@visactor/vtable
Version:
canvas table width high performance
29 lines (27 loc) • 1.38 kB
JavaScript
export function getCellMergeRange(cellGroup, scene) {
if (!scene || !scene.proxy) return {
colStart: 0,
colEnd: 0,
rowStart: 0,
rowEnd: 0
};
const {mergeStartCol: mergeStartCol, mergeEndCol: mergeEndCol, mergeStartRow: mergeStartRow, mergeEndRow: mergeEndRow, col: col, row: row} = cellGroup;
return {
colStart: mergeStartCol,
colEnd: mergeEndCol,
rowStart: mergeStartRow,
rowEnd: mergeEndRow
};
}
export function expendCellRange(cellRange, table) {
const colStart = cellRange.start.col, colEnd = cellRange.end.col, rowStart = cellRange.start.row, rowEnd = cellRange.end.row;
let newColStart = colStart, newColEnd = colEnd, newRowStart = rowStart, newRowEnd = rowEnd;
for (let col = colStart; col <= colEnd; col++) for (let row = rowStart; row <= rowEnd; row++) {
const mergeRange = table.getCellRange(col, row);
mergeRange && (newColStart = Math.min(newColStart, mergeRange.start.col), newColEnd = Math.max(newColEnd, mergeRange.end.col),
newRowStart = Math.min(newRowStart, mergeRange.start.row), newRowEnd = Math.max(newRowEnd, mergeRange.end.row));
}
return cellRange.start.col = newColStart, cellRange.end.col = newColEnd, cellRange.start.row = newRowStart,
cellRange.end.row = newRowEnd, cellRange;
}
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