Constrained gizmo-scaling -> keep initial ctrl key status while dragging

This commit is contained in:
Enrico Turri 2019-05-10 13:50:25 +02:00
parent 86d466688b
commit efcc38f717
2 changed files with 9 additions and 7 deletions

View File

@ -58,7 +58,8 @@ void GLGizmoScale3D::on_start_dragging(const Selection& selection)
if (m_hover_id != -1) if (m_hover_id != -1)
{ {
m_starting.drag_position = m_grabbers[m_hover_id].center; m_starting.drag_position = m_grabbers[m_hover_id].center;
m_starting.box = (wxGetKeyState(WXK_CONTROL) && (m_hover_id < 6)) ? m_box : selection.get_bounding_box(); m_starting.ctrl_down = wxGetKeyState(WXK_CONTROL);
m_starting.box = (m_starting.ctrl_down && (m_hover_id < 6)) ? m_box : selection.get_bounding_box();
const Vec3d& center = m_starting.box.center(); const Vec3d& center = m_starting.box.center();
m_starting.pivots[0] = m_transform * Vec3d(m_starting.box.max(0), center(1), center(2)); m_starting.pivots[0] = m_transform * Vec3d(m_starting.box.max(0), center(1), center(2));
@ -161,7 +162,7 @@ void GLGizmoScale3D::on_render(const Selection& selection) const
Vec3d offset_y = m_offsets_transform * Vec3d(0.0, (double)Offset, 0.0); Vec3d offset_y = m_offsets_transform * Vec3d(0.0, (double)Offset, 0.0);
Vec3d offset_z = m_offsets_transform * Vec3d(0.0, 0.0, (double)Offset); Vec3d offset_z = m_offsets_transform * Vec3d(0.0, 0.0, (double)Offset);
bool ctrl_down = wxGetKeyState(WXK_CONTROL); bool ctrl_down = (m_dragging && m_starting.ctrl_down) || (!m_dragging && wxGetKeyState(WXK_CONTROL));
// x axis // x axis
m_grabbers[0].center = m_transform * Vec3d(m_box.min(0), center(1), center(2)) - offset_x; m_grabbers[0].center = m_transform * Vec3d(m_box.min(0), center(1), center(2)) - offset_x;
@ -311,7 +312,7 @@ void GLGizmoScale3D::do_scale_x(const UpdateData& data)
if (ratio > 0.0) if (ratio > 0.0)
{ {
m_scale(0) = m_starting.scale(0) * ratio; m_scale(0) = m_starting.scale(0) * ratio;
if (wxGetKeyState(WXK_CONTROL)) if (m_starting.ctrl_down)
{ {
double local_offset = 0.5 * (m_scale(0) - m_starting.scale(0)) * m_starting.box.size()(0); double local_offset = 0.5 * (m_scale(0) - m_starting.scale(0)) * m_starting.box.size()(0);
Vec3d local_offset_vec = Vec3d((m_hover_id == 0) ? -local_offset : local_offset, 0.0, 0.0); Vec3d local_offset_vec = Vec3d((m_hover_id == 0) ? -local_offset : local_offset, 0.0, 0.0);
@ -328,7 +329,7 @@ void GLGizmoScale3D::do_scale_y(const UpdateData& data)
if (ratio > 0.0) if (ratio > 0.0)
{ {
m_scale(1) = m_starting.scale(1) * ratio; m_scale(1) = m_starting.scale(1) * ratio;
if (wxGetKeyState(WXK_CONTROL)) if (m_starting.ctrl_down)
{ {
double local_offset = 0.5 * (m_scale(1) - m_starting.scale(1)) * m_starting.box.size()(1); double local_offset = 0.5 * (m_scale(1) - m_starting.scale(1)) * m_starting.box.size()(1);
Vec3d local_offset_vec = Vec3d(0.0, (m_hover_id == 2) ? -local_offset : local_offset, 0.0); Vec3d local_offset_vec = Vec3d(0.0, (m_hover_id == 2) ? -local_offset : local_offset, 0.0);
@ -345,7 +346,7 @@ void GLGizmoScale3D::do_scale_z(const UpdateData& data)
if (ratio > 0.0) if (ratio > 0.0)
{ {
m_scale(2) = m_starting.scale(2) * ratio; m_scale(2) = m_starting.scale(2) * ratio;
if (wxGetKeyState(WXK_CONTROL)) if (m_starting.ctrl_down)
{ {
double local_offset = 0.5 * (m_scale(2) - m_starting.scale(2)) * m_starting.box.size()(2); double local_offset = 0.5 * (m_scale(2) - m_starting.scale(2)) * m_starting.box.size()(2);
Vec3d local_offset_vec = Vec3d(0.0, 0.0, (m_hover_id == 4) ? -local_offset : local_offset); Vec3d local_offset_vec = Vec3d(0.0, 0.0, (m_hover_id == 4) ? -local_offset : local_offset);
@ -367,7 +368,7 @@ double GLGizmoScale3D::calc_ratio(const UpdateData& data) const
{ {
double ratio = 0.0; double ratio = 0.0;
Vec3d pivot = (wxGetKeyState(WXK_CONTROL) && (m_hover_id < 6)) ? m_starting.pivots[m_hover_id] : m_starting.box.center(); Vec3d pivot = (m_starting.ctrl_down && (m_hover_id < 6)) ? m_starting.pivots[m_hover_id] : m_starting.box.center();
Vec3d starting_vec = m_starting.drag_position - pivot; Vec3d starting_vec = m_starting.drag_position - pivot;
double len_starting_vec = starting_vec.norm(); double len_starting_vec = starting_vec.norm();

View File

@ -17,8 +17,9 @@ class GLGizmoScale3D : public GLGizmoBase
Vec3d drag_position; Vec3d drag_position;
BoundingBoxf3 box; BoundingBoxf3 box;
Vec3d pivots[6]; Vec3d pivots[6];
bool ctrl_down;
StartingData() : scale(Vec3d::Ones()), drag_position(Vec3d::Zero()) { for (int i = 0; i < 5; ++i) { pivots[i] = Vec3d::Zero(); } } StartingData() : scale(Vec3d::Ones()), drag_position(Vec3d::Zero()), ctrl_down(false) { for (int i = 0; i < 5; ++i) { pivots[i] = Vec3d::Zero(); } }
}; };
mutable BoundingBoxf3 m_box; mutable BoundingBoxf3 m_box;