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Diffstat (limited to 'src/qchart.cpp')
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diff --git a/src/qchart.cpp b/src/qchart.cpp deleted file mode 100644 index 16391b9a..00000000 --- a/src/qchart.cpp +++ /dev/null @@ -1,872 +0,0 @@ -/**************************************************************************** -** -** 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 "qchart.h" -#include "qchart_p.h" -#include "legendscroller_p.h" -#include "qlegend_p.h" -#include "chartbackground_p.h" -#include "qabstractaxis.h" -#include "abstractchartlayout_p.h" -#include "charttheme_p.h" -#include "chartpresenter_p.h" -#include "chartdataset_p.h" -#include <QGraphicsScene> -#include <QGraphicsSceneResizeEvent> - -QTCOMMERCIALCHART_BEGIN_NAMESPACE - -/*! - \enum QChart::ChartTheme - - This enum describes the theme used by the chart. - - \value ChartThemeLight The default theme - \value ChartThemeBlueCerulean - \value ChartThemeDark - \value ChartThemeBrownSand - \value ChartThemeBlueNcs - \value ChartThemeHighContrast - \value ChartThemeBlueIcy - \value ChartThemeQt - */ - -/*! - \enum QChart::AnimationOption - - For enabling/disabling animations. Defaults to NoAnimation. - - \value NoAnimation - \value GridAxisAnimations - \value SeriesAnimations - \value AllAnimations - */ - -/*! - \enum QChart::ChartType - - This enum describes the chart type. - - \value ChartTypeUndefined - \value ChartTypeCartesian - \value ChartTypePolar - */ - -/*! - \class QChart - \inmodule Qt Charts - \brief Main chart API for Qt Charts. - - QChart is a QGraphicsWidget that you can show in a QGraphicsScene. It manages the graphical - representation of different types of series and other chart related objects like legend and - axes. If you simply want to show a chart in a layout, you can use the - convenience class QChartView instead of QChart. - \sa QChartView, QPolarChart - */ - -/*! - \property QChart::animationOptions - The animation \a options for the chart. Animations are enabled/disabled based on this setting. - */ - -/*! - \property QChart::backgroundVisible - Specifies whether the chart background is visible or not. - \sa setBackgroundBrush(), setBackgroundPen(), plotAreaBackgroundVisible - */ - -/*! - \property QChart::dropShadowEnabled - If set to true, the background drop shadow effect is enabled. If set to false, it is disabled. Note that the drop - shadow effect depends on theme, which means the setting may be changed if you switch to another theme. - */ - -/*! - \property QChart::backgroundRoundness - The diameter of the rounding cirle at the corners of the chart background. - */ - -/*! - \property QChart::minimumMargins - Minimum margins between the plot area (axes) and the edge of the chart widget. - This property is deprecated; use margins property instead. - - \sa margins - */ - -/*! - \property QChart::margins - Margins between the plot area (axes) and the edge of the chart widget. - */ - -/*! - \property QChart::theme - Theme is a built-in collection of UI style related settings applied for all visual elements of a chart, like colors, - pens, brushes, and fonts of series, axes, title, and legend. \l {Chart themes demo} shows an example with a few - different themes. - \note Changing the theme will overwrite all customizations previously applied to the series. - */ - -/*! - \property QChart::title - Title is the name (label) of a chart. It is shown as a headline on top of the chart. Chart title supports html formatting. - */ - -/*! - \property QChart::chartType - Chart type indicates if the chart is a cartesian chart or a polar chart. - This property is set internally and it is read only. - \sa QPolarChart - */ - -/*! - \property QChart::plotAreaBackgroundVisible - Specifies whether the chart plot area background is visible or not. - \note By default the plot area background is not visible and the plot area uses - the general chart background. - \sa setPlotAreaBackgroundBrush(), setPlotAreaBackgroundPen(), backgroundVisible - */ - -/*! - \property QChart::localizeNumbers - \since QtCharts 2.0 - When \c{true}, all generated numbers appearing in various series and axis labels will be - localized using the QLocale set with the locale property. - When \c{false}, the "C" locale is always used. - Defaults to \c{false}. - \note This property doesn't affect QDateTimeAxis labels, which always use the QLocale set with - the locale property. - - \sa locale -*/ - -/*! - \property QChart::locale - \since QtCharts 2.0 - Sets the locale used to format various chart labels when localizeNumbers is \c{true}. - This also determines the locale used to format QDateTimeAxis labels regardless of - localizeNumbers property. - Defaults to application default locale at the time the chart is constructed. - - \sa localizeNumbers -*/ - -/*! - \internal - Constructs a chart object of \a type which is a child of a \a parent. - Parameter \a wFlags is passed to the QGraphicsWidget constructor. - This constructor is called only by subclasses. -*/ -QChart::QChart(QChart::ChartType type, QGraphicsItem *parent, Qt::WindowFlags wFlags) - : QGraphicsWidget(parent, wFlags), - d_ptr(new QChartPrivate(this, type)) -{ - d_ptr->init(); -} - -/*! - Constructs a chart object which is a child of a \a parent. - Parameter \a wFlags is passed to the QGraphicsWidget constructor. - */ -QChart::QChart(QGraphicsItem *parent, Qt::WindowFlags wFlags) - : QGraphicsWidget(parent, wFlags), - d_ptr(new QChartPrivate(this, ChartTypeCartesian)) -{ - d_ptr->init(); -} - -/*! - Destroys the chart object and its children, like series and axis objects added to it. - */ -QChart::~QChart() -{ - //start by deleting dataset, it will remove all series and axes - delete d_ptr->m_dataset; - d_ptr->m_dataset = 0; -} - -/*! - Adds the \a series onto the chart and takes the ownership of it. - - \note A newly added series is attached to no axes by default, including any axes that were created for the chart - using createDefaultAxes() before the series was added to the chart. If no axes are attached to - the newly added series before the chart is shown, the series will get drawn as if it had axes with ranges - that exactly fit the series to the plot area of the chart. This can be confusing if the same chart also displays other - series that have properly attached axes, so always make sure you either call createDefaultAxes() after - a series has been added or explicitly attach axes for the series. - - \sa removeSeries(), removeAllSeries(), createDefaultAxes(), QAbstractSeries::attachAxis() - */ -void QChart::addSeries(QAbstractSeries *series) -{ - Q_ASSERT(series); - d_ptr->m_dataset->addSeries(series); -} - -/*! - Removes the \a series from the chart. - The chart releases its ownership of the specified \a series object. - - \sa addSeries(), removeAllSeries() - */ -void QChart::removeSeries(QAbstractSeries *series) -{ - Q_ASSERT(series); - d_ptr->m_dataset->removeSeries(series); -} - -/*! - Removes and deletes all series objects that have been added to the chart. - - \sa addSeries(), removeSeries() - */ -void QChart::removeAllSeries() -{ - foreach (QAbstractSeries *s , d_ptr->m_dataset->series()){ - removeSeries(s); - delete s; - } -} - -/*! - Sets the \a brush that is used for painting the background of the chart area. - */ -void QChart::setBackgroundBrush(const QBrush &brush) -{ - d_ptr->m_presenter->setBackgroundBrush(brush); -} - -/*! - Gets the brush that is used for painting the background of the chart area. - */ -QBrush QChart::backgroundBrush() const -{ - return d_ptr->m_presenter->backgroundBrush(); -} - -/*! - Sets the \a pen that is used for painting the background of the chart area. - */ -void QChart::setBackgroundPen(const QPen &pen) -{ - d_ptr->m_presenter->setBackgroundPen(pen); -} - -/*! - Gets the pen that is used for painting the background of the chart area. - */ -QPen QChart::backgroundPen() const -{ - return d_ptr->m_presenter->backgroundPen(); -} - -void QChart::setTitle(const QString &title) -{ - d_ptr->m_presenter->setTitle(title); -} - -QString QChart::title() const -{ - return d_ptr->m_presenter->title(); -} - -/*! - Sets the \a font that is used for drawing the chart title. - */ -void QChart::setTitleFont(const QFont &font) -{ - d_ptr->m_presenter->setTitleFont(font); -} - -/*! - Gets the font that is used for drawing the chart title. - */ -QFont QChart::titleFont() const -{ - return d_ptr->m_presenter->titleFont(); -} - -/*! - Sets the \a brush used for drawing the title text. - */ -void QChart::setTitleBrush(const QBrush &brush) -{ - d_ptr->m_presenter->setTitleBrush(brush); -} - -/*! - Returns the brush used for drawing the title text. - */ -QBrush QChart::titleBrush() const -{ - return d_ptr->m_presenter->titleBrush(); -} - -void QChart::setTheme(QChart::ChartTheme theme) -{ - d_ptr->m_themeManager->setTheme(theme); -} - -QChart::ChartTheme QChart::theme() const -{ - return d_ptr->m_themeManager->theme()->id(); -} - -/*! - Zooms in the view by a factor of two. - */ -void QChart::zoomIn() -{ - d_ptr->zoomIn(2.0); -} - -/*! - Zooms in the view to a maximum level at which \a rect is still fully visible. - \note This is not supported for polar charts. - */ -void QChart::zoomIn(const QRectF &rect) -{ - if (d_ptr->m_type == QChart::ChartTypePolar) - return; - d_ptr->zoomIn(rect); -} - -/*! - Zooms out the view by a factor of two. - */ -void QChart::zoomOut() -{ - d_ptr->zoomOut(2.0); -} - -/*! - Zooms in the view by a custom \a factor. - - A factor over 1.0 zooms the view in and factor between 0.0 and 1.0 zooms out. - */ -void QChart::zoom(qreal factor) -{ - if (qFuzzyCompare(factor, 0)) - return; - - if (qFuzzyCompare(factor, (qreal)1.0)) - return; - - if (factor < 0) - return; - - if (factor > 1.0) - d_ptr->zoomIn(factor); - else - d_ptr->zoomOut(1.0 / factor); -} - - -/*! - Resets the series domains to what they were before any zoom method was called. - Note that this will also reset any scrolls and explicit axis range settings done between - the first zoom operation and calling this method. If no zoom operation has been - done, this method does nothing. - */ -void QChart::zoomReset() -{ - d_ptr->zoomReset(); -} - -/*! - Returns true if any series has a zoomed domain. - */ -bool QChart::isZoomed() -{ - return d_ptr->isZoomed(); -} - -/*! - Returns a pointer to the horizontal axis attached to the specified \a series. - If no \a series is specified, the first horizontal axis added to the chart is returned. - - \sa addAxis(), QAbstractSeries::attachAxis() - */ -QAbstractAxis *QChart::axisX(QAbstractSeries *series) const -{ - QList<QAbstractAxis *> axisList = axes(Qt::Horizontal, series); - if (axisList.count()) - return axisList[0]; - return 0; -} - -/*! - Returns a pointer to the vertical axis attached to the specified \a series. - If no \a series is specified, the first vertical axis added to the chart is returned. - - \sa addAxis(), QAbstractSeries::attachAxis() - */ -QAbstractAxis *QChart::axisY(QAbstractSeries *series) const -{ - QList<QAbstractAxis *> axisList = axes(Qt::Vertical, series); - if (axisList.count()) - return axisList[0]; - return 0; -} - -/*! - Returns the axes attached to the \a series with \a orientation. If no \a series is provided, - then all axes added to the chart with the specified orientation are returned. - \sa addAxis(), createDefaultAxes() - */ -QList<QAbstractAxis *> QChart::axes(Qt::Orientations orientation, QAbstractSeries *series) const -{ - QList<QAbstractAxis *> result ; - - if (series) { - foreach (QAbstractAxis *axis, series->attachedAxes()){ - if (orientation.testFlag(axis->orientation())) - result << axis; - } - } else { - foreach (QAbstractAxis *axis, d_ptr->m_dataset->axes()){ - if (orientation.testFlag(axis->orientation()) && !result.contains(axis)) - result << axis; - } - } - - return result; -} - -/*! - Creates axes for the chart based on the series that have already been added to the chart. Any axes previously added to - the chart will be deleted. - - \note This function has to be called after all series have been added to the chart. The axes created by this function - will NOT get automatically attached to any series added to the chart after this function has been called. - A series with no axes attached will by default scale to utilize the entire plot area of the chart, which can be confusing - if there are other series with properly attached axes also present. - - \table - \header - \li Series type - \li X-axis - \li Y-axis - \row - \li QXYSeries - \li QValueAxis - \li QValueAxis - \row - \li QBarSeries - \li QBarCategoryAxis - \li QValueAxis - \row - \li QPieSeries - \li None - \li None - \endtable - - If there are several QXYSeries derived series added to the chart and no series of other types have been added, then only one pair of axes is created. - If there are several series of different types added to the chart, then each series gets its own axes pair. - - The axes specific to the series can be later obtained from the chart by providing the series as the parameter for axes() function call. - QPieSeries does not create any axes. - - \sa axisX(), axisY(), axes(), setAxisX(), setAxisY(), QAbstractSeries::attachAxis() - */ -void QChart::createDefaultAxes() -{ - d_ptr->m_dataset->createDefaultAxes(); -} - -/*! - Returns the legend object of the chart. Ownership stays with the chart. - */ -QLegend *QChart::legend() const -{ - return d_ptr->m_legend; -} - -void QChart::setMinimumMargins(const QMargins &margins) -{ - qWarning() << "QChart::setMinimumMargins is deprecated. Use QChart::setMargins instead."; - d_ptr->m_presenter->layout()->setMargins(margins); -} - -QMargins QChart::minimumMargins() const -{ - qWarning() << "QChart::minimumMargins is deprecated. Use QChart::margins instead."; - return d_ptr->m_presenter->layout()->margins(); -} - -void QChart::setMargins(const QMargins &margins) -{ - d_ptr->m_presenter->layout()->setMargins(margins); -} - -QMargins QChart::margins() const -{ - return d_ptr->m_presenter->layout()->margins(); -} - -QChart::ChartType QChart::chartType() const -{ - return d_ptr->m_type; -} - -/*! - Returns the the rectangle within which the drawing of the chart is done. - It does not include the area defined by margins. - */ -QRectF QChart::plotArea() const -{ - return d_ptr->m_presenter->geometry(); -} - -/*! - Sets the \a brush for the background of the plot area of the chart. - - \sa plotArea(), plotAreaBackgroundVisible, setPlotAreaBackgroundPen(), plotAreaBackgroundBrush() - */ -void QChart::setPlotAreaBackgroundBrush(const QBrush &brush) -{ - d_ptr->m_presenter->setPlotAreaBackgroundBrush(brush); -} - -/*! - Returns the brush for the background of the plot area of the chart. - - \sa plotArea(), plotAreaBackgroundVisible, plotAreaBackgroundPen(), setPlotAreaBackgroundBrush() - */ -QBrush QChart::plotAreaBackgroundBrush() const -{ - return d_ptr->m_presenter->plotAreaBackgroundBrush(); -} - -/*! - Sets the \a pen for the background of the plot area of the chart. - - \sa plotArea(), plotAreaBackgroundVisible, setPlotAreaBackgroundBrush(), plotAreaBackgroundPen() - */ -void QChart::setPlotAreaBackgroundPen(const QPen &pen) -{ - d_ptr->m_presenter->setPlotAreaBackgroundPen(pen); -} - -/*! - Returns the pen for the background of the plot area of the chart. - - \sa plotArea(), plotAreaBackgroundVisible, plotAreaBackgroundBrush(), setPlotAreaBackgroundPen() - */ -QPen QChart::plotAreaBackgroundPen() const -{ - return d_ptr->m_presenter->plotAreaBackgroundPen(); -} - -void QChart::setPlotAreaBackgroundVisible(bool visible) -{ - d_ptr->m_presenter->setPlotAreaBackgroundVisible(visible); -} - -bool QChart::isPlotAreaBackgroundVisible() const -{ - return d_ptr->m_presenter->isPlotAreaBackgroundVisible(); -} - -void QChart::setLocalizeNumbers(bool localize) -{ - d_ptr->m_presenter->setLocalizeNumbers(localize); -} - -bool QChart::localizeNumbers() const -{ - return d_ptr->m_presenter->localizeNumbers(); -} - -void QChart::setLocale(const QLocale &locale) -{ - d_ptr->m_presenter->setLocale(locale); -} - -QLocale QChart::locale() const -{ - return d_ptr->m_presenter->locale(); -} - -void QChart::setAnimationOptions(AnimationOptions options) -{ - d_ptr->m_presenter->setAnimationOptions(options); -} - -QChart::AnimationOptions QChart::animationOptions() const -{ - return d_ptr->m_presenter->animationOptions(); -} - -/*! - Scrolls the visible area of the chart by the distance defined in the \a dx and \a dy. - - For polar charts, \a dx indicates the angle along angular axis instead of distance. - */ -void QChart::scroll(qreal dx, qreal dy) -{ - d_ptr->scroll(dx,dy); -} - -void QChart::setBackgroundVisible(bool visible) -{ - d_ptr->m_presenter->setBackgroundVisible(visible); -} - -bool QChart::isBackgroundVisible() const -{ - return d_ptr->m_presenter->isBackgroundVisible(); -} - -void QChart::setDropShadowEnabled(bool enabled) -{ - d_ptr->m_presenter->setBackgroundDropShadowEnabled(enabled); -} - -bool QChart::isDropShadowEnabled() const -{ - return d_ptr->m_presenter->isBackgroundDropShadowEnabled(); -} - -void QChart::setBackgroundRoundness(qreal diameter) -{ - d_ptr->m_presenter->setBackgroundRoundness(diameter); -} - -qreal QChart::backgroundRoundness() const -{ - return d_ptr->m_presenter->backgroundRoundness(); -} - -/*! - Returns all series that are added to the chart. - - \sa addSeries(), removeSeries(), removeAllSeries() -*/ -QList<QAbstractSeries *> QChart::series() const -{ - return d_ptr->m_dataset->series(); -} - -/*! - Adds the \a axis to the chart and attaches it to the \a series as a bottom-aligned horizontal axis. - The chart takes ownership of both the \a axis and the \a series. - Any horizontal axes previously attached to the \a series are deleted. - - \sa axisX(), axisY(), setAxisY(), createDefaultAxes(), QAbstractSeries::attachAxis() -*/ -void QChart::setAxisX(QAbstractAxis *axis ,QAbstractSeries *series) -{ - QList<QAbstractAxis*> list = axes(Qt::Horizontal, series); - - foreach (QAbstractAxis* a, list) { - d_ptr->m_dataset->removeAxis(a); - delete a; - } - - if (!d_ptr->m_dataset->axes().contains(axis)) - d_ptr->m_dataset->addAxis(axis, Qt::AlignBottom); - d_ptr->m_dataset->attachAxis(series, axis); -} - -/*! - Adds the \a axis to the chart and attaches it to the \a series as a left-aligned vertical axis. - The chart takes ownership of both the \a axis and the \a series. - Any vertical axes previously attached to the \a series are deleted. - - \sa axisX(), axisY(), setAxisX(), createDefaultAxes(), QAbstractSeries::attachAxis() -*/ -void QChart::setAxisY(QAbstractAxis *axis ,QAbstractSeries *series) -{ - QList<QAbstractAxis*> list = axes(Qt::Vertical, series); - - foreach (QAbstractAxis* a, list) { - d_ptr->m_dataset->removeAxis(a); - delete a; - } - - if (!d_ptr->m_dataset->axes().contains(axis)) - d_ptr->m_dataset->addAxis(axis, Qt::AlignLeft); - d_ptr->m_dataset->attachAxis(series, axis); -} - -/*! - Adds the \a axis to the chart with \a alignment. The chart takes the ownership of the axis. - - \sa removeAxis(), createDefaultAxes(), QAbstractSeries::attachAxis() -*/ -void QChart::addAxis(QAbstractAxis *axis, Qt::Alignment alignment) -{ - d_ptr->m_dataset->addAxis(axis, alignment); -} - -/*! - Removes the \a axis from the chart. - The chart releases its ownership of the specified \a axis object. - - \sa addAxis(), createDefaultAxes(), QAbstractSeries::detachAxis() -*/ -void QChart::removeAxis(QAbstractAxis *axis) -{ - d_ptr->m_dataset->removeAxis(axis); -} - -/*! - Returns the value in the \a series domain that corresponds to the \a position relative to chart widget. -*/ -QPointF QChart::mapToValue(const QPointF &position, QAbstractSeries *series) -{ - return d_ptr->m_dataset->mapToValue(position, series); -} - -/*! - Returns the position on the chart widget that corresponds to the \a value in the \a series domain. -*/ -QPointF QChart::mapToPosition(const QPointF &value, QAbstractSeries *series) -{ - return d_ptr->m_dataset->mapToPosition(value, series); -} - -////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// - -QChartPrivate::QChartPrivate(QChart *q, QChart::ChartType type): - q_ptr(q), - m_legend(0), - m_dataset(new ChartDataSet(q)), - m_presenter(new ChartPresenter(q, type)), - m_themeManager(new ChartThemeManager(q)), - m_type(type) -{ - QObject::connect(m_dataset, SIGNAL(seriesAdded(QAbstractSeries*)), m_presenter, SLOT(handleSeriesAdded(QAbstractSeries*))); - QObject::connect(m_dataset, SIGNAL(seriesRemoved(QAbstractSeries*)), m_presenter, SLOT(handleSeriesRemoved(QAbstractSeries*))); - QObject::connect(m_dataset, SIGNAL(axisAdded(QAbstractAxis*)), m_presenter, SLOT(handleAxisAdded(QAbstractAxis*))); - QObject::connect(m_dataset, SIGNAL(axisRemoved(QAbstractAxis*)), m_presenter, SLOT(handleAxisRemoved(QAbstractAxis*))); - QObject::connect(m_dataset, SIGNAL(seriesAdded(QAbstractSeries*)), m_themeManager, SLOT(handleSeriesAdded(QAbstractSeries*))); - QObject::connect(m_dataset, SIGNAL(seriesRemoved(QAbstractSeries*)), m_themeManager, SLOT(handleSeriesRemoved(QAbstractSeries*))); - QObject::connect(m_dataset, SIGNAL(axisAdded(QAbstractAxis*)), m_themeManager, SLOT(handleAxisAdded(QAbstractAxis*))); - QObject::connect(m_dataset, SIGNAL(axisRemoved(QAbstractAxis*)), m_themeManager, SLOT(handleAxisRemoved(QAbstractAxis*))); -} - -QChartPrivate::~QChartPrivate() -{ -} - -// Hackish solution to the problem of explicitly assigning the default pen/brush/font -// to a series or axis and having theme override it: -// Initialize pens, brushes, and fonts to something nobody is likely to ever use, -// so that default theme initialization will always set these properly. -QPen &QChartPrivate::defaultPen() -{ - static QPen defaultPen(QColor(1, 2, 0), 0.93247536); - return defaultPen; -} - -QBrush &QChartPrivate::defaultBrush() -{ - static QBrush defaultBrush(QColor(1, 2, 0), Qt::Dense7Pattern); - return defaultBrush; -} - -QFont &QChartPrivate::defaultFont() -{ - static bool defaultFontInitialized(false); - static QFont defaultFont; - if (!defaultFontInitialized) { - defaultFont.setPointSizeF(8.34563465); - defaultFontInitialized = true; - } - return defaultFont; -} - -void QChartPrivate::init() -{ - m_legend = new LegendScroller(q_ptr); - q_ptr->setTheme(QChart::ChartThemeLight); - q_ptr->setLayout(m_presenter->layout()); -} - -void QChartPrivate::zoomIn(qreal factor) -{ - QRectF rect = m_presenter->geometry(); - rect.setWidth(rect.width() / factor); - rect.setHeight(rect.height() / factor); - rect.moveCenter(m_presenter->geometry().center()); - zoomIn(rect); -} - -void QChartPrivate::zoomIn(const QRectF &rect) -{ - if (!rect.isValid()) - return; - - QRectF r = rect.normalized(); - const QRectF geometry = m_presenter->geometry(); - r.translate(-geometry.topLeft()); - - if (!r.isValid()) - return; - - QPointF zoomPoint(r.center().x() / geometry.width(), r.center().y() / geometry.height()); - m_presenter->setState(ChartPresenter::ZoomInState,zoomPoint); - m_dataset->zoomInDomain(r); - m_presenter->setState(ChartPresenter::ShowState,QPointF()); - -} - -void QChartPrivate::zoomReset() -{ - m_dataset->zoomResetDomain(); -} - -bool QChartPrivate::isZoomed() -{ - return m_dataset->isZoomedDomain(); -} - -void QChartPrivate::zoomOut(qreal factor) -{ - const QRectF geometry = m_presenter->geometry(); - - QRectF r; - r.setSize(geometry.size() / factor); - r.moveCenter(QPointF(geometry.size().width()/2 ,geometry.size().height()/2)); - if (!r.isValid()) - return; - - QPointF zoomPoint(r.center().x() / geometry.width(), r.center().y() / geometry.height()); - m_presenter->setState(ChartPresenter::ZoomOutState,zoomPoint); - m_dataset->zoomOutDomain(r); - m_presenter->setState(ChartPresenter::ShowState,QPointF()); -} - -void QChartPrivate::scroll(qreal dx, qreal dy) -{ - if (dx < 0) m_presenter->setState(ChartPresenter::ScrollLeftState,QPointF()); - if (dx > 0) m_presenter->setState(ChartPresenter::ScrollRightState,QPointF()); - if (dy < 0) m_presenter->setState(ChartPresenter::ScrollUpState,QPointF()); - if (dy > 0) m_presenter->setState(ChartPresenter::ScrollDownState,QPointF()); - - m_dataset->scrollDomain(dx, dy); - m_presenter->setState(ChartPresenter::ShowState,QPointF()); -} - -#include "moc_qchart.cpp" - -QTCOMMERCIALCHART_END_NAMESPACE |