void Viewport::paintEvent(QPaintEvent*)
{
+ typedef void (ViewItem::*LayerPaintFunc)(
+ QPainter &p, ViewItemPaintParams &pp);
+ LayerPaintFunc layer_paint_funcs[] = {
+ &ViewItem::paint_back, &ViewItem::paint_mid,
+ &ViewItem::paint_fore, nullptr};
+
vector< shared_ptr<RowItem> > row_items(view_.list_by_type<RowItem>());
assert(none_of(row_items.begin(), row_items.end(),
[](const shared_ptr<RowItem> &r) { return !r; }));
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);
- const ViewItemPaintParams pp(rect(), view_.scale(), view_.offset());
-
- for (const shared_ptr<TimeItem> t : time_items)
- t->paint_back(p, pp);
- for (const shared_ptr<RowItem> r : row_items)
- r->paint_back(p, pp);
+ for (LayerPaintFunc *paint_func = layer_paint_funcs;
+ *paint_func; paint_func++) {
+ ViewItemPaintParams time_pp(rect(), view_.scale(), view_.offset());
+ for (const shared_ptr<TimeItem> t : time_items)
+ (t.get()->*(*paint_func))(p, time_pp);
- for (const shared_ptr<TimeItem> t : time_items)
- t->paint_mid(p, pp);
- for (const shared_ptr<RowItem> r : row_items)
- r->paint_mid(p, pp);
-
- for (const shared_ptr<RowItem> r : row_items)
- r->paint_fore(p, pp);
-
- p.setRenderHint(QPainter::Antialiasing, false);
- for (const shared_ptr<TimeItem> t : time_items)
- t->paint_fore(p, pp);
+ ViewItemPaintParams row_pp(rect(), view_.scale(), view_.offset());
+ for (const shared_ptr<RowItem> r : row_items)
+ (r.get()->*(*paint_func))(p, row_pp);
+ }
p.end();
}