--- a/src/mainwindow.h	Fri Feb 05 14:23:16 2021 +0200
+++ b/src/mainwindow.h	Sun May 16 22:41:00 2021 +0300
@@ -73,4 +73,10 @@
 	void loadColors();
 	Q_SLOT void toolActionTriggered();
 	void selectTool(BaseTool* tool);
+private slots:
+	void canvasMousePressed(QMouseEvent* event);
+	void canvasMouseReleased(QMouseEvent* event);
+	void canvasMouseDoubleClicked(QMouseEvent* event);
+	void canvasMouseMoved(QMouseEvent*);
+	void canvasKeyReleased(QKeyEvent*);
 };