Add KeyEventHandler class

Author: adazem009

ScratchCPPGui/CMakeLists.txt

@@ -22,4 +22,6 @@ qt_add_qml_module(libscratchcpp-gui
         renderedtarget.h
 	targetpainter.cpp
 	targetpainter.h
+	keyeventhandler.cpp
+	keyeventhandler.h
 )

ScratchCPPGui/keyeventhandler.cpp

@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+#include <QKeyEvent>
+
+#include "keyeventhandler.h"
+
+using namespace scratchcppgui;
+
+KeyEventHandler::KeyEventHandler(QObject *parent) :
+    QObject(parent)
+{
+}
+
+bool KeyEventHandler::eventFilter(QObject *obj, QEvent *event)
+{
+    switch (event->type()) {
+        case QEvent::KeyPress: {
+            QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
+            emit keyPressed(static_cast<Qt::Key>(keyEvent->key()), keyEvent->text());
+            break;
+        }
+
+        case QEvent::KeyRelease: {
+            QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
+            emit keyReleased(static_cast<Qt::Key>(keyEvent->key()), keyEvent->text());
+            break;
+        }
+
+        default:
+            break;
+    }
+
+    return QObject::eventFilter(obj, event);
+}

ScratchCPPGui/keyeventhandler.h

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: LGPL-3.0-or-later
+
+#pragma once
+
+#include <QObject>
+
+namespace scratchcppgui
+{
+
+class KeyEventHandler : public QObject
+{
+        Q_OBJECT
+    public:
+        explicit KeyEventHandler(QObject *parent = nullptr);
+
+    signals:
+        void keyPressed(Qt::Key key, const QString &text);
+        void keyReleased(Qt::Key key, const QString &text);
+
+    protected:
+        bool eventFilter(QObject *obj, QEvent *event) override;
+};
+
+} // namespace scratchcppgui