diff options
Diffstat (limited to 'pango/pango-fontset.c')
| -rw-r--r-- | pango/pango-fontset.c | 284 |
1 files changed, 37 insertions, 247 deletions
diff --git a/pango/pango-fontset.c b/pango/pango-fontset.c index b8c15152..fc9e05b8 100644 --- a/pango/pango-fontset.c +++ b/pango/pango-fontset.c @@ -10,7 +10,7 @@ * * 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 + * 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 @@ -27,10 +27,10 @@ #include "pango-types.h" #include "pango-font-private.h" -#include "pango-fontset-private.h" +#include "pango-fontset.h" #include "pango-impl-utils.h" -static PangoFontMetrics *pango_fontset_real_get_metrics (PangoFontset *fontset); +static PangoFontMetrics *pango_fontset_real_get_metrics (PangoFontset *fontset); G_DEFINE_ABSTRACT_TYPE (PangoFontset, pango_fontset, G_TYPE_OBJECT); @@ -52,14 +52,14 @@ pango_fontset_class_init (PangoFontsetClass *class) * @fontset: a `PangoFontset` * @wc: a Unicode character * - * Returns the font in the fontset that contains the best glyph for a - * Unicode character. + * Returns the font in the fontset that contains the best + * glyph for a Unicode character. * * Return value: (transfer full): a `PangoFont` */ PangoFont * pango_fontset_get_font (PangoFontset *fontset, - guint wc) + guint wc) { g_return_val_if_fail (PANGO_IS_FONTSET (fontset), NULL); @@ -98,8 +98,8 @@ pango_fontset_get_metrics (PangoFontset *fontset) */ void pango_fontset_foreach (PangoFontset *fontset, - PangoFontsetForeachFunc func, - gpointer data) + PangoFontsetForeachFunc func, + gpointer data) { g_return_if_fail (PANGO_IS_FONTSET (fontset)); g_return_if_fail (func != NULL); @@ -109,8 +109,8 @@ pango_fontset_foreach (PangoFontset *fontset, static gboolean get_first_metrics_foreach (PangoFontset *fontset, - PangoFont *font, - gpointer data) + PangoFont *font, + gpointer data) { PangoFontMetrics *fontset_metrics = data; PangoLanguage *language = PANGO_FONTSET_GET_CLASS (fontset)->get_language (fontset); @@ -127,7 +127,7 @@ get_first_metrics_foreach (PangoFontset *fontset, pango_font_metrics_unref (font_metrics); - return TRUE; /* Stops iteration */ + return TRUE; /* Stops iteration */ } static PangoFontMetrics * @@ -157,32 +157,32 @@ pango_fontset_real_get_metrics (PangoFontset *fontset) gunichar wc = g_utf8_get_char (p); font = pango_fontset_get_font (fontset, wc); if (font) - { - if (g_hash_table_lookup (fonts_seen, font) == NULL) - { - raw_metrics = pango_font_get_metrics (font, language); - g_hash_table_insert (fonts_seen, font, font); - - if (count == 0) - { - metrics->ascent = raw_metrics->ascent; - metrics->descent = raw_metrics->descent; - metrics->approximate_char_width = raw_metrics->approximate_char_width; - metrics->approximate_digit_width = raw_metrics->approximate_digit_width; - } - else - { - metrics->ascent = MAX (metrics->ascent, raw_metrics->ascent); - metrics->descent = MAX (metrics->descent, raw_metrics->descent); - metrics->approximate_char_width += raw_metrics->approximate_char_width; - metrics->approximate_digit_width += raw_metrics->approximate_digit_width; - } - count++; - pango_font_metrics_unref (raw_metrics); - } - else - g_object_unref (font); - } + { + if (g_hash_table_lookup (fonts_seen, font) == NULL) + { + raw_metrics = pango_font_get_metrics (font, language); + g_hash_table_insert (fonts_seen, font, font); + + if (count == 0) + { + metrics->ascent = raw_metrics->ascent; + metrics->descent = raw_metrics->descent; + metrics->approximate_char_width = raw_metrics->approximate_char_width; + metrics->approximate_digit_width = raw_metrics->approximate_digit_width; + } + else + { + metrics->ascent = MAX (metrics->ascent, raw_metrics->ascent); + metrics->descent = MAX (metrics->descent, raw_metrics->descent); + metrics->approximate_char_width += raw_metrics->approximate_char_width; + metrics->approximate_digit_width += raw_metrics->approximate_digit_width; + } + count++; + pango_font_metrics_unref (raw_metrics); + } + else + g_object_unref (font); + } p = g_utf8_next_char (p); } @@ -197,213 +197,3 @@ pango_fontset_real_get_metrics (PangoFontset *fontset) return metrics; } - - -/* - * PangoFontsetSimple - */ - -#define PANGO_FONTSET_SIMPLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), PANGO_TYPE_FONTSET_SIMPLE, PangoFontsetSimpleClass)) -#define PANGO_IS_FONTSET_SIMPLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), PANGO_TYPE_FONTSET_SIMPLE)) -#define PANGO_FONTSET_SIMPLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), PANGO_TYPE_FONTSET_SIMPLE, PangoFontsetSimpleClass)) - -static void pango_fontset_simple_finalize (GObject *object); -static PangoFontMetrics *pango_fontset_simple_get_metrics (PangoFontset *fontset); -static PangoLanguage * pango_fontset_simple_get_language (PangoFontset *fontset); -static PangoFont * pango_fontset_simple_get_font (PangoFontset *fontset, - guint wc); -static void pango_fontset_simple_foreach (PangoFontset *fontset, - PangoFontsetForeachFunc func, - gpointer data); - -struct _PangoFontsetSimple -{ - PangoFontset parent_instance; - - GPtrArray *fonts; - GPtrArray *coverages; - PangoLanguage *language; -}; - -struct _PangoFontsetSimpleClass -{ - PangoFontsetClass parent_class; -}; - -/** - * pango_fontset_simple_new: - * @language: a `PangoLanguage` tag - * - * Creates a new `PangoFontsetSimple` for the given language. - * - * Return value: the newly allocated `PangoFontsetSimple` - */ -PangoFontsetSimple * -pango_fontset_simple_new (PangoLanguage *language) -{ - PangoFontsetSimple *fontset; - - fontset = g_object_new (PANGO_TYPE_FONTSET_SIMPLE, NULL); - fontset->language = language; - - return fontset; -} - - -G_DEFINE_TYPE (PangoFontsetSimple, pango_fontset_simple, PANGO_TYPE_FONTSET); - -static void -pango_fontset_simple_class_init (PangoFontsetSimpleClass *class) -{ - GObjectClass *object_class = G_OBJECT_CLASS (class); - PangoFontsetClass *fontset_class = PANGO_FONTSET_CLASS (class); - - object_class->finalize = pango_fontset_simple_finalize; - - fontset_class->get_font = pango_fontset_simple_get_font; - fontset_class->get_metrics = pango_fontset_simple_get_metrics; - fontset_class->get_language = pango_fontset_simple_get_language; - fontset_class->foreach = pango_fontset_simple_foreach; -} - -static void -pango_fontset_simple_init (PangoFontsetSimple *fontset) -{ - fontset->fonts = g_ptr_array_new (); - fontset->coverages = g_ptr_array_new (); - fontset->language = NULL; -} - -static void -pango_fontset_simple_finalize (GObject *object) -{ - PangoFontsetSimple *fontset = PANGO_FONTSET_SIMPLE (object); - PangoCoverage *coverage; - unsigned int i; - - for (i = 0; i < fontset->fonts->len; i++) - g_object_unref (g_ptr_array_index(fontset->fonts, i)); - - g_ptr_array_free (fontset->fonts, TRUE); - - for (i = 0; i < fontset->coverages->len; i++) - { - coverage = g_ptr_array_index (fontset->coverages, i); - if (coverage) - pango_coverage_unref (coverage); - } - - g_ptr_array_free (fontset->coverages, TRUE); - - G_OBJECT_CLASS (pango_fontset_simple_parent_class)->finalize (object); -} - -/** - * pango_fontset_simple_append: - * @fontset: a `PangoFontsetSimple`. - * @font: (transfer full): a `PangoFont`. - * - * Adds a font to the fontset. - * - * The fontset takes ownership of @font. - */ -void -pango_fontset_simple_append (PangoFontsetSimple *fontset, - PangoFont *font) -{ - g_ptr_array_add (fontset->fonts, font); - g_ptr_array_add (fontset->coverages, NULL); -} - -/** - * pango_fontset_simple_size: - * @fontset: a `PangoFontsetSimple`. - * - * Returns the number of fonts in the fontset. - * - * Return value: the size of @fontset - */ -int -pango_fontset_simple_size (PangoFontsetSimple *fontset) -{ - return fontset->fonts->len; -} - -static PangoLanguage * -pango_fontset_simple_get_language (PangoFontset *fontset) -{ - PangoFontsetSimple *simple = PANGO_FONTSET_SIMPLE (fontset); - - return simple->language; -} - -static PangoFontMetrics * -pango_fontset_simple_get_metrics (PangoFontset *fontset) -{ - PangoFontsetSimple *simple = PANGO_FONTSET_SIMPLE (fontset); - - if (simple->fonts->len == 1) - return pango_font_get_metrics (PANGO_FONT (g_ptr_array_index(simple->fonts, 0)), - simple->language); - - return PANGO_FONTSET_CLASS (pango_fontset_simple_parent_class)->get_metrics (fontset); -} - -static PangoFont * -pango_fontset_simple_get_font (PangoFontset *fontset, - guint wc) -{ - PangoFontsetSimple *simple = PANGO_FONTSET_SIMPLE (fontset); - PangoCoverageLevel best_level = PANGO_COVERAGE_NONE; - PangoCoverageLevel level; - PangoFont *font; - PangoCoverage *coverage; - int result = -1; - unsigned int i; - - for (i = 0; i < simple->fonts->len; i++) - { - coverage = g_ptr_array_index (simple->coverages, i); - - if (coverage == NULL) - { - font = g_ptr_array_index (simple->fonts, i); - - coverage = pango_font_get_coverage (font, simple->language); - g_ptr_array_index (simple->coverages, i) = coverage; - } - - level = pango_coverage_get (coverage, wc); - - if (result == -1 || level > best_level) - { - result = i; - best_level = level; - if (level == PANGO_COVERAGE_EXACT) - break; - } - } - - if (G_UNLIKELY (result == -1)) - return NULL; - - font = g_ptr_array_index(simple->fonts, result); - return g_object_ref (font); -} - -static void -pango_fontset_simple_foreach (PangoFontset *fontset, - PangoFontsetForeachFunc func, - gpointer data) -{ - PangoFontsetSimple *simple = PANGO_FONTSET_SIMPLE (fontset); - unsigned int i; - - for (i = 0; i < simple->fonts->len; i++) - { - if ((*func) (fontset, - g_ptr_array_index (simple->fonts, i), - data)) - return; - } -} |