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framelesshelper
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framelesshelper/src/widgets/widgetssharedhelper.cpp

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/*
* MIT License
*
* Copyright (C) 2022 by wangwenx190 (Yuhang Zhao)
*
* 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 "widgetssharedhelper_p.h"
#include <QtCore/qcoreevent.h>
#include <QtGui/qevent.h>
#include <QtGui/qpainter.h>
#include <QtGui/qwindow.h>
#include <QtWidgets/qwidget.h>
#include <framelessconfig_p.h>
#include <micamaterial.h>
#include <micamaterial_p.h>
#include <utils.h>
#include <windowborderpainter.h>
#ifdef Q_OS_WINDOWS
# include <winverhelper_p.h>
#endif // Q_OS_WINDOWS
FRAMELESSHELPER_BEGIN_NAMESPACE
Q_LOGGING_CATEGORY(lcWidgetsSharedHelper, "wangwenx190.framelesshelper.widgets.widgetssharedhelper")
#define INFO qCInfo(lcWidgetsSharedHelper)
#define DEBUG qCDebug(lcWidgetsSharedHelper)
#define WARNING qCWarning(lcWidgetsSharedHelper)
#define CRITICAL qCCritical(lcWidgetsSharedHelper)
using namespace Global;
WidgetsSharedHelper::WidgetsSharedHelper(QObject *parent) : QObject(parent)
{
}
WidgetsSharedHelper::~WidgetsSharedHelper() = default;
void WidgetsSharedHelper::setup(QWidget *widget)
{
Q_ASSERT(widget);
if (!widget) {
return;
}
if (m_targetWidget && (m_targetWidget == widget)) {
return;
}
m_targetWidget = widget;
m_borderPainter.reset(new WindowBorderPainter);
if (m_borderRepaintConnection) {
disconnect(m_borderRepaintConnection);
m_borderRepaintConnection = {};
}
m_borderRepaintConnection = connect(m_borderPainter.data(),
&WindowBorderPainter::shouldRepaint, this, [this](){
if (m_targetWidget) {
m_targetWidget->update();
}
});
m_micaMaterial.reset(new MicaMaterial);
if (m_micaRedrawConnection) {
disconnect(m_micaRedrawConnection);
m_micaRedrawConnection = {};
}
m_micaRedrawConnection = connect(m_micaMaterial.data(), &MicaMaterial::shouldRedraw,
this, [this](){
if (m_targetWidget) {
m_targetWidget->update();
}
});
m_targetWidget->installEventFilter(this);
updateContentsMargins();
m_targetWidget->update();
#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
QScreen *screen = m_targetWidget->screen();
#else
QScreen *screen = m_targetWidget->windowHandle()->screen();
#endif
handleScreenChanged(screen);
if (m_screenChangeConnection) {
disconnect(m_screenChangeConnection);
m_screenChangeConnection = {};
}
m_screenChangeConnection = connect(m_targetWidget->windowHandle(),
&QWindow::screenChanged, this, &WidgetsSharedHelper::handleScreenChanged);
}
bool WidgetsSharedHelper::isMicaEnabled() const
{
return m_micaEnabled;
}
void WidgetsSharedHelper::setMicaEnabled(const bool value)
{
if (m_micaEnabled == value) {
return;
}
m_micaEnabled = value;
if (m_targetWidget) {
m_targetWidget->update();
}
Q_EMIT micaEnabledChanged();
}
MicaMaterial *WidgetsSharedHelper::rawMicaMaterial() const
{
return (m_micaMaterial.isNull() ? nullptr : m_micaMaterial.data());
}
WindowBorderPainter *WidgetsSharedHelper::rawWindowBorder() const
{
return (m_borderPainter.isNull() ? nullptr : m_borderPainter.data());
}
bool WidgetsSharedHelper::eventFilter(QObject *object, QEvent *event)
{
Q_ASSERT(object);
Q_ASSERT(event);
if (!object || !event) {
return false;
}
if (!m_targetWidget) {
return QObject::eventFilter(object, event);
}
if (!object->isWidgetType()) {
return QObject::eventFilter(object, event);
}
const auto widget = qobject_cast<QWidget *>(object);
if (widget != m_targetWidget) {
return QObject::eventFilter(object, event);
}
switch (event->type()) {
case QEvent::Paint: {
const auto paintEvent = static_cast<QPaintEvent *>(event);
paintEventHandler(paintEvent);
} break;
case QEvent::WindowStateChange:
changeEventHandler(event);
break;
case QEvent::Move:
case QEvent::Resize:
if (m_micaEnabled) {
m_targetWidget->update();
}
break;
default:
break;
}
return QObject::eventFilter(object, event);
}
void WidgetsSharedHelper::changeEventHandler(QEvent *event)
{
Q_ASSERT(event);
if (!event) {
return;
}
if (event->type() != QEvent::WindowStateChange) {
return;
}
updateContentsMargins();
if (const auto mo = m_targetWidget->metaObject()) {
if (const int idx = mo->indexOfSignal(QMetaObject::normalizedSignature("hiddenChanged()").constData()); idx >= 0) {
QMetaObject::invokeMethod(m_targetWidget, "hiddenChanged");
}
if (const int idx = mo->indexOfSignal(QMetaObject::normalizedSignature("normalChanged()").constData()); idx >= 0) {
QMetaObject::invokeMethod(m_targetWidget, "normalChanged");
}
if (const int idx = mo->indexOfSignal(QMetaObject::normalizedSignature("zoomedChanged()").constData()); idx >= 0) {
QMetaObject::invokeMethod(m_targetWidget, "zoomedChanged");
}
}
#ifdef Q_OS_WINDOWS
const WId windowId = m_targetWidget->winId();
const bool roundCorner = FramelessConfig::instance()->isSet(Option::WindowUseRoundCorners);
if (Utils::windowStatesToWindowState(m_targetWidget->windowState()) == Qt::WindowFullScreen) {
if (WindowsVersionHelper::isWin11OrGreater() && roundCorner) {
Utils::forceSquareCornersForWindow(windowId, true);
}
} else {
const auto changeEvent = static_cast<QWindowStateChangeEvent *>(event);
if (Utils::windowStatesToWindowState(changeEvent->oldState()) == Qt::WindowFullScreen) {
Utils::maybeFixupQtInternals(windowId);
if (WindowsVersionHelper::isWin11OrGreater() && roundCorner) {
Utils::forceSquareCornersForWindow(windowId, false);
}
}
}
#endif
}
void WidgetsSharedHelper::paintEventHandler(QPaintEvent *event)
{
Q_ASSERT(event);
if (!event) {
return;
}
if (m_micaEnabled && m_micaMaterial) {
QPainter painter(m_targetWidget);
m_micaMaterial->paint(&painter, m_targetWidget->size(),
m_targetWidget->mapToGlobal(QPoint(0, 0)));
}
if ((Utils::windowStatesToWindowState(m_targetWidget->windowState()) == Qt::WindowNoState)
&& !m_borderPainter.isNull()) {
QPainter painter(m_targetWidget);
m_borderPainter->paint(&painter, m_targetWidget->size(), m_targetWidget->isActiveWindow());
}
// Don't eat this event here, we need Qt to keep dispatching this paint event
// otherwise the widget won't paint anything else from the user side.
}
void WidgetsSharedHelper::handleScreenChanged(QScreen *screen)
{
Q_ASSERT(m_targetWidget);
if (!m_targetWidget) {
return;
}
// The QScreen handle can be null if a window was moved out of a screen.
if (!screen) {
return;
}
if (m_screen == screen) {
return;
}
m_screen = screen;
m_screenDpr = m_screen->devicePixelRatio();
if (m_screenDpiChangeConnection) {
disconnect(m_screenDpiChangeConnection);
m_screenDpiChangeConnection = {};
}
m_screenDpiChangeConnection = connect(m_screen, &QScreen::physicalDotsPerInchChanged,
this, [this](const qreal dpi){
Q_UNUSED(dpi);
const qreal currentDpr = m_screen->devicePixelRatio();
if (m_screenDpr == currentDpr) {
return;
}
m_screenDpr = currentDpr;
if (m_micaEnabled && !m_micaMaterial.isNull()) {
MicaMaterialPrivate::get(m_micaMaterial.data())->maybeGenerateBlurredWallpaper(true);
}
});
}
void WidgetsSharedHelper::updateContentsMargins()
{
#ifdef Q_OS_WINDOWS
m_targetWidget->setContentsMargins(0,
((Utils::windowStatesToWindowState(m_targetWidget->windowState()) == Qt::WindowNoState)
? kDefaultWindowFrameBorderThickness : 0), 0, 0);
#endif
}
FRAMELESSHELPER_END_NAMESPACE
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