mirror of
https://github.com/fralx/LimeReport.git
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317 lines
10 KiB
C++
317 lines
10 KiB
C++
/***************************************************************************
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* This file is part of the Lime Report project *
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* Copyright (C) 2021 by Alexander Arin *
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* arin_a@bk.ru *
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* *
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** GNU General Public License Usage **
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* *
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* This library is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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** GNU Lesser General Public License **
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* *
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* This library is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License as *
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* published by the Free Software Foundation, either version 3 of the *
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* License, or (at your option) any later version. *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with this library. *
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* If not, see <http://www.gnu.org/licenses/>. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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****************************************************************************/
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#include "lrgroupfunctions.h"
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#include "lrbanddesignintf.h"
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#include "lrdatasourcemanager.h"
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#include "lritemdesignintf.h"
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#include "lrpageitemdesignintf.h"
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#include "lrscriptenginemanager.h"
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
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#include <QRegExp>
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#endif
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namespace LimeReport {
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void GroupFunction::slotBandRendered(BandDesignIntf* band)
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{
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ScriptEngineManager& sm = ScriptEngineManager::instance();
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
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QRegExp rxField(Const::FIELD_RX);
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QRegExp rxVar(Const::VARIABLE_RX);
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#else
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QRegularExpression rxField = getFieldRegEx();
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QRegularExpression rxVar = getVariableRegEx();
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#endif
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switch (m_dataType) {
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case Field: {
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
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if (rxField.indexIn(m_data) != -1) {
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QString field = rxField.cap(1);
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#else
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QRegularExpressionMatch matchField = rxField.match(m_data);
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if (matchField.hasMatch()) {
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QString field = matchField.captured(1);
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#endif
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if (m_dataManager->containsField(field)) {
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m_values.push_back(m_dataManager->fieldData(field));
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m_valuesByBand.insert(band, m_dataManager->fieldData(field));
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} else {
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setInvalid(tr("Field \"%1\" not found").arg(m_data));
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}
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}
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break;
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}
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case Variable: {
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
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if (rxVar.indexIn(m_data) != -1) {
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QString var = rxVar.cap(1);
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#else
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QRegularExpressionMatch matchVar = rxVar.match(m_data);
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if (matchVar.hasMatch()) {
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QString var = matchVar.captured(1);
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#endif
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if (m_dataManager->containsVariable(var)) {
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m_values.push_back(m_dataManager->variable(var));
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m_valuesByBand.insert(band, m_dataManager->variable(var));
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} else {
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setInvalid(tr("Variable \"%1\" not found").arg(m_data));
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}
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}
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break;
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}
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case Script: {
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QVariant value = sm.evaluateScript(m_data);
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if (value.isValid()) {
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m_values.push_back(value);
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m_valuesByBand.insert(band, value);
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} else {
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setInvalid(tr("Wrong script syntax \"%1\" ").arg(m_data));
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}
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break;
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}
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case ContentItem: {
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QString itemName = m_data;
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ContentItemDesignIntf* item
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= dynamic_cast<ContentItemDesignIntf*>(band->childByName(itemName.remove('"')));
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if (item) {
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m_values.push_back(item->content());
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m_valuesByBand.insert(band, item->content());
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} else if (m_name.compare("COUNT", Qt::CaseInsensitive) == 0) {
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m_values.push_back(1);
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m_valuesByBand.insert(band, 1);
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} else
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setInvalid(tr("Item \"%1\" not found").arg(m_data));
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break;
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}
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default:
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break;
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}
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}
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void GroupFunction::slotBandReRendered(BandDesignIntf* oldBand, BandDesignIntf* newBand)
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{
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if (m_valuesByBand.contains(oldBand)) {
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m_valuesByBand.insert(newBand, m_valuesByBand.value(oldBand));
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m_valuesByBand.remove(oldBand);
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}
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}
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QVariant GroupFunction::addition(QVariant value1, QVariant value2)
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{
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return value1.toDouble() + value2.toDouble();
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}
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QVariant GroupFunction::subtraction(QVariant value1, QVariant value2)
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{
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return value1.toDouble() - value2.toDouble();
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}
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QVariant GroupFunction::division(QVariant value1, QVariant value2)
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{
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return value1.toDouble() / value2.toDouble();
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}
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QVariant GroupFunction::multiplication(QVariant value1, QVariant value2)
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{
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return value1.toDouble() * value2.toDouble();
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}
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GroupFunction::GroupFunction(const QString& expression, const QString& dataBandName,
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DataSourceManager* dataManager):
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m_data(expression),
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m_dataBandName(dataBandName),
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m_dataManager(dataManager),
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m_isValid(true),
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m_errorMessage("")
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{
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
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QRegExp rxField(Const::FIELD_RX, Qt::CaseInsensitive);
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QRegExp rxVariable(Const::VARIABLE_RX, Qt::CaseInsensitive);
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QRegExp rxScript(Const::SCRIPT_RX, Qt::CaseInsensitive);
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#else
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QRegularExpression rxField = getFieldRegEx();
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QRegularExpression rxVariable = getVariableRegEx();
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QRegularExpression rxScript = getScriptRegEx();
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#endif
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
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if (rxScript.indexIn(expression) != -1) {
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#else
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QRegularExpressionMatch matchScript = rxScript.match(expression);
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if (matchScript.hasMatch()) {
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#endif
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m_dataType = Script;
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return;
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}
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
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if (rxField.indexIn(expression) != -1) {
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#else
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QRegularExpressionMatch matchField = rxField.match(expression);
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if (matchField.hasMatch()) {
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#endif
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m_dataType = Field;
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return;
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}
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#if (QT_VERSION < QT_VERSION_CHECK(5, 15, 1))
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if (rxVariable.indexIn(expression) != -1) {
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#else
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QRegularExpressionMatch matchVariable = rxVariable.match(expression);
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if (matchVariable.hasMatch()) {
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#endif
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m_dataType = Variable;
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return;
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}
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m_dataType = ContentItem;
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}
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GroupFunction* GroupFunctionFactory::createGroupFunction(const QString& functionName,
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const QString& expression,
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const QString& dataBandName,
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DataSourceManager* dataManager)
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{
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if (m_creators.contains(functionName)) {
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return m_creators.value(functionName)
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->createFunction(expression, dataBandName, dataManager);
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}
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return 0;
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}
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GroupFunctionFactory::~GroupFunctionFactory()
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{
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foreach (GroupFunctionCreator* creator, m_creators.values()) {
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delete creator;
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}
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m_creators.clear();
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}
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QVariant SumGroupFunction::calculate(PageItemDesignIntf* page)
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{
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QVariant res = 0;
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if (!page) {
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foreach (QVariant value, values()) {
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res = addition(res, value);
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}
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} else {
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foreach (BandDesignIntf* band, page->bands()) {
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res = addition(res, m_valuesByBand.value(band));
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}
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}
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return res;
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}
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QVariant AvgGroupFunction::calculate(PageItemDesignIntf* page)
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{
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QVariant res = QVariant();
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if (!page) {
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foreach (QVariant value, values()) {
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res = addition(res, value);
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}
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} else {
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foreach (BandDesignIntf* band, page->bands()) {
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res = addition(res, m_valuesByBand.value(band));
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}
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}
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if (!res.isNull() && (values().count() > 0)) {
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res = division(res, values().count());
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}
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return res;
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}
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QVariant MinGroupFunction::calculate(PageItemDesignIntf* page)
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{
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// TODO: check variant type
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QVariant res = QVariant();
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if (!page) {
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if (!values().empty())
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res = values().at(0);
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foreach (QVariant value, values()) {
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if (res.toDouble() > value.toDouble())
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res = value;
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}
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} else {
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if (!page->bands().empty())
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res = m_valuesByBand.value(page->bands().at(0));
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foreach (BandDesignIntf* band, page->bands()) {
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if (res.toDouble() > m_valuesByBand.value(band).toDouble())
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res = m_valuesByBand.value(band);
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}
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}
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return res;
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}
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QVariant MaxGroupFunction::calculate(PageItemDesignIntf* page)
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{
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// TODO: check variant type
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QVariant res = QVariant();
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if (!page) {
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if (!values().empty())
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res = values().at(0);
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foreach (QVariant value, values()) {
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if (res.toDouble() < value.toDouble())
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res = value;
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}
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} else {
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if (!page->bands().empty())
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res = m_valuesByBand.value(page->bands().at(0));
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foreach (BandDesignIntf* band, page->bands()) {
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if (res.toDouble() < m_valuesByBand.value(band).toDouble())
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res = m_valuesByBand.value(band);
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}
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}
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return res;
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}
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QVariant CountGroupFunction::calculate(PageItemDesignIntf* page)
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{
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if (!page) {
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return values().count();
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} else {
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int res = 0;
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foreach (BandDesignIntf* band, page->bands()) {
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if (!m_valuesByBand.value(band).isNull()) {
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res++;
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}
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}
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return res;
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}
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}
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} // namespace LimeReport
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