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expand bounding box of all objects by 0.5 before computing intersection for render cycle; alter debug output

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This commit is contained in:
Paul Davis 2013-10-24 17:14:12 -04:00
parent c21ed2b877
commit c3f1369cfd
2 changed files with 28 additions and 12 deletions
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17
libs/canvas/group.cc
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@ -88,7 +88,7 @@ Group::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
if (!(*i)->visible ()) {
#ifdef CANVAS_DEBUG
if (DEBUG_ENABLED(PBD::DEBUG::CanvasRender)) {
// cerr << _canvas->render_indent() << "Item " << (*i)->whatami() << " [" << (*i)->name << "] invisible - skipped\n";
cerr << _canvas->render_indent() << "Item " << (*i)->whatami() << " [" << (*i)->name << "] invisible - skipped\n";
}
#endif
continue;
@ -104,15 +104,24 @@ Group::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
#endif
continue;
}
Rect item = (*i)->item_to_window (item_bbox.get());
item.expand (0.5);
boost::optional<Rect> draw = item.intersection (area);
if (draw) {
#ifdef CANVAS_DEBUG
if (DEBUG_ENABLED(PBD::DEBUG::CanvasRender)) {
cerr << string_compose ("%1render %2 %3 item = %4 intersect = %5\n", _canvas->render_indent(), (*i)->whatami(),
(*i)->name, item, draw.get());
cerr << _canvas->render_indent() << " render "
<< ' '
<< (*i)->whatami()
<< ' '
<< (*i)->name
<< " item = "
<< item
<< " intersect = "
<< draw.get()
<< endl;
}
#endif