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