@antv/s2
Version:
effective spreadsheet render core lib
39 lines • 2.12 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getScrollOffsetForRow = exports.getScrollOffsetForCol = void 0;
const lodash_1 = require("lodash");
const common_1 = require("../../common");
const interaction_1 = require("../../common/constant/interaction");
// 获取滚动指定列到视口内的滚动 x 轴 Offset。滚动到视口边缘位置，左侧和右侧视滚动方向而定。
const getScrollOffsetForCol = (colIndex, direction, spreadsheet) => {
const { facet } = spreadsheet;
const { viewportWidth } = facet.panelBBox;
const areas = facet === null || facet === void 0 ? void 0 : facet.frozenGroupAreas;
const frozenColWidth = areas[common_1.FrozenGroupArea.Col].width;
const frozenTrailingColWidth = areas[common_1.FrozenGroupArea.TrailingCol].width;
const colNode = facet.getColLeafNodes()[colIndex];
if (direction === interaction_1.ScrollDirection.SCROLL_UP) {
return colNode.x - frozenColWidth;
}
return colNode.x + colNode.width - (viewportWidth - frozenTrailingColWidth);
};
exports.getScrollOffsetForCol = getScrollOffsetForCol;
// 获取滚动指定行到视口内的滚动 y 轴 Offset。滚动到视口边缘位置，上侧和下侧视滚动方向而定。
const getScrollOffsetForRow = (rowIndex, direction, spreadsheet) => {
const { facet } = spreadsheet;
const { getCellOffsetY } = facet.viewCellHeights;
const { viewportHeight } = facet.panelBBox;
const rowOffset = getCellOffsetY(rowIndex + 1);
if ((0, lodash_1.isNil)(rowOffset)) {
return 0;
}
const areas = facet === null || facet === void 0 ? void 0 : facet.frozenGroupAreas;
const frozenRowHeight = areas[common_1.FrozenGroupArea.Row].height;
const frozenTrailingRowHeight = areas[common_1.FrozenGroupArea.TrailingRow].height;
if (direction === interaction_1.ScrollDirection.SCROLL_UP) {
return getCellOffsetY(rowIndex) - frozenRowHeight;
}
return rowOffset - (viewportHeight - frozenTrailingRowHeight);
};
exports.getScrollOffsetForRow = getScrollOffsetForRow;
//# sourceMappingURL=scroll.js.map