Don't disable band combo when only one band is present

Author: nyalldawson

src/gui/raster/qgsrasterbandcombobox.cpp

@@ -25,7 +25,6 @@ QgsRasterBandComboBox::QgsRasterBandComboBox( QWidget *parent )
   {
     emit bandChanged( currentIndex() >= 0 ? currentData().toInt() : -1 );
   } );
-  setEnabled( false );
 }
 
 QgsRasterLayer *QgsRasterBandComboBox::layer() const
@@ -63,7 +62,6 @@ void QgsRasterBandComboBox::setLayer( QgsMapLayer *layer )
       }
     }
   }
-  setEnabled( count() > 1 );
 
   if ( count() > 0 )
     setCurrentIndex( findData( oldBand ) >= 0 ? findData( oldBand ) : 0 );

tests/src/python/test_qgsrasterbandcombobox.py

@@ -35,11 +35,9 @@ def testNoLayer(self):
         combo = QgsRasterBandComboBox()
         self.assertFalse(combo.layer())
         self.assertEqual(combo.currentBand(), -1)
-        self.assertFalse(combo.isEnabled())
 
         combo.setShowNotSetOption(True)
         self.assertEqual(combo.currentBand(), -1)
-        self.assertFalse(combo.isEnabled())
 
         combo.setBand(11111)
         self.assertEqual(combo.currentBand(), -1)
@@ -58,14 +56,11 @@ def testOneBandRaster(self):
         combo.setLayer(layer)
         self.assertEqual(combo.layer(), layer)
         self.assertEqual(combo.currentBand(), 1)
-        # only one choice, should be disabled
         self.assertEqual(combo.count(), 1)
-        self.assertFalse(combo.isEnabled())
 
         combo.setShowNotSetOption(True)
         self.assertEqual(combo.currentBand(), 1)
         self.assertEqual(combo.count(), 2)
-        self.assertTrue(combo.isEnabled())
         combo.setBand(-1)
         self.assertEqual(combo.currentBand(), -1)
         combo.setBand(1)
@@ -74,7 +69,6 @@ def testOneBandRaster(self):
         combo.setShowNotSetOption(False)
         self.assertEqual(combo.currentBand(), 1)
         self.assertEqual(combo.count(), 1)
-        self.assertFalse(combo.isEnabled())
 
     def testMultiBandRaster(self):
         path = os.path.join(unitTestDataPath('raster'),
@@ -89,19 +83,16 @@ def testMultiBandRaster(self):
         self.assertEqual(combo.layer(), layer)
         self.assertEqual(combo.currentBand(), 1)
         self.assertEqual(combo.count(), 3)
-        self.assertTrue(combo.isEnabled())
         combo.setBand(2)
         self.assertEqual(combo.currentBand(), 2)
 
         combo.setShowNotSetOption(True)
         self.assertEqual(combo.currentBand(), 2)
         self.assertEqual(combo.count(), 4)
-        self.assertTrue(combo.isEnabled())
 
         combo.setShowNotSetOption(False)
         self.assertEqual(combo.currentBand(), 2)
         self.assertEqual(combo.count(), 3)
-        self.assertTrue(combo.isEnabled())
 
     def testSignals(self):
         path = os.path.join(unitTestDataPath('raster'),