adds Andy's customer request, first call to createDaultAxis scales whole domain (if on common axis)

2 files changed, 20 insertions, 2 deletions

diff --git a/src/chartdataset.cpp b/src/chartdataset.cpp
index 5558b7d9..05a05102 100644
--- a/src/chartdataset.cpp
+++ b/src/chartdataset.cpp
@@ -303,11 +303,13 @@ void ChartDataSet::createAxes(QAbstractAxis::AxisTypes type, Qt::Orientation ori
         //create one axis for all
 
         addAxis(axis,orientation==Qt::Horizontal?Qt::AlignBottom:Qt::AlignLeft);
-
+        qreal min = 0;
+        qreal max = 0;
+        findMinMaxForSeries(m_seriesList,orientation,min,max);
         foreach(QAbstractSeries *s, m_seriesList) {
             attachAxis(s,axis);
         }
-
+        axis->setRange(min,max);
     }
     else if (!type.testFlag(QAbstractAxis::AxisTypeNoAxis)) {
         //create separate axis
@@ -321,6 +323,21 @@ void ChartDataSet::createAxes(QAbstractAxis::AxisTypes type, Qt::Orientation ori
     }
 }
 
+void ChartDataSet::findMinMaxForSeries(QList<QAbstractSeries *> series,Qt::Orientations orientation, qreal &min, qreal &max)
+{
+	Q_ASSERT(!series.isEmpty());
+
+	AbstractDomain* domain = series.first()->d_ptr->domain();
+	min = (orientation == Qt::Vertical) ? domain->minY() : domain->minX();
+	max = (orientation == Qt::Vertical) ? domain->maxY() : domain->maxX();
+
+	for(int i = 1; i< series.size(); i++) {
+		AbstractDomain* domain = series[i]->d_ptr->domain();
+		min = qMin((orientation == Qt::Vertical) ? domain->minY() : domain->minX(), min);
+		max = qMax((orientation == Qt::Vertical) ? domain->maxY() : domain->maxX(), max);
+	}
+}
+
 void ChartDataSet::deleteAllSeries()
 {
     foreach (QAbstractSeries *s , m_seriesList){
diff --git a/src/chartdataset_p.h b/src/chartdataset_p.h
index 939e5d72..49a41d0e 100644
--- a/src/chartdataset_p.h
+++ b/src/chartdataset_p.h
@@ -80,6 +80,7 @@ private:
     AbstractDomain* createDomain(AbstractDomain::DomainType type);
     void deleteAllAxes();
     void deleteAllSeries();
+    void findMinMaxForSeries(QList<QAbstractSeries *> series,Qt::Orientations orientation, qreal &min, qreal &max);
 private:
     QList<QAbstractSeries *> m_seriesList;
     QList<QAbstractAxis *> m_axisList;