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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 "qhbarmodelmapper.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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/*!
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\class QHBarModelMapper
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\brief Horizontal 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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Horizontal 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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\qmlclass HBarModelMapper QHBarModelMapper
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HBarModelMapper allows you to use your own QAbstractItemModel derived model with data in rows as a data source
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for any bar series. It is possible to use both QAbstractItemModel and bar series data API to manipulate data.
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HBarModelMapper 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 rows). Each bar set would contain data starting from column 1. The name of a set would be defined by
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the vertical header (of the row).
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\code
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BarSeries {
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HBarModelMapper {
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model: myCustomModel // QAbstractItemModel derived implementation
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firstBarSetRow: 1
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lastBarSetRow: 3
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firstColumn: 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 QHBarModelMapper::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 BarSeries HBarModelMapper::series
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Defines the BarSeries 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 QHBarModelMapper::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 HBarModelMapper::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 QHBarModelMapper::firstBarSetRow
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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 HBarModelMapper::firstBarSetRow
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Defines which column of the model is used as the data source for the first bar set. The default value is -1
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(invalid mapping).
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*/
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/*!
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\property QHBarModelMapper::lastBarSetRow
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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 HBarModelMapper::lastBarSetRow
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Defines which column of the model is used as the data source for the last bar set. The default value is -1
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(invalid mapping).
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*/
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/*!
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\property QHBarModelMapper::firstColumn
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\brief Defines which column 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 HBarModelMapper::firstColumn
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Defines which column 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 QHBarModelMapper::columnCount
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\brief Defines the number of columns 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 columns in the model)
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*/
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/*!
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\qmlproperty int HBarModelMapper::columnCount
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Defines the number of columns 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 columns in the model)
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*/
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/*!
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\fn void QHBarModelMapper::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 QHBarModelMapper::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 QHBarModelMapper::firstBarSetRowChanged()
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Emitted when the firstBarSetRow has changed.
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*/
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/*!
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\fn void QHBarModelMapper::lastBarSetRowChanged()
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Emitted when the lastBarSetRow has changed.
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*/
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/*!
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\fn void QHBarModelMapper::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 QHBarModelMapper::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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QHBarModelMapper::QHBarModelMapper(QObject *parent) :
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QBarModelMapper(parent)
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{
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QBarModelMapper::setOrientation(Qt::Horizontal);
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}
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QAbstractItemModel* QHBarModelMapper::model() const
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{
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return QBarModelMapper::model();
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}
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void QHBarModelMapper::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* QHBarModelMapper::series() const
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{
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return QBarModelMapper::series();
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}
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void QHBarModelMapper::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 QHBarModelMapper::firstBarSetRow() const
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{
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return QBarModelMapper::firstBarSetSection();
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}
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void QHBarModelMapper::setFirstBarSetRow(int firstBarSetRow)
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{
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if (firstBarSetRow != firstBarSetSection()) {
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QBarModelMapper::setFirstBarSetSection(firstBarSetRow);
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emit firstBarSetRowChanged();
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}
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}
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int QHBarModelMapper::lastBarSetRow() const
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{
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return QBarModelMapper::lastBarSetSection();
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}
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void QHBarModelMapper::setLastBarSetRow(int lastBarSetRow)
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{
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if (lastBarSetRow != lastBarSetSection()) {
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QBarModelMapper::setLastBarSetSection(lastBarSetRow);
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emit lastBarSetRowChanged();
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}
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}
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int QHBarModelMapper::firstColumn() const
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{
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return QBarModelMapper::first();
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}
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void QHBarModelMapper::setFirstColumn(int firstColumn)
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{
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if (firstColumn != first()) {
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QBarModelMapper::setFirst(firstColumn);
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emit firstColumnChanged();
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}
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}
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int QHBarModelMapper::columnCount() const
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{
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return QBarModelMapper::count();
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}
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void QHBarModelMapper::setColumnCount(int columnCount)
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{
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if (columnCount != count()) {
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QBarModelMapper::setCount(columnCount);
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emit firstColumnChanged();
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}
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}
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#include "moc_qhbarmodelmapper.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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