mainwindow.cpp Example File
image-gallery-cpp/mainwindow.cpp/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** You may use this file under the terms of the BSD license as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include <QtWidgets> #include <QDebug> #include <QFrame> #include <QLabel> #include <QListView> #include <QMenu> #include <QNetworkAccessManager> #include <QPushButton> #include <QTimer> #include <QVBoxLayout> #include <enginioclient.h> #include <enginioreply.h> // To get the backend right, we use a helper class in the example. // Usually one would just insert the backend information below. #include "backendhelper.h" #include "imageobject.h" #include "mainwindow.h" #include "imagemodel.h" MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent) { setWindowTitle(QStringLiteral("Enginio Image Gallery")); m_client = new EnginioClient(this); m_client->setBackendId(backendId("image-gallery")); m_model = new ImageModel(this); m_model->setClient(m_client); m_view = new QListView; m_view->setModel(m_model); m_view->setViewMode(QListView::IconMode); m_view->setGridSize(QSize(104, 104)); m_fileDialog = new QFileDialog(this); m_fileDialog->setFileMode(QFileDialog::ExistingFile); m_fileDialog->setNameFilter("Image files (*.png *.jpg *.jpeg)"); connect(m_fileDialog, SIGNAL(fileSelected(QString)), this, SLOT(fileSelected(QString))); m_uploadButton = new QPushButton("Upload image"); connect(m_uploadButton, SIGNAL(clicked()), m_fileDialog, SLOT(show())); QFrame *frame = new QFrame; QVBoxLayout *windowLayout = new QVBoxLayout(frame); windowLayout->addWidget(m_view); windowLayout->addWidget(m_uploadButton); setCentralWidget(frame); queryImages(); } QSize MainWindow::sizeHint() const { return QSize(500, 700); } void MainWindow::queryImages() { QJsonObject query; query.insert("objectType", QStringLiteral("objects.image")); QJsonObject fileObject; fileObject.insert("file", QJsonObject()); // Use include parameter to request full "file" object for every result // object including image and thumbnail URLs. query.insert("include", fileObject); // Filter out objects which have not yet been uploaded completely QJsonObject filter; QJsonObject exists; exists.insert("$exists", true); filter.insert("file.id", exists); query.insert("query", filter); m_model->setQuery(query); } void MainWindow::error(EnginioReply *error) { qWarning() << Q_FUNC_INFO << error; } void MainWindow::fileSelected(const QString &filePath) { if (filePath.isEmpty()) return; QJsonObject object; object.insert("objectType", QString("objects.image")); QString fileName = filePath.split(QDir::separator()).last(); object.insert("name", fileName); object.insert("localPath", filePath); EnginioReply *reply = m_model->append(object); connect(reply, SIGNAL(finished(EnginioReply*)), this, SLOT(beginUpload(EnginioReply*))); } void MainWindow::beginUpload(EnginioReply *reply) { reply->deleteLater(); QString path = reply->data().value("localPath").toString(); QString objectId = reply->data().value("id").toString(); QJsonObject object; object.insert("id", objectId); object.insert("objectType", QStringLiteral("objects.image")); object.insert("propertyName", QStringLiteral("file")); QJsonObject fileObject; fileObject.insert(QStringLiteral("fileName"), path); QJsonObject uploadJson; uploadJson.insert(QStringLiteral("targetFileProperty"), object); uploadJson.insert(QStringLiteral("file"), fileObject); EnginioReply *upload = m_client->uploadFile(uploadJson, QUrl::fromUserInput(path)); connect(upload, SIGNAL(finished(EnginioReply*)), upload, SLOT(deleteLater())); }