src/qtui/nicklistwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-08 by the Quassel Project                          *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
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   8  *   (at your option) version 3.                                           *
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  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
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  20
  21 #include "nicklistwidget.h"
  22
  23 #include "buffer.h"
  24 #include "nickview.h"
  25 #include "client.h"
  26 #include "networkmodel.h"
  27 #include "buffermodel.h"
  28 #include "nickviewfilter.h"
  29
  30 NickListWidget::NickListWidget(QWidget *parent)
  31   : QWidget(parent),
  32     _bufferModel(0),
  33     _selectionModel(0)
  34 {
  35   ui.setupUi(this);
  36 }
  37
  38 void NickListWidget::setModel(BufferModel *bufferModel) {
  39   if(_bufferModel) {
  40     disconnect(_bufferModel, 0, this, 0);
  41   }
  42
  43   _bufferModel = bufferModel;
  44
  45   if(bufferModel) {
  46     connect(bufferModel, SIGNAL(rowsAboutToBeRemoved(QModelIndex, int, int)),
  47             this, SLOT(rowsAboutToBeRemoved(QModelIndex, int, int)));
  48   }
  49 }
  50
  51 void NickListWidget::setSelectionModel(QItemSelectionModel *selectionModel) {
  52   if(_selectionModel) {
  53     disconnect(_selectionModel, 0, this, 0);
  54   }
  55
  56   _selectionModel = selectionModel;
  57
  58   if(selectionModel) {
  59     connect(selectionModel, SIGNAL(currentChanged(QModelIndex, QModelIndex)),
  60             this, SLOT(currentChanged(QModelIndex, QModelIndex)));
  61   }
  62 }
  63
  64 void NickListWidget::currentChanged(const QModelIndex &current, const QModelIndex &previous) {
  65   BufferInfo::Type bufferType = (BufferInfo::Type)current.data(NetworkModel::BufferTypeRole).toInt();
  66   BufferId newBufferId = current.data(NetworkModel::BufferIdRole).value<BufferId>();
  67   BufferId oldBufferId = previous.data(NetworkModel::BufferIdRole).value<BufferId>();
  68
  69   if(bufferType != BufferInfo::ChannelBuffer) {
  70     ui.stackedWidget->setCurrentWidget(ui.emptyPage);
  71     return;
  72   }
  73
  74   if(newBufferId == oldBufferId)
  75     return;
  76
  77   if(nickViews.contains(newBufferId)) {
  78     ui.stackedWidget->setCurrentWidget(nickViews.value(newBufferId));
  79   } else {
  80     NickView *view = new NickView(this);
  81     NickViewFilter *filter = new NickViewFilter(newBufferId, Client::networkModel());
  82     view->setModel(filter);
  83     QModelIndex source_current = Client::bufferModel()->mapToSource(current);
  84     view->setRootIndex(filter->mapFromSource(source_current));
  85     view->expandAll();
  86     nickViews[newBufferId] = view;
  87     ui.stackedWidget->addWidget(view);
  88     ui.stackedWidget->setCurrentWidget(view);
  89   }
  90 }
  91
  92 void NickListWidget::rowsAboutToBeRemoved(const QModelIndex &parent, int start, int end) {
  93   Q_ASSERT(model());
  94   if(!parent.isValid()) {
  95     // ok this means that whole networks are about to be removed
  96     // we can't determine which buffers are affect, so we hope that all nets are removed
  97     // this is the most common case (for example disconnecting from the core or terminating the clint)
  98     NickView *nickView;
  99     QHash<BufferId, NickView *>::iterator iter = nickViews.begin();
 100     while(iter != nickViews.end()) {
 101       nickView = *iter;
 102       iter = nickViews.erase(iter);
 103       ui.stackedWidget->removeWidget(nickView);
 104       QAbstractItemModel *model = nickView->model();
 105       nickView->setModel(0);
 106       if(QSortFilterProxyModel *filter = qobject_cast<QSortFilterProxyModel *>(model))
 107         filter->setSourceModel(0);
 108       model->deleteLater();
 109       nickView->deleteLater();
 110     }
 111   } else {
 112     // check if there are explicitly buffers removed
 113     for(int i = start; i <= end; i++) {
 114       QVariant variant = parent.child(i,0).data(NetworkModel::BufferIdRole);
 115       if(!variant.isValid())
 116         continue;
 117
 118       BufferId bufferId = qVariantValue<BufferId>(variant);
 119       removeBuffer(bufferId);
 120     }
 121   }
 122 }
 123
 124 void NickListWidget::removeBuffer(BufferId bufferId) {
 125   if(!nickViews.contains(bufferId))
 126     return;
 127
 128   NickView *view = nickViews.take(bufferId);
 129   ui.stackedWidget->removeWidget(view);
 130   QAbstractItemModel *model = view->model();
 131   view->setModel(0);
 132   if(QSortFilterProxyModel *filter = qobject_cast<QSortFilterProxyModel *>(model))
 133     filter->setSourceModel(0);
 134   model->deleteLater();
 135   view->deleteLater();
 136 }
 137
 138 QSize NickListWidget::sizeHint() const {
 139   QWidget *currentWidget = ui.stackedWidget->currentWidget();
 140   if(!currentWidget || currentWidget == ui.emptyPage)
 141     return QSize(100, height());
 142   else
 143     return currentWidget->sizeHint();
 144 }