From 800e3d9f9583db4a53e022b13c28e7f91d63bdd8 Mon Sep 17 00:00:00 2001
From: Jonas Otto <jonas@jonasotto.com>
Date: Fri, 7 Jun 2024 22:36:35 +0200
Subject: [PATCH] try dpi fixes

---
 CMakeLists.txt          |  2 +-
 src/rig_reconfigure.cpp | 17 +++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c859534..0f72f79 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,7 @@ find_package(rclcpp REQUIRED)
 include(FetchContent)
 FetchContent_Declare(imgui
         GIT_REPOSITORY https://github.com/ocornut/imgui.git
-        GIT_TAG v1.89.8-docking
+        GIT_TAG v1.90.8-docking
         CONFIGURE_COMMAND ""
         BUILD_COMMAND ""
         )
diff --git a/src/rig_reconfigure.cpp b/src/rig_reconfigure.cpp
index 4d7af70..018266e 100644
--- a/src/rig_reconfigure.cpp
+++ b/src/rig_reconfigure.cpp
@@ -62,6 +62,18 @@ int main(int argc, char *argv[]) {
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
 
+    float highDPIscaleFactor = 1.0;
+    {
+        GLFWmonitor *monitor = glfwGetPrimaryMonitor();
+        float xscale, yscale;
+        glfwGetMonitorContentScale(monitor, &xscale, &yscale);
+        if (xscale > 1 || yscale > 1)
+        {
+            highDPIscaleFactor = xscale;
+            glfwWindowHint(GLFW_SCALE_TO_MONITOR, GLFW_TRUE);
+        }
+    }
+
     // Setup Dear ImGui context
     IMGUI_CHECKVERSION();
     ImGui::CreateContext();
@@ -109,6 +121,11 @@ int main(int argc, char *argv[]) {
 
     // Setup Dear ImGui style
     ImGui::StyleColorsDark();
+    ImGui::GetStyle().ScaleAllSizes(highDPIscaleFactor);
+    ImFontConfig config;
+    config.SizePixels = 13.0f * highDPIscaleFactor;
+    ImGui::GetIO().Fonts->AddFontDefault(&config);
+    //ImGui::GetIO().Fonts->AddFontFromFileTTF("ProggyClean.ttf", 13.0f * highDPIscaleFactor, NULL, NULL);
 
     // Setup Platform/Renderer backends
     ImGui_ImplGlfw_InitForOpenGL(window, true);