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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2022 Alec Jacobson <alecjacobson@gmail.com>
// Copyright (C) 2018 Jérémie Dumas <jeremie.dumas@ens-lyon.org>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
////////////////////////////////////////////////////////////////////////////////
#include "ImGuiMenu.h"
#include "ImGuiHelpers.h"
#include <imgui.h>
#include <iostream>
namespace igl
{
namespace opengl
{
namespace glfw
{
namespace imgui
{
// Is this needed?
IGL_INLINE void ImGuiMenu::init( Viewer *_viewer, ImGuiPlugin *_plugin)
{ viewer = _viewer; plugin = _plugin; }
IGL_INLINE void ImGuiMenu::shutdown() { }
IGL_INLINE void ImGuiMenu::draw()
{
// Viewer settings
if (callback_draw_viewer_window) { callback_draw_viewer_window(); }
else { draw_viewer_window(); }
// Other windows
if (callback_draw_custom_window) { callback_draw_custom_window(); }
else { draw_custom_window(); }
}
IGL_INLINE void ImGuiMenu::draw_viewer_window()
{
ImGui::SetNextWindowPos(ImVec2(0.0f, 0.0f), ImGuiCond_FirstUseEver);
ImGui::SetNextWindowSize(ImVec2(0.0f, 0.0f), ImGuiCond_FirstUseEver);
bool _viewer_menu_visible = true;
ImGui::Begin(
"Viewer", &_viewer_menu_visible,
ImGuiWindowFlags_NoSavedSettings
| ImGuiWindowFlags_AlwaysAutoResize
);
ImGui::PushItemWidth(ImGui::GetWindowWidth() * 0.4f);
if (callback_draw_viewer_menu) { callback_draw_viewer_menu(); }
else { draw_viewer_menu(); }
ImGui::PopItemWidth();
ImGui::End();
}
IGL_INLINE void ImGuiMenu::draw_viewer_menu()
{
// Workspace
if (ImGui::CollapsingHeader("Workspace", ImGuiTreeNodeFlags_DefaultOpen))
{
float w = ImGui::GetContentRegionAvail().x;
float p = ImGui::GetStyle().FramePadding.x;
if (ImGui::Button("Load##Workspace", ImVec2((w-p)/2.f, 0)))
{
viewer->load_scene();
}
ImGui::SameLine(0, p);
if (ImGui::Button("Save##Workspace", ImVec2((w-p)/2.f, 0)))
{
viewer->save_scene();
}
}
// Mesh
if (ImGui::CollapsingHeader("Mesh", ImGuiTreeNodeFlags_DefaultOpen))
{
float w = ImGui::GetContentRegionAvail().x;
float p = ImGui::GetStyle().FramePadding.x;
if (ImGui::Button("Load##Mesh", ImVec2((w-p)/2.f, 0)))
{
viewer->open_dialog_load_mesh();
}
ImGui::SameLine(0, p);
if (ImGui::Button("Save##Mesh", ImVec2((w-p)/2.f, 0)))
{
viewer->open_dialog_save_mesh();
}
}
// Viewing options
if (ImGui::CollapsingHeader("Viewing Options", ImGuiTreeNodeFlags_DefaultOpen))
{
if (ImGui::Button("Center object", ImVec2(-1, 0)))
{
viewer->core().align_camera_center(viewer->data().V, viewer->data().F);
}
if (ImGui::Button("Snap canonical view", ImVec2(-1, 0)))
{
viewer->snap_to_canonical_quaternion();
}
// Zoom
ImGui::PushItemWidth(80 * menu_scaling());
ImGui::DragFloat("Zoom", &(viewer->core().camera_zoom), 0.05f, 0.1f, 20.0f);
// Select rotation type
int rotation_type = static_cast<int>(viewer->core().rotation_type);
static Eigen::Quaternionf trackball_angle = Eigen::Quaternionf::Identity();
static bool orthographic = true;
if (ImGui::Combo("Camera Type", &rotation_type, "Trackball\0Two Axes\0002D Mode\0\0"))
{
using RT = igl::opengl::ViewerCore::RotationType;
auto new_type = static_cast<RT>(rotation_type);
if (new_type != viewer->core().rotation_type)
{
if (new_type == RT::ROTATION_TYPE_NO_ROTATION)
{
trackball_angle = viewer->core().trackball_angle;
orthographic = viewer->core().orthographic;
viewer->core().trackball_angle = Eigen::Quaternionf::Identity();
viewer->core().orthographic = true;
}
else if (viewer->core().rotation_type == RT::ROTATION_TYPE_NO_ROTATION)
{
viewer->core().trackball_angle = trackball_angle;
viewer->core().orthographic = orthographic;
}
viewer->core().set_rotation_type(new_type);
}
}
// Orthographic view
ImGui::Checkbox("Orthographic view", &(viewer->core().orthographic));
ImGui::PopItemWidth();
}
// Helper for setting viewport specific mesh options
auto make_checkbox = [&](const char *label, unsigned int &option)
{
return ImGui::Checkbox(label,
[&]() { return viewer->core().is_set(option); },
[&](bool value) { return viewer->core().set(option, value); }
);
};
// Draw options
if (ImGui::CollapsingHeader("Draw Options", ImGuiTreeNodeFlags_DefaultOpen))
{
if (ImGui::Checkbox("Face-based", &(viewer->data().face_based)))
{
viewer->data().dirty = MeshGL::DIRTY_ALL;
}
make_checkbox("Show texture", viewer->data().show_texture);
if (ImGui::Checkbox("Invert normals", &(viewer->data().invert_normals)))
{
viewer->data().dirty |= igl::opengl::MeshGL::DIRTY_NORMAL;
}
make_checkbox("Show overlay", viewer->data().show_overlay);
make_checkbox("Show overlay depth", viewer->data().show_overlay_depth);
ImGui::ColorEdit4("Background", viewer->core().background_color.data(),
ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_PickerHueWheel);
ImGui::ColorEdit4("Line color", viewer->data().line_color.data(),
ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_PickerHueWheel);
ImGui::PushItemWidth(ImGui::GetWindowWidth() * 0.3f);
ImGui::DragFloat("Shininess", &(viewer->data().shininess), 0.05f, 0.0f, 100.0f);
ImGui::PopItemWidth();
}
// Overlays
if (ImGui::CollapsingHeader("Overlays", ImGuiTreeNodeFlags_DefaultOpen))
{
make_checkbox("Wireframe", viewer->data().show_lines);
make_checkbox("Fill", viewer->data().show_faces);
make_checkbox("Show vertex labels", viewer->data().show_vertex_labels);
make_checkbox("Show faces labels", viewer->data().show_face_labels);
make_checkbox("Show extra labels", viewer->data().show_custom_labels);
}
}
} // end namespace
} // end namespace
} // end namespace
} // end namespace