src/uisupport/bufferview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-08 by the Quassel Project                          *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
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  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include "client.h"
  22 #include "buffersyncer.h"
  23 #include "bufferview.h"
  24 #include "networkmodel.h"
  25
  26 /*****************************************
  27 * The TreeView showing the Buffers
  28 *****************************************/
  29 // Please be carefull when reimplementing methods which are used to inform the view about changes to the data
  30 // to be on the safe side: call QTreeView's method aswell
  31 BufferView::BufferView(QWidget *parent) : QTreeView(parent) {
  32   setContextMenuPolicy(Qt::CustomContextMenu);
  33
  34   connect(this, SIGNAL(customContextMenuRequested(const QPoint &)),
  35           this, SLOT(showContextMenu(const QPoint &)));
  36 }
  37
  38 void BufferView::init() {
  39   setIndentation(10);
  40   header()->setContextMenuPolicy(Qt::ActionsContextMenu);
  41   hideColumn(1);
  42   hideColumn(2);
  43   expandAll();
  44
  45   setAnimated(true);
  46
  47 #ifndef QT_NO_DRAGANDDROP
  48   setDragEnabled(true);
  49   setAcceptDrops(true);
  50   setDropIndicatorShown(true);
  51 #endif
  52
  53   setSortingEnabled(true);
  54   sortByColumn(0, Qt::AscendingOrder);
  55   connect(this, SIGNAL(activated(QModelIndex)), this, SLOT(joinChannel(QModelIndex)));
  56 }
  57
  58 void BufferView::setFilteredModel(QAbstractItemModel *model, BufferViewFilter::Modes mode, QList<NetworkId> nets) {
  59   BufferViewFilter *filter = new BufferViewFilter(model, mode, nets);
  60   setModel(filter);
  61   connect(this, SIGNAL(removeBuffer(const QModelIndex &)), filter, SLOT(removeBuffer(const QModelIndex &)));
  62 }
  63
  64 void BufferView::setModel(QAbstractItemModel *model) {
  65   delete selectionModel();
  66   QTreeView::setModel(model);
  67   init();
  68
  69   // remove old Actions
  70   QList<QAction *> oldactions = header()->actions();
  71   foreach(QAction *action, oldactions) {
  72     header()->removeAction(action);
  73     action->deleteLater();
  74   }
  75
  76   QString sectionName;
  77   QAction *showSection;
  78   for(int i = 0; i < model->columnCount(); i++) {
  79     sectionName = (model->headerData(i, Qt::Horizontal, Qt::DisplayRole)).toString();
  80     showSection = new QAction(sectionName, header());
  81     showSection->setCheckable(true);
  82     showSection->setChecked(!isColumnHidden(i));
  83     showSection->setProperty("column", i);
  84     connect(showSection, SIGNAL(toggled(bool)), this, SLOT(toggleHeader(bool)));
  85     header()->addAction(showSection);
  86   }
  87
  88 }
  89
  90 void BufferView::joinChannel(const QModelIndex &index) {
  91   BufferInfo::Type bufferType = (BufferInfo::Type)index.data(NetworkModel::BufferTypeRole).value<int>();
  92
  93   if(bufferType != BufferInfo::ChannelBuffer)
  94     return;
  95
  96   BufferInfo bufferInfo = index.data(NetworkModel::BufferInfoRole).value<BufferInfo>();
  97
  98   Client::userInput(bufferInfo, QString("/JOIN %1").arg(bufferInfo.bufferName()));
  99 }
 100
 101 void BufferView::keyPressEvent(QKeyEvent *event) {
 102   if(event->key() == Qt::Key_Backspace || event->key() == Qt::Key_Delete) {
 103     event->accept();
 104     QModelIndex index = selectionModel()->selectedIndexes().first();
 105     if(index.isValid()) {
 106       emit removeBuffer(index);
 107     }
 108   }
 109   QTreeView::keyPressEvent(event);
 110 }
 111
 112 // ensure that newly inserted network nodes are expanded per default
 113 void BufferView::rowsInserted(const QModelIndex & parent, int start, int end) {
 114   QTreeView::rowsInserted(parent, start, end);
 115   if(model()->rowCount(parent) == 1 && parent != QModelIndex()) {
 116     // without updating the parent the expand will have no effect... Qt Bug?
 117     update(parent);
 118     expand(parent);
 119   }
 120 }
 121
 122 void BufferView::toggleHeader(bool checked) {
 123   QAction *action = qobject_cast<QAction *>(sender());
 124   header()->setSectionHidden((action->property("column")).toInt(), !checked);
 125 }
 126
 127 void BufferView::showContextMenu(const QPoint &pos) {
 128   QModelIndex index = indexAt(pos);
 129   if(!index.isValid() || index.data(NetworkModel::ItemTypeRole) != NetworkModel::BufferItemType) return;
 130   BufferInfo bufferInfo = index.data(NetworkModel::BufferInfoRole).value<BufferInfo>();
 131   if(bufferInfo.type() != BufferInfo::ChannelBuffer && bufferInfo.type() != BufferInfo::QueryBuffer) return;
 132   QMenu contextMenu(this);
 133   QAction *removeBufferAction = contextMenu.addAction(tr("Delete buffer"));
 134   if(bufferInfo.type() == BufferInfo::ChannelBuffer && index.data(NetworkModel::ItemActiveRole).toBool())
 135      removeBufferAction->setEnabled(false);
 136
 137   QAction *result = contextMenu.exec(QCursor::pos());
 138   if(result == removeBufferAction) {
 139     int res = QMessageBox::question(this, tr("Remove buffer permanently?"),
 140                                     tr("Do you want to delete the buffer \"%1\" permanently? This will delete all related data, including all backlog "
 141                                        "data, from the core's database!").arg(bufferInfo.bufferName()),
 142                                         QMessageBox::Yes|QMessageBox::No, QMessageBox::No);
 143     if(res == QMessageBox::Yes) {
 144       Client::bufferSyncer()->requestRemoveBuffer(bufferInfo.bufferId());
 145     }
 146   }
 147 }
 148