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Fix zooming...
Fix zooming If chart is zoomed only horizontally or vertically then the range for the other direction should not change. This is now checked by comparing the minimum and maximum values to the axis span. Change-Id: Icb5e14fc41afcedd7f75e60ca3ad6f699b053ae7 Task-number: QTRD-3399 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>

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r2714:929d943d1aab
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qhxymodelmapper.cpp
243 lines | 6.6 KiB | text/x-c | CppLexer
/****************************************************************************
**
** 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 <QtCharts/QHXYModelMapper>
QT_CHARTS_BEGIN_NAMESPACE
/*!
\class QHXYModelMapper
\inmodule Qt Charts
\brief Horizontal model mapper for QXYSeries.
\mainclass
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 QXYSeries and QAbstractItemModel derived model object.
It is possible to use both QAbstractItemModel and QXYSeries model API. QXYModelMapper makes sure that QXYSeries and the model are kept in sync.
Note: used model has to support adding/removing rows/columns and modifying the data of the cells.
*/
/*!
\qmltype HXYModelMapper
\instantiates QHXYModelMapper
\inqmlmodule QtCharts
\brief Horizontal model mapper for QXYSeries
HXYModelMapper allows you to use your own QAbstractItemModel derived model with data in rows as
a data source for XYSeries based series. It is possible to use both QAbstractItemModel and
XYSeries data API to manipulate data. HXYModelMapper keeps the series and the model in sync.
*/
/*!
\property QHXYModelMapper::series
\brief Defines the QXYSeries 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 XYSeries HXYModelMapper::series
Defines the XYSeries 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 QHXYModelMapper::model
\brief Defines the model that is used by the mapper.
*/
/*!
\qmlproperty SomeModel HXYModelMapper::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 QHXYModelMapper::xRow
\brief Defines which row of the model is kept in sync with the x values of the QXYSeries.
Default value is: -1 (invalid mapping)
*/
/*!
\qmlproperty int HXYModelMapper::xRow
Defines which row of the model is kept in sync with the x values of the series. Default value is -1 (invalid
mapping).
*/
/*!
\property QHXYModelMapper::yRow
\brief Defines which row of the model is kept in sync with the y values of the QXYSeries.
Default value is: -1 (invalid mapping)
*/
/*!
\qmlproperty int HXYModelMapper::yRow
Defines which row of the model is kept in sync with the y values of the series. Default value is -1
(invalid mapping).
*/
/*!
\property QHXYModelMapper::firstColumn
\brief Defines which column of the model contains the data for the first point of the series.
Minimal and default value is: 0
*/
/*!
\qmlproperty int HXYModelMapper::firstColumn
Defines which column of the model contains the data for the first point of the series.
The default value is 0.
*/
/*!
\property QHXYModelMapper::columnCount
\brief Defines the number of columns of the model that are mapped as the data for series.
Minimal and default value is: -1 (count limited by the number of columns in the model)
*/
/*!
\qmlproperty int HXYModelMapper::columnCount
Defines the number of columns of the model that are mapped as the data for series. The default value is
-1 (count limited by the number of columns in the model)
*/
/*!
\fn void QHXYModelMapper::seriesReplaced()
Emitted when the series to which mapper is connected to has changed.
*/
/*!
\fn void QHXYModelMapper::modelReplaced()
Emitted when the model to which mapper is connected to has changed.
*/
/*!
\fn void QHXYModelMapper::xRowChanged()
Emitted when the xRow has changed.
*/
/*!
\fn void QHXYModelMapper::yRowChanged()
Emitted when the yRow has changed.
*/
/*!
\fn void QHXYModelMapper::firstColumnChanged()
Emitted when the firstColumn has changed.
*/
/*!
\fn void QHXYModelMapper::columnCountChanged()
Emitted when the columnCount has changed.
*/
/*!
Constructs a mapper object which is a child of \a parent.
*/
QHXYModelMapper::QHXYModelMapper(QObject *parent) :
QXYModelMapper(parent)
{
QXYModelMapper::setOrientation(Qt::Horizontal);
}
QAbstractItemModel *QHXYModelMapper::model() const
{
return QXYModelMapper::model();
}
void QHXYModelMapper::setModel(QAbstractItemModel *model)
{
if (model != QXYModelMapper::model()) {
QXYModelMapper::setModel(model);
emit modelReplaced();
}
}
QXYSeries *QHXYModelMapper::series() const
{
return QXYModelMapper::series();
}
void QHXYModelMapper::setSeries(QXYSeries *series)
{
if (series != QXYModelMapper::series()) {
QXYModelMapper::setSeries(series);
emit seriesReplaced();
}
}
int QHXYModelMapper::xRow() const
{
return QXYModelMapper::xSection();
}
void QHXYModelMapper::setXRow(int xRow)
{
if (xRow != xSection()) {
QXYModelMapper::setXSection(xRow);
emit xRowChanged();
}
}
int QHXYModelMapper::yRow() const
{
return QXYModelMapper::ySection();
}
void QHXYModelMapper::setYRow(int yRow)
{
if (yRow != ySection()) {
QXYModelMapper::setYSection(yRow);
emit yRowChanged();
}
}
int QHXYModelMapper::firstColumn() const
{
return first();
}
void QHXYModelMapper::setFirstColumn(int firstColumn)
{
if (firstColumn != first()) {
setFirst(firstColumn);
emit firstColumnChanged();
}
}
int QHXYModelMapper::columnCount() const
{
return count();
}
void QHXYModelMapper::setColumnCount(int columnCount)
{
if (columnCount != count()) {
setCount(columnCount);
emit columnCountChanged();
}
}
#include "moc_qhxymodelmapper.cpp"
QT_CHARTS_END_NAMESPACE