5 extern GPrivate *glk_data_key;
7 static gboolean style_accept(GScanner *scanner, GTokenType token);
8 static gboolean style_accept_style_selector(GScanner *scanner);
9 static gboolean style_accept_style_hint(GScanner *scanner, GtkTextTag *current_tag);
10 static void style_add_tag_to_textbuffer(gpointer key, gpointer tag, gpointer tag_table);
11 static void style_table_copy(gpointer key, gpointer tag, gpointer target_table);
12 static GtkTextTag* gtk_text_tag_copy(GtkTextTag *tag);
16 * @styl: The style to apply
18 * Changes the style of the current output stream. @styl should be one of the
19 * <code>style_</code> constants listed above. However, any value is actually
20 * legal; if the interpreter does not recognize the style value, it will treat
21 * it as %style_Normal.
23 * This policy allows for the future definition of styles without breaking old
28 glk_set_style(glui32 styl)
30 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
31 g_return_if_fail(glk_data->current_stream != NULL);
32 glk_set_style_stream(glk_data->current_stream, styl);
35 static const gchar* TAG_NAMES[] = {
49 /* Internal function: mapping from style enum to tag name */
51 get_tag_name(glui32 style)
53 if(style >= style_NUMSTYLES) {
54 WARNING("Unsupported style");
57 return (gchar*) TAG_NAMES[style];
62 * glk_set_style_stream:
63 * @str: Output stream to change the style of
64 * @styl: The style to apply
66 * This changes the style of the stream @str. See glk_set_style().
69 glk_set_style_stream(strid_t str, glui32 styl) {
70 if(str->window == NULL)
73 flush_window_buffer(str->window);
74 str->style = get_tag_name(styl);
77 /* Internal function: call this to initialize the default styles to a textbuffer. */
79 style_init_textbuffer(GtkTextBuffer *buffer)
81 g_return_if_fail(buffer != NULL);
83 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
84 if( G_UNLIKELY(!glk_data->style_initialized) ) {
87 g_hash_table_foreach(glk_data->current_styles->text_buffer, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
90 /* Internal function: call this to initialize the default styles to a textgrid. */
92 style_init_textgrid(GtkTextBuffer *buffer)
94 g_return_if_fail(buffer != NULL);
96 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
97 if( G_UNLIKELY(!glk_data->style_initialized) ) {
100 g_hash_table_foreach(glk_data->current_styles->text_grid, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
103 /* Internal function used to iterate over the default text tag table, applying them to a textbuffer */
105 style_add_tag_to_textbuffer(gpointer key, gpointer tag, gpointer tag_table)
107 gtk_text_tag_table_add( tag_table, gtk_text_tag_copy(tag) );
110 /* Internal function used to iterate over a style table, copying it */
112 style_table_copy(gpointer key, gpointer tag, gpointer target_table)
114 g_return_if_fail(key != NULL);
115 g_return_if_fail(tag != NULL);
116 g_return_if_fail(target_table != NULL);
118 g_hash_table_insert(target_table, key, gtk_text_tag_copy( GTK_TEXT_TAG(tag) ));
121 /* Internal function that copies a text tag */
123 gtk_text_tag_copy(GtkTextTag *tag)
127 g_return_val_if_fail(tag != NULL, NULL);
129 copy = gtk_text_tag_new(tag->name);
130 gtk_text_attributes_copy_values(tag->values, copy->values);
132 #define _COPY_FLAG(flag) copy->flag = tag->flag
133 _COPY_FLAG (bg_color_set);
134 _COPY_FLAG (bg_color_set);
135 _COPY_FLAG (bg_stipple_set);
136 _COPY_FLAG (fg_color_set);
137 _COPY_FLAG (fg_stipple_set);
138 _COPY_FLAG (justification_set);
139 _COPY_FLAG (left_margin_set);
140 _COPY_FLAG (indent_set);
141 _COPY_FLAG (rise_set);
142 _COPY_FLAG (strikethrough_set);
143 _COPY_FLAG (right_margin_set);
144 _COPY_FLAG (pixels_above_lines_set);
145 _COPY_FLAG (pixels_below_lines_set);
146 _COPY_FLAG (pixels_inside_wrap_set);
147 _COPY_FLAG (tabs_set);
148 _COPY_FLAG (underline_set);
149 _COPY_FLAG (wrap_mode_set);
150 _COPY_FLAG (bg_full_height_set);
151 _COPY_FLAG (invisible_set);
152 _COPY_FLAG (editable_set);
153 _COPY_FLAG (language_set);
159 /* Internal function that reads the default styles from a CSS file */
163 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
164 GHashTable *default_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
165 GHashTable *default_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
166 GHashTable *current_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
167 GHashTable *current_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
170 /* Create the CSS file scanner */
171 GScanner *scanner = g_scanner_new(NULL);
173 int f = open(glk_data->css_file, O_RDONLY);
174 g_return_if_fail(f != -1);
175 g_scanner_input_file(scanner, f);
176 scanner->input_name = glk_data->css_file;
177 scanner->config->cset_identifier_first = G_CSET_a_2_z G_CSET_A_2_Z "#";
178 scanner->config->cset_identifier_nth = G_CSET_a_2_z G_CSET_A_2_Z "-_" G_CSET_DIGITS;
179 scanner->config->symbol_2_token = TRUE;
180 scanner->config->cpair_comment_single = NULL;
181 scanner->config->scan_float = FALSE;
183 /* Initialise the default styles */
184 g_hash_table_insert(default_text_grid_styles, "normal", gtk_text_tag_new("normal"));
186 tag = gtk_text_tag_new("emphasized");
187 g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
188 g_hash_table_insert(default_text_grid_styles, "emphasized", tag);
190 tag = gtk_text_tag_new("preformatted");
191 g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
192 g_hash_table_insert(default_text_grid_styles, "preformatted", tag);
194 tag = gtk_text_tag_new("header");
195 g_object_set(tag, "size-points", 18.0, "weight", PANGO_WEIGHT_BOLD, NULL);
196 g_hash_table_insert(default_text_grid_styles, "header", tag);
198 tag = gtk_text_tag_new("subheader");
199 g_object_set(tag, "size-points", 14.0, "weight", PANGO_WEIGHT_BOLD, NULL);
200 g_hash_table_insert(default_text_grid_styles, "subheader", tag);
202 tag = gtk_text_tag_new("alert");
203 g_object_set(tag, "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
204 g_hash_table_insert(default_text_grid_styles, "alert", tag);
206 tag = gtk_text_tag_new("note");
207 g_object_set(tag, "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
208 g_hash_table_insert(default_text_grid_styles, "note", tag);
210 tag = gtk_text_tag_new("block-quote");
211 g_object_set(tag, "justification", GTK_JUSTIFY_CENTER, "style", PANGO_STYLE_ITALIC, NULL);
212 g_hash_table_insert(default_text_grid_styles, "block-quote", tag);
214 g_hash_table_insert(default_text_grid_styles, "input", gtk_text_tag_new("input"));
215 g_hash_table_insert(default_text_grid_styles, "user1", gtk_text_tag_new("user1"));
216 g_hash_table_insert(default_text_grid_styles, "user2", gtk_text_tag_new("user2"));
218 g_hash_table_foreach(default_text_grid_styles, style_table_copy, default_text_buffer_styles);
219 glk_data->default_styles->text_grid = default_text_grid_styles;
220 glk_data->default_styles->text_buffer = default_text_buffer_styles;
222 /* Run the scanner over the CSS file, overriding defaults */
223 while( g_scanner_peek_next_token(scanner) != G_TOKEN_EOF) {
224 if( !style_accept_style_selector(scanner) )
228 /* Set the current style to a copy of the default style */
229 g_hash_table_foreach(default_text_grid_styles, style_table_copy, current_text_grid_styles);
230 g_hash_table_foreach(default_text_buffer_styles, style_table_copy, current_text_buffer_styles);
231 glk_data->current_styles->text_grid = current_text_grid_styles;
232 glk_data->current_styles->text_buffer = current_text_buffer_styles;
234 g_scanner_destroy(scanner);
236 glk_data->style_initialized = TRUE;
239 /* Internal function: parses a token */
241 style_accept(GScanner *scanner, GTokenType token)
243 GTokenType next = g_scanner_get_next_token(scanner);
245 g_scanner_unexp_token(scanner, token, NULL, NULL, NULL, "CSS Error", 1);
252 /* Internal function: parses a style selector */
254 style_accept_style_selector(GScanner *scanner)
256 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
258 GtkTextTag *current_tag;
260 GTokenType token = g_scanner_get_next_token(scanner);
261 GTokenValue value = g_scanner_cur_value(scanner);
264 token != G_TOKEN_IDENTIFIER ||
265 ( strcmp(value.v_identifier, "buffer") && strcmp(value.v_identifier, "grid") )
267 g_scanner_error(scanner, "CSS Error: buffer/grid expected");
271 field = g_strdup(value.v_identifier);
273 if( !style_accept(scanner, '.') )
276 token = g_scanner_get_next_token(scanner);
277 value = g_scanner_cur_value(scanner);
279 if(token != G_TOKEN_IDENTIFIER) {
280 g_scanner_error(scanner, "CSS Error: style selector expected");
284 if( !strcmp(field, "buffer") )
285 current_tag = g_hash_table_lookup(glk_data->default_styles->text_buffer, value.v_identifier);
287 current_tag = g_hash_table_lookup(glk_data->default_styles->text_grid, value.v_identifier);
289 if(current_tag == NULL) {
290 g_scanner_error(scanner, "CSS Error: invalid style identifier");
294 if( !style_accept(scanner, '{') )
297 while( g_scanner_peek_next_token(scanner) != '}') {
298 if( !style_accept_style_hint(scanner, current_tag) )
302 if( !style_accept(scanner, '}') )
308 /* Internal function: parses a style hint */
310 style_accept_style_hint(GScanner *scanner, GtkTextTag *current_tag)
312 GTokenType token = g_scanner_get_next_token(scanner);
313 GTokenValue value = g_scanner_cur_value(scanner);
316 if(token != G_TOKEN_IDENTIFIER) {
317 g_scanner_error(scanner, "CSS Error: style hint expected");
321 hint = g_strdup(value.v_identifier);
323 if( !style_accept(scanner, ':') )
326 token = g_scanner_get_next_token(scanner);
327 value = g_scanner_cur_value(scanner);
329 if( !strcmp(hint, "font-family") ) {
330 if(token != G_TOKEN_STRING) {
331 g_scanner_error(scanner, "CSS Error: string expected");
334 g_object_set(current_tag, "family", value.v_string, "family-set", TRUE, NULL);
336 else if( !strcmp(hint, "font-weight") ) {
337 if(token != G_TOKEN_IDENTIFIER) {
338 g_scanner_error(scanner, "CSS Error: bold/normal expected");
342 if( !strcmp(value.v_identifier, "bold") )
343 g_object_set(current_tag, "weight", PANGO_WEIGHT_BOLD, "weight-set", TRUE, NULL);
344 else if( !strcmp(value.v_identifier, "normal") )
345 g_object_set(current_tag, "weight", PANGO_WEIGHT_NORMAL, "weight-set", TRUE, NULL);
347 g_scanner_error(scanner, "CSS Error: bold/normal expected");
351 else if( !strcmp(hint, "font-style") ) {
352 if(token != G_TOKEN_IDENTIFIER) {
353 g_scanner_error(scanner, "CSS Error: italic/normal expected");
357 if( !strcmp(value.v_identifier, "italic") )
358 g_object_set(current_tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
359 else if( !strcmp(value.v_identifier, "normal") )
360 g_object_set(current_tag, "style", PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
362 g_scanner_error(scanner, "CSS Error: italic/normal expected");
366 else if( !strcmp(hint, "font-size") ) {
367 if(token == G_TOKEN_INT)
368 g_object_set(current_tag, "size-points", (float)value.v_int, "size-set", TRUE, NULL);
369 else if(token == G_TOKEN_FLOAT)
370 g_object_set(current_tag, "size-points", value.v_float, "size-set", TRUE, NULL);
372 g_scanner_error(scanner, "CSS Error: integer or float expected");
376 else if( !strcmp(hint, "color") ) {
377 if(token != G_TOKEN_IDENTIFIER) {
378 g_scanner_error(scanner, "CSS Error: hex color expected");
382 g_object_set(current_tag, "foreground", value.v_identifier, "foreground-set", TRUE, NULL);
384 else if( !strcmp(hint, "background-color") ) {
385 if(token != G_TOKEN_IDENTIFIER) {
386 g_scanner_error(scanner, "CSS Error: hex color expected");
389 g_object_set(current_tag, "background", value.v_identifier, "background-set", TRUE, NULL);
391 else if( !strcmp(hint, "text-align") ) {
392 if(token != G_TOKEN_IDENTIFIER) {
393 g_scanner_error(scanner, "CSS Error: left/right/center expected");
397 if( !strcmp(value.v_identifier, "left") )
398 g_object_set(current_tag, "justification", GTK_JUSTIFY_LEFT, "justification-set", TRUE, NULL);
399 else if( !strcmp(value.v_identifier, "right") )
400 g_object_set(current_tag, "justification", GTK_JUSTIFY_RIGHT, "justification-set", TRUE, NULL);
401 else if( !strcmp(value.v_identifier, "center") )
402 g_object_set(current_tag, "justification", GTK_JUSTIFY_CENTER, "justification-set", TRUE, NULL);
404 g_scanner_error(scanner, "CSS Error: left/right/center expected");
408 else if( !strcmp(hint, "margin-left") ) {
409 if(token != G_TOKEN_INT) {
410 g_scanner_error(scanner, "CSS Error: integer expected");
413 g_object_set(current_tag, "left-margin", value.v_int, "left-margin-set", TRUE, NULL);
415 else if( !strcmp(hint, "margin-right") ) {
416 if(token != G_TOKEN_INT) {
417 g_scanner_error(scanner, "CSS Error: integer expected");
420 g_object_set(current_tag, "right-margin", value.v_int, "right-margin-set", TRUE, NULL);
422 else if( !strcmp(hint, "margin-top") ) {
423 if(token != G_TOKEN_INT) {
424 g_scanner_error(scanner, "CSS Error: integer expected");
427 g_object_set(current_tag, "pixels-above-lines", value.v_int, "pixels-above-lines-set", TRUE, NULL);
429 else if( !strcmp(hint, "margin-bottom") ) {
430 if(token != G_TOKEN_INT) {
431 g_scanner_error(scanner, "CSS Error: integer expected");
434 g_object_set(current_tag, "pixels-below-lines", value.v_int, "pixels-below-lines-set", TRUE, NULL);
438 g_scanner_error(scanner, "CSS Error: invalid style hint %s", hint);
442 if( !style_accept(scanner, ';') )
448 /* Internal function: parses a glk color to a #hex-value */
450 color_format(glui32 val, gchar *buffer)
452 g_return_if_fail(buffer != NULL);
454 sprintf(buffer, "#%02X%02X%02X",
455 ((val & 0xff0000) >> 16),
456 ((val & 0x00ff00) >> 8),
461 /* Internal function: parses a GdkColor to a glk color */
463 color_parse_gdk(GdkColor *color)
465 g_return_val_if_fail(color != NULL, 0);
466 return (glui32) color->pixel;
469 /* Internal function: changes a GTK tag to correspond with the given style. */
471 apply_stylehint_to_tag(GtkTextTag *tag, glui32 hint, glsi32 val)
473 g_return_if_fail(tag != NULL);
475 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
476 GObject *tag_object = G_OBJECT(tag);
477 gint reverse_color = 0;
479 /* FIXME where should we keep track of this?
480 g_object_get(tag, "reverse_color", &reverse_color, NULL);
486 case stylehint_Indentation:
487 g_object_set(tag_object, "left-margin", 5*val, "left-margin-set", TRUE, NULL);
488 g_object_set(tag_object, "right-margin", 5*val, "right-margin-set", TRUE, NULL);
491 case stylehint_ParaIndentation:
492 g_object_set(tag_object, "indent", 5*val, "indent-set", TRUE, NULL);
495 case stylehint_Justification:
497 case stylehint_just_LeftFlush: i = GTK_JUSTIFY_LEFT; break;
498 case stylehint_just_LeftRight: i = GTK_JUSTIFY_FILL; break;
499 case stylehint_just_Centered: i = GTK_JUSTIFY_CENTER; break;
500 case stylehint_just_RightFlush: i = GTK_JUSTIFY_RIGHT; break;
502 WARNING("Unknown justification");
503 i = GTK_JUSTIFY_LEFT;
505 g_object_set(tag_object, "justification", i, "justification-set", TRUE, NULL);
508 case stylehint_Weight:
510 case -1: i = PANGO_WEIGHT_LIGHT; break;
511 case 0: i = PANGO_WEIGHT_NORMAL; break;
512 case 1: i = PANGO_WEIGHT_BOLD; break;
513 default: WARNING("Unknown font weight");
515 g_object_set(tag_object, "weight", i, "weight-set", TRUE, NULL);
519 g_object_set(tag_object, "size", 14+(2*val), "size-set", TRUE, NULL);
522 case stylehint_Oblique:
523 g_object_set(tag_object, "style", val ? PANGO_STYLE_ITALIC : PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
526 case stylehint_Proportional:
527 g_object_set(tag_object, "font-desc", val ? glk_data->default_font_desc : glk_data->monospace_font_desc, NULL);
530 case stylehint_TextColor:
531 color_format(val, color);
534 g_object_set(tag_object, "foreground", color, "foreground-set", TRUE, NULL);
536 g_object_set(tag_object, "background", color, "background-set", TRUE, NULL);
540 case stylehint_BackColor:
541 color_format(val, color);
544 g_object_set(tag_object, "background", color, "background-set", TRUE, NULL);
546 g_object_set(tag_object, "foreground", color, "background-set", TRUE, NULL);
550 case stylehint_ReverseColor:
551 if(reverse_color != val) {
552 /* Flip the fore- and background colors */
553 GdkColor* foreground_color;
554 GdkColor* background_color;
555 gint f_set, b_set = 0;
556 g_object_get(tag_object, "foreground-set", &f_set, "background-set", &b_set, NULL);
559 g_object_get(tag_object, "foreground-gdk", &foreground_color, NULL);
561 g_object_get(tag_object, "background-gdk", &background_color, NULL);
564 g_object_set(tag_object, "foreground-gdk", background_color, NULL);
566 g_object_set(tag_object, "foreground", "#ffffff", NULL);
569 g_object_set(tag_object, "background-gdk", foreground_color, NULL);
571 g_object_set(tag_object, "background", "#000000", NULL);
576 WARNING("Unknown style hint");
579 /*Internal function: queries a text tag for the value of a given style hint */
581 query_tag(GtkTextTag *tag, glui32 hint)
587 g_return_val_if_fail(tag != NULL, 0);
589 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
592 case stylehint_Indentation:
593 g_object_get(tag, "left_margin", &intval, NULL);
597 case stylehint_ParaIndentation:
598 g_object_get(tag, "indent", &intval, NULL);
602 case stylehint_Justification:
603 g_object_get(tag, "justification", &intval, NULL);
605 case GTK_JUSTIFY_LEFT: return stylehint_just_LeftFlush; break;
606 case GTK_JUSTIFY_FILL: return stylehint_just_LeftRight; break;
607 case GTK_JUSTIFY_CENTER: return stylehint_just_Centered; break;
608 case GTK_JUSTIFY_RIGHT: return stylehint_just_RightFlush; break;
610 WARNING("Unknown justification");
611 return stylehint_just_LeftFlush;
615 case stylehint_Weight:
616 g_object_get(tag, "weight", &intval, NULL);
618 case PANGO_WEIGHT_LIGHT: return -1; break;
619 case PANGO_WEIGHT_NORMAL: return 0; break;
620 case PANGO_WEIGHT_BOLD: return 1; break;
621 default: WARNING("Unknown font weight"); return 0;
626 g_object_get(tag, "size", &intval, NULL);
627 return (intval/2)-14;
630 case stylehint_Oblique:
631 g_object_get(tag, "style", &intval , NULL);
632 return intval == PANGO_STYLE_ITALIC ? 1 : 0;
635 case stylehint_Proportional:
636 g_object_get(tag, "font-desc", &objval, NULL);
637 return objval == (GObject *)glk_data->monospace_font_desc ? 0 : 1;
640 case stylehint_TextColor:
641 g_object_get(tag, "foreground-gdk", &colval, NULL);
642 return color_parse_gdk(colval);
645 case stylehint_BackColor:
646 g_object_get(tag, "background-gdk", &colval, NULL);
647 return color_parse_gdk(colval);
650 case stylehint_ReverseColor:
651 /* FIXME: implement this */
656 WARNING("Unknown style hint");
664 * @wintype: The window type to set a style hint on, or %wintype_AllTypes.
665 * @styl: The style to set a hint for.
666 * @hint: The type of style hint, one of the <code>stylehint_</code> constants.
667 * @val: The style hint. The meaning of this depends on @hint.
669 * Sets a hint about the appearance of one style for a particular type of
670 * window. You can also set wintype to %wintype_AllTypes, which sets a hint for
671 * all types of window.
673 * There is no equivalent constant to set a hint for all styles of a single
678 glk_stylehint_set(glui32 wintype, glui32 styl, glui32 hint, glsi32 val)
680 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
682 if( G_UNLIKELY(!glk_data->style_initialized) ) {
686 GtkTextTag *to_change;
687 if(wintype == wintype_TextBuffer || wintype == wintype_AllTypes) {
688 to_change = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
689 apply_stylehint_to_tag(to_change, hint, val);
692 if(wintype == wintype_TextGrid || wintype == wintype_AllTypes) {
693 to_change = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
694 apply_stylehint_to_tag(to_change, hint, val);
699 * glk_stylehint_clear:
700 * @wintype: The window type to set a style hint on, or %wintype_AllTypes.
701 * @styl: The style to set a hint for.
702 * @hint: The type of style hint, one of the <code>stylehint_</code> constants.
704 * Resets a hint about the appearance of one style for a particular type of
705 * window to it's default value. You can also set wintype to %wintype_AllTypes, which resets a hint for
706 * all types of window.
708 * There is no equivalent constant to reset a hint for all styles of a single
713 glk_stylehint_clear(glui32 wintype, glui32 styl, glui32 hint)
715 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
719 case wintype_TextBuffer:
720 tag = g_hash_table_lookup( glk_data->default_styles->text_buffer, get_tag_name(styl) );
721 glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
723 case wintype_TextGrid:
724 tag = g_hash_table_lookup( glk_data->default_styles->text_grid, get_tag_name(styl) );
725 glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
732 * glk_style_distinguish:
733 * @win: The window in which the styles are to be distinguished.
734 * @styl1: The first style to be distinguished from the second style.
735 * @styl2: The second styel to be distinguished from the first style.
737 * Returns: TRUE if the two styles are visually distinguishable in the given window.
738 * If they are not, it returns FALSE.
741 glk_style_distinguish(winid_t win, glui32 styl1, glui32 styl2)
743 return styl1 != styl2;
748 * @win: The window from which to take the style.
749 * @styl: The style to perform the measurement on.
750 * @hint: The stylehint to measure.
751 * @result: Address to write the result to.
753 * This function can be used to query the current value of a particular style hint.
754 * Returns: TRUE upon successul retrievel, otherwise FALSE.
757 glk_style_measure(winid_t win, glui32 styl, glui32 hint, glui32 *result)
759 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
763 case wintype_TextBuffer:
764 tag = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
765 *result = query_tag(tag, hint);
767 case wintype_TextGrid:
768 tag = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
769 *result = query_tag(tag, hint);