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1st installment of object/instance labels in 3D scene

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This commit is contained in:
Enrico Turri 2020-01-28 13:15:21 +01:00
parent 69549af9ac
commit d5b258c267
7 changed files with 190 additions and 0 deletions
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142
src/slic3r/GUI/GLCanvas3D.cpp
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@ -65,6 +65,10 @@
#include <chrono>
#endif // ENABLE_RENDER_STATISTICS
#if ENABLE_SHOW_SCENE_LABELS
#include <imgui/imgui_internal.h>
#endif // ENABLE_SHOW_SCENE_LABELS
static const float TRACKBALLSIZE = 0.8f;
static const float DEFAULT_BG_DARK_COLOR[3] = { 0.478f, 0.478f, 0.478f };
@ -1230,6 +1234,136 @@ void GLCanvas3D::LegendTexture::render(const GLCanvas3D& canvas) const
}
}
#if ENABLE_SHOW_SCENE_LABELS
void GLCanvas3D::Labels::show(bool show)
{
bool shown = is_shown();
if (shown != show)
{
wxGetApp().app_config->set("show_labels", show ? "1" : "0");
wxGetApp().app_config->save();
}
}
bool GLCanvas3D::Labels::is_shown() const
{
return wxGetApp().app_config->get("show_labels") == "1";
}
void GLCanvas3D::Labels::render(const GLCanvas3D& canvas) const
{
if (!m_enabled || !is_shown())
return;
const Camera& camera = canvas.get_camera();
const Model* model = canvas.get_model();
if (model == nullptr)
return;
Transform3d world_to_eye = camera.get_view_matrix();
Transform3d world_to_screen = camera.get_projection_matrix() * world_to_eye;
const std::array<int, 4>& viewport = camera.get_viewport();
struct Owner
{
int obj_idx;
int inst_idx;
BoundingBoxf3 world_box;
double eye_center_z;
std::string id_str;
bool selected;
};
// collect world bounding boxes from volumes
std::vector<Owner> owners;
const GLVolumeCollection& volumes = canvas.get_volumes();
for (const GLVolume* volume : volumes.volumes)
{
int obj_idx = volume->object_idx();
if ((0 <= obj_idx) && (obj_idx < (int)model->objects.size()))
{
int inst_idx = volume->instance_idx();
std::vector<Owner>::iterator it = std::find_if(owners.begin(), owners.end(), [obj_idx, inst_idx](const Owner& owner) {
return (owner.obj_idx == obj_idx) && (owner.inst_idx == inst_idx);
});
if (it != owners.end())
{
it->world_box.merge(volume->transformed_bounding_box());
it->selected &= volume->selected;
}
else
{
Owner owner;
owner.obj_idx = obj_idx;
owner.inst_idx = inst_idx;
owner.world_box = volume->transformed_bounding_box();
owner.selected = volume->selected;
owner.id_str = "object" + std::to_string(obj_idx) + "_inst##" + std::to_string(inst_idx);
owners.push_back(owner);
}
}
}
// calculate eye bounding boxes center zs
for (Owner& owner : owners)
{
owner.eye_center_z = (world_to_eye * owner.world_box.center())(2);
}
// sort owners by center eye zs and selection
std::sort(owners.begin(), owners.end(), [](const Owner& owner1, const Owner& owner2) {
if (!owner1.selected && owner2.selected)
return true;
else if (owner1.selected && !owner2.selected)
return false;
else
return (owner1.eye_center_z < owner2.eye_center_z);
});
ImGuiWrapper& imgui = *wxGetApp().imgui();
// render info windows
for (const Owner& owner : owners)
{
Vec3d screen_box_center = world_to_screen * owner.world_box.center();
float x = 0.0f;
float y = 0.0f;
if (camera.get_type() == Camera::Perspective)
{
x = (0.5f + 0.001f * 0.5f * (float)screen_box_center(0)) * viewport[2];
y = (0.5f - 0.001f * 0.5f * (float)screen_box_center(1)) * viewport[3];
}
else
{
x = (0.5f + 0.5f * (float)screen_box_center(0)) * viewport[2];
y = (0.5f - 0.5f * (float)screen_box_center(1)) * viewport[3];
}
if ((x < 0.0f) || (viewport[2] < x) || (y < 0.0f) || (viewport[3] < y))
continue;
ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, owner.selected ? 3.0f : 1.5f);
ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
ImGui::PushStyleColor(ImGuiCol_Border, owner.selected ? ImVec4(0.757f, 0.404f, 0.216f, 1.0f) : ImVec4(0.75f, 0.75f, 0.75f, 1.0f));
imgui.set_next_window_pos(x, y, ImGuiCond_Always, 0.5f, 0.5f);
imgui.begin(owner.id_str, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove);
ImGui::BringWindowToDisplayFront(ImGui::GetCurrentWindow());
float win_w = ImGui::GetWindowWidth();
std::string object_str = model->objects[owner.obj_idx]->name;
ImGui::SetCursorPosX(0.5f * (win_w - imgui.calc_text_size(object_str).x));
ImGui::AlignTextToFramePadding();
imgui.text(object_str);
std::string instance_str = _(L("Instance ")) + std::to_string(owner.inst_idx + 1);
ImGui::SetCursorPosX(0.5f * (win_w - imgui.calc_text_size(instance_str).x));
ImGui::AlignTextToFramePadding();
imgui.text(instance_str);
imgui.end();
ImGui::PopStyleColor();
ImGui::PopStyleVar(2);
}
}
#endif // ENABLE_SHOW_SCENE_LABELS
wxDEFINE_EVENT(EVT_GLCANVAS_SCHEDULE_BACKGROUND_PROCESS, SimpleEvent);
wxDEFINE_EVENT(EVT_GLCANVAS_OBJECT_SELECT, SimpleEvent);
wxDEFINE_EVENT(EVT_GLCANVAS_RIGHT_CLICK, RBtnEvent);
@ -2646,6 +2780,10 @@ void GLCanvas3D::on_char(wxKeyEvent& evt)
case 'a': { post_event(SimpleEvent(EVT_GLCANVAS_ARRANGE)); break; }
case 'B':
case 'b': { zoom_to_bed(); break; }
#if ENABLE_SHOW_SCENE_LABELS
case 'E':
case 'e': { m_labels.show(!m_labels.is_shown()); m_dirty = true; break; }
#endif // ENABLE_SHOW_SCENE_LABELS
case 'I':
case 'i': { _update_camera_zoom(1.0); break; }
case 'K':
@ -4732,6 +4870,10 @@ void GLCanvas3D::_render_overlays() const
_render_undoredo_toolbar();
_render_view_toolbar();
#if ENABLE_SHOW_SCENE_LABELS
m_labels.render(*this);
#endif // ENABLE_SHOW_SCENE_LABELS
if ((m_layers_editing.last_object_id >= 0) && (m_layers_editing.object_max_z() > 0.0f))
m_layers_editing.render_overlay(*this);