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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <QtWidgets>
#include "MainWindow.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkPicture.h"
#include "SkStream.h"
MainWindow::MainWindow()
: fImageLabel(new QLabel) {
this->setCentralWidget(fImageLabel);
this->createActions();
this->createStatusBar();
this->readSettings();
this->setUnifiedTitleAndToolBarOnMac(true);
}
void MainWindow::openFile() {
QString fileName = QFileDialog::getOpenFileName(this);
if (!fileName.isEmpty()) {
this->loadFile(fileName);
}
}
void MainWindow::loadFile(const QString &fileName) {
QFile file(fileName);
if (!file.open(QFile::ReadOnly | QFile::Text)) {
QMessageBox::warning(this, tr("MDB Viz"),
tr("Cannot read file %1:\n%2.")
.arg(QDir::toNativeSeparators(fileName), file.errorString()));
return;
}
QTextStream in(&file);
#ifndef QT_NO_CURSOR
QApplication::setOverrideCursor(Qt::WaitCursor);
#endif
std::string str = file.fileName().toLocal8Bit().constData();
std::unique_ptr<SkStream> stream = SkStream::MakeFromFile(str.c_str());
if (!stream) {
this->statusBar()->showMessage(tr("Couldn't read file"));
return;
}
sk_sp<SkPicture> pic(SkPicture::MakeFromStream(stream.get()));
if (!pic) {
this->statusBar()->showMessage(tr("Couldn't decode picture"));
return;
}
SkBitmap bm;
SkImageInfo ii = SkImageInfo::MakeN32Premul(1024, 1024);
bm.allocPixels(ii, 0);
SkCanvas canvas(bm);
canvas.drawPicture(pic);
fImage = QImage((uchar*)bm.getPixels(), bm.width(), bm.height(), QImage::Format_RGBA8888);
fImageLabel->setPixmap(QPixmap::fromImage(fImage));
#ifndef QT_NO_CURSOR
QApplication::restoreOverrideCursor();
#endif
}
void MainWindow::createActions() {
QMenu *fileMenu = this->menuBar()->addMenu(tr("&File"));
QToolBar *fileToolBar = this->addToolBar(tr("File"));
const QIcon openIcon = QIcon::fromTheme("document-open", QIcon(":/images/open.png"));
QAction *openAct = new QAction(openIcon, tr("&Open..."), this);
openAct->setShortcuts(QKeySequence::Open);
openAct->setStatusTip(tr("Open an existing file"));
connect(openAct, &QAction::triggered, this, &MainWindow::openFile);
fileMenu->addAction(openAct);
fileToolBar->addAction(openAct);
fileMenu->addSeparator();
const QIcon exitIcon = QIcon::fromTheme("application-exit");
QAction *exitAct = fileMenu->addAction(exitIcon, tr("E&xit"), this, &QWidget::close);
exitAct->setShortcuts(QKeySequence::Quit);
exitAct->setStatusTip(tr("Exit the application"));
}
void MainWindow::createStatusBar() {
this->statusBar()->showMessage(tr("Ready"));
}
void MainWindow::readSettings() {
QSettings settings(QCoreApplication::organizationName(), QCoreApplication::applicationName());
const QByteArray geometry = settings.value("geometry", QByteArray()).toByteArray();
if (geometry.isEmpty()) {
const QRect availableGeometry = QApplication::desktop()->availableGeometry(this);
resize(availableGeometry.width() / 3, availableGeometry.height() / 2);
move((availableGeometry.width() - width()) / 2,
(availableGeometry.height() - height()) / 2);
} else {
this->restoreGeometry(geometry);
}
}
void MainWindow::writeSettings() {
QSettings settings(QCoreApplication::organizationName(), QCoreApplication::applicationName());
settings.setValue("geometry", this->saveGeometry());
}
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