-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
- 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_down_item_) {
- if (ctrl_pressed)
- mouse_down_item_->select(!mouse_down_item_->selected());
- else
- mouse_down_item_->select(true);
- }
-
- // Save the offsets of any signals which will be dragged
- for (const shared_ptr<RowItem> r : view_)
- if (r->selected())
- r->drag();
-
- selection_changed();
- update();
-}
-
-void Header::mousePressEvent(QMouseEvent *event)
-{
- assert(event);
-
- mouse_down_point_ = event->pos();
- mouse_down_item_ = get_mouse_over_item(event->pos());
-
- if (event->button() & Qt::LeftButton)
- mouseLeftPressEvent(event);
-}
-
-void Header::mouseLeftReleaseEvent(QMouseEvent *event)
-{
- assert(event);
-
- const bool ctrl_pressed =
- QApplication::keyboardModifiers() & Qt::ControlModifier;
-
- // Unselect everything if control is not pressed
- const shared_ptr<RowItem> mouse_over =
- get_mouse_over_item(event->pos());
-
- for (auto &r : view_)
- r->drag_release();
-
- if (dragging_)
- view_.restack_all_row_items();
- else
- {
- if (!ctrl_pressed) {
- for (shared_ptr<RowItem> r : view_)
- if (mouse_down_item_ != r)
- r->select(false);
-
- if (mouse_down_item_)
- show_popup(mouse_down_item_);
- }
- }
-
- dragging_ = false;
-}
-
-void Header::mouseReleaseEvent(QMouseEvent *event)
-{
- assert(event);
- if (event->button() & Qt::LeftButton)
- mouseLeftReleaseEvent(event);
-
- mouse_down_item_ = nullptr;
-}
-
-void Header::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;
-
- // 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;
- }
-
- if (!item_owner)
- return;
-
- // Do the drag
- dragging_ = true;
-
- const QPoint delta = event->pos() - mouse_down_point_;
-
- for (std::shared_ptr<RowItem> r : view_)
- if (r->dragging()) {
- r->drag_by(delta);
-
- // Ensure the trace is selected
- r->select();
- }
-
- item_owner->restack_items();
- for (const auto &r : *item_owner)
- r->animate_to_layout_v_offset();
- signals_moved();
-
- update();
-}
-
-void Header::leaveEvent(QEvent*)
-{
- mouse_point_ = QPoint(-1, -1);
- update();
-}
-