From 5c3a5761b48518f397f6d5befbea64212866b57d Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Sun, 27 Dec 2020 00:59:02 -0500
Subject: [PATCH] gsk: Add gsk_path_builder_add_layout

This api makes it easy to turn text into a path that
can be further manipulated. The implementation currently
goes via cairo.
---
 gsk/gskpathbuilder.c | 33 +++++++++++++++++++++++++++++++++
 gsk/gskpathbuilder.h |  3 +++
 2 files changed, 36 insertions(+)

diff --git a/gsk/gskpathbuilder.c b/gsk/gskpathbuilder.c
index 7752635420..e6066239c6 100644
--- a/gsk/gskpathbuilder.c
+++ b/gsk/gskpathbuilder.c
@@ -950,3 +950,36 @@ gsk_path_builder_svg_arc_to (GskPathBuilder *self,
                    t);
     }
 }
+
+/**
+ * gsk_path_builder_add_layout:
+ * @self: a #GskPathBuilder
+ * @layout: the pango layout to add
+ *
+ * Adds the outlines for the glyphs in @layout to
+ * the builder.
+ */
+void
+gsk_path_builder_add_layout (GskPathBuilder *self,
+                             PangoLayout    *layout)
+{
+  cairo_surface_t *surface;
+  cairo_t *cr;
+  cairo_path_t *cairo_path;
+  GskPath *path;
+
+  surface = cairo_recording_surface_create (CAIRO_CONTENT_COLOR_ALPHA, NULL);
+  cr = cairo_create (surface);
+
+  pango_cairo_layout_path (cr, layout);
+  cairo_path = cairo_copy_path (cr);
+  path = gsk_path_new_from_cairo (cairo_path);
+
+  gsk_path_builder_add_path (self, path);
+
+  gsk_path_unref (path);
+
+  cairo_path_destroy (cairo_path);
+  cairo_destroy (cr);
+  cairo_surface_destroy (surface);
+}
diff --git a/gsk/gskpathbuilder.h b/gsk/gskpathbuilder.h
index ab1aec55b8..12522c3c3a 100644
--- a/gsk/gskpathbuilder.h
+++ b/gsk/gskpathbuilder.h
@@ -53,6 +53,9 @@ GDK_AVAILABLE_IN_ALL
 void                    gsk_path_builder_add_path               (GskPathBuilder         *self,
                                                                  GskPath                *path);
 GDK_AVAILABLE_IN_ALL
+void                    gsk_path_builder_add_layout             (GskPathBuilder         *self,
+                                                                 PangoLayout            *layout);
+GDK_AVAILABLE_IN_ALL
 void                    gsk_path_builder_add_rect               (GskPathBuilder         *self,
                                                                  const graphene_rect_t  *rect);
 GDK_AVAILABLE_IN_ALL