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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qoffscreenwindow.h"
#include "qoffscreencommon.h"
#include <qpa/qplatformscreen.h>
#include <qpa/qwindowsysteminterface.h>
#include <private/qwindow_p.h>
#include <private/qguiapplication_p.h>
QT_BEGIN_NAMESPACE
QOffscreenWindow::QOffscreenWindow(QWindow *window, bool frameMarginsEnabled)
: QPlatformWindow(window)
, m_positionIncludesFrame(false)
, m_visible(false)
, m_pendingGeometryChangeOnShow(true)
, m_frameMarginsRequested(frameMarginsEnabled)
{
if (window->windowState() == Qt::WindowNoState) {
setGeometry(windowGeometry());
} else {
setWindowState(window->windowStates());
}
static WId counter = 0;
m_winId = ++counter;
m_windowForWinIdHash[m_winId] = this;
}
QOffscreenWindow::~QOffscreenWindow()
{
if (QOffscreenScreen::windowContainingCursor == this)
QOffscreenScreen::windowContainingCursor = nullptr;
m_windowForWinIdHash.remove(m_winId);
}
void QOffscreenWindow::setGeometry(const QRect &rect)
{
if (window()->windowState() != Qt::WindowNoState)
return;
m_positionIncludesFrame = qt_window_private(window())->positionPolicy == QWindowPrivate::WindowFrameInclusive;
setFrameMarginsEnabled(m_frameMarginsRequested);
setGeometryImpl(rect);
m_normalGeometry = geometry();
}
void QOffscreenWindow::setGeometryImpl(const QRect &rect)
{
QRect adjusted = rect;
if (adjusted.width() <= 0)
adjusted.setWidth(1);
if (adjusted.height() <= 0)
adjusted.setHeight(1);
if (m_positionIncludesFrame) {
adjusted.translate(m_margins.left(), m_margins.top());
} else {
// make sure we're not placed off-screen
if (adjusted.left() < m_margins.left())
adjusted.translate(m_margins.left(), 0);
if (adjusted.top() < m_margins.top())
adjusted.translate(0, m_margins.top());
}
QPlatformWindow::setGeometry(adjusted);
if (m_visible) {
QWindowSystemInterface::handleGeometryChange(window(), adjusted);
QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), adjusted.size()));
} else {
m_pendingGeometryChangeOnShow = true;
}
}
void QOffscreenWindow::setVisible(bool visible)
{
if (visible == m_visible)
return;
if (visible) {
if (window()->type() != Qt::ToolTip)
QWindowSystemInterface::handleFocusWindowChanged(window(), Qt::ActiveWindowFocusReason);
if (m_pendingGeometryChangeOnShow) {
m_pendingGeometryChangeOnShow = false;
QWindowSystemInterface::handleGeometryChange(window(), geometry());
}
}
const QPoint cursorPos = QCursor::pos();
if (visible) {
QRect rect(QPoint(), geometry().size());
QWindowSystemInterface::handleExposeEvent(window(), rect);
if (QWindowPrivate::get(window())->isPopup() && QGuiApplicationPrivate::currentMouseWindow) {
QWindowSystemInterface::handleLeaveEvent<QWindowSystemInterface::SynchronousDelivery>
(QGuiApplicationPrivate::currentMouseWindow);
}
if (geometry().contains(cursorPos))
QWindowSystemInterface::handleEnterEvent(window(),
window()->mapFromGlobal(cursorPos), cursorPos);
} else {
QWindowSystemInterface::handleExposeEvent(window(), QRegion());
if (window()->type() & Qt::Window) {
if (QWindow *windowUnderMouse = QGuiApplication::topLevelAt(cursorPos)) {
QWindowSystemInterface::handleEnterEvent(windowUnderMouse,
windowUnderMouse->mapFromGlobal(cursorPos),
cursorPos);
}
}
}
m_visible = visible;
}
void QOffscreenWindow::requestActivateWindow()
{
if (m_visible)
QWindowSystemInterface::handleFocusWindowChanged(window(), Qt::ActiveWindowFocusReason);
}
WId QOffscreenWindow::winId() const
{
return m_winId;
}
QMargins QOffscreenWindow::frameMargins() const
{
return m_margins;
}
void QOffscreenWindow::setFrameMarginsEnabled(bool enabled)
{
if (enabled
&& !(window()->flags() & Qt::FramelessWindowHint)
&& (parent() == nullptr)) {
m_margins = QMargins(2, 2, 2, 2);
} else {
m_margins = QMargins(0, 0, 0, 0);
}
}
void QOffscreenWindow::setWindowState(Qt::WindowStates state)
{
setFrameMarginsEnabled(m_frameMarginsRequested && !(state & Qt::WindowFullScreen));
m_positionIncludesFrame = false;
if (state & Qt::WindowMinimized)
; // nothing to do
else if (state & Qt::WindowFullScreen)
setGeometryImpl(screen()->geometry());
else if (state & Qt::WindowMaximized)
setGeometryImpl(screen()->availableGeometry().adjusted(m_margins.left(), m_margins.top(), -m_margins.right(), -m_margins.bottom()));
else
setGeometryImpl(m_normalGeometry);
QWindowSystemInterface::handleWindowStateChanged(window(), state);
}
QOffscreenWindow *QOffscreenWindow::windowForWinId(WId id)
{
return m_windowForWinIdHash.value(id, nullptr);
}
Q_CONSTINIT QHash<WId, QOffscreenWindow *> QOffscreenWindow::m_windowForWinIdHash;
QT_END_NAMESPACE
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