feat: update ui

1 files changed, 23 insertions, 5 deletions

diff --git a/src/core/application.cpp b/src/core/application.cpp
index 433f0e7..e53e420 100644
--- a/src/core/application.cpp
+++ b/src/core/application.cpp
@@ -12,6 +12,7 @@
 #include <algorithm>
 #include <thread>
 #include <chrono>
+#include <cstdlib>   // std::getenv (the DONUT_AUTOEXPORT dev hook)
 
 namespace Donut
 {
@@ -79,11 +80,9 @@ namespace Donut
         m_ui = create_scope<UILayer>();
 
         m_device->init_imgui();
-        // load the UI font into the device-created ImGui context (backend-agnostic;
-        // the backend rebuilds the atlas on the next frame).
-        ImGuiIO& io = ImGui::GetIO();
-        if (!io.Fonts->AddFontFromFileTTF("assets/fonts/inter/static/Inter_18pt-Regular.ttf", 16.0f))
-            io.Fonts->AddFontDefault();
+        // the UI layer owns its typography and its imgui.ini section; both go into
+        // the device-created ImGui context before its first NewFrame reads the ini.
+        m_ui->init();
 
         g_prev_scroll = glfwSetScrollCallback((GLFWwindow*)m_window->get_native_window(), donut_scroll_callback);
 
@@ -166,6 +165,25 @@ namespace Donut
         m_scene->scene_camera.set_projection(45.0f, (float)w / (float)std::max(h, 1), 0.1f, 1000.0f);
 
         View view = m_ui->draw(UIContext{ *m_scene, m_device->device_name(), *this });
+
+        // dev hook: DONUT_AUTOEXPORT=<frame> fires one export from this exact
+        // mid-frame spot (the Export button runs inside ui->draw, i.e. between
+        // begin_frame and render) at that frame (30 if it's not a number), then
+        // quits. lets the mid-frame export path be exercised headlessly — exit 0
+        // means no segfault.
+        if (const char* autoexport = std::getenv("DONUT_AUTOEXPORT"))
+        {
+            static int frame = 0;
+            const int at = std::atoi(autoexport) > 0 ? std::atoi(autoexport) : 30;
+            if (++frame == at)
+            {
+                ExportConfig cfg;
+                cfg.width = 1280; cfg.height = 720;
+                int written = export_frame(cfg);
+                DONUT_INFO("autoexport wrote {} file(s)", written);
+                close();
+            }
+        }
         update_input(view);
         m_render_path->sync_hdri(m_scene->hdri_path);