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 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 data that was added manually */
161 gpointer reverse_color = g_object_get_data( G_OBJECT(tag), "reverse_color" );
164 g_object_set_data( G_OBJECT(copy), "reverse_color", reverse_color );
169 /* Internal function that reads the default styles from a CSS file */
173 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
174 GHashTable *default_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_object_unref);
175 GHashTable *default_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_object_unref);
176 GHashTable *current_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_object_unref);
177 GHashTable *current_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_object_unref);
180 /* Create the CSS file scanner */
181 GScanner *scanner = g_scanner_new(NULL);
183 int f = open(glk_data->css_file, O_RDONLY);
184 g_return_if_fail(f != -1);
185 g_scanner_input_file(scanner, f);
186 scanner->input_name = glk_data->css_file;
187 scanner->config->cset_identifier_first = G_CSET_a_2_z G_CSET_A_2_Z "#";
188 scanner->config->cset_identifier_nth = G_CSET_a_2_z G_CSET_A_2_Z "-_" G_CSET_DIGITS;
189 scanner->config->symbol_2_token = TRUE;
190 scanner->config->cpair_comment_single = NULL;
191 scanner->config->scan_float = FALSE;
193 /* Initialise the default styles for a text grid */
194 tag = gtk_text_tag_new("normal");
195 g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
196 g_hash_table_insert(default_text_grid_styles, "normal", tag);
198 tag = gtk_text_tag_new("emphasized");
199 g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
200 g_hash_table_insert(default_text_grid_styles, "emphasized", tag);
202 tag = gtk_text_tag_new("preformatted");
203 g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
204 g_hash_table_insert(default_text_grid_styles, "preformatted", tag);
206 tag = gtk_text_tag_new("header");
207 g_object_set(tag, "weight", PANGO_WEIGHT_BOLD, NULL);
208 g_hash_table_insert(default_text_grid_styles, "header", tag);
210 tag = gtk_text_tag_new("subheader");
211 g_object_set(tag, "weight", PANGO_WEIGHT_BOLD, NULL);
212 g_hash_table_insert(default_text_grid_styles, "subheader", tag);
214 tag = gtk_text_tag_new("alert");
215 g_object_set(tag, "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
216 g_hash_table_insert(default_text_grid_styles, "alert", tag);
218 tag = gtk_text_tag_new("note");
219 g_object_set(tag, "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
220 g_hash_table_insert(default_text_grid_styles, "note", tag);
222 tag = gtk_text_tag_new("block-quote");
223 g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
224 g_hash_table_insert(default_text_grid_styles, "block-quote", tag);
226 g_hash_table_insert(default_text_grid_styles, "input", gtk_text_tag_new("input"));
227 g_hash_table_insert(default_text_grid_styles, "user1", gtk_text_tag_new("user1"));
228 g_hash_table_insert(default_text_grid_styles, "user2", gtk_text_tag_new("user2"));
230 tag = gtk_text_tag_new("hyperlink");
231 g_object_set(tag, "foreground", "#0000ff", "underline", PANGO_UNDERLINE_SINGLE, "underline-set", TRUE, NULL);
232 g_hash_table_insert(default_text_grid_styles, "hyperlink", tag);
234 /* Tags for the textbuffer */
235 tag = gtk_text_tag_new("normal");
236 g_object_set(tag, "font-desc", glk_data->default_font_desc, NULL);
237 g_hash_table_insert(default_text_buffer_styles, "normal", tag);
239 tag = gtk_text_tag_new("emphasized");
240 g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
241 g_hash_table_insert(default_text_buffer_styles, "emphasized", tag);
243 tag = gtk_text_tag_new("preformatted");
244 g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
245 g_hash_table_insert(default_text_buffer_styles, "preformatted", tag);
247 tag = gtk_text_tag_new("header");
248 g_object_set(tag, "size-points", 18.0, "weight", PANGO_WEIGHT_BOLD, NULL);
249 g_hash_table_insert(default_text_buffer_styles, "header", tag);
251 tag = gtk_text_tag_new("subheader");
252 g_object_set(tag, "size-points", 14.0, "weight", PANGO_WEIGHT_BOLD, NULL);
253 g_hash_table_insert(default_text_buffer_styles, "subheader", tag);
255 tag = gtk_text_tag_new("alert");
256 g_object_set(tag, "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
257 g_hash_table_insert(default_text_buffer_styles, "alert", tag);
259 tag = gtk_text_tag_new("note");
260 g_object_set(tag, "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
261 g_hash_table_insert(default_text_buffer_styles, "note", tag);
263 tag = gtk_text_tag_new("block-quote");
264 g_object_set(tag, "justification", GTK_JUSTIFY_CENTER, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
265 g_hash_table_insert(default_text_buffer_styles, "block-quote", tag);
267 g_hash_table_insert(default_text_buffer_styles, "input", gtk_text_tag_new("input"));
268 g_hash_table_insert(default_text_buffer_styles, "user1", gtk_text_tag_new("user1"));
269 g_hash_table_insert(default_text_buffer_styles, "user2", gtk_text_tag_new("user2"));
271 tag = gtk_text_tag_new("hyperlink");
272 g_object_set(tag, "foreground", "#0000ff", "underline", PANGO_UNDERLINE_SINGLE, "underline-set", TRUE, NULL);
273 g_hash_table_insert(default_text_buffer_styles, "hyperlink", tag);
276 glk_data->default_styles->text_grid = default_text_grid_styles;
277 glk_data->default_styles->text_buffer = default_text_buffer_styles;
279 /* Run the scanner over the CSS file, overriding defaults */
280 while( g_scanner_peek_next_token(scanner) != G_TOKEN_EOF) {
281 if( !style_accept_style_selector(scanner) )
285 /* Set the current style to a copy of the default style */
286 g_hash_table_foreach(default_text_grid_styles, style_table_copy, current_text_grid_styles);
287 g_hash_table_foreach(default_text_buffer_styles, style_table_copy, current_text_buffer_styles);
288 glk_data->current_styles->text_grid = current_text_grid_styles;
289 glk_data->current_styles->text_buffer = current_text_buffer_styles;
291 g_scanner_destroy(scanner);
293 glk_data->style_initialized = TRUE;
296 /* Internal function: parses a token */
298 style_accept(GScanner *scanner, GTokenType token)
300 GTokenType next = g_scanner_get_next_token(scanner);
302 g_scanner_unexp_token(scanner, token, NULL, NULL, NULL, "CSS Error", 1);
309 /* Internal function: parses a style selector */
311 style_accept_style_selector(GScanner *scanner)
313 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
315 GtkTextTag *current_tag;
317 GTokenType token = g_scanner_get_next_token(scanner);
318 GTokenValue value = g_scanner_cur_value(scanner);
321 token != G_TOKEN_IDENTIFIER ||
322 ( strcmp(value.v_identifier, "buffer") && strcmp(value.v_identifier, "grid") )
324 g_scanner_error(scanner, "CSS Error: buffer/grid expected");
328 field = g_strdup(value.v_identifier);
330 if( !style_accept(scanner, '.') )
333 token = g_scanner_get_next_token(scanner);
334 value = g_scanner_cur_value(scanner);
336 if(token != G_TOKEN_IDENTIFIER) {
337 g_scanner_error(scanner, "CSS Error: style selector expected");
341 if( !strcmp(field, "buffer") )
342 current_tag = g_hash_table_lookup(glk_data->default_styles->text_buffer, value.v_identifier);
344 current_tag = g_hash_table_lookup(glk_data->default_styles->text_grid, value.v_identifier);
346 if(current_tag == NULL) {
347 g_scanner_error(scanner, "CSS Error: invalid style identifier");
351 if( !style_accept(scanner, '{') )
354 while( g_scanner_peek_next_token(scanner) != '}') {
355 if( !style_accept_style_hint(scanner, current_tag) )
359 if( !style_accept(scanner, '}') )
365 /* Internal function: parses a style hint */
367 style_accept_style_hint(GScanner *scanner, GtkTextTag *current_tag)
369 GTokenType token = g_scanner_get_next_token(scanner);
370 GTokenValue value = g_scanner_cur_value(scanner);
373 if(token != G_TOKEN_IDENTIFIER) {
374 g_scanner_error(scanner, "CSS Error: style hint expected");
378 hint = g_strdup(value.v_identifier);
380 if( !style_accept(scanner, ':') )
383 token = g_scanner_get_next_token(scanner);
384 value = g_scanner_cur_value(scanner);
386 if( !strcmp(hint, "font-family") ) {
387 if(token != G_TOKEN_STRING) {
388 g_scanner_error(scanner, "CSS Error: string expected");
391 g_object_set(current_tag, "family", value.v_string, "family-set", TRUE, NULL);
393 else if( !strcmp(hint, "font-weight") ) {
394 if(token != G_TOKEN_IDENTIFIER) {
395 g_scanner_error(scanner, "CSS Error: bold/normal expected");
399 if( !strcmp(value.v_identifier, "bold") )
400 g_object_set(current_tag, "weight", PANGO_WEIGHT_BOLD, "weight-set", TRUE, NULL);
401 else if( !strcmp(value.v_identifier, "normal") )
402 g_object_set(current_tag, "weight", PANGO_WEIGHT_NORMAL, "weight-set", TRUE, NULL);
404 g_scanner_error(scanner, "CSS Error: bold/normal expected");
408 else if( !strcmp(hint, "font-style") ) {
409 if(token != G_TOKEN_IDENTIFIER) {
410 g_scanner_error(scanner, "CSS Error: italic/normal expected");
414 if( !strcmp(value.v_identifier, "italic") )
415 g_object_set(current_tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
416 else if( !strcmp(value.v_identifier, "normal") )
417 g_object_set(current_tag, "style", PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
419 g_scanner_error(scanner, "CSS Error: italic/normal expected");
423 else if( !strcmp(hint, "font-size") ) {
424 if(token == G_TOKEN_INT)
425 g_object_set(current_tag, "size-points", (float)value.v_int, "size-set", TRUE, NULL);
426 else if(token == G_TOKEN_FLOAT)
427 g_object_set(current_tag, "size-points", value.v_float, "size-set", TRUE, NULL);
429 g_scanner_error(scanner, "CSS Error: integer or float expected");
433 else if( !strcmp(hint, "color") ) {
434 if(token != G_TOKEN_IDENTIFIER) {
435 g_scanner_error(scanner, "CSS Error: hex color expected");
439 g_object_set(current_tag, "foreground", value.v_identifier, "foreground-set", TRUE, NULL);
441 else if( !strcmp(hint, "background-color") ) {
442 if(token != G_TOKEN_IDENTIFIER) {
443 g_scanner_error(scanner, "CSS Error: hex color expected");
446 g_object_set(current_tag, "background", value.v_identifier, "background-set", TRUE, NULL);
448 else if( !strcmp(hint, "text-align") ) {
449 if(token != G_TOKEN_IDENTIFIER) {
450 g_scanner_error(scanner, "CSS Error: left/right/center expected");
454 if( !strcmp(value.v_identifier, "left") )
455 g_object_set(current_tag, "justification", GTK_JUSTIFY_LEFT, "justification-set", TRUE, NULL);
456 else if( !strcmp(value.v_identifier, "right") )
457 g_object_set(current_tag, "justification", GTK_JUSTIFY_RIGHT, "justification-set", TRUE, NULL);
458 else if( !strcmp(value.v_identifier, "center") )
459 g_object_set(current_tag, "justification", GTK_JUSTIFY_CENTER, "justification-set", TRUE, NULL);
461 g_scanner_error(scanner, "CSS Error: left/right/center expected");
465 else if( !strcmp(hint, "margin-left") ) {
466 if(token != G_TOKEN_INT) {
467 g_scanner_error(scanner, "CSS Error: integer expected");
470 g_object_set(current_tag, "left-margin", value.v_int, "left-margin-set", TRUE, NULL);
472 else if( !strcmp(hint, "margin-right") ) {
473 if(token != G_TOKEN_INT) {
474 g_scanner_error(scanner, "CSS Error: integer expected");
477 g_object_set(current_tag, "right-margin", value.v_int, "right-margin-set", TRUE, NULL);
479 else if( !strcmp(hint, "margin-top") ) {
480 if(token != G_TOKEN_INT) {
481 g_scanner_error(scanner, "CSS Error: integer expected");
484 g_object_set(current_tag, "pixels-above-lines", value.v_int, "pixels-above-lines-set", TRUE, NULL);
486 else if( !strcmp(hint, "margin-bottom") ) {
487 if(token != G_TOKEN_INT) {
488 g_scanner_error(scanner, "CSS Error: integer expected");
491 g_object_set(current_tag, "pixels-below-lines", value.v_int, "pixels-below-lines-set", TRUE, NULL);
495 g_scanner_error(scanner, "CSS Error: invalid style hint %s", hint);
499 if( !style_accept(scanner, ';') )
505 /* Internal function: parses a glk color to a #hex-value */
507 color_format(glui32 val, gchar *buffer)
509 g_return_if_fail(buffer != NULL);
511 sprintf(buffer, "#%02X%02X%02X",
512 ((val & 0xff0000) >> 16),
513 ((val & 0x00ff00) >> 8),
518 /* Internal function: parses a GdkColor to a glk color */
520 color_parse_gdk(GdkColor *color)
522 g_return_val_if_fail(color != NULL, 0);
523 return (glui32) color->pixel;
526 /* Internal function: changes a GTK tag to correspond with the given style. */
528 apply_stylehint_to_tag(GtkTextTag *tag, glui32 hint, glsi32 val)
530 g_return_if_fail(tag != NULL);
532 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
533 GObject *tag_object = G_OBJECT(tag);
535 gint reverse_color = GPOINTER_TO_INT( g_object_get_data(tag_object, "reverse-color") );
540 case stylehint_Indentation:
541 g_object_set(tag_object, "left-margin", 5*val, "left-margin-set", TRUE, NULL);
542 g_object_set(tag_object, "right-margin", 5*val, "right-margin-set", TRUE, NULL);
545 case stylehint_ParaIndentation:
546 g_object_set(tag_object, "indent", 5*val, "indent-set", TRUE, NULL);
549 case stylehint_Justification:
551 case stylehint_just_LeftFlush: i = GTK_JUSTIFY_LEFT; break;
552 case stylehint_just_LeftRight: i = GTK_JUSTIFY_FILL; break;
553 case stylehint_just_Centered: i = GTK_JUSTIFY_CENTER; break;
554 case stylehint_just_RightFlush: i = GTK_JUSTIFY_RIGHT; break;
556 WARNING("Unknown justification");
557 i = GTK_JUSTIFY_LEFT;
559 g_object_set(tag_object, "justification", i, "justification-set", TRUE, NULL);
562 case stylehint_Weight:
564 case -1: i = PANGO_WEIGHT_LIGHT; break;
565 case 0: i = PANGO_WEIGHT_NORMAL; break;
566 case 1: i = PANGO_WEIGHT_BOLD; break;
567 default: WARNING("Unknown font weight");
569 g_object_set(tag_object, "weight", i, "weight-set", TRUE, NULL);
573 g_object_set(tag_object, "size", 14+(2*val), "size-set", TRUE, NULL);
576 case stylehint_Oblique:
577 g_object_set(tag_object, "style", val ? PANGO_STYLE_ITALIC : PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
580 case stylehint_Proportional:
581 g_object_set(tag_object, "font-desc", val ? glk_data->default_font_desc : glk_data->monospace_font_desc, NULL);
584 case stylehint_TextColor:
585 color_format(val, color);
588 g_object_set(tag_object, "foreground", color, "foreground-set", TRUE, NULL);
590 g_object_set(tag_object, "background", color, "background-set", TRUE, NULL);
594 case stylehint_BackColor:
595 color_format(val, color);
598 g_object_set(tag_object, "background", color, "background-set", TRUE, NULL);
600 g_object_set(tag_object, "foreground", color, "background-set", TRUE, NULL);
604 case stylehint_ReverseColor:
605 if(reverse_color != val) {
606 /* Flip the fore- and background colors */
607 GdkColor* foreground_color;
608 GdkColor* background_color;
609 gint f_set, b_set = 0;
610 g_object_get(tag_object, "foreground-set", &f_set, "background-set", &b_set, NULL);
613 g_object_get(tag_object, "foreground-gdk", &foreground_color, NULL);
615 g_object_get(tag_object, "background-gdk", &background_color, NULL);
618 g_object_set(tag_object, "foreground-gdk", background_color, NULL);
620 g_object_set(tag_object, "foreground", "#ffffff", NULL);
623 g_object_set(tag_object, "background-gdk", foreground_color, NULL);
625 g_object_set(tag_object, "background", "#000000", NULL);
627 g_object_set_data( tag_object, "reverse-color", GINT_TO_POINTER(val != 0) );
632 WARNING("Unknown style hint");
635 /*Internal function: queries a text tag for the value of a given style hint */
637 query_tag(GtkTextTag *tag, glui32 hint)
643 g_return_val_if_fail(tag != NULL, 0);
645 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
648 case stylehint_Indentation:
649 g_object_get(tag, "left_margin", &intval, NULL);
653 case stylehint_ParaIndentation:
654 g_object_get(tag, "indent", &intval, NULL);
658 case stylehint_Justification:
659 g_object_get(tag, "justification", &intval, NULL);
661 case GTK_JUSTIFY_LEFT: return stylehint_just_LeftFlush; break;
662 case GTK_JUSTIFY_FILL: return stylehint_just_LeftRight; break;
663 case GTK_JUSTIFY_CENTER: return stylehint_just_Centered; break;
664 case GTK_JUSTIFY_RIGHT: return stylehint_just_RightFlush; break;
666 WARNING("Unknown justification");
667 return stylehint_just_LeftFlush;
671 case stylehint_Weight:
672 g_object_get(tag, "weight", &intval, NULL);
674 case PANGO_WEIGHT_LIGHT: return -1; break;
675 case PANGO_WEIGHT_NORMAL: return 0; break;
676 case PANGO_WEIGHT_BOLD: return 1; break;
677 default: WARNING("Unknown font weight"); return 0;
682 g_object_get(tag, "size", &intval, NULL);
683 return (intval/2)-14;
686 case stylehint_Oblique:
687 g_object_get(tag, "style", &intval , NULL);
688 return intval == PANGO_STYLE_ITALIC ? 1 : 0;
691 case stylehint_Proportional:
692 g_object_get(tag, "font-desc", &objval, NULL);
693 return objval == (GObject *)glk_data->monospace_font_desc ? 0 : 1;
696 case stylehint_TextColor:
697 g_object_get(tag, "foreground-gdk", &colval, NULL);
698 return color_parse_gdk(colval);
701 case stylehint_BackColor:
702 g_object_get(tag, "background-gdk", &colval, NULL);
703 return color_parse_gdk(colval);
706 case stylehint_ReverseColor:
707 return GPOINTER_TO_INT( g_object_get_data(G_OBJECT(tag), "reverse_color") );
711 WARNING("Unknown style hint");
719 * @wintype: The window type to set a style hint on, or %wintype_AllTypes.
720 * @styl: The style to set a hint for.
721 * @hint: The type of style hint, one of the <code>stylehint_</code> constants.
722 * @val: The style hint. The meaning of this depends on @hint.
724 * Sets a hint about the appearance of one style for a particular type of
725 * window. You can also set wintype to %wintype_AllTypes, which sets a hint for
726 * all types of window.
728 * There is no equivalent constant to set a hint for all styles of a single
733 glk_stylehint_set(glui32 wintype, glui32 styl, glui32 hint, glsi32 val)
735 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
737 if( G_UNLIKELY(!glk_data->style_initialized) ) {
741 GtkTextTag *to_change;
742 if(wintype == wintype_TextBuffer || wintype == wintype_AllTypes) {
743 to_change = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
744 apply_stylehint_to_tag(to_change, hint, val);
747 if(wintype == wintype_TextGrid || wintype == wintype_AllTypes) {
748 to_change = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
749 apply_stylehint_to_tag(to_change, hint, val);
754 * glk_stylehint_clear:
755 * @wintype: The window type to set a style hint on, or %wintype_AllTypes.
756 * @styl: The style to set a hint for.
757 * @hint: The type of style hint, one of the <code>stylehint_</code> constants.
759 * Resets a hint about the appearance of one style for a particular type of
760 * window to it's default value. You can also set wintype to %wintype_AllTypes, which resets a hint for
761 * all types of window.
763 * There is no equivalent constant to reset a hint for all styles of a single
768 glk_stylehint_clear(glui32 wintype, glui32 styl, glui32 hint)
770 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
774 case wintype_TextBuffer:
775 tag = g_hash_table_lookup( glk_data->default_styles->text_buffer, get_tag_name(styl) );
776 glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
778 case wintype_TextGrid:
779 tag = g_hash_table_lookup( glk_data->default_styles->text_grid, get_tag_name(styl) );
780 glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
787 * glk_style_distinguish:
788 * @win: The window in which the styles are to be distinguished.
789 * @styl1: The first style to be distinguished from the second style.
790 * @styl2: The second styel to be distinguished from the first style.
792 * Returns: TRUE if the two styles are visually distinguishable in the given window.
793 * If they are not, it returns FALSE.
796 glk_style_distinguish(winid_t win, glui32 styl1, glui32 styl2)
798 return styl1 != styl2;
803 * @win: The window from which to take the style.
804 * @styl: The style to perform the measurement on.
805 * @hint: The stylehint to measure.
806 * @result: Address to write the result to.
808 * This function can be used to query the current value of a particular style hint.
809 * Returns: TRUE upon successul retrievel, otherwise FALSE.
812 glk_style_measure(winid_t win, glui32 styl, glui32 hint, glui32 *result)
814 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
818 case wintype_TextBuffer:
819 tag = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
820 *result = query_tag(tag, hint);
822 case wintype_TextGrid:
823 tag = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
824 *result = query_tag(tag, hint);
832 /* Internal function returning the current default font for a window type
833 * This can be used later for size calculations. Only wintype_TextGrid and wintype_TextBuffer are
834 * supported for now */
835 PangoFontDescription*
836 get_current_font(guint32 wintype)
838 ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
841 if( G_UNLIKELY(!glk_data->style_initialized) ) {
846 case wintype_TextGrid:
847 normal = g_hash_table_lookup(glk_data->current_styles->text_grid, "normal");
849 case wintype_TextBuffer:
850 normal = g_hash_table_lookup(glk_data->current_styles->text_buffer, "normal");
856 PangoFontDescription *font;
857 g_object_get( G_OBJECT(normal), "font-desc", &font, NULL );