CodeDocument::Position CodeDocument::findWordBreakBefore (const Position& position) const noexcept
{
auto p = position;
const int maxDistance = 256;
int i = 0;
bool stoppedAtLineStart = false;
while (i < maxDistance)
{
auto c = p.movedBy (-1).getCharacter();
if (c == '\r' || c == '\n')
{
stoppedAtLineStart = true;
if (i > 0)
break;
}
if (! CharacterFunctions::isWhitespace (c))
break;
p.moveBy (-1);
++i;
}
if (i < maxDistance && ! stoppedAtLineStart)
{
auto type = getCharacterType (p.movedBy (-1).getCharacter());
while (i < maxDistance && type == getCharacterType (p.movedBy (-1).getCharacter()))
{
p.moveBy (-1);
++i;
}
}
return p;
}
static QList<int> bounce(QPoint & p0, QVector2D vel, QSize size, const QRectList & rectsIn)
{
QList<int> touched;
#if 0
QList<QPair<int, QRect> > rects;
QRect swept = QRect(p0, size).united(QRect(movedBy(p0, vel), size));
for (int i = 0; i < rectsIn.count(); ++i)
if (rectsIn.at(i).intersects(swept)) rects << qMakePair(i, rectsIn.at(i));
QVector2D p(p0.x(), p0.y());
QVector2D d(td.manhattanNormalize(vel));
while (vel.lengthSquared() > d.lengthSquared()) {
}
#endif
return touched;
}
void Item::moveBy( double dx, double dy )
{
KtlQCanvasPolygon::moveBy(dx,dy);
emit movedBy( dx, dy );
}
RoundRect movedBy(double _x, double _y) const { return movedBy({ _x, _y }); }
Polygon movedBy(const Vec2& v) const
{
return movedBy(v.x, v.y);
}
[[nodiscard]] constexpr Ellipse movedBy(const position_type& v) const noexcept
{
return movedBy(v.x, v.y);
}
RoundRect operator - (const Vec2& v) const { return movedBy(-v); }
Cylinder movedBy(double _x, double _y, double _z) const { return movedBy({ _x, _y, _z }); }
constexpr Line movedBy(const position_type& v) const noexcept
{
return movedBy(v.x, v.y);
}
Shape operator - (const Vec2& v) const
{
return movedBy(-v);
}
Shape operator + (const Vec2& v) const
{
return movedBy(v);
}
Shape movedBy(double x, double y) const
{
return movedBy({ x, y });
}
