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OrcaSlicer/src/slic3r/GUI/Gizmos/GLGizmoScale.cpp
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#include "GLGizmoScale.hpp"
#include "slic3r/GUI/GLCanvas3D.hpp"
#include "slic3r/GUI/GUI_App.hpp"
#include "slic3r/GUI/Plater.hpp"
#include <glad/gl.h>
#include <wx/utils.h>
namespace Slic3r {
namespace GUI {
const float GLGizmoScale3D::Offset = 5.0f;
// get intersection of ray and plane
Vec3d GetIntersectionOfRayAndPlane(Vec3d ray_position, Vec3d ray_dir, Vec3d plane_position, Vec3d plane_normal)
{
double t = (plane_normal.dot(plane_position) - plane_normal.dot(ray_position)) / (plane_normal.dot(ray_dir));
Vec3d intersection = ray_position + t * ray_dir;
return intersection;
}
//BBS: GUI refactor: add obj manipulation
GLGizmoScale3D::GLGizmoScale3D(GLCanvas3D& parent, const std::string& icon_filename, unsigned int sprite_id, GizmoObjectManipulation* obj_manipulation)
: GLGizmoBase(parent, icon_filename, sprite_id)
, m_scale(Vec3d::Ones())
, m_offset(Vec3d::Zero())
, m_snap_step(0.05)
//BBS: GUI refactor: add obj manipulation
, m_object_manipulation(obj_manipulation)
{
m_grabber_connections[0].grabber_indices = { 0, 1 };
m_grabber_connections[1].grabber_indices = { 2, 3 };
m_grabber_connections[2].grabber_indices = { 4, 5 };
m_grabber_connections[3].grabber_indices = { 6, 7 };
m_grabber_connections[4].grabber_indices = { 7, 8 };
m_grabber_connections[5].grabber_indices = { 8, 9 };
m_grabber_connections[6].grabber_indices = { 9, 6 };
}
const Vec3d &GLGizmoScale3D::get_scale()
{
if (m_object_manipulation) {
Vec3d cache_scale = m_object_manipulation->get_cache().scale.cwiseQuotient(Vec3d(100,100,100));
Vec3d temp_scale = cache_scale.cwiseProduct(m_scale);
m_object_manipulation->limit_scaling_ratio(temp_scale);
m_scale = temp_scale.cwiseQuotient(cache_scale);
}
return m_scale;
}
std::string GLGizmoScale3D::get_tooltip() const
{
const Selection& selection = m_parent.get_selection();
bool single_instance = selection.is_single_full_instance();
bool single_volume = selection.is_single_volume_or_modifier();
Vec3f scale = 100.0f * Vec3f::Ones();
if (single_instance)
scale = 100.0f * selection.get_first_volume()->get_instance_scaling_factor().cast<float>();
else if (single_volume)
scale = 100.0f * selection.get_first_volume()->get_volume_scaling_factor().cast<float>();
if (m_hover_id == 0 || m_hover_id == 1 || m_grabbers[0].dragging || m_grabbers[1].dragging)
return "X: " + format(scale.x(), 4) + "%";
else if (m_hover_id == 2 || m_hover_id == 3 || m_grabbers[2].dragging || m_grabbers[3].dragging)
return "Y: " + format(scale.y(), 4) + "%";
else if (m_hover_id == 4 || m_hover_id == 5 || m_grabbers[4].dragging || m_grabbers[5].dragging)
return "Z: " + format(scale.z(), 4) + "%";
else if (m_hover_id == 6 || m_hover_id == 7 || m_hover_id == 8 || m_hover_id == 9 ||
m_grabbers[6].dragging || m_grabbers[7].dragging || m_grabbers[8].dragging || m_grabbers[9].dragging)
{
std::string tooltip = "X: " + format(scale.x(), 2) + "%\n";
tooltip += "Y: " + format(scale.y(), 2) + "%\n";
tooltip += "Z: " + format(scale.z(), 2) + "%";
return tooltip;
}
else
return "";
}
bool GLGizmoScale3D::on_mouse(const wxMouseEvent &mouse_event)
{
if (mouse_event.Dragging()) {
if (m_dragging) {
// Apply new temporary scale factors
TransformationType transformation_type;
if (wxGetApp().obj_manipul()->is_local_coordinates())
transformation_type.set_local();
else if (wxGetApp().obj_manipul()->is_instance_coordinates())
transformation_type.set_instance();
transformation_type.set_relative();
if (mouse_event.AltDown())
transformation_type.set_independent();
Selection& selection = m_parent.get_selection();
selection.scale_and_translate(get_scale(), get_offset(), transformation_type);
}
}
return use_grabbers(mouse_event);
}
void GLGizmoScale3D::data_changed(bool is_serializing)
{
const Selection &selection = m_parent.get_selection();
bool enable_scale_xyz = selection.is_single_full_instance() ||
selection.is_single_volume_or_modifier();
for (unsigned int i = 0; i < 6; ++i)
m_grabbers[i].enabled = enable_scale_xyz;
set_scale(Vec3d::Ones());
change_cs_by_selection();
}
void GLGizmoScale3D::enable_ununiversal_scale(bool enable)
{
for (unsigned int i = 0; i < 6; ++i)
m_grabbers[i].enabled = enable;
}
bool GLGizmoScale3D::on_init()
{
for (int i = 0; i < 10; ++i)
{
m_grabbers.push_back(Grabber());
}
double half_pi = 0.5 * (double)PI;
// BBS
m_grabbers[4].enabled = false;
m_shortcut_key = WXK_CONTROL_S;
return true;
}
std::string GLGizmoScale3D::on_get_name() const
{
if (!on_is_activable() && m_state == EState::Off) {
return _u8L_CONTEXT("Scale", "Verb") + ":\n" + _u8L("Please select at least one object.");
} else {
return _u8L_CONTEXT("Scale", "Verb");
}
}
bool GLGizmoScale3D::on_is_activable() const
{
const Selection& selection = m_parent.get_selection();
return !selection.is_empty() && !selection.is_wipe_tower();
}
void GLGizmoScale3D::on_set_state() {
if (get_state() == On) {
m_last_selected_obejct_idx = -1;
m_last_selected_volume_idx = -1;
change_cs_by_selection();
}
}
static int constraint_id(int grabber_id)
{
static const std::vector<int> id_map = {1, 0, 3, 2, 5, 4, 8, 9, 6, 7};
return (0 <= grabber_id && grabber_id < (int) id_map.size()) ? id_map[grabber_id] : -1;
}
void GLGizmoScale3D::on_start_dragging()
{
if (m_hover_id != -1) {
auto grabbers_transform = m_grabbers_tran.get_matrix();
m_starting.drag_position = grabbers_transform * m_grabbers[m_hover_id].center;
m_starting.plane_center = grabbers_transform * m_grabbers[4].center; // plane_center = bottom center
m_starting.plane_nromal = (grabbers_transform * m_grabbers[5].center - grabbers_transform * m_grabbers[4].center).normalized();
m_starting.ctrl_down = wxGetKeyState(WXK_CONTROL);
m_starting.box = m_bounding_box;
m_starting.center = m_center;
m_starting.instance_center = m_instance_center;
const Vec3d box_half_size = 0.5 * m_bounding_box.size();
m_starting.local_pivots[0] = Vec3d(box_half_size.x(), 0.0, -box_half_size.z());
m_starting.local_pivots[1] = Vec3d(-box_half_size.x(), 0.0, -box_half_size.z());
m_starting.local_pivots[2] = Vec3d(0.0, box_half_size.y(), -box_half_size.z());
m_starting.local_pivots[3] = Vec3d(0.0, -box_half_size.y(), -box_half_size.z());
m_starting.local_pivots[4] = Vec3d(0.0, 0.0, box_half_size.z());
m_starting.local_pivots[5] = Vec3d(0.0, 0.0, -box_half_size.z());
for (size_t i = 0; i < 6; i++) {
m_starting.pivots[i] = grabbers_transform * m_starting.local_pivots[i]; // todo delete
}
m_starting.constraint_position = grabbers_transform * m_grabbers[constraint_id(m_hover_id)].center;
m_scale = m_starting.scale = Vec3d::Ones() ;
m_offset = Vec3d::Zero();
}
}
void GLGizmoScale3D::on_stop_dragging()
{
m_parent.do_scale(L("Gizmo-Scale"));
m_starting.ctrl_down = false;
}
void GLGizmoScale3D::on_dragging(const UpdateData& data)
{
if ((m_hover_id == 0) || (m_hover_id == 1))
do_scale_along_axis(X, data);
else if ((m_hover_id == 2) || (m_hover_id == 3))
do_scale_along_axis(Y, data);
else if ((m_hover_id == 4) || (m_hover_id == 5))
do_scale_along_axis(Z, data);
else if (m_hover_id >= 6)
do_scale_uniform(data);
}
void GLGizmoScale3D::update_grabbers_data()
{
const Selection &selection = m_parent.get_selection();
const auto &[box, box_trafo] = selection.get_bounding_box_in_current_reference_system();
m_bounding_box = box;
m_center = box_trafo.translation();
m_grabbers_tran.set_matrix(box_trafo);
m_instance_center = (selection.is_single_full_instance() || selection.is_single_volume_or_modifier()) ? selection.get_first_volume()->get_instance_offset() : m_center;
const Vec3d box_half_size = 0.5 * m_bounding_box.size();
bool ctrl_down = wxGetKeyState(WXK_CONTROL);
bool single_instance = selection.is_single_full_instance();
bool single_volume = selection.is_single_modifier() || selection.is_single_volume();
// x axis
m_grabbers[0].center = Vec3d(-(box_half_size.x()), 0.0, -box_half_size.z());
m_grabbers[0].color = (ctrl_down && m_hover_id == 1) ? CONSTRAINED_COLOR : AXES_COLOR[0];
m_grabbers[1].center = Vec3d(box_half_size.x(), 0.0, -box_half_size.z());
m_grabbers[1].color = (ctrl_down && m_hover_id == 0) ? CONSTRAINED_COLOR : AXES_COLOR[0];
// y axis
m_grabbers[2].center = Vec3d(0.0, -(box_half_size.y()), -box_half_size.z());
m_grabbers[2].color = (ctrl_down && m_hover_id == 3) ? CONSTRAINED_COLOR : AXES_COLOR[1];
m_grabbers[3].center = Vec3d(0.0, box_half_size.y(), -box_half_size.z());
m_grabbers[3].color = (ctrl_down && m_hover_id == 2) ? CONSTRAINED_COLOR : AXES_COLOR[1];
// z axis do not show 4
m_grabbers[4].center = Vec3d(0.0, 0.0, -(box_half_size.z()));
m_grabbers[4].enabled = false;
m_grabbers[5].center = Vec3d(0.0, 0.0, box_half_size.z());
m_grabbers[5].color = (ctrl_down && m_hover_id == 4) ? CONSTRAINED_COLOR : AXES_COLOR[2];
// uniform
m_grabbers[6].center = Vec3d(-box_half_size.x(), -box_half_size.y(), -box_half_size.z());
m_grabbers[6].color = (ctrl_down && m_hover_id == 8) ? CONSTRAINED_COLOR : GRABBER_UNIFORM_COL;
m_grabbers[7].center = Vec3d(box_half_size.x(), -box_half_size.y(), -box_half_size.z());
m_grabbers[7].color = (ctrl_down && m_hover_id == 9) ? CONSTRAINED_COLOR : GRABBER_UNIFORM_COL;
m_grabbers[8].center = Vec3d(box_half_size.x(), box_half_size.y(), -box_half_size.z());
m_grabbers[8].color = (ctrl_down && m_hover_id == 6) ? CONSTRAINED_COLOR : GRABBER_UNIFORM_COL;
m_grabbers[9].center = Vec3d(-box_half_size.x(), box_half_size.y(), -box_half_size.z());
m_grabbers[9].color = (ctrl_down && m_hover_id == 7) ? CONSTRAINED_COLOR : GRABBER_UNIFORM_COL;
for (int i = 0; i < 6; ++i) {
//m_grabbers[i].color = AXES_COLOR[i / 2];
m_grabbers[i].hover_color = AXES_HOVER_COLOR[i / 2];
}
for (int i = 6; i < 10; ++i) {
//m_grabbers[i].color = GRABBER_UNIFORM_COL;
m_grabbers[i].hover_color = GRABBER_UNIFORM_HOVER_COL;
}
for (int i = 0; i < 10; ++i) {
m_grabbers[i].matrix = m_grabbers_tran.get_matrix();
}
}
void GLGizmoScale3D::change_cs_by_selection() {
int obejct_idx, volume_idx;
ModelVolume *model_volume = m_parent.get_selection().get_selected_single_volume(obejct_idx, volume_idx);
if (m_last_selected_obejct_idx == obejct_idx && m_last_selected_volume_idx == volume_idx) { return; }
m_last_selected_obejct_idx = obejct_idx;
m_last_selected_volume_idx = volume_idx;
if (m_parent.get_selection().is_multiple_full_object()) {
m_object_manipulation->set_coordinates_type(ECoordinatesType::World);
} else if (model_volume) {
m_object_manipulation->set_coordinates_type(ECoordinatesType::Local);
}
}
void GLGizmoScale3D::on_render()
{
glsafe(::glClear(GL_DEPTH_BUFFER_BIT));
glsafe(::glEnable(GL_DEPTH_TEST));
update_grabbers_data();
#if !SLIC3R_OPENGL_ES
if (!OpenGLManager::get_gl_info().is_core_profile())
glsafe(::glLineWidth((m_hover_id != -1) ? 2.0f : 1.5f));
#endif // !SLIC3R_OPENGL_ES
const float grabber_mean_size = (float)((m_bounding_box.size().x() + m_bounding_box.size().y() + m_bounding_box.size().z()) / 3.0);
//draw connections
#if SLIC3R_OPENGL_ES
GLShaderProgram* shader = wxGetApp().get_shader("dashed_lines");
#else
GLShaderProgram* shader = OpenGLManager::get_gl_info().is_core_profile() ? wxGetApp().get_shader("dashed_thick_lines") : wxGetApp().get_shader("flat");
#endif // SLIC3R_OPENGL_ES
if (shader != nullptr) {
shader->start_using();
// BBS: when select multiple objects, uniform scale can be deselected, display the connection(4,5)
//if (single_instance || single_volume) {
const Camera& camera = wxGetApp().plater()->get_camera();
shader->set_uniform("view_model_matrix", camera.get_view_matrix() * m_grabbers_tran.get_matrix());
shader->set_uniform("projection_matrix", camera.get_projection_matrix());
#if !SLIC3R_OPENGL_ES
if (OpenGLManager::get_gl_info().is_core_profile()) {
#endif // !SLIC3R_OPENGL_ES
const std::array<int, 4>& viewport = camera.get_viewport();
shader->set_uniform("viewport_size", Vec2d(double(viewport[2]), double(viewport[3])));
shader->set_uniform("width", 0.25f);
shader->set_uniform("gap_size", 0.0f);
#if !SLIC3R_OPENGL_ES
}
#endif // !SLIC3R_OPENGL_ES
if (m_grabbers[4].enabled && m_grabbers[5].enabled)
render_grabbers_connection(4, 5, m_grabbers[4].color);
render_grabbers_connection(6, 7, m_grabbers[2].color);
render_grabbers_connection(7, 8, m_grabbers[2].color);
render_grabbers_connection(8, 9, m_grabbers[0].color);
render_grabbers_connection(9, 6, m_grabbers[0].color);
shader->stop_using();
}
// draw grabbers
shader = wxGetApp().get_shader("gouraud_light");
if (shader != nullptr) {
shader->start_using();
shader->set_uniform("emission_factor", 0.1f);
render_grabbers(grabber_mean_size);
shader->stop_using();
}
}
void GLGizmoScale3D::on_register_raycasters_for_picking()
{
// the gizmo grabbers are rendered on top of the scene, so the raytraced picker should take it into account
m_parent.set_raycaster_gizmos_on_top(true);
}
void GLGizmoScale3D::on_unregister_raycasters_for_picking()
{
m_parent.set_raycaster_gizmos_on_top(false);
}
void GLGizmoScale3D::render_grabbers_connection(unsigned int id_1, unsigned int id_2, const ColorRGBA& color)
{
auto grabber_connection = [this](unsigned int id_1, unsigned int id_2) {
for (int i = 0; i < int(m_grabber_connections.size()); ++i) {
if (m_grabber_connections[i].grabber_indices.first == id_1 && m_grabber_connections[i].grabber_indices.second == id_2)
return i;
}
return -1;
};
const int id = grabber_connection(id_1, id_2);
if (id == -1)
return;
if (!m_grabber_connections[id].model.is_initialized() ||
!m_grabber_connections[id].old_v1.isApprox(m_grabbers[id_1].center) ||
!m_grabber_connections[id].old_v2.isApprox(m_grabbers[id_2].center)) {
m_grabber_connections[id].old_v1 = m_grabbers[id_1].center;
m_grabber_connections[id].old_v2 = m_grabbers[id_2].center;
m_grabber_connections[id].model.reset();
GLModel::Geometry init_data;
init_data.format = { GLModel::Geometry::EPrimitiveType::Lines, GLModel::Geometry::EVertexLayout::P3 };
init_data.reserve_vertices(2);
init_data.reserve_indices(2);
// vertices
init_data.add_vertex((Vec3f)m_grabbers[id_1].center.cast<float>());
init_data.add_vertex((Vec3f)m_grabbers[id_2].center.cast<float>());
// indices
init_data.add_line(0, 1);
m_grabber_connections[id].model.init_from(std::move(init_data));
}
m_grabber_connections[id].model.set_color(color);
// ORCA: OpenGL Core Profile
#if !SLIC3R_OPENGL_ES
if (!OpenGLManager::get_gl_info().is_core_profile()) {
glLineStipple(1, 0x0FFF);
glEnable(GL_LINE_STIPPLE);
}
#endif // !SLIC3R_OPENGL_ES
m_grabber_connections[id].model.render();
#if !SLIC3R_OPENGL_ES
if (!OpenGLManager::get_gl_info().is_core_profile())
glDisable(GL_LINE_STIPPLE);
#endif // !SLIC3R_OPENGL_ES
}
//BBS: add input window for move
void GLGizmoScale3D::on_render_input_window(float x, float y, float bottom_limit)
{
if (m_object_manipulation)
m_object_manipulation->do_render_scale_input_window(m_imgui, "Scale", x, y, bottom_limit);
}
void GLGizmoScale3D::do_scale_along_axis(Axis axis, const UpdateData& data)
{
double ratio = calc_ratio(data);
if (ratio > 0.0)
{
m_scale(axis) = m_starting.scale(axis) * ratio;
if (m_starting.ctrl_down && abs(ratio-1.0f)>0.001) {
double local_offset = 0.5 * (m_scale(axis) - m_starting.scale(axis)) * m_starting.box.size()(axis);
if (m_hover_id == 2 * axis) {
local_offset *= -1.0;
}
Vec3d local_offset_vec;
switch (axis)
{
case X: { local_offset_vec = local_offset * Vec3d::UnitX(); break; }
case Y: { local_offset_vec = local_offset * Vec3d::UnitY(); break;}
case Z: { local_offset_vec = local_offset * Vec3d::UnitZ(); break;
}
default: break;
}
if (m_object_manipulation->is_world_coordinates()) {
m_offset = local_offset_vec;
} else {//if (m_object_manipulation->is_instance_coordinates())
m_offset = m_grabbers_tran.get_matrix_no_offset() * local_offset_vec;
}
}
else
m_offset = Vec3d::Zero();
}
}
void GLGizmoScale3D::do_scale_uniform(const UpdateData& data)
{
double ratio = calc_ratio(data);
if (ratio > 0.0)
{
m_scale = m_starting.scale * ratio;
if (m_starting.ctrl_down && abs(ratio-1.0f)>0.001) {
m_scale.z() = m_starting.scale.z();
double local_offset_x = 0.5 * (m_scale.x() - m_starting.scale.x()) * m_starting.box.size().x();
double local_offset_y = 0.5 * (m_scale.y() - m_starting.scale.y()) * m_starting.box.size().y();
Vec3d local_offset_vec = Vec3d::Zero();
switch (m_hover_id)
{
case 6: { local_offset_vec = Vec3d(-local_offset_x, -local_offset_y, 0.0); break; }
case 7: { local_offset_vec = Vec3d( local_offset_x, -local_offset_y, 0.0); break; }
case 8: { local_offset_vec = Vec3d( local_offset_x, local_offset_y, 0.0); break; }
case 9: { local_offset_vec = Vec3d(-local_offset_x, local_offset_y, 0.0); break; }
default: break;
}
if (m_object_manipulation->is_world_coordinates()) {
m_offset = local_offset_vec;
} else {
m_offset = m_grabbers_tran.get_matrix_no_offset() * local_offset_vec;
}
} else {
m_offset = Vec3d::Zero();
}
}
}
double GLGizmoScale3D::calc_ratio(const UpdateData& data) const
{
double ratio = 0.0;
Vec3d pivot = (m_starting.ctrl_down && (m_hover_id < 6)) ? m_starting.constraint_position : m_starting.plane_center; // plane_center = bottom center
Vec3d starting_vec = m_starting.drag_position - pivot;
double len_starting_vec = starting_vec.norm();
if (len_starting_vec != 0.0)
{
Vec3d mouse_dir = data.mouse_ray.unit_vector();
Vec3d plane_normal = m_starting.plane_nromal;
if (m_hover_id == 5) {
// get z-axis moving plane normal
Vec3d plane_vec = mouse_dir.cross(m_starting.plane_nromal);
plane_normal = plane_vec.cross(m_starting.plane_nromal);
}
plane_normal = plane_normal.normalized();
// finds the intersection of the mouse ray with the plane that the drag point moves
// use ray-plane intersection see i.e. https://en.wikipedia.org/wiki/Line%E2%80%93plane_intersection
auto dot_value = (plane_normal.dot(mouse_dir));
auto angle = Geometry::rad2deg(acos(dot_value));
auto big_than_min_angle = abs(angle) < 95 && abs(angle) > 85;
if (big_than_min_angle) {
return 1;
}
Vec3d inters = GetIntersectionOfRayAndPlane(data.mouse_ray.a, mouse_dir, m_starting.drag_position, plane_normal);
Vec3d inters_vec = inters - m_starting.drag_position;
// finds projection of the vector along the staring direction
double proj = inters_vec.dot(starting_vec.normalized());
ratio = (len_starting_vec + proj) / len_starting_vec;
}
if (wxGetKeyState(WXK_SHIFT))
ratio = m_snap_step * (double)std::round(ratio / m_snap_step);
return ratio;
}
} // namespace GUI
} // namespace Slic3r
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