Mouse buttons 4 and 5 now work to navigate steps.

common/lc_glwidget.h

@@ -82,6 +82,10 @@ public:
 	virtual void OnMiddleButtonUp() { }
 	virtual void OnRightButtonDown() { }
 	virtual void OnRightButtonUp() { }
+	virtual void OnBackButtonDown() { }
+	virtual void OnBackButtonUp() { }
+	virtual void OnForwardButtonDown() { }
+	virtual void OnForwardButtonUp() { }
 	virtual void OnMouseMove() { }
 	virtual void OnMouseWheel(float Direction) { }
 

common/view.cpp

@@ -2366,6 +2366,16 @@ void View::OnRightButtonUp()
 		StopTracking(mTrackButton == LC_TRACKBUTTON_RIGHT);
 }
 
+void View::OnBackButtonUp()
+{
+	gMainWindow->HandleCommand(LC_VIEW_TIME_PREVIOUS);
+}
+
+void View::OnForwardButtonUp()
+{
+	gMainWindow->HandleCommand(LC_VIEW_TIME_NEXT);
+}
+
 void View::OnMouseMove()
 {
 	if (mTrackButton == LC_TRACKBUTTON_NONE)

common/view.h

@@ -72,6 +72,8 @@ public:
 	void OnMiddleButtonUp();
 	void OnRightButtonDown();
 	void OnRightButtonUp();
+	void OnBackButtonUp();
+	void OnForwardButtonUp();
 	void OnMouseMove();
 	void OnMouseWheel(float Direction);
 

qt/lc_qglwidget.cpp

@@ -229,12 +229,23 @@ void lcQGLWidget::mousePressEvent(QMouseEvent *event)
 	case Qt::LeftButton:
 		widget->OnLeftButtonDown();
 		break;
+
 	case Qt::MidButton:
 		widget->OnMiddleButtonDown();
 		break;
+
 	case Qt::RightButton:
 		widget->OnRightButtonDown();
 		break;
+
+	case Qt::BackButton:
+		widget->OnBackButtonDown();
+		break;
+
+	case Qt::ForwardButton:
+		widget->OnForwardButtonDown();
+		break;
+
 	default:
 		break;
 	}
@@ -255,12 +266,23 @@ void lcQGLWidget::mouseReleaseEvent(QMouseEvent *event)
 	case Qt::LeftButton:
 		widget->OnLeftButtonUp();
 		break;
+
 	case Qt::MidButton:
 		widget->OnMiddleButtonUp();
 		break;
+
 	case Qt::RightButton:
 		widget->OnRightButtonUp();
 		break;
+
+	case Qt::BackButton:
+		widget->OnBackButtonUp();
+		break;
+
+	case Qt::ForwardButton:
+		widget->OnForwardButtonUp();
+		break;
+
 	default:
 		break;
 	}