|
|
#include <limits.h>
|
|
|
#include <QVector>
|
|
|
#include <QDebug>
|
|
|
#include "barchartmodel_p.h"
|
|
|
#include "qbarcategory.h"
|
|
|
#include "qbarset.h"
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
BarChartModel::BarChartModel(QBarCategory *category, QObject *parent) :
|
|
|
QObject(parent)
|
|
|
,mCategory(category)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
BarChartModel::~BarChartModel()
|
|
|
{
|
|
|
delete mCategory;
|
|
|
}
|
|
|
|
|
|
|
|
|
QBarCategory& BarChartModel::category()
|
|
|
{
|
|
|
return *mCategory;
|
|
|
}
|
|
|
|
|
|
void BarChartModel::addBarSet(QBarSet *set)
|
|
|
{
|
|
|
mDataModel.append(set);
|
|
|
}
|
|
|
|
|
|
void BarChartModel::removeBarSet(QBarSet *set)
|
|
|
{
|
|
|
if (mDataModel.contains(set)) {
|
|
|
mDataModel.removeOne(set);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QBarSet* BarChartModel::nextSet(bool getFirst)
|
|
|
{
|
|
|
if (getFirst) {
|
|
|
mCurrentSet = 0;
|
|
|
}
|
|
|
|
|
|
if ((mDataModel.count() <= 0) || (mDataModel.count() <= mCurrentSet)) {
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
QBarSet* set = mDataModel.at(mCurrentSet);
|
|
|
mCurrentSet++;
|
|
|
return set;
|
|
|
}
|
|
|
|
|
|
|
|
|
QBarSet& BarChartModel::setAt(int index)
|
|
|
{
|
|
|
return *mDataModel.at(index);
|
|
|
}
|
|
|
|
|
|
int BarChartModel::countSets()
|
|
|
{
|
|
|
return mDataModel.count();
|
|
|
}
|
|
|
|
|
|
int BarChartModel::countCategories()
|
|
|
{
|
|
|
int count(0);
|
|
|
for (int i=0; i<mDataModel.count(); i++){
|
|
|
// TODO: can we assume that all series have same number of values? If not. then which values are empty?
|
|
|
int temp = mDataModel.at(i)->count();
|
|
|
if (temp > count) {
|
|
|
count = temp;
|
|
|
}
|
|
|
}
|
|
|
return count;
|
|
|
}
|
|
|
|
|
|
int BarChartModel::countTotalItems()
|
|
|
{
|
|
|
int total = mDataModel.count() * countCategories();
|
|
|
return total;
|
|
|
}
|
|
|
|
|
|
qreal BarChartModel::min()
|
|
|
{
|
|
|
Q_ASSERT(mDataModel.count() > 0);
|
|
|
// TODO: make min and max members and update them when data changes.
|
|
|
// This is slower since they are checked every time, even if data is same since previous call.
|
|
|
qreal min = INT_MAX;
|
|
|
|
|
|
for (int i=0; i <mDataModel.count(); i++) {
|
|
|
int itemCount = mDataModel.at(i)->count();
|
|
|
for (int j=0; j<itemCount; j++) {
|
|
|
qreal temp = mDataModel.at(i)->valueAt(j);
|
|
|
if (temp < min) {
|
|
|
min = temp;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
return min;
|
|
|
}
|
|
|
|
|
|
qreal BarChartModel::max()
|
|
|
{
|
|
|
Q_ASSERT(mDataModel.count() > 0);
|
|
|
|
|
|
// TODO: make min and max members and update them when data changes.
|
|
|
// This is slower since they are checked every time, even if data is same since previous call.
|
|
|
qreal max = INT_MIN;
|
|
|
|
|
|
for (int i=0; i <mDataModel.count(); i++) {
|
|
|
int itemCount = mDataModel.at(i)->count();
|
|
|
for (int j=0; j<itemCount; j++) {
|
|
|
qreal temp = mDataModel.at(i)->valueAt(j);
|
|
|
if (temp > max) {
|
|
|
max = temp;
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
return max;
|
|
|
}
|
|
|
|
|
|
qreal BarChartModel::valueAt(int set, int category)
|
|
|
{
|
|
|
if ((set < 0) || (set >= mDataModel.count())) {
|
|
|
// No set, no value.
|
|
|
return 0;
|
|
|
} else if ((category < 0) || (category >= mDataModel.at(set)->count())) {
|
|
|
// No category, no value.
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
return mDataModel.at(set)->valueAt(category);
|
|
|
}
|
|
|
|
|
|
qreal BarChartModel::categorySum(int column)
|
|
|
{
|
|
|
qreal sum(0);
|
|
|
int count = mDataModel.count(); // Count rows
|
|
|
|
|
|
for (int row = 0; row < count; row++) {
|
|
|
if (column < mDataModel.at(row)->count()) {
|
|
|
sum += mDataModel.at(row)->valueAt(column);
|
|
|
}
|
|
|
}
|
|
|
return sum;
|
|
|
}
|
|
|
|
|
|
qreal BarChartModel::maxCategorySum()
|
|
|
{
|
|
|
qreal max = INT_MIN;
|
|
|
int count = countCategories();
|
|
|
|
|
|
for (int col=0; col<count; col++) {
|
|
|
qreal sum = categorySum(col);
|
|
|
if (sum > max) {
|
|
|
max = sum;
|
|
|
}
|
|
|
}
|
|
|
return max;
|
|
|
}
|
|
|
|
|
|
QString BarChartModel::label(int category)
|
|
|
{
|
|
|
return mCategory->label(category);
|
|
|
}
|
|
|
|
|
|
#include "moc_barchartmodel_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
