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/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd
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** All rights reserved.
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** For any questions to The Qt Company, please use contact form at http://qt.io
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**
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** This file is part of the Qt Charts module.
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**
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** Licensees holding valid commercial license for Qt may use this file in
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** accordance with the Qt License Agreement provided with the Software
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** or, alternatively, in accordance with the terms contained in a written
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** agreement between you and The Qt Company.
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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.io
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**
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****************************************************************************/
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#include <QtCharts/QVBarModelMapper>
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QT_CHARTS_BEGIN_NAMESPACE
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/*!
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\class QVBarModelMapper
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\inmodule Qt Charts
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\brief Vertical model mapper for bar series.
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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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Vertical model mapper is used to create a connection between QAbstractBarSeries and QAbstractItemModel derived model object.
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Model mapper maintains equal size of all the BarSets.
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Adding/removing value from the BarSet causes the the same change in the rest of the BarSets added to the same series.
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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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\qmltype VBarModelMapper
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\instantiates QVBarModelMapper
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\inqmlmodule QtCharts
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\inherits BarModelMapper
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\brief Vertical model mapper for bar series.
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VBarModelMapper allows you to use your own QAbstractItemModel derived model with data in columns
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as a data source for any bar series. It is possible to use both QAbstractItemModel and bar
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series data API to manipulate data. VBarModelMapper keeps the series and the model in sync.
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The following QML example would create a bar series with three bar sets (assuming the model has
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at least four columns). Each bar set would contain data starting from row 1. The name of a set
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would be defined by the horizontal header (of the column).
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\code
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BarSeries {
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VBarModelMapper {
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model: myCustomModel // QAbstractItemModel derived implementation
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firstBarSetColumn: 1
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lastBarSetColumn: 3
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firstRow: 1
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}
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}
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\endcode
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*/
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/*!
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\property QVBarModelMapper::series
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\brief Defines the QBarSeries 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 AbstractBarSeries VBarModelMapper::series
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Defines the AbstractBarSeries based object that is used by the mapper. All the data in the series is discarded when it is
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set to the mapper. 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 QVBarModelMapper::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 VBarModelMapper::model
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The QAbstractItemModel based model that is used by the mapper. You need to implement the model
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and expose it to QML. Note: the model has to support adding/removing rows/columns and modifying
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the data of the cells.
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*/
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/*!
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\property QVBarModelMapper::firstBarSetColumn
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\brief Defines which column of the model is used as the data source for the first bar set.
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Default value is: -1 (invalid mapping)
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*/
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/*!
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\qmlproperty int VBarModelMapper::firstBarSetColumn
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Defines which column of the model is used as the data source for the first bar set. Default value
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is: -1 (invalid mapping).
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*/
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/*!
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\property QVBarModelMapper::lastBarSetColumn
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\brief Defines which column of the model is used as the data source for the last bar set.
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Default value is: -1 (invalid mapping)
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*/
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/*!
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\qmlproperty int VBarModelMapper::lastBarSetColumn
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Defines which column of the model is used as the data source for the last bar set. Default
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value is: -1 (invalid mapping).
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*/
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/*!
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\property QVBarModelMapper::firstRow
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\brief Defines which row of the model contains the first values of the QBarSets in the series.
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Minimal and default value is: 0
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*/
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/*!
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\qmlproperty int VBarModelMapper::firstRow
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Defines which row of the model contains the first values of the QBarSets in the series.
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The default value is 0.
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*/
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/*!
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\property QVBarModelMapper::rowCount
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\brief Defines the number of rows of the model that are mapped as the data for QAbstractBarSeries.
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Minimal and default value is: -1 (count limited by the number of rows in the model)
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*/
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/*!
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\qmlproperty int VBarModelMapper::rowCount
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Defines the number of rows of the model that are mapped as the data for QAbstractBarSeries. The default value is
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-1 (count limited by the number of rows in the model)
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*/
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/*!
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\fn void QVBarModelMapper::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 QVBarModelMapper::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 QVBarModelMapper::firstBarSetColumnChanged()
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Emitted when the firstBarSetColumn has changed.
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*/
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/*!
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\fn void QVBarModelMapper::lastBarSetColumnChanged()
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Emitted when the lastBarSetColumn has changed.
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*/
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/*!
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\fn void QVBarModelMapper::firstRowChanged()
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Emitted when the firstRow has changed.
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*/
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/*!
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\fn void QVBarModelMapper::rowCountChanged()
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Emitted when the rowCount 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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QVBarModelMapper::QVBarModelMapper(QObject *parent) :
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QBarModelMapper(parent)
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{
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QBarModelMapper::setOrientation(Qt::Vertical);
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}
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QAbstractItemModel *QVBarModelMapper::model() const
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{
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return QBarModelMapper::model();
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}
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void QVBarModelMapper::setModel(QAbstractItemModel *model)
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{
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if (model != QBarModelMapper::model()) {
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QBarModelMapper::setModel(model);
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emit modelReplaced();
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}
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}
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QAbstractBarSeries *QVBarModelMapper::series() const
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{
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return QBarModelMapper::series();
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}
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void QVBarModelMapper::setSeries(QAbstractBarSeries *series)
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{
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if (series != QBarModelMapper::series()) {
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QBarModelMapper::setSeries(series);
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emit seriesReplaced();
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}
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}
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int QVBarModelMapper::firstBarSetColumn() const
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{
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return QBarModelMapper::firstBarSetSection();
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}
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void QVBarModelMapper::setFirstBarSetColumn(int firstBarSetColumn)
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{
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if (firstBarSetColumn != firstBarSetSection()) {
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QBarModelMapper::setFirstBarSetSection(firstBarSetColumn);
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emit firstBarSetColumnChanged();
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}
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}
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int QVBarModelMapper::lastBarSetColumn() const
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{
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return QBarModelMapper::lastBarSetSection();
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}
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void QVBarModelMapper::setLastBarSetColumn(int lastBarSetColumn)
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{
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if (lastBarSetColumn != lastBarSetSection()) {
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QBarModelMapper::setLastBarSetSection(lastBarSetColumn);
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emit lastBarSetColumnChanged();
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}
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}
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int QVBarModelMapper::firstRow() const
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{
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return QBarModelMapper::first();
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}
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void QVBarModelMapper::setFirstRow(int firstRow)
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{
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if (firstRow != first()) {
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QBarModelMapper::setFirst(firstRow);
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emit firstRowChanged();
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}
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}
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int QVBarModelMapper::rowCount() const
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{
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return QBarModelMapper::count();
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}
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void QVBarModelMapper::setRowCount(int rowCount)
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{
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if (rowCount != count()) {
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QBarModelMapper::setCount(rowCount);
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emit rowCountChanged();
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}
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}
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#include "moc_qvbarmodelmapper.cpp"
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QT_CHARTS_END_NAMESPACE
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