#include "style.h"
+#include <stdio.h>
+#include <fcntl.h>
extern GPrivate *glk_data_key;
+static gboolean chimara_style_initialized = FALSE;
/**
* glk_set_style:
{
g_return_if_fail(buffer != NULL);
+ if( G_UNLIKELY(!chimara_style_initialized) ) {
+ style_init();
+ }
+
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+ g_hash_table_foreach(glk_data->default_styles, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
+}
+
+static void
+style_add_tag_to_textbuffer(gpointer key, gpointer tag, gpointer tag_table)
+{
+ gtk_text_tag_table_add(tag_table, tag);
+}
+
+void
+style_init()
+{
ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+ GtkTextTag *tag;
+
+ /* Create the CSS file scanner */
+ GScanner *scanner = g_scanner_new(NULL);
+ int f = open(glk_data->css_file, O_RDONLY);
+ g_return_if_fail(f != -1);
+ g_scanner_input_file(scanner, f);
+ scanner->input_name = glk_data->css_file;
+ scanner->config->cset_identifier_first = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ#";
+ scanner->config->cset_identifier_nth = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_0123456789";
+ scanner->config->symbol_2_token = TRUE;
+ scanner->config->cpair_comment_single = NULL;
+
+ /* Initialise the default styles */
+ g_hash_table_insert(glk_data->default_styles, "normal", gtk_text_tag_new("normal"));
+
+ tag = gtk_text_tag_new("emphasized");
+ g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
+ g_hash_table_insert(glk_data->default_styles, "emphasized", tag);
+
+ tag = gtk_text_tag_new("preformatted");
+ g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
+ g_hash_table_insert(glk_data->default_styles, "preformatted", tag);
+
+ tag = gtk_text_tag_new("header");
+ g_object_set(tag, "size-points", 18.0, "weight", PANGO_WEIGHT_BOLD, NULL);
+ g_hash_table_insert(glk_data->default_styles, "header", tag);
+
+ tag = gtk_text_tag_new("subheader");
+ g_object_set(tag, "size-points", 14.0, "weight", PANGO_WEIGHT_BOLD, NULL);
+ g_hash_table_insert(glk_data->default_styles, "subheader", tag);
+
+ tag = gtk_text_tag_new("alert");
+ g_object_set(tag, "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
+ g_hash_table_insert(glk_data->default_styles, "alert", tag);
+
+ tag = gtk_text_tag_new("note");
+ g_object_set(tag, "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
+ g_hash_table_insert(glk_data->default_styles, "note", tag);
+
+ tag = gtk_text_tag_new("block-quote");
+ g_object_set(tag, "justification", GTK_JUSTIFY_CENTER, "style", PANGO_STYLE_ITALIC, NULL);
+ g_hash_table_insert(glk_data->default_styles, "block-quote", tag);
+
+ g_hash_table_insert(glk_data->default_styles, "input", gtk_text_tag_new("input"));
+ g_hash_table_insert(glk_data->default_styles, "user1", gtk_text_tag_new("user1"));
+ g_hash_table_insert(glk_data->default_styles, "user2", gtk_text_tag_new("user2"));
+
+ /* Run the scanner over the CSS file */
+ while( g_scanner_peek_next_token(scanner) != G_TOKEN_EOF) {
+ if( !style_accept_style_identifier(scanner) )
+ break;
+ }
+
+ g_scanner_destroy(scanner);
+}
+
+static gboolean
+style_accept(GScanner *scanner, GTokenType token)
+{
+ if( g_scanner_get_next_token(scanner) != token ) {
+ g_scanner_unexp_token(scanner, token, NULL, NULL, NULL, "CSS Error", 1);
+ return FALSE;
+ } else {
+ return TRUE;
+ }
+}
+
+static gboolean
+style_accept_style_identifier(GScanner *scanner)
+{
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+
+ GtkTextTag *current_tag;
+ GTokenType token = g_scanner_get_next_token(scanner);
+ GTokenValue value = g_scanner_cur_value(scanner);
+
+ if(token != G_TOKEN_IDENTIFIER) {
+ g_scanner_error(scanner, "CSS Error: style identifier expected");
+ return FALSE;
+ }
+
+ printf("Identifier: %s\n", value.v_identifier);
+ current_tag = g_hash_table_lookup(glk_data->default_styles, value.v_identifier);
+
+ if(current_tag == NULL) {
+ g_scanner_error(scanner, "CSS Error: invalid style identifier");
+ return FALSE;
+ }
+
+ if( !style_accept(scanner, '{') )
+ return FALSE;
+
+ while( g_scanner_peek_next_token(scanner) != '}') {
+ if( !style_accept_style_hint(scanner, current_tag) )
+ return FALSE;
+ }
+
+ if( !style_accept(scanner, '}') )
+ return FALSE;
+
+ return TRUE;
+}
+
+static gboolean
+style_accept_style_hint(GScanner *scanner, GtkTextTag *current_tag)
+{
+ GTokenType token = g_scanner_get_next_token(scanner);
+ GTokenValue value = g_scanner_cur_value(scanner);
+ gchar *hint;
+
+ if(token != G_TOKEN_IDENTIFIER) {
+ g_scanner_error(scanner, "CSS Error: style hint expected");
+ return FALSE;
+ }
+
+ hint = g_strdup(value.v_identifier);
+ printf("Hint: %s\n", hint);
+
+ if( !style_accept(scanner, ':') )
+ return FALSE;
+
+ token = g_scanner_get_next_token(scanner);
+ value = g_scanner_cur_value(scanner);
+
+ if( !strcmp(hint, "font-family") ) {
+ if(token != G_TOKEN_STRING) {
+ g_scanner_error(scanner, "CSS Error: string expected");
+ return FALSE;
+ }
+ g_object_set(current_tag, "family", value.v_string, "family-set", TRUE, NULL);
+ }
+ else if( !strcmp(hint, "font-weight") ) {
+ if(token != G_TOKEN_IDENTIFIER) {
+ g_scanner_error(scanner, "CSS Error: bold/normal expected");
+ return FALSE;
+ }
+
+ if( !strcmp(value.v_identifier, "bold") )
+ g_object_set(current_tag, "weight", PANGO_WEIGHT_BOLD, "weight-set", TRUE, NULL);
+ else if( !strcmp(value.v_identifier, "normal") )
+ g_object_set(current_tag, "weight", PANGO_WEIGHT_NORMAL, "weight-set", TRUE, NULL);
+ else {
+ g_scanner_error(scanner, "CSS Error: bold/normal expected");
+ return FALSE;
+ }
+ }
+ else if( !strcmp(hint, "font-style") ) {
+ if(token != G_TOKEN_IDENTIFIER) {
+ g_scanner_error(scanner, "CSS Error: italic/normal expected");
+ return FALSE;
+ }
+
+ if( !strcmp(value.v_identifier, "italic") )
+ g_object_set(current_tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
+ else if( !strcmp(value.v_identifier, "normal") )
+ g_object_set(current_tag, "style", PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
+ else {
+ g_scanner_error(scanner, "CSS Error: italic/normal expected");
+ return FALSE;
+ }
+ }
+ else if( !strcmp(hint, "font-size") ) {
+ if(token == G_TOKEN_INT)
+ g_object_set(current_tag, "size-points", (float)value.v_int, "size-set", TRUE, NULL);
+ else if(token == G_TOKEN_FLOAT)
+ g_object_set(current_tag, "size-points", value.v_float, "size-set", TRUE, NULL);
+ else {
+ g_scanner_error(scanner, "CSS Error: integer or float expected");
+ return FALSE;
+ }
+ }
+ else if( !strcmp(hint, "color") ) {
+ if(token != G_TOKEN_IDENTIFIER) {
+ g_scanner_error(scanner, "CSS Error: hex color expected");
+ return FALSE;
+ }
+ g_object_set(current_tag, "foreground", value.v_identifier, "foreground-set", TRUE, NULL);
+ }
+ else if( !strcmp(hint, "background-color") ) {
+ if(token != G_TOKEN_IDENTIFIER) {
+ g_scanner_error(scanner, "CSS Error: hex color expected");
+ return FALSE;
+ }
+ g_object_set(current_tag, "background", value.v_identifier, "background-set", TRUE, NULL);
+ }
+ else if( !strcmp(hint, "text-align") ) {
+ if(token != G_TOKEN_IDENTIFIER) {
+ g_scanner_error(scanner, "CSS Error: left/right/center expected");
+ return FALSE;
+ }
+
+ if( !strcmp(value.v_identifier, "left") )
+ g_object_set(current_tag, "justification", GTK_JUSTIFY_LEFT, "justification-set", TRUE, NULL);
+ else if( !strcmp(value.v_identifier, "right") )
+ g_object_set(current_tag, "justification", GTK_JUSTIFY_RIGHT, "justification-set", TRUE, NULL);
+ else if( !strcmp(value.v_identifier, "center") )
+ g_object_set(current_tag, "justification", GTK_JUSTIFY_CENTER, "justification-set", TRUE, NULL);
+ else {
+ g_scanner_error(scanner, "CSS Error: left/right/center expected");
+ return FALSE;
+ }
+ }
+ else if( !strcmp(hint, "margin-left") ) {
+ if(token != G_TOKEN_INT) {
+ g_scanner_error(scanner, "CSS Error: integer expected");
+ return FALSE;
+ }
+ g_object_set(current_tag, "left-margin", value.v_int, "left-margin-set", TRUE, NULL);
+ }
+ else if( !strcmp(hint, "margin-right") ) {
+ if(token != G_TOKEN_INT) {
+ g_scanner_error(scanner, "CSS Error: integer expected");
+ return FALSE;
+ }
+ g_object_set(current_tag, "right-margin", value.v_int, "right-margin-set", TRUE, NULL);
+ }
+ else if( !strcmp(hint, "margin-top") ) {
+ if(token != G_TOKEN_INT) {
+ g_scanner_error(scanner, "CSS Error: integer expected");
+ return FALSE;
+ }
+ g_object_set(current_tag, "pixels-above-lines", value.v_int, "pixels-above-lines-set", TRUE, NULL);
+ }
+ else if( !strcmp(hint, "margin-bottom") ) {
+ if(token != G_TOKEN_INT) {
+ g_scanner_error(scanner, "CSS Error: integer expected");
+ return FALSE;
+ }
+ g_object_set(current_tag, "pixels-below-lines", value.v_int, "pixels-below-lines-set", TRUE, NULL);
+ }
+
+ else {
+ g_scanner_error(scanner, "CSS Error: invalid style hint %s", hint);
+ return FALSE;
+ }
+
+ if( !style_accept(scanner, ';') )
+ return FALSE;
- gtk_text_buffer_create_tag(buffer, "normal", NULL);
- gtk_text_buffer_create_tag(buffer, "emphasized", "style", PANGO_STYLE_ITALIC, NULL);
- gtk_text_buffer_create_tag(buffer, "preformatted", "font-desc", glk_data->monospace_font_desc, NULL);
- gtk_text_buffer_create_tag(buffer, "header", "size-points", 18.0, "weight", PANGO_WEIGHT_BOLD, NULL);
- gtk_text_buffer_create_tag(buffer, "subheader", "size-points", 14.0, "weight", PANGO_WEIGHT_BOLD, NULL);
- gtk_text_buffer_create_tag(buffer, "alert", "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
- gtk_text_buffer_create_tag(buffer, "note", "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
- gtk_text_buffer_create_tag(buffer, "block-quote", "justification", GTK_JUSTIFY_CENTER, "style", PANGO_STYLE_ITALIC, NULL);
- gtk_text_buffer_create_tag(buffer, "input", NULL);
- gtk_text_buffer_create_tag(buffer, "user1", NULL);
- gtk_text_buffer_create_tag(buffer, "user2", NULL);
+ return TRUE;
}
static void
projects / rodin / chimara.git / blobdiff