qvpiemodelmapper.cpp
264 lines
| 7.6 KiB
| text/x-c
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CppLexer
Marek Rosa
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r1309 | /**************************************************************************** | ||
| ** | ||||
Miikka Heikkinen
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r2432 | ** Copyright (C) 2013 Digia Plc | ||
|
Marek Rosa
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r1309 | ** All rights reserved. | ||
| ** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
| ** | ||||
| ** This file is part of the Qt Commercial Charts Add-on. | ||||
| ** | ||||
| ** $QT_BEGIN_LICENSE$ | ||||
| ** Licensees holding valid Qt Commercial licenses may use this file in | ||||
| ** accordance with the Qt Commercial 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 | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
|
Marek Rosa
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r1237 | #include "qvpiemodelmapper.h" | ||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
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Marek Rosa
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r1331 | /*! | ||
| \class QVPieModelMapper | ||||
| \mainclass | ||||
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r1397 | Model mappers allow you to use QAbstractItemModel derived models as a data source for a chart series. | ||
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r1378 | Vertical model mapper is used to create a connection between QPieSeries and QAbstractItemModel derived model object that keeps the consecutive pie slices data in columns. | ||
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r1340 | It is possible to use both QAbstractItemModel and QPieSeries model API. QVPieModelMapper makes sure that Pie and the model are kept in sync. | ||
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Miikka Heikkinen
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r2494 | \note Used model has to support adding/removing rows/columns and modifying the data of the cells. | ||
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Marek Rosa
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r1340 | */ | ||
Tero Ahola
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r1516 | /*! | ||
| \qmlclass VPieModelMapper QVPieModelMapper | ||||
| VPieModelMapper allows you to use your own QAbstractItemModel derived model with data in columns as a data source | ||||
| for a pie series. It is possible to use both QAbstractItemModel and PieSeries data API to manipulate data. | ||||
| VPieModelMapper keeps the Pie and the model in sync. | ||||
| The following QML example would create a pie series with four slices (assuming the model has at least five rows). | ||||
| Each slice would contain a label from column 1 and a value from column 2. | ||||
| \code | ||||
| VPieModelMapper { | ||||
| series: pieSeries | ||||
| model: customModel | ||||
| labelsColumn: 1 | ||||
| valuesColumn: 2 | ||||
| firstRow: 1 | ||||
| rowCount: 4 | ||||
| } | ||||
| \endcode | ||||
| */ | ||||
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Marek Rosa
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r1340 | |||
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Marek Rosa
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r1508 | /*! | ||
| \property QVPieModelMapper::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
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r1516 | /*! | ||
| \qmlproperty PieSeries VPieModelMapper::series | ||||
| Defines the PieSeries object that is used by the mapper. If you define the mapper element as a child for a | ||||
| PieSeries, leave this property undefined. 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). | ||||
| */ | ||||
|
Marek Rosa
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r1508 | |||
| /*! | ||||
| \property QVPieModelMapper::model | ||||
| \brief Defines the model that is used by the mapper. | ||||
| */ | ||||
|
Tero Ahola
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r1516 | /*! | ||
| \qmlproperty SomeModel VPieModelMapper::model | ||||
| The QAbstractItemModel based model that is used by the mapper. You need to implement the model and expose it to | ||||
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Marek Rosa
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r2396 | QML as shown in \l {QML Custom Model} demo application. Note: the model has to support adding/removing rows/columns | ||
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Tero Ahola
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r1516 | and modifying the data of the cells. | ||
| */ | ||||
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Marek Rosa
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r1508 | |||
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Marek Rosa
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r1340 | /*! | ||
| \property QVPieModelMapper::valuesColumn | ||||
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Miikka Heikkinen
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r2520 | \brief Defines which column of the model is kept in sync with the values of the pie's slices. | ||
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Marek Rosa
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r1340 | Default value is: -1 (invalid mapping) | ||
| */ | ||||
|
Tero Ahola
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r1516 | /*! | ||
| \qmlproperty int VPieModelMapper::valuesColumn | ||||
| Defines which column of the model is kept in sync with the values of the pie's slices. Default value is -1 (invalid | ||||
| mapping). | ||||
| */ | ||||
|
Marek Rosa
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r1340 | |||
| /*! | ||||
| \property QVPieModelMapper::labelsColumn | ||||
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r2520 | \brief Defines which column of the model is kept in sync with the labels of the pie's slices. | ||
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r1340 | Default value is: -1 (invalid mapping) | ||
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Marek Rosa
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r1331 | */ | ||
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Tero Ahola
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r1516 | /*! | ||
| \qmlproperty int VPieModelMapper::labelsColumn | ||||
| Defines which column of the model is kept in sync with the labels of the pie's slices. Default value is -1 (invalid | ||||
| mapping). | ||||
| */ | ||||
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Marek Rosa
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r1331 | |||
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r1499 | /*! | ||
| \property QVPieModelMapper::firstRow | ||||
| \brief Defines which row of the model contains the first slice value. | ||||
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r2520 | |||
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r1499 | Minimal and default value is: 0 | ||
| */ | ||||
| /*! | ||||
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Tero Ahola
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r1516 | \qmlproperty int VPieModelMapper::firstRow | ||
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Marek Rosa
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r1499 | Defines which row of the model contains the first slice value. | ||
| The default value is 0. | ||||
| */ | ||||
| /*! | ||||
| \property QVPieModelMapper::rowCount | ||||
|
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r2520 | \brief Defines the number of rows of the model that are mapped as the data for QPieSeries. | ||
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r1499 | Minimal and default value is: -1 (count limited by the number of rows in the model) | ||
| */ | ||||
| /*! | ||||
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Tero Ahola
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r1516 | \qmlproperty int VPieModelMapper::columnCount | ||
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r1499 | Defines the number of rows of the model that are mapped as the data for QPieSeries. The default value is | ||
| -1 (count limited by the number of rows in the model) | ||||
| */ | ||||
|
Marek Rosa
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r1508 | /*! | ||
| \fn void QVPieModelMapper::seriesReplaced() | ||||
| Emitted when the series to which mapper is connected to has changed. | ||||
| */ | ||||
| /*! | ||||
| \fn void QVPieModelMapper::modelReplaced() | ||||
| Emitted when the model to which mapper is connected to has changed. | ||||
| */ | ||||
|
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r1476 | /*! | ||
| \fn void QVPieModelMapper::valuesColumnChanged() | ||||
| Emitted when the valuesColumn has changed. | ||||
| */ | ||||
| /*! | ||||
| \fn void QVPieModelMapper::labelsColumnChanged() | ||||
| Emitted when the labelsColumn has changed. | ||||
| */ | ||||
|
Marek Rosa
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r1499 | /*! | ||
| \fn void QVPieModelMapper::firstRowChanged() | ||||
| Emitted when the firstRow has changed. | ||||
| */ | ||||
| /*! | ||||
| \fn void QVPieModelMapper::rowCountChanged() | ||||
| Emitted when the rowCount has changed. | ||||
| */ | ||||
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Marek Rosa
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r1347 | /*! | ||
| Constructs a mapper object which is a child of \a parent. | ||||
| */ | ||||
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Marek Rosa
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r1237 | QVPieModelMapper::QVPieModelMapper(QObject *parent) : | ||
| QPieModelMapper(parent) | ||||
| { | ||||
| QPieModelMapper::setOrientation(Qt::Vertical); | ||||
| } | ||||
Jani Honkonen
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r2104 | QAbstractItemModel *QVPieModelMapper::model() const | ||
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Marek Rosa
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r1508 | { | ||
| return QPieModelMapper::model(); | ||||
| } | ||||
| void QVPieModelMapper::setModel(QAbstractItemModel *model) | ||||
| { | ||||
| if (model != QPieModelMapper::model()) { | ||||
| QPieModelMapper::setModel(model); | ||||
| emit modelReplaced(); | ||||
| } | ||||
| } | ||||
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Jani Honkonen
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r2104 | QPieSeries *QVPieModelMapper::series() const | ||
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Marek Rosa
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r1508 | { | ||
| return QPieModelMapper::series(); | ||||
| } | ||||
| void QVPieModelMapper::setSeries(QPieSeries *series) | ||||
| { | ||||
| if (series != QPieModelMapper::series()) { | ||||
| QPieModelMapper::setSeries(series); | ||||
| emit seriesReplaced(); | ||||
| } | ||||
| } | ||||
|
Marek Rosa
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r1340 | /*! | ||
| Returns which column of the model is kept in sync with the values of the pie's slices | ||||
| */ | ||||
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Marek Rosa
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r1237 | int QVPieModelMapper::valuesColumn() const | ||
| { | ||||
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Marek Rosa
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r1320 | return QPieModelMapper::valuesSection(); | ||
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Marek Rosa
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r1237 | } | ||
|
Marek Rosa
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r1340 | /*! | ||
| Sets the model column that is kept in sync with the pie slices values. | ||||
| Parameter \a valuesColumn specifies the row of the model. | ||||
| */ | ||||
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Marek Rosa
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r1237 | void QVPieModelMapper::setValuesColumn(int valuesColumn) | ||
| { | ||||
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Marek Rosa
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r1474 | if (valuesColumn != valuesSection()) { | ||
| QPieModelMapper::setValuesSection(valuesColumn); | ||||
| emit valuesColumnChanged(); | ||||
| } | ||||
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Marek Rosa
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r1237 | } | ||
|
Marek Rosa
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r1340 | /*! | ||
| Returns which column of the model is kept in sync with the labels of the pie's slices | ||||
| */ | ||||
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Marek Rosa
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r1237 | int QVPieModelMapper::labelsColumn() const | ||
| { | ||||
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Marek Rosa
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r1320 | return QPieModelMapper::labelsSection(); | ||
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Marek Rosa
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r1237 | } | ||
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Marek Rosa
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r1340 | /*! | ||
| Sets the model column that is kept in sync with the pie's slices labels. | ||||
| Parameter \a labelsColumn specifies the row of the model. | ||||
| */ | ||||
|
Marek Rosa
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r1237 | void QVPieModelMapper::setLabelsColumn(int labelsColumn) | ||
| { | ||||
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r1474 | if (labelsColumn != labelsSection()) { | ||
| QPieModelMapper::setLabelsSection(labelsColumn); | ||||
| emit labelsColumnChanged(); | ||||
| } | ||||
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Marek Rosa
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r1237 | } | ||
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Marek Rosa
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r1499 | int QVPieModelMapper::firstRow() const | ||
| { | ||||
| return first(); | ||||
| } | ||||
| void QVPieModelMapper::setFirstRow(int firstRow) | ||||
| { | ||||
| if (firstRow != first()) { | ||||
| setFirst(firstRow); | ||||
| emit firstRowChanged(); | ||||
| } | ||||
| } | ||||
| int QVPieModelMapper::rowCount() const | ||||
| { | ||||
| return count(); | ||||
| } | ||||
| void QVPieModelMapper::setRowCount(int rowCount) | ||||
| { | ||||
| if (rowCount != count()) { | ||||
| setCount(rowCount); | ||||
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r1923 | emit rowCountChanged(); | ||
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r1499 | } | ||
| } | ||||
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Marek Rosa
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r1237 | #include "moc_qvpiemodelmapper.cpp" | ||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||