| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the plugins of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #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.screenPos().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 |