Add PangoHbFace

PangoHbFace is a simple wrapper around hb_face_t.

This is an attempt to make a font backend that does
not depend on platform specifics and can be used in
tests.

1 files changed, 84 insertions, 0 deletions

diff --git a/pango/pango-hbface.h b/pango/pango-hbface.h
new file mode 100644
index 00000000..80f77509
--- /dev/null
+++ b/pango/pango-hbface.h
@@ -0,0 +1,84 @@
+/* Pango
+ *
+ * Copyright (C) 2021 Matthias Clasen
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#pragma once
+
+#include <pango/pango-types.h>
+#include <pango/pango-font.h>
+
+G_BEGIN_DECLS
+
+#define PANGO_TYPE_HB_FACE      (pango_hb_face_get_type ())
+
+PANGO_AVAILABLE_IN_1_52
+G_DECLARE_FINAL_TYPE (PangoHbFace, pango_hb_face, PANGO, HB_FACE, PangoFontFace)
+
+PANGO_AVAILABLE_IN_1_52
+PangoHbFace *   pango_hb_face_new_from_hb_face  (hb_face_t                  *face,
+                                                 int                         instance_id,
+                                                 const char                 *name,
+                                                 const PangoFontDescription *description);
+
+PANGO_AVAILABLE_IN_1_52
+PangoHbFace *   pango_hb_face_new_from_file     (const char                 *file,
+                                                 unsigned int                index,
+                                                 int                         instance_id,
+                                                 const char                 *name,
+                                                 const PangoFontDescription *description);
+
+PANGO_AVAILABLE_IN_1_52
+PangoHbFace *   pango_hb_face_new_synthetic     (PangoHbFace                *face,
+                                                 const PangoMatrix          *transform,
+                                                 gboolean                    embolden,
+                                                 const char                 *name,
+                                                 const PangoFontDescription *description);
+
+PANGO_AVAILABLE_IN_1_52
+PangoHbFace *   pango_hb_face_new_instance      (PangoHbFace                *face,
+                                                 const hb_variation_t       *variations,
+                                                 unsigned int                n_variations,
+                                                 const char                 *name,
+                                                 const PangoFontDescription *description);
+
+PANGO_AVAILABLE_IN_1_52
+hb_face_t *     pango_hb_face_get_hb_face       (PangoHbFace            *self);
+
+PANGO_AVAILABLE_IN_1_52
+const char *    pango_hb_face_get_file          (PangoHbFace            *self);
+
+PANGO_AVAILABLE_IN_1_52
+unsigned int    pango_hb_face_get_face_index    (PangoHbFace            *self);
+
+PANGO_AVAILABLE_IN_1_52
+int             pango_hb_face_get_instance_id   (PangoHbFace            *self);
+
+PANGO_AVAILABLE_IN_1_52
+const hb_variation_t *
+                pango_hb_face_get_variations   (PangoHbFace            *self,
+                                                unsigned int           *n_variations);
+
+PANGO_AVAILABLE_IN_1_52
+gboolean        pango_hb_face_get_embolden      (PangoHbFace            *self);
+
+PANGO_AVAILABLE_IN_1_52
+const PangoMatrix *
+                pango_hb_face_get_transform     (PangoHbFace            *self);
+
+G_END_DECLS