connect(_cursors.second().get(), SIGNAL(time_changed()),
this, SLOT(marker_time_changed()));
- connect(_header, SIGNAL(geometry_updated()),
- this, SLOT(on_geometry_updated()));
connect(_header, SIGNAL(signals_moved()),
this, SLOT(on_signals_moved()));
connect(this, SIGNAL(hover_point_changed()),
this, SLOT(on_hover_point_changed()));
+ connect(&_lazy_event_handler, SIGNAL(timeout()),
+ this, SLOT(process_sticky_events()));
+ _lazy_event_handler.setSingleShot(true);
+
setViewport(_viewport);
_viewport->installEventFilter(this);
return -_v_offset;
}
+unsigned int View::depth() const
+{
+ return 0;
+}
+
void View::zoom(double steps)
{
zoom(steps, _viewport->width() / 2);
return _hover_point;
}
-void View::normalize_layout()
-{
- int v_min = INT_MAX;
- for (const shared_ptr<RowItem> r : *this)
- v_min = min(r->v_offset(), v_min);
-
- const int delta = -min(v_min, 0);
- for (shared_ptr<RowItem> r : *this)
- r->set_v_offset(r->v_offset() + delta);
-
- verticalScrollBar()->setSliderPosition(_v_offset + delta);
- v_scroll_value_changed(verticalScrollBar()->sliderPosition());
-}
-
void View::update_viewport()
{
assert(_viewport);
update_layout();
}
+void View::appearance_changed(bool label, bool content)
+{
+ if (label)
+ _header->update();
+ if (content)
+ _viewport->update();
+}
+
+void View::extents_changed(bool horz, bool vert)
+{
+ _sticky_events |=
+ (horz ? SelectableItemHExtentsChanged : 0) |
+ (vert ? SelectableItemVExtentsChanged : 0);
+ _lazy_event_handler.start();
+}
+
void View::h_scroll_value_changed(int value)
{
if (_updating_scroll)
const pair<int, int> extents = r->v_extents();
if (r->enabled())
offset += -extents.first;
- r->set_v_offset(offset);
+ r->force_to_v_offset(offset);
if (r->enabled())
offset += extents.second;
}
update_layout();
- normalize_layout();
-
- // Update the child widgets
- _header->signals_updated();
- _viewport->signals_updated();
}
void View::data_updated()
signals_moved();
}
-void View::on_geometry_updated()
+void View::process_sticky_events()
{
- update_layout();
+ if (_sticky_events & SelectableItemHExtentsChanged)
+ update_layout();
+ if (_sticky_events & SelectableItemVExtentsChanged) {
+ _viewport->update();
+ _header->update();
+ }
+
+ // Clear the sticky events
+ _sticky_events = 0;
}
void View::on_hover_point_changed()