Details view: Fix indicator-branches

Up to now no indicator-branches have been drawn when showing a tree. The patch
fixes this so that that the style-dependent branches are drawn.

The main part of the patch is the implementation of
KItemListView::updateSiblingsInformation(). Most of the other changes are
related due to an internal renaming of the expansionsLevel-role to
expandedParentsCount and some related cleanups.

BUG: 290276
FIXED-IN: 4.8.1

1 files changed, 2 insertions, 0 deletions

diff --git a/src/kitemviews/kfileitemlistwidget.h b/src/kitemviews/kfileitemlistwidget.h
index 4a44a8468..afb0f0171 100644
--- a/src/kitemviews/kfileitemlistwidget.h
+++ b/src/kitemviews/kfileitemlistwidget.h
@@ -86,6 +86,7 @@ protected:
     virtual void styleOptionChanged(const KItemListStyleOption& current, const KItemListStyleOption& previous);
     virtual void hoveredChanged(bool hovered);
     virtual void selectedChanged(bool selected);
+    virtual void siblingsInformationChanged(const QBitArray& current, const QBitArray& previous);
     virtual void resizeEvent(QGraphicsSceneResizeEvent* event);
     virtual void showEvent(QShowEvent* event);
     virtual void hideEvent(QHideEvent* event);
@@ -119,6 +120,7 @@ private:
     void updateAdditionalInfoTextColor();
 
     void drawPixmap(QPainter* painter, const QPixmap& pixmap);
+    void drawSiblingsInformation(QPainter* painter);
 
     static QPixmap pixmapForIcon(const QString& name, int size);
     static TextId roleTextId(const QByteArray& role);