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Diffstat (limited to 'src/charts/barchart/qvbarmodelmapper.cpp')
| -rw-r--r-- | src/charts/barchart/qvbarmodelmapper.cpp | 258 |
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diff --git a/src/charts/barchart/qvbarmodelmapper.cpp b/src/charts/barchart/qvbarmodelmapper.cpp new file mode 100644 index 00000000..a239e696 --- /dev/null +++ b/src/charts/barchart/qvbarmodelmapper.cpp @@ -0,0 +1,258 @@ +/**************************************************************************** +** +** Copyright (C) 2014 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 Enterprise Charts Add-on. +** +** $QT_BEGIN_LICENSE$ +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise 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 "qvbarmodelmapper.h" + +QT_CHARTS_BEGIN_NAMESPACE + +/*! + \class QVBarModelMapper + \inmodule Qt Charts + \brief Vertical model mapper for bar series. + \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 QAbstractBarSeries and QAbstractItemModel derived model object. + Model mapper maintains equal size of all the BarSets. + Adding/removing value from the BarSet causes the the same change in the rest of the BarSets added to the same series. + \note Used model has to support adding/removing rows/columns and modifying the data of the cells. +*/ +/*! + \qmltype VBarModelMapper + \instantiates QVBarModelMapper + \inqmlmodule QtCharts + + \inherits BarModelMapper + + \brief Vertical model mapper for bar series. + + VBarModelMapper allows you to use your own QAbstractItemModel derived model with data in columns + as a data source for any bar series. It is possible to use both QAbstractItemModel and bar + series data API to manipulate data. VBarModelMapper keeps the series and the model in sync. + + The following QML example would create a bar series with three bar sets (assuming the model has + at least four columns). Each bar set would contain data starting from row 1. The name of a set + would be defined by the horizontal header (of the column). + \code + BarSeries { + VBarModelMapper { + model: myCustomModel // QAbstractItemModel derived implementation + firstBarSetColumn: 1 + lastBarSetColumn: 3 + firstRow: 1 + } + } + \endcode +*/ + +/*! + \property QVBarModelMapper::series + \brief Defines the QBarSeries 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 AbstractBarSeries VBarModelMapper::series + Defines the AbstractBarSeries based 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). +*/ + +/*! + \property QVBarModelMapper::model + \brief Defines the model that is used by the mapper. +*/ +/*! + \qmlproperty SomeModel VBarModelMapper::model + The QAbstractItemModel based model that is used by the mapper. You need to implement the model + and expose it to QML. Note: the model has to support adding/removing rows/columns and modifying + the data of the cells. +*/ + +/*! + \property QVBarModelMapper::firstBarSetColumn + \brief Defines which column of the model is used as the data source for the first bar set. + + Default value is: -1 (invalid mapping) +*/ +/*! + \qmlproperty int VBarModelMapper::firstBarSetColumn + Defines which column of the model is used as the data source for the first bar set. Default value + is: -1 (invalid mapping). +*/ + +/*! + \property QVBarModelMapper::lastBarSetColumn + \brief Defines which column of the model is used as the data source for the last bar set. + + Default value is: -1 (invalid mapping) +*/ +/*! + \qmlproperty int VBarModelMapper::lastBarSetColumn + Defines which column of the model is used as the data source for the last bar set. Default + value is: -1 (invalid mapping). +*/ + +/*! + \property QVBarModelMapper::firstRow + \brief Defines which row of the model contains the first values of the QBarSets in the series. + + Minimal and default value is: 0 +*/ +/*! + \qmlproperty int VBarModelMapper::firstRow + Defines which row of the model contains the first values of the QBarSets in the series. + The default value is 0. +*/ + +/*! + \property QVBarModelMapper::rowCount + \brief Defines the number of rows of the model that are mapped as the data for QAbstractBarSeries. + + Minimal and default value is: -1 (count limited by the number of rows in the model) +*/ +/*! + \qmlproperty int VBarModelMapper::rowCount + Defines the number of rows of the model that are mapped as the data for QAbstractBarSeries. The default value is + -1 (count limited by the number of rows in the model) +*/ + +/*! + \fn void QVBarModelMapper::seriesReplaced() + + Emitted when the series to which mapper is connected to has changed. +*/ + +/*! + \fn void QVBarModelMapper::modelReplaced() + + Emitted when the model to which mapper is connected to has changed. +*/ + +/*! + \fn void QVBarModelMapper::firstBarSetColumnChanged() + Emitted when the firstBarSetColumn has changed. +*/ + +/*! + \fn void QVBarModelMapper::lastBarSetColumnChanged() + Emitted when the lastBarSetColumn has changed. +*/ + +/*! + \fn void QVBarModelMapper::firstRowChanged() + Emitted when the firstRow has changed. +*/ + +/*! + \fn void QVBarModelMapper::rowCountChanged() + Emitted when the rowCount has changed. +*/ + +/*! + Constructs a mapper object which is a child of \a parent. +*/ +QVBarModelMapper::QVBarModelMapper(QObject *parent) : + QBarModelMapper(parent) +{ + QBarModelMapper::setOrientation(Qt::Vertical); +} + +QAbstractItemModel *QVBarModelMapper::model() const +{ + return QBarModelMapper::model(); +} + +void QVBarModelMapper::setModel(QAbstractItemModel *model) +{ + if (model != QBarModelMapper::model()) { + QBarModelMapper::setModel(model); + emit modelReplaced(); + } +} + +QAbstractBarSeries *QVBarModelMapper::series() const +{ + return QBarModelMapper::series(); +} + +void QVBarModelMapper::setSeries(QAbstractBarSeries *series) +{ + if (series != QBarModelMapper::series()) { + QBarModelMapper::setSeries(series); + emit seriesReplaced(); + } +} + +int QVBarModelMapper::firstBarSetColumn() const +{ + return QBarModelMapper::firstBarSetSection(); +} + +void QVBarModelMapper::setFirstBarSetColumn(int firstBarSetColumn) +{ + if (firstBarSetColumn != firstBarSetSection()) { + QBarModelMapper::setFirstBarSetSection(firstBarSetColumn); + emit firstBarSetColumnChanged(); + } +} + +int QVBarModelMapper::lastBarSetColumn() const +{ + return QBarModelMapper::lastBarSetSection(); +} + +void QVBarModelMapper::setLastBarSetColumn(int lastBarSetColumn) +{ + if (lastBarSetColumn != lastBarSetSection()) { + QBarModelMapper::setLastBarSetSection(lastBarSetColumn); + emit lastBarSetColumnChanged(); + } +} + +int QVBarModelMapper::firstRow() const +{ + return QBarModelMapper::first(); +} + +void QVBarModelMapper::setFirstRow(int firstRow) +{ + if (firstRow != first()) { + QBarModelMapper::setFirst(firstRow); + emit firstRowChanged(); + } +} + +int QVBarModelMapper::rowCount() const +{ + return QBarModelMapper::count(); +} + +void QVBarModelMapper::setRowCount(int rowCount) +{ + if (rowCount != count()) { + QBarModelMapper::setCount(rowCount); + emit rowCountChanged(); + } +} + +#include "moc_qvbarmodelmapper.cpp" + +QT_CHARTS_END_NAMESPACE |