QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
- const bool dragging = !_drag_row_items.empty();
for (const shared_ptr<RowItem> r : row_items)
{
assert(r);
- const bool highlight = !dragging &&
+ const bool highlight = !_dragging &&
r->label_rect(w).contains(_mouse_point);
r->paint_label(painter, w, highlight);
}
void Header::mouseLeftPressEvent(QMouseEvent *event)
{
+ (void)event;
+
const bool ctrl_pressed =
QApplication::keyboardModifiers() & Qt::ControlModifier;
// Clear selection if control is not pressed and this item is unselected
- const shared_ptr<RowItem> mouse_over =
- get_mouse_over_row_item(event->pos());
- if (!ctrl_pressed && (!mouse_over || !mouse_over->selected()))
+ if ((!_mouse_down_item || !_mouse_down_item->selected()) &&
+ !ctrl_pressed)
for (shared_ptr<RowItem> r : _view)
r->select(false);
// Set the signal selection state if the item has been clicked
- if (mouse_over) {
+ if (_mouse_down_item) {
if (ctrl_pressed)
- mouse_over->select(!mouse_over->selected());
+ _mouse_down_item->select(!_mouse_down_item->selected());
else
- mouse_over->select(true);
+ _mouse_down_item->select(true);
}
// Save the offsets of any signals which will be dragged
- _mouse_down_point = event->pos();
for (const shared_ptr<RowItem> r : _view)
if (r->selected())
- _drag_row_items.push_back(
- make_pair(r, r->v_offset()));
+ r->drag();
selection_changed();
update();
void Header::mousePressEvent(QMouseEvent *event)
{
assert(event);
+
+ _mouse_down_point = event->pos();
+ _mouse_down_item = get_mouse_over_row_item(event->pos());
+
if (event->button() & Qt::LeftButton)
mouseLeftPressEvent(event);
}
const shared_ptr<RowItem> mouse_over =
get_mouse_over_row_item(event->pos());
- if (_dragging)
- _view.normalize_layout();
- else
+ for (auto &r : _view)
+ r->drag_release();
+
+ if (!_dragging)
{
if (!ctrl_pressed) {
for (shared_ptr<RowItem> r : _view)
- if (mouse_over != r)
+ if (_mouse_down_item != r)
r->select(false);
- if (mouse_over)
- show_popup(mouse_over);
+ if (_mouse_down_item)
+ show_popup(_mouse_down_item);
}
}
_dragging = false;
- _drag_row_items.clear();
}
void Header::mouseReleaseEvent(QMouseEvent *event)
assert(event);
if (event->button() & Qt::LeftButton)
mouseLeftReleaseEvent(event);
+
+ _mouse_down_item = nullptr;
}
void Header::mouseMoveEvent(QMouseEvent *event)
QApplication::startDragDistance())
return;
- // Check the list of dragging items is not empty
- if (_drag_row_items.empty())
- return;
-
// Check all the drag items share a common owner
- const shared_ptr<RowItem> first_row_item(
- _drag_row_items.front().first);
- for (const auto &r : _drag_row_items) {
- const shared_ptr<RowItem> row_item(r.first);
- assert(row_item);
-
- if (row_item->owner() != first_row_item->owner())
- return;
- }
+ 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;
+ }
+
+ if (!item_owner)
+ return;
// Do the drag
_dragging = true;
const int delta = event->pos().y() - _mouse_down_point.y();
- for (auto i = _drag_row_items.begin();
- i != _drag_row_items.end(); i++) {
- const std::shared_ptr<RowItem> row_item((*i).first);
- if (row_item) {
- const int y = (*i).second + delta;
- row_item->set_v_offset(y);
+ for (std::shared_ptr<RowItem> r : _view)
+ if (r->dragging()) {
+ r->set_v_offset(r->drag_point().y() + delta);
// Ensure the trace is selected
- row_item->select();
+ r->select();
}
- }
signals_moved();