Introduce value axis formatter

Currently only used for label formatting.

Also some other preparatory changes for logaxis.

Task-number: QTRD-2787

Note: Not to be merged until 1.0 is released

Change-Id: I2d7ab70b9c51677d0edd5b0226fb779c9e346286
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 15 insertions, 2 deletions

diff --git a/src/datavisualization/axis/qcategory3daxis.cpp b/src/datavisualization/axis/qcategory3daxis.cpp
index c11a65eb..d4152c90 100644
--- a/src/datavisualization/axis/qcategory3daxis.cpp
+++ b/src/datavisualization/axis/qcategory3daxis.cpp
@@ -121,8 +121,6 @@ QCategory3DAxisPrivate::QCategory3DAxisPrivate(QCategory3DAxis *q)
     : QAbstract3DAxisPrivate(q, QAbstract3DAxis::AxisTypeCategory),
       m_labelsExplicitlySet(false)
 {
-    m_onlyPositiveValues = true;
-    m_allowMinMaxSame = true;
 }
 
 QCategory3DAxisPrivate::~QCategory3DAxisPrivate()
@@ -142,6 +140,21 @@ void QCategory3DAxisPrivate::setDataLabels(const QStringList &labels)
     }
 }
 
+bool QCategory3DAxisPrivate::allowZero()
+{
+    return true;
+}
+
+bool QCategory3DAxisPrivate::allowNegatives()
+{
+    return false;
+}
+
+bool QCategory3DAxisPrivate::allowMinMaxSame()
+{
+    return true;
+}
+
 QCategory3DAxis *QCategory3DAxisPrivate::qptr()
 {
     return static_cast<QCategory3DAxis *>(q_ptr);