X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=blobdiff_plain;f=src%2Fclient%2Ftreemodel.cpp;h=dd06446a0936e2489d93c3393d30c0cbd0a63fbd;hp=1505a25ed11272a72f66d5e8fed3806f2f59fa71;hb=9d4fbba1e7390f7cbc60aed962bf9d36ac111263;hpb=e104b220388a276a4483a45567243a8473ca5fa6

diff --git a/src/client/treemodel.cpp b/src/client/treemodel.cpp
index 1505a25e..dd06446a 100644
--- a/src/client/treemodel.cpp
+++ b/src/client/treemodel.cpp
@@ -1,11 +1,11 @@
 /***************************************************************************
- *   Copyright (C) 2005-07 by The Quassel Team                             *
+ *   Copyright (C) 2005-08 by the Quassel Project                          *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
+ *   (at your option) version 3.                                           *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
@@ -18,70 +18,269 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#include "global.h"
 #include "treemodel.h"
 
+#include <QDebug>
+
 /*****************************************
- *  Buffer Items stored in the Tree Model
+ *  Abstract Items of a TreeModel
  *****************************************/
-TreeItem::TreeItem(const QList<QVariant> &data, TreeItem *parent) : QObject(parent) {
-  itemData = data;
-  parentItem = parent;
+AbstractTreeItem::AbstractTreeItem(AbstractTreeItem *parent)
+  : QObject(parent),
+    _flags(Qt::ItemIsSelectable | Qt::ItemIsEnabled)
+{
+}
+
+AbstractTreeItem::~AbstractTreeItem() {
+}
+
+quint64 AbstractTreeItem::id() const {
+  return (quint64)this;
+}
+
+int AbstractTreeItem::defaultColumn() const {
+  // invalid QModelIndexes aka rootNodes get their Childs stuffed into column -1
+  // all others to 0
+  if(parent() == 0)
+    return -1;
+  else
+    return 0;
 }
 
-TreeItem::TreeItem(TreeItem *parent) {
-  itemData = QList<QVariant>();
-  parentItem = parent;
+bool AbstractTreeItem::newChild(int column, AbstractTreeItem *item) {
+  if(column >= columnCount()) {
+    qWarning() << "AbstractTreeItem::newChild() cannot append Child to not existing column!" << this << column;
+    return false;
+  }
+  
+  if(!_childItems.contains(column)) {
+    _childItems[column] = QList<AbstractTreeItem *>();
+  }
+
+  int newRow = _childItems[column].count();
+  emit beginAppendChilds(column, newRow, newRow);
+  _childItems[column].append(item);
+  emit endAppendChilds();
+  
+  return true;
+}
+
+bool AbstractTreeItem::newChild(AbstractTreeItem *item) {
+  return newChild(defaultColumn(), item);
 }
 
-TreeItem::~TreeItem() {
-  qDeleteAll(childItems);
+bool AbstractTreeItem::removeChild(int column, int row) {
+  if(!_childItems.contains(column) || row >= childCount(column))
+    return false;
+
+  emit beginRemoveChilds(column, row, row);
+  AbstractTreeItem *treeitem = _childItems[column].takeAt(row);
+  treeitem->deleteLater();
+  emit endRemoveChilds();
+
+  return true;
 }
 
-void TreeItem::appendChild(TreeItem *item) {
-  childItems.append(item);
+bool AbstractTreeItem::removeChild(int row) {
+  return removeChild(defaultColumn(), row);
 }
 
-void TreeItem::removeChild(int row) {
-  childItems.removeAt(row);
+bool AbstractTreeItem::removeChildById(int column, const quint64 &id) {
+  if(!_childItems.contains(column))
+    return false;
+
+  for(int i = 0; i < _childItems[column].count(); i++) {
+    if(_childItems[column][i]->id() == id)
+      return removeChild(column, i);
+  }
+  return false;
 }
 
-TreeItem *TreeItem::child(int row) {
-  return childItems.value(row);
+bool AbstractTreeItem::removeChildById(const quint64 &id) {
+  return removeChildById(defaultColumn(), id);
 }
 
-int TreeItem::childCount() const {
-  return childItems.count();
+void AbstractTreeItem::removeAllChilds() {
+  AbstractTreeItem *child;
+
+  QHash<int, QList<AbstractTreeItem *> >::iterator columnIter = _childItems.begin();
+  while(columnIter != _childItems.end()) {
+    if(columnIter->count() > 0) {
+      emit beginRemoveChilds(columnIter.key(), 0, columnIter->count() - 1);
+      QList<AbstractTreeItem *>::iterator childIter = columnIter->begin();
+      while(childIter != columnIter->end()) {
+	child = *childIter;
+	// child->removeAllChilds();
+	childIter = columnIter->erase(childIter);
+	child->deleteLater();
+      }
+      emit endRemoveChilds();
+    }
+    columnIter++;
+  }
 }
 
-int TreeItem::row() const {
-  if(parentItem)
-    return parentItem->childItems.indexOf(const_cast<TreeItem*>(this));
+AbstractTreeItem *AbstractTreeItem::child(int column, int row) const {
+  if(!_childItems.contains(column) || _childItems[column].size() <= row)
+    return 0;
   else
+    return _childItems[column].value(row);
+}
+
+AbstractTreeItem *AbstractTreeItem::child(int row) const {
+  return child(defaultColumn(), row);
+}
+
+AbstractTreeItem *AbstractTreeItem::childById(int column, const quint64 &id) const {
+  if(!_childItems.contains(column))
     return 0;
+
+  for(int i = 0; i < _childItems[column].count(); i++) {
+    if(_childItems[column][i]->id() == id)
+      return _childItems[column][i];
+  }
+  return 0;
 }
 
-TreeItem *TreeItem::parent() {
-  return parentItem;
+AbstractTreeItem *AbstractTreeItem::childById(const quint64 &id) const {
+  return childById(defaultColumn(), id);
 }
 
-int TreeItem::columnCount() const {
-  return itemData.count();
+int AbstractTreeItem::childCount(int column) const {
+  if(!_childItems.contains(column))
+    return 0;
+  else
+    return _childItems[column].count();
+}
+
+int AbstractTreeItem::childCount() const {
+  return childCount(defaultColumn());
 }
 
-QVariant TreeItem::data(int column, int role) const {
-  if(role == Qt::DisplayRole and column < itemData.count())
-    return itemData[column];
+int AbstractTreeItem::column() const {
+  if(!parent())
+    return -1;
+
+  QHash<int, QList<AbstractTreeItem*> >::const_iterator iter = parent()->_childItems.constBegin();
+  while(iter != parent()->_childItems.constEnd()) {
+    if(iter->contains(const_cast<AbstractTreeItem *>(this)))
+      return iter.key();
+    iter++;
+  }
+
+  qWarning() << "AbstractTreeItem::column(): unable to determine the Column of" << this;
+  return parent()->defaultColumn();
+}
+
+int AbstractTreeItem::row() const {
+  if(!parent())
+    return -1;
   else
+    return parent()->_childItems[column()].indexOf(const_cast<AbstractTreeItem *>(this));
+}
+
+AbstractTreeItem *AbstractTreeItem::parent() const {
+  return qobject_cast<AbstractTreeItem *>(QObject::parent());
+}
+
+Qt::ItemFlags AbstractTreeItem::flags() const {
+  return _flags;
+}
+
+void AbstractTreeItem::setFlags(Qt::ItemFlags flags) {
+  _flags = flags;
+}
+
+/*****************************************
+ * SimpleTreeItem
+ *****************************************/
+SimpleTreeItem::SimpleTreeItem(const QList<QVariant> &data, AbstractTreeItem *parent)
+  : AbstractTreeItem(parent),
+    _itemData(data)
+{
+}
+
+SimpleTreeItem::~SimpleTreeItem() {
+}
+
+QVariant SimpleTreeItem::data(int column, int role) const {
+  if(column >= columnCount() || role != Qt::DisplayRole)
     return QVariant();
+  else
+    return _itemData[column];
 }
 
+bool SimpleTreeItem::setData(int column, const QVariant &value, int role) {
+  if(column > columnCount() || role != Qt::DisplayRole)
+    return false;
+
+  if(column == columnCount())
+    _itemData.append(value);
+  else
+    _itemData[column] = value;
+
+  emit dataChanged(column);
+  return true;
+}
+
+int SimpleTreeItem::columnCount() const {
+  return _itemData.count();
+}
+
+/*****************************************
+ * PropertyMapItem
+ *****************************************/
+PropertyMapItem::PropertyMapItem(const QStringList &propertyOrder, AbstractTreeItem *parent)
+  : AbstractTreeItem(parent),
+    _propertyOrder(propertyOrder)
+{
+}
+
+PropertyMapItem::PropertyMapItem(AbstractTreeItem *parent)
+  : AbstractTreeItem(parent),
+    _propertyOrder(QStringList())
+{
+}
+
+
+PropertyMapItem::~PropertyMapItem() {
+}
+  
+QVariant PropertyMapItem::data(int column, int role) const {
+  if(column >= columnCount() || role != Qt::DisplayRole)
+    return QVariant();
+
+  return property(_propertyOrder[column].toAscii());
+}
+
+bool PropertyMapItem::setData(int column, const QVariant &value, int role) {
+  if(column >= columnCount() || role != Qt::DisplayRole)
+    return false;
+
+  emit dataChanged(column);
+  return setProperty(_propertyOrder[column].toAscii(), value);
+}
+
+int PropertyMapItem::columnCount() const {
+  return _propertyOrder.count();
+}
+  
+void PropertyMapItem::appendProperty(const QString &property) {
+  _propertyOrder << property;
+}
+
+
 
 /*****************************************
  * TreeModel
  *****************************************/
-TreeModel::TreeModel(const QList<QVariant> &data, QObject *parent) : QAbstractItemModel(parent) {
-  rootItem = new TreeItem(data, 0);
+TreeModel::TreeModel(const QList<QVariant> &data, QObject *parent)
+  : QAbstractItemModel(parent),
+    _childStatus(QModelIndex(), 0, 0, 0),
+    _aboutToRemoveOrInsert(false)
+{
+  rootItem = new SimpleTreeItem(data, 0);
+  connectItem(rootItem);
 }
 
 TreeModel::~TreeModel() {
@@ -92,66 +291,116 @@ QModelIndex TreeModel::index(int row, int column, const QModelIndex &parent) con
   if(!hasIndex(row, column, parent))
     return QModelIndex();
   
-  TreeItem *parentItem;
+  AbstractTreeItem *parentItem;
   
   if(!parent.isValid())
     parentItem = rootItem;
   else
-    parentItem = static_cast<TreeItem*>(parent.internalPointer());
+    parentItem = static_cast<AbstractTreeItem*>(parent.internalPointer());
   
-  TreeItem *childItem = parentItem->child(row);
+  AbstractTreeItem *childItem = parentItem->child(parent.column(), row);
+
   if(childItem)
     return createIndex(row, column, childItem);
   else
     return QModelIndex();
 }
 
+QModelIndex TreeModel::indexById(quint64 id, const QModelIndex &parent) const {
+  AbstractTreeItem *parentItem; 
+  
+  if(!parent.isValid())
+    parentItem = rootItem;
+  else
+    parentItem = static_cast<AbstractTreeItem *>(parent.internalPointer());
+  
+  AbstractTreeItem *childItem = parentItem->childById(parent.column(), id);
+  
+  if(childItem)
+    return createIndex(childItem->row(), 0, childItem);
+  else
+    return QModelIndex();
+}
+
+QModelIndex TreeModel::indexByItem(AbstractTreeItem *item, int column) const {
+  if(item == 0) {
+    qWarning() << "TreeModel::indexByItem(AbstractTreeItem *item) received NULL-Pointer";
+    return QModelIndex();
+  }
+  
+  if(item == rootItem)
+    return QModelIndex();
+  else
+    return createIndex(item->row(), column, item);
+
+}
+
 QModelIndex TreeModel::parent(const QModelIndex &index) const {
   if(!index.isValid())
     return QModelIndex();
   
-  TreeItem *childItem = static_cast<TreeItem*>(index.internalPointer());
-  TreeItem *parentItem = childItem->parent();
+  AbstractTreeItem *childItem = static_cast<AbstractTreeItem *>(index.internalPointer());
+  AbstractTreeItem *parentItem = static_cast<AbstractTreeItem *>(childItem->parent());
   
   if(parentItem == rootItem)
     return QModelIndex();
   
-  return createIndex(parentItem->row(), 0, parentItem);
+  return createIndex(parentItem->row(), childItem->column(), parentItem);
 }
 
 int TreeModel::rowCount(const QModelIndex &parent) const {
-  TreeItem *parentItem;
-  if(parent.column() > 0)
-    return 0;
-  
+  AbstractTreeItem *parentItem;
   if(!parent.isValid())
     parentItem = rootItem;
   else
-    parentItem = static_cast<TreeItem*>(parent.internalPointer());
-  
-  return parentItem->childCount();
+    parentItem = static_cast<AbstractTreeItem*>(parent.internalPointer());
+
+  return parentItem->childCount(parent.column());
 }
 
 int TreeModel::columnCount(const QModelIndex &parent) const {
-  if(parent.isValid())
-    return static_cast<TreeItem*>(parent.internalPointer())->columnCount();
-  else
-    return rootItem->columnCount();
+  Q_UNUSED(parent)
+  // since there the Qt Views don't draw more columns than the header has columns
+  // we can be lazy and simply return the count of header columns
+  // actually this gives us more freedom cause we don't have to ensure that a rows parent
+  // has equal or more columns than that row
+  
+//   if(parent.isValid()) {
+//     AbstractTreeItem *child;
+//     if(child = static_cast<AbstractTreeItem *>(parent.internalPointer())->child(parent.column(), parent.row()))
+//       return child->columnCount();
+//     else
+//       return static_cast<AbstractTreeItem*>(parent.internalPointer())->columnCount();
+//   } else {
+//     return rootItem->columnCount();
+//   }
+
+  return rootItem->columnCount();
 }
 
 QVariant TreeModel::data(const QModelIndex &index, int role) const {
   if(!index.isValid())
     return QVariant();
 
-  TreeItem *item = static_cast<TreeItem*>(index.internalPointer());
+  AbstractTreeItem *item = static_cast<AbstractTreeItem *>(index.internalPointer());
   return item->data(index.column(), role);
 }
 
+bool TreeModel::setData(const QModelIndex &index, const QVariant &value, int role) {
+  if(!index.isValid())
+    return false;
+
+  AbstractTreeItem *item = static_cast<AbstractTreeItem *>(index.internalPointer());
+  return item->setData(index.column(), value, role);
+}
+
 Qt::ItemFlags TreeModel::flags(const QModelIndex &index) const {
+  AbstractTreeItem *item;
   if(!index.isValid())
-    return 0;
+    item = rootItem;
   else
-    return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+    item = static_cast<AbstractTreeItem *>(index.internalPointer());
+  return item->flags();
 }
 
 QVariant TreeModel::headerData(int section, Qt::Orientation orientation, int role) const {
@@ -161,24 +410,104 @@ QVariant TreeModel::headerData(int section, Qt::Orientation orientation, int rol
     return QVariant();
 }
 
-bool TreeModel::removeRow(int row, const QModelIndex &parent) {
-  beginRemoveRows(parent, row, row);
-  TreeItem *item = static_cast<TreeItem*>(parent.internalPointer());
-  item->removeChild(row);
-  endRemoveRows();
-  return true;
+void TreeModel::itemDataChanged(int column) {
+  AbstractTreeItem *item = qobject_cast<AbstractTreeItem *>(sender());
+  QModelIndex leftIndex, rightIndex;
+
+  if(item == rootItem)
+    return;
+
+  if(column == -1) {
+    leftIndex = createIndex(item->row(), 0, item);
+    rightIndex = createIndex(item->row(), item->columnCount()-1, item);
+  } else {
+    leftIndex = createIndex(item->row(), column, item);
+    rightIndex = leftIndex;
+  }
+
+  emit dataChanged(leftIndex, rightIndex);
 }
 
-bool TreeModel::removeRows(int row, int count, const QModelIndex &parent) {
-  beginRemoveRows(parent, row, row + count - 1);
-  TreeItem *item = static_cast<TreeItem*>(parent.internalPointer());
-  for(int i = row; i < row + count; i++) {
-    item->removeChild(i);
+void TreeModel::connectItem(AbstractTreeItem *item) {
+  connect(item, SIGNAL(dataChanged(int)),
+	  this, SLOT(itemDataChanged(int)));
+  
+  connect(item, SIGNAL(beginAppendChilds(int, int, int)),
+	  this, SLOT(beginAppendChilds(int, int, int)));
+  connect(item, SIGNAL(endAppendChilds()),
+	  this, SLOT(endAppendChilds()));
+  
+  connect(item, SIGNAL(beginRemoveChilds(int, int, int)),
+	  this, SLOT(beginRemoveChilds(int, int, int)));
+  connect(item, SIGNAL(endRemoveChilds()),
+	  this, SLOT(endRemoveChilds()));
+}
+
+void TreeModel::beginAppendChilds(int column, int firstRow, int lastRow) {
+  AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
+  if(!parentItem) {
+    qWarning() << "TreeModel::beginAppendChilds(): cannot append Childs to unknown parent";
+    return;
   }
+  QModelIndex parent = indexByItem(parentItem, column);
+  Q_ASSERT(!_aboutToRemoveOrInsert);
+  
+  _aboutToRemoveOrInsert = true;
+  _childStatus = ChildStatus(parent, rowCount(parent), firstRow, lastRow);
+  beginInsertRows(parent, firstRow, lastRow);
+}
+
+void TreeModel::endAppendChilds() {
+  AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
+  if(!parentItem) {
+    qWarning() << "TreeModel::endAppendChilds(): cannot append Childs to unknown parent";
+    return;
+  }
+  Q_ASSERT(_aboutToRemoveOrInsert);
+  ChildStatus cs = _childStatus;
+  QModelIndex parent = indexByItem(parentItem, cs.parent.column());
+  Q_ASSERT(cs.parent == parent);
+  Q_ASSERT(rowCount(parent) == cs.childCount + cs.end - cs.start + 1);
+
+  _aboutToRemoveOrInsert = false;
+  for(int i = cs.start; i <= cs.end; i++) {
+    connectItem(parentItem->child(parent.column(), i));
+  }
+  endInsertRows();
+}
+
+void TreeModel::beginRemoveChilds(int column, int firstRow, int lastRow) {
+  AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
+  if(!parentItem) {
+    qWarning() << "TreeModel::beginRemoveChilds(): cannot append Childs to unknown parent";
+    return;
+  }
+  QModelIndex parent = indexByItem(parentItem, column);
+  Q_ASSERT(firstRow <= lastRow);
+  Q_ASSERT(parentItem->childCount(column) > lastRow);
+  Q_ASSERT(!_aboutToRemoveOrInsert);
+  
+  _aboutToRemoveOrInsert = true;
+  _childStatus = ChildStatus(parent, rowCount(parent), firstRow, lastRow);
+  beginRemoveRows(parent, firstRow, lastRow);
+}
+
+void TreeModel::endRemoveChilds() {
+  AbstractTreeItem *parentItem = qobject_cast<AbstractTreeItem *>(sender());
+  if(!parentItem) {
+    qWarning() << "TreeModel::endRemoveChilds(): cannot append Childs to unknown parent";
+    return;
+  }
+  Q_ASSERT(_aboutToRemoveOrInsert);
+  ChildStatus cs = _childStatus;
+  QModelIndex parent = indexByItem(parentItem, cs.parent.column());
+  Q_ASSERT(cs.parent == parent);
+  Q_ASSERT(rowCount(parent) == cs.childCount - cs.end + cs.start - 1);
+  
+  _aboutToRemoveOrInsert = false;
   endRemoveRows();
-  return true;
 }
 
 void TreeModel::clear() {
-  removeRows(0, rowCount(), QModelIndex());
+  rootItem->removeAllChilds();
 }