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Diffstat (limited to 'examples/widget/graphmodifier.cpp')
| -rw-r--r-- | examples/widget/graphmodifier.cpp | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/examples/widget/graphmodifier.cpp b/examples/widget/graphmodifier.cpp new file mode 100644 index 00000000..7da3000b --- /dev/null +++ b/examples/widget/graphmodifier.cpp @@ -0,0 +1,218 @@ +/**************************************************************************** +** +** Copyright (C) 2013 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 QtDataVisualization module. +** +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** +****************************************************************************/ + +#include "graphmodifier.h" +#include <QtDataVisualization/q3dcategoryaxis.h> +#include <QtDataVisualization/q3dvalueaxis.h> +#include <QtDataVisualization/qbardataproxy.h> +#include <QTime> + +QT_DATAVISUALIZATION_USE_NAMESPACE + +const QString celsiusString = QString(QChar(0xB0)) + "C"; + +GraphModifier::GraphModifier(Q3DBars *bargraph) + : m_graph(bargraph), + m_xRotation(0.0), + m_yRotation(0.0), + m_fontSize(20), + m_segments(4), + m_subSegments(3), + m_minval(-20.0), // TODO Bargraph Y-axis currently only properly supports zero-centered ranges + m_maxval(20.0), + m_temperatureAxis(new Q3DValueAxis), + m_yearAxis(new Q3DCategoryAxis), + m_monthAxis(new Q3DCategoryAxis), + m_temperatureData(new QBarDataProxy), + m_style(QDataVis::MeshStyleBevelBars), + m_smooth(false) +{ + 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); + + m_temperatureAxis->setTitle("Average temperature"); + m_temperatureAxis->setSegmentCount(m_segments); + m_temperatureAxis->setSubSegmentCount(m_subSegments); + m_temperatureAxis->setRange(m_minval, m_maxval); + 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); + + m_temperatureData->setItemLabelFormat(QStringLiteral("@valueTitle for @colLabel @rowLabel: @valueLabel")); + + m_graph->addDataProxy(m_temperatureData); + + m_graph->setFont(QFont("Times Roman", 20)); + + m_graph->setSelectionMode(QDataVis::SelectionModeItem); + + resetTemperatureData(); + changeLabelStyle(); +} + +GraphModifier::~GraphModifier() +{ + delete m_graph; +} + +void GraphModifier::start() +{ + 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); +} + +void GraphModifier::resetTemperatureData() +{ + // 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 + {-6.8, -13.3, 0.2, 1.5, 7.9, 13.4, 16.1, 15.5, 8.2, 5.4, -2.6, -0.8}, // 2007 + {-4.2, -4.0, -4.6, 1.9, 7.3, 12.5, 15.0, 12.8, 7.6, 5.1, -0.9, -1.3}, // 2008 + {-7.8, -8.8, -4.2, 0.7, 9.3, 13.2, 15.8, 15.5, 11.2, 0.6, 0.7, -8.4}, // 2009 + {-14.4, -12.1, -7.0, 2.3, 11.0, 12.6, 18.8, 13.8, 9.4, 3.9, -5.6, -13.0}, // 2010 + {-9.0, -15.2, -3.8, 2.6, 8.3, 15.9, 18.6, 14.9, 11.1, 5.3, 1.8, -0.2}, // 2011 + {-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 + QBarDataArray *dataSet = new QBarDataArray; + QBarDataRow *dataRow; + + dataSet->reserve(m_years.size()); + for (int year = 0; year < m_years.size(); year++) { + dataRow = new QBarDataRow(m_months.size()); + // Create data items + for (int month = 0; month < m_months.size(); month++) { + // Add data to rows + (*dataRow)[month].setValue(temp[year][month]); + } + // Add row to set + dataSet->append(dataRow); + } + + // Add data to the graph (the graph assumes ownership) + m_temperatureData->resetArray(dataSet, m_years, m_months); +} + +void GraphModifier::changeStyle(int style) +{ + m_style = QDataVis::MeshStyle(style); + m_graph->setBarType(m_style, m_smooth); +} + +void GraphModifier::changePresetCamera() +{ + static int preset = QDataVis::CameraPresetFrontLow; + + m_graph->setCameraPreset((QDataVis::CameraPreset)preset); + + if (++preset > QDataVis::CameraPresetDirectlyBelow) + preset = QDataVis::CameraPresetFrontLow; +} + +void GraphModifier::changeTheme(int theme) +{ + m_graph->setTheme((QDataVis::Theme)theme); +} + +void GraphModifier::changeLabelStyle() +{ + static int style = QDataVis::LabelStyleFromTheme; + + m_graph->setLabelStyle((QDataVis::LabelStyle)style); + + if (++style > QDataVis::LabelStyleTransparent) + style = QDataVis::LabelStyleOpaque; +} + +void GraphModifier::changeSelectionMode(int selectionMode) +{ + m_graph->setSelectionMode((QDataVis::SelectionMode)selectionMode); +} + +void GraphModifier::changeFont(const QFont &font) +{ + QFont newFont = font; + newFont.setPointSize(m_fontSize); + m_graph->setFont(newFont); +} + +void GraphModifier::changeFontSize(int fontsize) +{ + m_fontSize = fontsize; + QFont font = m_graph->font(); + font.setPointSize(m_fontSize); + m_graph->setFont(font); +} + +void GraphModifier::shadowQualityUpdatedByVisual(QDataVis::ShadowQuality sq) +{ + int quality = int(sq); + // Updates the UI component to show correct shadow quality + emit shadowQualityChanged(quality); +} + +void GraphModifier::changeShadowQuality(int quality) +{ + QDataVis::ShadowQuality sq = QDataVis::ShadowQuality(quality); + m_graph->setShadowQuality(sq); + emit shadowQualityChanged(quality); +} + +void GraphModifier::rotateX(int rotation) +{ + m_xRotation = rotation; + m_graph->setCameraPosition(m_xRotation, m_yRotation); +} + +void GraphModifier::rotateY(int rotation) +{ + m_yRotation = rotation; + m_graph->setCameraPosition(m_xRotation, m_yRotation); +} + +void GraphModifier::setBackgroundEnabled(int enabled) +{ + m_graph->setBackgroundVisible((bool)enabled); +} + +void GraphModifier::setGridEnabled(int enabled) +{ + m_graph->setGridVisible((bool)enabled); +} + +void GraphModifier::setSmoothBars(int smooth) +{ + m_smooth = bool(smooth); + m_graph->setBarType(m_style, m_smooth); +} |