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#include <limits.h>
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#include <QVector>
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#include <QDebug>
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#include "barchartmodel_p.h"
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#include "qbarset.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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BarChartModel::BarChartModel(QStringList categories, QObject *parent) : QObject(parent),
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m_category(categories)
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{
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}
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QStringList BarChartModel::category()
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{
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return m_category;
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}
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void BarChartModel::appendBarSet(QBarSet *set)
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{
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m_dataModel.append(set);
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}
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void BarChartModel::removeBarSet(QBarSet *set)
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{
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if (m_dataModel.contains(set)) {
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m_dataModel.removeOne(set);
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}
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}
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void BarChartModel::insertBarSet(int i, QBarSet *set)
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{
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m_dataModel.insert(i, set);
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}
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void BarChartModel::insertCategory(int i, QString category)
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{
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m_category.insert(i, category);
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}
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void BarChartModel::removeCategory(int i)
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{
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m_category.removeAt(i);
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}
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QBarSet* BarChartModel::barsetAt(int index) const
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{
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return m_dataModel.at(index);
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}
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QList<QBarSet*> BarChartModel::barSets() const
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{
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return m_dataModel;
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}
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int BarChartModel::barsetCount() const
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{
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return m_dataModel.count();
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}
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int BarChartModel::categoryCount() const
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{
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return m_category.count();
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}
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qreal BarChartModel::min() const
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{
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Q_ASSERT(m_dataModel.count() > 0);
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// TODO: make min and max members and update them when data changes.
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// This is slower since they are checked every time, even if data is same since previous call.
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qreal min = INT_MAX;
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for (int i = 0; i < m_dataModel.count(); i++) {
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int itemCount = m_dataModel.at(i)->count();
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for (int j = 0; j < itemCount; j++) {
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qreal temp = m_dataModel.at(i)->valueAt(j);
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if (temp < min)
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min = temp;
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}
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}
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return min;
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}
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qreal BarChartModel::max() const
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{
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Q_ASSERT(m_dataModel.count() > 0);
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// TODO: make min and max members and update them when data changes.
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// This is slower since they are checked every time, even if data is same since previous call.
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qreal max = INT_MIN;
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for (int i = 0; i < m_dataModel.count(); i++) {
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int itemCount = m_dataModel.at(i)->count();
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for (int j = 0; j < itemCount; j++) {
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qreal temp = m_dataModel.at(i)->valueAt(j);
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if (temp > max)
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max = temp;
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}
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}
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return max;
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}
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qreal BarChartModel::valueAt(int set, int category) const
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{
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if ((set < 0) || (set >= m_dataModel.count())) {
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// No set, no value.
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return 0;
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} else if ((category < 0) || (category >= m_dataModel.at(set)->count())) {
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// No category, no value.
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return 0;
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}
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return m_dataModel.at(set)->valueAt(category);
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}
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qreal BarChartModel::percentageAt(int set, int category) const
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{
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if ((set < 0) || (set >= m_dataModel.count())) {
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// No set, no value.
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return 0;
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} else if ((category < 0) || (category >= m_dataModel.at(set)->count())) {
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// No category, no value.
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return 0;
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}
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qreal value = m_dataModel.at(set)->valueAt(category);
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qreal total = categorySum(category);
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if ( qFuzzyCompare(total, 0) )
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return 0;
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return value / total;
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}
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qreal BarChartModel::categorySum(int category) const
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{
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qreal sum(0);
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int count = m_dataModel.count(); // Count sets
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for (int set = 0; set < count; set++) {
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if (category < m_dataModel.at(set)->count())
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sum += m_dataModel.at(set)->valueAt(category);
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}
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return sum;
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}
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qreal BarChartModel::maxCategorySum() const
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{
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qreal max = INT_MIN;
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int count = categoryCount();
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for (int col = 0; col < count; col++) {
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qreal sum = categorySum(col);
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if (sum > max)
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max = sum;
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}
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return max;
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}
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QString BarChartModel::categoryName(int category)
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{
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return m_category.at(category);
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}
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#include "moc_barchartmodel_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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