QgsFocusWatcher class
A event filter for watching for focus events on a parent object.
Contents
Usually QObjects must subclass and override methods like focusOutEvent to handle focus events. Using this class as an event filter avoids the need to subclass objects and the focus events can be directly caught using the emitted signals.
Constructors, destructors, conversion operators
- QgsFocusWatcher(QObject* parent) explicit
- Constructor for QgsFocusWatcher.
Signals
- void focusChanged(bool focused)
- Emitted when parent object's focus changes.
- void focusIn()
- Emitted when parent object gains focus.
- void focusOut()
- Emitted when parent object loses focus.
Function documentation
QgsFocusWatcher::
Constructor for QgsFocusWatcher.
| Parameters | |
|---|---|
| parent | parent widget to catch focus events for. This class will automatically be installed as an event filter for parent. |
void QgsFocusWatcher::
Emitted when parent object's focus changes.
| Parameters | |
|---|---|
| focused | true if object gained focus, false if object lost focus |