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Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
Marek Rosa - - Load All Authors

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r630:dd8db9a3a988
r630:dd8db9a3a988
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customtablemodel.cpp
204 lines | 5.7 KiB | text/x-c | CppLexer
/ examples / tablemodelchart / customtablemodel.cpp
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Marek Rosa
Table model data example
 r519 #include "customtablemodel.h"
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 #include <QVector>
Marek Rosa
Table model data example
 r519
CustomTableModel::CustomTableModel(QObject *parent) :
QAbstractTableModel(parent)
{
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // m_points.append(QPointF(10, 50));
// m_labels.append("Apples");
// m_points.append(QPointF(60, 70));
// m_labels.append("Oranges");
// m_points.append(QPointF(110, 50));
// m_labels.append("Bananas");
// m_points.append(QPointF(140, 40));
// m_labels.append("Lemons");
// m_points.append(QPointF(200, 150));
// m_labels.append("Plums");
// m_points.append(QPointF(225, 75));
// m_labels.append("Pearls");
// m_data
for (int i = 0; i < 6; i++)
{
QVector<qreal>* dataVec = new QVector<qreal>(6);
for (int k = 0; k < dataVec->size(); k++)
if (k%2 == 0)
dataVec->replace(k, i * 50 + qrand()%20);
else
dataVec->replace(k, qrand()%100);
m_data.append(dataVec);
m_labels.append(QString("Row: %1").arg((i + 1)));
}
Marek Rosa
Table model data example
 r519 }
int CustomTableModel::rowCount(const QModelIndex & parent) const
{
Tero Ahola
A few more warnings removed from examples
 r613 Q_UNUSED(parent)
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // return m_points.count();
return m_data.count();
Marek Rosa
Table model data example
 r519 }
int CustomTableModel::columnCount(const QModelIndex & parent) const
{
Tero Ahola
A few more warnings removed from examples
 r613 Q_UNUSED(parent)
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // return 3;
return 6;
Marek Rosa
Table model data example
 r519 }
QVariant CustomTableModel::headerData (int section, Qt::Orientation orientation, int role ) const
{
if (role != Qt::DisplayRole)
return QVariant();
if (orientation == Qt::Horizontal)
{
switch(section)
{
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // case 0:
// return "x";
// case 1:
// return "y";
// case 2:
case 6:
Marek Rosa
Table model data example
 r519 return "Fruit";
Marek Rosa
QXYSeries: model data orientation added. QBarSeries: some model data function placeholders
 r527 default:
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 if (section%2 == 0)
return "x";
else
return "y";
// return "What?";
Marek Rosa
Table model data example
 r519 }
}
else
return QString("%1").arg(section + 1);
}
QVariant CustomTableModel::data(const QModelIndex & index, int role) const
{
if (role == Qt::DisplayRole)
{
switch(index.column())
{
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // case 0:
// return m_points[index.row()].x();
// case 1:
// return m_points[index.row()].y();
// case 2:
case 6:
Marek Rosa
Table model data example
 r519 return m_labels[index.row()];
default:
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 return m_data[index.row()]->at(index.column());
Tero Ahola
A few more warnings removed from examples
 r613 break;
Marek Rosa
Table model data example
 r519 }
}
else if (role == Qt::EditRole)
{
switch(index.column())
{
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // case 0:
// return m_points[index.row()].x();
// case 1:
// return m_points[index.row()].y();
// case 2:
case 6:
Marek Rosa
Table model data example
 r519 return m_labels[index.row()];
default:
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 return m_data[index.row()]->at(index.column());
Tero Ahola
A few more warnings removed from examples
 r613 break;
Marek Rosa
Table model data example
 r519 }
}
Tero Ahola
A few more warnings removed from examples
 r613 return QVariant();
Marek Rosa
Table model data example
 r519 }
bool CustomTableModel::setData ( const QModelIndex & index, const QVariant & value, int role)
{
if (index.isValid() && role == Qt::EditRole)
{
switch(index.column())
{
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // case 0:
// m_points[index.row()].setX(value.toDouble());
// break;
// case 1:
// m_points[index.row()].setY(value.toDouble());
// break;
// case 2:
case 6:
Marek Rosa
Table model data example
 r519 m_labels.replace(index.row(), value.toString());
break;
default:
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 m_data[index.row()]->replace(index.column(), value.toDouble());
break;
// return false;
Marek Rosa
Table model data example
 r519 }
emit dataChanged(index, index);
return true;
}
return false;
}
Qt::ItemFlags CustomTableModel::flags ( const QModelIndex & index ) const
{
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // if (!index.isValid())
// return Qt::ItemIsEnabled;
return QAbstractItemModel::flags(index) | Qt::ItemIsEditable;
Marek Rosa
Table model data example
 r519 }
bool CustomTableModel::insertRows ( int row, int count, const QModelIndex & parent)
{
Tero Ahola
A few more warnings removed from examples
 r613 Q_UNUSED(parent)
Marek Rosa
Model data example updated
 r546 if (row < 0)
row = 0;
Marek Rosa
Table model data example
 r519 beginInsertRows(QModelIndex(), row /*dataTable.count()*/, row + count - 1);
Marek Rosa
Added support for adding and removing data with model. Updated the example
 r545 for (int i = row; i < row + count; i++)
Marek Rosa
Table model data example
 r519 {
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // m_points.insert(row, QPointF(10,20));
QVector<qreal>* dataVec = new QVector<qreal>(6);
for (int k = 0; k < dataVec->size(); k++)
if (k%2 == 0)
// dataVec->replace(k, i * 50 + qrand()%20);
{
int difference = 0;
if (row < m_data.size())
{
if (row - 1 >= 0)
{
difference = (int)(qAbs(m_data[row]->at(k) - m_data[row - 1]->at(k)));
dataVec->replace(k, m_data[row - 1]->at(k) + qrand()%qMax(1, difference));
}
else
dataVec->replace(k, qrand()%20);
}
else
dataVec->replace(k, m_data[row - 1]->at(k) + qrand()%20);
}
else
dataVec->replace(k, qrand()%100);
m_data.insert(row, dataVec);
m_labels.insert(row,(QString("Row: %1").arg(row + 1)));
Marek Rosa
Table model data example
 r519 }
endInsertRows();
return true;
}
Marek Rosa
Added support for adding and removing data with model. Updated the example
 r545
bool CustomTableModel::removeRows ( int row, int count, const QModelIndex & parent)
{
if (row > this->rowCount() - 1)
return false;
if (row < 0)
row = 0;
if (row + count > rowCount())
return false;
beginRemoveRows(parent, row, row + count - 1);
for (int i = row; i < row + count; i++)
{
Marek Rosa
Added support for data from model to QBarSeries. Various fixes and small modifications to data from model support to other series
 r630 // m_points.removeAt(row);
QVector<qreal>* item = m_data.at(row);
m_data.removeAt(row);
delete item;
Marek Rosa
Added support for adding and removing data with model. Updated the example
 r545 m_labels.removeAt(row);
}
endRemoveRows();
return true;
}