void MapTool::
frame()
{
if (PROJECTION_FAILED)
return;
statsMan.start(StatsManager::EDITLINE);
//handle motion
Geometry::Point<double,3> pos = getPosition();
pos = crusta->mapToUnscaledGlobe(pos);
if (pos == prevPosition)
return;
switch (mode)
{
case MODE_DRAGGING:
{
MapManager* mapMan = crusta->getMapManager();
Shape*& curShape = mapMan->getActiveShape(toolId);
assert(curShape != NULL);
///\todo implement a way to check validity of curControl that doesn't suck
assert(curShape->isValid(curControl));
///\todo HACK: avoid moving control point if projection has failed Vis2010
float scaleFac = Vrui::getNavigationTransformation().getScaling();
if (scaleFac*Geometry::dist(pos, curControl.handle->pos) > 5.0)
return;
curShape->moveControlPoint(curControl, pos);
break;
}
case MODE_SELECTING_CONTROL:
{
Shape*& curShape = crusta->getMapManager()->getActiveShape(toolId);
if (curShape == NULL)
{
curControl = Shape::BAD_ID;
mode = MODE_IDLE;
}
else
{
selectControl(pos);
}
break;
}
case MODE_SELECTING_SHAPE:
{
selectShape(pos);
break;
}
default:
break;
}
statsMan.stop(StatsManager::EDITLINE);
}
void MapTool::
selectShape(const Geometry::Point<double,3>& pos)
{
MapManager* mapMan = crusta->getMapManager();
Shape*& curShape = mapMan->getActiveShape(toolId);
Shape* oldShape = curShape;
ShapePtrs shapes = getShapes();
double threshold = 1.0 / Vrui::getNavigationTransformation().getScaling();
threshold *= mapMan->getSelectDistance();
bool noShapeSelected = true;
for (ShapePtrs::iterator it=shapes.begin(); it!=shapes.end(); ++it)
{
double distance;
Shape::ControlId control = (*it)->select(pos, distance);
if (control!=Shape::BAD_ID && distance<=threshold)
{
curShape = *it;
threshold = distance;
noShapeSelected = false;
}
}
if (noShapeSelected && curShape!=NULL)
unselectShape(curShape, curControl);
//inform the manager that the active shape has changed
if (curShape != oldShape)
mapMan->updateActiveShape(toolId);
}
MapTool::
~MapTool()
{
MapManager* mapMan = crusta->getMapManager();
Shape*& curShape = mapMan->getActiveShape(toolId);
if (curShape != NULL)
{
unselectShape(curShape, curControl);
mapMan->updateActiveShape(toolId);
}
mapMan->unregisterMappingTool(toolId);
}
void MapTool::
selectControl(const Geometry::Point<double,3>& pos)
{
MapManager* mapMan = crusta->getMapManager();
Shape*& curShape = mapMan->getActiveShape(toolId);
assert(curShape != NULL);
curControl = Shape::BAD_ID;
double distance;
Shape::ControlId control = curShape->select(pos, distance,
mapMan->getPointSelectionBias());
if (control == Shape::BAD_ID)
return;
double threshold = 1.0 / Vrui::getNavigationTransformation().getScaling();
threshold *= mapMan->getSelectDistance();
if (distance > threshold)
return;
curControl = control;
}
