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);
}
}
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 gets called by SelectObserver if the user just clicks into the scene (without dragging)
* It checks for any possible targets (in the "line of click") and takes the actions according
* to the modifiers that are held down (Alt-Shift, etc.)
*/
void RadiantSelectionSystem::SelectPoint(const View& view,
const float device_point[2],
const float device_epsilon[2],
SelectionSystem::EModifier modifier,
bool face)
{
ASSERT_MESSAGE(fabs(device_point[0]) <= 1.0f && fabs(device_point[1]) <= 1.0f, "point-selection error");
// If the user is holding the replace modifiers (default: Alt-Shift), deselect the current selection
if (modifier == SelectionSystem::eReplace) {
if (face) {
setSelectedAllComponents(false);
}
else {
deselectAll();
}
}
#if defined (DEBUG_SELECTION)
g_render_clipped.destroy();
#endif
{
View scissored(view);
// Construct a selection test according to a small box with 2*epsilon edge length
ConstructSelectionTest(scissored, SelectionBoxForPoint(device_point, device_epsilon));
// Create a new SelectionPool instance and fill it with possible candidates
SelectionVolume volume(scissored);
// The possible candidates are stored in the SelectionPool
SelectionPool selector;
if (face) {
Scene_TestSelect_Component(selector, volume, scissored, eFace);
}
else {
Scene_TestSelect(selector, volume, scissored, Mode(), ComponentMode());
}
// Was the selection test successful (have we found anything to select)?
if (!selector.failed()) {
// Yes, now determine how we should interpret the click
switch (modifier) {
// If we are in toggle mode (Shift-Left-Click by default), just toggle the
// selection of the "topmost" item
case SelectionSystem::eToggle: {
SelectableSortedSet::iterator best = selector.begin();
// toggle selection of the object with least depth (=first in the list)
if ((*best).second->isSelected())
(*best).second->setSelected(false);
else
(*best).second->setSelected(true);
}
break;
// greebo: eReplace mode gets active as soon as the user holds the replace modifiers down
// and clicks (by default: Alt-Shift). eReplace is only active during the first click
// afterwards we are in cycle mode.
// if cycle mode not enabled, enable it
case SelectionSystem::eReplace: {
// select closest (=first in the list)
(*selector.begin()).second->setSelected(true);
}
break;
// select the next object in the list from the one already selected
// greebo: eCycle is set if the user keeps holding the replace modifiers (Alt-Shift)
// and does NOT move the mouse between the clicks, otherwise we fall back into eReplace mode
// Note: The mode is set in SelectObserver::testSelect()
case SelectionSystem::eCycle: {
// Cycle through the selection pool and activate the item right after the currently selected
SelectionPool::iterator i = selector.begin();
while (i != selector.end()) {
if ((*i).second->isSelected()) {
// unselect the currently selected one
(*i).second->setSelected(false);
// check if there is a "next" item in the list, if not: select the first item
++i;
if (i != selector.end()) {
i->second->setSelected(true);
}
else {
selector.begin()->second->setSelected(true);
}
break;
}
++i;
} // while
} // case
break;
default:
break;
} // switch
}
}
}
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 render::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);
}
}
}