libragephoto/examples/ragephoto-qtviewer/src/main.cpp

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/*****************************************************************************
* libragephoto RAGE Photo Parser
2022-12-28 07:39:06 +01:00
* Copyright (C) 2021-2022 Syping
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. 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.
*
* This software is provided as-is, no warranties are given to you, we are not
* responsible for anything with use of the software, you are self responsible.
*****************************************************************************/
#include <RagePhoto.h>
#include <QApplication>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QFile>
#include <QFileDialog>
#include <QImage>
#include <QLabel>
#include <QMainWindow>
#include <QMessageBox>
#include <QPushButton>
#include <QTimer>
bool readPhotoFile(const QString &filename, QMainWindow *mainWindow, QLabel *photoLabel)
{
QFile file(filename);
if (file.open(QIODevice::ReadOnly)) {
const QByteArray fileData = file.readAll();
file.close();
RagePhoto ragePhoto;
const bool loaded = ragePhoto.load(fileData.data(), static_cast<size_t>(fileData.size()));
if (!loaded) {
const uint8_t error = ragePhoto.error();
if (error <= RagePhoto::PhotoReadError) {
QMessageBox::warning(mainWindow, "Open Photo", "Failed to read photo: " + filename);
return false;
}
}
const QByteArray photoData = QByteArray::fromRawData(ragePhoto.photoData(), ragePhoto.photoSize());
const QImage image = QImage::fromData(photoData, "JPEG");
photoLabel->setPixmap(QPixmap::fromImage(image));
mainWindow->setWindowTitle(QStringLiteral("RagePhoto Qt Photo Viewer - ") + QString::fromUtf8(ragePhoto.title()));
return true;
}
else {
QMessageBox::warning(mainWindow, "Open Photo", "Failed to read file: " + filename);
}
return false;
}
int main(int argc, char *argv[])
{
#if QT_VERSION >= 0x050600
#if QT_VERSION < 0x060000
QApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps, true);
#endif
#endif
QApplication app(argc, argv);
app.setApplicationName("ragephoto-qtviewer");
QMainWindow mainWindow;
mainWindow.setWindowTitle("RagePhoto Qt Photo Viewer");
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mainWindow.setFixedSize(400, 0);
QWidget centralWidget(&mainWindow);
mainWindow.setCentralWidget(&centralWidget);
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QVBoxLayout verticalLayout(&centralWidget);
verticalLayout.setContentsMargins(0, 0, 0, 0);
verticalLayout.setSpacing(6);
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QLabel photoLabel(&centralWidget);
verticalLayout.addWidget(&photoLabel);
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QHBoxLayout horizontalLayout;
horizontalLayout.setContentsMargins(6, 0, 6, 6);
horizontalLayout.setSpacing(6);
verticalLayout.addLayout(&horizontalLayout);
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QPushButton openButton("Open", &centralWidget);
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if (QIcon::hasThemeIcon("document-open"))
openButton.setIcon(QIcon::fromTheme("document-open"));
QObject::connect(&openButton, &QPushButton::clicked, &mainWindow, [&](){
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const QString filename = QFileDialog::getOpenFileName(&mainWindow, "Open Photo...", QString(), "RagePhoto compatible (PGTA5* PRDR3*)");
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if (filename.isEmpty())
return;
if (readPhotoFile(filename, &mainWindow, &photoLabel)) {
QTimer::singleShot(0, &mainWindow, [&](){
mainWindow.setFixedSize(mainWindow.sizeHint());
});
}
});
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openButton.setAutoDefault(true);
horizontalLayout.addWidget(&openButton);
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QPushButton closeButton("Close", &centralWidget);
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if (QIcon::hasThemeIcon("dialog-close"))
closeButton.setIcon(QIcon::fromTheme("dialog-close"));
QObject::connect(&closeButton, &QPushButton::clicked, &mainWindow, &QMainWindow::close);
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closeButton.setAutoDefault(true);
horizontalLayout.addWidget(&closeButton);
const QStringList args = app.arguments();
if (args.length() == 2) {
const QString filename = args.at(1);
if (readPhotoFile(filename, &mainWindow, &photoLabel)) {
QTimer::singleShot(0, &mainWindow, [&](){
mainWindow.setFixedSize(mainWindow.sizeHint());
});
}
}
else if (args.length() > 2) {
QMessageBox::warning(&mainWindow, "RagePhoto Qt Photo Viewer", "Can't open multiple photos at once!");
}
mainWindow.show();
return app.exec();
}