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