From d522300857fd6d321e657381799804960f7f1678 Mon Sep 17 00:00:00 2001
From: Zhao Yuhang <2546789017@qq.com>
Date: 周日, 17 12月 2023 18:55:03 +0800
Subject: [PATCH] remove unused workarounds

---
 src/core/contexts/win32windowcontext.cpp |   45 ++++++++++++++++++++++++++-------------------
 1 files changed, 26 insertions(+), 19 deletions(-)

diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index 86ec6bd..f116050 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -79,16 +79,6 @@
     // Original Qt window proc function
     static WNDPROC g_qtWindowProc = nullptr;
 
-    // ### FIXME FIXME FIXME
-    // ### FIXME: Tell the user to call in the documentation, instead of automatically
-    // calling it directly.
-    // ### FIXME FIXME FIXME
-    static const struct QWK_Hook {
-        QWK_Hook() {
-            qApp->setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
-        }
-    } g_hook{};
-
     struct DynamicApis {
         static const DynamicApis &instance() {
             static const DynamicApis inst{};
@@ -114,6 +104,7 @@
         DYNAMIC_API_DECLARE(DwmIsCompositionEnabled);
         DYNAMIC_API_DECLARE(DwmGetCompositionTimingInfo);
         DYNAMIC_API_DECLARE(DwmGetWindowAttribute);
+        DYNAMIC_API_DECLARE(DwmSetWindowAttribute);
         DYNAMIC_API_DECLARE(GetDpiForWindow);
         DYNAMIC_API_DECLARE(GetSystemMetricsForDpi);
         DYNAMIC_API_DECLARE(GetDpiForMonitor);
@@ -140,6 +131,7 @@
             DYNAMIC_API_RESOLVE(dwmapi, DwmIsCompositionEnabled);
             DYNAMIC_API_RESOLVE(dwmapi, DwmGetCompositionTimingInfo);
             DYNAMIC_API_RESOLVE(dwmapi, DwmGetWindowAttribute);
+            DYNAMIC_API_RESOLVE(dwmapi, DwmSetWindowAttribute);
 
             QSystemLibrary winmm(QStringLiteral("winmm"));
             DYNAMIC_API_RESOLVE(winmm, timeGetDevCaps);
@@ -428,8 +420,8 @@
         const auto monitorInfo = getMonitorForWindow(hwnd);
         RECT windowRect{};
         ::GetWindowRect(hwnd, &windowRect);
-        const auto newX = (RECT_WIDTH(monitorInfo.rcMonitor) - RECT_WIDTH(windowRect)) / 2;
-        const auto newY = (RECT_HEIGHT(monitorInfo.rcMonitor) - RECT_HEIGHT(windowRect)) / 2;
+        const auto newX = monitorInfo.rcMonitor.left + (RECT_WIDTH(monitorInfo.rcMonitor) - RECT_WIDTH(windowRect)) / 2;
+        const auto newY = monitorInfo.rcMonitor.top + (RECT_HEIGHT(monitorInfo.rcMonitor) - RECT_HEIGHT(windowRect)) / 2;
         ::SetWindowPos(hwnd, nullptr, newX, newY, 0, 0,
                        SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOOWNERZORDER);
     }
@@ -448,6 +440,9 @@
         ::GetWindowPlacement(hwnd, &wp);
         return ((wp.showCmd == SW_NORMAL) || (wp.showCmd == SW_RESTORE));
 #else
+        if (isFullScreen(hwnd)) {
+            return false;
+        }
         const auto style = static_cast<DWORD>(::GetWindowLongPtrW(hwnd, GWL_STYLE));
         return (!(style & (WS_MINIMIZE | WS_MAXIMIZE)));
 #endif
@@ -797,7 +792,12 @@
             case ShowSystemMenuHook: {
                 const auto &pos = *static_cast<const QPoint *>(data);
                 auto hWnd = reinterpret_cast<HWND>(m_windowHandle->winId());
-                showSystemMenu2(hWnd, qpoint2point(pos), false,
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
+                const QPoint nativeGlobalPos = QHighDpi::toNativeGlobalPosition(pos, m_windowHandle);
+#else
+                const QPoint nativeGlobalPos = QHighDpi::toNativePixels(pos, m_windowHandle);
+#endif
+                showSystemMenu2(hWnd, qpoint2point(nativeGlobalPos), false,
                                 m_delegate->isHostSizeFixed(m_host));
                 return;
             }
@@ -840,7 +840,7 @@
                 }
                 painter.save();
 
-                // ### TODO: do we need to enable or disable it?
+                // We needs anti-aliasing to give us better result.
                 painter.setRenderHint(QPainter::Antialiasing);
 
                 painter.setPen(pen);
@@ -849,6 +849,7 @@
                     QPoint{m_windowHandle->width(), 0}
                 });
                 painter.restore();
+                return;
             }
 
             default: {
@@ -871,6 +872,13 @@
         // Install window hook
         auto winId = m_windowHandle->winId();
         auto hWnd = reinterpret_cast<HWND>(winId);
+
+#if QT_VERSION < QT_VERSION_CHECK(6, 5, 0)
+        for (const auto attr : { _DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1, _DWMWA_USE_IMMERSIVE_DARK_MODE }) {
+            const BOOL enable = TRUE;
+            DynamicApis::instance().pDwmSetWindowAttribute(hWnd, attr, &enable, sizeof(enable));
+        }
+#endif
 
         // Inform Qt we want and have set custom margins
         updateInternalWindowFrameMargins(hWnd, m_windowHandle);
@@ -1153,7 +1161,7 @@
                 const WindowPart currentWindowPart = lastHitTestResult;
                 if (message == WM_NCMOUSEMOVE) {
                     if (currentWindowPart != WindowPart::ChromeButton) {
-                        m_delegate->resetQtGrabbedControl();
+                        m_delegate->resetQtGrabbedControl(m_host);
                         if (mouseLeaveBlocked) {
                             emulateClientAreaMessage(hWnd, message, wParam, lParam,
                                                      WM_NCMOUSELEAVE);
@@ -1215,7 +1223,7 @@
                         // window from client area, which means we will get previous window part as
                         // HTCLIENT if the mouse leaves window from client area and enters window
                         // from non-client area, but it has no bad effect.
-                        m_delegate->resetQtGrabbedControl();
+                        m_delegate->resetQtGrabbedControl(m_host);
                     }
                 }
                 break;
@@ -1235,7 +1243,7 @@
                     // If wParam is TRUE, the window is being shown.
                     // If lParam is zero, the message was sent because of a call to the ShowWindow
                     // function.
-                    if (wParam && lParam == 0) {
+                    if (wParam && !lParam) {
                         centered = true;
                         moveToDesktopCenter(hWnd);
                     }
@@ -1541,8 +1549,7 @@
                 // we don't repaint it. This exception disappears if we add SWP_NOCOPYBITS flag.
                 // But I don't know what caused the problem, or why this would solve it.
                 const auto windowPos = reinterpret_cast<LPWINDOWPOS>(lParam);
-                if (windowPos->flags ==
-                    (SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED)) {
+                if ((windowPos->flags & SWP_FRAMECHANGED) && (windowPos->flags & SWP_NOSIZE)) {
                     windowPos->flags |= SWP_NOCOPYBITS;
                 }
                 break;

--
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