X-Git-Url: http://git.code-monkey.de/?a=blobdiff_plain;f=pv%2Fview%2Fviewwidget.cpp;h=9c4c56ff6f0e50d20f1ec3839ee9b4b8ebbc6f30;hb=1dffa582704bb6acb144a3e89bd6eb0e2ccf4f25;hp=357b6fea5648d3f3dba4908b9d04c22624a6d266;hpb=40aca27ed83559f7f79873e353f64d2c36a18fce;p=pulseview.git

diff --git a/pv/view/viewwidget.cpp b/pv/view/viewwidget.cpp
index 357b6fe..9c4c56f 100644
--- a/pv/view/viewwidget.cpp
+++ b/pv/view/viewwidget.cpp
@@ -18,9 +18,17 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#include <algorithm>
+
+#include "rowitem.hpp"
+#include "timeitem.hpp"
 #include "view.hpp"
 #include "viewwidget.hpp"
 
+using std::any_of;
+using std::shared_ptr;
+using std::vector;
+
 namespace pv {
 namespace view {
 
@@ -30,5 +38,63 @@ ViewWidget::ViewWidget(View &parent) :
 {
 }
 
+bool ViewWidget::accept_drag() const
+{
+	const vector< shared_ptr<TimeItem> > items(view_.time_items());
+
+	const bool any_row_items_selected = any_of(view_.begin(), view_.end(),
+		[](const shared_ptr<RowItem> &r) { return r->selected(); });
+
+	const bool any_time_items_selected = any_of(items.begin(), items.end(),
+		[](const shared_ptr<TimeItem> &i) { return i->selected(); });
+
+	if (any_row_items_selected && !any_time_items_selected)
+	{
+		// Check all the drag items share a common owner
+		RowItemOwner *item_owner = nullptr;
+		for (shared_ptr<RowItem> r : view_)
+			if (r->dragging()) {
+				if (!item_owner)
+					item_owner = r->owner();
+				else if(item_owner != r->owner())
+					return false;
+			}
+
+		return true;
+	}
+	else if (any_time_items_selected && !any_row_items_selected)
+	{
+		return true;
+	}
+
+	return false;
+}
+
+void ViewWidget::drag_items(const QPoint &delta)
+{
+	// Drag the row items
+	RowItemOwner *item_owner = nullptr;
+	for (std::shared_ptr<RowItem> r : view_)
+		if (r->dragging()) {
+			item_owner = r->owner();
+			r->drag_by(delta);
+
+			// Ensure the trace is selected
+			r->select();
+		}
+
+	if (item_owner) {
+		item_owner->restack_items();
+		for (const auto &r : *item_owner)
+			r->animate_to_layout_v_offset();
+	}
+
+	// Drag the time items
+	const vector< shared_ptr<TimeItem> > items(view_.time_items());
+	for (auto &i : items)
+		if (i->dragging())
+			i->drag_by(delta);
+}
+
 } // namespace view
 } // namespace pv