DolphinView: Allow to have tootips on columns headers

Add events columnHovered/columnUnHovered to KItemListview and
KItemListHeaderWidget.

4 files changed, 20 insertions, 1 deletions

diff --git a/src/kitemviews/kitemlistview.cpp b/src/kitemviews/kitemlistview.cpp
index d9455ce9e..7f1347920 100644
--- a/src/kitemviews/kitemlistview.cpp
+++ b/src/kitemviews/kitemlistview.cpp
@@ -601,6 +601,8 @@ void KItemListView::setHeaderVisible(bool visible)
         connect(m_headerWidget, &KItemListHeaderWidget::columnMoved, this, &KItemListView::slotHeaderColumnMoved);
         connect(m_headerWidget, &KItemListHeaderWidget::sortOrderChanged, this, &KItemListView::sortOrderChanged);
         connect(m_headerWidget, &KItemListHeaderWidget::sortRoleChanged, this, &KItemListView::sortRoleChanged);
+        connect(m_headerWidget, &KItemListHeaderWidget::columnHovered, this, &KItemListView::columnHovered);
+        connect(m_headerWidget, &KItemListHeaderWidget::columnUnHovered, this, &KItemListView::columnUnHovered);
 
         m_layouter->setHeaderHeight(headerSize.height());
         m_headerWidget->setVisible(true);
@@ -610,6 +612,8 @@ void KItemListView::setHeaderVisible(bool visible)
         disconnect(m_headerWidget, &KItemListHeaderWidget::columnMoved, this, &KItemListView::slotHeaderColumnMoved);
         disconnect(m_headerWidget, &KItemListHeaderWidget::sortOrderChanged, this, &KItemListView::sortOrderChanged);
         disconnect(m_headerWidget, &KItemListHeaderWidget::sortRoleChanged, this, &KItemListView::sortRoleChanged);
+        disconnect(m_headerWidget, &KItemListHeaderWidget::columnHovered, this, &KItemListView::columnHovered);
+        disconnect(m_headerWidget, &KItemListHeaderWidget::columnUnHovered, this, &KItemListView::columnUnHovered);
 
         m_layouter->setHeaderHeight(0);
         m_headerWidget->setVisible(false);
diff --git a/src/kitemviews/kitemlistview.h b/src/kitemviews/kitemlistview.h
index e9b4a62dd..6c3d3648d 100644
--- a/src/kitemviews/kitemlistview.h
+++ b/src/kitemviews/kitemlistview.h
@@ -327,6 +327,9 @@ Q_SIGNALS:
      */
     void scrollingStopped();
 
+    void columnHovered(int roleIndex);
+    void columnUnHovered(int roleIndex);
+
 protected:
     QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
     void setItemSize(const QSizeF &size);
diff --git a/src/kitemviews/private/kitemlistheaderwidget.cpp b/src/kitemviews/private/kitemlistheaderwidget.cpp
index ac25d189c..d23b7def9 100644
--- a/src/kitemviews/private/kitemlistheaderwidget.cpp
+++ b/src/kitemviews/private/kitemlistheaderwidget.cpp
@@ -372,6 +372,7 @@ void KItemListHeaderWidget::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
 {
     QGraphicsWidget::hoverLeaveEvent(event);
     if (m_hoveredRoleIndex != -1) {
+        Q_EMIT columnUnHovered(m_hoveredRoleIndex);
         m_hoveredRoleIndex = -1;
         update();
     }
@@ -488,8 +489,15 @@ void KItemListHeaderWidget::updatePressedRoleIndex(const QPointF &pos)
 void KItemListHeaderWidget::updateHoveredRoleIndex(const QPointF &pos)
 {
     const int hoverIndex = roleIndexAt(pos);
+
     if (m_hoveredRoleIndex != hoverIndex) {
+        if (m_hoveredRoleIndex != -1) {
+            Q_EMIT columnUnHovered(m_hoveredRoleIndex);
+        }
         m_hoveredRoleIndex = hoverIndex;
+        if (m_hoveredRoleIndex != -1) {
+            Q_EMIT columnHovered(m_hoveredRoleIndex);
+        }
         update();
     }
 }
diff --git a/src/kitemviews/private/kitemlistheaderwidget.h b/src/kitemviews/private/kitemlistheaderwidget.h
index 58c27b43a..05a5924e1 100644
--- a/src/kitemviews/private/kitemlistheaderwidget.h
+++ b/src/kitemviews/private/kitemlistheaderwidget.h
@@ -93,6 +93,9 @@ Q_SIGNALS:
      */
     void sortRoleChanged(const QByteArray &current, const QByteArray &previous);
 
+    void columnUnHovered(int roleIndex);
+    void columnHovered(int roleIndex);
+
 protected:
     void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
     void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
@@ -158,7 +161,8 @@ private:
         int x;
         int xDec;
         int index;
-    } m_movingRole;
+    };
+    MovingRole m_movingRole;
 };
 
 #endif