Fix ofTrueTypeFont: wrong width calc (only when string contains \n) (#7868)

Author: hiroMTB

libs/openFrameworks/graphics/ofTrueTypeFont.cpp

@@ -1160,13 +1160,18 @@ void ofTrueTypeFont::drawCharAsShape(uint32_t c, float x, float y, bool vFlipped
 //-----------------------------------------------------------
 float ofTrueTypeFont::stringWidth(const string& c) const{
 //	return getStringBoundingBox(c, 0,0).width;
-	int w = 0;
+	float w = 0;
 	iterateString( c, 0, 0, false, [&]( uint32_t c, glm::vec2 pos ){
-		if ( c == '\t' ){
-			w += getGlyphProperties(' ').advance * spaceSize * TAB_WIDTH;
-		} else {
-			w += getGlyphProperties( c ).advance;
+		float cWidth = 0;
+
+		if(settings.direction == OF_TTF_LEFT_TO_RIGHT){
+			if ( c == '\t' ){
+				cWidth = getGlyphProperties(' ').advance * spaceSize * TAB_WIDTH;
+			} else {
+				cWidth = getGlyphProperties( c ).advance;
+			}
 		}
+		w = std::max(w, std::abs(pos.x + cWidth));
 	});
 	return w;
 }
@@ -1192,12 +1197,19 @@ ofRectangle ofTrueTypeFont::getStringBoundingBox(const string& c, float x, float
 	float w = 0;
 	iterateString( c, x, y, vflip, [&]( uint32_t c, glm::vec2 pos ){
 		auto props = getGlyphProperties( c );
-		if ( c == '\t' ){
-			w += props.advance * spaceSize * TAB_WIDTH;
-		} else {
-			w += props.advance;
+
+		float cWidth = 0;
+
+		if(settings.direction == OF_TTF_LEFT_TO_RIGHT){
+			if ( c == '\t' ){
+				cWidth = getGlyphProperties(' ').advance * spaceSize * TAB_WIDTH;
+			} else {
+				cWidth = getGlyphProperties( c ).advance;
+			}
 		}
 
+		w = std::max(w, std::abs(pos.x - x) + cWidth);
+
 		minX = min( minX, pos.x );
 		if ( vflip ){
 			minY = min( minY, pos.y - ( props.ymax - props.ymin ) );