diff options
Diffstat (limited to 'examples/widget/graphmodifier.cpp')
| -rw-r--r-- | examples/widget/graphmodifier.cpp | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/examples/widget/graphmodifier.cpp b/examples/widget/graphmodifier.cpp index c5b8be4a..0b33bde0 100644 --- a/examples/widget/graphmodifier.cpp +++ b/examples/widget/graphmodifier.cpp @@ -28,27 +28,36 @@ QT_DATAVISUALIZATION_USE_NAMESPACE const QString celsiusString = QString(QChar(0xB0)) + "C"; +//! [0] GraphModifier::GraphModifier(Q3DBars *bargraph) : m_graph(bargraph), m_xRotation(0.0), m_yRotation(0.0), - m_fontSize(20), + m_fontSize(30), m_segments(4), m_subSegments(3), - m_minval(-20.0), // TODO Bargraph Y-axis currently only properly supports zero-centered ranges + m_minval(-20.0), m_maxval(20.0), + //! [1] m_temperatureAxis(new Q3DValueAxis), m_yearAxis(new Q3DCategoryAxis), m_monthAxis(new Q3DCategoryAxis), m_temperatureData(new QBarDataProxy), + //! [1] m_style(QDataVis::MeshStyleBevelBars), m_smooth(false) { + //! [2] + m_graph->setBackgroundVisible(false); + m_graph->setShadowQuality(QDataVis::ShadowQualitySoftMedium); + m_graph->setFont(QFont("Times New Roman", m_fontSize)); + m_graph->setLabelStyle(QDataVis::LabelStyleFromTheme); + //! [2] + m_months << "January" << "February" << "March" << "April" << "May" << "June" << "July" << "August" << "September" << "October" << "November" << "December"; m_years << "2006" << "2007" << "2008" << "2009" << "2010" << "2011" << "2012"; - m_graph->setBackgroundVisible(false); - + //! [3] m_temperatureAxis->setTitle("Average temperature"); m_temperatureAxis->setSegmentCount(m_segments); m_temperatureAxis->setSubSegmentCount(m_subSegments); @@ -56,26 +65,22 @@ GraphModifier::GraphModifier(Q3DBars *bargraph) m_temperatureAxis->setLabelFormat(QString(QStringLiteral("%d ") + celsiusString)); m_yearAxis->setTitle("Year"); - m_monthAxis->setTitle("Month"); m_graph->addAxis(m_temperatureAxis); m_graph->addAxis(m_yearAxis); m_graph->addAxis(m_monthAxis); - - m_graph->setShadowQuality(QDataVis::ShadowQualitySoftMedium); + //! [3] m_temperatureData->setItemLabelFormat(QStringLiteral("@valueTitle for @colLabel @rowLabel: @valueLabel")); + //! [4] m_graph->addDataProxy(m_temperatureData); - - m_graph->setFont(QFont("Times Roman", 20)); - - m_graph->setSelectionMode(QDataVis::SelectionModeItem); + //! [4] resetTemperatureData(); - changeLabelStyle(); } +//! [0] GraphModifier::~GraphModifier() { @@ -84,17 +89,18 @@ GraphModifier::~GraphModifier() void GraphModifier::start() { + //! [6] m_graph->setActiveDataProxy(m_temperatureData); - m_graph->setTitle(QStringLiteral("Average temperatures in Oulu, Finland (2006-2012)")); - m_graph->setValueAxis(m_temperatureAxis); m_graph->setRowAxis(m_yearAxis); m_graph->setColumnAxis(m_monthAxis); + //! [6] } void GraphModifier::resetTemperatureData() { + //! [5] // Set up data static const qreal temp[7][12] = { {-6.7, -11.7, -9.7, 3.3, 9.2, 14.0, 16.3, 17.8, 10.2, 2.1, -2.6, -0.3}, // 2006 @@ -106,24 +112,25 @@ void GraphModifier::resetTemperatureData() {-8.7, -11.3, -2.3, 0.4, 7.5, 12.2, 16.4, 14.1, 9.2, 3.1, 0.3, -12.1} // 2012 }; - // Create data rows + // Create data array QBarDataArray *dataSet = new QBarDataArray; QBarDataRow *dataRow; dataSet->reserve(m_years.size()); for (int year = 0; year < m_years.size(); year++) { + // Create a data row dataRow = new QBarDataRow(m_months.size()); - // Create data items for (int month = 0; month < m_months.size(); month++) { - // Add data to rows + // Add data to the row (*dataRow)[month].setValue(temp[year][month]); } - // Add row to set + // Add the row to the set dataSet->append(dataRow); } - // Add data to the graph (the graph assumes ownership) + // Add data to the graph (the graph assumes ownership of it) m_temperatureData->resetArray(dataSet, m_years, m_months); + //! [5] } void GraphModifier::changeStyle(int style) @@ -191,6 +198,7 @@ void GraphModifier::changeShadowQuality(int quality) emit shadowQualityChanged(quality); } +//! [7] void GraphModifier::rotateX(int rotation) { m_xRotation = rotation; @@ -202,6 +210,7 @@ void GraphModifier::rotateY(int rotation) m_yRotation = rotation; m_graph->scene()->activeCamera()->setCameraPosition(m_xRotation, m_yRotation); } +//! [7] void GraphModifier::setBackgroundEnabled(int enabled) { |