void RenderMultiColumnSet::computeLogicalWidth()
{
// Our logical width starts off matching the column block itself.
// This width will be fixed up after the flow thread lays out once it is determined exactly how many
// columns we ended up holding.
// FIXME: When we add regions support, we'll start it off at the width of the multi-column
// block in that particular region.
setLogicalWidth(parentBox()->contentLogicalWidth());
RenderMultiColumnBlock* parentBlock = toRenderMultiColumnBlock(parent());
setComputedColumnWidthAndCount(parentBlock->columnWidth(), parentBlock->columnCount()); // FIXME: This will eventually vary if we are contained inside regions.
}
void RenderMultiColumnSet::updateLogicalWidth()
{
RenderMultiColumnBlock* parentBlock = toRenderMultiColumnBlock(parent());
setComputedColumnWidthAndCount(parentBlock->columnWidth(), parentBlock->columnCount()); // FIXME: This will eventually vary if we are contained inside regions.
// FIXME: When we add regions support, we'll start it off at the width of the multi-column
// block in that particular region.
setLogicalWidth(parentBox()->contentLogicalWidth());
// If we overflow, increase our logical width.
unsigned colCount = columnCount();
LayoutUnit colGap = columnGap();
LayoutUnit minimumContentLogicalWidth = colCount * computedColumnWidth() + (colCount - 1) * colGap;
LayoutUnit currentContentLogicalWidth = contentLogicalWidth();
LayoutUnit delta = max(LayoutUnit(), minimumContentLogicalWidth - currentContentLogicalWidth);
if (!delta)
return;
// Increase our logical width by the delta.
setLogicalWidth(logicalWidth() + delta);
}
LayoutUnit RenderMultiColumnFlowThread::initialLogicalWidth() const
{
RenderMultiColumnBlock* parentBlock = toRenderMultiColumnBlock(parent());
return parentBlock->columnWidth();
}