HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Commit - r1524:0b7cf651b670

Added property definitions to QChart

Tero Ahola -

r1524:0b7cf651b670

parent child

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r1524:0b7cf651b670

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examples/legend/mainwidget.cpp 0 -1

             /****************************************************************************
             **
             ** Copyright (C) 2012 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 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
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #include "mainwidget.h"
             #include <QChart>
             #include <QChartView>
             #include <QPushButton>
             #include <QLabel>
             #include <QDebug>
             #include <QBarSet>
             #include <QBarSeries>
             #include <QLegend>
             #include <QFormLayout>
             QTCOMMERCIALCHART_USE_NAMESPACE
             MainWidget::MainWidget(QWidget *parent) :
                 QWidget(parent)
             {
                 // Create buttons for ui
                 m_buttonLayout = new QGridLayout();
                 QPushButton *detachLegendButton = new QPushButton("detach legend");
                 connect(detachLegendButton, SIGNAL(clicked()), this, SLOT(detachLegend()));
                 m_buttonLayout->addWidget(detachLegendButton, 0, 0);
                 QPushButton *attachLegendButton = new QPushButton("attach legend");
                 connect(attachLegendButton, SIGNAL(clicked()), this, SLOT(attachLegend()));
                 m_buttonLayout->addWidget(attachLegendButton, 1, 0);
                 QPushButton *addSetButton = new QPushButton("add barset");
                 connect(addSetButton, SIGNAL(clicked()), this, SLOT(addBarset()));
                 m_buttonLayout->addWidget(addSetButton, 2, 0);
                 QPushButton *removeBarsetButton = new QPushButton("remove barset");
                 connect(removeBarsetButton, SIGNAL(clicked()), this, SLOT(removeBarset()));
                 m_buttonLayout->addWidget(removeBarsetButton, 3, 0);
                 QPushButton *leftButton = new QPushButton("Align legend left");
                 connect(leftButton, SIGNAL(clicked()), this, SLOT(setLegendLeft()));
                 m_buttonLayout->addWidget(leftButton, 4, 0);
                 QPushButton *rightButton = new QPushButton("Align legend right");
                 connect(rightButton, SIGNAL(clicked()), this, SLOT(setLegendRight()));
                 m_buttonLayout->addWidget(rightButton, 5, 0);
                 QPushButton *topButton = new QPushButton("Align legend top");
                 connect(topButton, SIGNAL(clicked()), this, SLOT(setLegendTop()));
                 m_buttonLayout->addWidget(topButton, 6, 0);
                 QPushButton *bottomButton = new QPushButton("Align legend bottom");
                 connect(bottomButton, SIGNAL(clicked()), this, SLOT(setLegendBottom()));
                 m_buttonLayout->addWidget(bottomButton, 7, 0);
                 QPushButton *boldButton = new QPushButton("Toggle bold");
                 connect(boldButton, SIGNAL(clicked()), this, SLOT(toggleBold()));
                 m_buttonLayout->addWidget(boldButton, 8, 0);
                 QPushButton *italicButton = new QPushButton("Toggle italic");
                 connect(italicButton, SIGNAL(clicked()), this, SLOT(toggleItalic()));
                 m_buttonLayout->addWidget(italicButton, 9, 0);
                 m_legendPosX = new QDoubleSpinBox();
                 m_legendPosY = new QDoubleSpinBox();
                 m_legendWidth = new QDoubleSpinBox();
                 m_legendHeight = new QDoubleSpinBox();
                 connect(m_legendPosX, SIGNAL(valueChanged(double)), this, SLOT(updateLegendLayout()));
                 connect(m_legendPosY, SIGNAL(valueChanged(double)), this, SLOT(updateLegendLayout()));
                 connect(m_legendWidth, SIGNAL(valueChanged(double)), this, SLOT(updateLegendLayout()));
                 connect(m_legendHeight, SIGNAL(valueChanged(double)), this, SLOT(updateLegendLayout()));
                 QFormLayout* legendLayout = new QFormLayout();
                 legendLayout->addRow("Horizontal position", m_legendPosX);
                 legendLayout->addRow("Vertical position", m_legendPosY);
                 legendLayout->addRow("Width", m_legendWidth);
                 legendLayout->addRow("Height", m_legendHeight);
                 m_legendSettings = new QGroupBox("Detached legend");
                 m_legendSettings->setLayout(legendLayout);
                 m_buttonLayout->addWidget(m_legendSettings);
                 m_legendSettings->setVisible(false);
                 // Create chart view with the chart
                 m_chart = new QChart();
                 m_chartView = new QChartView(m_chart, this);
                 // Create spinbox to modify font size
                 m_fontSize = new QDoubleSpinBox();
                 m_fontSize->setValue(m_chart->legend()->font().pointSizeF());
                 connect(m_fontSize, SIGNAL(valueChanged(double)), this, SLOT(fontSizeChanged()));
                 QFormLayout* fontLayout = new QFormLayout();
                 fontLayout->addRow("Legend font size", m_fontSize);
                 // Create layout for grid and detached legend
                 m_mainLayout = new QGridLayout();
                 m_mainLayout->addLayout(m_buttonLayout, 0, 0);
                 m_mainLayout->addLayout(fontLayout,1,0);
                 m_mainLayout->addWidget(m_chartView, 0, 1, 3, 1);
                 setLayout(m_mainLayout);
                 createSeries();
             }
             void MainWidget::createSeries()
             {
                 m_series = new QBarSeries();
                 addBarset();
                 addBarset();
                 addBarset();
                 addBarset();
                 m_chart->addSeries(m_series);
                 m_chart->setTitle("Legend detach example");
             //![1]
                 m_chart->legend()->setVisible(true);
                 m_chart->legend()->setAlignment(Qt::AlignBottom);
             //![1]
                 m_chart->axisY()->setNiceNumbersEnabled(true);
                 m_chartView->setRenderHint(QPainter::Antialiasing);
             }
             void MainWidget::showLegendSpinbox()
             {
                 m_legendSettings->setVisible(true);
                 QRectF chartViewRect = m_chartView->rect();
-                QRectF legendRect = m_chart->legend()->boundingRect();
                 m_legendPosX->setMinimum(0);
                 m_legendPosX->setMaximum(chartViewRect.width());
                 m_legendPosX->setValue(150);
                 m_legendPosY->setMinimum(0);
                 m_legendPosY->setMaximum(chartViewRect.height());
                 m_legendPosY->setValue(150);
                 m_legendWidth->setMinimum(0);
                 m_legendWidth->setMaximum(chartViewRect.width());
                 m_legendWidth->setValue(150);
                 m_legendHeight->setMinimum(0);
                 m_legendHeight->setMaximum(chartViewRect.height());
                 m_legendHeight->setValue(75);
             }
             void MainWidget::hideLegendSpinbox()
             {
                 m_legendSettings->setVisible(false);
             }
             void MainWidget::detachLegend()
             {
             //![2]
                 QLegend *legend = m_chart->legend();
                 legend->detachFromChart();
                 m_chart->legend()->setBackgroundVisible(true);
                 m_chart->legend()->setBrush(QBrush(QColor(128,128,128,128)));
                 m_chart->legend()->setPen(QPen(QColor(192,192,192,192)));
             //![2]
                 showLegendSpinbox();
                 updateLegendLayout();
                 update();
             }
             void MainWidget::attachLegend()
             {
             //![3]
                 QLegend *legend = m_chart->legend();
                 legend->attachToChart();
                 m_chart->legend()->setBackgroundVisible(false);
             //![3]
                 hideLegendSpinbox();
                 update();
             }
             void MainWidget::addBarset()
             {
                 QBarSet *barSet = new QBarSet(QString("set ") + QString::number(m_series->count()));
                 qreal delta = m_series->count() * 0.1;
                 *barSet << QPointF(0.0 + delta, 1 + delta) << QPointF(1.0 + delta, 2 + delta) << QPointF(2.0 + delta, 3 + delta) << QPointF(3.0 + delta, 4 + delta);
                 m_series->append(barSet);
             }
             void MainWidget::removeBarset()
             {
                 QList<QBarSet*> sets = m_series->barSets();
                 if (sets.count() > 0) {
                     m_series->remove(sets.at(sets.count()-1));
                 }
             }
             void MainWidget::setLegendLeft()
             {
                 m_chart->legend()->setAlignment(Qt::AlignLeft);
             }
             void MainWidget::setLegendRight()
             {
                 m_chart->legend()->setAlignment(Qt::AlignRight);
             }
             void MainWidget::setLegendTop()
             {
                 m_chart->legend()->setAlignment(Qt::AlignTop);
             }
             void MainWidget::setLegendBottom()
             {
                 m_chart->legend()->setAlignment(Qt::AlignBottom);
             }
             void MainWidget::toggleBold()
             {
                 QFont font = m_chart->legend()->font();
                 font.setBold(!font.bold());
                 m_chart->legend()->setFont(font);
             }
             void MainWidget::toggleItalic()
             {
                 QFont font = m_chart->legend()->font();
                 font.setItalic(!font.italic());
                 m_chart->legend()->setFont(font);
             }
             void MainWidget::fontSizeChanged()
             {
                 QFont font = m_chart->legend()->font();
                 font.setPointSizeF(m_fontSize->value());
                 m_chart->legend()->setFont(font);
             }
             void MainWidget::updateLegendLayout()
             {
             //![4]
                 m_chart->legend()->setGeometry(m_legendPosX->value()
                                                ,m_legendPosY->value()
                                                ,m_legendWidth->value()
                                                ,m_legendHeight->value());
                 m_chart->legend()->update();
             //![4]
             }

plugins/declarative/declarativechart.cpp +61 -1

             /****************************************************************************
             **
             ** Copyright (C) 2012 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 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
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #include "declarativechart.h"
             #include <QPainter>
             #include "declarativelineseries.h"
             #include "declarativeareaseries.h"
             #include "declarativebarseries.h"
             #include "declarativepieseries.h"
             #include "declarativesplineseries.h"
             #include "declarativescatterseries.h"
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             /*!
                 \qmlclass ChartView DeclarativeChart
                 ChartView element is the parent that is responsible for showing different chart series types.
                 The following QML shows how to create a simple chart with one pie series:
                 \snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 1
                 \snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 2
                 \snippet ../examples/qmlpiechart/qml/qmlpiechart/main.qml 3
                 \beginfloatleft
                 \image examples_qmlpiechart.png
                 \endfloat
                 \clearfloat
             */
             /*!
               \qmlproperty Theme ChartView::theme
               Theme defines the visual appearance of the chart, including for example colors, fonts, line
               widths and chart background.
             */
             /*!
               \qmlproperty Animation ChartView::animation
               Animation configuration of the chart. One of ChartView.NoAnimation, ChartView.GridAxisAnimations,
               ChartView.SeriesAnimations or ChartView.AllAnimations.
             */
             /*!
               \qmlproperty Font ChartView::titleFont
               The title font of the chart
               See the \l {Font} {QML Font Element} for detailed documentation.
             */
             /*!
               \qmlproperty string ChartView::title
               The title of the chart, shown on top of the chart.
               \sa ChartView::titleColor
             */
             /*!
               \qmlproperty string ChartView::titleColor
               The color of the title text.
             */
             /*!
               \qmlproperty Axis ChartView::axisX
               The x-axis of the chart.
             */
             /*!
               \qmlproperty Axis ChartView::axisY
               The default y-axis of the chart.
             */
             /*!
               \qmlproperty Legend ChartView::legend
               The legend of the chart. Legend lists all the series, pie slices and bar sets added on the chart.
             */
             /*!
               \qmlproperty int ChartView::count
               The count of series added to the chart.
             */
             /*!
               \qmlproperty color ChartView::backgroundColor
               The color of the chart's background. By default background color is defined by chart theme.
               \sa ChartView::theme
             */
             /*!
               \qmlproperty bool ChartView::dropShadowEnabled
               The chart's border drop shadow. Set to true to enable drop shadow.
             */
             /*!
+              \qmlproperty real ChartView::topMargin
+              The space between the top of chart view and the top of the plot area. The title (if non-empty) is drawn on top margin
+              area of the chart view. Top margin area is also used by legend, if aligned to top.
+            */
+            /*!
+              \qmlproperty real ChartView::bottomMargin
+              The space between the bottom of chart view and the bottom of the plot area. The bottom margin area may be used by
+              legend (if aligned to bottom), x-axis, x-axis labels and x-axis tick marks.
+            */
+            /*!
+              \qmlproperty real ChartView::leftMargin
+              The space between the left side of chart view and the left side of the plot area. The left margin area may be used by
+              legend (if aligned to left), y-axis, y-axis labels and y-axis tick marks.
+            */
+            /*!
+              \qmlproperty real ChartView::rightMargin
+              The space between the right side of chart view and the right side of the plot area. The right margin area may be used
+              by legend (if aligned to right).
+            */
+            /*!
               \qmlmethod AbstractSeries ChartView::series(int index)
               Returns the series with \a index on the chart. This allows you to loop through the series of a chart together with
               the count property of the chart.
             */
             /*!
               \qmlmethod AbstractSeries ChartView::series(string name)
               Returns the first series on the chart with \a name. If there is no series with that name, returns null.
             */
             /*!
               \qmlmethod AbstractSeries ChartView::createSeries(SeriesType type, string name)
               Creates a series object of \a type to the chart. For example:
               \code
                 var scatter = chartView.createSeries(ChartView.SeriesTypeScatter, "scatter series");
                 scatter.markerSize = 22;
                 scatter.append(1.1, 2.0);
               \endcode
             */
             /*!
               \qmlmethod Axis ChartView::axisY(QAbstractSeries *series)
               The y-axis of the series. This is the same as the default y-axis of the chart as multiple y-axes are not yet supported.
             */
             /*!
               \qmlmethod ChartView::zoomY(real factor)
               Zooms in by \a factor on the center of the chart.
             */
             /*!
               \qmlmethod ChartView::scrollLeft(real pixels)
               Scrolls to left by \a pixels. This is a convenience function that suits for example for key navigation.
               \sa Axis::min, Axis::max
             */
             /*!
               \qmlmethod ChartView::scrollRight(real pixels)
               Scrolls to right by \a pixels. This is a convenience function that suits for example for key navigation.
               \sa Axis::min, Axis::max
             */
             /*!
               \qmlmethod ChartView::scrollUp(real pixels)
               Scrolls up by \a pixels. This is a convenience function that suits for example for key navigation.
               \sa Axis::min, Axis::max
             */
             /*!
               \qmlmethod ChartView::scrollDown(real pixels)
               Scrolls down by \a pixels. This is a convenience function that suits for example for key navigation.
               \sa Axis::min, Axis::max
             */
             DeclarativeChart::DeclarativeChart(QDeclarativeItem *parent)
                 : QDeclarativeItem(parent),
                   m_chart(new QChart(this))
             {
                 setFlag(QGraphicsItem::ItemHasNoContents, false);
             //    m_chart->axisX()->setNiceNumbersEnabled(false);
+                m_chartMargins = m_chart->margins();
+                connect(m_chart, SIGNAL(marginsChanged(QRectF)), this, SLOT(handleMarginsChanged(QRectF)));
+            }
+            void DeclarativeChart::handleMarginsChanged(QRectF newMargins)
+            {
+                if (m_chartMargins.top() != newMargins.top())
+                    topMarginChanged(m_chart->margins().top());
+                if (m_chartMargins.bottom() != newMargins.bottom())
+                    bottomMarginChanged(m_chart->margins().bottom());
+                if (m_chartMargins.left() != newMargins.left())
+                    leftMarginChanged(m_chart->margins().left());
+                if (m_chartMargins.right() != newMargins.right())
+                    rightMarginChanged(m_chart->margins().right());
+                m_chartMargins = m_chart->margins();
             }
             DeclarativeChart::~DeclarativeChart()
             {
                 delete m_chart;
             }
             void DeclarativeChart::childEvent(QChildEvent *event)
             {
                 if (event->type() == QEvent::ChildAdded) {
                     if (qobject_cast<QAbstractSeries *>(event->child())) {
                         m_chart->addSeries(qobject_cast<QAbstractSeries *>(event->child()));
                     }
                 }
             }
             void DeclarativeChart::componentComplete()
             {
                 foreach(QObject *child, children()) {
                     if (qobject_cast<QAbstractSeries *>(child)) {
             //            qDebug() << "DeclarativeChart::componentComplete(), add: " << child;
                         // TODO: how about optional y-axis?
                         m_chart->addSeries(qobject_cast<QAbstractSeries *>(child));
                     }
                 }
                 QDeclarativeItem::componentComplete();
             }
             void DeclarativeChart::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
             {
             //    qDebug() << "DeclarativeChart::geometryChanged" << newGeometry.width() << newGeometry.height();
                 if (newGeometry.isValid()) {
                     if (newGeometry.width() > 0 && newGeometry.height() > 0) {
                         m_chart->resize(newGeometry.width(), newGeometry.height());
                     }
                 }
                 QDeclarativeItem::geometryChanged(newGeometry, oldGeometry);
             }
             void DeclarativeChart::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
             {
                 Q_UNUSED(option)
                 Q_UNUSED(widget)
                 // TODO: optimized?
                 painter->setRenderHint(QPainter::Antialiasing, true);
             }
             void DeclarativeChart::setTheme(DeclarativeChart::Theme theme)
             {
                 QChart::ChartTheme chartTheme = (QChart::ChartTheme) theme;
                 if (chartTheme != m_chart->theme())
                     m_chart->setTheme(chartTheme);
             }
             DeclarativeChart::Theme DeclarativeChart::theme()
             {
                 return (DeclarativeChart::Theme) m_chart->theme();
             }
             void DeclarativeChart::setAnimationOptions(DeclarativeChart::Animation animations)
             {
                 QChart::AnimationOption animationOptions = (QChart::AnimationOption) animations;
                 if (animationOptions != m_chart->animationOptions())
                     m_chart->setAnimationOptions(animationOptions);
             }
             DeclarativeChart::Animation DeclarativeChart::animationOptions()
             {
                 if (m_chart->animationOptions().testFlag(QChart::AllAnimations))
                     return DeclarativeChart::AllAnimations;
                 else if (m_chart->animationOptions().testFlag(QChart::GridAxisAnimations))
                     return DeclarativeChart::GridAxisAnimations;
                 else if (m_chart->animationOptions().testFlag(QChart::SeriesAnimations))
                     return DeclarativeChart::SeriesAnimations;
                 else
                     return DeclarativeChart::NoAnimation;
             }
             void DeclarativeChart::setTitle(QString title)
             {
                 if (title != m_chart->title())
                     m_chart->setTitle(title);
             }
             QString DeclarativeChart::title()
             {
                 return m_chart->title();
             }
             QAxis *DeclarativeChart::axisX()
             {
                 return m_chart->axisX();
             }
             QAxis *DeclarativeChart::axisY(QAbstractSeries *series)
             {
                 return m_chart->axisY(series);
             }
             QLegend *DeclarativeChart::legend()
             {
                 return m_chart->legend();
             }
             QVariantList DeclarativeChart::axisXLabels()
             {
                 QVariantList labels;
                 foreach (qreal value, m_chart->axisX()->categories()->values()) {
                     labels.append(value);
                     labels.append(m_chart->axisX()->categories()->label(value));
                 }
                 return labels;
             }
             void DeclarativeChart::setAxisXLabels(QVariantList list)
             {
                 QVariant value(QVariant::Invalid);
                 foreach (QVariant element, list) {
                     if (value.isValid() && element.type() == QVariant::String) {
                         m_chart->axisX()->categories()->insert(value.toDouble(), element.toString());
                         value = QVariant(QVariant::Invalid);
                     } else {
                         if (element.canConvert(QVariant::Double))
                             value = element;
                     }
                 }
                 emit axisLabelsChanged();
             }
             void DeclarativeChart::setTitleColor(QColor color)
             {
                 QBrush b = m_chart->titleBrush();
                 if (color != b.color()) {
                     b.setColor(color);
                     m_chart->setTitleBrush(b);
-                    emit titleColorChanged();
+                    emit titleColorChanged(color);
                 }
             }
             QFont DeclarativeChart::titleFont() const
             {
                 return m_chart->titleFont();
             }
             void DeclarativeChart::setTitleFont(const QFont& font)
             {
                 m_chart->setTitleFont(font);
             }
             QColor DeclarativeChart::titleColor()
             {
                 return m_chart->titleBrush().color();
             }
             void DeclarativeChart::setBackgroundColor(QColor color)
             {
                 QBrush b = m_chart->backgroundBrush();
                 if (b.style() != Qt::SolidPattern || color != b.color()) {
                     b.setStyle(Qt::SolidPattern);
                     b.setColor(color);
                     m_chart->setBackgroundBrush(b);
                     emit backgroundColorChanged();
                 }
             }
             QColor DeclarativeChart::backgroundColor()
             {
                 return m_chart->backgroundBrush().color();
             }
             int DeclarativeChart::count()
             {
                 return m_chart->series().count();
             }
             void DeclarativeChart::setDropShadowEnabled(bool enabled)
             {
                 if (enabled != m_chart->isDropShadowEnabled()) {
                     m_chart->setDropShadowEnabled(enabled);
                     dropShadowEnabledChanged(enabled);
                 }
             }
             bool DeclarativeChart::dropShadowEnabled()
             {
                 return m_chart->isDropShadowEnabled();
             }
+            qreal DeclarativeChart::topMargin()
+            {
+                return m_chart->margins().top();
+            }
+            qreal DeclarativeChart::bottomMargin()
+            {
+                return m_chart->margins().bottom();
+            }
+            qreal DeclarativeChart::leftMargin()
+            {
+                return m_chart->margins().left();
+            }
+            qreal DeclarativeChart::rightMargin()
+            {
+                return m_chart->margins().right();
+            }
             void DeclarativeChart::zoom(qreal factor)
             {
                 m_chart->zoom(factor);
             }
             void DeclarativeChart::scrollLeft(qreal pixels)
             {
                 m_chart->scroll(QPointF(pixels, 0));
             }
             void DeclarativeChart::scrollRight(qreal pixels)
             {
                 m_chart->scroll(QPointF(-pixels, 0));
             }
             void DeclarativeChart::scrollUp(qreal pixels)
             {
                 m_chart->scroll(QPointF(0, pixels));
             }
             void DeclarativeChart::scrollDown(qreal pixels)
             {
                 m_chart->scroll(QPointF(0, -pixels));
             }
             QAbstractSeries *DeclarativeChart::series(int index)
             {
                 if (index < m_chart->series().count()) {
                     return m_chart->series().at(index);
                 }
                 return 0;
             }
             QAbstractSeries *DeclarativeChart::series(QString seriesName)
             {
                 foreach(QAbstractSeries *series, m_chart->series()) {
                     if (series->name() == seriesName)
                         return series;
                 }
                 return 0;
             }
             QAbstractSeries *DeclarativeChart::createSeries(DeclarativeChart::SeriesType type, QString name)
             {
                 QAbstractSeries *series = 0;
                 switch (type) {
                 case DeclarativeChart::SeriesTypeLine:
                     series = new DeclarativeLineSeries();
                     break;
                 case DeclarativeChart::SeriesTypeArea:
                     series = new DeclarativeAreaSeries();
                     break;
                 case DeclarativeChart::SeriesTypeBar:
                     series = new DeclarativeBarSeries();
                     break;
                 case DeclarativeChart::SeriesTypeStackedBar:
                     // TODO
                     break;
                 case DeclarativeChart::SeriesTypePercentBar:
                     // TODO
                     break;
                 case DeclarativeChart::SeriesTypeGroupedBar:
                     series = new DeclarativeGroupedBarSeries();
                     break;
                 case DeclarativeChart::SeriesTypePie:
                     series = new DeclarativePieSeries();
                     break;
                 case DeclarativeChart::SeriesTypeScatter:
                     series = new DeclarativeScatterSeries();
                     break;
                 case DeclarativeChart::SeriesTypeSpline:
                     series = new DeclarativeSplineSeries();
                     break;
                 default:
                     qWarning() << "Illegal series type";
                 }
                 series->setName(name);
                 m_chart->addSeries(series);
                 return series;
             }
             #include "moc_declarativechart.cpp"
             QTCOMMERCIALCHART_END_NAMESPACE

plugins/declarative/declarativechart.h +18 -2

             /****************************************************************************
             **
             ** Copyright (C) 2012 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 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
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #ifndef DECLARATIVECHART_H
             #define DECLARATIVECHART_H
             #include <QtCore/QtGlobal>
             #include <QDeclarativeItem>
             #include <qchart.h>
             #include <QAxis>
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             // TODO: Derive from QChart for easier definition of properties?
             class DeclarativeChart : public QDeclarativeItem
             // TODO: for QTQUICK2: extend QQuickPainterItem instead
             //class DeclarativeChart : public QQuickPaintedItem, public Chart
             {
                 Q_OBJECT
                 Q_PROPERTY(Theme theme READ theme WRITE setTheme)
                 Q_PROPERTY(Animation animationOptions READ animationOptions WRITE setAnimationOptions)
                 Q_PROPERTY(QString title READ title WRITE setTitle)
                 Q_PROPERTY(QFont titleFont READ titleFont WRITE setTitleFont)
                 Q_PROPERTY(QColor titleColor READ titleColor WRITE setTitleColor NOTIFY titleColorChanged)
                 Q_PROPERTY(QAxis *axisX READ axisX)
                 Q_PROPERTY(QAxis *axisY READ axisY)
                 Q_PROPERTY(QLegend *legend READ legend)
                 // TODO: how to define axis labels? This is not very convenient
                 Q_PROPERTY(QVariantList axisXLabels READ axisXLabels WRITE setAxisXLabels NOTIFY axisLabelsChanged)
                 Q_PROPERTY(int count READ count)
                 Q_PROPERTY(QColor backgroundColor READ backgroundColor WRITE setBackgroundColor NOTIFY backgroundColorChanged)
                 Q_PROPERTY(bool dropShadowEnabled READ dropShadowEnabled WRITE setDropShadowEnabled NOTIFY dropShadowEnabledChanged)
+                Q_PROPERTY(qreal topMargin READ topMargin NOTIFY topMarginChanged)
+                Q_PROPERTY(qreal bottomMargin READ bottomMargin NOTIFY bottomMarginChanged)
+                Q_PROPERTY(qreal leftMargin READ leftMargin NOTIFY leftMarginChanged)
+                Q_PROPERTY(qreal rightMargin READ rightMargin NOTIFY rightMarginChanged)
                 Q_ENUMS(Animation)
                 Q_ENUMS(Theme)
                 Q_ENUMS(SeriesType)
             public:
                 // duplicating enums from QChart to make the QML api namings 1-to-1 with the C++ api
                 enum Theme {
                     ChartThemeLight = 0,
                     ChartThemeBlueCerulean,
                     ChartThemeDark,
                     ChartThemeBrownSand,
                     ChartThemeBlueNcs,
                     ChartThemeHighContrast,
                     ChartThemeBlueIcy
                 };
                 enum Animation {
                     NoAnimation = 0x0,
                     GridAxisAnimations = 0x1,
                     SeriesAnimations =0x2,
                     AllAnimations = 0x3
                 };
                 enum SeriesType {
                     SeriesTypeLine,
                     SeriesTypeArea,
                     SeriesTypeBar,
                     SeriesTypeStackedBar,
                     SeriesTypePercentBar,
                     SeriesTypeGroupedBar,
                     SeriesTypePie,
                     SeriesTypeScatter,
                     SeriesTypeSpline
                 };
             public:
                 DeclarativeChart(QDeclarativeItem *parent = 0);
                 ~DeclarativeChart();
             public: // From QDeclarativeItem/QGraphicsItem
                 void childEvent(QChildEvent *event);
                 void componentComplete();
                 void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry);
                 void paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = 0);
             public:
                 void setTheme(DeclarativeChart::Theme theme);
                 DeclarativeChart::Theme theme();
                 void setAnimationOptions(DeclarativeChart::Animation animations);
                 DeclarativeChart::Animation animationOptions();
                 void setTitle(QString title);
                 QString title();
                 QAxis *axisX();
                 QLegend *legend();
                 QVariantList axisXLabels();
                 void setAxisXLabels(QVariantList list);
                 QFont titleFont() const;
                 void setTitleFont(const QFont& font);
                 void setTitleColor(QColor color);
                 QColor titleColor();
                 void setBackgroundColor(QColor color);
                 QColor backgroundColor();
                 int count();
                 void setDropShadowEnabled(bool enabled);
                 bool dropShadowEnabled();
+                qreal topMargin();
+                qreal bottomMargin();
+                qreal leftMargin();
+                qreal rightMargin();
             public:
                 Q_INVOKABLE QAbstractSeries *series(int index);
                 Q_INVOKABLE QAbstractSeries *series(QString seriesName);
                 Q_INVOKABLE QAbstractSeries *createSeries(DeclarativeChart::SeriesType type, QString name = "");
                 Q_INVOKABLE QAxis *axisY(QAbstractSeries *series = 0);
                 Q_INVOKABLE void zoom(qreal factor);
                 Q_INVOKABLE void scrollLeft(qreal pixels);
                 Q_INVOKABLE void scrollRight(qreal pixels);
                 Q_INVOKABLE void scrollUp(qreal pixels);
                 Q_INVOKABLE void scrollDown(qreal pixels);
             Q_SIGNALS:
                 void axisLabelsChanged();
-                void titleColorChanged();
+                void titleColorChanged(QColor color);
                 void backgroundColorChanged();
                 void dropShadowEnabledChanged(bool enabled);
+                void topMarginChanged(qreal margin);
+                void bottomMarginChanged(qreal margin);
+                void leftMarginChanged(qreal margin);
+                void rightMarginChanged(qreal margin);
-            public:
+            public Q_SLOTS:
+                void handleMarginsChanged(QRectF newMargins);
+            private:
                 // Extending QChart with DeclarativeChart is not possible because QObject does not support
                 // multi inheritance, so we now have a QChart as a member instead
                 QChart *m_chart;
+                QRectF m_chartMargins;
             };
             QTCOMMERCIALCHART_END_NAMESPACE
             #endif // DECLARATIVECHART_H

src/chartpresenter.cpp +4 0

             /****************************************************************************
              **
              ** Copyright (C) 2012 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 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
              ** $QT_END_LICENSE$
              **
              ****************************************************************************/
             #include "chartpresenter_p.h"
             #include "qchart.h"
             #include "qchart_p.h"
             #include "qaxis.h"
             #include "chartdataset_p.h"
             #include "charttheme_p.h"
             #include "chartanimator_p.h"
             #include "chartanimation_p.h"
             #include "qabstractseries_p.h"
             #include "qareaseries.h"
             #include "chartaxis_p.h"
             #include "chartaxisx_p.h"
             #include "chartaxisy_p.h"
             #include "areachartitem_p.h"
             #include "chartbackground_p.h"
             #include <QTimer>
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             ChartPresenter::ChartPresenter(QChart* chart,ChartDataSet* dataset):QObject(chart),
             m_chart(chart),
             m_animator(0),
             m_dataset(dataset),
             m_chartTheme(0),
             m_chartRect(QRectF(QPoint(0,0),m_chart->size())),
             m_options(QChart::NoAnimation),
             m_minLeftMargin(0),
             m_minBottomMargin(0),
             m_state(ShowState),
             m_backgroundItem(0),
             m_titleItem(0),
             m_marginBig(60),
             m_marginSmall(20),
             m_marginTiny(10),
             m_chartMargins(QRect(m_marginBig,m_marginBig,0,0))
             {
             }
             ChartPresenter::~ChartPresenter()
             {
                 delete m_chartTheme;
             }
             void ChartPresenter::setGeometry(const QRectF& rect)
             {
                 m_rect = rect;
                 Q_ASSERT(m_rect.isValid());
                 updateLayout();
             }
             void ChartPresenter::setMinimumMarginWidth(ChartAxis* axis, qreal width)
             {
                 switch(axis->axisType()){
                 case ChartAxis::X_AXIS:
                 {
                     if(width>m_chartRect.width()+ m_chartMargins.left()) {
                         m_minLeftMargin= width - m_chartRect.width();
                         updateLayout();
                     }
                     break;
                 }
                 case ChartAxis::Y_AXIS:
                 {
                     if(m_minLeftMargin!=width){
                         m_minLeftMargin= width;
                         updateLayout();
                     }
                     break;
                 }
                 }
             }
             void ChartPresenter::setMinimumMarginHeight(ChartAxis* axis, qreal height)
             {
                 switch(axis->axisType()){
                 case ChartAxis::X_AXIS:
                 {
                     if(m_minBottomMargin!=height) {
                         m_minBottomMargin= height;
                         updateLayout();
                     }
                     break;
                 }
                 case ChartAxis::Y_AXIS:
                 {
                     if(height>m_chartMargins.bottom()+m_chartRect.height()){
                         m_minBottomMargin= height - m_chartRect.height();
                         updateLayout();
                     }
                     break;
                 }
                 }
             }
             void ChartPresenter::handleAxisAdded(QAxis* axis,Domain* domain)
             {
                 ChartAxis* item;
                 if(axis == m_dataset->axisX()){
                     item = new ChartAxisX(axis,this);
                 }else{
                     item = new ChartAxisY(axis,this);
                 }
                 if(m_options.testFlag(QChart::GridAxisAnimations)){
                     item->setAnimator(m_animator);
                     item->setAnimation(new AxisAnimation(item));
                 }
                 if(axis==m_dataset->axisX()){
                     m_chartTheme->decorate(axis,true);
                     QObject::connect(domain,SIGNAL(rangeXChanged(qreal,qreal,int)),item,SLOT(handleRangeChanged(qreal,qreal,int)));
                     //initialize
                     item->handleRangeChanged(domain->minX(),domain->maxX(),domain->tickXCount());
                 }
                 else{
                     m_chartTheme->decorate(axis,false);
                     QObject::connect(domain,SIGNAL(rangeYChanged(qreal,qreal,int)),item,SLOT(handleRangeChanged(qreal,qreal,int)));
                     //initialize
                     item->handleRangeChanged(domain->minY(),domain->maxY(),domain->tickYCount());
                 }
                 QObject::connect(this,SIGNAL(geometryChanged(QRectF)),item,SLOT(handleGeometryChanged(QRectF)));
                 //initialize
                 if(m_chartRect.isValid()) item->handleGeometryChanged(m_chartRect);
                 m_axisItems.insert(axis, item);
             }
             void ChartPresenter::handleAxisRemoved(QAxis* axis)
             {
                 ChartAxis* item = m_axisItems.take(axis);
                 Q_ASSERT(item);
                 if(m_animator) m_animator->removeAnimation(item);
                 delete item;
             }
             void ChartPresenter::handleSeriesAdded(QAbstractSeries* series,Domain* domain)
             {
                 Chart *item = series->d_ptr->createGraphics(this);
                 Q_ASSERT(item);
                 QObject::connect(this,SIGNAL(geometryChanged(QRectF)),item,SLOT(handleGeometryChanged(QRectF)));
                 QObject::connect(domain,SIGNAL(domainChanged(qreal,qreal,qreal,qreal)),item,SLOT(handleDomainChanged(qreal,qreal,qreal,qreal)));
                 //initialize
                 item->handleDomainChanged(domain->minX(),domain->maxX(),domain->minY(),domain->maxY());
                 if(m_chartRect.isValid()) item->handleGeometryChanged(m_chartRect);
                 m_chartItems.insert(series,item);
             }
             void ChartPresenter::handleSeriesRemoved(QAbstractSeries* series)
             {
                 Chart* item = m_chartItems.take(series);
                 Q_ASSERT(item);
                 if(m_animator) {
                     //small hack to handle area animations
                     if(series->type() == QAbstractSeries::SeriesTypeArea){
                         QAreaSeries* areaSeries = static_cast<QAreaSeries*>(series);
                         AreaChartItem* area = static_cast<AreaChartItem*>(item);
                         m_animator->removeAnimation(area->upperLineItem());
                         if(areaSeries->lowerSeries())  m_animator->removeAnimation(area->lowerLineItem());
                     }else
                         m_animator->removeAnimation(item);
                 }
                 delete item;
             }
             void ChartPresenter::setTheme(QChart::ChartTheme theme,bool force)
             {
                 if(m_chartTheme && m_chartTheme->id() == theme) return;
                 delete m_chartTheme;
                 m_chartTheme = ChartTheme::createTheme(theme);
                 m_chartTheme->setForced(force);
                 m_chartTheme->decorate(m_chart);
                 m_chartTheme->decorate(m_chart->legend());
                 resetAllElements();
                 // We do not want "force" to stay on.
                 // Bar/pie are calling decorate when adding/removing slices/bars which means
                 // that to preserve users colors "force" must not be on.
                 m_chartTheme->setForced(false);
             }
             QChart::ChartTheme ChartPresenter::theme()
             {
                 return m_chartTheme->id();
             }
             void ChartPresenter::setAnimationOptions(QChart::AnimationOptions options)
             {
                 if(m_options!=options) {
                     m_options=options;
                     if(m_options!=QChart::NoAnimation && !m_animator) {
                         m_animator= new ChartAnimator(this);
                     }
                     resetAllElements();
                 }
             }
             void ChartPresenter::resetAllElements()
             {
                 QList<QAxis *> axisList = m_axisItems.uniqueKeys();
                 QList<QAbstractSeries *> seriesList = m_chartItems.uniqueKeys();
                 foreach(QAxis *axis, axisList) {
                     handleAxisRemoved(axis);
                     handleAxisAdded(axis,m_dataset->domain(axis));
                 }
                 foreach(QAbstractSeries *series, seriesList) {
                     handleSeriesRemoved(series);
                     handleSeriesAdded(series,m_dataset->domain(series));
             //        m_dataset->removeSeries(series);
             //        m_dataset->addSeries(series);
                 }
             }
             void ChartPresenter::zoomIn(qreal factor)
             {
                 QRectF rect = chartGeometry();
                 rect.setWidth(rect.width()/factor);
                 rect.setHeight(rect.height()/factor);
                 rect.moveCenter(chartGeometry().center());
                 zoomIn(rect);
             }
             void ChartPresenter::zoomIn(const QRectF& rect)
             {
                 QRectF r = rect.normalized();
                 r.translate(-m_chartMargins.topLeft());
                 if (!r.isValid())
                     return;
                 m_state = ZoomInState;
                 m_statePoint = QPointF(r.center().x()/chartGeometry().width(),r.center().y()/chartGeometry().height());
                 m_dataset->zoomInDomain(r,chartGeometry().size());
                 m_state = ShowState;
             }
             void ChartPresenter::zoomOut(qreal factor)
             {
                 m_state = ZoomOutState;
                 QRectF chartRect;
                 chartRect.setSize(chartGeometry().size());
                 QRectF rect;
                 rect.setSize(chartRect.size()/factor);
                 rect.moveCenter(chartRect.center());
                 if (!rect.isValid())
                     return;
                 m_statePoint = QPointF(rect.center().x()/chartGeometry().width(),rect.center().y()/chartGeometry().height());
                 m_dataset->zoomOutDomain(rect, chartRect.size());
                 m_state = ShowState;
             }
             void ChartPresenter::scroll(qreal dx,qreal dy)
             {
                 if(dx<0) m_state=ScrollLeftState;
                 if(dx>0) m_state=ScrollRightState;
                 if(dy<0) m_state=ScrollUpState;
                 if(dy>0) m_state=ScrollDownState;
                 m_dataset->scrollDomain(dx,dy,chartGeometry().size());
                 m_state = ShowState;
             }
             QChart::AnimationOptions ChartPresenter::animationOptions() const
             {
                 return m_options;
             }
             void ChartPresenter::updateLayout()
             {
                 if (!m_rect.isValid()) return;
+                QRectF oldChargMargins = m_chartMargins;
                 // recalculate title size
                 QSize titleSize;
                 int titlePadding=0;
                 if (m_titleItem) {
                     titleSize= m_titleItem->boundingRect().size().toSize();
                 }
                 //defaults
                 m_chartMargins = QRect(QPoint(m_minLeftMargin>m_marginBig?m_minLeftMargin:m_marginBig,m_marginBig),QPoint(m_marginBig,m_minBottomMargin>m_marginBig?m_minBottomMargin:m_marginBig));
                 titlePadding = m_chartMargins.top()/2;
                 QLegend* legend = m_chart->d_ptr->m_legend;
                 // recalculate legend position
                 if (legend != 0 && legend->isAttachedToChart() && legend->isEnabled()) {
                     // Reserve some space for legend
                     switch (legend->alignment()) {
                     case Qt::AlignTop: {
                         int ledgendSize = legend->minHeight();
                         int topPadding = 2*m_marginTiny + titleSize.height() + ledgendSize + m_marginTiny;
                         m_chartMargins = QRect(QPoint(m_chartMargins.left(),topPadding),QPoint(m_chartMargins.right(),m_chartMargins.bottom()));
                         m_legendMargins = QRect(QPoint(m_chartMargins.left(),topPadding - (ledgendSize + m_marginTiny)),QPoint(m_chartMargins.right(),m_rect.height()-topPadding + m_marginTiny));
                         titlePadding = m_marginTiny + m_marginTiny;
                         break;
                     }
                     case Qt::AlignBottom: {
                         int ledgendSize = legend->minHeight();
                         int bottomPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny + m_minBottomMargin;
                         m_chartMargins = QRect(QPoint(m_chartMargins.left(),m_chartMargins.top()),QPoint(m_chartMargins.right(),bottomPadding));
                         m_legendMargins = QRect(QPoint(m_chartMargins.left(),m_rect.height()-bottomPadding + m_marginTiny + m_minBottomMargin),QPoint(m_chartMargins.right(),m_marginTiny + m_marginSmall));
                         titlePadding = m_chartMargins.top()/2;
                         break;
                     }
                     case Qt::AlignLeft: {
                         int ledgendSize = legend->minWidth();
                         int leftPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny + m_minLeftMargin;
                         m_chartMargins = QRect(QPoint(leftPadding,m_chartMargins.top()),QPoint(m_chartMargins.right(),m_chartMargins.bottom()));
                         m_legendMargins = QRect(QPoint(m_marginTiny + m_marginSmall,m_chartMargins.top()),QPoint(m_rect.width()-leftPadding + m_marginTiny + m_minLeftMargin,m_chartMargins.bottom()));
                         titlePadding = m_chartMargins.top()/2;
                         break;
                     }
                     case Qt::AlignRight: {
                         int ledgendSize = legend->minWidth();
                         int rightPadding = m_marginTiny + m_marginSmall + ledgendSize + m_marginTiny;
                         m_chartMargins = QRect(QPoint(m_chartMargins.left(),m_chartMargins.top()),QPoint(rightPadding,m_chartMargins.bottom()));
                         m_legendMargins = QRect(QPoint(m_rect.width()- rightPadding+ m_marginTiny ,m_chartMargins.top()),QPoint(m_marginTiny + m_marginSmall,m_chartMargins.bottom()));
                         titlePadding = m_chartMargins.top()/2;
                         break;
                     }
                     default: {
                         break;
                     }
                     }
                 }
                 if(m_rect.width()<2*(m_chartMargins.top()+m_chartMargins.bottom()) || m_rect.height()< 2*(m_chartMargins.top() + m_chartMargins.bottom()))
                 {
                     m_chart->setMinimumSize(2*(m_chartMargins.top()+m_chartMargins.bottom()),2*(m_chartMargins.top() + m_chartMargins.bottom()));
                     return;
                 }
                 // recalculate title position
                 if (m_titleItem) {
                     QPointF center = m_rect.center() -m_titleItem->boundingRect().center();
                     m_titleItem->setPos(center.x(),titlePadding);
                 }
                 //recalculate background gradient
                 if (m_backgroundItem) {
                     m_backgroundItem->setRect(m_rect.adjusted(m_marginTiny,m_marginTiny, -m_marginTiny, -m_marginTiny));
                 }
                 QRectF chartRect = m_rect.adjusted(m_chartMargins.left(),m_chartMargins.top(),-m_chartMargins.right(),-m_chartMargins.bottom());
                 if (legend != 0 && legend->isAttachedToChart() && legend->isEnabled()) {
                     legend->setGeometry(m_rect.adjusted(m_legendMargins.left(),m_legendMargins.top(),-m_legendMargins.right(),-m_legendMargins.bottom()));
                 }
                 if(m_chartRect!=chartRect && chartRect.isValid()){
                     m_chartRect=chartRect;
                     emit geometryChanged(m_chartRect);
                 }
+                if (oldChargMargins != m_chartMargins)
+                    emit marginsChanged(m_chartMargins);
             }
             void ChartPresenter::createChartBackgroundItem()
             {
                 if (!m_backgroundItem) {
                     m_backgroundItem = new ChartBackground(rootItem());
                     m_backgroundItem->setPen(Qt::NoPen);
                     m_backgroundItem->setZValue(ChartPresenter::BackgroundZValue);
                 }
             }
             void ChartPresenter::createChartTitleItem()
             {
                 if (!m_titleItem) {
                     m_titleItem = new QGraphicsSimpleTextItem(rootItem());
                     m_titleItem->setZValue(ChartPresenter::BackgroundZValue);
                 }
             }
             void ChartPresenter::handleAnimationFinished()
             {
                m_animations.removeAll(qobject_cast<ChartAnimation*>(sender()));
                if(m_animations.empty()) emit animationsFinished();
             }
             void ChartPresenter::startAnimation(ChartAnimation* animation)
             {
                 if (animation->state() != QAbstractAnimation::Stopped) animation->stop();
                 QObject::connect(animation, SIGNAL(finished()),this,SLOT(handleAnimationFinished()),Qt::UniqueConnection);
                 if(!m_animations.isEmpty()){
                     m_animations.append(animation);
                 }
                 QTimer::singleShot(0, animation, SLOT(start()));
             }
             #include "moc_chartpresenter_p.cpp"
             QTCOMMERCIALCHART_END_NAMESPACE

src/chartpresenter_p.h +1 0

             /****************************************************************************
             **
             ** Copyright (C) 2012 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 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
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             //  W A R N I N G
             //  -------------
             //
             // This file is not part of the QtCommercial Chart API.  It exists purely as an
             // implementation detail.  This header file may change from version to
             // version without notice, or even be removed.
             //
             // We mean it.
             #ifndef CHARTPRESENTER_H
             #define CHARTPRESENTER_H
             #include "qchartglobal.h"
             #include "qchart.h" //becouse of QChart::ChartThemeId //TODO
             #include <QRectF>
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             class Chart;
             class QAbstractSeries;
             class ChartDataSet;
             class Domain;
             class ChartAxis;
             class ChartTheme;
             class ChartAnimator;
             class ChartBackground;
             class ChartAnimation;
             class ChartPresenter: public QObject
             {
                 Q_OBJECT
             public:
                 enum ZValues {
                     BackgroundZValue = -1,
                     ShadesZValue,
                     GridZValue,
                     SeriesZValue,
                     LineChartZValue = SeriesZValue,
                     BarSeriesZValue = SeriesZValue,
                     ScatterSeriesZValue = SeriesZValue,
                     PieSeriesZValue = SeriesZValue,
                     AxisZValue,
                     LegendZValue
                 };
                 enum State {
                     ShowState,
                     ScrollUpState,
                     ScrollDownState,
                     ScrollLeftState,
                     ScrollRightState,
                     ZoomInState,
                     ZoomOutState
                 };
                 ChartPresenter(QChart* chart,ChartDataSet *dataset);
                 virtual ~ChartPresenter();
                 ChartAnimator* animator() const { return m_animator; }
                 ChartTheme *chartTheme() const { return m_chartTheme; }
                 ChartDataSet *dataSet() const { return m_dataset; }
                 QGraphicsItem* rootItem() const { return m_chart; }
                 void setTheme(QChart::ChartTheme theme,bool force = true);
                 QChart::ChartTheme theme();
                 void setAnimationOptions(QChart::AnimationOptions options);
                 QChart::AnimationOptions animationOptions() const;
                 void zoomIn(qreal factor);
                 void zoomIn(const QRectF& rect);
                 void zoomOut(qreal factor);
                 void scroll(qreal dx,qreal dy);
                 void setGeometry(const QRectF& rect);
                 QRectF chartGeometry() const { return m_chartRect; }
                 void setMinimumMarginHeight(ChartAxis* axis, qreal height);
                 void setMinimumMarginWidth(ChartAxis* axis, qreal width);
                 qreal minimumLeftMargin() const { return m_minLeftMargin; }
                 qreal minimumBottomMargin() const { return m_minBottomMargin; }
                 void startAnimation(ChartAnimation* animation);
                 State state() const { return m_state; }
                 QPointF statePoint() const { return m_statePoint; }
             public: //TODO: fix me
                 void resetAllElements();
                 void createChartBackgroundItem();
                 void createChartTitleItem();
                 QRectF margins() const { return m_chartMargins;}
             public Q_SLOTS:
                 void handleSeriesAdded(QAbstractSeries* series,Domain* domain);
                 void handleSeriesRemoved(QAbstractSeries* series);
                 void handleAxisAdded(QAxis* axis,Domain* domain);
                 void handleAxisRemoved(QAxis* axis);
                 void updateLayout();
             private Q_SLOTS:
                 void handleAnimationFinished();
             Q_SIGNALS:
                 void geometryChanged(const QRectF& rect);
                 void animationsFinished();
+                void marginsChanged(QRectF margins);
             private:
                 QChart* m_chart;
                 ChartAnimator* m_animator;
                 ChartDataSet* m_dataset;
                 ChartTheme *m_chartTheme;
                 QMap<QAbstractSeries *, Chart *> m_chartItems;
                 QMap<QAxis *, ChartAxis *> m_axisItems;
                 QRectF m_rect;
                 QRectF m_chartRect;
                 QChart::AnimationOptions m_options;
                 qreal m_minLeftMargin;
                 qreal m_minBottomMargin;
                 State m_state;
                 QPointF m_statePoint;
                 QList<ChartAnimation*> m_animations;
             public: //TODO: fixme
                 ChartBackground* m_backgroundItem;
                 QGraphicsSimpleTextItem* m_titleItem;
                 int m_marginBig;
                 int m_marginSmall;
                 int m_marginTiny;
                 QRectF m_chartMargins;
                 QRectF m_legendMargins;
             };
             QTCOMMERCIALCHART_END_NAMESPACE
             #endif /* CHARTPRESENTER_H_ */

src/qchart.cpp +1 0

             /****************************************************************************
             **
             ** Copyright (C) 2012 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 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
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #include "qchart.h"
             #include "qchart_p.h"
             #include "legendscroller_p.h"
             #include "qlegend_p.h"
             #include "chartbackground_p.h"
             #include "qaxis.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
              */
             /*!
              \enum QChart::AnimationOption
              For enabling/disabling animations. Defaults to NoAnimation.
              \value NoAnimation
              \value GridAxisAnimations
              \value SeriesAnimations
              \value AllAnimations
              */
             /*!
              \class QChart
              \brief QtCommercial chart API.
              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
              QAxis and QLegend. If you simply want to show a chart in a layout, you can use the
              convenience class QChartView instead of QChart.
              \sa QChartView
              */
             /*!
              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())
             {
                 d_ptr->m_dataset = new ChartDataSet(this);
                 d_ptr->m_presenter = new ChartPresenter(this,d_ptr->m_dataset);
                 d_ptr->createConnections();
                 d_ptr->m_legend = new LegendScroller(this);
                 d_ptr->m_presenter->setTheme(QChart::ChartThemeLight, false);
+                connect(d_ptr->m_presenter, SIGNAL(marginsChanged(QRectF)), this, SIGNAL(marginsChanged(QRectF)));
             }
             /*!
              Destroys the object and it's children, like series and axis objects added to it.
              */
             QChart::~QChart()
             {
                 //delete first presenter , since this is a root of all the graphical items
                 delete d_ptr->m_presenter;
                 d_ptr->m_presenter=0;
             }
             /*!
              Adds the \a series and optional \a axisY onto the chart and takes the ownership of the objects.
              If auto scaling is enabled, re-scales the axes the series is bound to (both the x axis and
              the y axis).
              \sa removeSeries(), removeAllSeries()
              */
             void QChart::addSeries(QAbstractSeries *series, QAxis *axisY)
             {
                 Q_ASSERT(series);
                 d_ptr->m_dataset->addSeries(series, axisY);
             }
             /*!
              Removes the \a series specified in a perameter from the QChartView.
              It releses its ownership of the specified QChartSeries object.
              It does not delete the pointed QChartSeries data object
              \sa addSeries(), removeAllSeries()
              */
             void QChart::removeSeries(QAbstractSeries *series)
             {
                 Q_ASSERT(series);
                 d_ptr->m_dataset->removeSeries(series);
             }
             /*!
              Removes all the QChartSeries that have been added to the QChartView
              It also deletes the pointed QChartSeries data objects
              \sa addSeries(), removeSeries()
              */
             void QChart::removeAllSeries()
             {
                 d_ptr->m_dataset->removeAllSeries();
             }
             /*!
              Sets the \a brush that is used for painting the background of the chart area.
              */
             void QChart::setBackgroundBrush(const QBrush& brush)
             {
                 //TODO: refactor me
                 d_ptr->m_presenter->createChartBackgroundItem();
                 d_ptr->m_presenter->m_backgroundItem->setBrush(brush);
                 d_ptr->m_presenter->m_backgroundItem->update();
             }
             /*!
                 Gets the brush that is used for painting the background of the chart area.
              */
             QBrush QChart::backgroundBrush() const
             {
                 //TODO: refactor me
                 if (!d_ptr->m_presenter->m_backgroundItem) return QBrush();
                 return (d_ptr->m_presenter->m_backgroundItem)->brush();
             }
             /*!
              Sets the \a pen that is used for painting the background of the chart area.
              */
             void QChart::setBackgroundPen(const QPen& pen)
             {
                 //TODO: refactor me
                 d_ptr->m_presenter->createChartBackgroundItem();
                 d_ptr->m_presenter->m_backgroundItem->setPen(pen);
                 d_ptr->m_presenter->m_backgroundItem->update();
             }
             /*!
                 Gets the pen that is used for painting the background of the chart area.
              */
             QPen QChart::backgroundPen() const
             {
                 //TODO: refactor me
                 if (!d_ptr->m_presenter->m_backgroundItem) return QPen();
                 return d_ptr->m_presenter->m_backgroundItem->pen();
             }
             /*!
              Sets the chart \a title. The description text that is drawn above the chart.
              */
             void QChart::setTitle(const QString& title)
             {
                 //TODO: refactor me
                 d_ptr->m_presenter->createChartTitleItem();
                 d_ptr->m_presenter->m_titleItem->setText(title);
                 d_ptr->m_presenter->updateLayout();
             }
             /*!
              Returns the chart title. The description text that is drawn above the chart.
              */
             QString QChart::title() const
             {
                 //TODO: refactor me
                 if (d_ptr->m_presenter->m_titleItem)
                     return d_ptr->m_presenter->m_titleItem->text();
                 else
                     return QString();
             }
             /*!
              Sets the \a font that is used for drawing the chart description text that is rendered above the chart.
              */
             void QChart::setTitleFont(const QFont& font)
             {
                 //TODO: refactor me
                 d_ptr->m_presenter->createChartTitleItem();
                 d_ptr->m_presenter->m_titleItem->setFont(font);
                 d_ptr->m_presenter->updateLayout();
             }
             /*!
                 Gets the font that is used for drawing the chart description text that is rendered above the chart.
              */
             QFont QChart::titleFont() const
             {
                 if (d_ptr->m_presenter->m_titleItem)
                     return d_ptr->m_presenter->m_titleItem->font();
                 else
                     return QFont();
             }
             /*!
              Sets the \a brush used for rendering the title text.
              */
             void QChart::setTitleBrush(const QBrush &brush)
             {
                 //TODO: refactor me
                 d_ptr->m_presenter->createChartTitleItem();
                 d_ptr->m_presenter->m_titleItem->setBrush(brush);
                 d_ptr->m_presenter->updateLayout();
             }
             /*!
              Returns the brush used for rendering the title text.
              */
             QBrush QChart::titleBrush() const
             {
                 //TODO: refactor me
                 if (!d_ptr->m_presenter->m_titleItem) return QBrush();
                 return d_ptr->m_presenter->m_titleItem->brush();
             }
             /*!
              Sets the \a theme used by the chart for rendering the graphical representation of the data.
              Note: changing the theme will overwrite all customizations (pen, brush, font, ect.) done to the series.
              \sa theme()
              */
             void QChart::setTheme(QChart::ChartTheme theme)
             {
                 d_ptr->m_presenter->setTheme(theme);
             }
             /*!
              Returns the theme enum used by the chart.
              \sa ChartTheme, setTheme()
              */
             QChart::ChartTheme QChart::theme() const
             {
                 return d_ptr->m_presenter->theme();
             }
             /*!
              Zooms in the view by a factor of 2
              */
             void QChart::zoomIn()
             {
                 d_ptr->m_presenter->zoomIn(2.0);
             }
             /*!
              Zooms in the view to a maximum level at which \a rect is still fully visible.
              */
             void QChart::zoomIn(const QRectF& rect)
             {
                 if (!rect.isValid()) return;
                 d_ptr->m_presenter->zoomIn(rect);
             }
             /*!
              Restores the view zoom level to the previous one.
              */
             void QChart::zoomOut()
             {
                 d_ptr->m_presenter->zoomOut(2.0);
             }
             /*!
              Zooms in the view by a \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 (qFuzzyIsNull(factor))
                     return;
                 if (qFuzzyCompare(factor, 1.0))
                     return;
                 if (factor < 0)
                     return;
                 if (factor > 1.0)
                     d_ptr->m_presenter->zoomIn(factor);
                 else
                     d_ptr->m_presenter->zoomOut(1.0 / factor);
             }
             /*!
              Returns the pointer to the x axis object of the chart
              */
             QAxis* QChart::axisX() const
             {
                 return d_ptr->m_dataset->axisX();
             }
             /*!
              Returns the pointer to the y axis object of the \a series
              If no \a series is provided then default Y axis of the chart is returned.
              */
             QAxis* QChart::axisY(QAbstractSeries *series) const
             {
                 return d_ptr->m_dataset->axisY(series);
             }
             /*!
              Returns the legend object of the chart. Ownership stays in chart.
              */
             QLegend* QChart::legend() const
             {
                 return d_ptr->m_legend;
             }
             /*!
                 Returns the rect that contains information about margins (distance between chart widget edge and axes).
                 Individual margins can be obtained by calling left, top, right, bottom on the returned rect.
              */
             QRectF QChart::margins() const
             {
                 return d_ptr->m_presenter->margins();
             }
             /*!
              Resizes and updates the chart area using the \a event data
              */
             void QChart::resizeEvent(QGraphicsSceneResizeEvent *event)
             {
                 d_ptr->m_rect = QRectF(QPoint(0,0),event->newSize());
                 QGraphicsWidget::resizeEvent(event);
                 d_ptr->m_presenter->setGeometry(d_ptr->m_rect);
             }
             /*!
              Sets animation \a options for the chart
              */
             void QChart::setAnimationOptions(AnimationOptions options)
             {
                 d_ptr->m_presenter->setAnimationOptions(options);
             }
             /*!
              Returns animation options for the chart
              */
             QChart::AnimationOptions QChart::animationOptions() const
             {
                 return d_ptr->m_presenter->animationOptions();
             }
             /*!
                 Scrolls the visible area of the chart to the left by the distance between two x axis ticks
              */
             void QChart::scrollLeft()
             {
                 d_ptr->m_presenter->scroll(-d_ptr->m_presenter->chartGeometry().width()/(axisX()->ticksCount()-1),0);
             }
             /*!
                 Scrolls the visible area of the chart to the right by the distance between two x axis ticks
              */
             void QChart::scrollRight()
             {
                 d_ptr->m_presenter->scroll(d_ptr->m_presenter->chartGeometry().width()/(axisX()->ticksCount()-1),0);
             }
             /*!
                 Scrolls the visible area of the chart up by the distance between two y axis ticks
              */
             void QChart::scrollUp()
             {
                 d_ptr->m_presenter->scroll(0,d_ptr->m_presenter->chartGeometry().width()/(axisY()->ticksCount()-1));
             }
             /*!
                 Scrolls the visible area of the chart down by the distance between two y axis ticks
              */
             void QChart::scrollDown()
             {
                 d_ptr->m_presenter->scroll(0,-d_ptr->m_presenter->chartGeometry().width()/(axisY()->ticksCount()-1));
             }
             /*!
                 Scrolls the visible area of the chart by the distance defined in the \a delta.
              */
             void QChart::scroll(const QPointF &delta)
             {
                 d_ptr->m_presenter->scroll(-delta.x(), delta.y());
             }
             /*!
                 Sets the chart background visibility state to \a visible
              */
             void QChart::setBackgroundVisible(bool visible)
             {
                 //TODO: refactor me
                 d_ptr->m_presenter->createChartBackgroundItem();
                 d_ptr->m_presenter->m_backgroundItem->setVisible(visible);
             }
             /*!
                 Returns the chart's background visibility state
              */
             bool QChart::isBackgroundVisible() const
             {
                 //TODO: refactor me
                 if (!d_ptr->m_presenter->m_backgroundItem)
                     return false;
                 return d_ptr->m_presenter->m_backgroundItem->isVisible();
             }
             /*!
                 Sets the background drop shadow effect state to \a enabled.
             */
             void QChart::setDropShadowEnabled(bool enabled)
             {
                 d_ptr->m_presenter->createChartBackgroundItem();
                 d_ptr->m_presenter->m_backgroundItem->setDropShadowEnabled(enabled);
             }
             /*!
                 Returns true if the drop shadow effect is enabled for the chart background.
             */
             bool QChart::isDropShadowEnabled() const
             {
                 if (!d_ptr->m_presenter->m_backgroundItem)
                     return false;
                 return d_ptr->m_presenter->m_backgroundItem->isDropShadowEnabled();
             }
             /*!
               Returns all the series that are added to the chart.
               \sa addSeries(), removeSeries(), removeAllSeries()
             */
             QList<QAbstractSeries*> QChart::series() const
             {
                 return d_ptr->m_dataset->series();
             }
             //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
             QChartPrivate::QChartPrivate():
                 m_legend(0),
                 m_dataset(0),
                 m_presenter(0)
             {
             }
             QChartPrivate::~QChartPrivate()
             {
             }
             void QChartPrivate::createConnections()
             {
                 QObject::connect(m_dataset,SIGNAL(seriesAdded(QAbstractSeries*,Domain*)),m_presenter,SLOT(handleSeriesAdded(QAbstractSeries*,Domain*)));
                 QObject::connect(m_dataset,SIGNAL(seriesRemoved(QAbstractSeries*)),m_presenter,SLOT(handleSeriesRemoved(QAbstractSeries*)));
                 QObject::connect(m_dataset,SIGNAL(axisAdded(QAxis*,Domain*)),m_presenter,SLOT(handleAxisAdded(QAxis*,Domain*)));
                 QObject::connect(m_dataset,SIGNAL(axisRemoved(QAxis*)),m_presenter,SLOT(handleAxisRemoved(QAxis*)));
             }
             #include "moc_qchart.cpp"
             QTCOMMERCIALCHART_END_NAMESPACE

src/qchart.h +9 0

             /****************************************************************************
             **
             ** Copyright (C) 2012 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 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
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #ifndef QCHART_H
             #define QCHART_H
             #include <QAbstractSeries>
             #include <QLegend>
             #include <QGraphicsWidget>
             class QGraphicsSceneResizeEvent;
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             class QAbstractSeries;
             class QAxis;
             class QLegend;
             struct QChartPrivate;
             class QTCOMMERCIALCHART_EXPORT QChart : public QGraphicsWidget
             {
                 Q_OBJECT
+                Q_PROPERTY(QChart::ChartTheme theme READ theme WRITE setTheme)
+                Q_PROPERTY(QString title READ title WRITE setTitle)
+                Q_PROPERTY(bool backgroundVisible READ isBackgroundVisible WRITE setBackgroundVisible)
+                Q_PROPERTY(bool dropShadowEnabled READ isDropShadowEnabled WRITE setDropShadowEnabled)
+                Q_PROPERTY(QChart::AnimationOptions animationOptions READ animationOptions WRITE setAnimationOptions)
+                Q_PROPERTY(QRectF margins READ margins NOTIFY marginsChanged)
                 Q_ENUMS(ChartTheme)
                 Q_ENUMS(AnimationOption)
             public:
                 enum ChartTheme {
                     ChartThemeLight = 0,
                     ChartThemeBlueCerulean,
                     ChartThemeDark,
                     ChartThemeBrownSand,
                     ChartThemeBlueNcs,
                     ChartThemeHighContrast,
                     ChartThemeBlueIcy
                 };
                 enum AnimationOption {
                     NoAnimation = 0x0,
                     GridAxisAnimations = 0x1,
                     SeriesAnimations =0x2,
                     AllAnimations = 0x3
                 };
                 Q_DECLARE_FLAGS(AnimationOptions, AnimationOption)
             public:
                 explicit QChart(QGraphicsItem *parent = 0, Qt::WindowFlags wFlags = 0);
                 ~QChart();
                 void addSeries(QAbstractSeries *series, QAxis *axisY = 0);
                 void removeSeries(QAbstractSeries *series);
                 void removeAllSeries();
                 QList<QAbstractSeries*> series() const;
                 void setTheme(QChart::ChartTheme theme);
                 QChart::ChartTheme theme() const;
                 void setTitle(const QString& title);
                 QString title() const;
                 void setTitleFont(const QFont& font);
                 QFont titleFont() const;
                 void setTitleBrush(const QBrush &brush);
                 QBrush titleBrush() const;
                 void setBackgroundBrush(const QBrush &brush);
                 QBrush backgroundBrush() const;
                 void setBackgroundPen(const QPen &pen);
                 QPen backgroundPen() const;
                 void setBackgroundVisible(bool visible = true);
                 bool isBackgroundVisible() const;
                 void setDropShadowEnabled(bool enabled = true);
                 bool isDropShadowEnabled() const;
                 void setAnimationOptions(AnimationOptions options);
                 AnimationOptions animationOptions() const;
                 void zoomIn();
                 void zoomIn(const QRectF &rect);
                 void zoomOut();
                 void zoom(qreal factor);
                 void scrollLeft();
                 void scrollRight();
                 void scrollUp();
                 void scrollDown();
                 void scroll(const QPointF &delta);
                 QAxis* axisX() const;
                 QAxis* axisY(QAbstractSeries* series = 0) const;
                 QLegend* legend() const;
                 QRectF margins() const;
+            Q_SIGNALS:
+                void marginsChanged(QRectF newMargins);
             protected:
                 void resizeEvent(QGraphicsSceneResizeEvent *event);
             protected:
                 QScopedPointer<QChartPrivate> d_ptr;
                 friend class QLegend;
                 friend class ChartPresenter;
                 Q_DISABLE_COPY(QChart)
             };
             QTCOMMERCIALCHART_END_NAMESPACE
             Q_DECLARE_OPERATORS_FOR_FLAGS(QTCOMMERCIALCHART_NAMESPACE::QChart::AnimationOptions)
             #endif

tests/qmlchartproperties/qml/qmlchartproperties/Chart.qml +35 -2

             /****************************************************************************
             **
             ** Copyright (C) 2012 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 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
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             import QtQuick 1.0
             import QtCommercial.Chart 1.0
             ChartView {
                 id: chartView
                 title: "chart"
                 anchors.fill: parent
                 property variant series: chartView
                 LineSeries {
                     name: "line"
                     XyPoint { x: 0; y: 0 }
                     XyPoint { x: 1.1; y: 2.1 }
                     XyPoint { x: 1.9; y: 3.3 }
                     XyPoint { x: 2.1; y: 2.1 }
                     XyPoint { x: 2.9; y: 4.9 }
                     XyPoint { x: 3.4; y: 3.0 }
                     XyPoint { x: 4.1; y: 3.3 }
                 }
-                onVisibleChanged:                  console.log("chart.onVisibleChanged: " + series.visible);
+                onVisibleChanged:                  console.log("chart.onVisibleChanged: " + visible);
-                onTitleColorChanged:               console.log("chart.onTitleColorChanged: " + series.titleColor);
+                onTitleColorChanged:               console.log("chart.onTitleColorChanged: " + color);
                 onBackgroundColorChanged:          console.log("chart.onBackgroundColorChanged: " + series.backgroundColor);
                 onDropShadowEnabledChanged:        console.log("chart.onDropShadowEnabledChanged: " + enabled);
+                onTopMarginChanged: {
+                    console.log("chart.onTopMarginChanged: " + margin);
+                    marginVisualizer.opacity = 1.0;
+                }
+                onBottomMarginChanged: {
+                    console.log("chart.onBottomMarginChanged: " + margin);
+                    marginVisualizer.opacity = 1.0;
+                }
+                onLeftMarginChanged: {
+                    console.log("chart.onLeftMarginChanged: " + margin);
+                    marginVisualizer.opacity = 1.0;
+                }
+                onRightMarginChanged: {
+                    console.log("chart.onRightMarginChanged: " + margin);
+                    marginVisualizer.opacity = 1.0;
+                }
                 legend.onVisibleChanged:           console.log("legend.onVisibleChanged: " + series.legend.visible);
                 legend.onBackgroundVisibleChanged: console.log("legend.onBackgroundVisibleChanged: " + visible);
                 legend.onColorChanged:             console.log("legend.onColorChanged: " + color);
                 legend.onBorderColorChanged:       console.log("legend.onBorderColorChanged: " + color);
                 axisX.onColorChanged:               console.log("axisX.onColorChanged: " + color);
                 axisX.onLabelsVisibleChanged:       console.log("axisX.onLabelsVisibleChanged: " + visible);
                 axisX.onLabelsColorChanged:         console.log("axisX.onLabelsColorChanged: " + color);
                 axisX.onVisibleChanged:             console.log("axisX.onVisibleChanged: " + visible);
                 axisX.onGridVisibleChanged:         console.log("axisX.onGridVisibleChanged: " + visible);
                 axisX.onShadesVisibleChanged:       console.log("axisX.onShadesVisibleChanged: " + visible);
                 axisX.onShadesColorChanged:         console.log("axisX.onShadesColorChanged: " + color);
                 axisX.onShadesBorderColorChanged:   console.log("axisX.onShadesBorderColorChanged: " + color);
                 axisX.onMinChanged:                 console.log("axisX.onMinChanged: " + min);
                 axisX.onMaxChanged:                 console.log("axisX.onMaxChanged: " + max);
                 axisY.onColorChanged:               console.log("axisY.onColorChanged: " + color);
                 axisY.onLabelsVisibleChanged:       console.log("axisY.onLabelsVisibleChanged: " + visible);
                 axisY.onLabelsColorChanged:         console.log("axisY.onLabelsColorChanged: " + color);
                 axisY.onVisibleChanged:             console.log("axisY.onVisibleChanged: " + visible);
                 axisY.onGridVisibleChanged:         console.log("axisY.onGridVisibleChanged: " + visible);
                 axisY.onShadesVisibleChanged:       console.log("axisY.onShadesVisibleChanged: " + visible);
                 axisY.onShadesColorChanged:         console.log("axisY.onShadesColorChanged: " + color);
                 axisY.onShadesBorderColorChanged:   console.log("axisY.onShadesBorderColorChanged: " + color);
                 axisY.onMinChanged:                 console.log("axisY.onMinChanged: " + min);
                 axisY.onMaxChanged:                 console.log("axisY.onMaxChanged: " + max);
+                Rectangle {
+                    id: marginVisualizer
+                    color: "transparent"
+                    border.color: "red"
+                    anchors.fill: parent
+                    anchors.topMargin: parent.topMargin
+                    anchors.bottomMargin: parent.bottomMargin
+                    anchors.leftMargin: parent.leftMargin
+                    anchors.rightMargin: parent.rightMargin
+                    opacity: 0.0
+                    onOpacityChanged: if (opacity == 1.0) opacity = 0.0;
+                    Behavior on opacity {
+                        NumberAnimation { duration: 800 }
+                    }
+                }
             }

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