diff options
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbscreen.cpp')
-rw-r--r-- | src/plugins/platforms/xcb/qxcbscreen.cpp | 49 |
1 files changed, 37 insertions, 12 deletions
diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp index 952f32d806..83ffb02362 100644 --- a/src/plugins/platforms/xcb/qxcbscreen.cpp +++ b/src/plugins/platforms/xcb/qxcbscreen.cpp @@ -68,6 +68,7 @@ QXcbScreen::QXcbScreen(QXcbConnection *connection, xcb_screen_t *scr, , m_number(number) , m_refreshRate(60) , m_forcedDpi(-1) + , m_devicePixelRatio(1) , m_hintStyle(QFontEngine::HintStyle(-1)) , m_subpixelType(QFontEngine::SubpixelAntialiasingType(-1)) , m_antialiasingEnabled(-1) @@ -78,19 +79,18 @@ QXcbScreen::QXcbScreen(QXcbConnection *connection, xcb_screen_t *scr, updateGeometry(output ? output->timestamp : 0); updateRefreshRate(); - + const int dpr = int(devicePixelRatio()); // On VNC, it can be that physical size is unknown while // virtual size is known (probably back-calculated from DPI and resolution) if (m_sizeMillimeters.isEmpty()) m_sizeMillimeters = m_virtualSizeMillimeters; if (m_geometry.isEmpty()) - m_geometry = QRect(QPoint(), m_virtualSize); + m_geometry = QRect(QPoint(), m_virtualSize/dpr); if (m_availableGeometry.isEmpty()) - m_availableGeometry = QRect(QPoint(), m_virtualSize); + m_availableGeometry = m_geometry; readXResources(); - #ifdef Q_XCB_DEBUG qDebug(); qDebug("Screen output %s of xcb screen %d:", m_outputName.toUtf8().constData(), m_number); @@ -101,6 +101,7 @@ QXcbScreen::QXcbScreen(QXcbConnection *connection, xcb_screen_t *scr, qDebug(" virtual height.: %lf", m_virtualSizeMillimeters.height()); qDebug(" virtual geom...: %d x %d", m_virtualSize.width(), m_virtualSize.height()); qDebug(" avail virt geom: %d x %d +%d +%d", m_availableGeometry.width(), m_availableGeometry.height(), m_availableGeometry.x(), m_availableGeometry.y()); + qDebug(" pixel ratio....: %d", m_devicePixelRatio); qDebug(" depth..........: %d", screen()->root_depth); qDebug(" white pixel....: %x", screen()->white_pixel); qDebug(" black pixel....: %x", screen()->black_pixel); @@ -222,8 +223,9 @@ QWindow *QXcbScreen::topLevelAt(const QPoint &p) const { xcb_window_t root = m_screen->root; - int x = p.x(); - int y = p.y(); + int dpr = int(devicePixelRatio()); + int x = p.x() / dpr; + int y = p.y() / dpr; xcb_window_t parent = root; xcb_window_t child = root; @@ -314,11 +316,25 @@ QImage::Format QXcbScreen::format() const QDpi QXcbScreen::logicalDpi() const { + int dpr = int(devicePixelRatio()); + if (m_forcedDpi > 0) - return QDpi(m_forcedDpi, m_forcedDpi); + return QDpi(m_forcedDpi/dpr, m_forcedDpi/dpr); - return QDpi(Q_MM_PER_INCH * m_virtualSize.width() / m_virtualSizeMillimeters.width(), - Q_MM_PER_INCH * m_virtualSize.height() / m_virtualSizeMillimeters.height()); + return QDpi(Q_MM_PER_INCH * m_virtualSize.width() / m_virtualSizeMillimeters.width() / dpr, + Q_MM_PER_INCH * m_virtualSize.height() / m_virtualSizeMillimeters.height() / dpr); +} + + +qreal QXcbScreen::devicePixelRatio() const +{ + static int override_dpr = qgetenv("QT_DEVICE_PIXEL_RATIO").toInt(); + static bool auto_dpr = qgetenv("QT_DEVICE_PIXEL_RATIO").toLower() == "auto"; + if (override_dpr > 0) + return override_dpr; + if (auto_dpr) + return m_devicePixelRatio; + return 1.0; } QPlatformCursor *QXcbScreen::cursor() const @@ -396,12 +412,15 @@ void QXcbScreen::handleScreenChange(xcb_randr_screen_change_notify_event_t *chan void QXcbScreen::updateGeometry(xcb_timestamp_t timestamp) { + QRect xGeometry; + QRect xAvailableGeometry; + if (connection()->hasXRandr()) { xcb_randr_get_crtc_info_reply_t *crtc = xcb_randr_get_crtc_info_reply(xcb_connection(), xcb_randr_get_crtc_info_unchecked(xcb_connection(), m_crtc, timestamp), NULL); if (crtc) { - m_geometry = QRect(crtc->x, crtc->y, crtc->width, crtc->height); - m_availableGeometry = m_geometry; + xGeometry = QRect(crtc->x, crtc->y, crtc->width, crtc->height); + xAvailableGeometry = xGeometry; free(crtc); } } @@ -422,10 +441,16 @@ void QXcbScreen::updateGeometry(xcb_timestamp_t timestamp) QRect virtualAvailableGeometry(geom[0], geom[1], geom[2], geom[3]); // Take the intersection of the desktop's available geometry with this screen's geometry // to get the part of the available geometry which belongs to this screen. - m_availableGeometry = m_geometry & virtualAvailableGeometry; + xAvailableGeometry = xGeometry & virtualAvailableGeometry; } free(workArea); + qreal dpi = xGeometry.width() / physicalSize().width() * qreal(25.4); + m_devicePixelRatio = qRound(dpi/96); + const int dpr = int(devicePixelRatio()); // we may override m_devicePixelRatio + m_geometry = QRect(xGeometry.topLeft()/dpr, xGeometry.size()/dpr); + m_availableGeometry = QRect(xAvailableGeometry.topLeft()/dpr, xAvailableGeometry.size()/dpr); + QWindowSystemInterface::handleScreenAvailableGeometryChange(QPlatformScreen::screen(), m_availableGeometry); } |