Viendo organizacion para ejecucion de eventos desde el control panel u otros elementos de ui,

falta que el uimanager haga de intermediario entre los callbacks?

src/UI/ControlPanel.cpp

@@ -3,17 +3,29 @@
 #include <format>
 #include "imgui.h"
 
+
 ControlPanel::ControlPanel(
     std::shared_ptr<Graphics> graphics,
     std::shared_ptr<MachineState> machine_state
 ): graphics{std::move(graphics)},
    machine_state{std::move(machine_state)} {}
 
+void ControlPanel::set_rom_load_callback(const std::function<void(std::string)>& callback) {
+    this->rom_load_callback = callback;
+}
+
+void ControlPanel::set_reset_callback(const std::function<void()>& callback) {
+    this->reset_callback = callback;
+}
+
 void ControlPanel::render() {
     constexpr auto full_width = ImVec2(-FLT_MIN, 0.0f);
 
     if (ImGui::Begin("Chip-8 - Controls")) {
-        ImGui::Button("Load Rom", full_width);
+        if (ImGui::Button("Load Rom", full_width)) {
+            this->on_click_load_rom();
+        }
+
         if (ImGui::Button(run ? "Pause" : "Run", full_width)) {
             this->run = !run;
         }
@@ -37,10 +49,36 @@ void ControlPanel::render() {
 
         ImGui::SeparatorText("");
 
-        ImGui::Button("Reset", full_width);
+        if (ImGui::Button("Reset", full_width)) {
+            if (this->reset_callback) {
+                this->reset_callback();
+            }
+        }
         ImGui::Button("Reload ROM", full_width);
     }
 
-
     ImGui::End();
 }
+
+void ControlPanel::on_click_load_rom() {
+    constexpr SDL_DialogFileFilter filters[] = {
+        {"CHIP8 ROMs", "ch8"},
+        {"All files", "*"}
+    };
+
+    SDL_ShowOpenFileDialog(on_callback_load_rom, this, graphics->get_window().get(), filters, std::size(filters), nullptr, false);
+}
+
+void ControlPanel::on_callback_load_rom(void* userdata, const char* const* filelist, int filter) {
+    const auto control_panel = static_cast<ControlPanel*>(userdata);
+
+    if (!control_panel->rom_load_callback) {
+        return;
+    }
+
+    if (!filelist || !*filelist) {
+        return;
+    }
+
+    control_panel->rom_load_callback(*filelist);
+}