implement settings

2 files changed, 140 insertions, 12 deletions

diff --git a/lib/nes/app/ui/screen-settings.cc b/lib/nes/app/ui/screen-settings.cc
index 4d32662..98070d7 100644
--- a/lib/nes/app/ui/screen-settings.cc
+++ b/lib/nes/app/ui/screen-settings.cc
@@ -1,5 +1,98 @@
-//
-// Created by Hannes Schulze on 06.02.25.
-//
+#include "nes/app/ui/screen-settings.hh"
+#include "nes/app/input/input-manager.hh"
+#include "nes/app/preferences.hh"
 
-#include "screen-settings.hh"
+namespace nes::app
+{
+	auto screen_settings::selection_impl::render_item(
+		renderer& renderer, item const& item, i32 const x, i32 const y, u32 const width, color const c) const -> void
+	{
+		auto const render = [&](std::string_view const label, std::string_view const value)
+		{
+			auto const label_length = renderer.render_text(x, y, label, c);
+			auto const value_attrs = text_attributes{}
+				.set_alignment(text_alignment::right)
+				.set_ellipsize_mode(ellipsize_mode::end)
+				.set_max_width(width - label_length - 2);
+			renderer.render_text(x + static_cast<i32>(width), y, value, color::foreground_secondary, value_attrs);
+		};
+		switch (item)
+		{
+			case item::controller_1:
+				render("Controller 1:", input_manager_.get_input_1().get_name());
+				break;
+			case item::controller_2:
+				render("Controller 2:", input_manager_.get_input_2().get_name());
+				break;
+			case item::fps_counter:
+				render("FPS Counter:", preferences_.get_fps_counter() ? "Yes" : "No");
+				break;
+		}
+	}
+
+	auto screen_settings::selection_impl::load_page(item (&items)[page_size], u32) -> u32
+	{
+		items[0] = item::controller_1;
+		items[1] = item::controller_2;
+		items[2] = item::fps_counter;
+		return 3;
+	}
+
+	screen_settings::screen_settings(input_manager& input_manager, preferences& preferences)
+		: input_manager_{ input_manager }
+		, preferences_{ preferences }
+		, selection_{ input_manager, preferences }
+	{
+		selection_.set_page_count(1);
+	}
+
+	auto screen_settings::render(renderer& renderer) -> void
+	{
+		renderer.render_fill(color::background_primary);
+		renderer.render_rect(0, 0, 32, 3, color::background_secondary);
+
+		auto const page_length = renderer.render_text_format(
+			30, 1, color::foreground_secondary, text_attributes{}.set_alignment(text_alignment::right),
+			"Page {}/{}", selection_.get_current_page() + 1, selection_.get_page_count());
+
+		renderer.render_text(
+			2, 1, "Settings", color::foreground_primary,
+			text_attributes{}.set_max_width(26 - page_length).set_ellipsize_mode(ellipsize_mode::middle));
+
+		selection_.render(renderer);
+	}
+
+	auto screen_settings::process_events() -> action
+	{
+		while (auto const event = input_manager_.get_keyboard().poll_event())
+		{
+			if (event == input_event::key_down(key::space))
+			{
+				selection_.go_next();
+			}
+			else if (event == input_event::key_down(key::arrow_up))
+			{
+				selection_.go_up();
+			}
+			else if (event == input_event::key_down(key::arrow_down))
+			{
+				selection_.go_down();
+			}
+			else if (event == input_event::key_down(key::backspace))
+			{
+				return action::go_to_title();
+			}
+			else if (event == input_event::key_down(key::enter))
+			{
+				switch (*selection_.get_selected())
+				{
+					case item::controller_1: input_manager_.toggle_input_1(); break;
+					case item::controller_2: input_manager_.toggle_input_2(); break;
+					case item::fps_counter: preferences_.set_fps_counter(!preferences_.get_fps_counter()); break;
+				}
+			}
+		}
+
+		return action{};
+	}
+} // namespace nes::app
\ No newline at end of file
diff --git a/lib/nes/app/ui/screen-settings.hh b/lib/nes/app/ui/screen-settings.hh
index 8f510ca..8910c5c 100644
--- a/lib/nes/app/ui/screen-settings.hh
+++ b/lib/nes/app/ui/screen-settings.hh
@@ -1,16 +1,51 @@
-//
-// Created by Hannes Schulze on 06.02.25.
-//
+#pragma once
 
-#ifndef SCREEN_SETTINGS_HH
-#define SCREEN_SETTINGS_HH
+#include "nes/app/ui/screen.hh"
+#include "nes/app/ui/selection.hh"
 
+namespace nes::app
+{
+	class input_manager;
+	class preferences;
 
+	/// Screen used to configure various emulator options.
+	class screen_settings final : public screen
+	{
+		static constexpr auto page_size = u32{ 8 };
 
-class screen_settings {
+		enum class item
+		{
+			controller_1,
+			controller_2,
+			fps_counter,
+		};
 
-};
+		class selection_impl final : public selection<item, page_size>
+		{
+			input_manager& input_manager_;
+			preferences& preferences_;
 
+		public:
+			explicit selection_impl(input_manager& input_manager, preferences& preferences)
+				: selection{ 2, 5, 28 }
+				, input_manager_{ input_manager }
+				, preferences_{ preferences }
+			{
+			}
 
+		protected:
+			auto render_item(renderer&, item const&, i32 x, i32 y, u32 width, color) const -> void override;
+			auto load_page(item(&)[page_size], u32 page) -> u32 override;
+		};
 
-#endif //SCREEN_SETTINGS_HH
+		input_manager& input_manager_;
+		preferences& preferences_;
+		selection_impl selection_;
+
+	public:
+		explicit screen_settings(input_manager&, preferences&);
+
+		auto render(renderer&) -> void override;
+		auto process_events() -> action override;
+	};
+} // namespace nes::app
\ No newline at end of file