light/modules/mirror/private/panels/properties.cpp
light7734 9c071493c5
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refactor: imgui as conan module instead of git submodule
2025-07-20 05:20:43 +03:30

312 lines
8 KiB
C++

#include <asset_manager/asset_manager.hpp>
#include <camera/component.hpp>
#include <ecs/components.hpp>
#include <imgui.h>
#include <imgui_internal.h>
#include <math/trig.hpp>
#include <mirror/panels/properties.hpp>
namespace lt {
void PropertiesPanel::on_user_interface_update()
{
ImGui::Begin("Properties");
if (m_entity_context.is_valid())
{
if (m_entity_context.has_component<TagComponent>())
{
auto &tagComponent = m_entity_context.get_component<TagComponent>();
auto buffer = std::array<char, 256> {};
memset(buffer.data(), 0, buffer.size());
strncpy(buffer.data(), tagComponent.tag.c_str(), buffer.size());
if (ImGui::InputText("##Tag", buffer.data(), buffer.size()))
{
tagComponent.tag = buffer.data();
}
}
ImGui::SameLine();
ImGui::PushItemWidth(-1);
if (ImGui::Button("Add component"))
{
ImGui::OpenPopup("Components");
}
if (ImGui::BeginPopup("Components"))
{
if (ImGui::Selectable(
"SpriteRenderer",
false,
m_entity_context.has_component<SpriteRendererComponent>() ?
ImGuiSelectableFlags_Disabled :
ImGuiSelectableFlags {}
))
{
m_entity_context.add_component<SpriteRendererComponent>(
lt::AssetManager::get_texture("awesomeface")
);
}
if (ImGui::Selectable(
"Camera",
false,
m_entity_context.has_component<CameraComponent>() ?
ImGuiSelectableFlags_Disabled :
ImGuiSelectableFlags {}
))
{
m_entity_context.add_component<CameraComponent>();
}
ImGui::EndPopup();
}
ImGui::PopItemWidth();
draw_component<TransformComponent>(
"Transform Component",
m_entity_context,
[&](auto &transformComponent) {
draw_vec3_control("Translation", transformComponent.translation);
}
);
draw_component<SpriteRendererComponent>(
"SpriteRenderer Component",
m_entity_context,
[&](auto &spriteRendererComponent) {
ImGui::ColorEdit4("Color", &spriteRendererComponent.tint[0]);
}
);
draw_component<CameraComponent>(
"Camera Component",
m_entity_context,
[&](auto &cameraComponent) {
auto &camera = cameraComponent.camera;
auto projection_type = camera.get_projection_type();
auto projection_types_str = std::array<const char *, 2> {
"Orthographic",
"Perspective",
};
if (ImGui::BeginCombo("ProjectionType", projection_types_str[(int)projection_type]))
{
for (auto idx = 0; idx < 2; idx++)
{
const auto is_selected = static_cast<int>(projection_type) == idx;
if (ImGui::Selectable(projection_types_str[idx], is_selected))
{
projection_type = static_cast<SceneCamera::ProjectionType>(idx);
camera.set_projection_type(projection_type);
}
if (is_selected)
{
ImGui::SetItemDefaultFocus();
}
}
ImGui::EndCombo();
}
if (projection_type == SceneCamera::ProjectionType::Orthographic)
{
auto ortho_size = float {};
auto near_plane = float {};
auto far_plane = float {};
ortho_size = camera.get_orthographic_size();
near_plane = camera.get_orthographic_near_plane();
far_plane = camera.get_orthographic_far_plane();
if (ImGui::DragFloat("Orthographic Size", &ortho_size))
{
camera.set_orthographic_size(ortho_size);
}
if (ImGui::DragFloat("Near Plane", &near_plane))
{
camera.set_orthographic_near_plane(near_plane);
}
if (ImGui::DragFloat("Far Plane", &far_plane))
{
camera.set_orthographic_far_plane(far_plane);
}
}
else // perspective
{
auto vertical_fov = float {};
auto near_plane = float {};
auto far_plane = float {};
vertical_fov = math::degrees(camera.get_perspective_vertical_fov());
near_plane = camera.get_perspective_near_plane();
far_plane = camera.get_perspective_far_plane();
if (ImGui::DragFloat("Vertical FOV", &vertical_fov))
{
camera.set_perspective_vertical_fov(math::radians(vertical_fov));
}
if (ImGui::DragFloat("Near Plane", &near_plane))
{
camera.set_perspective_near_plane(near_plane);
}
if (ImGui::DragFloat("Far Plane", &far_plane))
{
camera.set_perspective_far_plane(far_plane);
}
}
ImGui::Separator();
}
);
}
ImGui::End();
}
void PropertiesPanel::set_entity_context(const Entity &entity)
{
m_entity_context = entity;
}
void PropertiesPanel::draw_vec3_control(
const std::string &label,
math::vec3 &values,
float reset_value,
float column_width
)
{
auto &io = ImGui::GetIO();
auto *bold_font = io.Fonts->Fonts[0];
ImGui::Columns(2);
ImGui::SetColumnWidth(0, column_width);
ImGui::TextUnformatted(label.c_str());
ImGui::NextColumn();
ImGui::PushMultiItemsWidths(3, ImGui::CalcItemWidth());
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2 { 0, 0 });
auto line_height = GImGui->Font->LegacySize + GImGui->Style.FramePadding.y * 2.0f;
auto button_size = ImVec2 { line_height + 3.0f, line_height };
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0.8f, 0.1f, 0.15f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0.9f, 0.2f, 0.2f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(0.8f, 0.1f, 0.15f, 1.0f));
ImGui::PushFont(bold_font);
if (ImGui::Button("X", button_size))
{
values.x = reset_value;
}
ImGui::PopFont();
ImGui::PopStyleColor(3);
ImGui::SameLine();
ImGui::DragFloat("##X", &values.x, 0.1f);
ImGui::PopItemWidth();
ImGui::SameLine();
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0.2f, 0.7f, 0.2f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0.3f, 0.8f, 0.3f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(0.2f, 0.7f, 0.2f, 1.0f));
ImGui::PushFont(bold_font);
if (ImGui::Button("Y", button_size))
{
values.y = reset_value;
}
ImGui::PopFont();
ImGui::PopStyleColor(3);
ImGui::SameLine();
ImGui::DragFloat("##Y", &values.y, 0.1f);
ImGui::PopItemWidth();
ImGui::SameLine();
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0.1f, 0.25f, 0.8f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImVec4(0.2f, 0.35f, 0.9f, 1.0f));
ImGui::PushStyleColor(ImGuiCol_ButtonActive, ImVec4(0.1f, 0.25f, 0.8f, 1.0f));
ImGui::PushFont(bold_font);
if (ImGui::Button("Z", button_size))
{
values.z = reset_value;
}
ImGui::PopFont();
ImGui::PopStyleColor(3);
ImGui::SameLine();
ImGui::DragFloat("##Z", &values.z, 0.1f);
ImGui::PopItemWidth();
ImGui::PopStyleVar();
ImGui::Columns(1);
}
template<typename ComponentType, typename UIFunction>
void PropertiesPanel::draw_component(
const std::string &name,
Entity entity,
UIFunction user_interface_function
)
{
if (!entity.has_component<ComponentType>())
{
return;
}
auto &component = entity.get_component<ComponentType>();
auto available_region = ImGui::GetContentRegionAvail();
// NOLINTNEXTLINE
auto flags = ImGuiTreeNodeFlags_DefaultOpen | ImGuiTreeNodeFlags_SpanAvailWidth
| ImGuiTreeNodeFlags_Framed | ImGuiTreeNodeFlags_AllowItemOverlap
| ImGuiTreeNodeFlags_FramePadding;
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, { 4, 4 });
auto lineHeight = GImGui->Font->LegacySize + GImGui->Style.FramePadding.y * 2.0f;
ImGui::Separator();
// NOLINTNEXTLINE
if (ImGui::TreeNodeEx((void *)typeid(ComponentType).hash_code(), flags, name.c_str()))
{
ImGui::PopStyleVar();
ImGui::SameLine(available_region.x - lineHeight * .5f);
if (ImGui::Button("+", { lineHeight, lineHeight }))
{
ImGui::OpenPopup("ComponentSettings");
}
if (ImGui::BeginPopup("ComponentSettings"))
{
if (ImGui::Selectable("Remove component"))
{
entity.remove_component<ComponentType>();
}
ImGui::EndPopup();
}
user_interface_function(component);
ImGui::TreePop();
}
else
{
ImGui::PopStyleVar();
}
}
} // namespace lt