From 9dcea027f16c4ce5852da3dfc8aca284c582bd7d Mon Sep 17 00:00:00 2001
From: sola.lu <sola.lu.greentest.com.cn>
Date: 周五, 06 6月 2025 18:19:18 +0800
Subject: [PATCH] 1.注释掉custom margin，解决程序放大后，遮盖窗口底部内容的问题。
---
src/core/contexts/win32windowcontext.cpp | 250 ++++++++++++++++++++++++++++++-------------------
1 files changed, 151 insertions(+), 99 deletions(-)
diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index 9e4155f..9e9dc59 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -33,6 +33,18 @@
#include "qwkglobal_p.h"
#include "qwkwindowsextra_p.h"
+#if (QT_VERSION >= QT_VERSION_CHECK(6, 6, 0)) && (QT_VERSION <= QT_VERSION_CHECK(6, 6, 1))
+# error Current Qt version has a critical bug which will break QWK functionality. Please upgrade to > 6.6.1 or downgrade to < 6.6.0
+#endif
+
+#ifndef DWM_BB_ENABLE
+# define DWM_BB_ENABLE 0x00000001
+#endif
+
+#ifndef ABM_GETAUTOHIDEBAREX
+# define ABM_GETAUTOHIDEBAREX 0x0000000b
+#endif
+
namespace QWK {
enum IconButtonClickLevelFlag {
@@ -82,7 +94,10 @@
static void setInternalWindowFrameMargins(QWindow *window, const QMargins &margins) {
const QVariant marginsVar = QVariant::fromValue(margins);
- // TODO: Add comments
+ // We need to tell Qt we have set a custom margin, because we are hiding
+ // the title bar by pretending the whole window is filled by client area,
+ // this however confuses Qt's internal logic. We need to do the following
+ // hack to let Qt consider the extra margin when changing window geometry.
window->setProperty("_q_windowsCustomMargins", marginsVar);
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
if (QPlatformWindow *platformWindow = window->handle()) {
@@ -94,7 +109,7 @@
#else
if (const auto platformWindow =
dynamic_cast<QNativeInterface::Private::QWindowsWindow *>(window->handle())) {
- platformWindow->setCustomMargins(margins);
+ // platformWindow->setCustomMargins(margins);
}
#endif
}
@@ -193,8 +208,8 @@
[[maybe_unused]] const auto &cleaner =
qScopeGuard([windowThreadProcessId, currentThreadId]() {
- ::AttachThreadInput(windowThreadProcessId, currentThreadId, FALSE); //
- }); // TODO: Remove it
+ ::AttachThreadInput(windowThreadProcessId, currentThreadId, FALSE);
+ });
::BringWindowToTop(hwnd);
// Activate the window too. This will force us to the virtual desktop this
@@ -202,51 +217,6 @@
::SetActiveWindow(hwnd);
// Throw us on the active monitor.
moveWindowToMonitor(hwnd, activeMonitor);
- }
-
- static void syncPaintEventWithDwm() {
- // No need to sync with DWM if DWM composition is disabled.
- if (!isDwmCompositionEnabled()) {
- return;
- }
- const DynamicApis &apis = DynamicApis::instance();
- // Dirty hack to workaround the resize flicker caused by DWM.
- LARGE_INTEGER freq{};
- ::QueryPerformanceFrequency(&freq);
- TIMECAPS tc{};
- apis.ptimeGetDevCaps(&tc, sizeof(tc));
- const UINT ms_granularity = tc.wPeriodMin;
- apis.ptimeBeginPeriod(ms_granularity);
- LARGE_INTEGER now0{};
- ::QueryPerformanceCounter(&now0);
- // ask DWM where the vertical blank falls
- DWM_TIMING_INFO dti{};
- dti.cbSize = sizeof(dti);
- apis.pDwmGetCompositionTimingInfo(nullptr, &dti);
- LARGE_INTEGER now1{};
- ::QueryPerformanceCounter(&now1);
- // - DWM told us about SOME vertical blank
- // - past or future, possibly many frames away
- // - convert that into the NEXT vertical blank
- const auto period = qreal(dti.qpcRefreshPeriod);
- const auto dt = qreal(dti.qpcVBlank - now1.QuadPart);
- const qreal ratio = (dt / period);
- auto w = qreal(0);
- auto m = qreal(0);
- if ((dt > qreal(0)) || qFuzzyIsNull(dt)) {
- w = ratio;
- } else {
- // reach back to previous period
- // - so m represents consistent position within phase
- w = (ratio - qreal(1));
- }
- m = (dt - (period * w));
- if ((m < qreal(0)) || qFuzzyCompare(m, period) || (m > period)) {
- return;
- }
- const qreal m_ms = (qreal(1000) * m / qreal(freq.QuadPart));
- ::Sleep(static_cast<DWORD>(std::round(m_ms)));
- apis.ptimeEndPeriod(ms_granularity);
}
// Returns false if the menu is canceled
@@ -260,12 +230,20 @@
return true;
}
+ const auto windowStyles = ::GetWindowLongPtrW(hWnd, GWL_STYLE);
+ const bool allowMaximize = windowStyles & WS_MAXIMIZEBOX;
+ const bool allowMinimize = windowStyles & WS_MINIMIZEBOX;
+
const bool maxOrFull = isMaximized(hWnd) || isFullScreen(hWnd);
::EnableMenuItem(hMenu, SC_CLOSE, (MF_BYCOMMAND | MFS_ENABLED));
- ::EnableMenuItem(hMenu, SC_MAXIMIZE,
- (MF_BYCOMMAND | ((maxOrFull || fixedSize) ? MFS_DISABLED : MFS_ENABLED)));
- ::EnableMenuItem(hMenu, SC_RESTORE,
- (MF_BYCOMMAND | ((maxOrFull && !fixedSize) ? MFS_ENABLED : MFS_DISABLED)));
+ ::EnableMenuItem(
+ hMenu, SC_MAXIMIZE,
+ (MF_BYCOMMAND |
+ ((maxOrFull || fixedSize || !allowMaximize) ? MFS_DISABLED : MFS_ENABLED)));
+ ::EnableMenuItem(
+ hMenu, SC_RESTORE,
+ (MF_BYCOMMAND |
+ ((maxOrFull && !fixedSize && allowMaximize) ? MFS_ENABLED : MFS_DISABLED)));
// The first menu item should be selected by default if the menu is brought
// up by keyboard. I don't know how to pre-select a menu item but it seems
// highlight can do the job. However, there's an annoying issue if we do
@@ -277,7 +255,8 @@
// the menu look kind of weird. Currently I don't know how to fix this issue.
::HiliteMenuItem(hWnd, hMenu, SC_RESTORE,
(MF_BYCOMMAND | (selectFirstEntry ? MFS_HILITE : MFS_UNHILITE)));
- ::EnableMenuItem(hMenu, SC_MINIMIZE, (MF_BYCOMMAND | MFS_ENABLED));
+ ::EnableMenuItem(hMenu, SC_MINIMIZE,
+ (MF_BYCOMMAND | (allowMinimize ? MFS_ENABLED : MFS_DISABLED)));
::EnableMenuItem(hMenu, SC_SIZE,
(MF_BYCOMMAND | ((maxOrFull || fixedSize) ? MFS_DISABLED : MFS_ENABLED)));
::EnableMenuItem(hMenu, SC_MOVE, (MF_BYCOMMAND | (maxOrFull ? MFS_DISABLED : MFS_ENABLED)));
@@ -343,7 +322,6 @@
case HTBORDER:
return Win32WindowContext::FixedBorder;
default:
- Q_UNREACHABLE();
break;
}
return Win32WindowContext::Outside;
@@ -397,8 +375,8 @@
static MSG createMessageBlock(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
MSG msg;
- msg.hwnd = hWnd; // re-create MSG structure
- msg.message = message; // time and pt fields ignored
+ msg.hwnd = hWnd;
+ msg.message = message;
msg.wParam = wParam;
msg.lParam = lParam;
@@ -408,6 +386,8 @@
if (!isNonClientMessage(message)) {
::ScreenToClient(hWnd, &msg.pt);
}
+
+ msg.time = ::GetMessageTime();
return msg;
}
@@ -442,7 +422,7 @@
}
// Send to QAbstractEventDispatcher
- bool filterNativeEvent(MSG *msg, LRESULT *result) {
+ static bool filterNativeEvent(MSG *msg, LRESULT *result) {
auto dispatcher = QAbstractEventDispatcher::instance();
QT_NATIVE_EVENT_RESULT_TYPE filterResult = *result;
if (dispatcher && dispatcher->filterNativeEvent(nativeEventType(), msg, &filterResult)) {
@@ -453,7 +433,7 @@
}
// Send to QWindowSystemInterface
- bool filterNativeEvent(QWindow *window, MSG *msg, LRESULT *result) {
+ static bool filterNativeEvent(QWindow *window, MSG *msg, LRESULT *result) {
QT_NATIVE_EVENT_RESULT_TYPE filterResult = *result;
if (QWindowSystemInterface::handleNativeEvent(window, nativeEventType(), msg,
&filterResult)) {
@@ -666,6 +646,11 @@
// Save window handle mapping
g_wndProcHash->insert(hWnd, ctx);
+
+ // Force a WM_NCCALCSIZE message manually to avoid the title bar become visible
+ // while Qt is re-creating the window (such as setWindowFlag(s) calls). It has
+ // been observed by our users.
+ triggerFrameChange(hWnd);
}
static inline void removeManagedWindow(HWND hWnd) {
@@ -730,7 +715,7 @@
}
#if QWINDOWKIT_CONFIG(ENABLE_WINDOWS_SYSTEM_BORDERS)
- case DrawWindows10BorderHook: {
+ case DrawWindows10BorderHook_Emulated: {
if (!m_windowId)
return;
@@ -773,7 +758,7 @@
return;
}
- case DrawWindows10BorderHook2: {
+ case DrawWindows10BorderHook_Native: {
if (!m_windowId)
return;
@@ -828,6 +813,10 @@
return isSystemBorderEnabled() && !isWin11OrGreater();
}
+ if (key == QStringLiteral("windows-system-border-enabled")) {
+ return isSystemBorderEnabled();
+ }
+
if (key == QStringLiteral("border-thickness")) {
return m_windowId
? int(getWindowFrameBorderThickness(reinterpret_cast<HWND>(m_windowId)))
@@ -835,9 +824,7 @@
}
if (key == QStringLiteral("title-bar-height")) {
- return m_windowId
- ? int(getTitleBarHeight(reinterpret_cast<HWND>(m_windowId)))
- : 0;
+ return m_windowId ? int(getTitleBarHeight(reinterpret_cast<HWND>(m_windowId))) : 0;
}
return AbstractWindowContext::windowAttribute(key);
}
@@ -848,16 +835,10 @@
lastHitTestResult = WindowPart::Outside;
lastHitTestResultRaw = HTNOWHERE;
- if (!isSystemBorderEnabled()) {
- m_delegate->setWindowFlags(m_host, m_delegate->getWindowFlags(m_host) |
- Qt::FramelessWindowHint);
- }
-
// If the original window id is valid, remove all resources related
if (oldWinId) {
removeManagedWindow(reinterpret_cast<HWND>(oldWinId));
}
-
if (!winId) {
return;
}
@@ -943,17 +924,60 @@
Q_UNUSED(oldAttribute)
const auto hwnd = reinterpret_cast<HWND>(m_windowId);
+ Q_ASSERT(hwnd);
+
const DynamicApis &apis = DynamicApis::instance();
- static constexpr const MARGINS extendedMargins = {-1, -1, -1, -1};
+ const auto &extendMargins = [this, &apis, hwnd]() {
+ // For some unknown reason, the window background is totally black and extending
+ // the window frame into the client area seems to fix it magically.
+ // After many times of trying, we found that the Acrylic/Mica/Mica Alt background
+ // only appears on the native Win32 window's background, so naturally we want to
+ // extend the window frame into the whole client area to be able to let the special
+ // material fill the whole window. Previously we are using negative margins because
+ // it's widely known that using negative margins will let the window frame fill
+ // the whole window and that's indeed what we wanted to do, however, later we found
+ // that doing so is causing issues. When the user enabled the "show accent color on
+ // window title bar and borders" option on system personalize settings, a 30px bar
+ // would appear on window top. It has the same color with the system accent color.
+ // Actually it's the original title bar we've already hidden, and it magically
+ // appears again when we use negative margins to extend the window frame. And again
+ // after some experiments, I found that the title bar won't appear if we don't extend
+ // from the top side. In the end I found that we only need to extend from the left
+ // side if we extend long enough. In this way we can see the special material even
+ // when the host object is a QWidget and the title bar still remain hidden. But even
+ // though this solution seems perfect, I really don't know why it works. The following
+ // hack is totally based on experiments.
+ static constexpr const MARGINS margins = {65536, 0, 0, 0};
+ apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ };
const auto &restoreMargins = [this, &apis, hwnd]() {
auto margins = qmargins2margins(
- m_windowAttributes.value(QStringLiteral("extra-margins")).value<QMargins>());
+ windowAttribute(QStringLiteral("extra-margins")).value<QMargins>());
apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ };
+
+ const auto &effectBugWorkaround = [this, hwnd]() {
+ // We don't need the following *HACK* for QWidget windows.
+ // Completely based on actual experiments, root reason is totally unknown.
+ if (m_host->isWidgetType()) {
+ return;
+ }
+ static QSet<WId> bugWindowSet{};
+ if (bugWindowSet.contains(m_windowId)) {
+ return;
+ }
+ bugWindowSet.insert(m_windowId);
+ RECT rect{};
+ ::GetWindowRect(hwnd, &rect);
+ ::MoveWindow(hwnd, rect.left, rect.top, 1, 1, FALSE);
+ ::MoveWindow(hwnd, rect.right - 1, rect.bottom - 1, 1, 1, FALSE);
+ ::MoveWindow(hwnd, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top,
+ FALSE);
};
if (key == QStringLiteral("extra-margins")) {
auto margins = qmargins2margins(attribute.value<QMargins>());
- return apis.pDwmExtendFrameIntoClientArea(hwnd, &margins) == S_OK;
+ return SUCCEEDED(apis.pDwmExtendFrameIntoClientArea(hwnd, &margins));
}
if (key == QStringLiteral("dark-mode")) {
@@ -967,12 +991,9 @@
} else {
apis.pAllowDarkModeForApp(enable);
}
- for (const auto attr : {
- _DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1,
- _DWMWA_USE_IMMERSIVE_DARK_MODE,
- }) {
- apis.pDwmSetWindowAttribute(hwnd, attr, &enable, sizeof(enable));
- }
+ const auto attr = isWin1020H1OrGreater() ? _DWMWA_USE_IMMERSIVE_DARK_MODE
+ : _DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1;
+ apis.pDwmSetWindowAttribute(hwnd, attr, &enable, sizeof(enable));
apis.pFlushMenuThemes();
return true;
@@ -984,9 +1005,7 @@
return false;
}
if (attribute.toBool()) {
- // We need to extend the window frame into the whole client area to be able
- // to see the blurred window background.
- apis.pDwmExtendFrameIntoClientArea(hwnd, &extendedMargins);
+ extendMargins();
if (isWin1122H2OrGreater()) {
// Use official DWM API to enable Mica, available since Windows 11 22H2
// (10.0.22621).
@@ -1010,6 +1029,7 @@
}
restoreMargins();
}
+ effectBugWorkaround();
return true;
}
@@ -1018,9 +1038,7 @@
return false;
}
if (attribute.toBool()) {
- // We need to extend the window frame into the whole client area to be able
- // to see the blurred window background.
- apis.pDwmExtendFrameIntoClientArea(hwnd, &extendedMargins);
+ extendMargins();
// Use official DWM API to enable Mica Alt, available since Windows 11 22H2
// (10.0.22621).
const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_TABBEDWINDOW;
@@ -1032,6 +1050,7 @@
sizeof(backdropType));
restoreMargins();
}
+ effectBugWorkaround();
return true;
}
@@ -1040,9 +1059,7 @@
return false;
}
if (attribute.toBool()) {
- // We need to extend the window frame into the whole client area to be able
- // to see the blurred window background.
- apis.pDwmExtendFrameIntoClientArea(hwnd, &extendedMargins);
+ extendMargins();
const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_TRANSIENTWINDOW;
apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType,
@@ -1079,13 +1096,14 @@
restoreMargins();
}
+ effectBugWorkaround();
return true;
}
if (key == QStringLiteral("dwm-blur")) {
+ // Extending window frame would break this effect for some unknown reason.
+ restoreMargins();
if (attribute.toBool()) {
- // We can't extend the window frame for this effect.
- restoreMargins();
if (isWin8OrGreater()) {
ACCENT_POLICY policy{};
policy.dwAccentState = ACCENT_ENABLE_BLURBEHIND;
@@ -1118,6 +1136,7 @@
apis.pDwmEnableBlurBehindWindow(hwnd, &bb);
}
}
+ effectBugWorkaround();
return true;
}
return false;
@@ -1595,7 +1614,7 @@
bool isInTitleBar = isInTitleBarDraggableArea(qtScenePos);
WindowAgentBase::SystemButton sysButtonType = WindowAgentBase::Unknown;
bool isInCaptionButtons = isInSystemButtons(qtScenePos, &sysButtonType);
- bool dontOverrideCursor = false; // ### TODO
+ static constexpr bool dontOverrideCursor = false; // ### TODO
if (isInCaptionButtons) {
// Firstly, we set the hit test result to a default value to be able to detect
@@ -1696,7 +1715,8 @@
// outside the window, that is, the three transparent window resize area.
// Returning HTCLIENT will confuse Windows, we can't put our controls there
// anyway.
- *result = HTNOWHERE; // Make sure we can know we don't set any value explicitly later.
+ *result = HTNOWHERE; // Make sure we can know we don't set any value
+ // explicitly later.
if (originalHitTestResult == HTCAPTION) {
} else if (isFixedSize || dontOverrideCursor) {
*result = HTBORDER;
@@ -1725,11 +1745,13 @@
} else {
*result = HTLEFT;
}
- } else if (originalHitTestResult == HTLEFT || originalHitTestResult == HTRIGHT) {
+ } else if (originalHitTestResult == HTLEFT ||
+ originalHitTestResult == HTRIGHT) {
if (isFixedWidth) {
*result = HTBORDER;
}
- } else if (originalHitTestResult == HTTOP || originalHitTestResult == HTBOTTOM) {
+ } else if (originalHitTestResult == HTTOP ||
+ originalHitTestResult == HTBOTTOM) {
if (isFixedHeight) {
*result = HTBORDER;
}
@@ -1758,7 +1780,8 @@
// inside our homemade title bar now, return HTCLIENT to let our
// title bar can still capture mouse events.
*result = [&]() {
- if (isFixedSize || isFixedHeight || dontOverrideCursor || (isFixedWidth && (isInLeftBorder || isInRightBorder))) {
+ if (isFixedSize || isFixedHeight || dontOverrideCursor ||
+ (isFixedWidth && (isInLeftBorder || isInRightBorder))) {
if (isInTitleBar) {
return HTCAPTION;
} else {
@@ -1883,6 +1906,18 @@
if (windowPos->flags == kBadWindowPosFlag) {
windowPos->flags |= SWP_NOCOPYBITS;
}
+ break;
+ }
+
+ case WM_SHOWWINDOW: {
+ if (!wParam || !isWindowNoState(hWnd) || isFullScreen(hWnd)) {
+ break;
+ }
+ RECT windowRect{};
+ ::GetWindowRect(hWnd, &windowRect);
+ static constexpr const auto swpFlags = SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED | SWP_NOOWNERZORDER;
+ ::SetWindowPos(hWnd, nullptr, 0, 0, RECT_WIDTH(windowRect) + 1, RECT_HEIGHT(windowRect) + 1, swpFlags);
+ ::SetWindowPos(hWnd, nullptr, 0, 0, RECT_WIDTH(windowRect), RECT_HEIGHT(windowRect), swpFlags);
break;
}
@@ -2039,8 +2074,24 @@
// implement an elaborate client-area preservation technique, and
// simply return 0, which means "preserve the entire old client area
// and align it with the upper-left corner of our new client area".
+
const auto clientRect = wParam ? &(reinterpret_cast<LPNCCALCSIZE_PARAMS>(lParam))->rgrc[0]
: reinterpret_cast<LPRECT>(lParam);
+ [[maybe_unused]] const auto &flickerReducer = qScopeGuard([this]() {
+ // When we receive this message, it means the window size has changed
+ // already, and it seems this message always come before any client
+ // area size notifications (eg. WM_WINDOWPOSCHANGED and WM_SIZE). Let
+ // D3D/VK paint immediately to let user see the latest result as soon
+ // as possible.
+ const auto &isTargetSurface = [](const QSurface::SurfaceType st) {
+ return st != QSurface::RasterSurface && st != QSurface::OpenGLSurface &&
+ st != QSurface::RasterGLSurface && st != QSurface::OpenVGSurface;
+ };
+ if (m_windowHandle && isTargetSurface(m_windowHandle->surfaceType()) &&
+ isDwmCompositionEnabled() && DynamicApis::instance().pDwmFlush) {
+ DynamicApis::instance().pDwmFlush();
+ }
+ });
if (isSystemBorderEnabled()) {
// Store the original top margin before the default window procedure applies the
// default frame.
@@ -2162,8 +2213,6 @@
}
}
}
- // We should call this function only before the function returns.
- syncPaintEventWithDwm();
// By returning WVR_REDRAW we can make the window resizing look
// less broken. But we must return 0 if wParam is FALSE, according to Microsoft
// Docs.
@@ -2174,7 +2223,10 @@
// of the upper-left non-client area. It's confirmed that this issue exists
// from Windows 7 to Windows 10. Not tested on Windows 11 yet. Don't know
// whether it exists on Windows XP to Windows Vista or not.
- *result = wParam ? WVR_REDRAW : FALSE;
+
+ // https://github.com/chromium/chromium/blob/5d297da3cf2a642e9ace2b23fed097370bc70814/ui/views/win/hwnd_message_handler.cc#L2330
+ // Do not return WVR_REDRAW otherwise child HWNDs will be mispositioned.
+ *result = FALSE;
return true;
}
@@ -2289,7 +2341,7 @@
if (!mouseHook) {
mouseHook = ::SetWindowsHookExW(
WH_MOUSE,
- [](int nCode, WPARAM wParam, LPARAM lParam) {
+ [](int nCode, WPARAM wParam, LPARAM lParam) -> LRESULT {
if (nCode >= 0) {
switch (wParam) {
case WM_LBUTTONDBLCLK:
--
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