| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtGui module of the Qt Toolkit. |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
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| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #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(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 = qFuzzyCompare(m_pixmap.devicePixelRatio(), qreal(1.0)) |
| ? m_pixmap.size() |
| : (QSizeF(m_pixmap.size()) / m_pixmap.devicePixelRatio()).toSize(); |
| } |
| setGeometry(QRect(pos - m_hotSpot, size)); |
| } |
| |
| QT_END_NAMESPACE |