Enable querying selection label via API

Also enable suppressing drawing the label on graph.

Selection label formatting was consequently moved from renderers
to series.

Task-number: QTRD-2896

Change-Id: Ia6a1a40298d8db0f54349de3eb27fb0b683dd302
Reviewed-by: Tomi Korpipää <tomi.korpipaa@digia.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/src/datavisualization/data/qbar3dseries.cpp b/src/datavisualization/data/qbar3dseries.cpp
index ed4ffaba..8a05100f 100644
--- a/src/datavisualization/data/qbar3dseries.cpp
+++ b/src/datavisualization/data/qbar3dseries.cpp
@@ -317,6 +317,56 @@ void QBar3DSeriesPrivate::connectControllerAndProxy(Abstract3DController *newCon
     }
 }
 
+void QBar3DSeriesPrivate::createItemLabel()
+{
+    static const QString rowIndexTag(QStringLiteral("@rowIdx"));
+    static const QString rowLabelTag(QStringLiteral("@rowLabel"));
+    static const QString rowTitleTag(QStringLiteral("@rowTitle"));
+    static const QString colIndexTag(QStringLiteral("@colIdx"));
+    static const QString colLabelTag(QStringLiteral("@colLabel"));
+    static const QString colTitleTag(QStringLiteral("@colTitle"));
+    static const QString valueTitleTag(QStringLiteral("@valueTitle"));
+    static const QString valueLabelTag(QStringLiteral("@valueLabel"));
+    static const QString seriesNameTag(QStringLiteral("@seriesName"));
+
+    if (m_selectedBar == QBar3DSeries::invalidSelectionPosition()) {
+        m_itemLabel = QString();
+        return;
+    }
+
+    QCategory3DAxis *categoryAxisZ = static_cast<QCategory3DAxis *>(m_controller->axisZ());
+    QCategory3DAxis *categoryAxisX = static_cast<QCategory3DAxis *>(m_controller->axisX());
+    QValue3DAxis *valueAxis = static_cast<QValue3DAxis *>(m_controller->axisY());
+    qreal selectedBarValue = qreal(qptr()->dataProxy()->itemAt(m_selectedBar)->value());
+
+    // Custom format expects printf format specifier. There is no tag for it.
+    m_itemLabel = valueAxis->formatter()->stringForValue(selectedBarValue, m_itemLabelFormat);
+
+    int selBarPosRow = m_selectedBar.x();
+    int selBarPosCol = m_selectedBar.y();
+    m_itemLabel.replace(rowIndexTag, QString::number(selBarPosRow));
+    if (categoryAxisZ->labels().size() > selBarPosRow)
+        m_itemLabel.replace(rowLabelTag, categoryAxisZ->labels().at(selBarPosRow));
+    else
+        m_itemLabel.replace(rowLabelTag, QString());
+    m_itemLabel.replace(rowTitleTag, categoryAxisZ->title());
+    m_itemLabel.replace(colIndexTag, QString::number(selBarPosCol));
+    if (categoryAxisX->labels().size() > selBarPosCol)
+        m_itemLabel.replace(colLabelTag, categoryAxisX->labels().at(selBarPosCol));
+    else
+        m_itemLabel.replace(colLabelTag, QString());
+    m_itemLabel.replace(colTitleTag, categoryAxisX->title());
+    m_itemLabel.replace(valueTitleTag, valueAxis->title());
+
+    if (m_itemLabel.contains(valueLabelTag)) {
+        QString valueLabelText = valueAxis->formatter()->stringForValue(selectedBarValue,
+                                                                        valueAxis->labelFormat());
+        m_itemLabel.replace(valueLabelTag, valueLabelText);
+    }
+
+    m_itemLabel.replace(seriesNameTag, m_name);
+}
+
 void QBar3DSeriesPrivate::handleMeshRotationChanged(const QQuaternion &rotation)
 {
     emit qptr()->meshAngleChanged(quaternionAngle(rotation));
@@ -325,6 +375,7 @@ void QBar3DSeriesPrivate::handleMeshRotationChanged(const QQuaternion &rotation)
 void QBar3DSeriesPrivate::setSelectedBar(const QPoint &position)
 {
     if (position != m_selectedBar) {
+        markItemLabelDirty();
         m_selectedBar = position;
         emit qptr()->selectedBarChanged(m_selectedBar);
     }