#include "bargraphics.h"
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#include <QDebug>
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#include <QGraphicsSceneMouseEvent>
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#include <QToolTip>
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#include <qmath.h>
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BarGraphics::BarGraphics(QWidget *parent) : QWidget(parent)
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{
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m_rankSet = new QBarSet("排名",this);
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m_amountSet = new QBarSet("交易额",this);
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m_barSeries = new QBarSeries(this);
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m_chart = new QChart();
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m_barAxis = new QBarCategoryAxis(this);
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m_chartView = new QChartView(this);
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m_hLayout = new QHBoxLayout(this); // 放到水平布局中
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m_chart->setTitle("灵动策略1");
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}
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BarGraphics::BarGraphics(QVector<int> &rank, QVector<double> &amount, QStringList &timeAxis, QString name, QWidget *parent): QWidget(parent)
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{
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m_rankSet = new QBarSet("排名",this);
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m_amountSet = new QBarSet("交易额",this);
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m_barSeries = new QBarSeries(this);
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m_chart = new QChart();
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m_barAxis = new QBarCategoryAxis(this);
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m_chartView = new QChartView(this);
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m_hLayout = new QHBoxLayout(this); // 放到水平布局中
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m_chart->setTitle(name);
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m_chart->setAnimationOptions(QChart::SeriesAnimations);
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for(int i=0;i<rank.size();++i){
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m_rankSet->append(rank[i]);
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m_amountSet->append(amount[i]);
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}
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//m_barSeries->clear();
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m_barSeries->append(m_rankSet);
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m_barSeries->append(m_amountSet);
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m_chart->addSeries(m_barSeries); // 区分一下 添加一次和多次的区别
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m_barAxis->append(timeAxis);
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m_chart->createDefaultAxes();
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m_chart->setAxisX(m_barAxis,m_barSeries);
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m_chartView->setChart(m_chart);
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m_hLayout->addWidget(m_chartView);
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qDebug()<<"222添加数据完成"<<m_rankSet->count();
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m_chart->installEventFilter(this);
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}
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void BarGraphics::addBarData(QVector<int> &rank, QVector<double> &amount,QStringList &timeAxis)
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{
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for(int i=0;i<rank.size();++i){
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m_rankSet->append(rank[i]);
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m_amountSet->append(amount[i]);
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}
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//m_barSeries->clear();
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m_barSeries->append(m_rankSet);
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m_barSeries->append(m_amountSet);
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m_chart->addSeries(m_barSeries); // 区分一下 添加一次和多次的区别
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m_barAxis->append(timeAxis);
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m_chart->createDefaultAxes();
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m_chart->setAxisX(m_barAxis,m_barSeries);
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m_chartView->setChart(m_chart);
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m_hLayout->addWidget(m_chartView);
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qDebug()<<"添加数据完成"<<m_rankSet->count();
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}
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bool BarGraphics::eventFilter(QObject *watched, QEvent *event)
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{
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if (event->type() == QEvent::GraphicsSceneMouseMove) {
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QGraphicsSceneMouseEvent *mouseEvent = static_cast<QGraphicsSceneMouseEvent *>(event);
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qDebug()<<"GraphicsSceneMouseMove in";
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// 确保不是拖拽操作且鼠标在图表区域内
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if (mouseEvent->buttons() == Qt::NoButton) {
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QPointF scenePos = mouseEvent->scenePos();
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QRectF plotArea = qobject_cast<QChart*>(watched)->plotArea();
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qDebug()<<"GraphicsSceneMouseMove in1111";
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if (plotArea.contains(scenePos)) {
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QBarSeries *series = watched->findChild<QBarSeries*>();
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qDebug()<<"GraphicsSceneMouseMove in2222";
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if (series) {
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QList<QBarSet*> sets = series->barSets();
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for (QBarSet *set : sets) {
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// 计算鼠标所在的柱子索引
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qreal categorySize = plotArea.width() / series->count();
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int categoryIndex = qFloor((scenePos.x() - plotArea.x()) / categorySize);
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if (categoryIndex >= 0 && categoryIndex < set->count()) {
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qreal value = set->at(categoryIndex);
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QToolTip::showText(
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mouseEvent->screenPos(),
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QString("值: %1").arg(value),
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qobject_cast<QWidget*>(watched)
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);
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qDebug()<<"GraphicsSceneMouseMove in3333";
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return true;
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}
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}
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}
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}
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}
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}
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else if (event->type() == QEvent::Leave) {
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// 更可靠的鼠标离开事件处理
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QToolTip::hideText();
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return true;
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}
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else if (event->type() == QEvent::ToolTip) {
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// 阻止默认工具提示行为
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return true;
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}
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return QWidget::eventFilter(watched,event);
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}
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