QChart 自定义图例位置title前添加图片

#include "mychart.h" MyChart::MyChart(QWidget *parent) : QGraphicsView(parent) { initWidget(); } MyChart::~MyChart() { } void MyChart::setTitle(QString path, QString name) { if(!path.isEmpty()) wt_top->setImage(path); wt_top->setName(name); } void MyChart::setGeometrys(qreal x, qreal y, qreal w, qreal h) { m_grapScene->setSceneRect(x, y, w, h); this->setSceneRect(x, y, w, h); m_chart->setGeometry(x, y, w, h); wt_top->setGeometry(9, 0, w - 18, 20); } void MyChart::setStyle(QString style) { this->setStyleSheet(style); } void MyChart::setAxisX(QAbstractAxis *axis, QAbstractSeries *series) { m_chart->setAxisX(axis, series); } void MyChart::setAxisY(QAbstractAxis *axis, QAbstractSeries *series) { m_chart->setAxisY(axis, series); } void MyChart::addSeries(QAbstractSeries *series) { m_chart->addSeries(series); } QLegend *MyChart::Legend() { return m_chart->legend(); } void MyChart::initWidget() { m_grapScene = new QGraphicsScene(); this->setScene(m_grapScene); wt_top = new CreateTopWidget(); m_chart = new QChart(); QBrush brush(QColor(8, 21, 66)); m_chart->setBackgroundBrush(brush); m_chart->setAnimationOptions(QChart::SeriesAnimations); m_chart->createDefaultAxes(); QLegend *le = m_chart->legend(); m_grapScene->addItem(m_chart); m_grapScene->addWidget(wt_top); wt_top->setGrapScene(le); } /**************CreateTopWidget******************/ CreateTopWidget::CreateTopWidget(QWidget *parent) : QWidget(parent) , m_width(0) { initWidget(); } CreateTopWidget::~CreateTopWidget() { } void CreateTopWidget::setGrapScene(QLegend *le) { m_scene->addItem(le); } void CreateTopWidget::setImage(QString name) { QImage image; image.load(name); m_width = image.width(); QImage result = image.scaled(800, 500).scaled(m_width, image.height(), Qt::IgnoreAspectRatio, Qt::SmoothTransformation); lb_img->setPixmap(QPixmap::fromImage(result)); lb_img->show(); } void CreateTopWidget::setName(QString name) { QFont ft; ft.setPointSize(12); ft.setWeight(150); lb_name->setFont(ft); lb_name->setStyleSheet("color:white;"); lb_name->setText(name); int index = m_width + name.size(); setSceneRect(index); } void CreateTopWidget::setSceneRect(int index) { m_grapView->setSceneRect(200 + index, 40, 100, 10); } void CreateTopWidget::initWidget() { setStyleSheet("background-color:rgb(8, 21, 66);"); m_scene = new QGraphicsScene(); m_scene->setSceneRect(0, 0, 100, 10); m_grapView = new QGraphicsView(); m_grapView->setStyleSheet("border: 3px solid rgb(8, 21, 66);"); m_grapView->setScene(m_scene); QHBoxLayout * lay = new QHBoxLayout(); lay->setContentsMargins(9, 0, 0, 0); lay->setSpacing(0); setLayout(lay); QWidget * widget = new QWidget(); QHBoxLayout* tblay = new QHBoxLayout(); tblay->setContentsMargins(0, 0, 0, 0); tblay->setSpacing(20); widget->setLayout(tblay); lb_img = new QLabel(); tblay->addWidget(lb_img); lb_name = new QLabel(); tblay->addWidget(lb_name); QSpacerItem* spacer = new QSpacerItem(20, 20, QSizePolicy::Expanding, QSizePolicy::Minimum); tblay->addSpacerItem(spacer); QHBoxLayout* btnLay = new QHBoxLayout(); btnLay->setContentsMargins(0, 0, 0, 0); QWidget* wt_title = new QWidget(); wt_title->setGeometry(0, 0, 100, 10); btnLay->addWidget(wt_title); tblay->addLayout(btnLay); QHBoxLayout* hblay = new QHBoxLayout(); hblay->setContentsMargins(0, 0, 0, 0); hblay->setSpacing(0); wt_title->setLayout(hblay); hblay->addWidget(m_grapView); lay->addWidget(widget); }