diff options
Diffstat (limited to 'examples/legendmarkers/mainwidget.cpp')
| -rw-r--r-- | examples/legendmarkers/mainwidget.cpp | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/examples/legendmarkers/mainwidget.cpp b/examples/legendmarkers/mainwidget.cpp deleted file mode 100644 index 2a20f882..00000000 --- a/examples/legendmarkers/mainwidget.cpp +++ /dev/null @@ -1,177 +0,0 @@ -/**************************************************************************** -** -** 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 "mainwidget.h" -#include <QChart> -#include <QChartView> -#include <QPushButton> -#include <QLabel> -#include <QDebug> -#include <QLegend> -#include <QFormLayout> -#include <QLegendMarker> -#include <QLineSeries> -#include <QXYLegendMarker> -#include <qmath.h> - -QTCOMMERCIALCHART_USE_NAMESPACE - -MainWidget::MainWidget(QWidget *parent) : - QWidget(parent) -{ - // Create chart view with the chart - m_chart = new QChart(); - m_chartView = new QChartView(m_chart, this); - - // Create layout for grid and detached legend - m_mainLayout = new QGridLayout(); - m_mainLayout->addWidget(m_chartView, 0, 1, 3, 1); - setLayout(m_mainLayout); - - // Add few series - addSeries(); - addSeries(); - addSeries(); - addSeries(); - - connectMarkers(); - - // Set the title and show legend - m_chart->setTitle("Legendmarker example (click on legend)"); - m_chart->legend()->setVisible(true); - m_chart->legend()->setAlignment(Qt::AlignBottom); - - m_chartView->setRenderHint(QPainter::Antialiasing); -} - -void MainWidget::addSeries() -{ - QLineSeries *series = new QLineSeries(); - m_series.append(series); - - series->setName(QString("line " + QString::number(m_series.count()))); - - // Make some sine wave for data - QList<QPointF> data; - int offset = m_chart->series().count(); - for (int i = 0; i < 360; i++) { - qreal x = offset * 20 + i; - data.append(QPointF(i, qSin(2.0 * 3.141592 * x / 360.0))); - } - - series->append(data); - m_chart->addSeries(series); - - if (m_series.count() == 1) { - m_chart->createDefaultAxes(); - } -} - -void MainWidget::removeSeries() -{ - // Remove last series from chart - if (m_series.count() > 0) { - QLineSeries *series = m_series.last(); - m_chart->removeSeries(series); - m_series.removeLast(); - delete series; - } -} - -void MainWidget::connectMarkers() -{ -//![1] - // Connect all markers to handler - foreach (QLegendMarker* marker, m_chart->legend()->markers()) { - // Disconnect possible existing connection to avoid multiple connections - QObject::disconnect(marker, SIGNAL(clicked()), this, SLOT(handleMarkerClicked())); - QObject::connect(marker, SIGNAL(clicked()), this, SLOT(handleMarkerClicked())); - } -//![1] -} - -void MainWidget::disconnectMarkers() -{ -//![2] - foreach (QLegendMarker* marker, m_chart->legend()->markers()) { - QObject::disconnect(marker, SIGNAL(clicked()), this, SLOT(handleMarkerClicked())); - } -//![2] -} - -void MainWidget::handleMarkerClicked() -{ -//![3] - QLegendMarker* marker = qobject_cast<QLegendMarker*> (sender()); - Q_ASSERT(marker); -//![3] - -//![4] - switch (marker->type()) -//![4] - { - case QLegendMarker::LegendMarkerTypeXY: - { -//![5] - // Toggle visibility of series - marker->series()->setVisible(!marker->series()->isVisible()); - - // Turn legend marker back to visible, since hiding series also hides the marker - // and we don't want it to happen now. - marker->setVisible(true); -//![5] - -//![6] - // Dim the marker, if series is not visible - qreal alpha = 1.0; - - if (!marker->series()->isVisible()) { - alpha = 0.5; - } - - QColor color; - QBrush brush = marker->labelBrush(); - color = brush.color(); - color.setAlphaF(alpha); - brush.setColor(color); - marker->setLabelBrush(brush); - - brush = marker->brush(); - color = brush.color(); - color.setAlphaF(alpha); - brush.setColor(color); - marker->setBrush(brush); - - QPen pen = marker->pen(); - color = pen.color(); - color.setAlphaF(alpha); - pen.setColor(color); - marker->setPen(pen); - -//![6] - break; - } - default: - { - qDebug() << "Unknown marker type"; - break; - } - } -} |