extern GPrivate *glk_data_key;
static gboolean chimara_style_initialized = FALSE;
+
static gboolean style_accept(GScanner *scanner, GTokenType token);
-static gboolean style_accept_style_identifier(GScanner *scanner);
+static gboolean style_accept_style_selector(GScanner *scanner);
static gboolean style_accept_style_hint(GScanner *scanner, GtkTextTag *current_tag);
static void style_add_tag_to_textbuffer(gpointer key, gpointer tag, gpointer tag_table);
+static void style_table_copy(gpointer key, gpointer tag, gpointer target_table);
+static GtkTextTag* gtk_text_tag_copy(GtkTextTag *tag);
/**
* glk_set_style:
}
/* Internal function: mapping from style enum to tag name */
-static gchar *
+static gchar*
get_tag_name(glui32 style)
{
- switch(style) {
- case style_Normal: return "normal";
- case style_Emphasized: return "emphasized";
- case style_Preformatted: return "preformatted";
- case style_Header: return "header";
- case style_Subheader: return "subheader";
- case style_Alert: return "alert";
- case style_Note: return "note";
- case style_BlockQuote: return "block-quote";
- case style_Input: return "input";
- case style_User1: return "user1";
- case style_User2: return "user2";
+ if(style >= style_NUMSTYLES) {
+ WARNING("Unsupported style");
+ return "normal";
+ } else {
+ return (gchar*) TAG_NAMES[style];
}
-
- WARNING("Unsupported style");
- return "normal";
}
/**
}
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));
+ g_hash_table_foreach(glk_data->current_styles->text_buffer, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
+}
+
+/* Internal function: call this to initialize the default styles to a textgrid. */
+void
+style_init_textgrid(GtkTextBuffer *buffer)
+{
+ 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->current_styles->text_grid, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
}
+/* Internal function used to iterate over the default text tag table, applying them to a textbuffer */
static void
style_add_tag_to_textbuffer(gpointer key, gpointer tag, gpointer tag_table)
{
- gtk_text_tag_table_add(tag_table, tag);
+ gtk_text_tag_table_add( tag_table, gtk_text_tag_copy(tag) );
}
+/* Internal function used to iterate over a style table, copying it */
+static void
+style_table_copy(gpointer key, gpointer tag, gpointer target_table)
+{
+ g_return_if_fail(key != NULL);
+ g_return_if_fail(tag != NULL);
+ g_return_if_fail(target_table != NULL);
+
+ g_hash_table_insert(target_table, key, gtk_text_tag_copy( GTK_TEXT_TAG(tag) ));
+}
+
+/* Internal function that copies a text tag */
+static GtkTextTag*
+gtk_text_tag_copy(GtkTextTag *tag)
+{
+ GtkTextTag *copy;
+
+ g_return_val_if_fail(tag != NULL, NULL);
+
+ copy = gtk_text_tag_new(tag->name);
+ gtk_text_attributes_copy_values(tag->values, copy->values);
+
+ #define _COPY_FLAG(flag) copy->flag = tag->flag
+ _COPY_FLAG (bg_color_set);
+ _COPY_FLAG (bg_color_set);
+ _COPY_FLAG (bg_stipple_set);
+ _COPY_FLAG (fg_color_set);
+ _COPY_FLAG (fg_stipple_set);
+ _COPY_FLAG (justification_set);
+ _COPY_FLAG (left_margin_set);
+ _COPY_FLAG (indent_set);
+ _COPY_FLAG (rise_set);
+ _COPY_FLAG (strikethrough_set);
+ _COPY_FLAG (right_margin_set);
+ _COPY_FLAG (pixels_above_lines_set);
+ _COPY_FLAG (pixels_below_lines_set);
+ _COPY_FLAG (pixels_inside_wrap_set);
+ _COPY_FLAG (tabs_set);
+ _COPY_FLAG (underline_set);
+ _COPY_FLAG (wrap_mode_set);
+ _COPY_FLAG (bg_full_height_set);
+ _COPY_FLAG (invisible_set);
+ _COPY_FLAG (editable_set);
+ _COPY_FLAG (language_set);
+ #undef _COPY_FLAG
+
+ return copy;
+}
+
+/* Internal function that reads the default styles from a CSS file */
void
style_init()
{
ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+ GHashTable *default_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
+ GHashTable *default_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
+ GHashTable *current_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
+ GHashTable *current_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_object_unref);
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->config->cset_identifier_nth = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_0123456789";
scanner->config->symbol_2_token = TRUE;
scanner->config->cpair_comment_single = NULL;
+ scanner->config->scan_float = FALSE;
/* Initialise the default styles */
- g_hash_table_insert(glk_data->default_styles, "normal", gtk_text_tag_new("normal"));
+ g_hash_table_insert(default_text_grid_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);
+ g_hash_table_insert(default_text_grid_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);
+ g_hash_table_insert(default_text_grid_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);
+ g_hash_table_insert(default_text_grid_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);
+ g_hash_table_insert(default_text_grid_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);
+ g_hash_table_insert(default_text_grid_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);
+ g_hash_table_insert(default_text_grid_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(default_text_grid_styles, "block-quote", tag);
+
+ g_hash_table_insert(default_text_grid_styles, "input", gtk_text_tag_new("input"));
+ g_hash_table_insert(default_text_grid_styles, "user1", gtk_text_tag_new("user1"));
+ g_hash_table_insert(default_text_grid_styles, "user2", gtk_text_tag_new("user2"));
- 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"));
+ g_hash_table_foreach(default_text_grid_styles, style_table_copy, default_text_buffer_styles);
+ glk_data->default_styles->text_grid = default_text_grid_styles;
+ glk_data->default_styles->text_buffer = default_text_buffer_styles;
- /* Run the scanner over the CSS file */
+ /* Run the scanner over the CSS file, overriding defaults */
while( g_scanner_peek_next_token(scanner) != G_TOKEN_EOF) {
- if( !style_accept_style_identifier(scanner) )
+ if( !style_accept_style_selector(scanner) )
break;
}
+ /* Set the current style to a copy of the default style */
+ g_hash_table_foreach(default_text_grid_styles, style_table_copy, current_text_grid_styles);
+ g_hash_table_foreach(default_text_buffer_styles, style_table_copy, current_text_buffer_styles);
+ glk_data->current_styles->text_grid = current_text_grid_styles;
+ glk_data->current_styles->text_buffer = current_text_buffer_styles;
+
g_scanner_destroy(scanner);
+
+ chimara_style_initialized = TRUE;
}
+/* Internal function: parses a token */
static gboolean
style_accept(GScanner *scanner, GTokenType token)
{
- if( g_scanner_get_next_token(scanner) != token ) {
+ GTokenType next = g_scanner_get_next_token(scanner);
+ if(next != token ) {
g_scanner_unexp_token(scanner, token, NULL, NULL, NULL, "CSS Error", 1);
return FALSE;
} else {
}
}
+/* Internal function: parses a style selector */
static gboolean
-style_accept_style_identifier(GScanner *scanner)
+style_accept_style_selector(GScanner *scanner)
{
ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
GtkTextTag *current_tag;
+ gchar *field;
GTokenType token = g_scanner_get_next_token(scanner);
GTokenValue value = g_scanner_cur_value(scanner);
+ if(
+ token != G_TOKEN_IDENTIFIER ||
+ ( strcmp(value.v_identifier, "buffer") && strcmp(value.v_identifier, "grid") )
+ ) {
+ g_scanner_error(scanner, "CSS Error: buffer/grid expected");
+ return FALSE;
+ }
+
+ field = g_strdup(value.v_identifier);
+
+ if( !style_accept(scanner, '.') )
+ return FALSE;
+
+ token = g_scanner_get_next_token(scanner);
+ value = g_scanner_cur_value(scanner);
+
if(token != G_TOKEN_IDENTIFIER) {
- g_scanner_error(scanner, "CSS Error: style identifier expected");
+ g_scanner_error(scanner, "CSS Error: style selector expected");
return FALSE;
}
- printf("Identifier: %s\n", value.v_identifier);
- current_tag = g_hash_table_lookup(glk_data->default_styles, value.v_identifier);
+ if( !strcmp(field, "buffer") )
+ current_tag = g_hash_table_lookup(glk_data->default_styles->text_buffer, value.v_identifier);
+ else
+ current_tag = g_hash_table_lookup(glk_data->default_styles->text_grid, value.v_identifier);
if(current_tag == NULL) {
g_scanner_error(scanner, "CSS Error: invalid style identifier");
return TRUE;
}
+/* Internal function: parses a style hint */
static gboolean
style_accept_style_hint(GScanner *scanner, GtkTextTag *current_tag)
{
}
hint = g_strdup(value.v_identifier);
- printf("Hint: %s\n", hint);
if( !style_accept(scanner, ':') )
return FALSE;
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") ) {
return TRUE;
}
+/* Internal function: parses a glk color to a #hex-value */
static void
color_format(glui32 val, gchar *buffer)
{
+ g_return_if_fail(buffer != NULL);
+
sprintf(buffer, "#%02X%02X%02X",
((val & 0xff0000) >> 16),
((val & 0x00ff00) >> 8),
);
}
+/* Internal function: parses a GdkColor to a glk color */
+static glui32
+color_parse_gdk(GdkColor *color)
+{
+ g_return_val_if_fail(color != NULL, 0);
+ return (glui32) color->pixel;
+}
+
/* Internal function: changes a GTK tag to correspond with the given style. */
static void
apply_stylehint_to_tag(GtkTextTag *tag, glui32 hint, glsi32 val)
gchar color[20];
switch(hint) {
case stylehint_Indentation:
- g_object_set(tag_object, "left_margin", 5*val, NULL);
- g_object_set(tag_object, "right_margin", 5*val, NULL);
+ g_object_set(tag_object, "left-margin", 5*val, "left-margin-set", TRUE, NULL);
+ g_object_set(tag_object, "right-margin", 5*val, "right-margin-set", TRUE, NULL);
break;
case stylehint_ParaIndentation:
- g_object_set(tag_object, "indent", 5*val, NULL);
+ g_object_set(tag_object, "indent", 5*val, "indent-set", TRUE, NULL);
break;
case stylehint_Justification:
WARNING("Unknown justification");
i = GTK_JUSTIFY_LEFT;
}
- g_object_set(tag_object, "justification", i, NULL);
+ g_object_set(tag_object, "justification", i, "justification-set", TRUE, NULL);
break;
case stylehint_Weight:
case 1: i = PANGO_WEIGHT_BOLD; break;
default: WARNING("Unknown font weight");
}
- g_object_set(tag_object, "weight", i, NULL);
+ g_object_set(tag_object, "weight", i, "weight-set", TRUE, NULL);
break;
case stylehint_Size:
- g_object_set(tag_object, "size", 14+(2*val), NULL);
+ g_object_set(tag_object, "size", 14+(2*val), "size-set", TRUE, NULL);
break;
case stylehint_Oblique:
- g_object_set(tag_object, "style", val ? PANGO_STYLE_ITALIC : PANGO_STYLE_NORMAL, NULL);
+ g_object_set(tag_object, "style", val ? PANGO_STYLE_ITALIC : PANGO_STYLE_NORMAL, "style-set", TRUE, NULL);
break;
case stylehint_Proportional:
color_format(val, color);
if(!reverse_color)
- g_object_set(tag_object, "foreground", color, NULL);
+ g_object_set(tag_object, "foreground", color, "foreground-set", TRUE, NULL);
else
- g_object_set(tag_object, "background", color, NULL);
+ g_object_set(tag_object, "background", color, "background-set", TRUE, NULL);
break;
color_format(val, color);
if(!reverse_color)
- g_object_set(tag_object, "background", color, NULL);
+ g_object_set(tag_object, "background", color, "background-set", TRUE, NULL);
else
- g_object_set(tag_object, "foreground", color, NULL);
+ g_object_set(tag_object, "foreground", color, "background-set", TRUE, NULL);
break;
case stylehint_ReverseColor:
if(reverse_color != val) {
/* Flip the fore- and background colors */
- gchar* foreground_color;
- gchar* background_color;
- g_object_get(tag_object, "foreground", &foreground_color, NULL);
- g_object_get(tag_object, "background", &background_color, NULL);
- g_object_set(tag_object, "foreground", background_color, NULL);
- g_object_set(tag_object, "background", foreground_color, NULL);
- g_free(foreground_color);
- g_free(background_color);
+ GdkColor* foreground_color;
+ GdkColor* background_color;
+ gint f_set, b_set = 0;
+ g_object_get(tag_object, "foreground-set", &f_set, "background-set", &b_set, NULL);
+
+ if(f_set)
+ g_object_get(tag_object, "foreground-gdk", &foreground_color, NULL);
+ if(b_set)
+ g_object_get(tag_object, "background-gdk", &background_color, NULL);
+
+ if(b_set)
+ g_object_set(tag_object, "foreground-gdk", background_color, NULL);
+ else
+ g_object_set(tag_object, "foreground", "#ffffff", NULL);
+
+ if(f_set)
+ g_object_set(tag_object, "background-gdk", foreground_color, NULL);
+ else
+ g_object_set(tag_object, "background", "#000000", NULL);
}
break;
WARNING("Unknown style hint");
}
}
+/*Internal function: queries a text tag for the value of a given style hint */
+static gint
+query_tag(GtkTextTag *tag, glui32 hint)
+{
+ gint intval;
+ GObject *objval;
+ GdkColor *colval;
+
+ g_return_val_if_fail(tag != NULL, 0);
+
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+
+ switch(hint) {
+ case stylehint_Indentation:
+ g_object_get(tag, "left_margin", &intval, NULL);
+ return intval/5;
+ break;
+
+ case stylehint_ParaIndentation:
+ g_object_get(tag, "indent", &intval, NULL);
+ return intval/5;
+ break;
+
+ case stylehint_Justification:
+ g_object_get(tag, "justification", &intval, NULL);
+ switch(intval) {
+ case GTK_JUSTIFY_LEFT: return stylehint_just_LeftFlush; break;
+ case GTK_JUSTIFY_FILL: return stylehint_just_LeftRight; break;
+ case GTK_JUSTIFY_CENTER: return stylehint_just_Centered; break;
+ case GTK_JUSTIFY_RIGHT: return stylehint_just_RightFlush; break;
+ default:
+ WARNING("Unknown justification");
+ return stylehint_just_LeftFlush;
+ }
+ break;
+
+ case stylehint_Weight:
+ g_object_get(tag, "weight", &intval, NULL);
+ switch(intval) {
+ case PANGO_WEIGHT_LIGHT: return -1; break;
+ case PANGO_WEIGHT_NORMAL: return 0; break;
+ case PANGO_WEIGHT_BOLD: return 1; break;
+ default: WARNING("Unknown font weight"); return 0;
+ }
+ break;
+
+ case stylehint_Size:
+ g_object_get(tag, "size", &intval, NULL);
+ return (intval/2)-14;
+ break;
+
+ case stylehint_Oblique:
+ g_object_get(tag, "style", &intval , NULL);
+ return intval == PANGO_STYLE_ITALIC ? 1 : 0;
+ break;
+
+ case stylehint_Proportional:
+ g_object_get(tag, "font-desc", &objval, NULL);
+ return objval == (GObject *)glk_data->monospace_font_desc ? 0 : 1;
+ break;
+
+ case stylehint_TextColor:
+ g_object_get(tag, "foreground-gdk", &colval, NULL);
+ return color_parse_gdk(colval);
+ break;
+
+ case stylehint_BackColor:
+ g_object_get(tag, "background-gdk", &colval, NULL);
+ return color_parse_gdk(colval);
+ break;
+
+ case stylehint_ReverseColor:
+ /* FIXME: implement this */
+ return 0;
+ break;
+
+ default:
+ WARNING("Unknown style hint");
+ }
+
+ return 0;
+}
/**
* glk_stylehint_set:
void
glk_stylehint_set(glui32 wintype, glui32 styl, glui32 hint, glsi32 val)
{
- gchar *tag_name = get_tag_name(styl);
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
- /* Iterate over all the window and update their styles if nessecary */
- winid_t win;
- for(win = glk_window_iterate(NULL, NULL); win; win = glk_window_iterate(win, NULL)) {
- if(wintype != wintype_TextBuffer)
- continue; /* FIXME: add support for text grid windows */
+ if( G_UNLIKELY(!chimara_style_initialized) ) {
+ style_init();
+ }
- if(wintype == wintype_AllTypes || glk_window_get_type(win) == wintype) {
- GtkWidget *textview = win->widget;
- GtkTextBuffer *textbuffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(textview) );
- GtkTextTagTable *table = gtk_text_buffer_get_tag_table(textbuffer);
- GtkTextTag *to_change = gtk_text_tag_table_lookup(table, tag_name);
+ GtkTextTag *to_change;
+ if(wintype == wintype_TextBuffer || wintype == wintype_AllTypes) {
+ to_change = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
+ apply_stylehint_to_tag(to_change, hint, val);
+ }
- apply_stylehint_to_tag(to_change, hint, val);
- }
+ if(wintype == wintype_TextGrid || wintype == wintype_AllTypes) {
+ to_change = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
+ apply_stylehint_to_tag(to_change, hint, val);
}
}
void
glk_stylehint_clear(glui32 wintype, glui32 styl, glui32 hint)
{
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+ GtkTextTag *tag;
+
+ switch(wintype) {
+ case wintype_TextBuffer:
+ tag = g_hash_table_lookup( glk_data->default_styles->text_buffer, get_tag_name(styl) );
+ glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
+ break;
+ case wintype_TextGrid:
+ tag = g_hash_table_lookup( glk_data->default_styles->text_grid, get_tag_name(styl) );
+ glk_stylehint_set( wintype, styl, hint, query_tag(tag, hint) );
+ default:
+ return;
+ }
}
glui32
glui32
glk_style_measure(winid_t win, glui32 styl, glui32 hint, glui32 *result)
{
- return FALSE;
+ ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+ GtkTextTag *tag;
+
+ switch(win->type) {
+ case wintype_TextBuffer:
+ tag = g_hash_table_lookup( glk_data->current_styles->text_buffer, get_tag_name(styl) );
+ *result = query_tag(tag, hint);
+ break;
+ case wintype_TextGrid:
+ tag = g_hash_table_lookup( glk_data->current_styles->text_grid, get_tag_name(styl) );
+ *result = query_tag(tag, hint);
+ default:
+ return FALSE;
+ }
+
+ return TRUE;
}
projects / rodin / chimara.git / blobdiff