ProjectExplorer: Add option to hide empty directories from project tree

Together with the earlier fix for hiding generated files, this change makes
for a very clean CMake server-mode project tree:-)

Change-Id: Ib70fd66699eddf5d6e602f3f8848b31fd6d85b57
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/libs/utils/treemodel.cpp b/src/libs/utils/treemodel.cpp
index 19f3fc72c48..b4684eedfe1 100644
--- a/src/libs/utils/treemodel.cpp
+++ b/src/libs/utils/treemodel.cpp
@@ -689,6 +689,20 @@ void TreeItem::insertChild(int pos, TreeItem *item)
     }
 }
 
+void TreeItem::removeChildAt(int pos)
+{
+    QTC_ASSERT(0 <= pos && pos < m_children.count(), return);
+
+    if (m_model) {
+        QModelIndex idx = index();
+        m_model->beginRemoveRows(idx, pos, pos);
+        removeItemAt(pos);
+        m_model->endRemoveRows();
+    } else {
+        removeItemAt(pos);
+    }
+}
+
 void TreeItem::removeChildren()
 {
     if (childCount() == 0)
@@ -863,6 +877,15 @@ void TreeItem::clear()
     }
 }
 
+void TreeItem::removeItemAt(int pos)
+{
+    TreeItem *item = m_children.at(pos);
+    item->m_model = nullptr;
+    item->m_parent = nullptr;
+    delete item;
+    m_children.removeAt(pos);
+}
+
 void TreeItem::expand()
 {
     QTC_ASSERT(m_model, return);