f07cba39d5
Failure to do so was causing a crash because port widget was trying to disconnect signal from a non-existent port (corresponding to the current index that was not reset) after the portgroup reconnected or another portgroup came up and a port was selected in the port list. This bug was a regression caused by the refactoring changes when portwidget (and streamswidget) was extracted from portswindow.
392 lines
11 KiB
C++
392 lines
11 KiB
C++
/*
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Copyright (C) 2010 Srivats P.
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This file is part of "Ostinato"
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This is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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#include "stream.h"
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#include "streammodel.h"
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#include "portgrouplist.h"
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#include "qicon.h"
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#include <QMimeData>
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const QLatin1String kStreamsMimeType("application/vnd.ostinato.streams");
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StreamModel::StreamModel(PortGroupList *p, QObject *parent)
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: QAbstractTableModel(parent)
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{
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pgl = p;
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mCurrentPort = NULL;
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}
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int StreamModel::rowCount(const QModelIndex &parent) const
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{
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if (parent.isValid())
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return 0;
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if (mCurrentPort)
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return mCurrentPort->numStreams();
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else
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return 0;
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}
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int StreamModel::columnCount(const QModelIndex &/*parent*/) const
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{
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int count = StreamMaxFields;
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if (mCurrentPort &&
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(mCurrentPort->transmitMode() == OstProto::kInterleavedTransmit))
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count--;
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return count;
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}
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Qt::ItemFlags StreamModel::flags(const QModelIndex &index) const
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{
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Qt::ItemFlags flags = QAbstractTableModel::flags(index);
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switch (index.column())
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{
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case StreamIcon:
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break;
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case StreamName:
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flags |= Qt::ItemIsEditable;
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break;
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case StreamStatus:
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flags |= Qt::ItemIsUserCheckable;
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break;
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case StreamNextWhat:
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flags |= Qt::ItemIsEditable;
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break;
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default:
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//qFatal("Missed case in switch!");
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break;
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}
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return flags;
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}
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QVariant StreamModel::data(const QModelIndex &index, int role) const
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{
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// Check for a valid index
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if (!index.isValid())
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return QVariant();
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// Check for row/column limits
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if (index.row() >= mCurrentPort->numStreams())
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return QVariant();
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if (index.column() >= StreamMaxFields)
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return QVariant();
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if (mCurrentPort == NULL)
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return QVariant();
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// Return data based on field and role
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switch(index.column())
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{
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case StreamIcon:
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{
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if (role == Qt::DecorationRole)
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return QIcon(":/icons/stream_edit.png");
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else
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return QVariant();
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break;
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}
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case StreamName:
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{
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if ((role == Qt::DisplayRole) || (role == Qt::EditRole))
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return mCurrentPort->streamByIndex(index.row())->name();
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else
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return QVariant();
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break;
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}
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case StreamStatus:
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{
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if (role == Qt::CheckStateRole)
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{
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if (mCurrentPort->streamByIndex(index.row())->isEnabled())
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return Qt::Checked;
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else
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return Qt::Unchecked;
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}
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else
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return QVariant();
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break;
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}
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case StreamNextWhat:
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{
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int val = mCurrentPort->streamByIndex(index.row())->nextWhat();
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if (role == Qt::DisplayRole)
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return nextWhatOptionList().at(val);
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else if (role == Qt::EditRole)
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return val;
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else
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return QVariant();
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break;
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}
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default:
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qFatal("-------------UNHANDLED STREAM FIELD----------------");
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}
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return QVariant();
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}
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bool StreamModel::setData(const QModelIndex &index, const QVariant &value, int role)
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{
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if (mCurrentPort == NULL)
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return false;
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if (index.isValid())
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{
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switch (index.column())
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{
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// Edit Supported Fields
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case StreamName:
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mCurrentPort->mutableStreamByIndex(index.row())
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->setName(value.toString());
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emit(dataChanged(index, index));
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return true;
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case StreamStatus:
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mCurrentPort->mutableStreamByIndex(index.row())
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->setEnabled(value.toBool());
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emit(dataChanged(index, index));
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return true;
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case StreamNextWhat:
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if (role == Qt::EditRole)
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{
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mCurrentPort->mutableStreamByIndex(index.row())->setNextWhat(
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(Stream::NextWhat)value.toInt());
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emit(dataChanged(index, index));
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return true;
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}
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else
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return false;
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// Edit Not Supported Fields
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case StreamIcon:
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return false;
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// Unhandled Stream Field
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default:
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qDebug("-------------UNHANDLED STREAM FIELD----------------");
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break;
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}
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}
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return false;
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}
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QVariant StreamModel::headerData(int section, Qt::Orientation orientation, int role) const
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{
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if (role != Qt::DisplayRole)
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return QVariant();
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if (orientation == Qt::Horizontal)
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{
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switch(section)
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{
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case StreamIcon:
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return QString("");
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break;
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case StreamName:
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return QString("Name");
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break;
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case StreamStatus:
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return QString("");
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break;
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case StreamNextWhat:
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return QString("Goto");
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break;
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default:
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qDebug("-------------UNHANDLED STREAM FIELD----------------");
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break;
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}
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}
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else
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return QString("%1").arg(section+1);
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return QVariant();
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}
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QStringList StreamModel::mimeTypes() const
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{
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return QStringList() << kStreamsMimeType;
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}
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QMimeData* StreamModel::mimeData(const QModelIndexList &indexes) const
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{
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using ::google::protobuf::uint8;
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if (indexes.isEmpty())
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return nullptr;
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// indexes may include multiple columns for a row - but we are only
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// interested in rows 'coz we have a single data for all columns
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// XXX: use QMap instead of QSet to keep rows in sorted order
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QMap<int, int> rows;
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foreach(QModelIndex index, indexes)
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rows.insert(index.row(), index.row());
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OstProto::StreamConfigList streams;
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streams.mutable_port_id()->set_id(mCurrentPort->id());
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foreach(int row, rows) {
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OstProto::Stream *stream = streams.add_stream();
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mCurrentPort->streamByIndex(row)->protoDataCopyInto(*stream);
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}
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QByteArray data;
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data.resize(streams.ByteSize());
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streams.SerializeWithCachedSizesToArray((uint8*)data.data());
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//qDebug("copy %s", streams.DebugString().c_str());
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//TODO: copy DebugString as text/plain?
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QMimeData *mimeData = new QMimeData();
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mimeData->setData(kStreamsMimeType, data);
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return mimeData; // XXX: caller is expected to take ownership and free!
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}
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bool StreamModel::dropMimeData(const QMimeData *data, Qt::DropAction action,
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int row, int /*column*/, const QModelIndex &parent)
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{
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if (!data)
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return false;
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if (!data->hasFormat(kStreamsMimeType))
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return false;
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if (action != Qt::CopyAction)
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return false;
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OstProto::StreamConfigList streamsData;
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QByteArray ba(data->data(kStreamsMimeType));
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streamsData.ParseFromArray((void*)ba.constData(), ba.size());
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//qDebug("paste %s", streamsData.DebugString().c_str());
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QList<Stream*> streams;
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for (int i = 0; i < streamsData.stream_size(); i++) {
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Stream *stream = new Stream;
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stream->protoDataCopyFrom(streamsData.stream(i));
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streams.append(stream);
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}
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if ((row < 0) || (row > rowCount(parent)))
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row = rowCount(parent);
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// Delete rows that we are going to overwrite
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if (row < rowCount(parent))
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removeRows(row, qMin(rowCount() - row, streams.size()));
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return insert(row, streams); // callee will free streams after insert
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}
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/*!
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* Inserts streams before the given row
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*
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* StreamModel takes ownership of the passed streams; caller should
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* not try to access them after calling this function
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*/
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bool StreamModel::insert(int row, QList<Stream*> &streams)
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{
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int count = streams.size();
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qDebug("insert row = %d", row);
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qDebug("insert count = %d", count);
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beginInsertRows(QModelIndex(), row, row+count-1);
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for (int i = 0; i < count; i++) {
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OstProto::Stream s;
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streams.at(i)->protoDataCopyInto(s);
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mCurrentPort->newStreamAt(row+i, &s);
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delete streams.at(i);
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}
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streams.clear();
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endInsertRows();
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return true;
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}
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bool StreamModel::insertRows(int row, int count, const QModelIndex &/*parent*/)
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{
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qDebug("insertRows() row = %d", row);
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qDebug("insertRows() count = %d", count);
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beginInsertRows(QModelIndex(), row, row+count-1);
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for (int i = 0; i < count; i++)
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mCurrentPort->newStreamAt(row);
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endInsertRows();
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return true;
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}
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bool StreamModel::removeRows(int row, int count, const QModelIndex &/*parent*/)
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{
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qDebug("removeRows() row = %d", row);
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qDebug("removeRows() count = %d", count);
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beginRemoveRows(QModelIndex(), row, row+count-1);
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for (int i = 0; i < count; i++)
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{
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mCurrentPort->deleteStreamAt(row);
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}
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endRemoveRows();
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return true;
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}
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// --------------------- SLOTS ------------------------
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void StreamModel::setCurrentPortIndex(const QModelIndex ¤t)
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{
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beginResetModel();
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if (!current.isValid() || !pgl->isPort(current))
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{
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qDebug("current is either invalid or not a port");
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mCurrentPort = NULL;
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}
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else
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{
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qDebug("change to valid port");
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if (mCurrentPort)
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{
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disconnect(mCurrentPort, SIGNAL(streamListChanged(int, int)),
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this, SLOT(when_mCurrentPort_streamListChanged(int, int)));
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}
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quint16 pg = current.internalId() >> 16;
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// TODO: make mCurrentPort a smart weak pointer
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mCurrentPort = pgl->mPortGroups[pgl->indexOfPortGroup(pg)]->mPorts[current.row()];
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connect(mCurrentPort, SIGNAL(streamListChanged(int, int)),
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this, SLOT(when_mCurrentPort_streamListChanged(int, int)));
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}
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endResetModel();
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}
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void StreamModel::when_mCurrentPort_streamListChanged(int portGroupId,
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int portId)
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{
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qDebug("In %s", __FUNCTION__);
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if (mCurrentPort)
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{
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if ((quint32(portGroupId) == mCurrentPort->portGroupId())
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&& (quint32(portId) == mCurrentPort->id()))
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{
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beginResetModel();
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endResetModel();
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}
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}
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}
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