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ibus: support high dpi for cursor rectangle

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on both X11/xcb and Wayland.

Following similar approach in QFcitxPlatformInputContext::cursorRectChanged()
https://github.com/fcitx/fcitx5-qt/blob/master/qt5/platforminputcontext/qfcitxplatforminputcontext.cpp#L490-L532

Tested with following configurations:
* GNOME on xorg, 100%/125%/150%/200% scale, 1 and 2 monitors
* KDE/Plasma X11, 100%/150%/200% scale, 1 monitor
* GNOME on Wayland, 100%/200% scale, 1 and 2 monitors

Enable fractional scale on GNOME:
gsettings set org.gnome.mutter experimental-features "['scale-monitor-framebuffer']"

Pick-to: 6.5 6.4 6.2 5.15
Fixes: QTBUG-103393
Change-Id: Idfd3153e4cd9f9530b4db6f089830ec47451a19e
Reviewed-by: Ilya Fedin <fedin-ilja2010@ya.ru>
Reviewed-by: Weng Xuetian <wengxt@gmail.com>
Reviewed-by: Liang Qi <liang.qi@qt.io>
This commit is contained in:
Liang Qi 2022-12-06 13:01:29 +01:00
parent 54002671bd
commit 3790821b22
1 changed files with 24 additions and 3 deletions
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27
src/plugins/platforminputcontexts/ibus/qibusplatforminputcontext.cpp
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@ -222,10 +222,31 @@ void QIBusPlatformInputContext::cursorRectChanged()
QWindow *inputWindow = qApp->focusWindow();
if (!inputWindow)
return;
r.moveTopLeft(inputWindow->mapToGlobal(r.topLeft()));
if (!inputWindow->screen())
return;
if (QGuiApplication::platformName().startsWith("wayland"_L1)) {
auto margins = inputWindow->frameMargins();
r.translate(margins.left(), margins.top());
qreal scale = inputWindow->devicePixelRatio();
QRect newRect = QRect(r.x() * scale, r.y() * scale, r.width() * scale, r.height() * scale);
if (debug)
qDebug() << "microFocus" << newRect;
d->context->SetCursorLocationRelative(newRect.x(), newRect.y(),
newRect.width(), newRect.height());
return;
}
// x11/xcb
auto screenGeometry = inputWindow->screen()->geometry();
auto point = inputWindow->mapToGlobal(r.topLeft());
qreal scale = inputWindow->devicePixelRatio();
auto native = (point - screenGeometry.topLeft()) * scale + screenGeometry.topLeft();
QRect newRect(native, r.size() * scale);
if (debug)
qDebug() << "microFocus" << r;
d->context->SetCursorLocation(r.x(), r.y(), r.width(), r.height());
qDebug() << "microFocus" << newRect;
d->context->SetCursorLocation(newRect.x(), newRect.y(),
newRect.width(), newRect.height());
}
void QIBusPlatformInputContext::setFocusObject(QObject *object)