feat: add colormap selector to settings window

src/ConfigHandler.cpp

@@ -29,4 +29,9 @@ void ConfigHandler::write_config()
         std::cerr << "Failed to write config.ini!" << std::endl;
         ImGui::InsertNotification({ImGuiToastType::Error, 3000, "Failed to write config.ini!"});
     }
+}
+
+void ConfigHandler::apply_in_context_settings()
+{
+    ImPlot::GetStyle().Colormap = (ImPlotColormap)std::stoi(ini["color"]["colormap"]);
 }

src/ConfigHandler.hpp

@@ -3,6 +3,8 @@
 #include <string>
 #include <iostream>
 
+#include "implot.h"
+
 #include "sparq_config.h"
 
 #include "mini/ini.h"
@@ -21,6 +23,8 @@ class ConfigHandler
     void read_config();
     void write_config();
 
+    void apply_in_context_settings();
+
 private:
     ConfigHandler();
 };

src/SettingsWindow.cpp

@@ -8,6 +8,7 @@ void SettingsWindow::update_content()
 {
     show_graphics_settings();
     show_downsampling_settings();
+    show_color_settings();
 
     if (_settings_changed)
     {
@@ -111,4 +112,23 @@ void SettingsWindow::show_graphics_settings()
             _settings_changed = true;
         }
     }
+}
+
+void SettingsWindow::show_color_settings()
+{
+    if (ImGui::CollapsingHeader("Color"))
+    {
+
+        ImGui::Text("Color Map:");
+        ImGui::SameLine();
+
+        ImPlotColormap cm_prev = ImPlot::GetStyle().Colormap;
+        ImPlot::ShowColormapSelector("##Colormap");
+
+        if (cm_prev != ImPlot::GetStyle().Colormap)
+        {
+            _config_handler.ini["color"]["colormap"] = std::to_string(ImPlot::GetStyle().Colormap);
+            _settings_changed = true;
+        }
+    }
 }

src/SettingsWindow.hpp

@@ -14,6 +14,7 @@ class SettingsWindow : public Window
 
     void show_downsampling_settings();
     void show_graphics_settings();
+    void show_color_settings();
 
 private:
     bool _settings_changed = false;

src/config.ini

@@ -7,3 +7,6 @@ enabled = 1
 mode = 1
 max_samples = 100000
 max_samples_type = 0
+
+[color]
+colormap = 5

src/sparq.cpp

@@ -109,6 +109,8 @@ int SPARQ::window_init()
 
     _window = &window;
 
+    config.apply_in_context_settings();
+
     return 0;
 }