int gt_layout_sketch(GtLayout *layout, GtCanvas *target_canvas, GtError *err)
{
int had_err = 0;
unsigned long i;
GtRenderTraverseInfo rti;
gt_assert(layout && target_canvas);
had_err = layout_all_tracks(layout, err);
if (!had_err) {
rti.layout = layout;
rti.canvas = target_canvas;
had_err = gt_canvas_visit_layout_pre(target_canvas, layout, err);
if (had_err) return had_err;
if (layout->track_ordering_func == NULL) {
had_err = gt_hashmap_foreach_in_key_order(layout->tracks, render_tracks,
&rti, err);
} else {
had_err = gt_hashmap_foreach_ordered(layout->tracks, render_tracks,
&rti, (GtCompare) track_cmp_wrapper,
err);
}
if (had_err) return had_err;
had_err = gt_canvas_visit_layout_post(target_canvas, layout, err);
if (had_err) return had_err;
for (i=0;i<gt_array_size(layout->custom_tracks);i++)
{
GtCustomTrack *ct = *(GtCustomTrack**) gt_array_get(layout->custom_tracks,
i);
had_err = render_custom_tracks(NULL, ct, &rti, err);
}
}
return had_err ? -1 : 0;
}
int gt_layout_sketch(GtLayout *layout, GtCanvas *target_canvas, GtError *err)
{
int had_err = 0;
unsigned long i;
GtRenderTraverseInfo rti;
gt_assert(layout && target_canvas);
rti.layout = layout;
rti.canvas = target_canvas;
had_err = gt_canvas_visit_layout_pre(target_canvas, layout, err);
if (had_err) return had_err;
had_err = gt_hashmap_foreach_in_key_order(layout->tracks, render_tracks,
&rti, err);
if (had_err) return had_err;
had_err = gt_canvas_visit_layout_post(target_canvas, layout, err);
if (had_err) return had_err;
for (i=0;i<gt_array_size(layout->custom_tracks);i++)
{
GtCustomTrack *ct = *(GtCustomTrack**) gt_array_get(layout->custom_tracks,
i);
had_err = render_custom_tracks(NULL, ct, &rti, err);
}
return had_err;
}