int GraphicsFlowLayout::doLayout(const QRectF &rect) {
double x = rect.x();
double y = rect.y();
double lineHeight = 0;
for(int i=0; i < count(); i++) {
QGraphicsLayoutItem* item = itemAt(i);
int nextX = x + item->preferredSize().width() + spacing();
QSizePolicy policy = item->sizePolicy();
if (item->sizePolicy().horizontalPolicy() == QSizePolicy::Expanding) {
int myY = y + lineHeight + spacing() + SpaceBefore;
QRectF r(QPoint(rect.x(), myY), item->preferredSize());
item->setGeometry(r);
x = rect.x();
y = myY + item->preferredSize().height() + spacing() + SpaceAfter;
continue;
}
if (nextX - spacing() > rect.right() && lineHeight > 0) {
x = rect.x();
y = y + lineHeight + spacing();
nextX = x + item->preferredSize().width() + spacing();
lineHeight = 0;
}
item->setGeometry(QRectF(QPoint(x, y), item->preferredSize()));
x = nextX;
// item->preferredSize().height() returns qreal, armel compiler complains
lineHeight = qMax(lineHeight, (double) item->preferredSize().height());
}
m_lastWidth = rect.width();
return y + lineHeight - rect.y();
}
qreal FlowLayout::doLayout(const QRectF &geom, bool applyNewGeometry) const
{
qreal left, top, right, bottom;
getContentsMargins(&left, &top, &right, &bottom);
const qreal maxw = geom.width() - left - right;
qreal x = 0;
qreal y = 0;
qreal maxRowHeight = 0;
QSizeF pref;
for (int i = 0; i < m_items.count(); ++i) {
QGraphicsLayoutItem *item = m_items.at(i);
pref = item->effectiveSizeHint(Qt::PreferredSize);
maxRowHeight = qMax(maxRowHeight, pref.height());
qreal next_x;
next_x = x + pref.width();
if (next_x > maxw) {
if (x == 0) {
pref.setWidth(maxw);
} else {
x = 0;
next_x = pref.width();
}
y += maxRowHeight + spacing(Qt::Vertical);
maxRowHeight = 0;
}
if (applyNewGeometry)
item->setGeometry(QRectF(QPointF(left + x, top + y), pref));
x = next_x + spacing(Qt::Horizontal);
}
maxRowHeight = qMax(maxRowHeight, pref.height());
return top + y + maxRowHeight + bottom;
}
qreal QGraphicsFlowLayout::doLayout(const QRectF &rect, bool testOnly) const
{
qreal left, top, right, bottom;
getContentsMargins(&left, &top, &right, &bottom);
QRectF effectiveRect = rect.adjusted(+left, +top, -right, -bottom);
qreal x = effectiveRect.x();
qreal y = effectiveRect.y();
qreal lineHeight = 0;
//! [9]
//! [10]
QGraphicsLayoutItem *item;
foreach (item, m_itemList)
{
QGraphicsItem *wid = item->graphicsItem();
qreal spaceX = spacing(false);
if (spaceX == -1)
{
}
qreal spaceY = spacing(true);
if (spaceY == -1)
{
}
//! [10]
//! [11]
int nextX = x + item->geometry().width() + spaceX;
if (nextX - spaceX > effectiveRect.right() && lineHeight > 0)
{
x = effectiveRect.x();
y = y + lineHeight + spaceY;
nextX = x + item->geometry().width() + spaceX;
lineHeight = 0;
}
if (!testOnly)
item->setGeometry(QRectF(QPointF(x, y), item->geometry().size()));
x = nextX;
lineHeight = qMax(lineHeight, item->geometry().height());
}
/*!
From QGraphicsLayout.
*/
void HbListLayout::setGeometry( const QRectF &rect )
{
QGraphicsLayout::setGeometry(rect);
QRectF effectiveRect = geometry();
// TODO: Apply margins?
//qreal left, top, right, bottom;
//getContentsMargins(&left, &top, &right, &bottom);
//effectiveRect.adjust(+left, +top, -right, -bottom);
qreal y = effectiveRect.y();
int itemCount = count();
for ( int i = 0; i < itemCount; i++ ) {
QGraphicsLayoutItem *item = itemAt( i );
qreal itemHeight = item->preferredHeight();
if (item->graphicsItem()->transform().isScaling()) {
itemHeight *= item->graphicsItem()->transform().m22();
}
QRectF itemRect(effectiveRect.x(), y, effectiveRect.width(), itemHeight);
item->setGeometry(itemRect);
y += itemHeight;
}
}
