static VALUE rg_get(int argc, VALUE *argv, VALUE self) { VALUE type, ret; PangoAttribute* attr; int i; rb_scan_args(argc, argv, "01", &type); if (NIL_P(type)){ PangoAttrIterator* iter = _SELF(self); ret = rb_ary_new(); for (i = 0; i < PANGO_ATTR_SCALE + 1; i++){ attr = pango_attr_iterator_get(iter, i); if (attr) rb_ary_push(ret, ATTR2RVAL(attr)); } } else { attr = pango_attr_iterator_get(_SELF(self), FIX2INT(type)); ret = attr ? ATTR2RVAL(attr) : Qnil; } return ret; }
static void go_pango_translate_here (PangoAttrIterator *state_iter, PangoAttrIterator *attr_iter, PangoAttrList *attrs) { double font_scale = 1.; double scale = 1.; int rise = 0; PangoAttribute *pa; PangoFontDescription *desc = pango_font_description_new (); GSList *the_attrs, *l; gint range_start, range_end; pango_attr_iterator_range (attr_iter, &range_start, &range_end); if (range_start == range_end) return; desc = pango_font_description_new (); pango_attr_iterator_get_font (state_iter, desc, NULL, NULL); font_scale = pango_font_description_get_size (desc)/ (double)PANGO_SCALE/10.; pango_font_description_free (desc); pa = pango_attr_iterator_get (state_iter, PANGO_ATTR_SCALE); if (pa) scale = ((PangoAttrFloat *)pa)->value; pa = pango_attr_iterator_get (state_iter, PANGO_ATTR_RISE); if (pa) rise = ((PangoAttrInt *)pa)->value; /* We should probably figured out the default font size used */ /* rather than assuming it is 10 pts * scale */ if (font_scale == 0) font_scale = scale; the_attrs = pango_attr_iterator_get_attrs (attr_iter); for (l = the_attrs; l != NULL; l = l->next) { PangoAttribute *attribute = l->data; PangoAttrType type = attribute->klass->type; if (type == go_pango_attr_superscript_get_attr_type ()) { GOPangoAttrSuperscript *attr = (GOPangoAttrSuperscript *)attribute; if (attr->val) { scale *= GO_SUPERSCRIPT_SCALE; rise += GO_SUPERSCRIPT_RISE * font_scale; font_scale *= GO_SUPERSCRIPT_SCALE; } } else { /* go_pango_attr_subscript_type */ GOPangoAttrSubscript *attr = (GOPangoAttrSubscript *)attribute; if (attr->val) { scale *= GO_SUBSCRIPT_SCALE; rise += GO_SUBSCRIPT_RISE * font_scale; font_scale *= GO_SUBSCRIPT_SCALE; } } } if (the_attrs != NULL) { PangoAttribute *attr = pango_attr_scale_new (scale); attr->start_index = range_start; attr->end_index = range_end; pango_attr_list_insert (attrs, attr); attr = pango_attr_rise_new (rise); attr->start_index = range_start; attr->end_index = range_end; pango_attr_list_insert (attrs, attr); } g_slist_free_full (the_attrs, (GDestroyNotify)pango_attribute_destroy); }
/** * gail_misc_layout_get_run_attributes: * @attrib_set: The #AtkAttributeSet to add the attribute to * @layout: The PangoLayout from which the attributes will be obtained * @text: The text * @offset: The offset at which the attributes are required * @start_offset: The start offset of the current run * @end_offset: The end offset of the current run * * Adds the attributes for the run starting at offset to the specified * attribute set. * * Returns: A pointer to the #AtkAttributeSet. **/ AtkAttributeSet* gail_misc_layout_get_run_attributes (AtkAttributeSet *attrib_set, PangoLayout *layout, const gchar *text, gint offset, gint *start_offset, gint *end_offset) { PangoAttrIterator *iter; PangoAttrList *attr; PangoAttrString *pango_string; PangoAttrInt *pango_int; PangoAttrColor *pango_color; PangoAttrLanguage *pango_lang; PangoAttrFloat *pango_float; gint index, start_index, end_index; gboolean is_next = TRUE; gchar *value = NULL; glong len; len = g_utf8_strlen (text, -1); /* Grab the attributes of the PangoLayout, if any */ if ((attr = pango_layout_get_attributes (layout)) == NULL) { *start_offset = 0; *end_offset = len; return attrib_set; } iter = pango_attr_list_get_iterator (attr); /* Get invariant range offsets */ /* If offset out of range, set offset in range */ if (offset > len) offset = len; else if (offset < 0) offset = 0; index = g_utf8_offset_to_pointer (text, offset) - text; pango_attr_iterator_range (iter, &start_index, &end_index); while (is_next) { if (index >= start_index && index < end_index) { *start_offset = g_utf8_pointer_to_offset (text, text + start_index); if (end_index == G_MAXINT) /* Last iterator */ end_index = len; *end_offset = g_utf8_pointer_to_offset (text, text + end_index); break; } is_next = pango_attr_iterator_next (iter); pango_attr_iterator_range (iter, &start_index, &end_index); } /* Get attributes */ if ((pango_string = (PangoAttrString*) pango_attr_iterator_get (iter, PANGO_ATTR_FAMILY)) != NULL) { value = g_strdup_printf("%s", pango_string->value); attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_FAMILY_NAME, value); } if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter, PANGO_ATTR_STYLE)) != NULL) { attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_STYLE, g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STYLE, pango_int->value))); } if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter, PANGO_ATTR_WEIGHT)) != NULL) { value = g_strdup_printf("%i", pango_int->value); attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_WEIGHT, value); } if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter, PANGO_ATTR_VARIANT)) != NULL) { attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_VARIANT, g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_VARIANT, pango_int->value))); } if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter, PANGO_ATTR_STRETCH)) != NULL) { attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_STRETCH, g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STRETCH, pango_int->value))); } if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter, PANGO_ATTR_SIZE)) != NULL) { value = g_strdup_printf("%i", pango_int->value / PANGO_SCALE); attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_SIZE, value); } if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter, PANGO_ATTR_UNDERLINE)) != NULL) { attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_UNDERLINE, g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_UNDERLINE, pango_int->value))); } if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter, PANGO_ATTR_STRIKETHROUGH)) != NULL) { attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_STRIKETHROUGH, g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_STRIKETHROUGH, pango_int->value))); } if ((pango_int = (PangoAttrInt*) pango_attr_iterator_get (iter, PANGO_ATTR_RISE)) != NULL) { value = g_strdup_printf("%i", pango_int->value); attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_RISE, value); } if ((pango_lang = (PangoAttrLanguage*) pango_attr_iterator_get (iter, PANGO_ATTR_LANGUAGE)) != NULL) { value = g_strdup( pango_language_to_string( pango_lang->value)); attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_LANGUAGE, value); } if ((pango_float = (PangoAttrFloat*) pango_attr_iterator_get (iter, PANGO_ATTR_SCALE)) != NULL) { value = g_strdup_printf("%g", pango_float->value); attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_SCALE, value); } if ((pango_color = (PangoAttrColor*) pango_attr_iterator_get (iter, PANGO_ATTR_FOREGROUND)) != NULL) { value = g_strdup_printf ("%u,%u,%u", pango_color->color.red, pango_color->color.green, pango_color->color.blue); attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_FG_COLOR, value); } if ((pango_color = (PangoAttrColor*) pango_attr_iterator_get (iter, PANGO_ATTR_BACKGROUND)) != NULL) { value = g_strdup_printf ("%u,%u,%u", pango_color->color.red, pango_color->color.green, pango_color->color.blue); attrib_set = gail_misc_add_attribute (attrib_set, ATK_TEXT_ATTR_BG_COLOR, value); } pango_attr_iterator_destroy (iter); return attrib_set; }
static AtkAttributeSet * get_run_attributes (PangoAttrList *attrs, const gchar *text, gint offset, gint *start_offset, gint *end_offset) { AtkAttributeSet *atk_attr_set = NULL; PangoAttrString *pango_string; PangoAttrInt *pango_int; PangoAttrColor *pango_color; PangoAttrIterator *iter; gint i, start, end; gboolean has_attrs = FALSE; glong text_length; gchar *attr_value; text_length = g_utf8_strlen (text, -1); if (offset < 0 || offset >= text_length) return NULL; /* Check if there are attributes for the offset, * and set the attributes range if positive */ iter = pango_attr_list_get_iterator (attrs); i = g_utf8_offset_to_pointer (text, offset) - text; do { pango_attr_iterator_range (iter, &start, &end); if (i >= start && i < end) { *start_offset = g_utf8_pointer_to_offset (text, text + start); if (end == G_MAXINT) /* Last iterator */ end = text_length; *end_offset = g_utf8_pointer_to_offset (text, text + end); has_attrs = TRUE; } } while (!has_attrs && pango_attr_iterator_next (iter)); if (!has_attrs) { pango_attr_iterator_destroy (iter); return NULL; } /* Create the AtkAttributeSet from the Pango attributes */ pango_string = (PangoAttrString *) pango_attr_iterator_get (iter, PANGO_ATTR_FAMILY); if (pango_string) { attr_value = g_strdup (pango_string->value); atk_attr_set = add_attribute (atk_attr_set, ATK_TEXT_ATTR_FAMILY_NAME, attr_value); } pango_int = (PangoAttrInt *) pango_attr_iterator_get (iter, PANGO_ATTR_SIZE); if (pango_int) { attr_value = g_strdup_printf ("%i", pango_int->value / PANGO_SCALE); atk_attr_set = add_attribute (atk_attr_set, ATK_TEXT_ATTR_SIZE, attr_value); } pango_int = (PangoAttrInt *) pango_attr_iterator_get (iter, PANGO_ATTR_UNDERLINE); if (pango_int) { atk_attr_set = add_attribute (atk_attr_set, ATK_TEXT_ATTR_UNDERLINE, g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_UNDERLINE, pango_int->value))); } pango_color = (PangoAttrColor *) pango_attr_iterator_get (iter, PANGO_ATTR_FOREGROUND); if (pango_color) { attr_value = g_strdup_printf ("%u,%u,%u", pango_color->color.red, pango_color->color.green, pango_color->color.blue); atk_attr_set = add_attribute (atk_attr_set, ATK_TEXT_ATTR_FG_COLOR, attr_value); } pango_attr_iterator_destroy (iter); return atk_attr_set; }
static void gtk_text_buffer_insert_markup(GtkTextBuffer * buffer, GtkTextIter * iter, const gchar * markup) { PangoAttrIterator *paiter; PangoAttrList *attrlist; GtkTextMark *mark; GError *error = NULL; gchar *text; g_return_if_fail(GTK_IS_TEXT_BUFFER(buffer)); g_return_if_fail(markup != NULL); if (*markup == '\000') return; /* invalid */ if (!pango_parse_markup(markup, -1, 0, &attrlist, &text, NULL, &error)) { g_warning("Invalid markup string: %s", error->message); g_error_free(error); return; } /* trivial, no markup */ if (attrlist == NULL) { gtk_text_buffer_insert(buffer, iter, text, -1); g_free(text); return; } /* create mark with right gravity */ mark = gtk_text_buffer_create_mark(buffer, NULL, iter, FALSE); paiter = pango_attr_list_get_iterator(attrlist); do { PangoAttribute *attr; GtkTextTag *tag; GtkTextTag *tag_para; gint start, end; pango_attr_iterator_range(paiter, &start, &end); if (end == G_MAXINT) /* last chunk */ end = start - 1; /* resulting in -1 to be passed to _insert */ tag = gtk_text_tag_new(NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_LANGUAGE))) g_object_set(tag, "language", pango_language_to_string(((PangoAttrLanguage *) attr)->value), NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_FAMILY))) g_object_set(tag, "family", ((PangoAttrString *) attr)->value, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_STYLE))) g_object_set(tag, "style", ((PangoAttrInt *) attr)->value, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_WEIGHT))) g_object_set(tag, "weight", ((PangoAttrInt *) attr)->value, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_VARIANT))) g_object_set(tag, "variant", ((PangoAttrInt *) attr)->value, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_STRETCH))) g_object_set(tag, "stretch", ((PangoAttrInt *) attr)->value, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_SIZE))) g_object_set(tag, "size", ((PangoAttrInt *) attr)->value, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_FONT_DESC))) g_object_set(tag, "font-desc", ((PangoAttrFontDesc *) attr)->desc, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_FOREGROUND))) { GdkColor col = { 0, ((PangoAttrColor *) attr)->color.red, ((PangoAttrColor *) attr)->color.green, ((PangoAttrColor *) attr)->color.blue }; g_object_set(tag, "foreground-gdk", &col, NULL); } if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_BACKGROUND))) { GdkColor col = { 0, ((PangoAttrColor *) attr)->color.red, ((PangoAttrColor *) attr)->color.green, ((PangoAttrColor *) attr)->color.blue }; g_object_set(tag, "background-gdk", &col, NULL); } if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_UNDERLINE))) g_object_set(tag, "underline", ((PangoAttrInt *) attr)->value, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_STRIKETHROUGH))) g_object_set(tag, "strikethrough", (gboolean) (((PangoAttrInt *) attr)->value != 0), NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_RISE))) g_object_set(tag, "rise", ((PangoAttrInt *) attr)->value, NULL); if ((attr = pango_attr_iterator_get(paiter, PANGO_ATTR_SCALE))) g_object_set(tag, "scale", ((PangoAttrFloat *) attr)->value, NULL); gtk_text_tag_table_add(gtk_text_buffer_get_tag_table(buffer), tag); tag_para = gtk_text_tag_table_lookup(gtk_text_buffer_get_tag_table (buffer), "para"); gtk_text_buffer_insert_with_tags(buffer, iter, text + start, end - start, tag, tag_para, NULL); /* mark had right gravity, so it should be * at the end of the inserted text now */ gtk_text_buffer_get_iter_at_mark(buffer, iter, mark); } while (pango_attr_iterator_next(paiter)); gtk_text_buffer_delete_mark(buffer, mark); pango_attr_iterator_destroy(paiter); pango_attr_list_unref(attrlist); g_free(text); }