Fixed handling mouse wheel events after the Qt5 migration

blink/chatwindow.py

@@ -1955,10 +1955,11 @@ class ChatWindow(base_class, ui_class, ColorHelperMixin):
         elif watched in (self.latency_graph, self.packet_loss_graph, self.traffic_graph):
             if event_type == QEvent.Wheel and event.modifiers() == Qt.ControlModifier:
                 settings = BlinkSettings()
-                if event.delta() > 0 and settings.chat_window.session_info.graph_time_scale > GraphTimeScale.min_value:
+                wheel_delta = event.angleDelta().y()
+                if wheel_delta > 0 and settings.chat_window.session_info.graph_time_scale > GraphTimeScale.min_value:
                     settings.chat_window.session_info.graph_time_scale -= 1
                     settings.save()
-                elif event.delta() < 0 and settings.chat_window.session_info.graph_time_scale < GraphTimeScale.max_value:
+                elif wheel_delta < 0 and settings.chat_window.session_info.graph_time_scale < GraphTimeScale.max_value:
                     settings.chat_window.session_info.graph_time_scale += 1
                     settings.save()
         elif watched in (self.audio_encryption_label, self.video_encryption_label):

blink/screensharing/vncviewer.py

@@ -309,11 +309,17 @@ class VNCViewer(QWidget):
             x = event.x()
             y = event.y()
         button_mask = self.button_mask_map[event.buttons()]
-        if event.type() == QEvent.Wheel:
-            if event.delta() > 0:
-                wheel_button_mask = self.button_mask_map.vnc.WheelUp if event.orientation() == Qt.Vertical else self.button_mask_map.vnc.WheelLeft
-            else:
-                wheel_button_mask = self.button_mask_map.vnc.WheelDown if event.orientation() == Qt.Vertical else self.button_mask_map.vnc.WheelRight
+        if event.type() == QEvent.Wheel and event.angleDelta():
+            wheel_delta = event.angleDelta()
+            wheel_button_mask = 0
+            if wheel_delta.y() > 0:
+                wheel_button_mask |= self.button_mask_map.vnc.WheelUp
+            elif wheel_delta.y() < 0:
+                wheel_button_mask |= self.button_mask_map.vnc.WheelDown
+            if wheel_delta.x() > 0:
+                wheel_button_mask |= self.button_mask_map.vnc.WheelLeft
+            elif wheel_delta.x() < 0:
+                wheel_button_mask |= self.button_mask_map.vnc.WheelRight
             self.client.mouse_event(x, y, button_mask | wheel_button_mask)
         self.client.mouse_event(x, y, button_mask)