From d62fb16a5884ee4e338e095a0b864184e6cbdfc2 Mon Sep 17 00:00:00 2001
From: Thomas Harte <thomas.harte@gmail.com>
Date: Fri, 5 Jun 2020 22:11:17 -0400
Subject: [PATCH] Adds an eventFilter, in order to steal keypresses.

---
 OSBindings/Qt/mainwindow.cpp       | 19 +++++++++++++++++++
 OSBindings/Qt/mainwindow.h         |  3 +++
 OSBindings/Qt/scantargetwidget.cpp |  2 +-
 3 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/OSBindings/Qt/mainwindow.cpp b/OSBindings/Qt/mainwindow.cpp
index e32cbc2c1..ffb646bc4 100644
--- a/OSBindings/Qt/mainwindow.cpp
+++ b/OSBindings/Qt/mainwindow.cpp
@@ -22,6 +22,7 @@ MainWindow::MainWindow(QWidget *parent)
 {
 	ui->setupUi(this);
 	createActions();
+	qApp->installEventFilter(this);
 
 	// Set up the emulation timer. Bluffer's guide: the QTimer will post an
 	// event to an event loop. QThread is a thread with an event loop.
@@ -250,3 +251,21 @@ void MainWindow::dropEvent(QDropEvent* event) {
 		break;
 	}
 }
+
+// MARK: Input capture.
+
+bool MainWindow::eventFilter(QObject *obj, QEvent *event) {
+	switch(event->type()) {
+		case QEvent::KeyPress:
+		case QEvent::KeyRelease: {
+			const auto keyEvent = static_cast<QKeyEvent *>(event);
+			qDebug() << keyEvent->key() << " " << (event->type() == QEvent::KeyPress);
+		} break;
+
+		default:
+		break;
+	}
+
+	return QObject::eventFilter(obj, event);
+}
+
diff --git a/OSBindings/Qt/mainwindow.h b/OSBindings/Qt/mainwindow.h
index 66d600154..970f439bb 100644
--- a/OSBindings/Qt/mainwindow.h
+++ b/OSBindings/Qt/mainwindow.h
@@ -22,6 +22,9 @@ class MainWindow : public QMainWindow {
 		MainWindow(QWidget *parent = nullptr);
 		~MainWindow();
 
+	protected:
+		bool eventFilter(QObject *obj, QEvent *event) override;
+
 	private:
 		std::unique_ptr<Ui::MainWindow> ui;
 		std::unique_ptr<QTimer> qTimer;
diff --git a/OSBindings/Qt/scantargetwidget.cpp b/OSBindings/Qt/scantargetwidget.cpp
index ce77e8585..33c133425 100644
--- a/OSBindings/Qt/scantargetwidget.cpp
+++ b/OSBindings/Qt/scantargetwidget.cpp
@@ -10,7 +10,7 @@ ScanTargetWidget::~ScanTargetWidget() {}
 void ScanTargetWidget::initializeGL() {
 	glClearColor(0.5, 0.5, 1.0, 1.0);
 
-	qDebug() << "share context: " << bool(context()->shareGroup());
+//	qDebug() << "share context: " << bool(context()->shareGroup());
 }
 
 void ScanTargetWidget::paintGL() {