nscoord
GetSpaceBetween(PRInt32 aPrevColIndex,
PRInt32 aColIndex,
PRInt32 aColSpan,
nsTableFrame& aTableFrame,
nscoord aCellSpacingX,
bool aIsLeftToRight,
bool aCheckVisibility)
{
nscoord space = 0;
PRInt32 colX;
if (aIsLeftToRight) {
for (colX = aPrevColIndex + 1; aColIndex > colX; colX++) {
bool isCollapsed = false;
if (!aCheckVisibility) {
space += aTableFrame.GetColumnWidth(colX);
}
else {
nsTableColFrame* colFrame = aTableFrame.GetColFrame(colX);
const nsStyleVisibility* colVis = colFrame->GetStyleVisibility();
bool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible);
nsIFrame* cgFrame = colFrame->GetParent();
const nsStyleVisibility* groupVis = cgFrame->GetStyleVisibility();
bool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE ==
groupVis->mVisible);
isCollapsed = collapseCol || collapseGroup;
if (!isCollapsed)
space += aTableFrame.GetColumnWidth(colX);
}
if (!isCollapsed && aTableFrame.ColumnHasCellSpacingBefore(colX)) {
space += aCellSpacingX;
}
}
}
else {
PRInt32 lastCol = aColIndex + aColSpan - 1;
for (colX = aPrevColIndex - 1; colX > lastCol; colX--) {
bool isCollapsed = false;
if (!aCheckVisibility) {
space += aTableFrame.GetColumnWidth(colX);
}
else {
nsTableColFrame* colFrame = aTableFrame.GetColFrame(colX);
const nsStyleVisibility* colVis = colFrame->GetStyleVisibility();
bool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible);
nsIFrame* cgFrame = colFrame->GetParent();
const nsStyleVisibility* groupVis = cgFrame->GetStyleVisibility();
bool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE ==
groupVis->mVisible);
isCollapsed = collapseCol || collapseGroup;
if (!isCollapsed)
space += aTableFrame.GetColumnWidth(colX);
}
if (!isCollapsed && aTableFrame.ColumnHasCellSpacingBefore(colX)) {
space += aCellSpacingX;
}
}
}
return space;
}
// Calculates the available width for the table cell based on the known
// column widths taking into account column spans and column spacing
static nscoord
CalcAvailWidth(nsTableFrame& aTableFrame,
nsTableCellFrame& aCellFrame,
nscoord aCellSpacingX)
{
nscoord cellAvailWidth = 0;
PRInt32 colIndex;
aCellFrame.GetColIndex(colIndex);
PRInt32 colspan = aTableFrame.GetEffectiveColSpan(aCellFrame);
NS_ASSERTION(colspan > 0, "effective colspan should be positive");
for (PRInt32 spanX = 0; spanX < colspan; spanX++) {
cellAvailWidth += aTableFrame.GetColumnWidth(colIndex + spanX);
if (spanX > 0 &&
aTableFrame.ColumnHasCellSpacingBefore(colIndex + spanX)) {
cellAvailWidth += aCellSpacingX;
}
}
return cellAvailWidth;
}