Window.cpp

#include "Window.h"

double Window::doubleVariable = 0.1f;
igl::opengl::glfw::Viewer Window::viewer;
igl::opengl::glfw::imgui::ImGuiMenu Window::menu;

void Window::init()
{
	viewer.plugins.push_back(&menu);
	// Add content to the default menu window
	menu.callback_draw_viewer_menu = [&]()
	{
		// Draw parent menu content
		menu.draw_viewer_menu();

		// Add new group
		if (ImGui::CollapsingHeader("New Group", ImGuiTreeNodeFlags_DefaultOpen))
		{
			// Expose variable directly ...
			ImGui::InputDouble("double", &doubleVariable, 0, 0, "%.4f");

			// ... or using a custom callback
			static bool boolVariable = true;
			if (ImGui::Checkbox("bool", &boolVariable))
			{
				// do something
				std::cout << "boolVariable: " << std::boolalpha << boolVariable << std::endl;
			}

			// Expose an enumeration type
			enum Orientation { Up = 0, Down, Left, Right };
			static Orientation dir = Up;
			ImGui::Combo("Direction", (int *)(&dir), "Up\0Down\0Left\0Right\0\0");

			// We can also use a std::vector<std::string> defined dynamically
			static int num_choices = 3;
			static std::vector<std::string> choices;
			static int idx_choice = 0;
			if (ImGui::InputInt("Num letters", &num_choices))
			{
				num_choices = std::max(1, std::min(26, num_choices));
			}
			if (num_choices != (int)choices.size())
			{
				choices.resize(num_choices);
				for (int i = 0; i < num_choices; ++i)
					choices[i] = std::string(1, 'A' + i);
				if (idx_choice >= num_choices)
					idx_choice = num_choices - 1;
			}
			ImGui::Combo("Letter", &idx_choice, choices);

			// Add a button
			if (ImGui::Button("Print Hello", ImVec2(-1, 0)))
			{
				std::cout << "Hello\n";
			}
		}
	};

	// Draw additional windows
	menu.callback_draw_custom_window = [&]() {
		// Define next window position + size
		ImGui::SetNextWindowPos(ImVec2(180.f * menu.menu_scaling(), 10), ImGuiSetCond_FirstUseEver);
		ImGui::SetNextWindowSize(ImVec2(200, 160), ImGuiSetCond_FirstUseEver);
		ImGui::Begin(
			"New Window", nullptr,
			ImGuiWindowFlags_NoSavedSettings
		);


		// Expose the same variable directly ...
		ImGui::PushItemWidth(-80);
		ImGui::DragScalar("double", ImGuiDataType_Double, &doubleVariable, 0.1, 0, 0, "%.4f");
		ImGui::PopItemWidth();

		static std::string str = "bunny";
		ImGui::InputText("Name", str);

		ImGui::End();
	};
}

void Window::draw()
{

}

void Window::launch()
{
	init();
	draw();
	viewer.launch();
}

Window::~Window()
{
	viewer.data().clear();
}