add drawing object box with label

Signed-off-by: Yu-Ren Zhang <e8035669@gmail.com>

label_img.cpp

@@ -269,13 +269,19 @@ void label_img::drawObjectBoxes(QPainter& painter, int thickWidth)
 {
     QPen pen;
     pen.setWidth(thickWidth);
+    QFont font = painter.font();
+    font.setPixelSize(12);
+    font.setBold(true);
+    painter.setFont(font);
 
     for(ObjectLabelingBox boundingbox: m_objBoundingBoxes)
     {
         pen.setColor(m_drawObjectBoxColor.at(boundingbox.label));
         painter.setPen(pen);
 
-        painter.drawRect(cvtRelativeToAbsoluteRectInUi(boundingbox.box));
+        QRect rectUi = cvtRelativeToAbsoluteRectInUi(boundingbox.box);
+        painter.drawRect(rectUi);
+        painter.drawText(rectUi.topLeft() + QPoint(5, 14 + 14 * boundingbox.label), m_objList.at(boundingbox.label));
     }
 }
 

label_img.h

@@ -25,6 +25,7 @@ public:
     void mouseReleaseEvent(QMouseEvent *ev);
 
     QVector<QColor> m_drawObjectBoxColor;
+    QStringList     m_objList;
 
     int m_uiX;
     int m_uiY;

mainwindow.cpp

@@ -250,6 +250,7 @@ void MainWindow::load_label_list_data(QString qstrLabelListFile)
 
             ui->label_image->m_drawObjectBoxColor.push_back(labelColor);
         }
+        ui->label_image->m_objList = m_objList;
     }
 }