overte/interface/src/ui/DiskCacheEditor.cpp
2015-03-09 13:42:14 +01:00

150 lines
4.4 KiB
C++

//
// DiskCacheEditor.cpp
//
//
// Created by Clement on 3/4/15.
// Copyright 2015 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include <functional>
#include <QDebug>
#include <QDialog>
#include <QGridLayout>
#include <QPushButton>
#include <QLabel>
#include <QNetworkDiskCache>
#include <QMessageBox>
#include <NetworkAccessManager.h>
#include "DiskCacheEditor.h"
DiskCacheEditor::DiskCacheEditor(QWidget* parent) : QObject(parent) {
}
QWindow* DiskCacheEditor::windowHandle() {
return (_dialog) ? _dialog->windowHandle() : nullptr;
}
void DiskCacheEditor::toggle() {
qDebug() << "DiskCacheEditor::toggle()";
if (!_dialog) {
makeDialog();
}
if (!_dialog->isActiveWindow()) {
_dialog->show();
_dialog->raise();
_dialog->activateWindow();
} else {
_dialog->close();
}
}
void DiskCacheEditor::makeDialog() {
_dialog = new QDialog(static_cast<QWidget*>(parent()));
Q_CHECK_PTR(_dialog);
_dialog->setAttribute(Qt::WA_DeleteOnClose);
_dialog->setWindowTitle("Disk Cache Editor");
QGridLayout* layout = new QGridLayout(_dialog);
Q_CHECK_PTR(layout);
_dialog->setLayout(layout);
QLabel* path = new QLabel("Path : ", _dialog);
Q_CHECK_PTR(path);
path->setAlignment(Qt::AlignRight);
layout->addWidget(path, 0, 0);
QLabel* size = new QLabel("Current Size : ", _dialog);
Q_CHECK_PTR(size);
size->setAlignment(Qt::AlignRight);
layout->addWidget(size, 1, 0);
QLabel* maxSize = new QLabel("Max Size : ", _dialog);
Q_CHECK_PTR(maxSize);
maxSize->setAlignment(Qt::AlignRight);
layout->addWidget(maxSize, 2, 0);
_path = new QLabel(_dialog);
Q_CHECK_PTR(_path);
_path->setAlignment(Qt::AlignLeft);
layout->addWidget(_path, 0, 1, 1, 3);
_size = new QLabel(_dialog);
Q_CHECK_PTR(_size);
_size->setAlignment(Qt::AlignLeft);
layout->addWidget(_size, 1, 1, 1, 3);
_maxSize = new QLabel(_dialog);
Q_CHECK_PTR(_maxSize);
_maxSize->setAlignment(Qt::AlignLeft);
layout->addWidget(_maxSize, 2, 1, 1, 3);
refresh();
QPushButton* refreshCacheButton = new QPushButton(_dialog);
Q_CHECK_PTR(refreshCacheButton);
refreshCacheButton->setText("Refresh");
refreshCacheButton->setToolTip("Reload the cache stats.");
connect(refreshCacheButton, SIGNAL(clicked()), SLOT(refresh()));
layout->addWidget(refreshCacheButton, 3, 2);
QPushButton* clearCacheButton = new QPushButton(_dialog);
Q_CHECK_PTR(clearCacheButton);
clearCacheButton->setText("Clear");
clearCacheButton->setToolTip("Erases the entire content of the disk cache.");
connect(clearCacheButton, SIGNAL(clicked()), SLOT(clear()));
layout->addWidget(clearCacheButton, 3, 3);
}
void DiskCacheEditor::refresh() {
static const std::function<QString(qint64)> stringify = [](qint64 number) {
static const QStringList UNITS = QStringList() << "B" << "KB" << "MB" << "GB";
static const qint64 CHUNK = 1024;
QString unit;
int i = 0;
for (i = 0; i < 4; ++i) {
if (number / CHUNK > 0) {
number /= CHUNK;
} else {
break;
}
}
return QString("%0 %1").arg(number).arg(UNITS[i]);
};
QNetworkDiskCache* cache = qobject_cast<QNetworkDiskCache*>(NetworkAccessManager::getInstance().cache());
if (_path) {
_path->setText(cache->cacheDirectory());
}
if (_size) {
_size->setText(stringify(cache->cacheSize()));
}
if (_maxSize) {
_maxSize->setText(stringify(cache->maximumCacheSize()));
}
}
void DiskCacheEditor::clear() {
QMessageBox::StandardButton buttonClicked =
QMessageBox::question(_dialog, "Clearing disk cache",
"You are about to erase all the content of the disk cache,"
"are you sure you want to do that?");
if (buttonClicked == QMessageBox::Yes) {
QNetworkDiskCache* cache = qobject_cast<QNetworkDiskCache*>(NetworkAccessManager::getInstance().cache());
if (cache) {
qDebug() << "DiskCacheEditor::clear(): Clearing disk cache.";
cache->clear();
}
}
refresh();
}