diff options
author | Titta Heikkala <titta.heikkala@digia.com> | 2014-07-01 07:10:00 +0300 |
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committer | Titta Heikkala <titta.heikkala@theqtcompany.com> | 2014-10-14 13:04:52 +0300 |
commit | c544258484ff4fd5d2b88402fbaa5d154b89a3a2 (patch) | |
tree | 7659625abb566dec55d3783ed820b928542d9b2b /examples/charts/donutbreakdown/donutbreakdownchart.cpp | |
parent | 76339f714f088645e911cee65bdb66055fe029aa (diff) |
Qt Charts project file structure change
Charts repository structure is changed to follow the structure of a
Qt Add-On module. The task includes following changes:
- All macros and definitions named 'commercial' have been renamed.
- Compile errors related to QString and qSort usage have been fixed.
- Old demos are moved under examples. The QML examples now support only
Qt Quick 2.0, the support for Qt Quick 1 is removed.
- The QML examples with multiple views are updated so that they are
usable also with touch devices.
- Unnecessary version checks are removed from examples.
- The build stamp has been removed as it was only meant for Charts
development purposes and it's no longer needed. Also development
build related debug prints are removed as __DATE__ can't be used
for all OS thus it doesn't make much sense.
- Documentation structure has been updated based on the new module
structure. The raw HTML files have been removed. Demos are
combined to examples.
- Unnecessary .qdocinc files are no longer needed. The content is
moved to the corresponding .cpp files.
- The Charts widget designer plugin is updated according to the module
change.
- The test cases updated according to the project structure change.
Tests are added also for version 2.0.
- cmake modules generation is not needed with Qt 5.4 and Qt Charts
so it's disabled.
- The new module name and version are updated to the plugin.qmltypes
file.
Task-number: QTRD-2844, QTRD-3217, QTRD-3218, QTRD-3277, QTRD-3228,
QTRD-2526, QTRD-3233, QTRD-3222
Change-Id: Ib7fb26057cde710ffaf6bc780c8bf52a16f45160
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>
Diffstat (limited to 'examples/charts/donutbreakdown/donutbreakdownchart.cpp')
-rw-r--r-- | examples/charts/donutbreakdown/donutbreakdownchart.cpp | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/examples/charts/donutbreakdown/donutbreakdownchart.cpp b/examples/charts/donutbreakdown/donutbreakdownchart.cpp new file mode 100644 index 00000000..5272f105 --- /dev/null +++ b/examples/charts/donutbreakdown/donutbreakdownchart.cpp @@ -0,0 +1,110 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the Qt Enterprise Charts Add-on. +** +** $QT_BEGIN_LICENSE$ +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include "donutbreakdownchart.h" +#include "mainslice.h" +#include <QPieSlice> +#include <QPieLegendMarker> + +QT_CHARTS_USE_NAMESPACE + +//![1] +DonutBreakdownChart::DonutBreakdownChart(QGraphicsItem *parent, Qt::WindowFlags wFlags) + : QChart(QChart::ChartTypeCartesian, parent, wFlags) +{ + // create the series for main center pie + m_mainSeries = new QPieSeries(); + m_mainSeries->setPieSize(0.7); + QChart::addSeries(m_mainSeries); +} +//![1] + +//![2] +void DonutBreakdownChart::addBreakdownSeries(QPieSeries *breakdownSeries, QColor color) +{ + QFont font("Arial", 8); + + // add breakdown series as a slice to center pie + MainSlice *mainSlice = new MainSlice(breakdownSeries); + mainSlice->setName(breakdownSeries->name()); + mainSlice->setValue(breakdownSeries->sum()); + m_mainSeries->append(mainSlice); + + // customize the slice + mainSlice->setBrush(color); + mainSlice->setLabelVisible(); + mainSlice->setLabelColor(Qt::white); + mainSlice->setLabelPosition(QPieSlice::LabelInsideHorizontal); + mainSlice->setLabelFont(font); + + // position and customize the breakdown series + breakdownSeries->setPieSize(0.8); + breakdownSeries->setHoleSize(0.7); + breakdownSeries->setLabelsVisible(); + foreach (QPieSlice *slice, breakdownSeries->slices()) { + color = color.lighter(115); + slice->setBrush(color); + slice->setLabelFont(font); + } + + // add the series to the chart + QChart::addSeries(breakdownSeries); + + // recalculate breakdown donut segments + recalculateAngles(); + + // update customize legend markers + updateLegendMarkers(); +} +//![2] + +//![3] +void DonutBreakdownChart::recalculateAngles() +{ + qreal angle = 0; + foreach (QPieSlice *slice, m_mainSeries->slices()) { + QPieSeries *breakdownSeries = qobject_cast<MainSlice *>(slice)->breakdownSeries(); + breakdownSeries->setPieStartAngle(angle); + angle += slice->percentage() * 360.0; // full pie is 360.0 + breakdownSeries->setPieEndAngle(angle); + } +} +//![3] + +//![4] +void DonutBreakdownChart::updateLegendMarkers() +{ + // go through all markers + foreach (QAbstractSeries *series, QChart::series()) { + foreach (QLegendMarker *marker, legend()->markers(series)) { + QPieLegendMarker *pieMarker = qobject_cast<QPieLegendMarker *>(marker); + if (series == m_mainSeries) { + // hide markers from main series + pieMarker->setVisible(false); + } else { + // modify markers from breakdown series + pieMarker->setLabel(QString("%1 %2%") + .arg(pieMarker->slice()->label()) + .arg(pieMarker->slice()->percentage() * 100, 0, 'f', 2)); + pieMarker->setFont(QFont("Arial", 8)); + } + } + } +} +//![4] |