/**
* Zooms the view in a way that the given window is visible and fills the view.
* The view is updated.
*/
void RGraphicsView::zoomTo(const RBox& window, int margin) {
if (!window.isValid()) {
return;
}
saveViewport();
RVector f(RMAXDOUBLE, RMAXDOUBLE);
double w = window.getWidth();
double h = window.getHeight();
if (w<1.0e-6 && h<1.0e-6) {
return;
}
if (w>1.0e-6) {
f.x = (getWidth() - 2 * margin) / w;
}
if (h>1.0e-6) {
f.y = (getHeight() - 2 * margin) / h;
}
f.x = f.y = qMin(f.x, f.y);
if (RSettings::getLimitZoomAndScroll() && f.x < 1.0e-9) {
//f.x = f.y = 1.0;
return;
}
setFactor(f.x);
/*
RBox viewWindow = mapToView(window);
qDebug() << "viewWindow: " << viewWindow;
RVector size = viewWindow.getSize();
RVector f;
if (size.x > 1.0e-6) {
f.x = (getWidth() - 2 * margin) / size.x;
} else {
f.x = RMAXDOUBLE;
}
if (size.y > 1.0e-6) {
f.y = (getHeight() - 2 * margin) / size.y;
} else {
f.y = RMAXDOUBLE;
}
f.x = f.y = qMin(f.x, f.y);
if (f.x < 1.0e-6 || f.x == RMAXDOUBLE) {
f.x = f.y = 1.0;
}
setFactor(factor * f.x);
*/
centerToBox(window);
}
bool RGraphicsView::zoomToSelection() {
RDocument* document = getDocument();
if (document == NULL) {
return false;
}
RBox selectionBox = document->getSelectionBox();
if (selectionBox.isValid() && (selectionBox.getWidth()>RS::PointTolerance || selectionBox.getHeight()>RS::PointTolerance)) {
zoomTo(selectionBox, getMargin());
return true;
}
return false;
}
/**
* \return The bounding box that contains this entity.
*/
RBox REntityData::getBoundingBox() const {
RBox bb;
QList<QSharedPointer<RShape> > shapes = getShapes();
for (int i=0; i<shapes.size(); i++) {
if (!bb.isValid()) {
bb = shapes.at(i)->getBoundingBox();
}
else {
bb.growToInclude(shapes.at(i)->getBoundingBox());
}
}
return bb;
}
/**
* \return List of bezier spline segments which together represent this curve.
*/
QList<RSpline> RSpline::getBezierSegments(const RBox& queryBox) const {
// spline is a single bezier segment:
if (countControlPoints()==getDegree()+1) {
return QList<RSpline>() << *this;
}
updateInternal();
QList<RSpline> ret;
#ifndef R_NO_OPENNURBS
ON_NurbsCurve* dup = dynamic_cast<ON_NurbsCurve*>(curve.DuplicateCurve());
if (dup==NULL) {
return ret;
}
dup->MakePiecewiseBezier();
for (int i=0; i<=dup->CVCount() - dup->Order(); ++i) {
ON_BezierCurve bc;
if (!dup->ConvertSpanToBezier(i, bc)) {
continue;
}
QList<RVector> ctrlPts;
for (int cpi=0; cpi<bc.CVCount(); cpi++) {
ON_3dPoint onp;
bc.GetCV(cpi, onp);
ctrlPts.append(RVector(onp.x, onp.y, onp.z));
}
RSpline bezierSegment(ctrlPts, degree);
if (!queryBox.isValid() || queryBox.intersects(bezierSegment.getBoundingBox())) {
ret.append(bezierSegment);
}
}
delete dup;
#endif
return ret;
}
