aerothemeplasma/kwin/decoration/breeze-v5.93.0/kstyle/breezemnemonics.cpp
2024-08-09 03:20:25 +02:00

80 lines
1.6 KiB
C++

/*
* SPDX-FileCopyrightText: 2014 Hugo Pereira Da Costa <hugo.pereira@free.fr>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "breezemnemonics.h"
#include <QKeyEvent>
#include <QWidget>
namespace Breeze
{
//____________________________________________________
void Mnemonics::setMode(int mode)
{
switch (mode) {
case StyleConfigData::MN_NEVER:
qApp->removeEventFilter(this);
setEnabled(false);
break;
default:
case StyleConfigData::MN_ALWAYS:
qApp->removeEventFilter(this);
setEnabled(true);
break;
case StyleConfigData::MN_AUTO:
qApp->removeEventFilter(this);
qApp->installEventFilter(this);
setEnabled(false);
break;
}
}
//____________________________________________________
bool Mnemonics::eventFilter(QObject *, QEvent *event)
{
switch (event->type()) {
case QEvent::KeyPress:
if (static_cast<QKeyEvent *>(event)->key() == Qt::Key_Alt) {
setEnabled(true);
}
break;
case QEvent::KeyRelease:
if (static_cast<QKeyEvent *>(event)->key() == Qt::Key_Alt) {
setEnabled(false);
}
break;
case QEvent::ApplicationStateChange:
setEnabled(false);
break;
default:
break;
}
return false;
}
//____________________________________________________
void Mnemonics::setEnabled(bool value)
{
if (_enabled == value) {
return;
}
_enabled = value;
// update all top level widgets
const auto widgets = qApp->topLevelWidgets();
for (QWidget *widget : widgets) {
widget->update();
}
}
}