/**
* gtk_print_operation_preview_end_preview:
* @preview: a #GtkPrintOperationPreview
*
* Ends a preview.
*
* This function must be called to finish a custom print preview.
*
* Since: 2.10
*/
void
gtk_print_operation_preview_end_preview (GtkPrintOperationPreview *preview)
{
g_return_if_fail (GTK_IS_PRINT_OPERATION_PREVIEW (preview));
GTK_PRINT_OPERATION_PREVIEW_GET_IFACE (preview)->end_preview (preview);
}
/**
* gtk_print_operation_preview_is_selected:
* @preview: a #GtkPrintOperationPreview
* @page_nr: a page number
*
* Returns whether the given page is included in the set of pages that
* have been selected for printing.
*
* Returns: %TRUE if the page has been selected for printing
*
* Since: 2.10
*/
gboolean
gtk_print_operation_preview_is_selected (GtkPrintOperationPreview *preview,
gint page_nr)
{
g_return_val_if_fail (GTK_IS_PRINT_OPERATION_PREVIEW (preview), FALSE);
return GTK_PRINT_OPERATION_PREVIEW_GET_IFACE (preview)->is_selected (preview, page_nr);
}
/**
* gtk_print_operation_preview_render_page:
* @preview: a #GtkPrintOperationPreview
* @page_nr: the page to render
*
* Renders a page to the preview, using the print context that
* was passed to the GtkPrintOperation::preview handler together
* with @preview.
*
* Note that this function requires a suitable cairo context to
* be associated with the print context.
*
* Since: 2.10
*/
void
gtk_print_operation_preview_render_page (GtkPrintOperationPreview *preview,
gint page_nr)
{
g_return_if_fail (GTK_IS_PRINT_OPERATION_PREVIEW (preview));
GTK_PRINT_OPERATION_PREVIEW_GET_IFACE (preview)->render_page (preview,
page_nr);
}
GtkWidget *
soli_print_preview_new (GtkPrintOperation *operation,
GtkPrintOperationPreview *gtk_preview,
GtkPrintContext *context)
{
SoliPrintPreview *preview;
cairo_surface_t *surface;
cairo_t *cr;
gdouble dpi_x, dpi_y;
g_return_val_if_fail (GTK_IS_PRINT_OPERATION (operation), NULL);
g_return_val_if_fail (GTK_IS_PRINT_OPERATION_PREVIEW (gtk_preview), NULL);
preview = g_object_new (SOLI_TYPE_PRINT_PREVIEW, NULL);
preview->operation = g_object_ref (operation);
preview->gtk_preview = g_object_ref (gtk_preview);
preview->context = g_object_ref (context);
/* FIXME: is this legal?? */
gtk_print_operation_set_unit (operation, GTK_UNIT_POINTS);
g_signal_connect_object (gtk_preview,
"ready",
G_CALLBACK (preview_ready),
preview,
0);
/* FIXME: we need a cr to paginate... but we can't get the drawing
* area surface because it's not there yet... for now I create
* a dummy pdf surface.
* gtk_print_context_set_cairo_context() should be called in the
* got-page-size handler.
*/
surface = create_preview_surface (preview, &dpi_x, &dpi_y);
cr = cairo_create (surface);
gtk_print_context_set_cairo_context (context, cr, dpi_x, dpi_y);
cairo_destroy (cr);
cairo_surface_destroy (surface);
return GTK_WIDGET (preview);
}
