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);
156 /* Copy the reverse_color attribute, that was added manually */
157 g_object_set_data( G_OBJECT(copy), "reverse_color", g_object_get_data(G_OBJECT(tag), "reverse_color") );
162 /* Internal function that reads the default styles from a CSS file */
166 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
167 GHashTable *default_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
168 GHashTable *default_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
169 GHashTable *current_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
170 GHashTable *current_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
173 /* Create the CSS file scanner */
174 GScanner *scanner = g_scanner_new(NULL);
176 int f = open(glk_data->css_file, O_RDONLY);
177 g_return_if_fail(f != -1);
178 g_scanner_input_file(scanner, f);
179 scanner->input_name = glk_data->css_file;
180 scanner->config->cset_identifier_first = G_CSET_a_2_z G_CSET_A_2_Z "#";
181 scanner->config->cset_identifier_nth = G_CSET_a_2_z G_CSET_A_2_Z "-_" G_CSET_DIGITS;
182 scanner->config->symbol_2_token = TRUE;
183 scanner->config->cpair_comment_single = NULL;
184 scanner->config->scan_float = FALSE;
186 /* Initialise the default styles */
187 g_hash_table_insert(default_text_grid_styles, "normal", gtk_text_tag_new("normal"));
189 tag = gtk_text_tag_new("emphasized");
190 g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
191 g_hash_table_insert(default_text_grid_styles, "emphasized", tag);
193 tag = gtk_text_tag_new("preformatted");
194 g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
195 g_hash_table_insert(default_text_grid_styles, "preformatted", tag);
197 tag = gtk_text_tag_new("header");
198 g_object_set(tag, "size-points", 18.0, "weight", PANGO_WEIGHT_BOLD, NULL);
199 g_hash_table_insert(default_text_grid_styles, "header", tag);
201 tag = gtk_text_tag_new("subheader");
202 g_object_set(tag, "size-points", 14.0, "weight", PANGO_WEIGHT_BOLD, NULL);
203 g_hash_table_insert(default_text_grid_styles, "subheader", tag);
205 tag = gtk_text_tag_new("alert");
206 g_object_set(tag, "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
207 g_hash_table_insert(default_text_grid_styles, "alert", tag);
209 tag = gtk_text_tag_new("note");
210 g_object_set(tag, "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
211 g_hash_table_insert(default_text_grid_styles, "note", tag);
213 tag = gtk_text_tag_new("block-quote");
214 g_object_set(tag, "justification", GTK_JUSTIFY_CENTER, "style", PANGO_STYLE_ITALIC, NULL);
215 g_hash_table_insert(default_text_grid_styles, "block-quote", tag);
217 g_hash_table_insert(default_text_grid_styles, "input", gtk_text_tag_new("input"));
218 g_hash_table_insert(default_text_grid_styles, "user1", gtk_text_tag_new("user1"));
219 g_hash_table_insert(default_text_grid_styles, "user2", gtk_text_tag_new("user2"));
221 g_hash_table_foreach(default_text_grid_styles, style_table_copy, default_text_buffer_styles);
222 glk_data->default_styles->text_grid = default_text_grid_styles;
223 glk_data->default_styles->text_buffer = default_text_buffer_styles;
225 /* Run the scanner over the CSS file, overriding defaults */
226 while( g_scanner_peek_next_token(scanner) != G_TOKEN_EOF) {
227 if( !style_accept_style_selector(scanner) )
231 /* Set the current style to a copy of the default style */
232 g_hash_table_foreach(default_text_grid_styles, style_table_copy, current_text_grid_styles);
233 g_hash_table_foreach(default_text_buffer_styles, style_table_copy, current_text_buffer_styles);
234 glk_data->current_styles->text_grid = current_text_grid_styles;
235 glk_data->current_styles->text_buffer = current_text_buffer_styles;
237 g_scanner_destroy(scanner);
239 glk_data->style_initialized = TRUE;
242 /* Internal function: parses a token */
244 style_accept(GScanner *scanner, GTokenType token)
246 GTokenType next = g_scanner_get_next_token(scanner);
248 g_scanner_unexp_token(scanner, token, NULL, NULL, NULL, "CSS Error", 1);
255 /* Internal function: parses a style selector */
257 style_accept_style_selector(GScanner *scanner)
259 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
261 GtkTextTag *current_tag;
263 GTokenType token = g_scanner_get_next_token(scanner);
264 GTokenValue value = g_scanner_cur_value(scanner);
267 token != G_TOKEN_IDENTIFIER ||
268 ( strcmp(value.v_identifier, "buffer") && strcmp(value.v_identifier, "grid") )
270 g_scanner_error(scanner, "CSS Error: buffer/grid expected");
274 field = g_strdup(value.v_identifier);
276 if( !style_accept(scanner, '.') )
279 token = g_scanner_get_next_token(scanner);
280 value = g_scanner_cur_value(scanner);
282 if(token != G_TOKEN_IDENTIFIER) {
283 g_scanner_error(scanner, "CSS Error: style selector expected");
287 if( !strcmp(field, "buffer") )
288 current_tag = g_hash_table_lookup(glk_data->default_styles->text_buffer, value.v_identifier);
290 current_tag = g_hash_table_lookup(glk_data->default_styles->text_grid, value.v_identifier);
292 if(current_tag == NULL) {
293 g_scanner_error(scanner, "CSS Error: invalid style identifier");
297 if( !style_accept(scanner, '{') )
300 while( g_scanner_peek_next_token(scanner) != '}') {
301 if( !style_accept_style_hint(scanner, current_tag) )
305 if( !style_accept(scanner, '}') )
311 /* Internal function: parses a style hint */
313 style_accept_style_hint(GScanner *scanner, GtkTextTag *current_tag)
315 GTokenType token = g_scanner_get_next_token(scanner);
316 GTokenValue value = g_scanner_cur_value(scanner);
319 if(token != G_TOKEN_IDENTIFIER) {
320 g_scanner_error(scanner, "CSS Error: style hint expected");
324 hint = g_strdup(value.v_identifier);
326 if( !style_accept(scanner, ':') )
329 token = g_scanner_get_next_token(scanner);
330 value = g_scanner_cur_value(scanner);
332 if( !strcmp(hint, "font-family") ) {
333 if(token != G_TOKEN_STRING) {
334 g_scanner_error(scanner, "CSS Error: string expected");
337 g_object_set(current_tag, "family", value.v_string, "family-set", TRUE, NULL);
339 else if( !strcmp(hint, "font-weight") ) {
340 if(token != G_TOKEN_IDENTIFIER) {
341 g_scanner_error(scanner, "CSS Error: bold/normal expected");
345 if( !strcmp(value.v_identifier, "bold") )
346 g_object_set(current_tag, "weight", PANGO_WEIGHT_BOLD, "weight-set", TRUE, NULL);
347 else if( !strcmp(value.v_identifier, "normal") )
348 g_object_set(current_tag, "weight", PANGO_WEIGHT_NORMAL, "weight-set", TRUE, NULL);
350 g_scanner_error(scanner, "CSS Error: bold/normal expected");
354 else if( !strcmp(hint, "font-style") ) {
355 if(token != G_TOKEN_IDENTIFIER) {
356 g_scanner_error(scanner, "CSS Error: italic/normal expected");
360 if( !strcmp(value.v_identifier, "italic") )
361 g_object_set(current_tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
362 else if( !strcmp(value.v_identifier, "normal") )
363 g_object_set(current_tag, "style", PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
365 g_scanner_error(scanner, "CSS Error: italic/normal expected");
369 else if( !strcmp(hint, "font-size") ) {
370 if(token == G_TOKEN_INT)
371 g_object_set(current_tag, "size-points", (float)value.v_int, "size-set", TRUE, NULL);
372 else if(token == G_TOKEN_FLOAT)
373 g_object_set(current_tag, "size-points", value.v_float, "size-set", TRUE, NULL);
375 g_scanner_error(scanner, "CSS Error: integer or float expected");
379 else if( !strcmp(hint, "color") ) {
380 if(token != G_TOKEN_IDENTIFIER) {
381 g_scanner_error(scanner, "CSS Error: hex color expected");
385 g_object_set(current_tag, "foreground", value.v_identifier, "foreground-set", TRUE, NULL);
387 else if( !strcmp(hint, "background-color") ) {
388 if(token != G_TOKEN_IDENTIFIER) {
389 g_scanner_error(scanner, "CSS Error: hex color expected");
392 g_object_set(current_tag, "background", value.v_identifier, "background-set", TRUE, NULL);
394 else if( !strcmp(hint, "text-align") ) {
395 if(token != G_TOKEN_IDENTIFIER) {
396 g_scanner_error(scanner, "CSS Error: left/right/center expected");
400 if( !strcmp(value.v_identifier, "left") )
401 g_object_set(current_tag, "justification", GTK_JUSTIFY_LEFT, "justification-set", TRUE, NULL);
402 else if( !strcmp(value.v_identifier, "right") )
403 g_object_set(current_tag, "justification", GTK_JUSTIFY_RIGHT, "justification-set", TRUE, NULL);
404 else if( !strcmp(value.v_identifier, "center") )
405 g_object_set(current_tag, "justification", GTK_JUSTIFY_CENTER, "justification-set", TRUE, NULL);
407 g_scanner_error(scanner, "CSS Error: left/right/center expected");
411 else if( !strcmp(hint, "margin-left") ) {
412 if(token != G_TOKEN_INT) {
413 g_scanner_error(scanner, "CSS Error: integer expected");
416 g_object_set(current_tag, "left-margin", value.v_int, "left-margin-set", TRUE, NULL);
418 else if( !strcmp(hint, "margin-right") ) {
419 if(token != G_TOKEN_INT) {
420 g_scanner_error(scanner, "CSS Error: integer expected");
423 g_object_set(current_tag, "right-margin", value.v_int, "right-margin-set", TRUE, NULL);
425 else if( !strcmp(hint, "margin-top") ) {
426 if(token != G_TOKEN_INT) {
427 g_scanner_error(scanner, "CSS Error: integer expected");
430 g_object_set(current_tag, "pixels-above-lines", value.v_int, "pixels-above-lines-set", TRUE, NULL);
432 else if( !strcmp(hint, "margin-bottom") ) {
433 if(token != G_TOKEN_INT) {
434 g_scanner_error(scanner, "CSS Error: integer expected");
437 g_object_set(current_tag, "pixels-below-lines", value.v_int, "pixels-below-lines-set", TRUE, NULL);
441 g_scanner_error(scanner, "CSS Error: invalid style hint %s", hint);
445 if( !style_accept(scanner, ';') )
451 /* Internal function: parses a glk color to a #hex-value */
453 color_format(glui32 val, gchar *buffer)
455 g_return_if_fail(buffer != NULL);
457 sprintf(buffer, "#%02X%02X%02X",
458 ((val & 0xff0000) >> 16),
459 ((val & 0x00ff00) >> 8),
464 /* Internal function: parses a GdkColor to a glk color */
466 color_parse_gdk(GdkColor *color)
468 g_return_val_if_fail(color != NULL, 0);
469 return (glui32) color->pixel;
472 /* Internal function: changes a GTK tag to correspond with the given style. */
474 apply_stylehint_to_tag(GtkTextTag *tag, glui32 hint, glsi32 val)
476 g_return_if_fail(tag != NULL);
478 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
479 GObject *tag_object = G_OBJECT(tag);
481 gint reverse_color = GPOINTER_TO_INT( g_object_get_data(tag_object, "reverse-color") );
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);
573 g_object_set_data( tag_object, "reverse-color", GINT_TO_POINTER(val != 0) );
578 WARNING("Unknown style hint");
581 /*Internal function: queries a text tag for the value of a given style hint */
583 query_tag(GtkTextTag *tag, glui32 hint)
589 g_return_val_if_fail(tag != NULL, 0);
591 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
594 case stylehint_Indentation:
595 g_object_get(tag, "left_margin", &intval, NULL);
599 case stylehint_ParaIndentation:
600 g_object_get(tag, "indent", &intval, NULL);
604 case stylehint_Justification:
605 g_object_get(tag, "justification", &intval, NULL);
607 case GTK_JUSTIFY_LEFT: return stylehint_just_LeftFlush; break;
608 case GTK_JUSTIFY_FILL: return stylehint_just_LeftRight; break;
609 case GTK_JUSTIFY_CENTER: return stylehint_just_Centered; break;
610 case GTK_JUSTIFY_RIGHT: return stylehint_just_RightFlush; break;
612 WARNING("Unknown justification");
613 return stylehint_just_LeftFlush;
617 case stylehint_Weight:
618 g_object_get(tag, "weight", &intval, NULL);
620 case PANGO_WEIGHT_LIGHT: return -1; break;
621 case PANGO_WEIGHT_NORMAL: return 0; break;
622 case PANGO_WEIGHT_BOLD: return 1; break;
623 default: WARNING("Unknown font weight"); return 0;
628 g_object_get(tag, "size", &intval, NULL);
629 return (intval/2)-14;
632 case stylehint_Oblique:
633 g_object_get(tag, "style", &intval , NULL);
634 return intval == PANGO_STYLE_ITALIC ? 1 : 0;
637 case stylehint_Proportional:
638 g_object_get(tag, "font-desc", &objval, NULL);
639 return objval == (GObject *)glk_data->monospace_font_desc ? 0 : 1;
642 case stylehint_TextColor:
643 g_object_get(tag, "foreground-gdk", &colval, NULL);
644 return color_parse_gdk(colval);
647 case stylehint_BackColor:
648 g_object_get(tag, "background-gdk", &colval, NULL);
649 return color_parse_gdk(colval);
652 case stylehint_ReverseColor:
653 return GPOINTER_TO_INT( g_object_get_data(G_OBJECT(tag), "reverse_color") );
657 WARNING("Unknown style hint");
665 * @wintype: The window type to set a style hint on, or %wintype_AllTypes.
666 * @styl: The style to set a hint for.
667 * @hint: The type of style hint, one of the <code>stylehint_</code> constants.
668 * @val: The style hint. The meaning of this depends on @hint.
670 * Sets a hint about the appearance of one style for a particular type of
671 * window. You can also set wintype to %wintype_AllTypes, which sets a hint for
672 * all types of window.
674 * There is no equivalent constant to set a hint for all styles of a single
679 glk_stylehint_set(glui32 wintype, glui32 styl, glui32 hint, glsi32 val)
681 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
683 if( G_UNLIKELY(!glk_data->style_initialized) ) {
687 GtkTextTag *to_change;
688 if(wintype == wintype_TextBuffer || wintype == wintype_AllTypes) {
689 to_change = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
690 apply_stylehint_to_tag(to_change, hint, val);
693 if(wintype == wintype_TextGrid || wintype == wintype_AllTypes) {
694 to_change = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
695 apply_stylehint_to_tag(to_change, hint, val);
700 * glk_stylehint_clear:
701 * @wintype: The window type to set a style hint on, or %wintype_AllTypes.
702 * @styl: The style to set a hint for.
703 * @hint: The type of style hint, one of the <code>stylehint_</code> constants.
705 * Resets a hint about the appearance of one style for a particular type of
706 * window to it's default value. You can also set wintype to %wintype_AllTypes, which resets a hint for
707 * all types of window.
709 * There is no equivalent constant to reset a hint for all styles of a single
714 glk_stylehint_clear(glui32 wintype, glui32 styl, glui32 hint)
716 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
720 case wintype_TextBuffer:
721 tag = g_hash_table_lookup( glk_data->default_styles->text_buffer, get_tag_name(styl) );
722 glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
724 case wintype_TextGrid:
725 tag = g_hash_table_lookup( glk_data->default_styles->text_grid, get_tag_name(styl) );
726 glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
733 * glk_style_distinguish:
734 * @win: The window in which the styles are to be distinguished.
735 * @styl1: The first style to be distinguished from the second style.
736 * @styl2: The second styel to be distinguished from the first style.
738 * Returns: TRUE if the two styles are visually distinguishable in the given window.
739 * If they are not, it returns FALSE.
742 glk_style_distinguish(winid_t win, glui32 styl1, glui32 styl2)
744 return styl1 != styl2;
749 * @win: The window from which to take the style.
750 * @styl: The style to perform the measurement on.
751 * @hint: The stylehint to measure.
752 * @result: Address to write the result to.
754 * This function can be used to query the current value of a particular style hint.
755 * Returns: TRUE upon successul retrievel, otherwise FALSE.
758 glk_style_measure(winid_t win, glui32 styl, glui32 hint, glui32 *result)
760 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
764 case wintype_TextBuffer:
765 tag = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
766 *result = query_tag(tag, hint);
768 case wintype_TextGrid:
769 tag = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
770 *result = query_tag(tag, hint);