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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 "qfbcursor_p.h"
#include "qfbscreen_p.h"
#include <QtGui/QPainter>
#include <QtGui/private/qguiapplication_p.h>
QT_BEGIN_NAMESPACE
bool QFbCursorDeviceListener::hasMouse() const
{
return QGuiApplicationPrivate::inputDeviceManager()->deviceCount(QInputDeviceManager::DeviceTypePointer) > 0;
}
void QFbCursorDeviceListener::onDeviceListChanged(QInputDeviceManager::DeviceType type)
{
if (type == QInputDeviceManager::DeviceTypePointer)
m_cursor->updateMouseStatus();
}
QFbCursor::QFbCursor(QFbScreen *screen)
: mVisible(true),
mScreen(screen),
mDirty(false),
mOnScreen(false),
mCursorImage(nullptr),
mDeviceListener(nullptr)
{
const char *envVar = "QT_QPA_FB_HIDECURSOR";
if (qEnvironmentVariableIsSet(envVar))
mVisible = qEnvironmentVariableIntValue(envVar) == 0;
if (!mVisible)
return;
mCursorImage = new QPlatformCursorImage(0, 0, 0, 0, 0, 0);
setCursor(Qt::ArrowCursor);
mDeviceListener = new QFbCursorDeviceListener(this);
connect(QGuiApplicationPrivate::inputDeviceManager(), &QInputDeviceManager::deviceListChanged,
mDeviceListener, &QFbCursorDeviceListener::onDeviceListChanged);
updateMouseStatus();
}
QFbCursor::~QFbCursor()
{
delete mDeviceListener;
}
QRect QFbCursor::getCurrentRect() const
{
QRect rect = mCursorImage->image()->rect().translated(-mCursorImage->hotspot().x(),
-mCursorImage->hotspot().y());
rect.translate(m_pos);
QPoint mScreenOffset = mScreen->geometry().topLeft();
rect.translate(-mScreenOffset); // global to local translation
return rect;
}
QPoint QFbCursor::pos() const
{
return m_pos;
}
void QFbCursor::setPos(const QPoint &pos)
{
QGuiApplicationPrivate::inputDeviceManager()->setCursorPos(pos);
m_pos = pos;
if (!mVisible)
return;
mCurrentRect = getCurrentRect();
if (mOnScreen || mScreen->geometry().intersects(mCurrentRect.translated(mScreen->geometry().topLeft())))
setDirty();
}
void QFbCursor::pointerEvent(const QMouseEvent &e)
{
if (e.type() != QEvent::MouseMove)
return;
m_pos = e.globalPosition().toPoint();
if (!mVisible)
return;
mCurrentRect = getCurrentRect();
if (mOnScreen || mScreen->geometry().intersects(mCurrentRect.translated(mScreen->geometry().topLeft())))
setDirty();
}
QRect QFbCursor::drawCursor(QPainter & painter)
{
if (!mVisible)
return QRect();
mDirty = false;
if (mCurrentRect.isNull())
return QRect();
// We need this because the cursor might be mDirty due to moving off mScreen
QPoint mScreenOffset = mScreen->geometry().topLeft();
// global to local translation
if (!mCurrentRect.translated(mScreenOffset).intersects(mScreen->geometry()))
return QRect();
mPrevRect = mCurrentRect;
painter.drawImage(mPrevRect, *mCursorImage->image());
mOnScreen = true;
return mPrevRect;
}
QRect QFbCursor::dirtyRect()
{
if (mOnScreen) {
mOnScreen = false;
return mPrevRect;
}
return QRect();
}
void QFbCursor::setCursor(Qt::CursorShape shape)
{
if (mCursorImage)
mCursorImage->set(shape);
}
void QFbCursor::setCursor(const QImage &image, int hotx, int hoty)
{
if (mCursorImage)
mCursorImage->set(image, hotx, hoty);
}
void QFbCursor::setCursor(const uchar *data, const uchar *mask, int width, int height, int hotX, int hotY)
{
if (mCursorImage)
mCursorImage->set(data, mask, width, height, hotX, hotY);
}
#ifndef QT_NO_CURSOR
void QFbCursor::changeCursor(QCursor * widgetCursor, QWindow *window)
{
Q_UNUSED(window);
if (!mVisible)
return;
const Qt::CursorShape shape = widgetCursor ? widgetCursor->shape() : Qt::ArrowCursor;
if (shape == Qt::BitmapCursor) {
// application supplied cursor
QPoint spot = widgetCursor->hotSpot();
setCursor(widgetCursor->pixmap().toImage(), spot.x(), spot.y());
} else {
// system cursor
setCursor(shape);
}
mCurrentRect = getCurrentRect();
QPoint mScreenOffset = mScreen->geometry().topLeft(); // global to local translation
if (mOnScreen || mScreen->geometry().intersects(mCurrentRect.translated(mScreenOffset)))
setDirty();
}
#endif
void QFbCursor::setDirty()
{
if (!mVisible)
return;
if (!mDirty) {
mDirty = true;
mScreen->scheduleUpdate();
}
}
void QFbCursor::updateMouseStatus()
{
mVisible = mDeviceListener ? mDeviceListener->hasMouse() : false;
mScreen->setDirty(mVisible ? getCurrentRect() : lastPainted());
}
QT_END_NAMESPACE
#include "moc_qfbcursor_p.cpp"
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