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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 "qshapedpixmapdndwindow_p.h"
#include "qplatformwindow.h"
#include <QtGui/QPainter>
#include <QtGui/QCursor>
#include <QtGui/QGuiApplication>
#include <QtGui/QPalette>
#include <QtGui/QBitmap>
QT_BEGIN_NAMESPACE
QShapedPixmapWindow::QShapedPixmapWindow(QScreen *screen)
: m_useCompositing(true)
{
setScreen(screen);
QSurfaceFormat format;
format.setAlphaBufferSize(8);
setFormat(format);
setFlags(Qt::ToolTip | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint
| Qt::WindowTransparentForInput | Qt::WindowDoesNotAcceptFocus);
}
QShapedPixmapWindow::~QShapedPixmapWindow()
{
}
void QShapedPixmapWindow::setPixmap(const QPixmap &pixmap)
{
m_pixmap = pixmap;
if (!m_useCompositing) {
const QBitmap mask = m_pixmap.mask();
if (!mask.isNull()) {
if (!handle())
create();
if (auto platformWindow = handle()) {
const auto pixmapDpr = m_pixmap.devicePixelRatio();
const auto winDpr = devicePixelRatio();
const auto maskSize = (QSizeF(m_pixmap.size()) * winDpr / pixmapDpr).toSize();
platformWindow->setMask(QBitmap::fromPixmap(mask.scaled(maskSize)));
}
}
}
}
void QShapedPixmapWindow::setHotspot(const QPoint &hotspot)
{
m_hotSpot = hotspot;
}
void QShapedPixmapWindow::paintEvent(QPaintEvent *)
{
if (!m_pixmap.isNull()) {
const QRect rect(QPoint(0, 0), size());
QPainter painter(this);
if (m_useCompositing)
painter.setCompositionMode(QPainter::CompositionMode_Source);
else
painter.fillRect(rect, QGuiApplication::palette().base());
painter.drawPixmap(rect, m_pixmap);
}
}
void QShapedPixmapWindow::updateGeometry(const QPoint &pos)
{
QSize size(1, 1);
if (!m_pixmap.isNull()) {
size = m_pixmap.deviceIndependentSize().toSize();
}
setGeometry(QRect(pos - m_hotSpot, size));
}
QT_END_NAMESPACE
#include "moc_qshapedpixmapdndwindow_p.cpp"
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