Launcher display options (#1938)

* launcher: add minimize and maximize buttons to the main window

The main window is a QDialog, which on Windows only gets a close button.

* graphics: keep the game's aspect ratio when presenting to the window

The guest frame was blitted across the whole swapchain image, so a window
or fullscreen display whose shape differs from the frame stretched the
picture. Fit the frame inside the window instead and clear the remaining
bars to black. The video-out overlay layer is drawn into the same
rectangle so it stays aligned with the frame underneath.

* launcher: accept custom screen resolutions such as 21:9

The resolution was a fixed enum of four 16:9 sizes. Make the combo box
editable so any WIDTHxHEIGHT between 320 and 16384 can be entered, and
add ultrawide presets (2560x1080, 3440x1440, 3840x1600, 5120x2160).

Settings saved by older launchers stored the enum key ("R1920X1080");
NormalizeResolution still accepts that form, so they load unchanged.

* launcher: add a Stretch to window option

Presentation now keeps the game's aspect ratio with black bars. Add
--stretch to fill the whole window as before, exposed in the launcher as
a "Stretch to window" checkbox under General, off by default.

* launcher: make the settings dialog resizable and its tabs scrollable

The dialog had no maximize button and pinned its minimum width to its
initial 900 px, and without scroll areas it could not be made shorter
than its content. Add a maximize button (not minimize, since the dialog
is modal), drop the width pin, and wrap each tab page in a frameless
scroll area.

With the scroll areas the layout's minimum size no longer forces the
dialog open, so size it explicitly: grow it to fit the largest tab,
capped at the available screen, when there is no saved geometry and
whenever the global settings add the game folders panel.

* launcher: simplify display options and preserve saved settings

---------

Co-authored-by: nmzik <Nmzik@mail.ru>

src/launcher/include/configuration.h

@@ -21,10 +21,7 @@ inline QStringList EnumToList() {
 	auto        me    = QMetaEnum::fromType<T>();
 	int         count = me.keyCount();
 	for (int i = 0; i < count; i++) {
-		auto key = QString(me.key(i));
-		ret << (key.startsWith('R') && key.size() > 2 && key.at(1).isDigit()
-		            ? key.remove('R').toLower()
-		            : key);
+		ret << QString(me.key(i));
 	}
 	return ret;
 }
@@ -32,16 +29,12 @@ inline QStringList EnumToList() {
 template <class T>
 T TextToEnum(const QString& text) {
 	auto me = QMetaEnum::fromType<T>();
-	return static_cast<T>(me.keyToValue(
-	    ((text.size() > 1 && text.at(0).isDigit()) ? 'R' + text.toUpper() : text).toUtf8().data()));
+	return static_cast<T>(me.keyToValue(text.toUtf8().constData()));
 }
 
 template <class T>
 QString EnumToText(T value) {
-	auto me  = QMetaEnum::fromType<T>();
-	auto key = QString(me.valueToKey(static_cast<int>(value)));
-	return (key.startsWith('R') && key.size() > 2 && key.at(1).isDigit() ? key.remove('R').toLower()
-	                                                                     : key);
+	return QString(QMetaEnum::fromType<T>().valueToKey(static_cast<int>(value)));
 }
 
 struct ControllerSettings {
@@ -80,13 +73,10 @@ public:
 	static constexpr int DEFAULT_CONSOLE_LANGUAGE = 1;
 	static constexpr int MAX_CONSOLE_LANGUAGE     = 29;
 
-	enum class Resolution {
-		R1280X720,
-		R1920X1080,
-		R2560X1440,
-		R3840X2160,
-	};
-	Q_ENUM(Resolution)
+	static constexpr int MIN_SCREEN_SIZE = 320;
+	static constexpr int MAX_SCREEN_SIZE = 16384;
+
+	static QString NormalizeResolution(const QString& text);
 
 	enum class ShaderOptimizationType { None, Size, Performance };
 	Q_ENUM(ShaderOptimizationType)
@@ -117,7 +107,7 @@ public:
 	// Controller preferences always come from the global configuration.
 	ControllerSettings controller;
 
-	Resolution             screen_resolution           = Resolution::R1280X720;
+	QString                screen_resolution           = QStringLiteral("1280x720");
 	QString                user_name                   = "Kyty";
 	int                    user_id                     = Config::DEFAULT_USER_ID;
 	QString                audio_input_device;
@@ -126,6 +116,7 @@ public:
 	bool                   fullscreen_enabled          = false;
 	bool                   hdr_enabled                 = false;
 	bool                   hide_cursor_enabled         = false;
+	bool                   stretch_enabled             = false;
 	bool                   readback_linear_images      = false;
 	bool                   readback_tiled_images       = false;
 	bool                   sync_raw_image_buffers      = false;
@@ -168,6 +159,7 @@ public:
 		fullscreen_enabled          = other.fullscreen_enabled;
 		hdr_enabled                 = other.hdr_enabled;
 		hide_cursor_enabled         = other.hide_cursor_enabled;
+		stretch_enabled             = other.stretch_enabled;
 		readback_linear_images      = other.readback_linear_images;
 		readback_tiled_images       = other.readback_tiled_images;
 		sync_raw_image_buffers      = other.sync_raw_image_buffers;