|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2012 Digia Plc
|
|
|
** All rights reserved.
|
|
|
** For any questions to Digia, please use contact form at http://qt.digia.com
|
|
|
**
|
|
|
** This file is part of the Qt Commercial Charts Add-on.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE$
|
|
|
** Licensees holding valid Qt Commercial licenses may use this file in
|
|
|
** accordance with the Qt Commercial License Agreement provided with the
|
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
|
** a written agreement between you and Digia.
|
|
|
**
|
|
|
** If you have questions regarding the use of this file, please use
|
|
|
** contact form at http://qt.digia.com
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include "qvpiemodelmapper.h"
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
/*!
|
|
|
\class QVPieModelMapper
|
|
|
\mainclass
|
|
|
|
|
|
Model mappers allow you to use QAbstractItemModel derived models as a data source for a chart series.
|
|
|
Vertical model mapper is used to create a connection between QPieSeries and QAbstractItemModel derived model object that keeps the consecutive pie slices data in columns.
|
|
|
It is possible to use both QAbstractItemModel and QPieSeries model API. QVPieModelMapper makes sure that Pie and the model are kept in sync.
|
|
|
NOTE: used model has to support adding/removing rows/columns and modifying the data of the cells.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlclass VPieModelMapper QVPieModelMapper
|
|
|
|
|
|
VPieModelMapper allows you to use your own QAbstractItemModel derived model with data in columns as a data source
|
|
|
for a pie series. It is possible to use both QAbstractItemModel and PieSeries data API to manipulate data.
|
|
|
VPieModelMapper keeps the Pie and the model in sync.
|
|
|
|
|
|
The following QML example would create a pie series with four slices (assuming the model has at least five rows).
|
|
|
Each slice would contain a label from column 1 and a value from column 2.
|
|
|
\code
|
|
|
VPieModelMapper {
|
|
|
series: pieSeries
|
|
|
model: customModel
|
|
|
labelsColumn: 1
|
|
|
valuesColumn: 2
|
|
|
firstRow: 1
|
|
|
rowCount: 4
|
|
|
}
|
|
|
\endcode
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QVPieModelMapper::series
|
|
|
\brief Defines the QPieSeries object that is used by the mapper.
|
|
|
All the data in the series is discarded when it is set to the mapper.
|
|
|
When new series is specified the old series is disconnected (it preserves its data)
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty PieSeries VPieModelMapper::series
|
|
|
Defines the PieSeries object that is used by the mapper. If you define the mapper element as a child for a
|
|
|
PieSeries, leave this property undefined. All the data in the series is discarded when it is set to the mapper.
|
|
|
When new series is specified the old series is disconnected (it preserves its data).
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QVPieModelMapper::model
|
|
|
\brief Defines the model that is used by the mapper.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty SomeModel VPieModelMapper::model
|
|
|
The QAbstractItemModel based model that is used by the mapper. You need to implement the model and expose it to
|
|
|
QML as shown in \l {QML Custom Model} demo application. NOTE: the model has to support adding/removing rows/columns
|
|
|
and modifying the data of the cells.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QVPieModelMapper::valuesColumn
|
|
|
\brief Defines which column of the model is kept in sync with the values of the pie's slices
|
|
|
Default value is: -1 (invalid mapping)
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty int VPieModelMapper::valuesColumn
|
|
|
Defines which column of the model is kept in sync with the values of the pie's slices. Default value is -1 (invalid
|
|
|
mapping).
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QVPieModelMapper::labelsColumn
|
|
|
\brief Defines which column of the model is kept in sync with the labels of the pie's slices
|
|
|
Default value is: -1 (invalid mapping)
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty int VPieModelMapper::labelsColumn
|
|
|
Defines which column of the model is kept in sync with the labels of the pie's slices. Default value is -1 (invalid
|
|
|
mapping).
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QVPieModelMapper::firstRow
|
|
|
\brief Defines which row of the model contains the first slice value.
|
|
|
Minimal and default value is: 0
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty int VPieModelMapper::firstRow
|
|
|
Defines which row of the model contains the first slice value.
|
|
|
The default value is 0.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QVPieModelMapper::rowCount
|
|
|
\brief Defines the number of rows of the model that are mapped as the data for QPieSeries
|
|
|
Minimal and default value is: -1 (count limited by the number of rows in the model)
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty int VPieModelMapper::columnCount
|
|
|
Defines the number of rows of the model that are mapped as the data for QPieSeries. The default value is
|
|
|
-1 (count limited by the number of rows in the model)
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QVPieModelMapper::seriesReplaced()
|
|
|
|
|
|
Emitted when the series to which mapper is connected to has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QVPieModelMapper::modelReplaced()
|
|
|
|
|
|
Emitted when the model to which mapper is connected to has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QVPieModelMapper::valuesColumnChanged()
|
|
|
|
|
|
Emitted when the valuesColumn has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QVPieModelMapper::labelsColumnChanged()
|
|
|
|
|
|
Emitted when the labelsColumn has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QVPieModelMapper::firstRowChanged()
|
|
|
Emitted when the firstRow has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QVPieModelMapper::rowCountChanged()
|
|
|
Emitted when the rowCount has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
Constructs a mapper object which is a child of \a parent.
|
|
|
*/
|
|
|
QVPieModelMapper::QVPieModelMapper(QObject *parent) :
|
|
|
QPieModelMapper(parent)
|
|
|
{
|
|
|
QPieModelMapper::setOrientation(Qt::Vertical);
|
|
|
}
|
|
|
|
|
|
QAbstractItemModel* QVPieModelMapper::model() const
|
|
|
{
|
|
|
return QPieModelMapper::model();
|
|
|
}
|
|
|
|
|
|
void QVPieModelMapper::setModel(QAbstractItemModel *model)
|
|
|
{
|
|
|
if (model != QPieModelMapper::model()) {
|
|
|
QPieModelMapper::setModel(model);
|
|
|
emit modelReplaced();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QPieSeries* QVPieModelMapper::series() const
|
|
|
{
|
|
|
return QPieModelMapper::series();
|
|
|
}
|
|
|
|
|
|
void QVPieModelMapper::setSeries(QPieSeries *series)
|
|
|
{
|
|
|
if (series != QPieModelMapper::series()) {
|
|
|
QPieModelMapper::setSeries(series);
|
|
|
emit seriesReplaced();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns which column of the model is kept in sync with the values of the pie's slices
|
|
|
*/
|
|
|
int QVPieModelMapper::valuesColumn() const
|
|
|
{
|
|
|
return QPieModelMapper::valuesSection();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the model column that is kept in sync with the pie slices values.
|
|
|
Parameter \a valuesColumn specifies the row of the model.
|
|
|
*/
|
|
|
void QVPieModelMapper::setValuesColumn(int valuesColumn)
|
|
|
{
|
|
|
if (valuesColumn != valuesSection()) {
|
|
|
QPieModelMapper::setValuesSection(valuesColumn);
|
|
|
emit valuesColumnChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns which column of the model is kept in sync with the labels of the pie's slices
|
|
|
*/
|
|
|
int QVPieModelMapper::labelsColumn() const
|
|
|
{
|
|
|
return QPieModelMapper::labelsSection();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the model column that is kept in sync with the pie's slices labels.
|
|
|
Parameter \a labelsColumn specifies the row of the model.
|
|
|
*/
|
|
|
void QVPieModelMapper::setLabelsColumn(int labelsColumn)
|
|
|
{
|
|
|
if (labelsColumn != labelsSection()) {
|
|
|
QPieModelMapper::setLabelsSection(labelsColumn);
|
|
|
emit labelsColumnChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int QVPieModelMapper::firstRow() const
|
|
|
{
|
|
|
return first();
|
|
|
}
|
|
|
|
|
|
void QVPieModelMapper::setFirstRow(int firstRow)
|
|
|
{
|
|
|
if (firstRow != first()) {
|
|
|
setFirst(firstRow);
|
|
|
emit firstRowChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
int QVPieModelMapper::rowCount() const
|
|
|
{
|
|
|
return count();
|
|
|
}
|
|
|
|
|
|
void QVPieModelMapper::setRowCount(int rowCount)
|
|
|
{
|
|
|
if (rowCount != count()) {
|
|
|
setCount(rowCount);
|
|
|
emit rowCountChanged();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#include "moc_qvpiemodelmapper.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
