examples/draganddrop/dropsite/dropsitewindow.cpp
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/draganddrop/dropsite/dropsitewindow.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,144 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@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)
+                text.append(urlList[i].toString() + " ");
+        } 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]