ClickLabel: rename clicked to leftClicked and only fire when left mouse button clicked

gui/clicklabel.cpp

@@ -1,6 +1,11 @@
+#include <QMouseEvent>
 #include "clicklabel.h"
 
 void ClickLabel::mousePressEvent(QMouseEvent *event)
 {
-	emit clicked();
+	if(event->button() == Qt::LeftButton)
+	{
+		emit leftClick();
+	}
+	return QLabel::mousePressEvent(event);
 }

gui/clicklabel.h

@@ -8,7 +8,7 @@ class ClickLabel : public QLabel
   public:
 	using QLabel::QLabel;
   signals:
-	void clicked();
+	void leftClick();
 
   protected:
 	void mousePressEvent(QMouseEvent *event);

gui/mainwindow.cpp

@@ -120,7 +120,7 @@ void MainWindow::pdfPreviewReceived(PdfPreview preview)
 	label->setPixmap(QPixmap::fromImage(preview.previewImage));
 	label->setToolTip(preview.documentPath);
 	ui->scrollAreaWidgetContents->layout()->addWidget(label);
-	connect(label, &ClickLabel::clicked,
+	connect(label, &ClickLabel::leftClick,
 			[=]()
 			{
 				QSettings settings;