gtk2/demos/gtk-demo/markup.c

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/* Text View/Markup
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*
* GtkTextBuffer lets you define your own tags that can influence
* text formatting in a variety of ways. In this example, we show
* that GtkTextBuffer can load Pango markup and automatically generate
* suitable tags.
*/
#include <gtk/gtk.h>
GtkWidget *
do_markup (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkWidget *view;
GtkWidget *sw;
GtkTextBuffer *buffer;
GtkTextIter iter;
GBytes *bytes;
const gchar *markup;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_screen (GTK_WINDOW (window),
gtk_widget_get_screen (do_widget));
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gtk_window_set_default_size (GTK_WINDOW (window), 450, 450);
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g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
gtk_window_set_title (GTK_WINDOW (window), "Markup");
view = gtk_text_view_new ();
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 10);
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 10);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC);
gtk_container_add (GTK_CONTAINER (window), sw);
gtk_container_add (GTK_CONTAINER (sw), view);
bytes = g_resources_lookup_data ("/markup/markup.txt", 0, NULL);
markup = (const gchar *)g_bytes_get_data (bytes, NULL);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_insert_markup (buffer, &iter, markup, -1);
g_bytes_unref (bytes);
gtk_widget_show_all (sw);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}