标签:for tps legend oid gen cheng 效果 chart rap
我现在有几条折线,折线和图例一一对应,不管点击图例或者折线,相关的都高亮
// 链接信号槽 m_plot即为QCustomPlot对象 connect(m_plot, SIGNAL(selectionChangedByUser()), this, SLOT(selectionChanged()));
void ChartOperate::selectionChanged() { for (int i=0; i<m_plot->graphCount(); ++i) { setSelectChtLineStyle(i); } } void ChartOperate::setSelectChtLineStyle(int sceneIndex) { QCPGraph *graph = m_plot->graph(sceneIndex); QCPPlottableLegendItem *item = m_plot->legend->itemWithPlottable(graph); if (item->selected() || graph->selected()) { item->setSelected(true); QPen pen; pen.setWidth(3); pen.setColor(COLOR_BLUE); graph->selectionDecorator()->setPen(pen); graph->setSelection(QCPDataSelection(graph->data()->dataRange())); } }
原文地址:https://itzhai.cn/xuexijiaocheng/884.html
标签:for tps legend oid gen cheng 效果 chart rap
原文地址:https://www.cnblogs.com/tmblog/p/12661780.html