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qcam: Provide save image functionality

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Implement a save image button on the toolbar which will take a current
viewfinder image and present the user with a QFileDialog to allow them
to choose where to save the image.

Utilise the QImageWriter to perform the output task.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Kieran Bingham 2020-02-05 16:02:05 +00:00
parent 2dc85eabe1
commit 0f292e7821
5 changed files with 47 additions and 0 deletions
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22
src/qcam/main_window.cpp
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@ -12,7 +12,10 @@
#include <QComboBox>
#include <QCoreApplication>
#include <QFileDialog>
#include <QIcon>
#include <QImage>
#include <QImageWriter>
#include <QInputDialog>
#include <QTimer>
#include <QToolBar>
@ -88,6 +91,9 @@ int MainWindow::createToolbars()
action = toolbar_->addAction(QIcon(":stop-circle.svg"), "stop");
connect(action, &QAction::triggered, this, &MainWindow::stopCapture);
action = toolbar_->addAction(QIcon(":save.svg"), "saveAs");
connect(action, &QAction::triggered, this, &MainWindow::saveImageAs);
return 0;
}
@ -339,6 +345,22 @@ void MainWindow::stopCapture()
setWindowTitle(title_);
}
void MainWindow::saveImageAs()
{
QImage image = viewfinder_->getCurrentImage();
QString filename = QFileDialog::getSaveFileName(this, "Save Image", "",
"Image Files (*.png *.jpg *.jpeg)");
std::cout << "Save image to " << filename.toStdString() << std::endl;
if (filename.isEmpty())
return;
QImageWriter writer(filename);
writer.write(image);
}
void MainWindow::requestComplete(Request *request)
{
if (request->status() == Request::RequestCancelled)