Qt-WrongQEventCast

When static_casting a QEvent, cast to the correct type

Required inputs: IR

Example:

switch (ev->type()) {
    case QEvent::MouseMove:
        auto e = static_cast<QKeyEvent*>(ev);
}

Only casts inside switch statements are verified.

This rule is based on clazy rule wrong-qevent-cast

Possible Messages

Key	Text	Severity	Disabled
wrong_qevent_cast	Cast from a QEvent::{} event to {} looks suspicious.	None	False

Options

• This rule shares the following common options: exclude_in_macros, exclude_messages_in_system_headers, excludes, extend_exclude_to_macro_invocations, includes, justification_checker, languages, post_processing, provider, report_at, severity

• The following places define options that affect this rule: Stylechecks, Analysis-GlobalOptions

level

level : int = 0

Importance level of the rule as given for clazy. 0 is most desirable, higher values fall off in quality.

 

unregularly_named_event_types

unregularly_named_event_types

Type: dict[str, list[str]]

Default:

{
   'ActionAdded': ['QActionEvent'],
   'ActionChanged': ['QActionEvent'],
   'ActionRemoved': ['QActionEvent'],
   'ChildAdded': ['QChildEvent'],
   'ChildPolished': ['QChildEvent'],
   'ChildRemoved': ['QChildEvent'],
   'ContextMenu': ['QInputEvent'],
   'DragEnter': ['QDragEnterEvent', 'QDragMoveEvent', 'QDropEvent'],
   'DragLeave': ['QDragLeaveEvent', 'QDragMoveEvent', 'QDropEvent'],
   'DragMove': ['QDragMoveEvent', 'QDropEvent'],
   'FocusAboutToChange': ['QFocusEvent'],
   'FocusIn': ['QFocusEvent'],
   'FocusOut': ['QFocusEvent'],
   'Gesture': ['QGestureEvent'],
   'GestureOverride': ['QGestureEvent'],
   'GraphicsSceneContextMenu': ['QGraphicsSceneEvent'],
   'GraphicsSceneDragEnter': ['QGraphicsSceneDragDropEvent', 'QGraphicsSceneEvent'],
   'GraphicsSceneDragLeave': ['QGraphicsSceneDragDropEvent', 'QGraphicsSceneEvent'],
   'GraphicsSceneDragMove': ['QGraphicsSceneDragDropEvent', 'QGraphicsSceneEvent'],
   'GraphicsSceneDrop': ['QGraphicsSceneDragDropEvent', 'QGraphicsSceneEvent'],
   'GraphicsSceneHelp': ['QGraphicsSceneEvent'],
   'GraphicsSceneHoverEnter': ['QGraphicsSceneHoverEvent', 'QGraphicsSceneEvent'],
   'GraphicsSceneHoverLeave': ['QGraphicsSceneHoverEvent', 'QGraphicsSceneEvent'],
   'GraphicsSceneHoverMove': ['QGraphicsSceneHoverEvent', 'QGraphicsSceneEvent'],
   'GraphicsSceneMouseDoubleClick': ['QGraphicsSceneMouseEvent'],
   'GraphicsSceneMouseMove': ['QGraphicsSceneMouseEvent'],
   'GraphicsSceneMousePress': ['QGraphicsSceneMouseEvent'],
   'GraphicsSceneMouseRelease': ['QGraphicsSceneMouseEvent'],
   'GraphicsSceneResize': ['QGraphicsSceneEvent'],
   'GraphicsSceneWheel': ['QGraphicsSceneEvent'],
   'HoverEnter': ['QHoverEvent', 'QInputEvent'],
   'HoverLeave': ['QHoverEvent', 'QInputEvent'],
   'HoverMove': ['QHoverEvent', 'QInputEvent'],
   'KeyPress': ['QKeyEvent', 'QInputEvent'],
   'KeyRelease': ['QKeyEvent', 'QInputEvent'],
   'MetaCall': ['QDBusSpyCallEvent', 'QDBusCallDeliveryEvent'],
   'MouseButtonDblClick': ['QMouseEvent'],
   'MouseButtonPress': ['QMouseEvent'],
   'MouseButtonRelease': ['QMouseEvent'],
   'MouseMove': ['QMouseEvent'],
   'NativeGesture': ['QInputEvent'],
   'NonClientAreaMouseButtonDblClick': ['QMouseEvent'],
   'NonClientAreaMouseButtonPress': ['QMouseEvent'],
   'NonClientAreaMouseButtonRelease': ['QMouseEvent'],
   'NonClientAreaMouseMove': ['QMouseEvent'],
   'OrientationChange': ['QScreenOrientationChangeEvent'],
   'QueryWhatsThis': ['QHelpEvent'],
   'ShortcutOverride': ['QKeyEvent', 'QInputEvent'],
   'TabletEnterProximity': ['QTabletEvent', 'QInputEvent'],
   'TabletLeaveProximity': ['QTabletEvent', 'QInputEvent'],
   'TabletMove': ['QTabletEvent', 'QInputEvent'],
   'TabletPress': ['QTabletEvent', 'QInputEvent'],
   'TabletRelease': ['QTabletEvent', 'QInputEvent'],
   'ToolTip': ['QHelpEvent'],
   'TouchBegin': ['QTouchEvent', 'QInputEvent'],
   'TouchCancel': ['QTouchEvent', 'QInputEvent'],
   'TouchEnd': ['QTouchEvent', 'QInputEvent'],
   'TouchUpdate': ['QTouchEvent', 'QInputEvent'],
   'WhatsThis': ['QHelpEvent'],
   'Wheel': ['QInputEvent']
}

A mapping from event codes to a list of event classes to which an event using this code can be cast. Only needed for mappings that do not follow the obvious standard naming scheme.