bool MgDiamond::_draw(GiGraphics& gs, const GiContext& ctx) const
{
Point2d pts[] = { _getHandlePoint(0), _getHandlePoint(1),
_getHandlePoint(2), _getHandlePoint(3) };
bool ret = gs.drawPolygon(&ctx, 4, pts);
return __super::_draw(gs, ctx) || ret;
}
float MgDiamond::_hitTest(const Point2d& pt, float tol,
Point2d& nearpt, Int32& segment) const
{
Point2d pts[] = { _getHandlePoint(0), _getHandlePoint(1),
_getHandlePoint(2), _getHandlePoint(3) };
return mgLinesHit(4, pts, true, pt, tol, nearpt, segment);
}
void MgDiamond::_update()
{
__super::_update();
Point2d pts[] = { _getHandlePoint(0), _getHandlePoint(1),
_getHandlePoint(2), _getHandlePoint(3) };
_extent.set(4, pts);
}
bool MgDiamond::_hitTestBox(const Box2d& rect) const
{
if (!__super::_hitTestBox(rect))
return false;
for (int i = 0; i < 3; i++) {
if (Box2d(_getHandlePoint(i), _getHandlePoint(i + 1)).isIntersect(rect))
return true;
}
return false;
}
bool MgBaseRect::_setHandlePoint(int index, const Point2d& pt, float)
{
if (getFlag(kMgSquare)) {
if (isCurve() && !isEmpty(_MGZERO)) {
float olddist = _getHandlePoint(index).distanceTo(getCenter());
transform(Matrix2d::scaling(pt.distanceTo(getCenter()) / olddist, getCenter()));
}
else {
Matrix2d mat(Matrix2d::rotation(-getAngle(), getCenter()));
Point2d pt2(pt * mat);
Box2d rect(getRect());
mgnear::moveRectHandle(rect, index, pt2);
if (4 == index || 6 == index) {
rect = Box2d(rect.center(), rect.height(), rect.height());
}
else {
rect = Box2d(rect.center(), rect.width(), rect.width());
}
setRectWithAngle(rect.leftTop(), rect.rightBottom(), getAngle(),
rect.center() * mat.inverse());
}
}
else {
int index2 = index / 4 * 4 + (index % 4 + 2) % 4;
Point2d corner(_getHandlePoint(index2));
Matrix2d mat(Matrix2d::rotation(-getAngle(), corner));
Box2d rect(_getHandlePoint(0) * mat, _getHandlePoint(2) * mat);
Point2d pt2(pt * mat);
mgnear::moveRectHandle(rect, index, pt2);
setRectWithAngle(rect.leftTop(), rect.rightBottom(), getAngle(), corner);
}
update();
return true;
}
Point2d MgBaseShape::getHandlePoint(int index) const {
return _getHandlePoint(index);
}
bool MgComposite::_setHandlePoint(int index, const Point2d& pt, float)
{
return _offset(pt - _getHandlePoint(index), -1);
}
