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#include "mainwidget.h"
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#include "qchartwidget.h"
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//#include <chartwidget.h>
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#include <QPushButton>
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#include <QComboBox>
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#include <QSpinBox>
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#include <QCheckBox>
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#include <QGridLayout>
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#include <QHBoxLayout>
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#include <QLabel>
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#include <QSpacerItem>
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#include <QMessageBox>
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#include <cmath>
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#include <QDebug>
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MainWidget::MainWidget(QWidget *parent) :
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QWidget(parent)
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{
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m_chartWidget = new QChartWidget(this);
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// m_chartWidget->resize(QSize(200,200));
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// m_chartWidget->setColor(Qt::red);
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// Chart type
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// TODO: How about multiple types?
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// Should the type be a property of a graph instead of the chart?
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QComboBox *chartTypeCombo = new QComboBox(this);
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chartTypeCombo->addItem("Line");
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chartTypeCombo->addItem("Area");
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chartTypeCombo->addItem("Bar");
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chartTypeCombo->addItem("Pie");
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chartTypeCombo->addItem("Scatter");
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chartTypeCombo->addItem("Spline");
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connect(chartTypeCombo, SIGNAL(currentIndexChanged(int)),
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this, SLOT(chartTypeChanged(int)));
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// Test data selector
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QPushButton *fileButton = new QPushButton("From file");
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QPushButton *urlButton = new QPushButton("From URL");
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// Chart background
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QComboBox *backgroundCombo = new QComboBox(this);
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backgroundCombo->addItem("todo: add background types");
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connect(backgroundCombo, SIGNAL(currentIndexChanged(int)),
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this, SLOT(backgroundChanged(int)));
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// Axis
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// TODO: multiple axes?
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m_autoScaleCheck = new QCheckBox("Automatic scaling");
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connect(m_autoScaleCheck, SIGNAL(stateChanged(int)), this, SLOT(autoScaleChanged(int)));
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// Allow setting also non-sense values (like -2147483648 and 2147483647)
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m_xMinSpin = new QSpinBox();
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m_xMinSpin->setMinimum(INT_MIN);
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m_xMinSpin->setMaximum(INT_MAX);
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m_xMinSpin->setValue(0);
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connect(m_xMinSpin, SIGNAL(valueChanged(int)), this, SLOT(xMinChanged(int)));
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m_xMaxSpin = new QSpinBox();
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m_xMaxSpin->setMinimum(INT_MIN);
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m_xMaxSpin->setMaximum(INT_MAX);
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m_xMaxSpin->setValue(10);
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connect(m_xMaxSpin, SIGNAL(valueChanged(int)), this, SLOT(xMaxChanged(int)));
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m_yMinSpin = new QSpinBox();
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m_yMinSpin->setMinimum(INT_MIN);
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m_yMinSpin->setMaximum(INT_MAX);
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m_yMinSpin->setValue(0);
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connect(m_yMinSpin, SIGNAL(valueChanged(int)), this, SLOT(yMinChanged(int)));
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m_yMaxSpin = new QSpinBox();
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m_yMaxSpin->setMinimum(INT_MIN);
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m_yMaxSpin->setMaximum(INT_MAX);
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m_yMaxSpin->setValue(10);
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connect(m_yMaxSpin, SIGNAL(valueChanged(int)), this, SLOT(yMaxChanged(int)));
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QGridLayout *grid = new QGridLayout();
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QHBoxLayout *hbox = new QHBoxLayout();
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grid->addWidget(new QLabel("Chart type:"), 0, 0);
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grid->addWidget(chartTypeCombo, 0, 1, 1, 2);
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grid->addWidget(new QLabel("Data:"), 1, 0);
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grid->addWidget(fileButton, 1, 1);
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grid->addWidget(urlButton, 1, 2);
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grid->addWidget(new QLabel("Background:"), 2, 0);
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grid->addWidget(backgroundCombo, 2, 1, 1, 2);
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grid->addWidget(m_autoScaleCheck, 3, 0);
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grid->addWidget(new QLabel("x min:"), 4, 0);
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grid->addWidget(m_xMinSpin, 4, 1, 1, 2);
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grid->addWidget(new QLabel("x max:"), 5, 0);
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grid->addWidget(m_xMaxSpin, 5, 1, 1, 2);
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grid->addWidget(new QLabel("y min:"), 6, 0);
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grid->addWidget(m_yMinSpin, 6, 1, 1, 2);
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grid->addWidget(new QLabel("y max:"), 7, 0);
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grid->addWidget(m_yMaxSpin, 7, 1, 1, 2);
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// add row with empty label to make all the other rows static
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grid->addWidget(new QLabel(""), 8, 0);
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grid->setRowStretch(8, 1);
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hbox->addLayout(grid);
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hbox->addWidget(m_chartWidget);
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hbox->setStretch(1, 1);
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setLayout(hbox);
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m_autoScaleCheck->setChecked(true);
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chartTypeChanged(4);
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}
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void MainWidget::chartTypeChanged(int itemIndex)
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{
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// TODO: change chart type
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switch (itemIndex) {
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case 4: {
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QList<QChartDataPoint> data;
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for (int x = 0; x < 1000; ++x) {
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data.append(QChartDataPoint() << x -200 << 2 * (uint(sin(3.14159/50*x)*80) % 100));
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}
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// data.append(QChartDataPoint() << 0 << 0);
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// data.append(QChartDataPoint() << 2 << 2);
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// data.append(QChartDataPoint() << 4 << 5);
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// data.append(QChartDataPoint() << 5 << 9);
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// data.append(QChartDataPoint() << 20 << 20);
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// QList<int> data;
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m_chartWidget->setType(4);
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m_chartWidget->setData(data);
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break;
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}
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default: {
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m_chartWidget->setType(0);
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break;
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}
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}
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}
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void MainWidget::dataChanged(QString itemText)
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{
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qDebug() << "dataChanged: " << itemText;
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}
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void MainWidget::backgroundChanged(int itemIndex)
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{
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qDebug() << "backgroundChanged: " << itemIndex;
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}
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void MainWidget::autoScaleChanged(int value)
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{
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if (value) {
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// TODO: enable auto scaling
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} else {
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// TODO: set scaling manually (and disable auto scaling)
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}
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m_xMinSpin->setEnabled(!value);
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m_xMaxSpin->setEnabled(!value);
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m_yMinSpin->setEnabled(!value);
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m_yMaxSpin->setEnabled(!value);
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}
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void MainWidget::xMinChanged(int value)
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{
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qDebug() << "xMinChanged: " << value;
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}
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void MainWidget::xMaxChanged(int value)
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{
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qDebug() << "xMaxChanged: " << value;
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}
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void MainWidget::yMinChanged(int value)
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{
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qDebug() << "yMinChanged: " << value;
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}
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void MainWidget::yMaxChanged(int value)
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{
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qDebug() << "yMaxChanged: " << value;
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}
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