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Fixes wrong shades zvalues
Fixes wrong shades zvalues

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barchartmodel.cpp
151 lines | 3.3 KiB | text/x-c | CppLexer
#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);
delete set;
}
}
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