mirror of https://github.com/cutefishos/qt-plugins
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
3.0 KiB
C++
106 lines
3.0 KiB
C++
//////////////////////////////////////////////////////////////////////////////
|
|
// breezeblurhelper.cpp
|
|
// handle regions passed to kwin for blurring
|
|
// -------------------
|
|
//
|
|
// Copyright (C) 2018 Alex Nemeth <alex.nemeth329@gmail.com>
|
|
//
|
|
// Largely rewritten from Oxygen widget style
|
|
// Copyright (C) 2007 Thomas Luebking <thomas.luebking@web.de>
|
|
// Copyright (c) 2010 Hugo Pereira Da Costa <hugo.pereira@free.fr>
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to
|
|
// deal in the Software without restriction, including without limitation the
|
|
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
|
|
// sell copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
// IN THE SOFTWARE.
|
|
//////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include "blurhelper.h"
|
|
|
|
// KF5
|
|
#include <KWindowEffects>
|
|
|
|
// Qt
|
|
#include <QWidget>
|
|
#include <QVariant>
|
|
#include <QEvent>
|
|
#include <QPainterPath>
|
|
|
|
BlurHelper::BlurHelper(QObject *parent)
|
|
: QObject(parent)
|
|
{
|
|
}
|
|
|
|
void BlurHelper::registerWidget(QWidget *widget)
|
|
{
|
|
// install event filter
|
|
addEventFilter(widget);
|
|
|
|
// schedule shadow area repaint
|
|
update(widget);
|
|
}
|
|
|
|
void BlurHelper::unregisterWidget(QWidget *widget)
|
|
{
|
|
// remove event filter
|
|
widget->removeEventFilter(this);
|
|
}
|
|
|
|
bool BlurHelper::eventFilter(QObject *object, QEvent *event)
|
|
{
|
|
switch (event->type()) {
|
|
case QEvent::Hide:
|
|
case QEvent::Show:
|
|
case QEvent::Resize: {
|
|
// cast to widget and check
|
|
QWidget *widget(qobject_cast<QWidget*>(object));
|
|
|
|
if (!widget)
|
|
break;
|
|
|
|
update(widget);
|
|
break;
|
|
}
|
|
|
|
default: break;
|
|
}
|
|
|
|
// never eat events
|
|
return false;
|
|
}
|
|
|
|
|
|
void BlurHelper::update(QWidget *widget) const
|
|
{
|
|
/*
|
|
directly from bespin code. Supposedly prevent playing with some 'pseudo-widgets'
|
|
that have winId matching some other -random- window
|
|
*/
|
|
if (!(widget->testAttribute(Qt::WA_WState_Created) || widget->internalWinId()))
|
|
return;
|
|
|
|
if (widget->mask().isEmpty()) {
|
|
KWindowEffects::enableBlurBehind(widget->winId(), true);
|
|
} else {
|
|
KWindowEffects::enableBlurBehind(widget->winId(), true, widget->mask());
|
|
}
|
|
|
|
// force update
|
|
if (widget->isVisible()) {
|
|
widget->update();
|
|
}
|
|
}
|