-\f
-
-struct xr_table_state
- {
- struct xr_render_fsm fsm;
- struct render_pager *p;
- };
-
-static bool
-xr_table_render (struct xr_render_fsm *fsm, struct xr_driver *xr)
-{
- struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm);
-
- while (render_pager_has_next (ts->p))
- {
- int used;
-
- used = render_pager_draw_next (ts->p, xr->length - xr->y);
- if (!used)
- {
- assert (xr->y > 0);
- return true;
- }
- else
- xr->y += used;
- }
- return false;
-}
-
-static void
-xr_table_destroy (struct xr_render_fsm *fsm)
-{
- struct xr_table_state *ts = UP_CAST (fsm, struct xr_table_state, fsm);
-
- render_pager_destroy (ts->p);
- free (ts);
-}
-
-static struct xr_render_fsm *
-xr_render_table (struct xr_driver *xr, struct table_item *table_item)
-{
- struct xr_table_state *ts;
-
- ts = xmalloc (sizeof *ts);
- ts->fsm.render = xr_table_render;
- ts->fsm.destroy = xr_table_destroy;
-
- if (xr->y > 0)
- xr->y += xr->char_height;
-
- ts->p = render_pager_create (xr->params, table_item);
- table_item_unref (table_item);
-
- return &ts->fsm;
-}
-\f
-struct xr_chart_state
- {
- struct xr_render_fsm fsm;
- struct chart_item *chart_item;
- };
-
-static bool
-xr_chart_render (struct xr_render_fsm *fsm, struct xr_driver *xr)
-{
- struct xr_chart_state *cs = UP_CAST (fsm, struct xr_chart_state, fsm);
-
- const int chart_height = 0.8 * (xr->length < xr->width ? xr->length : xr->width);
-
- if (xr->y > xr->length - chart_height)
- return true;
-
- if (xr->cairo != NULL)
- {
- xr_draw_chart (cs->chart_item, xr->cairo,
- 0.0,
- xr_to_pt (xr->y),
- xr_to_pt (xr->width),
- xr_to_pt (chart_height));
- }
- xr->y += chart_height;
-
- return false;
-}
-
-static void
-xr_chart_destroy (struct xr_render_fsm *fsm)
-{
- struct xr_chart_state *cs = UP_CAST (fsm, struct xr_chart_state, fsm);
-
- chart_item_unref (cs->chart_item);
- free (cs);
-}
-
-static struct xr_render_fsm *
-xr_render_chart (const struct chart_item *chart_item)
-{
- struct xr_chart_state *cs;
-
- cs = xmalloc (sizeof *cs);
- cs->fsm.render = xr_chart_render;
- cs->fsm.destroy = xr_chart_destroy;
- cs->chart_item = chart_item_ref (chart_item);
-
- return &cs->fsm;
-}
-\f
-static bool
-xr_eject_render (struct xr_render_fsm *fsm UNUSED, struct xr_driver *xr)
-{
- return xr->y > 0;
-}
-
-static void
-xr_eject_destroy (struct xr_render_fsm *fsm UNUSED)
-{
- /* Nothing to do. */
-}
-
-static struct xr_render_fsm *
-xr_render_eject (void)
-{
- static struct xr_render_fsm eject_renderer =
- {
- xr_eject_render,
- xr_eject_destroy
- };
-
- return &eject_renderer;
-}
-\f
-static struct xr_render_fsm *
-xr_render_text (struct xr_driver *xr, const struct text_item *text_item)
-{
- enum text_item_type type = text_item_get_type (text_item);
-
- switch (type)
- {
- case TEXT_ITEM_PAGE_TITLE:
- break;
-
- default:
- return xr_render_table (
- xr, text_item_to_table_item (text_item_ref (text_item)));
- }
-
- return NULL;
-}
-
-static struct xr_render_fsm *
-xr_render_message (struct xr_driver *xr,
- const struct message_item *message_item)
-{
- char *s = msg_to_string (message_item_get_msg (message_item));
- struct text_item *item = text_item_create (TEXT_ITEM_LOG, s);
- free (s);
- return xr_render_table (xr, text_item_to_table_item (item));
-}
-
-static struct xr_render_fsm *
-xr_render_output_item (struct xr_driver *xr,
- const struct output_item *output_item)
-{
- if (is_table_item (output_item))
- return xr_render_table (xr, table_item_ref (to_table_item (output_item)));
- else if (is_chart_item (output_item))
- return xr_render_chart (to_chart_item (output_item));
- else if (is_text_item (output_item))
- return xr_render_text (xr, to_text_item (output_item));
- else if (is_page_eject_item (output_item))
- return xr->y > 0 ? xr_render_eject () : NULL;
- else if (is_message_item (output_item))
- return xr_render_message (xr, to_message_item (output_item));
- else
- return NULL;
-}