improve status messages

src/main.cpp

@@ -111,6 +111,7 @@ int main(int argc, char *argv[])
 
 	QObject::connect(&w, &MainWindow::sigEditProfiles, [&cameras, &w](){showProfileDialog(&cameras); w.refreshProfiles();});
 	QObject::connect(&pipe, &ImagePipeline::sigResult, w.mainImageViewer(), &CvImageViewer::setImage, Qt::QueuedConnection);
+	QObject::connect(&pipe, &ImagePipeline::sigResult, [&w](){w->statusMsg("idle");});
 	QObject::connect(&pipe, &ImagePipeline::sigInvalidProfile, &w, &MainWindow::profileInconpatible);
 
 	QObject::connect(&w, &MainWindow::sigProfile, [&pipe](QString name)

src/ui/mainwindow.cpp

@@ -17,6 +17,7 @@ MainWindow::MainWindow(QWidget *parent)
 	connect(ui->actionCameras, &QAction::triggered, [this](bool checked){(void)checked; sigChooseCameras();});
 	connect(ui->actionProfile, &QAction::triggered, [this](bool checked){(void)checked; sigEditProfiles();});
 	connect(ui->comboBox, &QComboBox::currentTextChanged, this, &MainWindow::sigProfile);
+	connect(ui->pushButtonCapture, &QPushButton::clicked, [this](){statusMsg("captureing");});
 	connect(ui->pushButtonCapture, &QPushButton::clicked, this, &MainWindow::sigCapture);
 	connect(ui->mainViewer, &CvImageViewer::sigValue, this, &MainWindow::setImageValue);
 	connect(ui->actionOpen, &QAction::triggered, [this](bool checked){(void)checked; openImage();});