qhbarmodelmapper.cpp
255 lines
| 7.5 KiB
| text/x-c
|
CppLexer
Marek Rosa
|
r1355 | /**************************************************************************** | ||
| ** | ||||
Titta Heikkala
|
r2776 | ** Copyright (C) 2015 The Qt Company Ltd | ||
|
Marek Rosa
|
r1355 | ** All rights reserved. | ||
|
Titta Heikkala
|
r2776 | ** For any questions to The Qt Company, please use contact form at http://qt.io | ||
|
Marek Rosa
|
r1355 | ** | ||
|
Titta Heikkala
|
r2740 | ** This file is part of the Qt Charts module. | ||
|
Marek Rosa
|
r1355 | ** | ||
|
Titta Heikkala
|
r2740 | ** Licensees holding valid commercial license for Qt may use this file in | ||
| ** accordance with the Qt License Agreement provided with the Software | ||||
| ** or, alternatively, in accordance with the terms contained in a written | ||||
|
Titta Heikkala
|
r2776 | ** agreement between you and The Qt Company. | ||
|
Marek Rosa
|
r1355 | ** | ||
| ** If you have questions regarding the use of this file, please use | ||||
|
Titta Heikkala
|
r2740 | ** contact form at http://qt.io | ||
|
Marek Rosa
|
r1355 | ** | ||
| ****************************************************************************/ | ||||
|
Titta Heikkala
|
r2714 | #include <QtCharts/QHBarModelMapper> | ||
|
Marek Rosa
|
r1294 | |||
Titta Heikkala
|
r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
|
Marek Rosa
|
r1294 | |||
|
Marek Rosa
|
r1331 | /*! | ||
| \class QHBarModelMapper | ||||
|
Titta Heikkala
|
r2639 | \inmodule Qt Charts | ||
Miikka Heikkinen
|
r2520 | \brief Horizontal model mapper for bar series. | ||
|
Marek Rosa
|
r1331 | |||
|
Marek Rosa
|
r1397 | Model mappers allow you to use QAbstractItemModel derived models as a data source for a chart series. | ||
sauimone
|
r1586 | Horizontal model mapper is used to create a connection between QAbstractBarSeries and QAbstractItemModel derived model object. | ||
|
Marek Rosa
|
r1485 | 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. | ||||
|
Miikka Heikkinen
|
r2494 | \note Used model has to support adding/removing rows/columns and modifying the data of the cells. | ||
|
Marek Rosa
|
r1331 | */ | ||
|
Titta Heikkala
|
r2639 | /*! | ||
| \qmltype HBarModelMapper | ||||
| \instantiates QHBarModelMapper | ||||
|
Titta Heikkala
|
r2712 | \inqmlmodule QtCharts | ||
|
Titta Heikkala
|
r2639 | |||
|
Titta Heikkala
|
r2712 | \brief Horizontal model mapper for bar series. | ||
Tero Ahola
|
r1492 | |||
|
Titta Heikkala
|
r2712 | HBarModelMapper allows you to use your own QAbstractItemModel derived model with data in rows as | ||
| a data source for any bar series. It is possible to use both QAbstractItemModel and bar series | ||||
| data API to manipulate data. HBarModelMapper 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 rows). Each bar set would contain data starting from column 1. The name of a set | ||||
| would be defined by the vertical header (of the row). | ||||
| \code | ||||
| BarSeries { | ||||
| HBarModelMapper { | ||||
| model: myCustomModel // QAbstractItemModel derived implementation | ||||
| firstBarSetRow: 1 | ||||
| lastBarSetRow: 3 | ||||
| firstColumn: 1 | ||||
| } | ||||
| } | ||||
| \endcode | ||||
|
Tero Ahola
|
r1492 | */ | ||
|
Marek Rosa
|
r1331 | |||
|
Marek Rosa
|
r1509 | /*! | ||
| \property QHBarModelMapper::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) | ||||
| */ | ||||
|
Tero Ahola
|
r1497 | /*! | ||
|
sauimone
|
r1590 | \qmlproperty AbstractBarSeries HBarModelMapper::series | ||
| Defines the AbstractBarSeries based object that is used by the mapper. All the data in the series is discarded when it is | ||||
|
Tero Ahola
|
r1497 | set to the mapper. When new series is specified the old series is disconnected (it preserves its data). | ||
| */ | ||||
|
Marek Rosa
|
r1509 | /*! | ||
| \property QHBarModelMapper::model | ||||
| \brief Defines the model that is used by the mapper. | ||||
| */ | ||||
|
Tero Ahola
|
r1497 | /*! | ||
|
Tero Ahola
|
r1516 | \qmlproperty SomeModel HBarModelMapper::model | ||
|
Titta Heikkala
|
r2618 | 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. | ||||
|
Tero Ahola
|
r1497 | */ | ||
|
Marek Rosa
|
r1348 | /*! | ||
| \property QHBarModelMapper::firstBarSetRow | ||||
|
Miikka Heikkinen
|
r2520 | \brief Defines which column of the model is used as the data source for the first bar set. | ||
|
Marek Rosa
|
r1348 | Default value is: -1 (invalid mapping) | ||
| */ | ||||
|
Tero Ahola
|
r1497 | /*! | ||
| \qmlproperty int HBarModelMapper::firstBarSetRow | ||||
| Defines which column of the model is used as the data source for the first bar set. The default value is -1 | ||||
| (invalid mapping). | ||||
| */ | ||||
|
Marek Rosa
|
r1348 | |||
| /*! | ||||
| \property QHBarModelMapper::lastBarSetRow | ||||
|
Miikka Heikkinen
|
r2520 | \brief Defines which column of the model is used as the data source for the last bar set. | ||
|
Marek Rosa
|
r1348 | Default value is: -1 (invalid mapping) | ||
| */ | ||||
|
Tero Ahola
|
r1497 | /*! | ||
| \qmlproperty int HBarModelMapper::lastBarSetRow | ||||
| Defines which column of the model is used as the data source for the last bar set. The default value is -1 | ||||
| (invalid mapping). | ||||
| */ | ||||
|
Marek Rosa
|
r1348 | |||
|
Marek Rosa
|
r1495 | /*! | ||
| \property QHBarModelMapper::firstColumn | ||||
| \brief Defines which column of the model contains the first values of the QBarSets in the series. | ||||
|
Miikka Heikkinen
|
r2520 | |||
|
Marek Rosa
|
r1495 | Minimal and default value is: 0 | ||
| */ | ||||
| /*! | ||||
|
Tero Ahola
|
r1497 | \qmlproperty int HBarModelMapper::firstColumn | ||
|
Marek Rosa
|
r1495 | Defines which column of the model contains the first values of the QBarSets in the series. | ||
| The default value is 0. | ||||
| */ | ||||
| /*! | ||||
| \property QHBarModelMapper::columnCount | ||||
|
Miikka Heikkinen
|
r2520 | \brief Defines the number of columns of the model that are mapped as the data for QAbstractBarSeries. | ||
|
Tero Ahola
|
r1497 | Minimal and default value is: -1 (count limited by the number of columns in the model) | ||
|
Marek Rosa
|
r1495 | */ | ||
| /*! | ||||
|
Tero Ahola
|
r1497 | \qmlproperty int HBarModelMapper::columnCount | ||
|
sauimone
|
r1586 | Defines the number of columns of the model that are mapped as the data for QAbstractBarSeries. The default value is | ||
|
Tero Ahola
|
r1497 | -1 (count limited by the number of columns in the model) | ||
|
Marek Rosa
|
r1495 | */ | ||
|
Marek Rosa
|
r1509 | /*! | ||
| \fn void QHBarModelMapper::seriesReplaced() | ||||
| Emitted when the series to which mapper is connected to has changed. | ||||
| */ | ||||
| /*! | ||||
| \fn void QHBarModelMapper::modelReplaced() | ||||
| Emitted when the model to which mapper is connected to has changed. | ||||
| */ | ||||
|
Marek Rosa
|
r1478 | /*! | ||
| \fn void QHBarModelMapper::firstBarSetRowChanged() | ||||
| Emitted when the firstBarSetRow has changed. | ||||
| */ | ||||
| /*! | ||||
| \fn void QHBarModelMapper::lastBarSetRowChanged() | ||||
| Emitted when the lastBarSetRow has changed. | ||||
| */ | ||||
|
Marek Rosa
|
r1495 | /*! | ||
| \fn void QHBarModelMapper::firstColumnChanged() | ||||
| Emitted when the firstColumn has changed. | ||||
| */ | ||||
| /*! | ||||
| \fn void QHBarModelMapper::columnCountChanged() | ||||
| Emitted when the columnCount has changed. | ||||
| */ | ||||
|
Marek Rosa
|
r1347 | /*! | ||
| Constructs a mapper object which is a child of \a parent. | ||||
| */ | ||||
|
Marek Rosa
|
r1294 | QHBarModelMapper::QHBarModelMapper(QObject *parent) : | ||
| QBarModelMapper(parent) | ||||
| { | ||||
|
Marek Rosa
|
r1311 | QBarModelMapper::setOrientation(Qt::Horizontal); | ||
|
Marek Rosa
|
r1294 | } | ||
Jani Honkonen
|
r2104 | QAbstractItemModel *QHBarModelMapper::model() const | ||
|
Marek Rosa
|
r1509 | { | ||
| return QBarModelMapper::model(); | ||||
| } | ||||
| void QHBarModelMapper::setModel(QAbstractItemModel *model) | ||||
| { | ||||
| if (model != QBarModelMapper::model()) { | ||||
| QBarModelMapper::setModel(model); | ||||
| emit modelReplaced(); | ||||
| } | ||||
| } | ||||
|
Jani Honkonen
|
r2104 | QAbstractBarSeries *QHBarModelMapper::series() const | ||
|
Marek Rosa
|
r1509 | { | ||
| return QBarModelMapper::series(); | ||||
| } | ||||
|
sauimone
|
r1584 | void QHBarModelMapper::setSeries(QAbstractBarSeries *series) | ||
|
Marek Rosa
|
r1509 | { | ||
| if (series != QBarModelMapper::series()) { | ||||
| QBarModelMapper::setSeries(series); | ||||
| emit seriesReplaced(); | ||||
| } | ||||
| } | ||||
|
Marek Rosa
|
r1312 | int QHBarModelMapper::firstBarSetRow() const | ||
|
Marek Rosa
|
r1294 | { | ||
|
Marek Rosa
|
r1312 | return QBarModelMapper::firstBarSetSection(); | ||
|
Marek Rosa
|
r1294 | } | ||
|
Marek Rosa
|
r1312 | void QHBarModelMapper::setFirstBarSetRow(int firstBarSetRow) | ||
|
Marek Rosa
|
r1294 | { | ||
|
Marek Rosa
|
r1478 | if (firstBarSetRow != firstBarSetSection()) { | ||
|
Marek Rosa
|
r1495 | QBarModelMapper::setFirstBarSetSection(firstBarSetRow); | ||
|
Marek Rosa
|
r1478 | emit firstBarSetRowChanged(); | ||
| } | ||||
|
Marek Rosa
|
r1294 | } | ||
|
Marek Rosa
|
r1312 | int QHBarModelMapper::lastBarSetRow() const | ||
|
Marek Rosa
|
r1294 | { | ||
|
Marek Rosa
|
r1312 | return QBarModelMapper::lastBarSetSection(); | ||
|
Marek Rosa
|
r1294 | } | ||
|
Marek Rosa
|
r1312 | void QHBarModelMapper::setLastBarSetRow(int lastBarSetRow) | ||
|
Marek Rosa
|
r1294 | { | ||
|
Marek Rosa
|
r1478 | if (lastBarSetRow != lastBarSetSection()) { | ||
|
Marek Rosa
|
r1495 | QBarModelMapper::setLastBarSetSection(lastBarSetRow); | ||
|
Marek Rosa
|
r1478 | emit lastBarSetRowChanged(); | ||
| } | ||||
|
Marek Rosa
|
r1294 | } | ||
|
Marek Rosa
|
r1495 | int QHBarModelMapper::firstColumn() const | ||
| { | ||||
| return QBarModelMapper::first(); | ||||
| } | ||||
| void QHBarModelMapper::setFirstColumn(int firstColumn) | ||||
| { | ||||
| if (firstColumn != first()) { | ||||
| QBarModelMapper::setFirst(firstColumn); | ||||
| emit firstColumnChanged(); | ||||
| } | ||||
| } | ||||
| int QHBarModelMapper::columnCount() const | ||||
| { | ||||
| return QBarModelMapper::count(); | ||||
| } | ||||
| void QHBarModelMapper::setColumnCount(int columnCount) | ||||
| { | ||||
| if (columnCount != count()) { | ||||
| QBarModelMapper::setCount(columnCount); | ||||
|
Marek Rosa
|
r1923 | emit columnCountChanged(); | ||
|
Marek Rosa
|
r1495 | } | ||
| } | ||||
|
Marek Rosa
|
r1294 | #include "moc_qhbarmodelmapper.cpp" | ||
|
Titta Heikkala
|
r2712 | QT_CHARTS_END_NAMESPACE | ||