Degree RollLayout::GetScrollDirection() const
{
Degree scrollDirection(0.0f);
if (mOrientation == ControlOrientation::Up)
{
scrollDirection = 0.0f;
}
else if (mOrientation == ControlOrientation::Left)
{
scrollDirection = 90.0f;
}
else if (mOrientation == ControlOrientation::Down)
{
scrollDirection = 180.0f;
}
else // mOrientation == ControlOrientation::Right
{
scrollDirection = 270.0f;
}
return scrollDirection;
}
void HgGridContainer::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
HgContainer::paint(painter, option, widget);
// Draw these only while pinching
if(mPinchingOngoing)
{
const QPen& oldPen = painter->pen();
// dim the background, i.e. draw trasparent black screen-sized rect (alpha is 100 of 255)
painter->fillRect(rect(), QColor(0, 0, 0, 100));
QPen pen = painter->pen();
pen.setColor(Qt::white);
pen.setWidth(4);
painter->setPen(pen);
int imageXCount;
int imageYCount;
int widthSpacingPlusImage;
int heightSpacingPlusImage;
// Use temp values that are updated during pinching
QSize imageSize(mTempImageHeightForLineGrid, mTempImageHeightForLineGrid);
if (scrollDirection() == Qt::Horizontal ) //landscape mode
{
imageXCount = rect().width() / imageSize.width();
imageYCount = mTempRowCount;
widthSpacingPlusImage = mRenderer->getSpacing().height() + imageSize.height();
heightSpacingPlusImage = mRenderer->getSpacing().width() + imageSize.width();
}
else //portrait mode
{
imageXCount = mTempRowCount;
imageYCount = rect().height() / imageSize.height();
widthSpacingPlusImage = mRenderer->getSpacing().width() + imageSize.width();
heightSpacingPlusImage = mRenderer->getSpacing().height() + imageSize.height();
}
int yOffset(0);
if (scrollDirection() == Qt::Horizontal ) {
yOffset = (rect().height() - (mUserItemSize.height()*mHorizontalRowCount))/2;
}
for (int xCounter = 0; xCounter < (imageXCount+1); ++xCounter)
{
for (int yCounter = 0; yCounter < (imageYCount+1); ++yCounter)
{
painter->drawLine(QPoint(0, yOffset + yCounter * heightSpacingPlusImage),
QPoint(rect().width(), yOffset + yCounter * heightSpacingPlusImage));
}
painter->drawLine(QPoint(xCounter * widthSpacingPlusImage, yOffset),
QPoint(xCounter * widthSpacingPlusImage, rect().height()-yOffset));
}
painter->setPen(oldPen);
}
updateSelectedItem();
}
