barchartmodel.cpp
99 lines
| 2.2 KiB
| text/x-c
|
CppLexer
sauimone
|
r159 | #include <limits.h> | ||
| #include "barchartmodel_p.h" | ||||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
| BarChartModel::BarChartModel(QObject *parent) : | ||||
| QObject(parent) | ||||
| { | ||||
| } | ||||
| void BarChartModel::addSeries(BarChartSeriesBase& series) | ||||
| { | ||||
| mSeries.append(&series); | ||||
| emit modelUpdated(); | ||||
| } | ||||
| void BarChartModel::removeSeries(BarChartSeriesBase& series) | ||||
| { | ||||
| int i = mSeries.indexOf(&series); | ||||
| if (-1 == i) { | ||||
| return; | ||||
| } | ||||
| mSeries.removeAt(i); | ||||
| emit modelUpdated(); | ||||
| } | ||||
| int BarChartModel::countSeries() | ||||
| { | ||||
| return mSeries.count(); | ||||
| } | ||||
| int BarChartModel::countItemsInSeries() | ||||
| { | ||||
| int count(0); | ||||
| for (int i=0; i<mSeries.count(); i++){ | ||||
| // TODO: can we assume that all series have same number of items? If not. then which items are empty. | ||||
| int temp = mSeries.at(i)->countItems(); | ||||
| if (temp > count) { | ||||
| count = temp; | ||||
| } | ||||
| } | ||||
| return count; | ||||
| } | ||||
| int BarChartModel::countTotalItems() | ||||
| { | ||||
| int total = mSeries.count() * countItemsInSeries(); | ||||
| return total; | ||||
| } | ||||
| int BarChartModel::min() | ||||
| { | ||||
| Q_ASSERT(mSeries.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. | ||||
| int min = INT_MAX; | ||||
| for (int i=0; i <mSeries.count(); i++) { | ||||
| int temp = mSeries.at(i)->min(); | ||||
| if (temp < min) { | ||||
| min = temp; | ||||
| } | ||||
| } | ||||
| return min; | ||||
| } | ||||
| int BarChartModel::max() | ||||
| { | ||||
| Q_ASSERT(mSeries.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. | ||||
| int max = INT_MIN; | ||||
| for (int i=0; i <mSeries.count(); i++) { | ||||
| int temp = mSeries.at(i)->min(); | ||||
| if (temp > max) { | ||||
| max = temp; | ||||
| } | ||||
| } | ||||
| return max; | ||||
| } | ||||
| qreal BarChartModel::valueAt(int series, int item) | ||||
| { | ||||
| if ((series < 0) || (series >= mSeries.count())) { | ||||
| // No series, no value. | ||||
| return 0; | ||||
| } else if ((item < 0) || (item >= mSeries.at(series)->countItems())) { | ||||
| // No item, no value. | ||||
| return 0; | ||||
| } | ||||
| return mSeries.at(series)->valueAt(item); | ||||
| } | ||||
| #include "moc_barchartmodel_p.cpp" | ||||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||