From b0249aebbacf71eee27e77c766ccb3dc33693b11 Mon Sep 17 00:00:00 2001
From: Zhao Yuhang <2546789017@qq.com>
Date: 周日, 10 12月 2023 13:54:14 +0800
Subject: [PATCH] a little simplify

---
 src/core/contexts/win32windowcontext.cpp |   95 +++++++++++++++++++++++++----------------------
 1 files changed, 50 insertions(+), 45 deletions(-)

diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index 9581b94..0f2b23f 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -60,46 +60,42 @@
 //            }
 //        };
 //
-// #define DWM_API_DECLARE(NAME) decltype(&::NAME) p##NAME = DefaultFunc<decltype(&::NAME)>::func
-#define DWM_API_DECLARE(NAME) decltype(&::NAME) p##NAME = nullptr
+// #define DYNAMIC_API_DECLARE(NAME) decltype(&::NAME) p##NAME = DefaultFunc<decltype(&::NAME)>::func
+#define DYNAMIC_API_DECLARE(NAME) decltype(&::NAME) p##NAME = nullptr
 
-        DWM_API_DECLARE(DwmFlush);
-        DWM_API_DECLARE(DwmIsCompositionEnabled);
-        DWM_API_DECLARE(DwmGetCompositionTimingInfo);
-        DWM_API_DECLARE(GetDpiForWindow);
-        DWM_API_DECLARE(GetSystemMetricsForDpi);
-        DWM_API_DECLARE(GetDpiForMonitor);
-        DWM_API_DECLARE(timeGetDevCaps);
-        DWM_API_DECLARE(timeBeginPeriod);
-        DWM_API_DECLARE(timeEndPeriod);
+        DYNAMIC_API_DECLARE(DwmFlush);
+        DYNAMIC_API_DECLARE(DwmIsCompositionEnabled);
+        DYNAMIC_API_DECLARE(DwmGetCompositionTimingInfo);
+        DYNAMIC_API_DECLARE(GetDpiForWindow);
+        DYNAMIC_API_DECLARE(GetSystemMetricsForDpi);
+        DYNAMIC_API_DECLARE(GetDpiForMonitor);
+        DYNAMIC_API_DECLARE(timeGetDevCaps);
+        DYNAMIC_API_DECLARE(timeBeginPeriod);
+        DYNAMIC_API_DECLARE(timeEndPeriod);
 
-#undef DWM_API_DECLARE
+#undef DYNAMIC_API_DECLARE
 
         DynamicApis() {
+#define DYNAMIC_API_RESOLVE(DLL, NAME) p##NAME = reinterpret_cast<decltype(p##NAME)>(DLL##.resolve(#NAME))
+
             QSystemLibrary user32(QStringLiteral("user32"));
-            pGetDpiForWindow =
-                reinterpret_cast<decltype(pGetDpiForWindow)>(user32.resolve("GetDpiForWindow"));
-            pGetSystemMetricsForDpi = reinterpret_cast<decltype(pGetSystemMetricsForDpi)>(
-                user32.resolve("GetSystemMetricsForDpi"));
+            DYNAMIC_API_RESOLVE(user32, GetDpiForWindow);
+            DYNAMIC_API_RESOLVE(user32, GetSystemMetricsForDpi);
 
             QSystemLibrary shcore(QStringLiteral("shcore"));
-            pGetDpiForMonitor =
-                reinterpret_cast<decltype(pGetDpiForMonitor)>(shcore.resolve("GetDpiForMonitor"));
+            DYNAMIC_API_RESOLVE(shcore, GetDpiForMonitor);
 
             QSystemLibrary dwmapi(QStringLiteral("dwmapi"));
-            pDwmFlush = reinterpret_cast<decltype(pDwmFlush)>(dwmapi.resolve("DwmFlush"));
-            pDwmIsCompositionEnabled = reinterpret_cast<decltype(pDwmIsCompositionEnabled)>(
-                dwmapi.resolve("DwmIsCompositionEnabled"));
-            pDwmGetCompositionTimingInfo = reinterpret_cast<decltype(pDwmGetCompositionTimingInfo)>(
-                dwmapi.resolve("DwmGetCompositionTimingInfo"));
+            DYNAMIC_API_RESOLVE(dwmapi, DwmFlush);
+            DYNAMIC_API_RESOLVE(dwmapi, DwmIsCompositionEnabled);
+            DYNAMIC_API_RESOLVE(dwmapi, DwmGetCompositionTimingInfo);
 
             QSystemLibrary winmm(QStringLiteral("winmm"));
-            ptimeGetDevCaps =
-                reinterpret_cast<decltype(ptimeGetDevCaps)>(winmm.resolve("timeGetDevCaps"));
-            ptimeBeginPeriod =
-                reinterpret_cast<decltype(ptimeBeginPeriod)>(winmm.resolve("timeBeginPeriod"));
-            ptimeEndPeriod =
-                reinterpret_cast<decltype(ptimeEndPeriod)>(winmm.resolve("timeEndPeriod"));
+            DYNAMIC_API_RESOLVE(winmm, timeGetDevCaps);
+            DYNAMIC_API_RESOLVE(winmm, timeBeginPeriod);
+            DYNAMIC_API_RESOLVE(winmm, timeEndPeriod);
+
+#undef DYNAMIC_API_RESOLVE
         }
 
         ~DynamicApis() = default;
@@ -289,7 +285,7 @@
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         if (QPlatformWindow *platformWindow = window->handle()) {
             if (const auto ni = QGuiApplication::platformNativeInterface()) {
-                ni->setWindowProperty(platformWindow, QStringLiteral("_q_windowsCustomMargins"),
+                ni->setWindowProperty(platformWindow, QStringLiteral("WindowsCustomMargins"),
                                       marginsVar);
             }
         }
@@ -476,7 +472,7 @@
         }
         ::SetMenuDefaultItem(hMenu, defaultItemId.value_or(UINT_MAX), FALSE);
 
-        ::DrawMenuBar(hWnd);
+        //::DrawMenuBar(hWnd);
 
         // Popup the system menu at the required position.
         const auto result = ::TrackPopupMenu(hMenu, (TPM_RETURNCMD | (QGuiApplication::isRightToLeft() ? TPM_RIGHTALIGN : TPM_LEFTALIGN)), pos.x, pos.y, 0, hWnd, nullptr);
@@ -764,10 +760,6 @@
             return false;
         }
 
-        if (systemMenuHandler(hWnd, message, wParam, lParam, result)) {
-            return true;
-        }
-
         // Test snap layout
         if (snapLayoutHandler(hWnd, message, wParam, lParam, result)) {
             return true;
@@ -775,6 +767,10 @@
 
         // Main implementation
         if (customWindowHandler(hWnd, message, wParam, lParam, result)) {
+            return true;
+        }
+
+        if (systemMenuHandler(hWnd, message, wParam, lParam, result)) {
             return true;
         }
 
@@ -1187,22 +1183,31 @@
                     // this is also the normal behavior of a native Win32 window (but only when the
                     // window is not maximized/fullscreen/minimized, of course).
                     if (isWindowNoState(hWnd)) {
-                        static constexpr const int kBorderSize = 2;
+                        static constexpr const auto kBorderSize = quint8{2};
                         bool isTop = (nativeLocalPos.y <= kBorderSize);
+                        bool isLeft = nativeLocalPos.x <= kBorderSize;
                         bool isRight = (nativeLocalPos.x >= (clientWidth - kBorderSize));
-                        if (isTop || isRight) {
+                        if (isTop || isLeft || isRight) {
                             if (dontOverrideCursor) {
                                 // The user doesn't want the window to be resized, so we tell
                                 // Windows we are in the client area so that the controls beneath
                                 // the mouse cursor can still be hovered or clicked.
                                 *result = (isTitleBar ? HTCAPTION : HTCLIENT);
                             } else {
-                                if (isTop && isRight) {
-                                    *result = HTTOPRIGHT;
-                                } else if (isTop) {
-                                    *result = HTTOP;
+                                if (isTop) {
+                                    if (isLeft) {
+                                        *result = HTTOPLEFT;
+                                    } else if (isRight) {
+                                        *result = HTTOPRIGHT;
+                                    } else {
+                                        *result = HTTOP;
+                                    }
                                 } else {
-                                    *result = HTRIGHT;
+                                    if (isLeft) {
+                                        *result = HTLEFT;
+                                    } else {
+                                        *result = HTRIGHT;
+                                    }
                                 }
                             }
                         }
@@ -1302,9 +1307,9 @@
                         const bool isBottom = (nativeLocalPos.y >= (clientHeight - frameSize));
                         // Make the border a little wider to let the user easy to resize on corners.
                         const auto scaleFactor = ((isTop || isBottom) ? qreal(2) : qreal(1));
-                        const int scaledFrameSizeX = std::round(qreal(frameSize) * scaleFactor);
-                        const bool isLeft = (nativeLocalPos.x < scaledFrameSizeX);
-                        const bool isRight = (nativeLocalPos.x >= (clientWidth - scaledFrameSizeX));
+                        const int scaledFrameSize = std::round(qreal(frameSize) * scaleFactor);
+                        const bool isLeft = (nativeLocalPos.x < scaledFrameSize);
+                        const bool isRight = (nativeLocalPos.x >= (clientWidth - scaledFrameSize));
                         if (dontOverrideCursor && (isTop || isBottom || isLeft || isRight)) {
                             // Return HTCLIENT instead of HTBORDER here, because the mouse is
                             // inside the window now, return HTCLIENT to let the controls

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