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declarativeboxplotseries.cpp
476 lines | 15.9 KiB | text/x-c | CppLexer
/ src / chartsqml2 / declarativeboxplotseries.cpp
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Miikka Heikkinen
Updated license...
 r2854 /****************************************************************************
Mika Salmela
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 r2548 **
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 r2854 ** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
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 r2548 **
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 r2854 ** This file is part of the Qt Charts module of the Qt Toolkit.
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 r2548 **
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 r2854 ** $QT_BEGIN_LICENSE:GPL$
Titta Heikkala
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 r2845 ** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
Miikka Heikkinen
Updated license...
 r2854 ** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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 r2845 ** $QT_END_LICENSE$
**
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 r2854 ****************************************************************************/
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#include "declarativebarseries.h"
#include "declarativeboxplotseries.h"
Titta Heikkala
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 r2714 #include <QtCharts/QBoxSet>
#include <QtCharts/QVBoxPlotModelMapper>
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 r2548
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Qt Charts project file structure change...
 r2712 QT_CHARTS_BEGIN_NAMESPACE
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 r2548
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 r2639 /*!
\qmltype BoxSet
\instantiates QBoxSet
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 r2712 \inqmlmodule QtCharts
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 r2639
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 r2727 \brief Building block for box-and-whiskers chart.
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 r2712 BoxSet represents one box-and-whiskers item. It takes five values to create a graphical
representation of range and three medians. There are two ways to give the values. The first one
is with constructor or with append method. In these the values have to be given in the following
order: lower extreme, lower quartile, median, upper quartile and upper extreme. The second
method is to create an empty QBoxSet instance and give the values using value specific methods.
\sa BoxPlotSeries
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 r2639 */
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 r2573 /*!
\qmlproperty string BoxSet::values
The values on the box-and-whiskers set.
*/
/*!
\qmlproperty string BoxSet::label
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 r2812 Defines the label of the category of the box-and-whiskers set.
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 r2573 */
/*!
\qmlproperty int BoxSet::count
The count of values on the box-and-whiskers set
*/
/*!
\qmlmethod void BoxSet::at(int index)
Returns the value at \a index position.
*/
/*!
\qmlmethod void BoxSet::append(qreal value)
Appends new value \a value to the end of set.
*/
/*!
\qmlmethod void BoxSet::clear()
Sets all values on the set to 0.
*/
/*!
\qmlmethod void BoxSet::setValue(int index, qreal value)
Sets a new \a value on the \a index position.
*/
/*!
\qmlsignal BoxSet::onClicked()
This signal is emitted when the user clicks with a mouse on top of box-and-whiskers item.
*/
Titta Heikkala
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 r2739 /*!
\qmlsignal BoxSet::onPressed()
This signal is emitted when the user presses with a mouse on top of box-and-whiskers item.
*/
/*!
\qmlsignal BoxSet::onReleased()
This signal is emitted when the user releases with a mouse on top of box-and-whiskers item.
*/
/*!
\qmlsignal BoxSet::onDoubleClicked()
This signal is emitted when the user doubleclicks with a mouse on top of box-and-whiskers item.
*/
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 r2573 /*!
\qmlsignal BoxSet::onHovered(bool status)
The signal is emitted if mouse is hovered on top of box-and-whiskers item.
Parameter \a status is true, if mouse entered on top of the item, and false if mouse left from top of the item.
*/
/*!
\qmlsignal BoxSet::onPenChanged()
This signal is emitted when the pen of the box-and-whiskers item has changed.
*/
/*!
\qmlsignal BoxSet::onBrushChanged()
This signal is emitted when the brush of the box-and-whiskers item has changed.
*/
/*!
\qmlsignal BoxSet::onChangedValues()
This signal is emitted when multiple values have been changed on the box-and-whiskers item.
*/
/*!
\qmlsignal BoxSet::onChangedValue(int index)
This signal is emitted values the value in the box-and-whiskers item has been modified.
Parameter \a index indicates the position of the modified value.
*/
/*!
\qmlsignal BoxSet::onCleared()
This signal is emitted when all the values on the set are cleared to 0.
*/
/*!
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 r2639 \qmltype BoxPlotSeries
\instantiates QBoxPlotSeries
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 r2712 \inqmlmodule QtCharts
\inherits AbstractSeries
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 r2727 \brief Series for creating box-and-whiskers chart.
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 r2712 BoxPlotSeries represents a series of data shown as box-and-whiskers bars. The purpose of this
class is to act as a container for single box-and-whiskers items. Each item is drawn to own
slot. If chart includes multiple instances of BoxPlotSeries then box-and-whiskers items with the
same index are drawn to same slot.
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 r2812 \note The slot, each item in BoxPlotSeries is drawn, represents a category in BarCategoryAxis.
The category labels have to be unique. If same category label is defined for several
box-and-whisker items only the first one is drawn.
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 r2712 The following QML shows how to create a simple box-and-whiskers chart:
\code
import QtQuick 2.0
import QtCharts 2.0
ChartView {
title: "Box Plot series"
width: 400
height: 300
theme: ChartView.ChartThemeBrownSand
legend.alignment: Qt.AlignBottom
BoxPlotSeries {
id: plotSeries
name: "Income"
BoxSet { label: "Jan"; values: [3, 4, 5.1, 6.2, 8.5] }
BoxSet { label: "Feb"; values: [5, 6, 7.5, 8.6, 11.8] }
BoxSet { label: "Mar"; values: [3.2, 5, 5.7, 8, 9.2] }
BoxSet { label: "Apr"; values: [3.8, 5, 6.4, 7, 8] }
BoxSet { label: "May"; values: [4, 5, 5.2, 6, 7] }
}
}
\endcode
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 r2573
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 r2712 \beginfloatleft
\image examples_qmlboxplot.png
\endfloat
\clearfloat
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 r2812
\sa BoxSet, BarCategoryAxis
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 r2573 */
Titta Heikkala
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 r2639
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 r2573 /*!
\qmlmethod BoxPlotSeries::append(string label, VariantList values)
Appends a new box-and-whiskers set with \a label and \a values to the series.
*/
/*!
\qmlmethod BoxPlotSeries::append(BoxSet box)
Appends the \a box to the series.
*/
/*!
\qmlmethod BoxPlotSeries::insert(int index, string label, VariantList values)
Inserts a new box-and-whiskers set with \a label and \a values at the \a index position.
*/
/*!
\qmlmethod BoxPlotSeries::remove(QBoxSet boxset)
Removes the \a boxset from the series.
*/
/*!
\qmlmethod BoxPlotSeries::clear()
Removes all boxsets from the series. Deletes removed sets.
*/
/*!
\qmlsignal BoxPlotSeries::onClicked(BoxSet boxset);
Signal is emitted when the user clicks the \a boxset on the chart.
*/
/*!
\qmlsignal BoxPlotSeries::onHovered(bool status, BoxSet boxset);
Signal is emitted when there is change in hover \a status over \a boxset.
*/
Titta Heikkala
Fix BoxPlotSeries documentation...
 r2756 /*!
\qmlsignal BoxPlotSeries::onPressed(BoxSet boxset)
This signal is emitted when the user presses the \a boxset on the chart.
*/
/*!
\qmlsignal BoxPlotSeries::onReleased(BoxSet boxset)
This signal is emitted when the user releases the \a boxset on the chart.
*/
/*!
\qmlsignal BoxPlotSeries::onDoubleClicked(BoxSet boxset)
This signal is emitted when the user doubleclicks the \a boxset on the chart.
*/
Mika Salmela
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 r2573 /*!
\qmlsignal BoxPlotSeries::onCountChanged();
Signal is emitted when there is change in count of box-and-whiskers items in the series.
*/
/*!
\qmlsignal BoxPlotSeries::onBoxsetsAdded()
Signal is emitted when new box-and-whiskers sets are added to the series.
*/
/*!
\qmlsignal BoxPlotSeries::onBoxsetsRemoved()
Signal is emitted when new box-and-whiskers sets are removed from the series.
*/
/*!
\qmlproperty AbstractAxis BoxPlotSeries::axisX
The x axis used for the series. If you leave both axisX and axisXTop undefined, a BarCategoriesAxis is created for
the series.
\sa axisXTop
*/
/*!
\qmlproperty AbstractAxis BoxPlotSeries::axisY
The y axis used for the series. If you leave both axisY and axisYRight undefined, a ValueAxis is created for
the series.
\sa axisYRight
*/
/*!
\qmlproperty AbstractAxis BoxPlotSeries::axisXTop
The x axis used for the series, drawn on top of the chart view. Note that you can only provide either axisX or
axisXTop, but not both.
\sa axisX
*/
/*!
\qmlproperty AbstractAxis BoxPlotSeries::axisYRight
The y axis used for the series, drawn to the right on the chart view. Note that you can only provide either axisY
or axisYRight, but not both.
\sa axisY
*/
/*!
\qmlproperty bool BoxPlotSeries::boxOutlineVisible
This property configures the visibility of the middle box outline.
*/
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 r2584 /*!
\qmlproperty qreal BoxPlotSeries::boxWidth
This property configures the width of the box-and-whiskers item. The value signifies the relative
width of the box-and-whiskers item inside its own slot. The value can between 0.0 and 1.0. Negative values
are clamped to 0.0 and values over 1.0 are clamped to 1.0.
*/
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 r2573 /*!
\qmlproperty Pen BoxPlotSeries::pen
This property configures the pen of the box-and-whiskers items.
*/
/*!
\qmlproperty Brush BoxPlotSeries::brush
This property configures the brush of the box-and-whiskers items.
*/
Titta Heikkala
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 r2682 /*!
\qmlproperty int BoxPlotSeries::count
The count of sets in series.
*/
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 r2573 /*!
\qmlsignal BoxPlotSeries::onBoxOutlineVisibilityChanged()
Signal is emitted when the middle box outline visibility is changed.
*/
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 r2584 /*!
\qmlsignal BoxPlotSeries::onBoxWidthChanged()
Signal is emitted when the width of the box-and-whiskers item is changed.
*/
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 r2573 /*!
\qmlsignal BoxPlotSeries::onPenChanged()
Signal is emitted when the pen for box-and-whiskers items has changed.
*/
/*!
\qmlsignal BoxPlotSeries::onBrushChanged()
Signal is emitted when the brush for box-and-whiskers items has changed.
*/
/*!
\qmlsignal BoxPlotSeries::onAxisXChanged(AbstractAxis axis)
Signal is emitted when there is change in X axis.
*/
/*!
\qmlsignal BoxPlotSeries::onAxisYChanged(AbstractAxis axis)
Signal is emitted when there is change in Y axis.
*/
/*!
\qmlsignal BoxPlotSeries::onAxisXTopChanged(AbstractAxis axis)
Signal is emitted when there is change in top X axis.
*/
/*!
\qmlsignal BoxPlotSeries::onAxisYRightChanged(AbstractAxis axis)
Signal is emitted when there is change in Y right axis.
*/
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 DeclarativeBoxSet::DeclarativeBoxSet(const QString label, QObject *parent)
: QBoxSet(label, parent)
{
connect(this, SIGNAL(valuesChanged()), this, SIGNAL(changedValues()));
connect(this, SIGNAL(valueChanged(int)), this, SIGNAL(changedValue(int)));
Titta Heikkala
Add possibility to set brush image via QML API...
 r2681 connect(this, SIGNAL(brushChanged()), this, SLOT(handleBrushChanged()));
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 }
QVariantList DeclarativeBoxSet::values()
{
QVariantList values;
for (int i(0); i < 5; i++)
values.append(QVariant(QBoxSet::at(i)));
return values;
}
void DeclarativeBoxSet::setValues(QVariantList values)
{
for (int i(0); i < values.count(); i++) {
if (values.at(i).canConvert(QVariant::Double))
QBoxSet::append(values[i].toDouble());
}
}
Titta Heikkala
Add possibility to set brush image via QML API...
 r2681 QString DeclarativeBoxSet::brushFilename() const
{
return m_brushFilename;
}
void DeclarativeBoxSet::setBrushFilename(const QString &brushFilename)
{
QImage brushImage(brushFilename);
if (QBoxSet::brush().textureImage() != brushImage) {
QBrush brush = QBoxSet::brush();
brush.setTextureImage(brushImage);
QBoxSet::setBrush(brush);
m_brushFilename = brushFilename;
m_brushImage = brushImage;
emit brushFilenameChanged(brushFilename);
}
}
void DeclarativeBoxSet::handleBrushChanged()
{
// If the texture image of the brush has changed along the brush
// the brush file name needs to be cleared.
if (!m_brushFilename.isEmpty() && QBoxSet::brush().textureImage() != m_brushImage) {
m_brushFilename.clear();
emit brushFilenameChanged(QString(""));
}
}
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 r2548 // =====================================================
Titta Heikkala
Qt Charts project file structure change...
 r2712 DeclarativeBoxPlotSeries::DeclarativeBoxPlotSeries(QQuickItem *parent) :
Mika Salmela
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 r2548 QBoxPlotSeries(parent),
m_axes(new DeclarativeAxes(this))
{
connect(m_axes, SIGNAL(axisXChanged(QAbstractAxis*)), this, SIGNAL(axisXChanged(QAbstractAxis*)));
connect(m_axes, SIGNAL(axisYChanged(QAbstractAxis*)), this, SIGNAL(axisYChanged(QAbstractAxis*)));
connect(m_axes, SIGNAL(axisXTopChanged(QAbstractAxis*)), this, SIGNAL(axisXTopChanged(QAbstractAxis*)));
connect(m_axes, SIGNAL(axisYRightChanged(QAbstractAxis*)), this, SIGNAL(axisYRightChanged(QAbstractAxis*)));
connect(this, SIGNAL(hovered(bool, QBoxSet*)), this, SLOT(onHovered(bool, QBoxSet*)));
connect(this, SIGNAL(clicked(QBoxSet*)), this, SLOT(onClicked(QBoxSet*)));
Titta Heikkala
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 r2681 connect(this, SIGNAL(brushChanged()), this, SLOT(handleBrushChanged()));
Titta Heikkala
Add pressed, released and doubleClicked signals...
 r2739 connect(this, SIGNAL(pressed(QBoxSet*)), this, SLOT(onPressed(QBoxSet*)));
connect(this, SIGNAL(released(QBoxSet*)), this, SLOT(onReleased(QBoxSet*)));
connect(this, SIGNAL(doubleClicked(QBoxSet*)), this, SLOT(onDoubleClicked(QBoxSet*)));
Mika Salmela
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 r2548 }
void DeclarativeBoxPlotSeries::classBegin()
{
}
void DeclarativeBoxPlotSeries::componentComplete()
{
foreach (QObject *child, children()) {
if (qobject_cast<DeclarativeBoxSet *>(child)) {
QBoxPlotSeries::append(qobject_cast<DeclarativeBoxSet *>(child));
} else if (qobject_cast<QVBoxPlotModelMapper *>(child)) {
QVBoxPlotModelMapper *mapper = qobject_cast<QVBoxPlotModelMapper *>(child);
mapper->setSeries(this);
}
}
}
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Qt Charts project file structure change...
 r2712 QQmlListProperty<QObject> DeclarativeBoxPlotSeries::seriesChildren()
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 r2548 {
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 r2712 return QQmlListProperty<QObject>(this, 0, &DeclarativeBoxPlotSeries::appendSeriesChildren ,0,0,0);
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 r2548 }
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Qt Charts project file structure change...
 r2712 void DeclarativeBoxPlotSeries::appendSeriesChildren(QQmlListProperty<QObject> *list, QObject *element)
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 r2548 {
// Empty implementation; the children are parsed in componentComplete instead
Q_UNUSED(list);
Q_UNUSED(element);
}
DeclarativeBoxSet *DeclarativeBoxPlotSeries::at(int index)
{
QList<QBoxSet *> setList = boxSets();
if (index >= 0 && index < setList.count())
return qobject_cast<DeclarativeBoxSet *>(setList[index]);
return 0;
}
DeclarativeBoxSet *DeclarativeBoxPlotSeries::insert(int index, const QString label, QVariantList values)
{
DeclarativeBoxSet *barset = new DeclarativeBoxSet(label, this);
barset->setValues(values);
if (QBoxPlotSeries::insert(index, barset))
return barset;
delete barset;
return 0;
}
void DeclarativeBoxPlotSeries::onHovered(bool status, QBoxSet *boxset)
{
emit hovered(status, qobject_cast<DeclarativeBoxSet *>(boxset));
}
void DeclarativeBoxPlotSeries::onClicked(QBoxSet *boxset)
{
emit clicked(qobject_cast<DeclarativeBoxSet *>(boxset));
}
Titta Heikkala
Add pressed, released and doubleClicked signals...
 r2739 void DeclarativeBoxPlotSeries::onPressed(QBoxSet *boxset)
{
emit pressed(qobject_cast<DeclarativeBoxSet *>(boxset));
}
void DeclarativeBoxPlotSeries::onReleased(QBoxSet *boxset)
{
emit released(qobject_cast<DeclarativeBoxSet *>(boxset));
}
void DeclarativeBoxPlotSeries::onDoubleClicked(QBoxSet *boxset)
{
emit doubleClicked(qobject_cast<DeclarativeBoxSet *>(boxset));
}
Titta Heikkala
Add possibility to set brush image via QML API...
 r2681 QString DeclarativeBoxPlotSeries::brushFilename() const
{
return m_brushFilename;
}
void DeclarativeBoxPlotSeries::setBrushFilename(const QString &brushFilename)
{
QImage brushImage(brushFilename);
if (QBoxPlotSeries::brush().textureImage() != brushImage) {
QBrush brush = QBoxPlotSeries::brush();
brush.setTextureImage(brushImage);
QBoxPlotSeries::setBrush(brush);
m_brushFilename = brushFilename;
m_brushImage = brushImage;
emit brushFilenameChanged(brushFilename);
}
}
void DeclarativeBoxPlotSeries::handleBrushChanged()
{
// If the texture image of the brush has changed along the brush
// the brush file name needs to be cleared.
if (!m_brushFilename.isEmpty() && QBoxPlotSeries::brush().textureImage() != m_brushImage) {
m_brushFilename.clear();
emit brushFilenameChanged(QString(""));
}
}
Mika Salmela
A new box-and-whiskers series type added to charts....
 r2548 #include "moc_declarativeboxplotseries.cpp"
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_END_NAMESPACE