void
foreach_gxps_page (const gchar *xps_filename, GXPSPageFunc page_func, gpointer data)
{
GError *error = NULL;
GFile *gfile = g_file_new_for_commandline_arg (xps_filename);
GXPSFile *file = gxps_file_new (gfile, &error);
if (file == NULL)
rerror ("Unable to open %s: %s", xps_filename, error->message);
GXPSDocument *doc = gxps_file_get_document (file, 0, &error);
if (doc == NULL)
rerror ("Unable to open %s: %s", xps_filename, error->message);
gint page_count = gxps_document_get_n_pages (doc);
xps_range_set_min (range, 1);
xps_range_set_max (range, page_count);
if (xps_range_is_empty (range)) xps_range_append (range, 1, page_count, 1);
gint pi;
XpsRangeIter iter;
xps_range_iter_init (&iter, range);
while (xps_range_iter_next (&iter, &pi)) {
GXPSPage *page = gxps_document_get_page (doc, pi-1, &error);
gdouble width, height;
gxps_page_get_size (page, &width, &height);
page_func (page, width, height, data);
g_object_unref (page);
}
}
static void
page_changed_callback (GtkSpinButton *button,
GXPSView *view)
{
GXPSPage *xps_page;
gint page;
gdouble width, height;
cairo_t *cr;
GError *error = NULL;
page = gtk_spin_button_get_value_as_int (button);
xps_page = gxps_document_get_page (view->doc, page, &error);
if (error) {
g_printerr ("Error getting page %d: %s\n", page, error->message);
g_error_free (error);
return;
}
gxps_page_get_size (xps_page, &width, &height);
cairo_surface_destroy (view->surface);
view->surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
width, height);
cr = cairo_create (view->surface);
gxps_page_render (xps_page, cr, &error);
if (error) {
g_printerr ("Error rendering page: %d: %s\n", page, error->message);
g_error_free (error);
}
cairo_destroy (cr);
gtk_widget_set_size_request (view->darea, width, height);
gtk_widget_queue_draw (view->darea);
g_object_unref (xps_page);
}
