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* Issue #376 fix - RemoveColumn * Removing of columns is forbidden when there are formula arrays in the area of removing, except 1-column wide arrays * Modifying named ranges, column ranges when deleting a column * Updating formulas when deleting a column * UpdateAction
78 lines
2.3 KiB
Go
78 lines
2.3 KiB
Go
// Copyright 2017 FoxyUtils ehf. All rights reserved.
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//
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// Use of this source code is governed by the terms of the Affero GNU General
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// Public License version 3.0 as published by the Free Software Foundation and
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// appearing in the file LICENSE included in the packaging of this file. A
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// commercial license can be purchased on https://unidoc.io.
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package formula
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/unidoc/unioffice/spreadsheet/update"
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)
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// VerticalRange is a range expression that when evaluated returns a list of Results from references like AA:IJ (all cells from columns AA to IJ).
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type VerticalRange struct {
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colFrom, colTo string
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}
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// NewVerticalRange constructs a new full columns range.
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func NewVerticalRange(v string) Expression {
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sl := strings.Split(v, ":")
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if len(sl) != 2 {
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return nil
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}
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return VerticalRange{sl[0], sl[1]}
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}
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// Eval evaluates a vertical range returning a list of results or an error.
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func (r VerticalRange) Eval(ctx Context, ev Evaluator) Result {
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key := r.verticalRangeReference()
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if cached, found := ev.GetFromCache(key); found {
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return cached
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}
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from, to := cellRefsFromVerticalRange(ctx, r.colFrom, r.colTo)
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res := resultFromCellRange(ctx, ev, from, to)
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ev.SetCache(key, res)
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return res
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}
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func (r VerticalRange) verticalRangeReference() string {
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return fmt.Sprintf("%s:%s", r.colFrom, r.colTo)
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}
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// Reference returns a string reference value to a vertical range.
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func (r VerticalRange) Reference(ctx Context, ev Evaluator) Reference {
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return Reference{Type: ReferenceTypeVerticalRange, Value: r.verticalRangeReference()}
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}
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func cellRefsFromVerticalRange(ctx Context, colFrom, colTo string) (string, string) {
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from := colFrom + "1"
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lastRow := ctx.LastRow(colFrom)
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to := colTo + strconv.Itoa(lastRow)
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return from, to
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}
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// String returns a string representation of a vertical range.
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func (r VerticalRange) String() string {
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return r.verticalRangeReference()
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}
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// Update updates references in the VerticalRange after removing a row/column.
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func (r VerticalRange) Update(q *update.UpdateQuery) Expression {
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if q.UpdateType == update.UpdateActionRemoveColumn {
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new := r
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if q.UpdateCurrentSheet {
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columnIdx := q.ColumnIdx
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new.colFrom = updateColumnToLeft(r.colFrom, columnIdx)
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new.colTo = updateColumnToLeft(r.colTo, columnIdx)
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}
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return new
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}
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return r
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}
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