using namespace std;
using namespace ArdourCanvas;
-PolyItem::PolyItem (Group* parent)
- : Item (parent)
- , Outline (parent)
+PolyItem::PolyItem (Canvas* c)
+ : Item (c)
{
+}
+PolyItem::PolyItem (Item* parent)
+ : Item (parent)
+{
}
void
PolyItem::compute_bounding_box () const
{
- bool have_one = false;
- Rect bbox;
- for (Points::const_iterator i = _points.begin(); i != _points.end(); ++i) {
- if (have_one) {
+ if (!_points.empty()) {
+
+ Rect bbox;
+ Points::const_iterator i = _points.begin();
+
+ bbox.x0 = bbox.x1 = i->x;
+ bbox.y0 = bbox.y1 = i->y;
+
+ ++i;
+
+ while (i != _points.end()) {
bbox.x0 = min (bbox.x0, i->x);
bbox.y0 = min (bbox.y0, i->y);
bbox.x1 = max (bbox.x1, i->x);
bbox.y1 = max (bbox.y1, i->y);
- } else {
- bbox.x0 = bbox.x1 = i->x;
- bbox.y0 = bbox.y1 = i->y;
- have_one = true;
+ ++i;
}
- }
+
+ _bounding_box = bbox.expand (_outline_width + 0.5);
- if (!have_one) {
- _bounding_box = boost::optional<Rect> ();
} else {
- _bounding_box = bbox.expand (_outline_width / 2);
+ _bounding_box = Rect ();
}
-
+
_bounding_box_dirty = false;
}
Duple c2 = item_to_window (Duple (cp2->x, cp2->y));
c = item_to_window (Duple (p->x, p->y));
-
- context->curve_to (c1.x + pixel_adjust,
- c1.y + pixel_adjust,
- c2.x + pixel_adjust,
- c2.y + pixel_adjust,
- c.x + pixel_adjust,
+
+ context->curve_to (c1.x + pixel_adjust,
+ c1.y + pixel_adjust,
+ c2.x + pixel_adjust,
+ c2.y + pixel_adjust,
+ c.x + pixel_adjust,
c.y + pixel_adjust);
-
+
++cp1;
++cp2;
++p;
void
PolyItem::set (Points const & points)
{
- begin_change ();
-
- _points = points;
-
- _bounding_box_dirty = true;
- end_change ();
+ if (_points != points) {
+
+ begin_change ();
+
+ _points = points;
+
+ _bounding_box_dirty = true;
+ end_change ();
+ }
}
Points const &