IntCoord ComboBox::calculateListPosition()
{
int length = 0;
if (mFlowDirection.isVertical())
length = mList->getOptimalHeight();
else
length = mMaxListLength;
if (mMaxListLength > 0 && length > mMaxListLength)
length = mMaxListLength;
// берем глобальные координаты выджета
IntCoord coord = getAbsoluteCoord();
// размер леера
IntSize sizeView = mList->getParentSize();
if (mFlowDirection == FlowDirection::TopToBottom)
{
if ((coord.bottom() + length) <= sizeView.height)
coord.top += coord.height;
else
coord.top -= length;
coord.height = length;
}
else if (mFlowDirection == FlowDirection::BottomToTop)
{
if ((coord.top - length) >= 0)
coord.top -= length;
else
coord.top += coord.height;
coord.height = length;
}
else if (mFlowDirection == FlowDirection::LeftToRight)
{
if ((coord.right() + length) <= sizeView.width)
coord.left += coord.width;
else
coord.left -= length;
coord.width = length;
}
else if (mFlowDirection == FlowDirection::RightToLeft)
{
if ((coord.left - length) >= 0)
coord.left -= length;
else
coord.left += coord.width;
coord.width = length;
}
return coord;
}
VectorFloatPoint cropPolygon(FloatPoint* _baseVerticiesPos, size_t _size, const IntCoord& _cropRectangle)
{
VectorFloatPoint resultVerticiesPos;
resultVerticiesPos.resize(_size);
for (size_t i = 0; i < _size; ++i)
{
resultVerticiesPos[i] = _baseVerticiesPos[i];
}
cropPolygonSide(resultVerticiesPos, _cropRectangle.left, Left);
cropPolygonSide(resultVerticiesPos, _cropRectangle.right(), Right);
cropPolygonSide(resultVerticiesPos, _cropRectangle.top, Top);
cropPolygonSide(resultVerticiesPos, _cropRectangle.bottom(), Bottom);
return resultVerticiesPos;
}
