Work around problems in QTreeView when using Qt 4.8

[quassel.git] / src / uisupport / nickview.cpp

diff --git a/src/uisupport/nickview.cpp b/src/uisupport/nickview.cpp
index fe4b9e7..34fb554 100644 (file)
--- a/src/uisupport/nickview.cpp
+++ b/src/uisupport/nickview.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2005-08 by the Quassel Project                          *
+ *   Copyright (C) 2005-09 by the Quassel Project                          *
  *   devel@quassel-irc.org                                                 *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -19,38 +19,144 @@
  ***************************************************************************/
 
 #include "nickview.h"
-#include "nickmodel.h"
 
+#include <QApplication>
 #include <QHeaderView>
+#include <QScrollBar>
 #include <QDebug>
+#include <QMenu>
 
-NickView::NickView(QWidget *parent) : QTreeView(parent) {
-  setGeometry(0, 0, 30, 30);
-  //setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
+#include "buffermodel.h"
+#include "client.h"
+#include "contextmenuactionprovider.h"
+#include "graphicalui.h"
+#include "nickview.h"
+#include "nickviewfilter.h"
+#include "networkmodel.h"
+#include "types.h"
+
+class ExpandAllEvent : public QEvent {
+public:
+  ExpandAllEvent() : QEvent(QEvent::User) {}
+};
 
+NickView::NickView(QWidget *parent)
+  : QTreeView(parent)
+{
   setIndentation(10);
   header()->hide();
-  header()->hideSection(1);
-  setAnimated(true);
+  setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
   setSortingEnabled(true);
   sortByColumn(0, Qt::AscendingOrder);
 
-//   filteredModel = new FilteredNickModel(this);
-//   QTreeView::setModel(filteredModel);
+  setContextMenuPolicy(Qt::CustomContextMenu);
+  setSelectionMode(QAbstractItemView::ExtendedSelection);
+
+  // breaks with Qt 4.8
+  if(QString("4.8.0") > qVersion()) // FIXME breaks with Qt versions >= 4.10!
+    setAnimated(true);
+
+  connect(this, SIGNAL(customContextMenuRequested(const QPoint&)), SLOT(showContextMenu(const QPoint&)));
+
+#if defined Q_WS_QWS || defined Q_WS_X11
+  connect(this, SIGNAL(doubleClicked(QModelIndex)), SLOT(startQuery(QModelIndex)));
+#else
+  // afaik this is better on Mac and Windows
+  connect(this, SIGNAL(activated(QModelIndex)), SLOT(startQuery(QModelIndex)));
+#endif
 }
 
-NickView::~NickView() {
+void NickView::init() {
+  if(!model())
+    return;
+
+  for(int i = 1; i < model()->columnCount(); i++)
+    setColumnHidden(i, true);
 
+  connect(selectionModel(), SIGNAL(currentChanged(QModelIndex, QModelIndex)), SIGNAL(selectionUpdated()));
+  connect(selectionModel(), SIGNAL(selectionChanged(QItemSelection, QItemSelection)), SIGNAL(selectionUpdated()));
+}
+
+void NickView::setModel(QAbstractItemModel *model_) {
+  if(model())
+    disconnect(model(), 0, this, 0);
 
+  QTreeView::setModel(model_);
+  init();
 }
 
-// void NickView::setModel(NickModel *model) {
-//   filteredModel->setSourceModel(model);
-//   expandAll();
-// }
+void NickView::rowsInserted(const QModelIndex &parent, int start, int end) {
+  QTreeView::rowsInserted(parent, start, end);
+  if(model()->data(parent, NetworkModel::ItemTypeRole) == NetworkModel::UserCategoryItemType && !isExpanded(parent)) {
+    QCoreApplication::postEvent(this, new ExpandAllEvent);
+  }
+}
 
-void NickView::rowsInserted(const QModelIndex &index, int start, int end) {
-  QTreeView::rowsInserted(index, start, end);
-  expandAll();  // FIXME We need to do this more intelligently. Maybe a pimped TreeView?
+void NickView::setRootIndex(const QModelIndex &index) {
+  QAbstractItemView::setRootIndex(index);
+  if(index.isValid())
+    QCoreApplication::postEvent(this, new ExpandAllEvent);
 }
 
+QModelIndexList NickView::selectedIndexes() const {
+  QModelIndexList indexList = QTreeView::selectedIndexes();
+
+  // make sure the item we clicked on is first
+  if(indexList.contains(currentIndex())) {
+    indexList.removeAll(currentIndex());
+    indexList.prepend(currentIndex());
+  }
+
+  return indexList;
+}
+
+void NickView::showContextMenu(const QPoint &pos ) {
+  Q_UNUSED(pos);
+
+  QMenu contextMenu(this);
+  GraphicalUi::contextMenuActionProvider()->addActions(&contextMenu, selectedIndexes());
+  contextMenu.exec(QCursor::pos());
+}
+
+void NickView::startQuery(const QModelIndex &index) {
+  if(index.data(NetworkModel::ItemTypeRole) != NetworkModel::IrcUserItemType)
+    return;
+
+  IrcUser *ircUser = qobject_cast<IrcUser *>(index.data(NetworkModel::IrcUserRole).value<QObject *>());
+  NetworkId networkId = index.data(NetworkModel::NetworkIdRole).value<NetworkId>();
+  if(!ircUser || !networkId.isValid())
+    return;
+
+  Client::bufferModel()->switchToOrStartQuery(networkId, ircUser->nick());
+}
+
+void NickView::customEvent(QEvent *event) {
+  // THIS IS A REPLACEMENT FOR expandAll()
+  /* WARNING: do not call expandAll()!
+   * it fucks up big time in combination with sorting and changing the rootIndex
+   * the following sequence of commands leads to unexpected behavior when inserting new items
+   * setSortingEnabled(true);
+   * setModel();
+   * expandAll();
+   * setRootIndex();
+   */
+  if(event->type() != QEvent::User)
+    return;
+
+  if(!model())
+    return;
+
+  QModelIndex topLevelIdx;
+  for(int i = 0; i < model()->rowCount(rootIndex()); i++) {
+    topLevelIdx = model()->index(i, 0, rootIndex());
+    if(isExpanded(topLevelIdx))
+      continue;
+    else {
+      expand(topLevelIdx);
+      if(i < model()->rowCount(rootIndex()) - 1)
+        QCoreApplication::postEvent(this, new ExpandAllEvent);
+      break;
+    }
+  }
+  event->accept();
+}