/* greebo: This is called by the ManipulateObserver class on the mouseDown event. It checks, if a manipulator
* can be selected where the mouse is pointing to.
*/
bool RadiantSelectionSystem::SelectManipulator(const View& view, const Vector2& device_point, const Vector2& device_epsilon)
{
if (!nothingSelected() || (ManipulatorMode() == eDrag && Mode() == eComponent))
{
// Unselect any currently selected manipulators to be sure
_manipulator->setSelected(false);
// Test, if the current manipulator can be selected
if (!nothingSelected() || (ManipulatorMode() == eDrag && Mode() == eComponent))
{
View scissored(view);
ConstructSelectionTest(scissored, Rectangle::ConstructFromPoint(device_point, device_epsilon));
// The manipulator class checks on its own, if any of its components can be selected
_manipulator->testSelect(scissored, GetPivot2World());
}
// Save the pivot2world matrix
startMove();
// This is true, if a manipulator could be selected
_pivotMoving = _manipulator->isSelected();
// is a manipulator selected / the pivot moving?
if (_pivotMoving) {
Pivot2World pivot;
pivot.update(GetPivot2World(), view.GetModelview(), view.GetProjection(), view.GetViewport());
_manip2pivotStart = _pivot2worldStart.getFullInverse().getMultipliedBy(pivot._worldSpace);
Matrix4 device2manip;
ConstructDevice2Manip(device2manip, _pivot2worldStart, view.GetModelview(), view.GetProjection(), view.GetViewport());
_manipulator->getActiveComponent()->Construct(device2manip, device_point[0], device_point[1]);
_deviceStart = Vector2(device_point[0], device_point[1]);
_undoBegun = false;
}
SceneChangeNotify();
}
return _pivotMoving;
}
void RotateManipulator::testSelect (const View& view, const Matrix4& pivot2world)
{
m_pivot.update(pivot2world, view.GetModelview(), view.GetProjection(), view.GetViewport());
updateCircleTransforms();
SelectionPool selector;
{
{
Matrix4 local2view(matrix4_multiplied_by_matrix4(view.GetViewMatrix(), m_local2world_x));
SelectionIntersection best;
LineStrip_BestPoint(local2view, m_circle_x.m_vertices.data(), m_circle_x.m_vertices.size(), best);
selector.addSelectable(best, &m_selectable_x);
}
{
Matrix4 local2view(matrix4_multiplied_by_matrix4(view.GetViewMatrix(), m_local2world_y));
SelectionIntersection best;
LineStrip_BestPoint(local2view, m_circle_y.m_vertices.data(), m_circle_y.m_vertices.size(), best);
selector.addSelectable(best, &m_selectable_y);
}
{
Matrix4 local2view(matrix4_multiplied_by_matrix4(view.GetViewMatrix(), m_local2world_z));
SelectionIntersection best;
LineStrip_BestPoint(local2view, m_circle_z.m_vertices.data(), m_circle_z.m_vertices.size(), best);
selector.addSelectable(best, &m_selectable_z);
}
}
{
Matrix4 local2view(matrix4_multiplied_by_matrix4(view.GetViewMatrix(), m_pivot.m_viewpointSpace));
{
SelectionIntersection best;
LineLoop_BestPoint(local2view, m_circle_screen.m_vertices.data(), m_circle_screen.m_vertices.size(), best);
selector.addSelectable(best, &m_selectable_screen);
}
{
SelectionIntersection best;
Circle_BestPoint(local2view, eClipCullCW, m_circle_sphere.m_vertices.data(),
m_circle_sphere.m_vertices.size(), best);
selector.addSelectable(best, &m_selectable_sphere);
}
}
m_axis_screen = m_pivot.m_axis_screen;
if (!selector.failed()) {
(*selector.begin()).second->setSelected(true);
}
}
/* greebo: This is called by the ManipulateObserver class on the mouseDown event. It checks, if a manipulator
* can be selected where the mouse is pointing to.
*/
bool RadiantSelectionSystem::SelectManipulator(const View& view, const float device_point[2], const float device_epsilon[2]) {
if (!nothingSelected() || (ManipulatorMode() == eDrag && Mode() == eComponent)) {
#if defined (DEBUG_SELECTION)
g_render_clipped.destroy();
#endif
// Unselect any currently selected manipulators to be sure
_manipulator->setSelected(false);
// Test, if the current manipulator can be selected
if (!nothingSelected() || (ManipulatorMode() == eDrag && Mode() == eComponent)) {
View scissored(view);
ConstructSelectionTest(scissored, SelectionBoxForPoint(device_point, device_epsilon));
// The manipulator class checks on its own, if any of its components can be selected
_manipulator->testSelect(scissored, GetPivot2World());
}
// Save the pivot2world matrix
startMove();
// This is true, if a manipulator could be selected
_pivotMoving = _manipulator->isSelected();
// is a manipulator selected / the pivot moving?
if (_pivotMoving) {
Pivot2World pivot;
pivot.update(GetPivot2World(), view.GetModelview(), view.GetProjection(), view.GetViewport());
_manip2pivotStart = matrix4_multiplied_by_matrix4(matrix4_full_inverse(_pivot2worldStart), pivot.m_worldSpace);
Matrix4 device2manip;
ConstructDevice2Manip(device2manip, _pivot2worldStart, view.GetModelview(), view.GetProjection(), view.GetViewport());
_manipulator->GetManipulatable()->Construct(device2manip, device_point[0], device_point[1]);
_undoBegun = false;
}
SceneChangeNotify();
}
return _pivotMoving;
}
/* greebo: This "moves" the current selection. It calculates the device manipulation matrix
* and passes it to the currently active Manipulator.
*/
void RadiantSelectionSystem::MoveSelected(const View& view, const Vector2& devicePoint)
{
// Check, if the active manipulator is selected in the first place
if (_manipulator->isSelected()) {
// Initalise the undo system, if not yet done
if (!_undoBegun) {
_undoBegun = true;
GlobalUndoSystem().start();
}
Matrix4 device2manip;
ConstructDevice2Manip(device2manip, _pivot2worldStart, view.GetModelview(), view.GetProjection(), view.GetViewport());
Vector2 constrainedDevicePoint(devicePoint);
// Constrain the movement to the axes, if the modifier is held
if ((GlobalEventManager().getModifierState() & GDK_SHIFT_MASK) != 0)
{
// Get the movement delta relative to the start point
Vector2 delta = devicePoint - _deviceStart;
// Set the "minor" value of the movement to zero
if (fabs(delta[0]) > fabs(delta[1])) {
// X axis is major, reset the y-value to the start
delta[1] = 0;
}
else {
// Y axis is major, reset the x-value to the start
delta[0] = 0;
}
// Add the modified delta to the start point, constrained to one axis
constrainedDevicePoint = _deviceStart + delta;
}
// Get the manipulatable from the currently active manipulator (done by selection test)
// and call the Transform method (can be anything)
_manipulator->getActiveComponent()->Transform(_manip2pivotStart, device2manip, constrainedDevicePoint[0], constrainedDevicePoint[1]);
_requestWorkZoneRecalculation = true;
_requestSceneGraphChange = true;
requestIdleCallback();
}
}
void ScaleManipulator::testSelect (const View& view, const Matrix4& pivot2world)
{
m_pivot.update(pivot2world, view.GetModelview(), view.GetProjection(), view.GetViewport());
SelectionPool selector;
{
Matrix4 local2view(matrix4_multiplied_by_matrix4(view.GetViewMatrix(), m_pivot.m_worldSpace));
{
SelectionIntersection best;
Line_BestPoint(local2view, m_arrow_x.m_line, best);
selector.addSelectable(best, &m_selectable_x);
}
{
SelectionIntersection best;
Line_BestPoint(local2view, m_arrow_y.m_line, best);
selector.addSelectable(best, &m_selectable_y);
}
{
SelectionIntersection best;
Line_BestPoint(local2view, m_arrow_z.m_line, best);
selector.addSelectable(best, &m_selectable_z);
}
}
{
Matrix4 local2view(matrix4_multiplied_by_matrix4(view.GetViewMatrix(), m_pivot.m_viewpointSpace));
{
SelectionIntersection best;
Quad_BestPoint(local2view, eClipCullCW, m_quad_screen.m_quad, best);
selector.addSelectable(best, &m_selectable_screen);
}
}
if (!selector.failed()) {
(*selector.begin()).second->setSelected(true);
}
}
/* greebo: This "moves" the current selection. It calculates the device manipulation matrix
* and passes it to the currently active Manipulator.
*/
void RadiantSelectionSystem::MoveSelected(const View& view, const float device_point[2]) {
// Check, if the active manipulator is selected in the first place
if (_manipulator->isSelected()) {
// Initalise the undo system
if (!_undoBegun) {
_undoBegun = true;
GlobalUndoSystem().start();
}
Matrix4 device2manip;
ConstructDevice2Manip(device2manip, _pivot2worldStart, view.GetModelview(), view.GetProjection(), view.GetViewport());
// Get the manipulatable from the currently active manipulator (done by selection test)
// and call the Transform method (can be anything)
_manipulator->GetManipulatable()->Transform(_manip2pivotStart, device2manip, device_point[0], device_point[1]);
_requestWorkZoneRecalculation = true;
requestIdleCallback();
}
}
void TranslateManipulator::testSelect (const View& view, const Matrix4& pivot2world)
{
m_pivot.update(pivot2world, view.GetModelview(), view.GetProjection(), view.GetViewport());
SelectionPool selector;
Vector3 x = m_pivot.m_worldSpace.x().getVector3().getNormalised();
bool show_x = manipulator_show_axis(m_pivot, x);
Vector3 y = m_pivot.m_worldSpace.y().getVector3().getNormalised();
bool show_y = manipulator_show_axis(m_pivot, y);
Vector3 z = m_pivot.m_worldSpace.z().getVector3().getNormalised();
bool show_z = manipulator_show_axis(m_pivot, z);
{
Matrix4 local2view(matrix4_multiplied_by_matrix4(view.GetViewMatrix(), m_pivot.m_viewpointSpace));
{
SelectionIntersection best;
Quad_BestPoint(local2view, eClipCullCW, m_quad_screen.m_quad, best);
if (best.valid()) {
best = SelectionIntersection(0, 0);
selector.addSelectable(best, &m_selectable_screen);
}
}
}
{
Matrix4 local2view(matrix4_multiplied_by_matrix4(view.GetViewMatrix(), m_pivot.m_worldSpace));
#if defined(DEBUG_SELECTION)
g_render_clipped.construct(view.GetViewMatrix());
#endif
if (show_x) {
SelectionIntersection best;
Line_BestPoint(local2view, m_arrow_x.m_line, best);
Triangles_BestPoint(local2view, eClipCullCW, m_arrow_head_x.m_vertices.begin(),
m_arrow_head_x.m_vertices.end(), best);
selector.addSelectable(best, &m_selectable_x);
}
if (show_y) {
SelectionIntersection best;
Line_BestPoint(local2view, m_arrow_y.m_line, best);
Triangles_BestPoint(local2view, eClipCullCW, m_arrow_head_y.m_vertices.begin(),
m_arrow_head_y.m_vertices.end(), best);
selector.addSelectable(best, &m_selectable_y);
}
if (show_z) {
SelectionIntersection best;
Line_BestPoint(local2view, m_arrow_z.m_line, best);
Triangles_BestPoint(local2view, eClipCullCW, m_arrow_head_z.m_vertices.begin(),
m_arrow_head_z.m_vertices.end(), best);
selector.addSelectable(best, &m_selectable_z);
}
}
if (!selector.failed()) {
(*selector.begin()).second->setSelected(true);
}
}
void TranslateManipulator::testSelect(const View& view, const Matrix4& pivot2world) {
_pivot.update(pivot2world, view.GetModelview(), view.GetProjection(), view.GetViewport());
SelectionPool selector;
Vector3 x = _pivot._worldSpace.x().getVector3().getNormalised();
bool show_x = manipulator_show_axis(_pivot, x);
Vector3 y = _pivot._worldSpace.y().getVector3().getNormalised();
bool show_y = manipulator_show_axis(_pivot, y);
Vector3 z = _pivot._worldSpace.z().getVector3().getNormalised();
bool show_z = manipulator_show_axis(_pivot, z);
{
Matrix4 local2view(view.GetViewMatrix().getMultipliedBy(_pivot._viewpointSpace));
{
SelectionIntersection best;
Quad_BestPoint(local2view, eClipCullCW, &_quadScreen.front(), best);
if(best.valid())
{
best = SelectionIntersection(0, 0);
selector.addSelectable(best, &_selectableScreen);
}
}
}
{
Matrix4 local2view(view.GetViewMatrix().getMultipliedBy(_pivot._worldSpace));
if(show_x)
{
SelectionIntersection best;
Line_BestPoint(local2view, &_arrowX.front(), best);
Triangles_BestPoint(local2view, eClipCullCW, &_arrowHeadX._vertices.front(), &*(_arrowHeadX._vertices.end()-1)+1, best);
selector.addSelectable(best, &_selectableX);
}
if(show_y)
{
SelectionIntersection best;
Line_BestPoint(local2view, &_arrowY.front(), best);
Triangles_BestPoint(local2view, eClipCullCW, &_arrowHeadY._vertices.front(), &*(_arrowHeadY._vertices.end()-1)+1, best);
selector.addSelectable(best, &_selectableY);
}
if(show_z)
{
SelectionIntersection best;
Line_BestPoint(local2view, &_arrowZ.front(), best);
Triangles_BestPoint(local2view, eClipCullCW, &_arrowHeadZ._vertices.front(), &*(_arrowHeadZ._vertices.end()-1)+1, best);
selector.addSelectable(best, &_selectableZ);
}
}
// greebo: If any of the above arrows could be selected, select the first in the SelectionPool
if(!selector.failed()) {
(*selector.begin()).second->setSelected(true);
} else {
Selectable* selectable = NULL;
if (registry::getValue<bool>(RKEY_TRANSLATE_CONSTRAINED)) {
// None of the shown arrows (or quad) has been selected, select an axis based on the precedence
Matrix4 local2view(view.GetViewMatrix().getMultipliedBy(_pivot._worldSpace));
// Get the (relative?) distance from the mouse pointer to the manipulator
Vector3 delta = local2view.t().getProjected();
// Get the precedence (which axis has the absolute largest value in it)
bool xGreaterY = (fabs(delta.x()) > fabs(delta.y()));
// The precedence has to be interpreted according to which axes are visible
if (show_z) {
// Either XZ or YZ
if (show_y) {
// YZ
selectable = (xGreaterY) ? &_selectableY : &_selectableZ;
}
else {
// XZ
selectable = (xGreaterY) ? &_selectableX : &_selectableZ;
}
}
else {
// XY
selectable = (xGreaterY) ? &_selectableX : &_selectableY;
}
}
else {
// Don't constrain to axis, choose the freemove translator
selectable = &_selectableScreen;
}
// If everything went ok, there is a selectable available, add it
if (selectable != NULL) {
selector.addSelectable(SelectionIntersection(0,0), selectable);
selectable->setSelected(true);
}
}
}