mGUI: Add arrow keys to symbol and add unicode codepoints

include/mgba-util/gui/font.h

@@ -55,6 +55,10 @@ enum GUIIcon {
 	GUI_ICON_BUTTON_HOME,
 	GUI_ICON_STATUS_FAST_FORWARD,
 	GUI_ICON_STATUS_MUTE,
+	GUI_ICON_LEFT,
+	GUI_ICON_UP,
+	GUI_ICON_RIGHT,
+	GUI_ICON_DOWN,
 	GUI_ICON_MAX,
 };
 

src/util/gui/font-metrics.c

@@ -152,6 +152,10 @@ const struct GUIIconMetric defaultIconMetrics[] = {
 	[GUI_ICON_BUTTON_TRIANGLE] = { 34, 34, 12, 11 },
 	[GUI_ICON_BUTTON_SQUARE] = { 50, 34, 12, 11 },
 	[GUI_ICON_BUTTON_HOME] = { 66, 34, 12, 11 },
+	[GUI_ICON_LEFT] = { 82, 34, 12, 12 },
+	[GUI_ICON_UP] = { 98, 34, 12, 12 },
+	[GUI_ICON_RIGHT] = { 114, 34, 12, 12 },
+	[GUI_ICON_DOWN] = { 130, 34, 12, 12 },
 	[GUI_ICON_STATUS_FAST_FORWARD] = { 2, 50, 12, 12 },
 	[GUI_ICON_STATUS_MUTE] = { 17, 50, 14, 12 },
 };

src/util/gui/font.c

@@ -40,17 +40,40 @@ void GUIFontPrint(struct GUIFont* font, int x, int y, enum GUIAlignment align, u
 	size_t len = strlen(text);
 	while (len) {
 		uint32_t c = utf8Char(&text, &len);
-		if (c == '\1') {
+		bool icon = false;
+		switch (c) {
+		case 1:
 			c = utf8Char(&text, &len);
 			if (c < GUI_ICON_MAX) {
-				GUIFontDrawIcon(font, x, y, (align & GUI_ALIGN_HCENTER) | GUI_ALIGN_BOTTOM, GUI_ORIENT_0, color, c);
-				unsigned w;
-				GUIFontIconMetrics(font, c, &w, 0);
-				x += w;
+				icon = true;
 			}
-		} else {
+			break;
+		case 0x2190:
+		case 0x2191:
+		case 0x2192:
+		case 0x2193:
+			c = GUI_ICON_LEFT + c - 0x2190;
+			icon = true;
+			break;
+		case 0x23E9:
+			c = GUI_ICON_STATUS_FAST_FORWARD;
+			icon = true;
+			break;
+		case 0x1F507:
+			c = GUI_ICON_STATUS_MUTE;
+			icon = true;
+			break;
+		default:
 			GUIFontDrawGlyph(font, x, y, color, c);
 			x += GUIFontGlyphWidth(font, c);
+			break;
+		}
+
+		if (icon) {
+			GUIFontDrawIcon(font, x, y, GUI_ALIGN_BOTTOM, GUI_ORIENT_0, color, c);
+			unsigned w;
+			GUIFontIconMetrics(font, c, &w, 0);
+			x += w;
 		}
 	}
 }