gui/controllers dialog: Implement swap for controller ports.

vita3k/gui/src/controllers_dialog.cpp

@@ -173,6 +173,39 @@ static void add_bind_to_table(GuiState &gui, EmuEnvState &emuenv, const SDL_Game
     ImGui::PopID();
 }
 
+void swap_controller_ports(CtrlState &state, int source_port, int dest_port) {
+    // Check if the ports are valid
+    if (source_port < 1 || source_port > SCE_CTRL_MAX_WIRELESS_NUM || dest_port < 1 || dest_port > SCE_CTRL_MAX_WIRELESS_NUM) {
+        LOG_ERROR("Ports are not valid.");
+        return;
+    }
+
+    // Find the controllers corresponding to the source and destination ports
+    auto source_controller_it = std::find_if(state.controllers.begin(), state.controllers.end(),
+        [source_port](const auto &pair) { return pair.second.port == source_port; });
+    auto dest_controller_it = std::find_if(state.controllers.begin(), state.controllers.end(),
+        [dest_port](const auto &pair) { return pair.second.port == dest_port; });
+
+    // Check that both controllers exist
+    if (source_controller_it == state.controllers.end() || dest_controller_it == state.controllers.end()) {
+        LOG_ERROR("Unable to find one or more controllers on the specified ports.");
+        return;
+    }
+
+    LOG_INFO("Controller on source port {} {} swapped with controller on destination port {} {}", source_port, state.controllers_name[source_port - 1], dest_port, state.controllers_name[dest_port - 1]);
+
+    // Swap controllers info and player index
+    SDL_GameControllerSetPlayerIndex(source_controller_it->second.controller.get(), dest_port - 1);
+    std::swap(source_controller_it->second.port, dest_controller_it->second.port);
+    std::swap(source_controller_it->second.has_accel, dest_controller_it->second.has_accel);
+    std::swap(source_controller_it->second.has_gyro, dest_controller_it->second.has_gyro);
+    std::swap(source_controller_it->second.has_led, dest_controller_it->second.has_led);
+
+    // Swap controller names
+    std::swap(state.controllers_name[source_port - 1], state.controllers_name[dest_port - 1]);
+    std::swap(state.controllers_has_motion_support[source_port - 1], state.controllers_has_motion_support[dest_port - 1]);
+}
+
 void draw_controllers_dialog(GuiState &gui, EmuEnvState &emuenv) {
     const ImVec2 VIEWPORT_POS(emuenv.viewport_pos.x, emuenv.viewport_pos.y);
     const ImVec2 VIEWPORT_SIZE(emuenv.viewport_size.x, emuenv.viewport_size.y);
@@ -185,8 +218,6 @@ void draw_controllers_dialog(GuiState &gui, EmuEnvState &emuenv) {
 
     const auto has_controllers = ctrl.controllers_num > 0;
 
-    if (has_controllers)
-        ImGui::SetNextWindowSize(ImVec2(VIEWPORT_SIZE.x / 2.5f, 0), ImGuiCond_Always);
     ImGui::SetNextWindowPos(ImVec2(VIEWPORT_POS.x + (VIEWPORT_SIZE.x / 2.f), VIEWPORT_POS.y + (VIEWPORT_SIZE.y / 2.f)), ImGuiCond_Always, ImVec2(0.5f, 0.5f));
     ImGui::Begin("##controllers", &gui.controls_menu.controllers_dialog, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings);
     ImGui::SetWindowFontScale(RES_SCALE.x);
@@ -214,10 +245,24 @@ void draw_controllers_dialog(GuiState &gui, EmuEnvState &emuenv) {
             ImGui::Spacing();
             ImGui::TableSetColumnIndex(2);
             ImGui::TextColored(GUI_COLOR_TEXT_TITLE, "%s", "Motion Support");
+            std::vector<std::string> port_names;
+            for (int j = 0; j < ctrl.controllers_num; ++j) {
+                port_names.push_back(fmt::format("{}", j));
+            }
+            std::vector<const char *> port_name_ptrs;
+            for (const auto &name : port_names) {
+                port_name_ptrs.push_back(name.c_str());
+            }
+            static int selected_port = -1;
             for (auto i = 0; i < ctrl.controllers_num; i++) {
                 ImGui::TableNextRow();
                 ImGui::TableSetColumnIndex(0);
-                ImGui::Text("%-8d", i);
+                selected_port = i; 
+                ImGui::PushID(i);
+                ImGui::SetNextItemWidth(50.f * emuenv.dpi_scale);
+                if (ImGui::Combo("##swap_port", &selected_port, port_name_ptrs.data(), static_cast<int>(port_names.size())))
+                    swap_controller_ports(ctrl, i + 1, selected_port + 1);
+                ImGui::PopID();
                 ImGui::TableSetColumnIndex(1);
                 if (ImGui::Button(ctrl.controllers_name[i]))
                     rebinds_is_open = true;