Implement group-header layouting

The most tricky part for groups - the layouting - basically works
now for all views (grouping was available only in the icons views
for Dolphin 1.x) and is nearly equally fast as without groups.

Still open:
- Group headers are ugly screen rectangles
- Return valid groups in KFileItemModel instead of the currently
  hardcoded testing values
- Dynamically turning on/off groups does not work currently, the
  directory must be reentered

1 files changed, 5 insertions, 1 deletions

diff --git a/src/kitemviews/kitemlistview.cpp b/src/kitemviews/kitemlistview.cpp
index a4cb4b041..eb464a9e7 100644
--- a/src/kitemviews/kitemlistview.cpp
+++ b/src/kitemviews/kitemlistview.cpp
@@ -23,7 +23,6 @@
 #include "kitemlistview.h"
 
 #include "kitemlistcontroller.h"
-#include "kitemlistgroupheader.h"
 #include "kitemlistheader_p.h"
 #include "kitemlistrubberband_p.h"
 #include "kitemlistselectionmanager.h"
@@ -1318,6 +1317,8 @@ KItemListWidget* KItemListView::createWidget(int index)
     if (m_grouped) {
         if (m_layouter->isFirstGroupItem(index)) {
             KItemListGroupHeader* header = m_groupHeaderCreator->create(widget);
+            header->show();
+            // TODO:
             header->setPos(0, -50);
             header->resize(50, 50);
             m_visibleGroups.insert(widget, header);
@@ -1358,6 +1359,8 @@ void KItemListView::setWidgetIndex(KItemListWidget* widget, int index)
 
         if (createHeader) {
             KItemListGroupHeader* header = m_groupHeaderCreator->create(widget);
+            header->show();
+            // TODO:
             header->setPos(0, -50);
             header->resize(50, 50);
             m_visibleGroups.insert(widget, header);
@@ -1667,6 +1670,7 @@ KItemListWidgetCreatorBase::~KItemListWidgetCreatorBase()
 
 void KItemListWidgetCreatorBase::recycle(KItemListWidget* widget)
 {
+    widget->setParentItem(0);
     widget->setOpacity(1.0);
     pushRecycleableWidget(widget);
 }