Fix continuous updateLabels in bars

This does not fix the continous synchData completely, but removes
the unnecessary label updates.

Another patch is needed to take care of the endless sync loop.

Task-number: QTBUG-136174
Change-Id: I222deb86c25a4fafde73c550b0ae7151047a66e2
Reviewed-by: Kwanghyo Park <kwanghyo.park@qt.io>
Reviewed-by: Sakaria Pouke <sakaria.pouke@qt.io>
(cherry picked from commit f9fe3c37ee)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 4c96f4b0c4)
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>

src/graphs3d/qml/qquickgraphsbars.cpp

@@ -775,9 +775,9 @@ void QQuickGraphsBars::synchData()
         m_changeTracker.barSeriesMarginChanged = false;
     }
 
-    if (m_axisRangeChanged) {
-        theme()->resetDirtyBits();
-        m_axisRangeChanged = false;
+    if (m_changeTracker.axisRangeChanged) {
+        adjustAxisRanges();
+        m_changeTracker.axisRangeChanged = false;
     }
 
     QQuickGraphsItem::synchData();
@@ -836,7 +836,7 @@ void QQuickGraphsBars::updateParameters()
         if (m_cachedBarThickness.isValid())
             calculateSceneScalingFactors();
     }
-    m_axisRangeChanged = true;
+    m_changeTracker.axisRangeChanged = true;
     setDataDirty(true);
 }
 
@@ -2690,7 +2690,7 @@ void QQuickGraphsBars::updateBarSpecs(float thicknessRatio, QSizeF spacing, bool
         m_cachedBarSpacing = m_cachedBarThickness * 2 + spacing * 2;
     }
 
-    m_axisRangeChanged = true;
+    m_changeTracker.axisRangeChanged = true;
     m_changeTracker.selectedBarChanged = true;
 
     // Calculate here and at setting sample space

src/graphs3d/qml/qquickgraphsbars_p.h

@@ -34,6 +34,7 @@ struct Bars3DChangeBitField
     bool itemChanged : 1;
     bool floorLevelChanged : 1;
     bool barSeriesMarginChanged : 1;
+    bool axisRangeChanged : 1;
 
     Bars3DChangeBitField()
         : multiSeriesScalingChanged(true)
@@ -43,6 +44,7 @@ struct Bars3DChangeBitField
         , itemChanged(false)
         , floorLevelChanged(false)
         , barSeriesMarginChanged(false)
+        , axisRangeChanged(false)
     {}
 };
 
@@ -252,8 +254,6 @@ private:
     float m_heightNormalizer = 1.0f;
     float m_backgroundAdjustment = 0.0f;
 
-    bool m_axisRangeChanged = false;
-
     QQuick3DModel *m_floorBackground = nullptr;
     QQuick3DNode *m_floorBackgroundScale = nullptr;
     QQuick3DNode *m_floorBackgroundRotation = nullptr;

src/graphs3d/qml/qquickgraphsitem.cpp

@@ -2664,7 +2664,7 @@ void QQuickGraphsItem::synchData()
             updateGridLineType();
         else
             updateGrid();
-        updateLabels();
+        m_labelsNeedupdate = true;
         updateCustomData();
         if (m_sliceView && isSliceEnabled()) {
             updateSliceGrid();
@@ -2678,7 +2678,7 @@ void QQuickGraphsItem::synchData()
         m_changeTracker.radialLabelOffsetChanged = false;
     }
     if (m_changeTracker.labelMarginChanged) {
-        updateLabels();
+        m_labelsNeedupdate = true;
         m_changeTracker.labelMarginChanged = false;
     }
 
@@ -2918,7 +2918,7 @@ void QQuickGraphsItem::synchData()
         m_titleLabelY->setProperty("labelFont", font);
         m_titleLabelZ->setProperty("labelFont", font);
         m_itemLabel->setProperty("labelFont", font);
-        updateLabels();
+        m_labelsNeedupdate = true;
 
         if (m_sliceView && isSliceEnabled()) {
             changeLabelFont(m_sliceHorizontalLabelRepeater, font);
@@ -3023,7 +3023,7 @@ void QQuickGraphsItem::synchData()
             updateGridLineType();
         else
             updateGrid();
-        updateLabels();
+        m_labelsNeedupdate = true;
         if (m_sliceView && isSliceEnabled()) {
             updateSliceGrid();
             updateSliceLabels();