diff options
| -rw-r--r-- | layout/tables/nsTableFrame.cpp | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/layout/tables/nsTableFrame.cpp b/layout/tables/nsTableFrame.cpp index db6e31e2b..e903d6121 100644 --- a/layout/tables/nsTableFrame.cpp +++ b/layout/tables/nsTableFrame.cpp @@ -1192,6 +1192,7 @@ PaintRowBackground(nsTableRowFrame* aRow, nsIFrame* aFrame, nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists, + const nsRect& aDirtyRect, const nsPoint& aOffset = nsPoint()) { // Compute background rect by iterating over all cell frames. @@ -1201,6 +1202,9 @@ PaintRowBackground(nsTableRowFrame* aRow, } auto cellRect = cell->GetRectRelativeToSelf() + cell->GetNormalPosition() + aOffset; + if (!aDirtyRect.Intersects(cellRect)) { + continue; + } nsDisplayBackgroundImage::AppendBackgroundItemsToTop(aBuilder, aFrame, cellRect, aLists.BorderBackground(), true, nullptr, @@ -1213,10 +1217,14 @@ static void PaintRowGroupBackground(nsTableRowGroupFrame* aRowGroup, nsIFrame* aFrame, nsDisplayListBuilder* aBuilder, - const nsDisplayListSet& aLists) + const nsDisplayListSet& aLists, + const nsRect& aDirtyRect) { for (nsTableRowFrame* row = aRowGroup->GetFirstRow(); row; row = row->GetNextRow()) { - PaintRowBackground(row, aFrame, aBuilder, aLists, row->GetNormalPosition()); + if (!aDirtyRect.Intersects(nsRect(row->GetNormalPosition(), row->GetSize()))) { + continue; + } + PaintRowBackground(row, aFrame, aBuilder, aLists, aDirtyRect, row->GetNormalPosition()); } } @@ -1229,6 +1237,10 @@ PaintRowGroupBackgroundByColIdx(nsTableRowGroupFrame* aRowGroup, const nsPoint& aOffset) { for (nsTableRowFrame* row = aRowGroup->GetFirstRow(); row; row = row->GetNextRow()) { + auto rowPos = row->GetNormalPosition() + aOffset; + if (!aDirtyRect.Intersects(nsRect(rowPos, row->GetSize()))) { + continue; + } for (nsTableCellFrame* cell = row->GetFirstCell(); cell; cell = cell->GetNextCell()) { if (!cell->ShouldPaintBackground(aBuilder)) { continue; @@ -1237,7 +1249,11 @@ PaintRowGroupBackgroundByColIdx(nsTableRowGroupFrame* aRowGroup, int32_t curColIdx; cell->GetColIndex(curColIdx); if (aColIdx.Contains(curColIdx)) { - auto cellRect = cell->GetRectRelativeToSelf() + cell->GetNormalPosition() + row->GetNormalPosition() + aOffset; + auto cellPos = cell->GetNormalPosition() + rowPos; + auto cellRect = nsRect(cellPos, cell->GetSize()); + if (!aDirtyRect.Intersects(cellRect)) { + continue; + } nsDisplayBackgroundImage::AppendBackgroundItemsToTop(aBuilder, aFrame, cellRect, aLists.BorderBackground(), true, nullptr, @@ -1284,10 +1300,10 @@ nsTableFrame::DisplayGenericTablePart(nsDisplayListBuilder* aBuilder, // See spec at https://drafts.csswg.org/css-tables-3/#drawing-cell-backgrounds if (aFrame->GetType() == nsGkAtoms::tableRowGroupFrame) { nsTableRowGroupFrame* rowGroup = static_cast<nsTableRowGroupFrame*>(aFrame); - PaintRowGroupBackground(rowGroup, aFrame, aBuilder, aLists); + PaintRowGroupBackground(rowGroup, aFrame, aBuilder, aLists, aDirtyRect); } else if (aFrame->GetType() == nsGkAtoms::tableRowFrame) { nsTableRowFrame* row = static_cast<nsTableRowFrame*>(aFrame); - PaintRowBackground(row, aFrame, aBuilder, aLists); + PaintRowBackground(row, aFrame, aBuilder, aLists, aDirtyRect); } else if (aFrame->GetType() == nsGkAtoms::tableColGroupFrame) { // Compute background rect by iterating all cell frame. nsTableColGroupFrame* colGroup = static_cast<nsTableColGroupFrame*>(aFrame); @@ -1302,7 +1318,10 @@ nsTableFrame::DisplayGenericTablePart(nsDisplayListBuilder* aBuilder, table->OrderRowGroups(rowGroups); for (nsTableRowGroupFrame* rowGroup : rowGroups) { auto offset = rowGroup->GetNormalPosition() - colGroup->GetNormalPosition(); - PaintRowGroupBackgroundByColIdx(rowGroup, aFrame, aBuilder, aLists, colIdx, offset); + if (!aDirtyRect.Intersects(nsRect(offset, rowGroup->GetSize()))) { + continue; + } + PaintRowGroupBackgroundByColIdx(rowGroup, aFrame, aBuilder, aLists, aDirtyRect, colIdx, offset); } } else if (aFrame->GetType() == nsGkAtoms::tableColFrame) { // Compute background rect by iterating all cell frame. @@ -1317,7 +1336,10 @@ nsTableFrame::DisplayGenericTablePart(nsDisplayListBuilder* aBuilder, auto offset = rowGroup->GetNormalPosition() - col->GetNormalPosition() - col->GetTableColGroupFrame()->GetNormalPosition(); - PaintRowGroupBackgroundByColIdx(rowGroup, aFrame, aBuilder, aLists, colIdx, offset); + if (!aDirtyRect.Intersects(nsRect(offset, rowGroup->GetSize()))) { + continue; + } + PaintRowGroupBackgroundByColIdx(rowGroup, aFrame, aBuilder, aLists, aDirtyRect, colIdx, offset); } } else if (isVisible) { nsDisplayBackgroundImage::AppendBackgroundItemsToTop(aBuilder, aFrame, |