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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "mainwidget.h"
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#include "customslice.h"
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#include "pentool.h"
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#include "brushtool.h"
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#include <QtWidgets/QPushButton>
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#include <QtWidgets/QComboBox>
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#include <QtWidgets/QCheckBox>
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#include <QtWidgets/QLineEdit>
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#include <QtWidgets/QGroupBox>
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#include <QtWidgets/QDoubleSpinBox>
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#include <QtWidgets/QFormLayout>
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#include <QtWidgets/QFontDialog>
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#include <QtCharts/QChartView>
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#include <QtCharts/QPieSeries>
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QT_CHARTS_USE_NAMESPACE
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MainWidget::MainWidget(QWidget *parent)
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: QWidget(parent),
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m_slice(0)
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{
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// create chart
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QChart *chart = new QChart;
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chart->setTitle("Piechart customization");
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chart->setAnimationOptions(QChart::AllAnimations);
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// create series
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m_series = new QPieSeries();
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*m_series << new CustomSlice("Slice 1", 10.0);
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*m_series << new CustomSlice("Slice 2", 20.0);
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*m_series << new CustomSlice("Slice 3", 30.0);
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*m_series << new CustomSlice("Slice 4", 40.0);
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*m_series << new CustomSlice("Slice 5", 50.0);
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m_series->setLabelsVisible();
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chart->addSeries(m_series);
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connect(m_series, SIGNAL(clicked(QPieSlice*)), this, SLOT(handleSliceClicked(QPieSlice*)));
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// chart settings
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m_themeComboBox = new QComboBox();
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m_themeComboBox->addItem("Light", QChart::ChartThemeLight);
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m_themeComboBox->addItem("BlueCerulean", QChart::ChartThemeBlueCerulean);
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m_themeComboBox->addItem("Dark", QChart::ChartThemeDark);
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m_themeComboBox->addItem("BrownSand", QChart::ChartThemeBrownSand);
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m_themeComboBox->addItem("BlueNcs", QChart::ChartThemeBlueNcs);
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m_themeComboBox->addItem("High Contrast", QChart::ChartThemeHighContrast);
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m_themeComboBox->addItem("Blue Icy", QChart::ChartThemeBlueIcy);
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m_themeComboBox->addItem("Qt", QChart::ChartThemeQt);
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m_aaCheckBox = new QCheckBox();
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m_animationsCheckBox = new QCheckBox();
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m_animationsCheckBox->setCheckState(Qt::Checked);
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m_legendCheckBox = new QCheckBox();
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QFormLayout *chartSettingsLayout = new QFormLayout();
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chartSettingsLayout->addRow("Theme", m_themeComboBox);
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chartSettingsLayout->addRow("Antialiasing", m_aaCheckBox);
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chartSettingsLayout->addRow("Animations", m_animationsCheckBox);
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chartSettingsLayout->addRow("Legend", m_legendCheckBox);
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QGroupBox *chartSettings = new QGroupBox("Chart");
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chartSettings->setLayout(chartSettingsLayout);
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connect(m_themeComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateChartSettings()));
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connect(m_aaCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateChartSettings()));
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connect(m_animationsCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateChartSettings()));
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connect(m_legendCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateChartSettings()));
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// series settings
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m_hPosition = new QDoubleSpinBox();
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m_hPosition->setMinimum(0.0);
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m_hPosition->setMaximum(1.0);
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m_hPosition->setSingleStep(0.1);
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m_hPosition->setValue(m_series->horizontalPosition());
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m_vPosition = new QDoubleSpinBox();
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m_vPosition->setMinimum(0.0);
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m_vPosition->setMaximum(1.0);
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m_vPosition->setSingleStep(0.1);
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m_vPosition->setValue(m_series->verticalPosition());
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m_sizeFactor = new QDoubleSpinBox();
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m_sizeFactor->setMinimum(0.0);
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m_sizeFactor->setMaximum(1.0);
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m_sizeFactor->setSingleStep(0.1);
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m_sizeFactor->setValue(m_series->pieSize());
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m_startAngle = new QDoubleSpinBox();
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m_startAngle->setMinimum(-720);
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m_startAngle->setMaximum(720);
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m_startAngle->setValue(m_series->pieStartAngle());
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m_startAngle->setSingleStep(1);
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m_endAngle = new QDoubleSpinBox();
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m_endAngle->setMinimum(-720);
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m_endAngle->setMaximum(720);
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m_endAngle->setValue(m_series->pieEndAngle());
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m_endAngle->setSingleStep(1);
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m_holeSize = new QDoubleSpinBox();
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m_holeSize->setMinimum(0.0);
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m_holeSize->setMaximum(1.0);
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m_holeSize->setSingleStep(0.1);
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m_holeSize->setValue(m_series->holeSize());
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QPushButton *appendSlice = new QPushButton("Append slice");
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QPushButton *insertSlice = new QPushButton("Insert slice");
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QPushButton *removeSlice = new QPushButton("Remove selected slice");
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QFormLayout *seriesSettingsLayout = new QFormLayout();
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seriesSettingsLayout->addRow("Horizontal position", m_hPosition);
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seriesSettingsLayout->addRow("Vertical position", m_vPosition);
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seriesSettingsLayout->addRow("Size factor", m_sizeFactor);
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seriesSettingsLayout->addRow("Start angle", m_startAngle);
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seriesSettingsLayout->addRow("End angle", m_endAngle);
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seriesSettingsLayout->addRow("Hole size", m_holeSize);
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seriesSettingsLayout->addRow(appendSlice);
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seriesSettingsLayout->addRow(insertSlice);
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seriesSettingsLayout->addRow(removeSlice);
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QGroupBox *seriesSettings = new QGroupBox("Series");
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seriesSettings->setLayout(seriesSettingsLayout);
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connect(m_vPosition, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(m_hPosition, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(m_sizeFactor, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(m_startAngle, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(m_endAngle, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(m_holeSize, SIGNAL(valueChanged(double)), this, SLOT(updateSerieSettings()));
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connect(appendSlice, SIGNAL(clicked()), this, SLOT(appendSlice()));
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connect(insertSlice, SIGNAL(clicked()), this, SLOT(insertSlice()));
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connect(removeSlice, SIGNAL(clicked()), this, SLOT(removeSlice()));
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// slice settings
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m_sliceName = new QLineEdit("<click a slice>");
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m_sliceName->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
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m_sliceValue = new QDoubleSpinBox();
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m_sliceValue->setMaximum(1000);
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m_sliceLabelVisible = new QCheckBox();
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m_sliceLabelArmFactor = new QDoubleSpinBox();
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m_sliceLabelArmFactor->setSingleStep(0.01);
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m_sliceExploded = new QCheckBox();
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m_sliceExplodedFactor = new QDoubleSpinBox();
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m_sliceExplodedFactor->setSingleStep(0.01);
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m_pen = new QPushButton();
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m_penTool = new PenTool("Slice pen", this);
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m_brush = new QPushButton();
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m_brushTool = new BrushTool("Slice brush", this);
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m_font = new QPushButton();
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m_labelBrush = new QPushButton();
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m_labelBrushTool = new BrushTool("Label brush", this);
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m_labelPosition = new QComboBox(this);
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m_labelPosition->addItem("Outside", QPieSlice::LabelOutside);
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m_labelPosition->addItem("Inside horizontal", QPieSlice::LabelInsideHorizontal);
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m_labelPosition->addItem("Inside tangential", QPieSlice::LabelInsideTangential);
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m_labelPosition->addItem("Inside normal", QPieSlice::LabelInsideNormal);
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QFormLayout *sliceSettingsLayout = new QFormLayout();
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sliceSettingsLayout->addRow("Label", m_sliceName);
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sliceSettingsLayout->addRow("Value", m_sliceValue);
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sliceSettingsLayout->addRow("Pen", m_pen);
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sliceSettingsLayout->addRow("Brush", m_brush);
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sliceSettingsLayout->addRow("Label visible", m_sliceLabelVisible);
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sliceSettingsLayout->addRow("Label font", m_font);
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sliceSettingsLayout->addRow("Label brush", m_labelBrush);
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sliceSettingsLayout->addRow("Label position", m_labelPosition);
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sliceSettingsLayout->addRow("Label arm length", m_sliceLabelArmFactor);
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sliceSettingsLayout->addRow("Exploded", m_sliceExploded);
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sliceSettingsLayout->addRow("Explode distance", m_sliceExplodedFactor);
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QGroupBox *sliceSettings = new QGroupBox("Selected slice");
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sliceSettings->setLayout(sliceSettingsLayout);
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connect(m_sliceName, SIGNAL(textChanged(QString)), this, SLOT(updateSliceSettings()));
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connect(m_sliceValue, SIGNAL(valueChanged(double)), this, SLOT(updateSliceSettings()));
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connect(m_pen, SIGNAL(clicked()), m_penTool, SLOT(show()));
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connect(m_penTool, SIGNAL(changed()), this, SLOT(updateSliceSettings()));
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connect(m_brush, SIGNAL(clicked()), m_brushTool, SLOT(show()));
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connect(m_brushTool, SIGNAL(changed()), this, SLOT(updateSliceSettings()));
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connect(m_font, SIGNAL(clicked()), this, SLOT(showFontDialog()));
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connect(m_labelBrush, SIGNAL(clicked()), m_labelBrushTool, SLOT(show()));
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connect(m_labelBrushTool, SIGNAL(changed()), this, SLOT(updateSliceSettings()));
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connect(m_sliceLabelVisible, SIGNAL(toggled(bool)), this, SLOT(updateSliceSettings()));
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connect(m_sliceLabelVisible, SIGNAL(toggled(bool)), this, SLOT(updateSliceSettings()));
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connect(m_sliceLabelArmFactor, SIGNAL(valueChanged(double)), this, SLOT(updateSliceSettings()));
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connect(m_sliceExploded, SIGNAL(toggled(bool)), this, SLOT(updateSliceSettings()));
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connect(m_sliceExplodedFactor, SIGNAL(valueChanged(double)), this, SLOT(updateSliceSettings()));
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connect(m_labelPosition, SIGNAL(currentIndexChanged(int)), this, SLOT(updateSliceSettings()));
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// create chart view
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m_chartView = new QChartView(chart);
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// create main layout
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QVBoxLayout *settingsLayout = new QVBoxLayout();
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settingsLayout->addWidget(chartSettings);
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settingsLayout->addWidget(seriesSettings);
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settingsLayout->addWidget(sliceSettings);
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settingsLayout->addStretch();
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QGridLayout *baseLayout = new QGridLayout();
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baseLayout->addLayout(settingsLayout, 0, 0);
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baseLayout->addWidget(m_chartView, 0, 1);
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setLayout(baseLayout);
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updateSerieSettings();
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updateChartSettings();
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}
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void MainWidget::updateChartSettings()
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{
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QChart::ChartTheme theme = (QChart::ChartTheme) m_themeComboBox->itemData(m_themeComboBox->currentIndex()).toInt();
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m_chartView->chart()->setTheme(theme);
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m_chartView->setRenderHint(QPainter::Antialiasing, m_aaCheckBox->isChecked());
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if (m_animationsCheckBox->checkState() == Qt::Checked)
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m_chartView->chart()->setAnimationOptions(QChart::AllAnimations);
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else
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m_chartView->chart()->setAnimationOptions(QChart::NoAnimation);
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if (m_legendCheckBox->checkState() == Qt::Checked)
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m_chartView->chart()->legend()->show();
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else
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m_chartView->chart()->legend()->hide();
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}
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void MainWidget::updateSerieSettings()
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{
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m_series->setHorizontalPosition(m_hPosition->value());
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m_series->setVerticalPosition(m_vPosition->value());
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m_series->setPieSize(m_sizeFactor->value());
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m_holeSize->setMaximum(m_sizeFactor->value());
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m_series->setPieStartAngle(m_startAngle->value());
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m_series->setPieEndAngle(m_endAngle->value());
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m_series->setHoleSize(m_holeSize->value());
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}
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void MainWidget::updateSliceSettings()
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{
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if (!m_slice)
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return;
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m_slice->setLabel(m_sliceName->text());
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m_slice->setValue(m_sliceValue->value());
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m_slice->setPen(m_penTool->pen());
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m_slice->setBrush(m_brushTool->brush());
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m_slice->setLabelBrush(m_labelBrushTool->brush());
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m_slice->setLabelVisible(m_sliceLabelVisible->isChecked());
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m_slice->setLabelArmLengthFactor(m_sliceLabelArmFactor->value());
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m_slice->setLabelPosition((QPieSlice::LabelPosition)m_labelPosition->currentIndex()); // assumes that index is in sync with the enum
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m_slice->setExploded(m_sliceExploded->isChecked());
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m_slice->setExplodeDistanceFactor(m_sliceExplodedFactor->value());
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}
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void MainWidget::handleSliceClicked(QPieSlice *slice)
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{
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m_slice = static_cast<CustomSlice *>(slice);
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// name
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m_sliceName->blockSignals(true);
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m_sliceName->setText(slice->label());
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m_sliceName->blockSignals(false);
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// value
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m_sliceValue->blockSignals(true);
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m_sliceValue->setValue(slice->value());
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m_sliceValue->blockSignals(false);
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// pen
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m_pen->setText(PenTool::name(m_slice->pen()));
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m_penTool->setPen(m_slice->pen());
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// brush
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m_brush->setText(m_slice->originalBrush().color().name());
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m_brushTool->setBrush(m_slice->originalBrush());
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// label
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m_labelBrush->setText(BrushTool::name(m_slice->labelBrush()));
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m_labelBrushTool->setBrush(m_slice->labelBrush());
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m_font->setText(slice->labelFont().toString());
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m_sliceLabelVisible->blockSignals(true);
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m_sliceLabelVisible->setChecked(slice->isLabelVisible());
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m_sliceLabelVisible->blockSignals(false);
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m_sliceLabelArmFactor->blockSignals(true);
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m_sliceLabelArmFactor->setValue(slice->labelArmLengthFactor());
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m_sliceLabelArmFactor->blockSignals(false);
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m_labelPosition->blockSignals(true);
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m_labelPosition->setCurrentIndex(slice->labelPosition()); // assumes that index is in sync with the enum
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m_labelPosition->blockSignals(false);
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// exploded
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m_sliceExploded->blockSignals(true);
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m_sliceExploded->setChecked(slice->isExploded());
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m_sliceExploded->blockSignals(false);
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m_sliceExplodedFactor->blockSignals(true);
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m_sliceExplodedFactor->setValue(slice->explodeDistanceFactor());
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m_sliceExplodedFactor->blockSignals(false);
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}
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void MainWidget::showFontDialog()
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{
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if (!m_slice)
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return;
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QFontDialog dialog(m_slice->labelFont());
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dialog.show();
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dialog.exec();
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m_slice->setLabelFont(dialog.currentFont());
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m_font->setText(dialog.currentFont().toString());
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}
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void MainWidget::appendSlice()
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{
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*m_series << new CustomSlice("Slice " + QString::number(m_series->count() + 1), 10.0);
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}
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void MainWidget::insertSlice()
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{
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if (!m_slice)
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return;
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int i = m_series->slices().indexOf(m_slice);
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m_series->insert(i, new CustomSlice("Slice " + QString::number(m_series->count() + 1), 10.0));
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}
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void MainWidget::removeSlice()
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{
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if (!m_slice)
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return;
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m_sliceName->setText("<click a slice>");
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m_series->remove(m_slice);
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m_slice = 0;
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}
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#include "moc_mainwidget.cpp"
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