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#include <limits.h>
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#include "stackedbarchartseries.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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StackedBarChartSeries::StackedBarChartSeries(QObject *parent) :
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QChartSeries(parent)
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{
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}
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bool StackedBarChartSeries::setData(QAbstractItemModel* model)
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{
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mModel = model;
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}
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int StackedBarChartSeries::min()
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{
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Q_ASSERT(mModel->rowCount() > 0);
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Q_ASSERT(mModel->columnCount() > 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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int min = INT_MAX;
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for (int i=0; i <mModel->rowCount(); i++) {
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for(int j=0; j<mModel->columnCount(); j++) {
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int temp = mModel->data(mModel->index(i,j)).toInt();
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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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}
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return min;
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}
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int StackedBarChartSeries::max()
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{
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Q_ASSERT(mModel->rowCount() > 0);
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Q_ASSERT(mModel->columnCount() > 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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int max = INT_MIN;
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for (int i=0; i <mModel->rowCount(); i++) {
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for(int j=0; j<mModel->columnCount(); j++) {
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int temp = mModel->data(mModel->index(i,j)).toInt();
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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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}
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return max;
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}
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int StackedBarChartSeries::maxColumnSum()
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{
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Q_ASSERT(mModel->rowCount() > 0);
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Q_ASSERT(mModel->columnCount() > 0);
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int max = INT_MIN;
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for (int col=0; col <mModel->rowCount(); col++) {
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int sum = columnSum(col);
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if (sum > max) {
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max = sum;
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}
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}
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return max;
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}
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int StackedBarChartSeries::countRows()
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{
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return mModel->rowCount();
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}
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int StackedBarChartSeries::countColumns()
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{
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return mModel->columnCount();
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}
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int StackedBarChartSeries::countTotalItems()
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{
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return mModel->rowCount() * mModel->columnCount();
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}
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int StackedBarChartSeries::valueAt(int row, int column)
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{
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QModelIndex index = mModel->index(row,column);
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return mModel->data(index).toInt();
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}
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int StackedBarChartSeries::columnSum(int column)
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{
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int sum(0);
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int count = mModel->rowCount();
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for (int row = 0; row < count; row++) {
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sum += mModel->data(mModel->index(row,column)).toInt();
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}
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return sum;
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}
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#include "moc_stackedbarchartseries.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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