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) ) {
88 /* Copy the current text tags to the textbuffer's tag table */
89 g_hash_table_foreach(glk_data->current_styles->text_buffer, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
92 /* Internal function: call this to initialize the default styles to a textgrid. */
94 style_init_textgrid(GtkTextBuffer *buffer)
96 g_return_if_fail(buffer != NULL);
98 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
99 if( G_UNLIKELY(!glk_data->style_initialized) ) {
103 /* Copy the current text tags to the textgrid's tag table */
104 g_hash_table_foreach(glk_data->current_styles->text_grid, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
107 /* Internal function used to iterate over the default text tag table, applying them to a textbuffer */
109 style_add_tag_to_textbuffer(gpointer key, gpointer tag, gpointer tag_table)
111 gtk_text_tag_table_add( tag_table, gtk_text_tag_copy(tag) );
114 /* Internal function used to iterate over a style table, copying it */
116 style_table_copy(gpointer key, gpointer tag, gpointer target_table)
118 g_return_if_fail(key != NULL);
119 g_return_if_fail(tag != NULL);
120 g_return_if_fail(target_table != NULL);
122 g_hash_table_insert(target_table, key, gtk_text_tag_copy( GTK_TEXT_TAG(tag) ));
125 /* Internal function that copies a text tag */
127 gtk_text_tag_copy(GtkTextTag *tag)
131 g_return_val_if_fail(tag != NULL, NULL);
133 copy = gtk_text_tag_new(tag->name);
134 gtk_text_attributes_copy_values(tag->values, copy->values);
136 #define _COPY_FLAG(flag) copy->flag = tag->flag
137 _COPY_FLAG (bg_color_set);
138 _COPY_FLAG (bg_color_set);
139 _COPY_FLAG (bg_stipple_set);
140 _COPY_FLAG (fg_color_set);
141 _COPY_FLAG (fg_stipple_set);
142 _COPY_FLAG (justification_set);
143 _COPY_FLAG (left_margin_set);
144 _COPY_FLAG (indent_set);
145 _COPY_FLAG (rise_set);
146 _COPY_FLAG (strikethrough_set);
147 _COPY_FLAG (right_margin_set);
148 _COPY_FLAG (pixels_above_lines_set);
149 _COPY_FLAG (pixels_below_lines_set);
150 _COPY_FLAG (pixels_inside_wrap_set);
151 _COPY_FLAG (tabs_set);
152 _COPY_FLAG (underline_set);
153 _COPY_FLAG (wrap_mode_set);
154 _COPY_FLAG (bg_full_height_set);
155 _COPY_FLAG (invisible_set);
156 _COPY_FLAG (editable_set);
157 _COPY_FLAG (language_set);
160 /* Copy the reverse_color attribute, that was added manually */
161 g_object_set_data( G_OBJECT(copy), "reverse_color", g_object_get_data(G_OBJECT(tag), "reverse_color") );
166 /* Internal function that reads the default styles from a CSS file */
170 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
171 GHashTable *default_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
172 GHashTable *default_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
173 GHashTable *current_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
174 GHashTable *current_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
177 /* Create the CSS file scanner */
178 GScanner *scanner = g_scanner_new(NULL);
180 int f = open(glk_data->css_file, O_RDONLY);
181 g_return_if_fail(f != -1);
182 g_scanner_input_file(scanner, f);
183 scanner->input_name = glk_data->css_file;
184 scanner->config->cset_identifier_first = G_CSET_a_2_z G_CSET_A_2_Z "#";
185 scanner->config->cset_identifier_nth = G_CSET_a_2_z G_CSET_A_2_Z "-_" G_CSET_DIGITS;
186 scanner->config->symbol_2_token = TRUE;
187 scanner->config->cpair_comment_single = NULL;
188 scanner->config->scan_float = FALSE;
190 /* Initialise the default styles for a text grid */
191 tag = gtk_text_tag_new("normal");
192 g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
193 g_hash_table_insert(default_text_grid_styles, "normal", tag);
195 tag = gtk_text_tag_new("emphasized");
196 g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
197 g_hash_table_insert(default_text_grid_styles, "emphasized", tag);
199 tag = gtk_text_tag_new("preformatted");
200 g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
201 g_hash_table_insert(default_text_grid_styles, "preformatted", tag);
203 tag = gtk_text_tag_new("header");
204 g_object_set(tag, "weight", PANGO_WEIGHT_BOLD, NULL);
205 g_hash_table_insert(default_text_grid_styles, "header", tag);
207 tag = gtk_text_tag_new("subheader");
208 g_object_set(tag, "weight", PANGO_WEIGHT_BOLD, NULL);
209 g_hash_table_insert(default_text_grid_styles, "subheader", tag);
211 tag = gtk_text_tag_new("alert");
212 g_object_set(tag, "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
213 g_hash_table_insert(default_text_grid_styles, "alert", tag);
215 tag = gtk_text_tag_new("note");
216 g_object_set(tag, "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
217 g_hash_table_insert(default_text_grid_styles, "note", tag);
219 tag = gtk_text_tag_new("block-quote");
220 g_object_set(tag, "style", PANGO_STYLE_ITALIC, NULL);
221 g_hash_table_insert(default_text_grid_styles, "block-quote", tag);
223 g_hash_table_insert(default_text_grid_styles, "input", gtk_text_tag_new("input"));
224 g_hash_table_insert(default_text_grid_styles, "user1", gtk_text_tag_new("user1"));
225 g_hash_table_insert(default_text_grid_styles, "user2", gtk_text_tag_new("user2"));
227 /* Tags for the textbuffer */
228 tag = gtk_text_tag_new("normal");
229 g_object_set(tag, "font-desc", glk_data->default_font_desc, NULL);
230 g_hash_table_insert(default_text_buffer_styles, "normal", tag);
232 tag = gtk_text_tag_new("emphasized");
233 g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
234 g_hash_table_insert(default_text_buffer_styles, "emphasized", tag);
236 tag = gtk_text_tag_new("preformatted");
237 g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
238 g_hash_table_insert(default_text_buffer_styles, "preformatted", tag);
240 tag = gtk_text_tag_new("header");
241 g_object_set(tag, "size-points", 18.0, "weight", PANGO_WEIGHT_BOLD, NULL);
242 g_hash_table_insert(default_text_buffer_styles, "header", tag);
244 tag = gtk_text_tag_new("subheader");
245 g_object_set(tag, "size-points", 14.0, "weight", PANGO_WEIGHT_BOLD, NULL);
246 g_hash_table_insert(default_text_buffer_styles, "subheader", tag);
248 tag = gtk_text_tag_new("alert");
249 g_object_set(tag, "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
250 g_hash_table_insert(default_text_buffer_styles, "alert", tag);
252 tag = gtk_text_tag_new("note");
253 g_object_set(tag, "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
254 g_hash_table_insert(default_text_buffer_styles, "note", tag);
256 tag = gtk_text_tag_new("block-quote");
257 g_object_set(tag, "justification", GTK_JUSTIFY_CENTER, "style", PANGO_STYLE_ITALIC, NULL);
258 g_hash_table_insert(default_text_buffer_styles, "block-quote", tag);
260 g_hash_table_insert(default_text_buffer_styles, "input", gtk_text_tag_new("input"));
261 g_hash_table_insert(default_text_buffer_styles, "user1", gtk_text_tag_new("user1"));
262 g_hash_table_insert(default_text_buffer_styles, "user2", gtk_text_tag_new("user2"));
264 glk_data->default_styles->text_grid = default_text_grid_styles;
265 glk_data->default_styles->text_buffer = default_text_buffer_styles;
267 /* Run the scanner over the CSS file, overriding defaults */
268 while( g_scanner_peek_next_token(scanner) != G_TOKEN_EOF) {
269 if( !style_accept_style_selector(scanner) )
273 /* Set the current style to a copy of the default style */
274 g_hash_table_foreach(default_text_grid_styles, style_table_copy, current_text_grid_styles);
275 g_hash_table_foreach(default_text_buffer_styles, style_table_copy, current_text_buffer_styles);
276 glk_data->current_styles->text_grid = current_text_grid_styles;
277 glk_data->current_styles->text_buffer = current_text_buffer_styles;
279 g_scanner_destroy(scanner);
281 glk_data->style_initialized = TRUE;
284 /* Internal function: parses a token */
286 style_accept(GScanner *scanner, GTokenType token)
288 GTokenType next = g_scanner_get_next_token(scanner);
290 g_scanner_unexp_token(scanner, token, NULL, NULL, NULL, "CSS Error", 1);
297 /* Internal function: parses a style selector */
299 style_accept_style_selector(GScanner *scanner)
301 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
303 GtkTextTag *current_tag;
305 GTokenType token = g_scanner_get_next_token(scanner);
306 GTokenValue value = g_scanner_cur_value(scanner);
309 token != G_TOKEN_IDENTIFIER ||
310 ( strcmp(value.v_identifier, "buffer") && strcmp(value.v_identifier, "grid") )
312 g_scanner_error(scanner, "CSS Error: buffer/grid expected");
316 field = g_strdup(value.v_identifier);
318 if( !style_accept(scanner, '.') )
321 token = g_scanner_get_next_token(scanner);
322 value = g_scanner_cur_value(scanner);
324 if(token != G_TOKEN_IDENTIFIER) {
325 g_scanner_error(scanner, "CSS Error: style selector expected");
329 if( !strcmp(field, "buffer") )
330 current_tag = g_hash_table_lookup(glk_data->default_styles->text_buffer, value.v_identifier);
332 current_tag = g_hash_table_lookup(glk_data->default_styles->text_grid, value.v_identifier);
334 if(current_tag == NULL) {
335 g_scanner_error(scanner, "CSS Error: invalid style identifier");
339 if( !style_accept(scanner, '{') )
342 while( g_scanner_peek_next_token(scanner) != '}') {
343 if( !style_accept_style_hint(scanner, current_tag) )
347 if( !style_accept(scanner, '}') )
353 /* Internal function: parses a style hint */
355 style_accept_style_hint(GScanner *scanner, GtkTextTag *current_tag)
357 GTokenType token = g_scanner_get_next_token(scanner);
358 GTokenValue value = g_scanner_cur_value(scanner);
361 if(token != G_TOKEN_IDENTIFIER) {
362 g_scanner_error(scanner, "CSS Error: style hint expected");
366 hint = g_strdup(value.v_identifier);
368 if( !style_accept(scanner, ':') )
371 token = g_scanner_get_next_token(scanner);
372 value = g_scanner_cur_value(scanner);
374 if( !strcmp(hint, "font-family") ) {
375 if(token != G_TOKEN_STRING) {
376 g_scanner_error(scanner, "CSS Error: string expected");
379 g_object_set(current_tag, "family", value.v_string, "family-set", TRUE, NULL);
381 else if( !strcmp(hint, "font-weight") ) {
382 if(token != G_TOKEN_IDENTIFIER) {
383 g_scanner_error(scanner, "CSS Error: bold/normal expected");
387 if( !strcmp(value.v_identifier, "bold") )
388 g_object_set(current_tag, "weight", PANGO_WEIGHT_BOLD, "weight-set", TRUE, NULL);
389 else if( !strcmp(value.v_identifier, "normal") )
390 g_object_set(current_tag, "weight", PANGO_WEIGHT_NORMAL, "weight-set", TRUE, NULL);
392 g_scanner_error(scanner, "CSS Error: bold/normal expected");
396 else if( !strcmp(hint, "font-style") ) {
397 if(token != G_TOKEN_IDENTIFIER) {
398 g_scanner_error(scanner, "CSS Error: italic/normal expected");
402 if( !strcmp(value.v_identifier, "italic") )
403 g_object_set(current_tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
404 else if( !strcmp(value.v_identifier, "normal") )
405 g_object_set(current_tag, "style", PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
407 g_scanner_error(scanner, "CSS Error: italic/normal expected");
411 else if( !strcmp(hint, "font-size") ) {
412 if(token == G_TOKEN_INT)
413 g_object_set(current_tag, "size-points", (float)value.v_int, "size-set", TRUE, NULL);
414 else if(token == G_TOKEN_FLOAT)
415 g_object_set(current_tag, "size-points", value.v_float, "size-set", TRUE, NULL);
417 g_scanner_error(scanner, "CSS Error: integer or float expected");
421 else if( !strcmp(hint, "color") ) {
422 if(token != G_TOKEN_IDENTIFIER) {
423 g_scanner_error(scanner, "CSS Error: hex color expected");
427 g_object_set(current_tag, "foreground", value.v_identifier, "foreground-set", TRUE, NULL);
429 else if( !strcmp(hint, "background-color") ) {
430 if(token != G_TOKEN_IDENTIFIER) {
431 g_scanner_error(scanner, "CSS Error: hex color expected");
434 g_object_set(current_tag, "background", value.v_identifier, "background-set", TRUE, NULL);
436 else if( !strcmp(hint, "text-align") ) {
437 if(token != G_TOKEN_IDENTIFIER) {
438 g_scanner_error(scanner, "CSS Error: left/right/center expected");
442 if( !strcmp(value.v_identifier, "left") )
443 g_object_set(current_tag, "justification", GTK_JUSTIFY_LEFT, "justification-set", TRUE, NULL);
444 else if( !strcmp(value.v_identifier, "right") )
445 g_object_set(current_tag, "justification", GTK_JUSTIFY_RIGHT, "justification-set", TRUE, NULL);
446 else if( !strcmp(value.v_identifier, "center") )
447 g_object_set(current_tag, "justification", GTK_JUSTIFY_CENTER, "justification-set", TRUE, NULL);
449 g_scanner_error(scanner, "CSS Error: left/right/center expected");
453 else if( !strcmp(hint, "margin-left") ) {
454 if(token != G_TOKEN_INT) {
455 g_scanner_error(scanner, "CSS Error: integer expected");
458 g_object_set(current_tag, "left-margin", value.v_int, "left-margin-set", TRUE, NULL);
460 else if( !strcmp(hint, "margin-right") ) {
461 if(token != G_TOKEN_INT) {
462 g_scanner_error(scanner, "CSS Error: integer expected");
465 g_object_set(current_tag, "right-margin", value.v_int, "right-margin-set", TRUE, NULL);
467 else if( !strcmp(hint, "margin-top") ) {
468 if(token != G_TOKEN_INT) {
469 g_scanner_error(scanner, "CSS Error: integer expected");
472 g_object_set(current_tag, "pixels-above-lines", value.v_int, "pixels-above-lines-set", TRUE, NULL);
474 else if( !strcmp(hint, "margin-bottom") ) {
475 if(token != G_TOKEN_INT) {
476 g_scanner_error(scanner, "CSS Error: integer expected");
479 g_object_set(current_tag, "pixels-below-lines", value.v_int, "pixels-below-lines-set", TRUE, NULL);
483 g_scanner_error(scanner, "CSS Error: invalid style hint %s", hint);
487 if( !style_accept(scanner, ';') )
493 /* Internal function: parses a glk color to a #hex-value */
495 color_format(glui32 val, gchar *buffer)
497 g_return_if_fail(buffer != NULL);
499 sprintf(buffer, "#%02X%02X%02X",
500 ((val & 0xff0000) >> 16),
501 ((val & 0x00ff00) >> 8),
506 /* Internal function: parses a GdkColor to a glk color */
508 color_parse_gdk(GdkColor *color)
510 g_return_val_if_fail(color != NULL, 0);
511 return (glui32) color->pixel;
514 /* Internal function: changes a GTK tag to correspond with the given style. */
516 apply_stylehint_to_tag(GtkTextTag *tag, glui32 hint, glsi32 val)
518 g_return_if_fail(tag != NULL);
520 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
521 GObject *tag_object = G_OBJECT(tag);
523 gint reverse_color = GPOINTER_TO_INT( g_object_get_data(tag_object, "reverse-color") );
528 case stylehint_Indentation:
529 g_object_set(tag_object, "left-margin", 5*val, "left-margin-set", TRUE, NULL);
530 g_object_set(tag_object, "right-margin", 5*val, "right-margin-set", TRUE, NULL);
533 case stylehint_ParaIndentation:
534 g_object_set(tag_object, "indent", 5*val, "indent-set", TRUE, NULL);
537 case stylehint_Justification:
539 case stylehint_just_LeftFlush: i = GTK_JUSTIFY_LEFT; break;
540 case stylehint_just_LeftRight: i = GTK_JUSTIFY_FILL; break;
541 case stylehint_just_Centered: i = GTK_JUSTIFY_CENTER; break;
542 case stylehint_just_RightFlush: i = GTK_JUSTIFY_RIGHT; break;
544 WARNING("Unknown justification");
545 i = GTK_JUSTIFY_LEFT;
547 g_object_set(tag_object, "justification", i, "justification-set", TRUE, NULL);
550 case stylehint_Weight:
552 case -1: i = PANGO_WEIGHT_LIGHT; break;
553 case 0: i = PANGO_WEIGHT_NORMAL; break;
554 case 1: i = PANGO_WEIGHT_BOLD; break;
555 default: WARNING("Unknown font weight");
557 g_object_set(tag_object, "weight", i, "weight-set", TRUE, NULL);
561 g_object_set(tag_object, "size", 14+(2*val), "size-set", TRUE, NULL);
564 case stylehint_Oblique:
565 g_object_set(tag_object, "style", val ? PANGO_STYLE_ITALIC : PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
568 case stylehint_Proportional:
569 g_object_set(tag_object, "font-desc", val ? glk_data->default_font_desc : glk_data->monospace_font_desc, NULL);
572 case stylehint_TextColor:
573 color_format(val, color);
576 g_object_set(tag_object, "foreground", color, "foreground-set", TRUE, NULL);
578 g_object_set(tag_object, "background", color, "background-set", TRUE, NULL);
582 case stylehint_BackColor:
583 color_format(val, color);
586 g_object_set(tag_object, "background", color, "background-set", TRUE, NULL);
588 g_object_set(tag_object, "foreground", color, "background-set", TRUE, NULL);
592 case stylehint_ReverseColor:
593 if(reverse_color != val) {
594 /* Flip the fore- and background colors */
595 GdkColor* foreground_color;
596 GdkColor* background_color;
597 gint f_set, b_set = 0;
598 g_object_get(tag_object, "foreground-set", &f_set, "background-set", &b_set, NULL);
601 g_object_get(tag_object, "foreground-gdk", &foreground_color, NULL);
603 g_object_get(tag_object, "background-gdk", &background_color, NULL);
606 g_object_set(tag_object, "foreground-gdk", background_color, NULL);
608 g_object_set(tag_object, "foreground", "#ffffff", NULL);
611 g_object_set(tag_object, "background-gdk", foreground_color, NULL);
613 g_object_set(tag_object, "background", "#000000", NULL);
615 g_object_set_data( tag_object, "reverse-color", GINT_TO_POINTER(val != 0) );
620 WARNING("Unknown style hint");
623 /*Internal function: queries a text tag for the value of a given style hint */
625 query_tag(GtkTextTag *tag, glui32 hint)
631 g_return_val_if_fail(tag != NULL, 0);
633 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
636 case stylehint_Indentation:
637 g_object_get(tag, "left_margin", &intval, NULL);
641 case stylehint_ParaIndentation:
642 g_object_get(tag, "indent", &intval, NULL);
646 case stylehint_Justification:
647 g_object_get(tag, "justification", &intval, NULL);
649 case GTK_JUSTIFY_LEFT: return stylehint_just_LeftFlush; break;
650 case GTK_JUSTIFY_FILL: return stylehint_just_LeftRight; break;
651 case GTK_JUSTIFY_CENTER: return stylehint_just_Centered; break;
652 case GTK_JUSTIFY_RIGHT: return stylehint_just_RightFlush; break;
654 WARNING("Unknown justification");
655 return stylehint_just_LeftFlush;
659 case stylehint_Weight:
660 g_object_get(tag, "weight", &intval, NULL);
662 case PANGO_WEIGHT_LIGHT: return -1; break;
663 case PANGO_WEIGHT_NORMAL: return 0; break;
664 case PANGO_WEIGHT_BOLD: return 1; break;
665 default: WARNING("Unknown font weight"); return 0;
670 g_object_get(tag, "size", &intval, NULL);
671 return (intval/2)-14;
674 case stylehint_Oblique:
675 g_object_get(tag, "style", &intval , NULL);
676 return intval == PANGO_STYLE_ITALIC ? 1 : 0;
679 case stylehint_Proportional:
680 g_object_get(tag, "font-desc", &objval, NULL);
681 return objval == (GObject *)glk_data->monospace_font_desc ? 0 : 1;
684 case stylehint_TextColor:
685 g_object_get(tag, "foreground-gdk", &colval, NULL);
686 return color_parse_gdk(colval);
689 case stylehint_BackColor:
690 g_object_get(tag, "background-gdk", &colval, NULL);
691 return color_parse_gdk(colval);
694 case stylehint_ReverseColor:
695 return GPOINTER_TO_INT( g_object_get_data(G_OBJECT(tag), "reverse_color") );
699 WARNING("Unknown style hint");
707 * @wintype: The window type to set a style hint on, or %wintype_AllTypes.
708 * @styl: The style to set a hint for.
709 * @hint: The type of style hint, one of the <code>stylehint_</code> constants.
710 * @val: The style hint. The meaning of this depends on @hint.
712 * Sets a hint about the appearance of one style for a particular type of
713 * window. You can also set wintype to %wintype_AllTypes, which sets a hint for
714 * all types of window.
716 * There is no equivalent constant to set a hint for all styles of a single
721 glk_stylehint_set(glui32 wintype, glui32 styl, glui32 hint, glsi32 val)
723 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
725 if( G_UNLIKELY(!glk_data->style_initialized) ) {
729 GtkTextTag *to_change;
730 if(wintype == wintype_TextBuffer || wintype == wintype_AllTypes) {
731 to_change = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
732 apply_stylehint_to_tag(to_change, hint, val);
735 if(wintype == wintype_TextGrid || wintype == wintype_AllTypes) {
736 to_change = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
737 apply_stylehint_to_tag(to_change, hint, val);
742 * glk_stylehint_clear:
743 * @wintype: The window type to set a style hint on, or %wintype_AllTypes.
744 * @styl: The style to set a hint for.
745 * @hint: The type of style hint, one of the <code>stylehint_</code> constants.
747 * Resets a hint about the appearance of one style for a particular type of
748 * window to it's default value. You can also set wintype to %wintype_AllTypes, which resets a hint for
749 * all types of window.
751 * There is no equivalent constant to reset a hint for all styles of a single
756 glk_stylehint_clear(glui32 wintype, glui32 styl, glui32 hint)
758 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
762 case wintype_TextBuffer:
763 tag = g_hash_table_lookup( glk_data->default_styles->text_buffer, get_tag_name(styl) );
764 glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
766 case wintype_TextGrid:
767 tag = g_hash_table_lookup( glk_data->default_styles->text_grid, get_tag_name(styl) );
768 glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
775 * glk_style_distinguish:
776 * @win: The window in which the styles are to be distinguished.
777 * @styl1: The first style to be distinguished from the second style.
778 * @styl2: The second styel to be distinguished from the first style.
780 * Returns: TRUE if the two styles are visually distinguishable in the given window.
781 * If they are not, it returns FALSE.
784 glk_style_distinguish(winid_t win, glui32 styl1, glui32 styl2)
786 return styl1 != styl2;
791 * @win: The window from which to take the style.
792 * @styl: The style to perform the measurement on.
793 * @hint: The stylehint to measure.
794 * @result: Address to write the result to.
796 * This function can be used to query the current value of a particular style hint.
797 * Returns: TRUE upon successul retrievel, otherwise FALSE.
800 glk_style_measure(winid_t win, glui32 styl, glui32 hint, glui32 *result)
802 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
806 case wintype_TextBuffer:
807 tag = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
808 *result = query_tag(tag, hint);
810 case wintype_TextGrid:
811 tag = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
812 *result = query_tag(tag, hint);
820 /* Internal function returning the current default font for a window type
821 * This can be used later for size calculations. Only wintype_TextGrid and wintype_TextBuffer are
822 * supported for now */
823 PangoFontDescription*
824 get_current_font(guint32 wintype)
826 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
830 case wintype_TextGrid:
831 normal = g_hash_table_lookup(glk_data->default_styles->text_grid, "normal");
833 case wintype_TextBuffer:
834 normal = g_hash_table_lookup(glk_data->default_styles->text_buffer, "normal");
840 PangoFontDescription *font;
841 g_object_get( G_OBJECT(normal), "font-desc", &font, NULL );