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author | Matthias Clasen <mclasen@redhat.com> | 2018-10-15 16:34:01 -0400 |
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committer | Matthias Clasen <mclasen@redhat.com> | 2019-07-12 09:04:17 -0400 |
commit | c51bbbaeb069c6bdac1aa6bd410909d8e20232a2 (patch) | |
tree | bb8bac7ab6d9e28aaa4774999b1d07395496c397 | |
parent | ff02c888d75199ce84de5bc7eeedf897da98a548 (diff) | |
download | pango-c51bbbaeb069c6bdac1aa6bd410909d8e20232a2.tar.gz |
Add api to get a hb_font_t
Add pango_font_get_hb_font, which will make it easier
access harfbuzz features.
-rw-r--r-- | docs/pango-sections.txt | 1 | ||||
-rw-r--r-- | pango/fonts.c | 50 | ||||
-rw-r--r-- | pango/pango-font-private.h | 6 | ||||
-rw-r--r-- | pango/pango-font.h | 3 | ||||
-rw-r--r-- | pango/pangofc-font.c | 39 | ||||
-rw-r--r-- | pango/pangofc-fontmap.c | 25 | ||||
-rw-r--r-- | pango/pangofc-fontmap.h | 6 |
7 files changed, 123 insertions, 7 deletions
diff --git a/docs/pango-sections.txt b/docs/pango-sections.txt index 9b077f56..e7130fd9 100644 --- a/docs/pango-sections.txt +++ b/docs/pango-sections.txt @@ -237,6 +237,7 @@ pango_font_get_glyph_extents pango_font_get_metrics pango_font_get_font_map pango_font_get_features +pango_font_get_hb_font <SUBSECTION> PangoFontFamily PANGO_TYPE_FONT_FAMILY diff --git a/pango/fonts.c b/pango/fonts.c index 081596df..4e9fa6b3 100644 --- a/pango/fonts.c +++ b/pango/fonts.c @@ -1617,11 +1617,29 @@ pango_parse_stretch (const char *str, * PangoFont */ -G_DEFINE_ABSTRACT_TYPE (PangoFont, pango_font, G_TYPE_OBJECT) +typedef struct { + hb_font_t *hb_font; +} PangoFontPrivate; + +G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (PangoFont, pango_font, G_TYPE_OBJECT) + +static void +pango_font_finalize (GObject *object) +{ + PangoFont *font = PANGO_FONT (object); + PangoFontPrivate *priv = pango_font_get_instance_private (font); + + hb_font_destroy (priv->hb_font); + + G_OBJECT_CLASS (pango_font_parent_class)->finalize (object); +} static void pango_font_class_init (PangoFontClass *class G_GNUC_UNUSED) { + GObjectClass *object_class = G_OBJECT_CLASS (class); + + object_class->finalize = pango_font_finalize; } static void @@ -1838,6 +1856,36 @@ pango_font_get_font_map (PangoFont *font) return NULL; } +/** + * pango_font_get_hb_font: + * @font: a #PangoFont + * + * Get a hb_font_t object backing this font. + * + * Returns: (transfer none) (nullable): the hb_font_t object backing the + * font, or %NULL if the font does not have one + * + * Since: 1.44 + */ +hb_font_t * +pango_font_get_hb_font (PangoFont *font) +{ + PangoFontPrivate *priv = pango_font_get_instance_private (font); + + if (G_UNLIKELY (!font)) + return NULL; + + if (priv->hb_font) + return priv->hb_font; + else if (PANGO_FONT_GET_CLASS (font)->create_hb_font) + { + priv->hb_font = PANGO_FONT_GET_CLASS (font)->create_hb_font (font); + return priv->hb_font; + } + + return NULL; +} + G_DEFINE_BOXED_TYPE (PangoFontMetrics, pango_font_metrics, pango_font_metrics_ref, pango_font_metrics_unref); diff --git a/pango/pango-font-private.h b/pango/pango-font-private.h index be399d7d..029bef99 100644 --- a/pango/pango-font-private.h +++ b/pango/pango-font-private.h @@ -179,11 +179,7 @@ struct _PangoFontClass hb_feature_t *features, guint len, guint *num_features); - - /*< private >*/ - - /* Padding for future expansion */ - void (*_pango_reserved1) (void); + hb_font_t * (*create_hb_font) (PangoFont *font); }; /* used for very rare and miserable situtations that we cannot even diff --git a/pango/pango-font.h b/pango/pango-font.h index e053875b..e7f5ef11 100644 --- a/pango/pango-font.h +++ b/pango/pango-font.h @@ -26,6 +26,7 @@ #include <pango/pango-types.h> #include <glib-object.h> +#include <hb.h> G_BEGIN_DECLS @@ -492,6 +493,8 @@ void pango_font_get_features (PangoFont *font, hb_feature_t *features, guint len, guint *num_features); +PANGO_AVAILABLE_IN_1_44 +hb_font_t * pango_font_get_hb_font (PangoFont *font); /** diff --git a/pango/pangofc-font.c b/pango/pangofc-font.c index 335cde42..a314de73 100644 --- a/pango/pangofc-font.c +++ b/pango/pangofc-font.c @@ -93,6 +93,7 @@ static void pango_fc_font_get_features (PangoFont *font, hb_feature_t *features, guint len, guint *num_features); +static hb_font_t * pango_fc_font_create_hb_font (PangoFont *font); #define PANGO_FC_FONT_LOCK_FACE(font) (PANGO_FC_FONT_GET_CLASS (font)->lock_face (font)) #define PANGO_FC_FONT_UNLOCK_FACE(font) (PANGO_FC_FONT_GET_CLASS (font)->unlock_face (font)) @@ -120,6 +121,8 @@ pango_fc_font_class_init (PangoFcFontClass *class) font_class->get_metrics = pango_fc_font_get_metrics; font_class->get_font_map = pango_fc_font_get_font_map; font_class->get_features = pango_fc_font_get_features; + font_class->create_hb_font = pango_fc_font_create_hb_font; + font_class->get_features = pango_fc_font_get_features; g_object_class_install_property (object_class, PROP_PATTERN, g_param_spec_pointer ("pattern", @@ -1062,4 +1065,40 @@ pango_fc_font_get_features (PangoFont *font, (*num_features)++; } } + +static hb_font_t * +pango_fc_font_create_hb_font (PangoFont *font) +{ + PangoFcFont *fcfont = PANGO_FC_FONT (font); + hb_face_t *hb_face; + + hb_face = pango_fc_font_map_get_hb_face (PANGO_FC_FONT_MAP (fcfont->fontmap), fcfont); + + return hb_font_create (hb_face); +} + +static void +pango_fc_font_get_features (PangoFont *font, + hb_feature_t *features, + guint len, + guint *num_features) +{ + /* Setup features from fontconfig pattern. */ + PangoFcFont *fc_font = PANGO_FC_FONT (font); + if (fc_font->font_pattern) + { + char *s; + while (*num_features < len && + FcResultMatch == FcPatternGetString (fc_font->font_pattern, + PANGO_FC_FONT_FEATURES, + *num_features, + (FcChar8 **) &s)) + { + gboolean ret = hb_feature_from_string (s, -1, &features[*num_features]); + features[*num_features].start = 0; + features[*num_features].end = (unsigned int) -1; + if (ret) + (*num_features)++; + } + } } diff --git a/pango/pangofc-fontmap.c b/pango/pangofc-fontmap.c index 20ef6c04..21277044 100644 --- a/pango/pangofc-fontmap.c +++ b/pango/pangofc-fontmap.c @@ -52,6 +52,7 @@ #include "pango-impl-utils.h" #include "pango-enum-types.h" #include "pango-coverage-private.h" +#include <hb-ft.h> /* Overview: @@ -166,6 +167,8 @@ struct _PangoFcFontFaceData FcPattern *pattern; /* Referenced pattern that owns filename */ PangoCoverage *coverage; PangoFcCmapCache *cmap_cache; + + hb_face_t *hb_face; }; struct _PangoFcFace @@ -297,6 +300,8 @@ pango_fc_font_face_data_free (PangoFcFontFaceData *data) if (data->cmap_cache) _pango_fc_cmap_cache_unref (data->cmap_cache); + hb_face_destroy (data->hb_face); + g_slice_free (PangoFcFontFaceData, data); } @@ -2726,3 +2731,23 @@ pango_fc_family_init (PangoFcFamily *fcfamily) { fcfamily->n_faces = -1; } + +hb_face_t * +pango_fc_font_map_get_hb_face (PangoFcFontMap *fcfontmap, + PangoFcFont *fcfont) +{ + PangoFcFontFaceData *data; + + data = pango_fc_font_map_get_font_face_data (fcfontmap, fcfont->font_pattern); + + if (!data->hb_face) + { + hb_blob_t *blob; + + blob = hb_blob_create_from_file (data->filename); + data->hb_face = hb_face_create (blob, data->id); + hb_blob_destroy (blob); + } + + return data->hb_face; +} diff --git a/pango/pangofc-fontmap.h b/pango/pangofc-fontmap.h index 5195d761..495adc52 100644 --- a/pango/pangofc-fontmap.h +++ b/pango/pangofc-fontmap.h @@ -26,6 +26,7 @@ #include <fontconfig/fontconfig.h> #include <pango/pangofc-decoder.h> #include <pango/pangofc-font.h> +#include <hb.h> G_BEGIN_DECLS @@ -42,7 +43,6 @@ typedef struct _PangoFcFontMap PangoFcFontMap; typedef struct _PangoFcFontMapClass PangoFcFontMapClass; typedef struct _PangoFcFontMapPrivate PangoFcFontMapPrivate; - PANGO_AVAILABLE_IN_ALL GType pango_fc_font_map_get_type (void) G_GNUC_CONST; @@ -87,6 +87,10 @@ PANGO_AVAILABLE_IN_1_4 PangoFontDescription *pango_fc_font_description_from_pattern (FcPattern *pattern, gboolean include_size); +PANGO_AVAILABLE_IN_1_44 +hb_face_t * pango_fc_font_map_get_hb_face (PangoFcFontMap *fcfontmap, + PangoFcFont *fcfont); + /** * PANGO_FC_GRAVITY: * |