From d7c1ced08d5d78fcb239550404db4e67d4357a19 Mon Sep 17 00:00:00 2001
From: hachem <im@hachem.wtf>
Date: Tue, 22 Sep 2026 06:57:16 +0200
Subject: fix: windows support

---
 src/ui/ui_layer.cpp | 14 +++++++++++---
 src/ui/ui_layer.h   |  3 ++-
 2 files changed, 13 insertions(+), 4 deletions(-)

(limited to 'src/ui')

diff --git a/src/ui/ui_layer.cpp b/src/ui/ui_layer.cpp
index 90ddb7c..a65000e 100644
--- a/src/ui/ui_layer.cpp
+++ b/src/ui/ui_layer.cpp
@@ -140,7 +140,7 @@ namespace Donut
     // the theme: soft-rounded cards on a near-black ground, 1px borders for edges,
     // and the accent reserved for "this is live / selected" — slider grabs, checks,
     // the active tab's underline, the one primary button per panel.
-    static auto apply_donut_style() -> void
+    static auto apply_donut_style(float dpi_scale) -> void
     {
         ImGuiStyle& s = ImGui::GetStyle();
         s.WindowRounding = 8.0f;  s.ChildRounding = 6.0f;  s.FrameRounding = 6.0f;
@@ -216,6 +216,9 @@ namespace Donut
         c[ImGuiCol_TableRowBgAlt]             = ImVec4(1.0f, 1.0f, 1.0f, 0.025f);
         c[ImGuiCol_TextSelectedBg]            = amber_dim;
         c[ImGuiCol_DragDropTarget]            = kAmberHi;
+
+        // everything above is in 1x pixels; a 200% desktop wants it all doubled.
+        if (dpi_scale != 1.0f) { s.ScaleAllSizes(dpi_scale); s.FontScaleDpi = dpi_scale; }
     }
 
     // inspector row: label in a fixed left column, the control fills the rest.
@@ -262,8 +265,9 @@ namespace Donut
         }
     }
 
-    auto UILayer::init() -> void
+    auto UILayer::init(float dpi_scale) -> void
     {
+        m_dpi_scale = dpi_scale;
         ImGuiIO& io = ImGui::GetIO();
         m_font_body    = io.Fonts->AddFontFromFileTTF("assets/fonts/inter/static/Inter_18pt-Regular.ttf",  kBodySize);
         m_font_heading = io.Fonts->AddFontFromFileTTF("assets/fonts/inter/static/Inter_18pt-SemiBold.ttf", kHeadSize);
@@ -329,7 +333,7 @@ namespace Donut
     auto UILayer::draw(const UIContext& ctx) -> View
     {
         static bool styled = false;
-        if (!styled) { apply_donut_style(); styled = true; }
+        if (!styled) { apply_donut_style(m_dpi_scale); styled = true; }
 
         ImGuizmo::BeginFrame();   // the Properties panel draws the scene gizmo
 
@@ -991,7 +995,11 @@ namespace Donut
                 };
                 char buf[64];
                 row("Device",    ctx.device_name.empty() ? "GPU" : ctx.device_name.c_str());
+#ifdef __APPLE__
                 row("API",       RendererAPI::get_api() == RendererAPI::API::Vulkan ? "Vulkan (MoltenVK)" : "OpenGL 4.1");
+#else
+                row("API",       RendererAPI::get_api() == RendererAPI::API::Vulkan ? "Vulkan" : "OpenGL");
+#endif
                 row("Workspace", tab.label);
                 std::snprintf(buf, sizeof(buf), "%.0f x %.0f", io.DisplaySize.x * io.DisplayFramebufferScale.x,
                                                                 io.DisplaySize.y * io.DisplayFramebufferScale.y);
diff --git a/src/ui/ui_layer.h b/src/ui/ui_layer.h
index 4479844..bcfff23 100644
--- a/src/ui/ui_layer.h
+++ b/src/ui/ui_layer.h
@@ -30,7 +30,7 @@ namespace Donut
         // loads the Inter faces and registers the workspace ini section on the
         // live ImGui context. call once after the device's init_imgui() and before
         // the first draw(): ImGui reads imgui.ini on its first NewFrame.
-        auto init() -> void;
+        auto init(float dpi_scale = 1.0f) -> void;
         auto draw(const UIContext& ctx) -> View;
 
     private:
@@ -76,6 +76,7 @@ namespace Donut
         int      m_active_tab  = 0;      // index into m_tabs; the source of truth
         int      m_tab_request = -1;     // one-frame programmatic strip selection
         bool     m_first_frame = true;
+        float    m_dpi_scale   = 1.0f;   // monitor content scale (windows/linux); 1 on macos
 
         // properties-panel gizmo op (0 = translate, 1 = scale); cast in the .cpp.
         int   m_gizmo_op = 0;
-- 
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