4 files changed, 55 insertions, 2 deletions

diff --git a/modules/text_server_adv/dynamic_font_adv.cpp b/modules/text_server_adv/dynamic_font_adv.cpp
index 5a16158c0f..fd47f58480 100644
--- a/modules/text_server_adv/dynamic_font_adv.cpp
+++ b/modules/text_server_adv/dynamic_font_adv.cpp
@@ -124,8 +124,8 @@ DynamicFontDataAdvanced::DataAtSize *DynamicFontDataAdvanced::get_data_for_size(
 		fds->size = p_size;
 		fds->ascent = (fds->face->size->metrics.ascender / 64.0) / oversampling * fds->scale_color_font;
 		fds->descent = (-fds->face->size->metrics.descender / 64.0) / oversampling * fds->scale_color_font;
-		fds->underline_position = -fds->face->underline_position / 64.0 / oversampling * fds->scale_color_font;
-		fds->underline_thickness = fds->face->underline_thickness / 64.0 / oversampling * fds->scale_color_font;
+		fds->underline_position = (-FT_MulFix(fds->face->underline_position, fds->face->size->metrics.y_scale) / 64.0) / oversampling * fds->scale_color_font;
+		fds->underline_thickness = (FT_MulFix(fds->face->underline_thickness, fds->face->size->metrics.y_scale) / 64.0) / oversampling * fds->scale_color_font;
 
 		//Load os2 TTF pable
 		fds->os2 = (TT_OS2 *)FT_Get_Sfnt_Table(fds->face, FT_SFNT_OS2);
diff --git a/modules/text_server_adv/font_adv.h b/modules/text_server_adv/font_adv.h
index 4bbd2dd4bf..2bb09c11ad 100644
--- a/modules/text_server_adv/font_adv.h
+++ b/modules/text_server_adv/font_adv.h
@@ -39,6 +39,8 @@ struct FontDataAdvanced {
 	Map<String, bool> lang_support_overrides;
 	Map<String, bool> script_support_overrides;
 	bool valid = false;
+	int spacing_space = 0;
+	int spacing_glyph = 0;
 
 	virtual void clear_cache() = 0;
 
@@ -58,6 +60,18 @@ struct FontDataAdvanced {
 	virtual float get_underline_position(int p_size) const = 0;
 	virtual float get_underline_thickness(int p_size) const = 0;
 
+	virtual int get_spacing_space() const { return spacing_space; };
+	virtual void set_spacing_space(int p_value) {
+		spacing_space = p_value;
+		clear_cache();
+	};
+
+	virtual int get_spacing_glyph() const { return spacing_glyph; };
+	virtual void set_spacing_glyph(int p_value) {
+		spacing_glyph = p_value;
+		clear_cache();
+	};
+
 	virtual void set_antialiased(bool p_antialiased) = 0;
 	virtual bool get_antialiased() const = 0;
 
diff --git a/modules/text_server_adv/text_server_adv.cpp b/modules/text_server_adv/text_server_adv.cpp
index 8e4771685d..1e015db210 100644
--- a/modules/text_server_adv/text_server_adv.cpp
+++ b/modules/text_server_adv/text_server_adv.cpp
@@ -601,6 +601,34 @@ float TextServerAdvanced::font_get_underline_thickness(RID p_font, int p_size) c
 	return fd->get_underline_thickness(p_size);
 }
 
+int TextServerAdvanced::font_get_spacing_space(RID p_font) const {
+	_THREAD_SAFE_METHOD_
+	const FontDataAdvanced *fd = font_owner.getornull(p_font);
+	ERR_FAIL_COND_V(!fd, 0);
+	return fd->get_spacing_space();
+}
+
+void TextServerAdvanced::font_set_spacing_space(RID p_font, int p_value) {
+	_THREAD_SAFE_METHOD_
+	FontDataAdvanced *fd = font_owner.getornull(p_font);
+	ERR_FAIL_COND(!fd);
+	fd->set_spacing_space(p_value);
+}
+
+int TextServerAdvanced::font_get_spacing_glyph(RID p_font) const {
+	_THREAD_SAFE_METHOD_
+	const FontDataAdvanced *fd = font_owner.getornull(p_font);
+	ERR_FAIL_COND_V(!fd, 0);
+	return fd->get_spacing_glyph();
+}
+
+void TextServerAdvanced::font_set_spacing_glyph(RID p_font, int p_value) {
+	_THREAD_SAFE_METHOD_
+	FontDataAdvanced *fd = font_owner.getornull(p_font);
+	ERR_FAIL_COND(!fd);
+	fd->set_spacing_glyph(p_value);
+}
+
 void TextServerAdvanced::font_set_antialiased(RID p_font, bool p_antialiased) {
 	_THREAD_SAFE_METHOD_
 	FontDataAdvanced *fd = font_owner.getornull(p_font);
@@ -2049,6 +2077,11 @@ void TextServerAdvanced::_shape_run(ShapedTextDataAdvanced *p_sd, int32_t p_star
 				gl.x_off = Math::round(glyph_pos[i].x_offset / (64.0 / fd->get_font_scale(fs)));
 				gl.y_off = -Math::round(glyph_pos[i].y_offset / (64.0 / fd->get_font_scale(fs)));
 			}
+			if (fd->get_spacing_space() && is_whitespace(p_sd->text[glyph_info[i].cluster])) {
+				gl.advance += fd->get_spacing_space();
+			} else {
+				gl.advance += fd->get_spacing_glyph();
+			}
 
 			if (p_sd->preserve_control) {
 				last_cluster_valid = last_cluster_valid && ((glyph_info[i].codepoint != 0) || is_whitespace(p_sd->text[glyph_info[i].cluster]) || is_linebreak(p_sd->text[glyph_info[i].cluster]));
diff --git a/modules/text_server_adv/text_server_adv.h b/modules/text_server_adv/text_server_adv.h
index 89fae477f9..c5ebe61bc3 100644
--- a/modules/text_server_adv/text_server_adv.h
+++ b/modules/text_server_adv/text_server_adv.h
@@ -134,6 +134,12 @@ public:
 	virtual float font_get_underline_position(RID p_font, int p_size) const override;
 	virtual float font_get_underline_thickness(RID p_font, int p_size) const override;
 
+	virtual int font_get_spacing_space(RID p_font) const override;
+	virtual void font_set_spacing_space(RID p_font, int p_value) override;
+
+	virtual int font_get_spacing_glyph(RID p_font) const override;
+	virtual void font_set_spacing_glyph(RID p_font, int p_value) override;
+
 	virtual void font_set_antialiased(RID p_font, bool p_antialiased) override;
 	virtual bool font_get_antialiased(RID p_font) const override;