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[rodin/chimara.git] / libchimara / style.c
diff --git a/libchimara/style.c b/libchimara/style.c
index 5b388f1032e78fb66796627e9b780f502966696b..5c639cc0481842fa04f4d2e5c418b4102ce588a8 100644 (file)
--- a/libchimara/style.c
+++ b/libchimara/style.c
@@ -9,7 +9,7 @@ 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);
+GtkTextTag* gtk_text_tag_copy(GtkTextTag *tag);
 
 /**
  * glk_set_style:
@@ -84,6 +84,8 @@ style_init_textbuffer(GtkTextBuffer *buffer)
        if( G_UNLIKELY(!glk_data->style_initialized) ) {
                style_init();
        }
+
+       /* Copy the current text tags to the textbuffer's tag table */
        g_hash_table_foreach(glk_data->current_styles->text_buffer, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
 }
 
@@ -97,6 +99,8 @@ style_init_textgrid(GtkTextBuffer *buffer)
        if( G_UNLIKELY(!glk_data->style_initialized) ) {
                style_init();
        }
+
+       /* Copy the current text tags to the textgrid's tag table */
        g_hash_table_foreach(glk_data->current_styles->text_grid, style_add_tag_to_textbuffer, gtk_text_buffer_get_tag_table(buffer));
 }
 
@@ -119,7 +123,7 @@ style_table_copy(gpointer key, gpointer tag, gpointer target_table)
 }
 
 /* Internal function that copies a text tag */
-static GtkTextTag*
+GtkTextTag*
 gtk_text_tag_copy(GtkTextTag *tag)
 {
        GtkTextTag *copy;
@@ -153,8 +157,11 @@ gtk_text_tag_copy(GtkTextTag *tag)
                _COPY_FLAG (language_set);
        #undef _COPY_FLAG
 
-       /* Copy the reverse_color attribute, that was added manually */
-       g_object_set_data( G_OBJECT(copy), "reverse_color", g_object_get_data(G_OBJECT(tag), "reverse_color") );
+       /* Copy the data that was added manually */
+       gpointer reverse_color = g_object_get_data( G_OBJECT(tag), "reverse_color" );
+
+       if(reverse_color)
+               g_object_set_data( G_OBJECT(copy), "reverse_color", reverse_color );
 
        return copy;
 }
@@ -164,10 +171,10 @@ 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);
+       GHashTable *default_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_object_unref);
+       GHashTable *default_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_object_unref);
+       GHashTable *current_text_grid_styles = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_object_unref);
+       GHashTable *current_text_buffer_styles = g_hash_table_new_full(g_str_hash, g_str_equal, NULL, g_object_unref);
        GtkTextTag *tag;
 
        /* Create the CSS file scanner */
@@ -183,8 +190,10 @@ style_init()
        scanner->config->cpair_comment_single = NULL;
        scanner->config->scan_float = FALSE;
 
-       /* Initialise the default styles */
-       g_hash_table_insert(default_text_grid_styles, "normal", gtk_text_tag_new("normal"));
+       /* Initialise the default styles for a text grid */
+       tag = gtk_text_tag_new("normal");
+       g_object_set(tag, "font-desc", glk_data->monospace_font_desc, NULL);
+       g_hash_table_insert(default_text_grid_styles, "normal", tag);
 
        tag = gtk_text_tag_new("emphasized");
        g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
@@ -195,11 +204,11 @@ style_init()
        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_object_set(tag, "weight", PANGO_WEIGHT_BOLD, NULL);
        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_object_set(tag, "weight", PANGO_WEIGHT_BOLD, NULL);
        g_hash_table_insert(default_text_grid_styles, "subheader", tag);
 
        tag = gtk_text_tag_new("alert");
@@ -211,14 +220,59 @@ style_init()
        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_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
        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_foreach(default_text_grid_styles, style_table_copy, default_text_buffer_styles);
+       tag = gtk_text_tag_new("hyperlink");
+       g_object_set(tag, "foreground", "#0000ff", "underline", PANGO_UNDERLINE_SINGLE, "underline-set", TRUE, NULL);
+       g_hash_table_insert(default_text_grid_styles, "hyperlink", tag);
+
+       /* Tags for the textbuffer */
+       tag = gtk_text_tag_new("normal");
+       g_object_set(tag, "font-desc", glk_data->default_font_desc, NULL);
+       g_hash_table_insert(default_text_buffer_styles, "normal", tag);
+
+       tag = gtk_text_tag_new("emphasized");
+       g_object_set(tag, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
+       g_hash_table_insert(default_text_buffer_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(default_text_buffer_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(default_text_buffer_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(default_text_buffer_styles, "subheader", tag);
+
+       tag = gtk_text_tag_new("alert");
+       g_object_set(tag, "foreground", "#aa0000", "weight", PANGO_WEIGHT_BOLD, NULL);
+       g_hash_table_insert(default_text_buffer_styles, "alert", tag);
+
+       tag = gtk_text_tag_new("note");
+       g_object_set(tag, "foreground", "#aaaa00", "weight", PANGO_WEIGHT_BOLD, NULL);
+       g_hash_table_insert(default_text_buffer_styles, "note", tag);
+
+       tag = gtk_text_tag_new("block-quote");
+       g_object_set(tag, "justification", GTK_JUSTIFY_CENTER, "style", PANGO_STYLE_ITALIC, "style-set", TRUE, NULL);
+       g_hash_table_insert(default_text_buffer_styles, "block-quote", tag);
+
+       g_hash_table_insert(default_text_buffer_styles, "input", gtk_text_tag_new("input"));
+       g_hash_table_insert(default_text_buffer_styles, "user1", gtk_text_tag_new("user1"));
+       g_hash_table_insert(default_text_buffer_styles, "user2", gtk_text_tag_new("user2"));
+
+       tag = gtk_text_tag_new("hyperlink");
+       g_object_set(tag, "foreground", "#0000ff", "underline", PANGO_UNDERLINE_SINGLE, "underline-set", TRUE, NULL);
+       g_hash_table_insert(default_text_buffer_styles, "hyperlink", tag);
+
+
        glk_data->default_styles->text_grid = default_text_grid_styles;
        glk_data->default_styles->text_buffer = default_text_buffer_styles;
 
@@ -774,3 +828,33 @@ glk_style_measure(winid_t win, glui32 styl, glui32 hint, glui32 *result)
 
        return TRUE;
 }
+
+/* Internal function returning the current default font for a window type
+ * This can be used later for size calculations. Only wintype_TextGrid and wintype_TextBuffer are
+ * supported for now */
+PangoFontDescription*
+get_current_font(guint32 wintype)
+{
+       ChimaraGlkPrivate *glk_data = g_private_get(glk_data_key);
+       GtkTextTag *normal;
+
+       if( G_UNLIKELY(!glk_data->style_initialized) ) {
+               style_init();
+       }
+
+       switch(wintype) {
+       case wintype_TextGrid:
+               normal = g_hash_table_lookup(glk_data->current_styles->text_grid, "normal");
+               break;
+       case wintype_TextBuffer:
+               normal = g_hash_table_lookup(glk_data->current_styles->text_buffer, "normal");
+               break;
+       default:
+               return NULL;
+       }
+
+       PangoFontDescription *font;
+       g_object_get( G_OBJECT(normal), "font-desc", &font, NULL );
+
+       return font;
+}
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