[pango/visible-things: 10/35] layout: Add pango_layout_set_shape_flags

[Matthias Clasen <matthiasc src gnome org>]

commit d4237e4f1ab70d432eca478413645f6d8a00b33e
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Jul 7 13:39:20 2019 -0400

    layout: Add pango_layout_set_shape_flags
    
    This will let apps opt into shaping options
    from the high-level api.

 pango/pango-layout-private.h |  1 +
 pango/pango-layout.c         | 23 +++++++++++++++++++++--
 pango/pango-layout.h         |  6 ++++++
 3 files changed, 28 insertions(+), 2 deletions(-)
---
diff --git a/pango/pango-layout-private.h b/pango/pango-layout-private.h
index 38e2e196..440585be 100644
--- a/pango/pango-layout-private.h
+++ b/pango/pango-layout-private.h
@@ -65,6 +65,7 @@ struct _PangoLayout
   guint is_wrapped : 1;                /* Whether the layout has any wrapped lines */
   guint ellipsize : 2;         /* PangoEllipsizeMode */
   guint is_ellipsized : 1;     /* Whether the layout has any ellipsized lines */
+  PangoShapeFlags shape_flags;  /* Flags influencing shaping */
   int unknown_glyphs_count;    /* number of unknown glyphs */
 
   /* some caching */
diff --git a/pango/pango-layout.c b/pango/pango-layout.c
index c956f97c..74d3dedb 100644
--- a/pango/pango-layout.c
+++ b/pango/pango-layout.c
@@ -650,6 +650,26 @@ pango_layout_get_line_spacing (PangoLayout *layout)
   return layout->line_spacing;
 }
 
+void
+pango_layout_set_shape_flags (PangoLayout     *layout,
+                              PangoShapeFlags  flags)
+{
+  g_return_if_fail (layout != NULL);
+
+  if (layout->shape_flags != flags)
+    {
+      layout->shape_flags = flags;
+      layout_changed (layout);
+    }
+}
+
+PangoShapeFlags
+pango_layout_get_shape_flags (PangoLayout *layout)
+{
+  g_return_val_if_fail (layout != NULL, FALSE);
+  return layout->shape_flags;
+}
+
 /**
  * pango_layout_set_attributes:
  * @layout: a #PangoLayout
@@ -3310,7 +3330,6 @@ shape_run (PangoLayoutLine *line,
 {
   PangoLayout *layout = line->layout;
   PangoGlyphString *glyphs = pango_glyph_string_new ();
-  PangoShapeFlags flags = PANGO_SHAPE_FLAGS_NONE;
 
   if (layout->text[item->offset] == '\t')
     shape_tab (line, glyphs);
@@ -3323,7 +3342,7 @@ shape_run (PangoLayoutLine *line,
       else
         pango_shape_with_options (layout->text + item->offset, item->length,
                                   layout->text, layout->length,
-                                  &item->analysis, flags, glyphs);
+                                  &item->analysis, layout->shape_flags, glyphs);
 
       if (state->properties.letter_spacing)
        {
diff --git a/pango/pango-layout.h b/pango/pango-layout.h
index 96155715..cd610b8c 100644
--- a/pango/pango-layout.h
+++ b/pango/pango-layout.h
@@ -211,6 +211,12 @@ void           pango_layout_set_line_spacing     (PangoLayout                *la
                                                   float                       spread);
 PANGO_AVAILABLE_IN_1_44
 float          pango_layout_get_line_spacing     (PangoLayout                *layout);
+PANGO_AVAILABLE_IN_1_44
+void           pango_layout_set_shape_flags      (PangoLayout                *layout,
+                                                  PangoShapeFlags             flags);
+PANGO_AVAILABLE_IN_1_44
+PangoShapeFlags pango_layout_get_shape_flags     (PangoLayout                *layout);
+
 PANGO_AVAILABLE_IN_ALL
 void           pango_layout_set_justify          (PangoLayout                *layout,
                                                  gboolean                    justify);