void CutTool::updateHoverState(QPointF cursor_pos_screen, MapWidget* widget)
{
HoverState new_hover_state = HoverFlag::OverNothing;
const Object* new_hover_object = nullptr;
MapCoordVector::size_type new_hover_point = 0;
if (map()->selectedObjects().size() <= max_objects_for_handle_display)
{
auto best_distance_sq = std::numeric_limits<double>::max();
for (const auto object : map()->selectedObjects())
{
MapCoordF handle_pos;
auto hover_point = findHoverPoint(cursor_pos_screen, widget, object, false, &handle_pos);
if (hover_point == std::numeric_limits<MapCoordVector::size_type>::max())
continue;
auto distance_sq = widget->viewportToMapF(cursor_pos_screen).distanceSquaredTo(handle_pos);
if (distance_sq < best_distance_sq)
{
new_hover_state = HoverFlag::OverObjectNode;
new_hover_object = object;
new_hover_point = hover_point;
best_distance_sq = distance_sq;
}
}
}
if (new_hover_state != hover_state ||
new_hover_object != hover_object ||
new_hover_point != hover_point)
{
hover_state = new_hover_state;
// We have got a Map*, so we may get a Object*.
hover_object = const_cast<Object*>(new_hover_object);
hover_point = new_hover_point;
updateDirtyRect();
}
}
void EditPointTool::updateHoverState(MapCoordF cursor_pos)
{
HoverState new_hover_state = OverNothing;
const Object* new_hover_object = nullptr;
MapCoordVector::size_type new_hover_point = no_point;
if (text_editor)
{
handle_offset = MapCoordF(0, 0);
}
else if (!map()->selectedObjects().empty())
{
if (map()->selectedObjects().size() <= max_objects_for_handle_display)
{
// Try to find object node.
auto best_distance_sq = std::numeric_limits<double>::max();
for (const auto object : map()->selectedObjects())
{
MapCoordF handle_pos;
auto hover_point = findHoverPoint(cur_map_widget->mapToViewport(cursor_pos), cur_map_widget, object, true, &handle_pos);
if (hover_point == no_point)
continue;
auto distance_sq = cursor_pos.distanceSquaredTo(handle_pos);
if (distance_sq < best_distance_sq)
{
new_hover_state |= OverObjectNode;
new_hover_object = object;
new_hover_point = hover_point;
best_distance_sq = distance_sq;
handle_offset = handle_pos - cursor_pos;
}
}
if (!new_hover_state.testFlag(OverObjectNode))
{
// No object node found. Try to find path object edge.
/// \todo De-duplicate: Copied from EditLineTool
auto click_tolerance_sq = qPow(0.001 * cur_map_widget->getMapView()->pixelToLength(clickTolerance()), 2);
for (auto object : map()->selectedObjects())
{
if (object->getType() == Object::Path)
{
PathObject* path = object->asPath();
float distance_sq;
PathCoord path_coord;
path->calcClosestPointOnPath(cursor_pos, distance_sq, path_coord);
if (distance_sq >= +0.0 &&
distance_sq < best_distance_sq &&
distance_sq < qMax(click_tolerance_sq, qPow(path->getSymbol()->calculateLargestLineExtent(map()), 2)))
{
new_hover_state |= OverPathEdge;
new_hover_object = path;
new_hover_point = path_coord.index;
best_distance_sq = distance_sq;
handle_offset = path_coord.pos - cursor_pos;
}
}
}
}
}
if (!new_hover_state.testFlag(OverObjectNode) && selection_extent.isValid())
{
QRectF selection_extent_viewport = cur_map_widget->mapToViewport(selection_extent);
if (pointOverRectangle(cur_map_widget->mapToViewport(cursor_pos), selection_extent_viewport))
{
new_hover_state |= OverFrame;
handle_offset = closestPointOnRect(cursor_pos, selection_extent) - cursor_pos;
}
}
}
if (new_hover_state != hover_state ||
new_hover_object != hover_object ||
new_hover_point != hover_point)
{
hover_state = new_hover_state;
// We have got a Map*, so we may get an non-const Object*.
hover_object = const_cast<Object*>(new_hover_object);
hover_point = new_hover_point;
if (hover_state != OverNothing)
start_drag_distance = 0;
else
start_drag_distance = Settings::getInstance().getStartDragDistancePx();
updateDirtyRect();
}
Q_ASSERT((hover_state.testFlag(OverObjectNode) || hover_state.testFlag(OverPathEdge)) == (hover_object != nullptr));
}
