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mainwindow.cpp
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mainwindow.cpp
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#include <QtWidgets>
#include <QDebug>
#include "mainwindow.h"
#include "codewidget.h"
#include "filterswidget.h"
#include "imagewidget.h"
#include "pipelinewidget.h"
#include "pipelinewidgetitem.h"
#include "Filters/filter.h"
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
{
undoStack = new QUndoStack(this);
createActions();
createMenus();
createToolBars();
createStatusBar();
createCentralWidget();
createDockWindows();
#ifndef QT_NO_DEBUG
createUndoView();
#endif
connect(pipelineWidget, SIGNAL(sourceCodeChanged(QString)),
codeWidget, SLOT(setPlainText(QString)));
connect(pipelineWidget, SIGNAL(outputPixmapChanged(QPixmap)),
imageWidget, SLOT(updatePixmap(QPixmap)));
setWindowTitle("Prototyping Toolkit for Image Processing");
loadImageFile(":/Images/lena.jpg");
resize(QGuiApplication::primaryScreen()->availableSize() * 3 / 5);
}
MainWindow::~MainWindow()
{
}
void MainWindow::openProject()
{
}
void MainWindow::openImage()
{
QStringList mimeTypeFilters;
foreach (const QByteArray &mimeTypeName,
QImageReader::supportedMimeTypes()) {
mimeTypeFilters.append(mimeTypeName);
}
mimeTypeFilters.sort();
const QStringList picturesLocations =
QStandardPaths::standardLocations(QStandardPaths::PicturesLocation);
QFileDialog dialog(this, tr("Open File"), picturesLocations.isEmpty() ?
QDir::currentPath() : picturesLocations.first());
dialog.setAcceptMode(QFileDialog::AcceptOpen);
dialog.setMimeTypeFilters(mimeTypeFilters);
dialog.selectMimeTypeFilter("image/jpeg");
while (dialog.exec() == QDialog::Accepted &&
!loadImageFile(dialog.selectedFiles().first())) {
}
}
void MainWindow::zoomIn()
{
double newScaleFactor = imageWidget->scaleFactor() * 1.25;
imageWidget->setScaleFactor(newScaleFactor);
updateActions();
}
void MainWindow::zoomOut()
{
double newScaleFactor = imageWidget->scaleFactor() * 0.8;
imageWidget->setScaleFactor(newScaleFactor);
updateActions();
}
void MainWindow::normalSize()
{
imageWidget->setScaleFactor(1.0);
updateActions();
}
void MainWindow::fitToWindow()
{
bool fitToWindow = fitToWindowAct->isChecked();
imageWidget->setFitToWindow(fitToWindow);
updateActions();
}
void MainWindow::about() //TODO
{
QMessageBox::about(this,
tr("About Prototyping Toolkit for Image Processing"),
tr("<p>The <b>Prototyping Toolkit for Image Processing"
"</b> is built with OpenCV and Qt libraries.</p>"
"<p>It's not finished yet...</p>"));
}
void MainWindow::showFilterWidget(QListWidgetItem *item)
{
Filter *filter = item->data(PipelineWidgetItem::FilterRole).value<Filter *>();
if (!filter) {
return;
}
QDialog *dialog = filter->createDialog(this);
if (dialog) {
dialog->exec();
delete dialog;
}
}
void MainWindow::createActions()
{
openProjectAct = new QAction(tr("&Open Project..."), this);
openProjectAct->setShortcuts(QKeySequence::Open);
//TODO setStatusTip
connect(openProjectAct, SIGNAL(triggered()), this, SLOT(openProject()));
openImageAct = new QAction(tr("&Open Image..."), this);
//TODO setShortcut
//TODO setStatusTip
connect(openImageAct, SIGNAL(triggered()), this, SLOT(openImage()));
exitAct = new QAction(tr("E&xit"), this);
exitAct->setShortcuts(QKeySequence::Quit);
exitAct->setStatusTip(tr("Exit the application"));
connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
undoAct = undoStack->createUndoAction(this, tr("&Undo"));
undoAct->setShortcuts(QKeySequence::Undo);
undoAct->setStatusTip(tr("Undo the last editing action"));
redoAct = undoStack->createRedoAction(this, tr("&Redo"));
redoAct->setShortcuts(QKeySequence::Redo);
//TODO setStatusTip
// redoAct->setStatusTip(tr("Undo the last editing action"));
zoomInAct = new QAction(tr("Zoom &In (25%)"), this);
zoomInAct->setShortcut(tr("Ctrl++"));
zoomInAct->setEnabled(false);
connect(zoomInAct, SIGNAL(triggered()), this, SLOT(zoomIn()));
zoomOutAct = new QAction(tr("Zoom &Out (25%)"), this);
zoomOutAct->setShortcut(tr("Ctrl+-"));
zoomOutAct->setEnabled(false);
connect(zoomOutAct, SIGNAL(triggered()), this, SLOT(zoomOut()));
normalSizeAct = new QAction(tr("&Normal Size"), this);
//TODO setShortcut
normalSizeAct->setEnabled(false);
connect(normalSizeAct, SIGNAL(triggered()), this, SLOT(normalSize()));
fitToWindowAct = new QAction(tr("&Fit to Window"), this);
fitToWindowAct->setEnabled(false);
fitToWindowAct->setCheckable(true);
fitToWindowAct->setShortcut(tr("Ctrl+F")); //TODO setShortcut
connect(fitToWindowAct, SIGNAL(triggered()), this, SLOT(fitToWindow()));
aboutAct = new QAction(tr("&About"), this);
connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
aboutQtAct = new QAction(tr("About &Qt"), this);
connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
}
void MainWindow::createMenus()
{
fileMenu = new QMenu(tr("&File"), this);
fileMenu->addAction(openProjectAct);
fileMenu->addAction(openImageAct);
fileMenu->addSeparator();
fileMenu->addAction(exitAct);
editMenu = new QMenu(tr("&Edit"), this);
editMenu->addAction(undoAct);
editMenu->addAction(redoAct);
viewMenu = new QMenu(tr("&View"), this);
viewMenu->addAction(zoomInAct);
viewMenu->addAction(zoomOutAct);
viewMenu->addAction(normalSizeAct);
viewMenu->addSeparator();
viewMenu->addAction(fitToWindowAct);
windowMenu = new QMenu(tr("&Window"), this);
helpMenu = new QMenu(tr("&Help"), this);
helpMenu->addAction(aboutAct);
helpMenu->addAction(aboutQtAct);
menuBar()->addMenu(fileMenu);
menuBar()->addMenu(editMenu);
menuBar()->addMenu(viewMenu);
menuBar()->addMenu(windowMenu);
menuBar()->addMenu(helpMenu);
}
void MainWindow::createToolBars()
{
fileToolBar = addToolBar(tr("File"));
fileToolBar->addAction(openImageAct);
editToolBar = addToolBar(tr("Edit"));
editToolBar->addAction(undoAct);
}
void MainWindow::createStatusBar()
{
statusBar()->showMessage(tr("Ready"));
statusBar()->setSizeGripEnabled(false); //TODO just try to fix Ubuntu bug
}
void MainWindow::createCentralWidget()
{
imageWidget = new ImageWidget;
codeWidget = new CodeWidget;
tabWidget = new QTabWidget;
tabWidget->addTab(imageWidget, "Image"); //TODO
tabWidget->addTab(codeWidget, "Code"); //TODO
setCentralWidget(tabWidget);
}
void MainWindow::createDockWindows()
{
filtersWidget = new FiltersWidget;
QDockWidget *dock = new QDockWidget(tr("Filters"), this);
dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea); //TODO
dock->setWidget(filtersWidget);
addDockWidget(Qt::LeftDockWidgetArea, dock);
windowMenu->addAction(dock->toggleViewAction());
pipelineWidget = new PipelineWidget;
connect(pipelineWidget, SIGNAL(itemActivated(QListWidgetItem*)),
this, SLOT(showFilterWidget(QListWidgetItem*)));
dock = new QDockWidget(tr("Pipeline"), this);
dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea); //TODO
dock->setWidget(pipelineWidget);
addDockWidget(Qt::LeftDockWidgetArea, dock);
windowMenu->addAction(dock->toggleViewAction());
connect(filtersWidget, SIGNAL(itemActivated(QTreeWidgetItem*,int)),
pipelineWidget, SLOT(appendItem(QTreeWidgetItem*)));
}
void MainWindow::createUndoView()
{
undoView = new QUndoView(undoStack);
undoView->setWindowTitle(tr("Command List"));
undoView->show();
undoView->setAttribute(Qt::WA_QuitOnClose, false);
}
void MainWindow::updateActions()
{
double scaleFactor = imageWidget->scaleFactor();
zoomInAct->setEnabled(!fitToWindowAct->isChecked() && scaleFactor < 3.0);
zoomOutAct->setEnabled(!fitToWindowAct->isChecked() && scaleFactor > 0.333);
normalSizeAct->setEnabled(!fitToWindowAct->isChecked());
}
bool MainWindow::loadImageFile(const QString &fileName)
{
QImage image(fileName);
if (image.isNull()) {
QMessageBox::information(this, QGuiApplication::applicationDisplayName(),
tr("Cannot load %1").arg(QDir::toNativeSeparators(fileName)));
setWindowFilePath(QString());
imageWidget->setPixmap(QPixmap());
return false;
}
pipelineWidget->setInputPixmap(QPixmap::fromImage(image));
imageWidget->setScaleFactor(1.0);
setWindowFilePath(fileName);
fitToWindowAct->setEnabled(true);
updateActions();
return true;
}