Merge branch 'imgui'

1 files changed, 27 insertions, 0 deletions

diff --git a/ui/mainWindow.cpp b/ui/mainWindow.cpp
new file mode 100644
index 0000000..38d6a6e
--- /dev/null
+++ b/ui/mainWindow.cpp
@@ -0,0 +1,27 @@
+#include "mainWindow.h"
+#include <format>
+#include <stdexcept>
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wold-style-cast"
+#include "backends/imgui_impl_opengl3.h"
+#include "backends/imgui_impl_sdl2.h"
+#pragma GCC diagnostic pop
+
+MainWindow::MainWindow(size_t w, size_t h) : MainWindow {w, h, "I Like Trains", SDL_WINDOW_OPENGL} { }
+
+MainWindow::MainWindow(size_t w, size_t h, const std::string & title, Uint32 flags) : Window {w, h, title, flags}
+{
+	if (const auto version = gladLoadGL(reinterpret_cast<GLADloadfunc>(SDL_GL_GetProcAddress)); version < 30003) {
+		throw std::runtime_error {std::format("Insufficient OpenGL version: {}", version)};
+	}
+
+	ImGui_ImplSDL2_InitForOpenGL(m_window, glContext.get());
+	ImGui_ImplOpenGL3_Init();
+}
+
+MainWindow::~MainWindow()
+{
+	ImGui_ImplOpenGL3_Shutdown();
+	ImGui_ImplSDL2_Shutdown();
+}