[WIP] Qt: Add config window controls

CMakeLists.txt

@@ -280,6 +280,7 @@ set(SOURCE_FILES src/emulator.cpp src/io_file.cpp src/config.cpp
                  src/core/memory.cpp src/renderer.cpp src/core/renderer_null/renderer_null.cpp
                  src/http_server.cpp src/stb_image_write.c src/core/cheats.cpp src/core/action_replay.cpp
                  src/discord_rpc.cpp src/lua.cpp src/memory_mapped_file.cpp src/miniaudio.cpp src/renderdoc.cpp
+                 src/frontend_settings.cpp
 )
 set(CRYPTO_SOURCE_FILES src/core/crypto/aes_engine.cpp)
 set(KERNEL_SOURCE_FILES src/core/kernel/kernel.cpp src/core/kernel/resource_limits.cpp
@@ -361,7 +362,7 @@ set(HEADER_FILES include/emulator.hpp include/helpers.hpp include/termcolor.hpp
                  include/PICA/pica_vert_config.hpp include/sdl_sensors.hpp include/PICA/draw_acceleration.hpp include/renderdoc.hpp
                  include/align.hpp include/audio/aac_decoder.hpp include/PICA/pica_simd.hpp include/services/fonts.hpp
                  include/audio/audio_interpolation.hpp include/audio/hle_mixer.hpp include/audio/dsp_simd.hpp
-                 include/services/dsp_firmware_db.hpp
+                 include/services/dsp_firmware_db.hpp include/frontend_settings.hpp
 )
 
 cmrc_add_resource_library(
@@ -695,6 +696,9 @@ if(NOT BUILD_HYDRA_CORE AND NOT BUILD_LIBRETRO_CORE)
             PREFIX "/"
             FILES
                 docs/img/rsob_icon.png docs/img/rstarstruck_icon.png docs/img/rpog_icon.png docs/img/rsyn_icon.png
+                docs/img/settings_icon.png docs/img/display_icon.png docs/img/speaker_icon.png
+                docs/img/sparkling_icon.png docs/img/battery_icon.png docs/img/sdcard_icon.png
+                docs/img/rnap_icon.png docs/img/rcow_icon.png
         )
     else()
         set(FRONTEND_SOURCE_FILES src/panda_sdl/main.cpp src/panda_sdl/frontend_sdl.cpp src/panda_sdl/mappings.cpp)

include/config.hpp

@@ -3,6 +3,7 @@
 
 #include "audio/dsp_core.hpp"
 #include "renderer.hpp"
+#include "frontend_settings.hpp"
 
 struct AudioDeviceConfig {
 	float volumeRaw = 1.0f;
@@ -86,8 +87,9 @@ struct EmulatorConfig {
 
 	WindowSettings windowSettings;
 	AudioDeviceConfig audioDeviceConfig;
+	FrontendSettings frontendSettings;
 
 	EmulatorConfig(const std::filesystem::path& path);
 	void load();
 	void save();
-};
+};

include/discord_rpc.hpp

@@ -17,6 +17,8 @@ namespace Discord {
 		void init();
 		void update(RPCStatus status, const std::string& title);
 		void stop();
+
+		bool running() const { return enabled; }
 	};
 }  // namespace Discord
 

include/emulator.hpp

@@ -118,6 +118,9 @@ class Emulator {
 	void setOutputSize(u32 width, u32 height) { gpu.setOutputSize(width, height); }
 	void deinitGraphicsContext() { gpu.deinitGraphicsContext(); }
 
+	// Reloads some settings that require special handling, such as audio enable
+	void reloadSettings();
+
 	EmulatorConfig& getConfig() { return config; }
 	Cheats& getCheats() { return cheats; }
 	ServiceManager& getServiceManager() { return kernel.getServiceManager(); }

include/frontend_settings.hpp

@@ -0,0 +1,32 @@
+#pragma once
+#include <string>
+
+// Some UI settings that aren't fully frontend-dependent. Note: Not all frontends will support the same settings.
+// Note: Any enums should ideally be ordered in the same order we want to show them in UI dropdown menus, so that we can cast indices to enums
+// directly.
+struct FrontendSettings {
+	enum class Theme : int {
+		System = 0,
+		Light = 1,
+		Dark = 2,
+		GreetingsCat = 3,
+		Cream = 4,
+	};
+
+	// Different panda-themed window icons
+	enum class WindowIcon : int {
+		Rpog = 0,
+		Rsyn = 1,
+		Rnap = 2,
+		Rcow = 3,
+	};
+
+	Theme theme = Theme::Dark;
+	WindowIcon icon = WindowIcon::Rpog;
+
+	static Theme themeFromString(std::string inString);
+	static const char* themeToString(Theme theme);
+
+	static WindowIcon iconFromString(std::string inString);
+	static const char* iconToString(WindowIcon icon);
+};

include/panda_qt/config_window.hpp

@@ -1,30 +1,56 @@
 #pragma once
 
 #include <QApplication>
+#include <QCheckBox>
 #include <QComboBox>
 #include <QDialog>
+#include <QListWidget>
 #include <QPalette>
+#include <QStackedWidget>
+#include <QTextEdit>
 #include <QWidget>
 #include <QtWidgets>
+#include <array>
+#include <functional>
+#include <utility>
+
+#include "emulator.hpp"
+#include "frontend_settings.hpp"
 
 class ConfigWindow : public QDialog {
 	Q_OBJECT
 
   private:
-	enum class Theme : int {
-		System = 0,
-		Light = 1,
-		Dark = 2,
-		GreetingsCat = 3,
-		Cream = 4,
-	};
+	using ConfigCallback = std::function<void()>;
+	using IconCallback = std::function<void(const QString&)>;
+
+	using Theme = FrontendSettings::Theme;
+	using WindowIcon = FrontendSettings::WindowIcon;
+
+	QTextEdit* helpText = nullptr;
+	QListWidget* widgetList = nullptr;
+	QStackedWidget* widgetContainer = nullptr;
+
+	static constexpr size_t settingWidgetCount = 6;
+	std::array<QString, settingWidgetCount> helpTexts;
 
-	Theme currentTheme;
-	QComboBox* themeSelect = nullptr;
+	// The config class holds a copy of the emulator config which it edits and sends
+	// over to the emulator in a thread-safe manner
+	EmulatorConfig config;
 
-	void setTheme(Theme theme);
+	ConfigCallback updateConfig;
+	IconCallback updateIcon;
+
+	void addWidget(QWidget* widget, QString title, QString icon, QString helpText);
+	void setTheme(FrontendSettings::Theme theme);
+	void setIcon(FrontendSettings::WindowIcon icon);
 
   public:
-	ConfigWindow(QWidget* parent = nullptr);
+	ConfigWindow(ConfigCallback configCallback, IconCallback iconCallback, const EmulatorConfig& config, QWidget* parent = nullptr);
 	~ConfigWindow();
+
+	EmulatorConfig& getConfig() { return config; }
+
+  private:
+	Emulator* emu;
 };

include/panda_qt/main_window.hpp

@@ -51,6 +51,7 @@ class MainWindow : public QMainWindow {
 		ReleaseTouchscreen,
 		ReloadUbershader,
 		SetScreenSize,
+		UpdateConfig,
 	};
 
 	// Tagged union representing our message queue messages

include/renderdoc.hpp

@@ -23,6 +23,9 @@ namespace Renderdoc {
 	// Sets output directory for captures
 	void setOutputDir(const std::string& path, const std::string& prefix);
 
+	// Returns whether Renderdoc has been loaded
+	bool isLoaded();
+
 	// Returns whether we've compiled with Renderdoc support
 	static constexpr bool isSupported() { return true; }
 }  // namespace Renderdoc
@@ -34,6 +37,7 @@ namespace Renderdoc {
 	static void triggerCapture() { Helpers::panic("Tried to trigger a Renderdoc capture while support for renderdoc is disabled"); }
 	static void setOutputDir(const std::string& path, const std::string& prefix) {}
 	static constexpr bool isSupported() { return false; }
+	static constexpr bool isLoaded() { return false; }
 }  // namespace Renderdoc
 #endif
 

src/config.cpp

@@ -130,6 +130,16 @@ void EmulatorConfig::load() {
 			sdWriteProtected = toml::find_or<toml::boolean>(sd, "WriteProtectVirtualSD", false);
 		}
 	}
+
+	if (data.contains("UI")) {
+		auto uiResult = toml::expect<toml::value>(data.at("UI"));
+		if (uiResult.is_ok()) {
+			auto ui = uiResult.unwrap();
+
+			frontendSettings.theme = FrontendSettings::themeFromString(toml::find_or<std::string>(ui, "Theme", "dark"));
+			frontendSettings.icon = FrontendSettings::iconFromString(toml::find_or<std::string>(ui, "WindowIcon", "rpog"));
+		}
+	}
 }
 
 void EmulatorConfig::save() {
@@ -186,6 +196,9 @@ void EmulatorConfig::save() {
 	data["SD"]["UseVirtualSD"] = sdCardInserted;
 	data["SD"]["WriteProtectVirtualSD"] = sdWriteProtected;
 
+	data["UI"]["Theme"] = std::string(FrontendSettings::themeToString(frontendSettings.theme));
+	data["UI"]["WindowIcon"] = std::string(FrontendSettings::iconToString(frontendSettings.icon));
+
 	std::ofstream file(path, std::ios::out);
 	file << data;
 	file.close();

src/emulator.cpp

@@ -444,3 +444,24 @@ void Emulator::loadRenderdoc() {
 	Renderdoc::loadRenderdoc();
 	Renderdoc::setOutputDir(capturePath, "");
 }
+
+void Emulator::reloadSettings() {
+	setAudioEnabled(config.audioEnabled);
+
+	if (Renderdoc::isSupported() && config.enableRenderdoc && !Renderdoc::isLoaded()) {
+		loadRenderdoc();
+	}
+
+#ifdef PANDA3DS_ENABLE_DISCORD_RPC
+	// Reload RPC setting if we're compiling with RPC support
+
+	if (discordRpc.running() != config.discordRpcEnabled) {
+		if (config.discordRpcEnabled) {
+			discordRpc.init();
+			updateDiscord();
+		} else {
+			discordRpc.stop();
+		}
+	}
+#endif
+}

src/frontend_settings.cpp

@@ -0,0 +1,64 @@
+#include "frontend_settings.hpp"
+
+#include <algorithm>
+#include <cctype>
+#include <unordered_map>
+
+// Frontend setting serialization/deserialization functions
+
+FrontendSettings::Theme FrontendSettings::themeFromString(std::string inString) {
+	// Transform to lower-case to make the setting case-insensitive
+	std::transform(inString.begin(), inString.end(), inString.begin(), [](unsigned char c) { return std::tolower(c); });
+
+	static const std::unordered_map<std::string, Theme> map = {
+		{"system", Theme::System}, {"light", Theme::Light}, {"dark", Theme::Dark}, {"greetingscat", Theme::GreetingsCat}, {"cream", Theme::Cream},
+	};
+
+	if (auto search = map.find(inString); search != map.end()) {
+		return search->second;
+	}
+
+	// Default to dark theme
+	return Theme::Dark;
+}
+
+const char* FrontendSettings::themeToString(Theme theme) {
+	switch (theme) {
+		case Theme::System: return "system";
+		case Theme::Light: return "light";
+		case Theme::GreetingsCat: return "greetingscat";
+		case Theme::Cream: return "cream";
+
+		case Theme::Dark:
+		default: return "dark";
+	}
+}
+
+FrontendSettings::WindowIcon FrontendSettings::iconFromString(std::string inString) {  // Transform to lower-case to make the setting case-insensitive
+	std::transform(inString.begin(), inString.end(), inString.begin(), [](unsigned char c) { return std::tolower(c); });
+
+	static const std::unordered_map<std::string, WindowIcon> map = {
+		{"rpog", WindowIcon::Rpog},
+		{"rsyn", WindowIcon::Rsyn},
+		{"rcow", WindowIcon::Rcow},
+		{"rnap", WindowIcon::Rnap},
+	};
+
+	if (auto search = map.find(inString); search != map.end()) {
+		return search->second;
+	}
+
+	// Default to the icon rpog icon
+	return WindowIcon::Rpog;
+}
+
+const char* FrontendSettings::iconToString(WindowIcon icon) {
+	switch (icon) {
+		case WindowIcon::Rsyn: return "rsyn";
+		case WindowIcon::Rcow: return "rcow";
+		case WindowIcon::Rnap: return "rnap";
+
+		case WindowIcon::Rpog:
+		default: return "rpog";
+	}
+}