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authorTitta Heikkala <titta.heikkala@digia.com>2014-07-01 07:10:00 +0300
committerTitta Heikkala <titta.heikkala@theqtcompany.com>2014-10-14 13:04:52 +0300
commitc544258484ff4fd5d2b88402fbaa5d154b89a3a2 (patch)
tree7659625abb566dec55d3783ed820b928542d9b2b /examples/charts/donutbreakdown/donutbreakdownchart.cpp
parent76339f714f088645e911cee65bdb66055fe029aa (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.cpp110
1 files changed, 110 insertions, 0 deletions
diff --git a/examples/charts/donutbreakdown/donutbreakdownchart.cpp b/examples/charts/donutbreakdown/donutbreakdownchart.cpp
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+++ b/examples/charts/donutbreakdown/donutbreakdownchart.cpp
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+/****************************************************************************
+**
+** 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]