diff options
Diffstat (limited to 'src/plugins/platforms/windows/qwindowswindow.cpp')
-rw-r--r-- | src/plugins/platforms/windows/qwindowswindow.cpp | 70 |
1 files changed, 61 insertions, 9 deletions
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp index d8273194fa..e700e6cff4 100644 --- a/src/plugins/platforms/windows/qwindowswindow.cpp +++ b/src/plugins/platforms/windows/qwindowswindow.cpp @@ -134,6 +134,10 @@ static QByteArray debugWinExStyle(DWORD exStyle) rc += " WS_EX_LAYERED"; if (exStyle & WS_EX_DLGMODALFRAME) rc += " WS_EX_DLGMODALFRAME"; + if (exStyle & WS_EX_LAYOUTRTL) + rc += " WS_EX_LAYOUTRTL"; + if (exStyle & WS_EX_NOINHERITLAYOUT) + rc += " WS_EX_NOINHERITLAYOUT"; return rc; } @@ -307,7 +311,7 @@ static inline QRect frameGeometry(HWND hwnd, bool topLevel) const int width = rect.right - rect.left; const int height = rect.bottom - rect.top; POINT leftTop = { rect.left, rect.top }; - ScreenToClient(parent, &leftTop); + screenToClient(parent, &leftTop); rect.left = leftTop.x; rect.top = leftTop.y; rect.right = leftTop.x + width; @@ -667,6 +671,17 @@ void WindowCreationData::fromWindow(const QWindow *w, const Qt::WindowFlags flag if ((flags & Qt::MSWindowsFixedSizeDialogHint)) dialog = true; + // This causes the title bar to drawn RTL and the close button + // to be left. Note that this causes: + // - All DCs created on the Window to have RTL layout (see SetLayout) + // - ClientToScreen() and ScreenToClient() to work in reverse as well. + // - Mouse event coordinates to be mirrored. + // - Positioning of child Windows. + if (QGuiApplication::layoutDirection() == Qt::RightToLeft + && (QWindowsIntegration::instance()->options() & QWindowsIntegration::RtlEnabled) != 0) { + exStyle |= WS_EX_LAYOUTRTL | WS_EX_NOINHERITLAYOUT; + } + // Parent: Use transient parent for top levels. if (popup) { flags |= Qt::WindowStaysOnTopHint; // a popup stays on top, no parent. @@ -772,6 +787,16 @@ QWindowsWindowData QPoint pos = calcPosition(w, context, invMargins); + // Mirror the position when creating on a parent in RTL mode, ditto for the obtained geometry. + int mirrorParentWidth = 0; + if (!w->isTopLevel() && QWindowsBaseWindow::isRtlLayout(parentHandle)) { + RECT rect; + GetClientRect(parentHandle, &rect); + mirrorParentWidth = rect.right; + } + if (mirrorParentWidth != 0 && pos.x() != CW_USEDEFAULT && context->frameWidth != CW_USEDEFAULT) + pos.setX(mirrorParentWidth - context->frameWidth - pos.x()); + result.hwnd = CreateWindowEx(exStyle, classNameUtf16, titleUtf16, style, pos.x(), pos.y(), @@ -779,14 +804,21 @@ QWindowsWindowData parentHandle, nullptr, appinst, nullptr); qCDebug(lcQpaWindows).nospace() << "CreateWindowEx: returns " << w << ' ' << result.hwnd << " obtained geometry: " - << context->obtainedGeometry << ' ' << context->margins; + << context->obtainedPos << context->obtainedSize << ' ' << context->margins; if (!result.hwnd) { qErrnoWarning("%s: CreateWindowEx failed", __FUNCTION__); return result; } - result.geometry = context->obtainedGeometry; + if (mirrorParentWidth != 0) { + context->obtainedPos.setX(mirrorParentWidth - context->obtainedSize.width() + - context->obtainedPos.x()); + } + + QRect obtainedGeometry(context->obtainedPos, context->obtainedSize); + + result.geometry = obtainedGeometry; result.fullFrameMargins = context->margins; result.embedded = embedded; result.hasFrame = hasFrame; @@ -1031,6 +1063,11 @@ bool QWindowsGeometryHint::positionIncludesFrame(const QWindow *w) \ingroup qt-lighthouse-win */ +bool QWindowsBaseWindow::isRtlLayout(HWND hwnd) +{ + return (GetWindowLongPtrW(hwnd, GWL_EXSTYLE) & WS_EX_LAYOUTRTL) != 0; +} + QWindowsBaseWindow *QWindowsBaseWindow::baseWindowOf(const QWindow *w) { if (w) { @@ -1193,7 +1230,9 @@ QWindowCreationContext::QWindowCreationContext(const QWindow *w, DWORD style, DWORD exStyle) : window(w), requestedGeometryIn(geometryIn), - requestedGeometry(geometry), obtainedGeometry(geometry), + requestedGeometry(geometry), + obtainedPos(geometryIn.topLeft()), + obtainedSize(geometryIn.size()), margins(QWindowsGeometryHint::frame(w, geometry, style, exStyle)), customMargins(cm) { @@ -1321,11 +1360,12 @@ void QWindowsWindow::initialize() // will send the message) and screen change signals of QWindow. if (w->type() != Qt::Desktop) { const Qt::WindowState state = w->windowState(); + const QRect obtainedGeometry(creationContext->obtainedPos, creationContext->obtainedSize); if (state != Qt::WindowMaximized && state != Qt::WindowFullScreen - && creationContext->requestedGeometryIn != creationContext->obtainedGeometry) { - QWindowSystemInterface::handleGeometryChange<QWindowSystemInterface::SynchronousDelivery>(w, creationContext->obtainedGeometry); + && creationContext->requestedGeometryIn != obtainedGeometry) { + QWindowSystemInterface::handleGeometryChange<QWindowSystemInterface::SynchronousDelivery>(w, obtainedGeometry); } - QPlatformScreen *obtainedScreen = screenForGeometry(creationContext->obtainedGeometry); + QPlatformScreen *obtainedScreen = screenForGeometry(obtainedGeometry); if (obtainedScreen && screen() != obtainedScreen) QWindowSystemInterface::handleWindowScreenChanged<QWindowSystemInterface::SynchronousDelivery>(w, obtainedScreen->screen()); } @@ -1942,7 +1982,16 @@ void QWindowsBaseWindow::setGeometry_sys(const QRect &rect) const windowPlacement.showCmd = windowPlacement.showCmd == SW_SHOWMINIMIZED ? SW_SHOWMINIMIZED : SW_HIDE; result = SetWindowPlacement(hwnd, &windowPlacement); } else { - result = MoveWindow(hwnd, frameGeometry.x(), frameGeometry.y(), + int x = frameGeometry.x(); + if (!window()->isTopLevel()) { + const HWND parentHandle = GetParent(hwnd); + if (isRtlLayout(parentHandle)) { + RECT rect; + GetClientRect(parentHandle, &rect); + x = rect.right - frameGeometry.width() - x; + } + } + result = MoveWindow(hwnd, x, frameGeometry.y(), frameGeometry.width(), frameGeometry.height(), true); } qCDebug(lcQpaWindows) << '<' << __FUNCTION__ << window() @@ -1958,8 +2007,11 @@ void QWindowsBaseWindow::setGeometry_sys(const QRect &rect) const HDC QWindowsWindow::getDC() { - if (!m_hdc) + if (!m_hdc) { m_hdc = GetDC(handle()); + if (QGuiApplication::layoutDirection() == Qt::RightToLeft) + SetLayout(m_hdc, 0); // Clear RTL layout + } return m_hdc; } |