SetCenter
void SetCenter(const BPoint& center);
void SetCenter(float cx, float cy);
void SetCenter(const BPoint& center);
void SetCenter(float cx, float cy);
void SetCenter(const BPoint& center);
void SetCenter(float cx, float cy);
void SetCenter(const BPoint& center);
void SetCenter(float cx, float cy);
gradient.SetCenter(BPoint(170, 60));
gradient.SetCenter(BPoint(170, 170));
gradient.SetCenter(BPoint(170, 280));
gradient.SetCenter(BPoint(170, 390));
gradient.SetCenter(BPoint(170, 60));
gradient.SetCenter(BPoint(170, 170));
gradient.SetCenter(BPoint(170, 280));
gradient.SetCenter(BPoint(170, 390));
gradient.SetCenter(BPoint(170, 60));
gradient.SetCenter(BPoint(170, 170));
gradient.SetCenter(BPoint(170, 280));
gradient.SetCenter(BPoint(170, 390));
gradient.SetCenter(BPoint(170, 60));
gradient.SetCenter(BPoint(170, 170));
gradient.SetCenter(BPoint(170, 280));
gradient.SetCenter(BPoint(170, 390));
radial->SetCenter(center);
radialFocus->SetCenter(center);
diamond->SetCenter(center);
conic->SetCenter(center);
radial->SetCenter(center);
radialFocus->SetCenter(center);
diamond->SetCenter(center);
conic->SetCenter(center);