void MythUIType::ExpandArea(const MythRect &rect)
{
QSize childSize = rect.size();
QSize size = m_Area.size();
if (childSize == size)
return;
SetSize(size.expandedTo(childSize));
SetRedraw();
}
/**
* Adjust the size of sibling objects within the button.
*/
void MythUIType::SetMinAreaParent(MythRect actual_area, MythRect allowed_area,
const MythUIType *calling_child)
{
int delta_x = 0, delta_y = 0;
MythRect area;
// If a minsize is not set, don't use MinArea
if (!m_MinSize.isValid())
return;
m_MinArea.setWidth(0);
if (m_Area.width() < m_NormalSize.width())
m_Area.setWidth(m_NormalSize.width());
if (m_Area.height() < m_NormalSize.height())
m_Area.setHeight(m_NormalSize.height());
if (calling_child->m_Vanished)
{
actual_area.moveLeft(0);
actual_area.moveTop(0);
allowed_area.moveLeft(0);
allowed_area.moveTop(0);
}
actual_area.translate(m_Area.topLeft());
allowed_area.translate(m_Area.topLeft());
QList<MythUIType *>::iterator it;
for (it = m_ChildrenList.begin(); it != m_ChildrenList.end(); ++it)
{
if (*it == calling_child || !(*it)->m_Initiator)
continue;
// Find union of area(s)
area = (*it)->GetArea();
area.translate(m_Area.topLeft());
actual_area = actual_area.united(area);
area = (*it)->m_Area;
area.translate(m_Area.topLeft());
allowed_area = allowed_area.united(area);
}
// Make sure it is not larger than the area allowed
actual_area = actual_area.intersected(m_Area);
allowed_area = allowed_area.intersected(m_Area);
if (m_Vanish && actual_area.size().isNull())
{
m_Vanished = true;
}
else
{
if (calling_child->m_Vanished)
{
delta_x = (actual_area.x() + actual_area.width()) -
(m_Area.x() + m_Area.width());
delta_y = (actual_area.y() + actual_area.height()) -
(m_Area.y() + m_Area.height());
}
else
{
delta_x = (actual_area.x() + actual_area.width()) -
(allowed_area.x() + allowed_area.width());
delta_y = (actual_area.y() + actual_area.height()) -
(allowed_area.y() + allowed_area.height());
}
m_Vanished = false;
}
for (it = m_ChildrenList.begin(); it != m_ChildrenList.end(); ++it)
{
if (*it == calling_child)
continue;
if (!(*it)->m_Initiator)
{
if (m_Vanished)
(*it)->VanishSibling();
else
(*it)->AdjustMinArea(delta_x, delta_y);
}
area = (*it)->GetArea();
area.translate(m_Area.topLeft());
actual_area = actual_area.united(area);
}
QSize bound(actual_area.width(), actual_area.height());
if (m_Vanished)
{
m_MinArea.moveLeft(0);
m_MinArea.moveTop(0);
}
else
bound = bound.expandedTo(GetMinSize());
m_MinArea.setWidth(bound.width());
m_MinArea.setHeight(bound.height());
if (m_Parent)
m_Parent->SetMinAreaParent(actual_area, m_Area, this);
}