREA_H
+#define DROPAREA_H
+
+#include <QLabel>
+
+QT_BEGIN_NAMESPACE
+class QMimeData;
+QT_END_NAMESPACE
+
+//! [DropArea header part1]
+class DropArea : public QLabel
+{
+ Q_OBJECT
+
+public:
+ DropArea(QWidget *parent = 0);
+
+public slots:
+ void clear();
+
+signals:
+ void changed(const QMimeData *mimeData = 0);
+//! [DropArea header part1]
+
+//! [DropArea header part2]
+protected:
+ void dragEnterEvent(QDragEnterEvent *event);
+ void dragMoveEvent(QDragMoveEvent *event);
+ void dragLeaveEvent(QDragLeaveEvent *event);
+ void dropEvent(QDropEvent *event);
+
+private:
+ QLabel *label;
+};
+//! [DropArea header part2]
+
+#endif
diff --git a/examples/draganddrop/dropsite/dropsite.pro b/examples/draganddrop/dropsite/dropsite.pro
new file mode 100644
index 0000000000..29dd0fdb4d
--- /dev/null
+++ b/examples/draganddrop/dropsite/dropsite.pro
@@ -0,0 +1,12 @@
+HEADERS = droparea.h \
+ dropsitewindow.h
+SOURCES = droparea.cpp \
+ dropsitewindow.cpp \
+ main.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/draganddrop/dropsite
+sources.files = $$SOURCES $$HEADERS $$RESOURCES *.pro images
+sources.path = $$[QT_INSTALL_EXAMPLES]/draganddrop/dropsite
+INSTALLS += target sources
+
diff --git a/examples/draganddrop/dropsite/dropsitewindow.cpp b/examples/draganddrop/dropsite/dropsitewindow.cpp
new file mode 100644
index 0000000000..6e7055b8b6
--- /dev/null
+++ b/examples/draganddrop/dropsite/dropsitewindow.cpp
@@ -0,0 +1,146 @@
+/****************************************************************************
+**
+** 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 "droparea.h"
+#include "dropsitewindow.h"
+
+//! [constructor part1]
+DropSiteWindow::DropSiteWindow()
+{
+ abstractLabel = new QLabel(tr("This example accepts drags from other "
+ "applications and displays the MIME types "
+ "provided by the drag object."));
+ abstractLabel->setWordWrap(true);
+ abstractLabel->adjustSize();
+//! [constructor part1]
+
+//! [constructor part2]
+ dropArea = new DropArea;
+ connect(dropArea, SIGNAL(changed(const QMimeData *)),
+ this, SLOT(updateFormatsTable(const QMimeData *)));
+//! [constructor part2]
+
+//! [constructor part3]
+ QStringList labels;
+ labels << tr("Format") << tr("Content");
+
+ formatsTable = new QTableWidget;
+ formatsTable->setColumnCount(2);
+ formatsTable->setEditTriggers(QAbstractItemView::NoEditTriggers);
+ formatsTable->setHorizontalHeaderLabels(labels);
+ formatsTable->horizontalHeader()->setStretchLastSection(true);
+//! [constructor part3]
+
+//! [constructor part4]
+ clearButton = new QPushButton(tr("Clear"));
+ quitButton = new QPushButton(tr("Quit"));
+
+ buttonBox = new QDialogButtonBox;
+ buttonBox->addButton(clearButton, QDialogButtonBox::ActionRole);
+ buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
+
+ connect(quitButton, SIGNAL(pressed()), this, SLOT(close()));
+ connect(clearButton, SIGNAL(pressed()), dropArea, SLOT(clear()));
+//! [constructor part4]
+
+//! [constructor part5]
+ QVBoxLayout *mainLayout = new QVBoxLayout;
+ mainLayout->addWidget(abstractLabel);
+ mainLayout->addWidget(dropArea);
+ mainLayout->addWidget(formatsTable);
+ mainLayout->addWidget(buttonBox);
+ setLayout(mainLayout);
+
+ setWindowTitle(tr("Drop Site"));
+ setMinimumSize(350, 500);
+}
+//! [constructor part5]
+
+//! [updateFormatsTable() part1]
+void DropSiteWindow::updateFormatsTable(const QMimeData *mimeData)
+{
+ formatsTable->setRowCount(0);
+ if (!mimeData)
+ return;
+//! [updateFormatsTable() part1]
+
+//! [updateFormatsTable() part2]
+ foreach (QString format, mimeData->formats()) {
+ QTableWidgetItem *formatItem = new QTableWidgetItem(format);
+ formatItem->setFlags(Qt::ItemIsEnabled);
+ formatItem->setTextAlignment(Qt::AlignTop | Qt::AlignLeft);
+//! [updateFormatsTable() part2]
+
+//! [updateFormatsTable() part3]
+ QString text;
+ if (format == "text/plain") {
+ text = mimeData->text().simplified();
+ } else if (format == "text/html") {
+ text = mimeData->html().simplified();
+ } else if (format == "text/uri-list") {
+ QList<QUrl> urlList = mimeData->urls();
+ for (int i = 0; i < urlList.size() && i < 32; ++i) {
+ QString url = urlList.at(i).path();
+ text.append(url + " ");
+ }
+ } else {
+ QByteArray data = mimeData->data(format);
+ for (int i = 0; i < data.size() && i < 32; ++i) {
+ QString hex = QString("%1").arg(uchar(data[i]), 2, 16,
+ QChar('0'))
+ .toUpper();
+ text.append(hex + " ");
+ }
+ }
+//! [updateFormatsTable() part3]
+
+//! [updateFormatsTable() part4]
+ int row = formatsTable->rowCount();
+ formatsTable->insertRow(row);
+ formatsTable->setItem(row, 0, new QTableWidgetItem(format));
+ formatsTable->setItem(row, 1, new QTableWidgetItem(text));
+ }
+
+ formatsTable->resizeColumnToContents(0);
+}
+//! [updateFormatsTable() part4]
diff --git a/examples/draganddrop/dropsite/dropsitewindow.h b/examples/draganddrop/dropsite/dropsitewindow.h
new file mode 100644
index 0000000000..bbdc687ed3
--- /dev/null
+++ b/examples/draganddrop/dropsite/dropsitewindow.h
@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** 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 DROPSITEWINDOW_H
+#define DROPSITEWINDOW_H
+
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QDialogButtonBox;
+class QLabel;
+class QMimeData;
+class QPushButton;
+class QTableWidget;
+QT_END_NAMESPACE
+class DropArea;
+
+//! [DropSiteWindow header]
+class DropSiteWindow : public QWidget
+{
+ Q_OBJECT
+
+public:
+ DropSiteWindow();
+
+public slots:
+ void updateFormatsTable(const QMimeData *mimeData);
+
+private:
+ DropArea *dropArea;
+ QLabel *abstractLabel;
+ QTableWidget *formatsTable;
+
+ QPushButton *clearButton;
+ QPushButton *quitButton;
+ QDialogButtonBox *buttonBox;
+};
+//! [DropSiteWindow header]
+
+#endif
diff --git a/examples/draganddrop/dropsite/main.cpp b/examples/draganddrop/dropsite/main.cpp
new file mode 100644
index 0000000000..62589ad98c
--- /dev/null
+++ b/examples/draganddrop/dropsite/main.cpp
@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** 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 "dropsitewindow.h"
+
+//! [main() function]
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ DropSiteWindow window;
+ window.show();
+ return app.exec();
+}
+//! [main() function]