qhbarmodelmapper.cpp
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r0 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2016 The Qt Company Ltd. | ||||
** Contact: https://www.qt.io/licensing/ | ||||
** | ||||
** This file is part of the Qt Charts module of the Qt Toolkit. | ||||
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** GNU General Public License Usage | ||||
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****************************************************************************/ | ||||
#include <QtCharts/QHBarModelMapper> | ||||
QT_CHARTS_BEGIN_NAMESPACE | ||||
/*! | ||||
\class QHBarModelMapper | ||||
\inmodule Qt Charts | ||||
\brief Horizontal model mapper for bar series. | ||||
Model mappers allow you to use QAbstractItemModel derived models as a data source for a chart series. | ||||
Horizontal 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 HBarModelMapper | ||||
\instantiates QHBarModelMapper | ||||
\inqmlmodule QtCharts | ||||
\brief Horizontal model mapper for bar series. | ||||
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 | ||||
*/ | ||||
/*! | ||||
\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) | ||||
*/ | ||||
/*! | ||||
\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 | ||||
set to the mapper. When new series is specified the old series is disconnected (it preserves its data). | ||||
*/ | ||||
/*! | ||||
\property QHBarModelMapper::model | ||||
\brief Defines the model that is used by the mapper. | ||||
*/ | ||||
/*! | ||||
\qmlproperty SomeModel HBarModelMapper::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 QHBarModelMapper::firstBarSetRow | ||||
\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 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). | ||||
*/ | ||||
/*! | ||||
\property QHBarModelMapper::lastBarSetRow | ||||
\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 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). | ||||
*/ | ||||
/*! | ||||
\property QHBarModelMapper::firstColumn | ||||
\brief Defines which column of the model contains the first values of the QBarSets in the series. | ||||
Minimal and default value is: 0 | ||||
*/ | ||||
/*! | ||||
\qmlproperty int HBarModelMapper::firstColumn | ||||
Defines which column of the model contains the first values of the QBarSets in the series. | ||||
The default value is 0. | ||||
*/ | ||||
/*! | ||||
\property QHBarModelMapper::columnCount | ||||
\brief Defines the number of columns of the model that are mapped as the data for QAbstractBarSeries. | ||||
Minimal and default value is: -1 (count limited by the number of columns in the model) | ||||
*/ | ||||
/*! | ||||
\qmlproperty int HBarModelMapper::columnCount | ||||
Defines the number of columns of the model that are mapped as the data for QAbstractBarSeries. The default value is | ||||
-1 (count limited by the number of columns in the model) | ||||
*/ | ||||
/*! | ||||
\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. | ||||
*/ | ||||
/*! | ||||
\fn void QHBarModelMapper::firstBarSetRowChanged() | ||||
Emitted when the firstBarSetRow has changed. | ||||
*/ | ||||
/*! | ||||
\fn void QHBarModelMapper::lastBarSetRowChanged() | ||||
Emitted when the lastBarSetRow has changed. | ||||
*/ | ||||
/*! | ||||
\fn void QHBarModelMapper::firstColumnChanged() | ||||
Emitted when the firstColumn has changed. | ||||
*/ | ||||
/*! | ||||
\fn void QHBarModelMapper::columnCountChanged() | ||||
Emitted when the columnCount has changed. | ||||
*/ | ||||
/*! | ||||
Constructs a mapper object which is a child of \a parent. | ||||
*/ | ||||
QHBarModelMapper::QHBarModelMapper(QObject *parent) : | ||||
QBarModelMapper(parent) | ||||
{ | ||||
QBarModelMapper::setOrientation(Qt::Horizontal); | ||||
} | ||||
QAbstractItemModel *QHBarModelMapper::model() const | ||||
{ | ||||
return QBarModelMapper::model(); | ||||
} | ||||
void QHBarModelMapper::setModel(QAbstractItemModel *model) | ||||
{ | ||||
if (model != QBarModelMapper::model()) { | ||||
QBarModelMapper::setModel(model); | ||||
emit modelReplaced(); | ||||
} | ||||
} | ||||
QAbstractBarSeries *QHBarModelMapper::series() const | ||||
{ | ||||
return QBarModelMapper::series(); | ||||
} | ||||
void QHBarModelMapper::setSeries(QAbstractBarSeries *series) | ||||
{ | ||||
if (series != QBarModelMapper::series()) { | ||||
QBarModelMapper::setSeries(series); | ||||
emit seriesReplaced(); | ||||
} | ||||
} | ||||
int QHBarModelMapper::firstBarSetRow() const | ||||
{ | ||||
return QBarModelMapper::firstBarSetSection(); | ||||
} | ||||
void QHBarModelMapper::setFirstBarSetRow(int firstBarSetRow) | ||||
{ | ||||
if (firstBarSetRow != firstBarSetSection()) { | ||||
QBarModelMapper::setFirstBarSetSection(firstBarSetRow); | ||||
emit firstBarSetRowChanged(); | ||||
} | ||||
} | ||||
int QHBarModelMapper::lastBarSetRow() const | ||||
{ | ||||
return QBarModelMapper::lastBarSetSection(); | ||||
} | ||||
void QHBarModelMapper::setLastBarSetRow(int lastBarSetRow) | ||||
{ | ||||
if (lastBarSetRow != lastBarSetSection()) { | ||||
QBarModelMapper::setLastBarSetSection(lastBarSetRow); | ||||
emit lastBarSetRowChanged(); | ||||
} | ||||
} | ||||
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); | ||||
emit columnCountChanged(); | ||||
} | ||||
} | ||||
#include "moc_qhbarmodelmapper.cpp" | ||||
QT_CHARTS_END_NAMESPACE | ||||