removing add button for adding a row in table

BandTableWidget.py

@@ -56,7 +56,6 @@ class BandTableWidget(BASE, WIDGET):
         
         self.cmbLayers.setFilters(QgsMapLayerProxyModel.RasterLayer)
         self.cmbLayers.layerChanged.connect(self.layerChanged)
-        self.btnAdd.setIcon(QgsApplication.getThemeIcon('/symbologyAdd.svg'))
         self.btnRemove.setIcon(QgsApplication.getThemeIcon('/symbologyRemove.svg'))
         self.btnUp.setIcon(QgsApplication.getThemeIcon('/mActionArrowUp.svg'))
         self.btnDown.setIcon(QgsApplication.getThemeIcon('/mActionArrowDown.svg'))
@@ -75,28 +74,23 @@ class BandTableWidget(BASE, WIDGET):
         # for each band
         for band_number in range(nbands):
             band = input_raster.GetRasterBand(band_number + 1)
-            # add band name to table in first column
-            self._addBandData(band.GetDescription())
+            # add band name and number to table
+            bandnumber = 'bande ' + str(band_number+1)
+            bandname = band.GetDescription()
+            self._addBandData(bandnumber, bandname)
     
-    # add selected raster band names to table
-    def _addBandData(self, bandname):
+    # add selected raster band number and names to table
+    def _addBandData(self, bandnumber, bandname):
         item = QTreeWidgetItem()
-        item.setText(0, bandname)
-        item.setText(1, '')
+        item.setText(0, bandnumber)
+        item.setText(1, bandname)
+        #item.setText(2, '')
         self.bandClassTree.addTopLevelItem(item)
     
     # remove all rows from table    
     def _removeBandData(self,):
         self.bandClassTree.clear()
 
-    @pyqtSlot()
-    def on_btnAdd_clicked(self):
-        item = QTreeWidgetItem()
-        item.setText(0, '0.00')
-        item.setText(1, '0.00')
-#        item.setBackground(2, QBrush(QColor(127, 127, 127)))
-        self.bandClassTree.addTopLevelItem(item)
-
     @pyqtSlot()
     def on_btnRemove_clicked(self):
         selectedItems = self.bandClassTree.selectedItems()
@@ -129,13 +123,13 @@ class BandTableWidget(BASE, WIDGET):
         if not item:
             return
 
-        if column == 1:
+        if column == 2:
             d, ok = QInputDialog.getText(None,
                                            self.tr('Band name'),
                                            self.tr('Enter new band name')
                                            )
             if ok:
-                item.setText(1, str(d))
+                item.setText(2, str(d))
 
     def reliefColors(self):
         colors = []

bandtablewidgetbase.ui

@@ -36,6 +36,11 @@
    </item>
    <item row="1" column="0" colspan="2">
     <widget class="QTreeWidget" name="bandClassTree">
+     <column>
+      <property name="text">
+       <string>Band number</string>
+      </property>
+     </column>
      <column>
       <property name="text">
        <string>Band name</string>
@@ -50,16 +55,6 @@
    </item>
    <item row="1" column="3">
     <layout class="QVBoxLayout" name="verticalLayout">
-     <item>
-      <widget class="QToolButton" name="btnAdd">
-       <property name="toolTip">
-        <string>Add row</string>
-       </property>
-       <property name="text">
-        <string>…</string>
-       </property>
-      </widget>
-     </item>
      <item>
       <widget class="QToolButton" name="btnRemove">
        <property name="toolTip">