QGIS API Documentation  3.14.0-Pi (9f7028fd23)
Signals | Public Member Functions | List of all members
QgsFocusWatcher Class Reference

#include <qgsfocuswatcher.h>

Inheritance diagram for QgsFocusWatcher:
Inheritance graph


void focusChanged (bool focused)
 Emitted when parent object's focus changes. More...
void focusIn ()
 Emitted when parent object gains focus. More...
void focusOut ()
 Emitted when parent object loses focus. More...

Public Member Functions

 QgsFocusWatcher (QObject *parent)
 Constructor for QgsFocusWatcher. More...
bool eventFilter (QObject *obj, QEvent *event) override

Detailed Description

A event filter for watching for focus events on a parent object. 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.

QGIS 2.16

Definition at line 33 of file qgsfocuswatcher.h.

Constructor & Destructor Documentation

◆ QgsFocusWatcher()

QgsFocusWatcher::QgsFocusWatcher ( QObject *  parent)

Constructor for QgsFocusWatcher.

parentparent widget to catch focus events for. This class will automatically be installed as an event filter for parent.

Definition at line 19 of file qgsfocuswatcher.cpp.

Member Function Documentation

◆ eventFilter()

bool QgsFocusWatcher::eventFilter ( QObject *  obj,
QEvent *  event 

Definition at line 26 of file qgsfocuswatcher.cpp.

◆ focusChanged

void QgsFocusWatcher::focusChanged ( bool  focused)

Emitted when parent object's focus changes.

focusedtrue if object gained focus, false if object lost focus

◆ focusIn

void QgsFocusWatcher::focusIn ( )

Emitted when parent object gains focus.

◆ focusOut

void QgsFocusWatcher::focusOut ( )

Emitted when parent object loses focus.

The documentation for this class was generated from the following files: