/* greebo: This calculates and constructs the pivot point of the selection.
* It cycles through all selected objects and creates its AABB. The origin point of the AABB
* is basically the pivot point. Pivot2World is therefore a translation from (0,0,0) to the calculated origin.
*
* The pivot point is also snapped to the grid.
*/
void RadiantSelectionSystem::ConstructPivot() const {
if (!_pivotChanged || _pivotMoving)
return;
_pivotChanged = false;
Vector3 objectPivot;
if (!nothingSelected()) {
{
// Create a local variable where the aabb information is stored
AABB bounds;
// Traverse through the selection and update the <bounds> variable
if (Mode() == eComponent) {
GlobalSceneGraph().traverse(BoundsSelectedComponent(bounds));
}
else {
GlobalSceneGraph().traverse(BoundsSelected(bounds));
}
// the <bounds> variable now contains the AABB of the selection, retrieve the origin
objectPivot = bounds.origin;
}
// Snap the pivot point to the grid
vector3_snap(objectPivot, GlobalGrid().getGridSize());
// The pivot2world matrix is just a translation from the world origin (0,0,0) to the object pivot
_pivot2world = Matrix4::getTranslation(objectPivot);
// Only rotation and scaling need further calculations
switch (_manipulatorMode) {
case eTranslate:
break;
case eRotate:
if (Mode() == eComponent) {
matrix4_assign_rotation_for_pivot(_pivot2world, _componentSelection.back());
}
else {
matrix4_assign_rotation_for_pivot(_pivot2world, _selection.back());
}
break;
case eScale:
if (Mode() == eComponent) {
matrix4_assign_rotation_for_pivot(_pivot2world, _componentSelection.back());
}
else {
matrix4_assign_rotation_for_pivot(_pivot2world, _selection.back());
}
break;
default:
break;
} // switch
}
}
// Applies the rotation vector <rotation> to the current selection
void RadiantSelectionSystem::rotate(const Quaternion& rotation) {
// Check if there is anything to do
if (!nothingSelected()) {
// Store the quaternion internally
_rotation = rotation;
// Perform the rotation according to the current mode
if (Mode() == eComponent) {
Scene_Rotate_Component_Selected(GlobalSceneGraph(), _rotation, _pivot2world.t().getVector3());
matrix4_assign_rotation_for_pivot(_pivot2world, _componentSelection.ultimate());
}
else {
Scene_Rotate_Selected(GlobalSceneGraph(), _rotation, _pivot2world.t().getVector3());
matrix4_assign_rotation_for_pivot(_pivot2world, _selection.ultimate());
}
// Update the views
SceneChangeNotify();
}
}
/* greebo: This calculates and constructs the pivot point of the selection.
* It cycles through all selected objects and creates its AABB. The origin point of the AABB
* is basically the pivot point. Pivot2World is therefore a translation from (0,0,0) to the calculated origin.
*
* The pivot point is also snapped to the grid.
*/
void RadiantSelectionSystem::ConstructPivot()
{
if (!_pivotChanged || _pivotMoving)
return;
_pivotChanged = false;
Vector3 objectPivot;
if (!nothingSelected())
{
if (_selectionInfo.entityCount == 1 && _selectionInfo.totalCount == 1 &&
registry::getValue<bool>(RKEY_ROTATION_PIVOT))
{
// Test, if a single entity is selected
scene::INodePtr node = ultimateSelected();
Entity* entity = Node_getEntity(node);
if (entity != NULL)
{
objectPivot = string::convert<Vector3>(
entity->getKeyValue("origin")
);
}
}
else {
// Create a local variable where the aabb information is stored
AABB bounds;
// Traverse through the selection and update the <bounds> variable
if (Mode() == eComponent)
{
ComponentBoundsAccumulator walker;
foreachSelected(walker);
bounds = walker.getBounds();
}
else {
// greebo: Traverse the current selection to accumulate the AABB
BoundsAccumulator walker;
foreachSelected(walker);
bounds = walker.getBounds();
}
// the <bounds> variable now contains the AABB of the selection, retrieve the origin
objectPivot = bounds.origin;
}
// Snap the pivot point to the grid (greebo: disabled this (issue #231))
//vector3_snap(objectPivot, GlobalGrid().getGridSize());
// The pivot2world matrix is just a translation from the world origin (0,0,0) to the object pivot
_pivot2world = Matrix4::getTranslation(objectPivot);
// Only rotation and scaling need further calculations
switch (_manipulatorMode) {
case eTranslate:
break;
case eRotate:
if (Mode() == eComponent) {
matrix4_assign_rotation_for_pivot(_pivot2world, _componentSelection.ultimate());
}
else {
matrix4_assign_rotation_for_pivot(_pivot2world, _selection.ultimate());
}
break;
case eScale:
if (Mode() == eComponent) {
matrix4_assign_rotation_for_pivot(_pivot2world, _componentSelection.ultimate());
}
else {
matrix4_assign_rotation_for_pivot(_pivot2world, _selection.ultimate());
}
break;
default:
break;
} // switch
}
}
