bool InternalPortModel::onItemEnterNotify(const Glib::RefPtr<Goocanvas::Item>& item,
GdkEventCrossing* event)
{
parentWindow->get_window()->set_cursor(Gdk::Cursor(Gdk::HAND1));
//this->property_stroke_color().set_value("DodgerBlue3");
if(!bServicePort)
poly->property_fill_color().set_value("LightSteelBlue");
else if(type == INPUTD)
ellipse->property_fill_color().set_value("LightSteelBlue");
parentWindow->getRootModel()->add_child(tool);
Gdk::Point pt = getContactPoint();
if(type == OUTPUTD)
{
tool->set_property("x", pt.get_x()+5);
tool->set_property("y", pt.get_y()-tool->getHeight()/2.0);
}
else
{
tool->set_property("x", pt.get_x()-tool->getWidth()-5);
tool->set_property("y", pt.get_y()-tool->getHeight()/2.0);
}
tool->raise();
return true;
}
void MidpointModel::updateCoordiantes(void)
{
if(!arrow)
return;
Gdk::Point pt = getContactPoint();
arrow->setPoint(point_x, point_y,
pt.get_x(), pt.get_y());
point_x = pt.get_x();
point_y = pt.get_y();
arrow->updatLabelCoordiante();
}
shared_ptr<timeline::Track>
TimelineLayoutHelper::begin_dragging_track(Gdk::Point const& mouse_point)
{
shared_ptr<timeline::Track> dragging_track =
header_from_point(mouse_point);
if(!dragging_track)
return shared_ptr<timeline::Track>();
dragPoint = Gdk::Point(mouse_point.get_x(),
mouse_point.get_y() + timelineWidget.get_y_scroll_offset());
const Gdk::Rectangle &rect = headerBoxes[dragging_track];
dragStartOffset = Gdk::Point(
dragPoint.get_x() - rect.get_x(),
dragPoint.get_y() - rect.get_y());
const shared_ptr<model::Track> modelTrack =
dragging_track->getModelTrack();
draggingTrackIter = iterator_from_track(modelTrack);
dragBranchHeight = measure_branch_height(draggingTrackIter);
dropPoint.relation = None;
return dragging_track;
}
void
TimelineLayoutHelper::drag_to_point (Gdk::Point const& mouse_point)
{
DropPoint drop;
drop.relation = None;
// begin_dragging_track must have been called before
REQUIRE(is_dragging_track());
// Apply the scroll offset
const Gdk::Point last_point(dragPoint);
dragPoint = Gdk::Point(mouse_point.get_x(),
mouse_point.get_y() + timelineWidget.get_y_scroll_offset());
// Get a test-point
// We probe on the bottom edge of the dragging branch if the track is
// being dragged downward, and on the top edge if it's being dragged
// upward.
Gdk::Point test_point(dragPoint.get_x(),
dragPoint.get_y() - dragStartOffset.get_y());
if(last_point.get_y() > dragPoint.get_y())
test_point.set_y(test_point.get_y());
else
test_point.set_y(test_point.get_y() + dragBranchHeight);
TrackTree::pre_order_iterator iterator;
TrackTree::pre_order_iterator begin = ++layoutTree.begin();
if(test_point.get_y() < 0)
{
// Find the first header that's not being dragged
for(iterator = begin;
iterator != layoutTree.end();
iterator++)
{
if(iterator == draggingTrackIter)
iterator.skip_children();
else
{
drop.relation = Before;
drop.target = iterator;
break;
}
}
}
else if(test_point.get_y() > totalHeight)
{
// Find the last header that's not being dragged
for(iterator = --layoutTree.end();
iterator != begin;
iterator--)
{
if(iterator.is_descendant_of(draggingTrackIter))
iterator.skip_children();
else
{
drop.relation = After;
drop.target = iterator;
break;
}
}
}
else
{
// Search the headers
for(iterator = ++layoutTree.begin();
iterator != layoutTree.end();
iterator++)
{
// Skip the dragging branch
if(iterator == draggingTrackIter)
iterator.skip_children();
else
{
// Do hit test
drop = attempt_drop(iterator, test_point);
if(drop.relation != None)
break;
}
}
}
// Did we get a drop point?
if (drop.relation != None)
{
REQUIRE(*drop.target);
shared_ptr<timeline::Track> target_timeline_track =
lookup_timeline_track(*drop.target);
apply_drop_to_layout_tree(drop);
dropPoint = drop;
// Expand the branch if the user is hovering to add the track
// as a child
if((drop.relation == FirstChild || drop.relation == LastChild) &&
!target_timeline_track->get_expanded())
target_timeline_track->expand_collapse(Track::Expand);
}
update_layout();
}