mirror of
https://github.com/crystalidea/qt6windows7.git
synced 2024-11-23 20:10:48 +08:00
119 lines
3.2 KiB
C++
119 lines
3.2 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "spreadsheetitem.h"
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QTableWidgetItem *SpreadSheetItem::clone() const
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{
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SpreadSheetItem *item = new SpreadSheetItem;
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*item = *this;
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return item;
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}
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QVariant SpreadSheetItem::data(int role) const
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{
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if (role == Qt::EditRole || role == Qt::StatusTipRole)
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return formula();
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if (role == Qt::DisplayRole)
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return display();
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const QString t = display().toString();
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if (role == Qt::ForegroundRole) {
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bool isNumber = false;
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const int number = t.toInt(&isNumber);
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QColor color = Qt::black;
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if (isNumber)
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color = (number < 0) ? Qt::red : Qt::blue;
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return QVariant::fromValue(color);
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}
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if (role == Qt::TextAlignmentRole)
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if (!t.isEmpty() && (t.at(0).isNumber() || t.at(0) == '-'))
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return int(Qt::AlignRight | Qt::AlignVCenter);
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return QTableWidgetItem::data(role);
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}
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void SpreadSheetItem::setData(int role, const QVariant &value)
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{
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QTableWidgetItem::setData(role, value);
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if (tableWidget())
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tableWidget()->viewport()->update();
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}
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QVariant SpreadSheetItem::display() const
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{
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// avoid circular dependencies
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if (isResolving)
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return QVariant();
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isResolving = true;
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QVariant result = computeFormula(formula(), tableWidget(), this);
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isResolving = false;
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return result;
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}
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QVariant SpreadSheetItem::computeFormula(const QString &formula,
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const QTableWidget *widget,
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const QTableWidgetItem *self)
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{
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// check if the string is actually a formula or not
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QStringList list = formula.split(' ');
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if (list.isEmpty() || !widget)
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return formula; // it is a normal string
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QString op = list.value(0).toLower();
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int firstRow = -1;
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int firstCol = -1;
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int secondRow = -1;
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int secondCol = -1;
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if (list.count() > 1)
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decode_pos(list.value(1), &firstRow, &firstCol);
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if (list.count() > 2)
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decode_pos(list.value(2), &secondRow, &secondCol);
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const QTableWidgetItem *start = widget->item(firstRow, firstCol);
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const QTableWidgetItem *end = widget->item(secondRow, secondCol);
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int firstVal = start ? start->text().toInt() : 0;
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int secondVal = end ? end->text().toInt() : 0;
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QVariant result;
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if (op == "sum") {
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int sum = 0;
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for (int r = firstRow; r <= secondRow; ++r) {
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for (int c = firstCol; c <= secondCol; ++c) {
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const QTableWidgetItem *tableItem = widget->item(r, c);
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if (tableItem && tableItem != self)
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sum += tableItem->text().toInt();
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}
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}
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result = sum;
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} else if (op == "+") {
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result = (firstVal + secondVal);
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} else if (op == "-") {
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result = (firstVal - secondVal);
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} else if (op == "*") {
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result = (firstVal * secondVal);
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} else if (op == "/") {
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if (secondVal == 0)
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result = QString("nan");
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else
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result = (firstVal / secondVal);
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} else if (op == "=") {
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if (start)
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result = start->text();
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} else {
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result = formula;
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}
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return result;
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}
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