2025-04-09T21:25:54

src/ui/centralwidget.cpp

@@ -50,6 +50,10 @@ CentralWidget::CentralWidget(QWidget *parent)
 
     connect(_eventHandler,&DragLineHandler::sigSendLineXCoord,
             this,&CentralWidget::sigSendLineXCoord);
+    // 连接选中信号
+    connect(_customPlot, &QCustomPlot::selectionChangedByUser,
+            this, &CentralWidget::slotSelectionChanged);
+
 
     setEventHandlerEnable(false);
     //
@@ -200,6 +204,50 @@ void CentralWidget::slotRecvAnalysisFileName(const QString &fileName)
     _customPlot->replot();
 }
 
+void CentralWidget::slotSelectionChanged()
+{
+    for (QCPAbstractPlottable *plottable : _customPlot->plottable()) {
+        QCPCurve *curve = qobject_cast<QCPCurve *>(plottable);
+        if (curve) {
+            if (curve->selected()) {
+                // 曲线被选中，设置为橙色
+                curve->setPen(QPen(Qt::green));
+            } else {
+#if 0
+                // 曲线未被选中，恢复默认颜色
+                if (curve == _curve1) {
+                    curve->setPen(QPen(Qt::blue));
+                } else if (curve == _curve2) {
+                    curve->setPen(QPen(Qt::red));
+                }
+
+#endif
+            }
+        }
+    }
+#if 0
+    // 检查是否有曲线被选中
+    if (_customPlot->selectedPlottables().size() > 0) {
+        QCPCurve *selectedCurve = qobject_cast<QCPCurve *>(_customPlot->selectedPlottables().first());
+        if (selectedCurve) {
+            selectedCurve->setPen(QPen(Qt::green));
+#if 0
+            // 弹出颜色选择对话框
+            QColor color = QColorDialog::getColor(selectedCurve->pen().color(), this);
+            if (color.isValid()) {
+                // 改变曲线颜色
+                selectedCurve->setPen(QPen(color));
+            }
+#endif
+        }else{
+
+        }
+    }
+#endif
+
+
+}
+
 void CentralWidget::slotAnalysisSettingApply()
 {
     switch (_analysisMode) {

src/ui/centralwidget.h

@@ -35,6 +35,7 @@ public slots:
     void slotModeModify(const Global::Mode);
     void slotRecvCommonData(const CommonData&);
     void slotRecvAnalysisFileName(const QString&);
+    void slotSelectionChanged();
     //analysis setting
     void slotAnalysisSettingLineXPoint(const int index,const double);