Added ViewWidget as a common ancestor of all view widgets

[pulseview.git] / pv / view / marginwidget.cpp

diff --git a/pv/view/marginwidget.cpp b/pv/view/marginwidget.cpp
index d96d3aba66f315bf1483f7b4f3045ce96552a7f6..fcbb31bf0174bb1944286005b11d0d978d715126 100644 (file)
--- a/pv/view/marginwidget.cpp
+++ b/pv/view/marginwidget.cpp
@@ -34,8 +34,7 @@ namespace pv {
 namespace view {
 
 MarginWidget::MarginWidget(View &parent) :
-       QWidget(&parent),
-       view_(parent),
+       ViewWidget(parent),
        dragging_(false)
 {
        setAttribute(Qt::WA_NoSystemBackground, true);
@@ -132,6 +131,28 @@ void MarginWidget::mouseReleaseEvent(QMouseEvent *event)
        mouse_down_item_ = nullptr;
 }
 
+void MarginWidget::mouseMoveEvent(QMouseEvent *event)
+{
+       assert(event);
+       mouse_point_ = event->pos();
+
+       if (!(event->buttons() & Qt::LeftButton))
+               return;
+
+       if ((event->pos() - mouse_down_point_).manhattanLength() <
+               QApplication::startDragDistance())
+               return;
+
+       if (!accept_drag())
+               return;
+
+       // Do the drag
+       dragging_ = true;
+       drag_items(event->pos() - mouse_down_point_);
+
+       update();
+}
+
 void MarginWidget::leaveEvent(QEvent*)
 {
        mouse_point_ = QPoint(-1, -1);