exceljs
Version:
Excel Workbook Manager - Read and Write xlsx and csv Files.
230 lines (227 loc) • 6.24 kB
JavaScript
"use strict";
const colCache = require('../utils/col-cache');
// used by worksheet to calculate sheet dimensions
class Range {
constructor() {
this.decode(arguments);
}
setTLBR(t, l, b, r, s) {
if (arguments.length < 4) {
// setTLBR(tl, br, s)
const tl = colCache.decodeAddress(t);
const br = colCache.decodeAddress(l);
this.model = {
top: Math.min(tl.row, br.row),
left: Math.min(tl.col, br.col),
bottom: Math.max(tl.row, br.row),
right: Math.max(tl.col, br.col),
sheetName: b
};
this.setTLBR(tl.row, tl.col, br.row, br.col, s);
} else {
// setTLBR(t, l, b, r, s)
this.model = {
top: Math.min(t, b),
left: Math.min(l, r),
bottom: Math.max(t, b),
right: Math.max(l, r),
sheetName: s
};
}
}
decode(argv) {
switch (argv.length) {
case 5:
// [t,l,b,r,s]
this.setTLBR(argv[0], argv[1], argv[2], argv[3], argv[4]);
break;
case 4:
// [t,l,b,r]
this.setTLBR(argv[0], argv[1], argv[2], argv[3]);
break;
case 3:
// [tl,br,s]
this.setTLBR(argv[0], argv[1], argv[2]);
break;
case 2:
// [tl,br]
this.setTLBR(argv[0], argv[1]);
break;
case 1:
{
const value = argv[0];
if (value instanceof Range) {
// copy constructor
this.model = {
top: value.model.top,
left: value.model.left,
bottom: value.model.bottom,
right: value.model.right,
sheetName: value.sheetName
};
} else if (value instanceof Array) {
// an arguments array
this.decode(value);
} else if (value.top && value.left && value.bottom && value.right) {
// a model
this.model = {
top: value.top,
left: value.left,
bottom: value.bottom,
right: value.right,
sheetName: value.sheetName
};
} else {
// [sheetName!]tl:br
const tlbr = colCache.decodeEx(value);
if (tlbr.top) {
this.model = {
top: tlbr.top,
left: tlbr.left,
bottom: tlbr.bottom,
right: tlbr.right,
sheetName: tlbr.sheetName
};
} else {
this.model = {
top: tlbr.row,
left: tlbr.col,
bottom: tlbr.row,
right: tlbr.col,
sheetName: tlbr.sheetName
};
}
}
break;
}
case 0:
this.model = {
top: 0,
left: 0,
bottom: 0,
right: 0
};
break;
default:
throw new Error(`Invalid number of arguments to _getDimensions() - ${argv.length}`);
}
}
get top() {
return this.model.top || 1;
}
set top(value) {
this.model.top = value;
}
get left() {
return this.model.left || 1;
}
set left(value) {
this.model.left = value;
}
get bottom() {
return this.model.bottom || 1;
}
set bottom(value) {
this.model.bottom = value;
}
get right() {
return this.model.right || 1;
}
set right(value) {
this.model.right = value;
}
get sheetName() {
return this.model.sheetName;
}
set sheetName(value) {
this.model.sheetName = value;
}
get _serialisedSheetName() {
const {
sheetName
} = this.model;
if (sheetName) {
if (/^[a-zA-Z0-9]*$/.test(sheetName)) {
return `${sheetName}!`;
}
return `'${sheetName}'!`;
}
return '';
}
expand(top, left, bottom, right) {
if (!this.model.top || top < this.top) this.top = top;
if (!this.model.left || left < this.left) this.left = left;
if (!this.model.bottom || bottom > this.bottom) this.bottom = bottom;
if (!this.model.right || right > this.right) this.right = right;
}
expandRow(row) {
if (row) {
const {
dimensions,
number
} = row;
if (dimensions) {
this.expand(number, dimensions.min, number, dimensions.max);
}
}
}
expandToAddress(addressStr) {
const address = colCache.decodeEx(addressStr);
this.expand(address.row, address.col, address.row, address.col);
}
get tl() {
return colCache.n2l(this.left) + this.top;
}
get $t$l() {
return `$${colCache.n2l(this.left)}$${this.top}`;
}
get br() {
return colCache.n2l(this.right) + this.bottom;
}
get $b$r() {
return `$${colCache.n2l(this.right)}$${this.bottom}`;
}
get range() {
return `${this._serialisedSheetName + this.tl}:${this.br}`;
}
get $range() {
return `${this._serialisedSheetName + this.$t$l}:${this.$b$r}`;
}
get shortRange() {
return this.count > 1 ? this.range : this._serialisedSheetName + this.tl;
}
get $shortRange() {
return this.count > 1 ? this.$range : this._serialisedSheetName + this.$t$l;
}
get count() {
return (1 + this.bottom - this.top) * (1 + this.right - this.left);
}
toString() {
return this.range;
}
intersects(other) {
if (other.sheetName && this.sheetName && other.sheetName !== this.sheetName) return false;
if (other.bottom < this.top) return false;
if (other.top > this.bottom) return false;
if (other.right < this.left) return false;
if (other.left > this.right) return false;
return true;
}
contains(addressStr) {
const address = colCache.decodeEx(addressStr);
return this.containsEx(address);
}
containsEx(address) {
if (address.sheetName && this.sheetName && address.sheetName !== this.sheetName) return false;
return address.row >= this.top && address.row <= this.bottom && address.col >= this.left && address.col <= this.right;
}
forEachAddress(cb) {
for (let col = this.left; col <= this.right; col++) {
for (let row = this.top; row <= this.bottom; row++) {
cb(colCache.encodeAddress(row, col), row, col);
}
}
}
}
module.exports = Range;
//# sourceMappingURL=range.js.map