#include <gtk/gtk.h>

int main (int argc, char **argv)
{
GtkWidget *window, *text;
GtkTextBuffer *buffer;
GtkTextIter iter;
GdkColor color;

gtk_init (&argc, &argv);

window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (window), 200, 100);

text = gtk_text_view_new ();
gtk_container_add (GTK_CONTAINER (window), text);
gtk_text_view_set_editable (GTK_TEXT_VIEW (text), FALSE);
gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text), FALSE);
gtk_text_view_set_justification (GTK_TEXT_VIEW (text), GTK_JUSTIFY_LEFT);
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text), GTK_WRAP_WORD);
gtk_widget_show (text);

gdk_color_parse ("yellow", &color);
gtk_widget_modify_base (text, GTK_STATE_NORMAL, &color);
gtk_widget_modify_base (text, GTK_STATE_ACTIVE, &color);
gtk_widget_modify_base (text, GTK_STATE_PRELIGHT, &color);
gtk_widget_modify_base (text, GTK_STATE_SELECTED, &color);
gtk_widget_modify_base (text, GTK_STATE_INSENSITIVE, &color);

buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));

gdk_color_parse ("blue", &color);
gtk_text_buffer_create_tag (buffer, "color_blue", "foreground-gdk", &color, NULL);
gdk_color_parse ("red", &color);
gtk_text_buffer_create_tag (buffer, "color_red", "foreground-gdk", &color, NULL);

gtk_text_buffer_create_tag (buffer, "style_italic", "style", PANGO_STYLE_ITALIC, NULL);
gtk_text_buffer_create_tag (buffer, "weight_bold", "weight", PANGO_WEIGHT_BOLD, NULL);
gtk_text_buffer_create_tag (buffer, "size_medium", "scale", PANGO_SCALE_MEDIUM, NULL);
gtk_text_buffer_create_tag (buffer, "size_large", "scale", PANGO_SCALE_LARGE, NULL);

gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, "Hello", -1,
"size_medium", "style_italic", "color_blue", NULL);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter, "World!", -1,
"size_large", "weight_bold", "color_red", NULL);

gtk_widget_show (window);

gtk_main ();
return 0;
}