From c837319767bb609c6ec806336e49a347c77b11d3 Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周五, 22 12月 2023 21:30:53 +0800
Subject: [PATCH] Add non-system-border option on Windows

---
 src/widgets/widgetwindowagent_win.cpp    |    7 +++
 src/core/style/styleagent_win.cpp        |    4 -
 src/core/CMakeLists.txt                  |    2 
 src/CMakeLists.txt                       |   10 ++++
 src/core/style/styleagent_p.h            |    4 +-
 CMakeLists.txt                           |    3 +
 src/core/windowagentbase.cpp             |    8 ++--
 src/core/style/styleagent.cpp            |   12 +++--
 src/core/contexts/win32windowcontext.cpp |   26 +++++++++++--
 9 files changed, 55 insertions(+), 21 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9cd6266..cf38ca6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,8 +12,9 @@
 option(QWINDOWKIT_BUILD_DOCUMENTATIONS "Build documentations" OFF)
 option(QWINDOWKIT_INSTALL "Install library" ON)
 
-option(QWINDOWKIT_FORCE_QT_WINDOW_CONTEXT "Enable Qt Window Context anyway" OFF)
+option(QWINDOWKIT_ENABLE_QT_WINDOW_CONTEXT "Enable Qt Window Context anyway" OFF)
 option(QWINDOWKIT_ENABLE_STYLE_AGENT "Enable building style agent" ON)
+option(QWINDOWKIT_ENABLE_WINDOWS_SYSTEM_BORDER "Disable system border on Windows" ON)
 
 # ----------------------------------
 # CMake Settings
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 739c9f8..572cb88 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -14,7 +14,15 @@
 set(QMSETUP_DEFINITION_SCOPE DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
 set(QMSETUP_DEFINITION_NUMERICAL on)
 
-qm_add_definition(QWINDOWKIT_FORCE_QT_WINDOW_CONTEXT CONDITION QWINDOWKIT_FORCE_QT_WINDOW_CONTEXT)
+qm_add_definition(QWINDOWKIT_ENABLE_QT_WINDOW_CONTEXT
+    CONDITION QWINDOWKIT_ENABLE_QT_WINDOW_CONTEXT
+)
+qm_add_definition(QWINDOWKIT_ENABLE_STYLE_AGENT
+    CONDITION QWINDOWKIT_ENABLE_STYLE_AGENT
+)
+qm_add_definition(QWINDOWKIT_ENABLE_WINDOWS_SYSTEM_BORDER
+    CONDITION QWINDOWKIT_ENABLE_WINDOWS_SYSTEM_BORDER
+)
 
 qm_generate_config(${QWINDOWKIT_BUILD_INCLUDE_DIR}/QWKCore/qwkconfig.h)
 
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 711937c..6e20cf1 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -33,7 +33,7 @@
     )
 endif()
 
-if(QWINDOWKIT_FORCE_QT_WINDOW_CONTEXT)
+if(QWINDOWKIT_ENABLE_QT_WINDOW_CONTEXT)
     list(APPEND _src
         contexts/qtwindowcontext_p.h
         contexts/qtwindowcontext.cpp
diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index bcf91f3..ea572fb 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -21,6 +21,8 @@
 #  include <QtGui/qpa/qplatformwindow_p.h>
 #endif
 
+#include <QWKCore/qwkconfig.h>
+
 #include "qwkglobal_p.h"
 #include "qwkwindowsextra_p.h"
 
@@ -55,7 +57,7 @@
 
     static inline quint32 getDpiForWindow(HWND hwnd) {
         const DynamicApis &apis = DynamicApis::instance();
-        if (apis.pGetDpiForWindow) { // Win10
+        if (apis.pGetDpiForWindow) {         // Win10
             return apis.pGetDpiForWindow(hwnd);
         } else if (apis.pGetDpiForMonitor) { // Win8.1
             HMONITOR monitor = ::MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
@@ -712,10 +714,20 @@
         auto winId = m_windowHandle->winId();
         auto hWnd = reinterpret_cast<HWND>(winId);
 
-        if (!isWin10OrGreater()) {
+#if QWINDOWKIT_CONFIG(ENABLE_WINDOWS_SYSTEM_BORDER)
+        if (!isWin10OrGreater())
+#endif
+        {
             static constexpr const MARGINS margins = {1, 1, 1, 1};
             DynamicApis::instance().pDwmExtendFrameIntoClientArea(hWnd, &margins);
         }
+
+#if !QWINDOWKIT_CONFIG(ENABLE_WINDOWS_SYSTEM_BORDER)
+        {
+            DWORD style = ::GetWindowLongW(hWnd, GWL_STYLE);
+            ::SetWindowLongW(hWnd, GWL_STYLE, style | WS_THICKFRAME | WS_CAPTION);
+        }
+#endif
 
 #if QT_VERSION < QT_VERSION_CHECK(6, 5, 0)
         for (const auto attr : {
@@ -792,7 +804,8 @@
         const auto hwnd = reinterpret_cast<HWND>(m_windowHandle->winId());
         const DynamicApis &apis = DynamicApis::instance();
         static constexpr const MARGINS extendMargins = {-1, -1, -1, -1};
-        static const auto defaultMargins = isWin10OrGreater() ? MARGINS{0, 0, 0, 0} : MARGINS{1, 1, 1, 1};
+        static const auto defaultMargins =
+            isWin10OrGreater() ? MARGINS{0, 0, 0, 0} : MARGINS{1, 1, 1, 1};
         if (key == QStringLiteral("mica")) {
             if (!isWin11OrGreater()) {
                 return false;
@@ -1459,6 +1472,7 @@
                 int frameSize = getResizeBorderThickness(hWnd);
                 bool isTop = (nativeLocalPos.y < frameSize);
 
+#if QWINDOWKIT_CONFIG(ENABLE_WINDOWS_SYSTEM_BORDER)
                 if (isWin10OrGreater()) {
                     // This will handle the left, right and bottom parts of the frame
                     // because we didn't change them.
@@ -1501,7 +1515,9 @@
                     }
                     *result = HTCLIENT;
                     return true;
-                } else {
+                } else
+#endif
+                {
                     if (full) {
                         *result = HTCLIENT;
                         return true;
@@ -1651,6 +1667,7 @@
         Q_UNUSED(message)
         Q_UNUSED(this)
 
+#if QWINDOWKIT_CONFIG(ENABLE_WINDOWS_SYSTEM_BORDER)
         // Windows鏄牴鎹繖涓秷鎭殑杩斿洖鍊兼潵璁剧疆绐楀彛鐨勫鎴峰尯锛堢獥鍙d腑鐪熸鏄剧ず鐨勫唴瀹癸級
         // 鍜岄潪瀹㈡埛鍖猴紙鏍囬鏍忋�佺獥鍙h竟妗嗐�佽彍鍗曟爮鍜岀姸鎬佹爮绛塛indows绯荤粺鑷鎻愪緵鐨勯儴鍒�
         // 锛屼笉杩囧浜嶲t鏉ヨ锛岄櫎浜嗘爣棰樻爮鍜岀獥鍙h竟妗嗭紝闈炲鎴峰尯鍩烘湰涔熼兘鏄嚜缁樼殑锛夌殑鑼�
@@ -1858,6 +1875,7 @@
                 }
             }
         }
+#endif
         // We should call this function only before the function returns.
         syncPaintEventWithDwm();
         // By returning WVR_REDRAW we can make the window resizing look
diff --git a/src/core/style/styleagent.cpp b/src/core/style/styleagent.cpp
index 6c0e740..9e6206d 100644
--- a/src/core/style/styleagent.cpp
+++ b/src/core/style/styleagent.cpp
@@ -8,7 +8,13 @@
     StyleAgentPrivate::StyleAgentPrivate() {
     }
 
-    StyleAgentPrivate::~StyleAgentPrivate() = default;
+    StyleAgentPrivate::~StyleAgentPrivate() {
+        removeSystemThemeHook();
+    }
+
+    void StyleAgentPrivate::init() {
+        setupSystemThemeHook();
+    }
 
     void StyleAgentPrivate::notifyThemeChanged(StyleAgent::SystemTheme theme) {
         if (theme == systemTheme)
@@ -20,13 +26,9 @@
     }
 
     StyleAgent::StyleAgent(QObject *parent) : StyleAgent(*new StyleAgentPrivate(), parent) {
-        Q_D(StyleAgent);
-        d->setupSystemThemeHook();
     }
 
     StyleAgent::~StyleAgent() {
-        Q_D(StyleAgent);
-        d->removeSystemThemeHook();
     }
 
     StyleAgent::SystemTheme StyleAgent::systemTheme() const {
diff --git a/src/core/style/styleagent_p.h b/src/core/style/styleagent_p.h
index 966e507..3595a9f 100644
--- a/src/core/style/styleagent_p.h
+++ b/src/core/style/styleagent_p.h
@@ -28,8 +28,8 @@
 
         StyleAgent::SystemTheme systemTheme = StyleAgent::Unknown;
 
-        virtual void setupSystemThemeHook();
-        virtual void removeSystemThemeHook();
+        void setupSystemThemeHook();
+        void removeSystemThemeHook();
 
         void notifyThemeChanged(StyleAgent::SystemTheme theme);
     };
diff --git a/src/core/style/styleagent_win.cpp b/src/core/style/styleagent_win.cpp
index 663b632..bee647a 100644
--- a/src/core/style/styleagent_win.cpp
+++ b/src/core/style/styleagent_win.cpp
@@ -85,7 +85,7 @@
 
     SystemSettingEventFilter *SystemSettingEventFilter::instance = nullptr;
 
-    void StyleAgentPrivate::init() {
+    void StyleAgentPrivate::setupSystemThemeHook() {
         if (isHighContrastModeEnabled()) {
             systemTheme = StyleAgent::HighContrast;
         } else if (isDarkThemeActive()) {
@@ -93,9 +93,7 @@
         } else {
             systemTheme = StyleAgent::Light;
         }
-    }
 
-    void StyleAgentPrivate::setupSystemThemeHook() {
         g_styleAgentSet->insert(this);
         SystemSettingEventFilter::install();
     }
diff --git a/src/core/windowagentbase.cpp b/src/core/windowagentbase.cpp
index 819dfb2..0131a60 100644
--- a/src/core/windowagentbase.cpp
+++ b/src/core/windowagentbase.cpp
@@ -5,9 +5,9 @@
 
 #include "qwkglobal_p.h"
 
-#if defined(Q_OS_WINDOWS) && !QWINDOWKIT_CONFIG(FORCE_QT_WINDOW_CONTEXT)
+#if defined(Q_OS_WINDOWS) && !QWINDOWKIT_CONFIG(ENABLE_QT_WINDOW_CONTEXT)
 #  include "win32windowcontext_p.h"
-#elif defined(Q_OS_MAC) && !QWINDOWKIT_CONFIG(FORCE_QT_WINDOW_CONTEXT)
+#elif defined(Q_OS_MAC) && !QWINDOWKIT_CONFIG(ENABLE_QT_WINDOW_CONTEXT)
 #  include "cocoawindowcontext_p.h"
 #else
 #  include "qtwindowcontext_p.h"
@@ -33,9 +33,9 @@
             return windowContextFactoryMethod();
         }
 
-#if defined(Q_OS_WINDOWS) && !QWINDOWKIT_CONFIG(FORCE_QT_WINDOW_CONTEXT)
+#if defined(Q_OS_WINDOWS) && !QWINDOWKIT_CONFIG(ENABLE_QT_WINDOW_CONTEXT)
         return new Win32WindowContext();
-#elif defined(Q_OS_MAC) && !QWINDOWKIT_CONFIG(FORCE_QT_WINDOW_CONTEXT)
+#elif defined(Q_OS_MAC) && !QWINDOWKIT_CONFIG(ENABLE_QT_WINDOW_CONTEXT)
         return new CocoaWindowContext();
 #else
         return new QtWindowContext();
diff --git a/src/widgets/widgetwindowagent_win.cpp b/src/widgets/widgetwindowagent_win.cpp
index 1305ba7..52b1a8c 100644
--- a/src/widgets/widgetwindowagent_win.cpp
+++ b/src/widgets/widgetwindowagent_win.cpp
@@ -1,5 +1,8 @@
 #include "widgetwindowagent_p.h"
 
+#include <QWKCore/qwkconfig.h>
+#include <QWKCore/qwkglobal.h>
+
 #include <QtGui/QPainter>
 
 #include <QWKCore/qwindowkit_windows.h>
@@ -7,6 +10,7 @@
 
 namespace QWK {
 
+#if QWINDOWKIT_CONFIG(ENABLE_WINDOWS_SYSTEM_BORDER)
     class WidgetBorderHandler : public QObject, public NativeEventFilter {
     public:
         explicit WidgetBorderHandler(QWidget *widget, AbstractWindowContext *ctx)
@@ -105,13 +109,16 @@
         QWidget *widget;
         AbstractWindowContext *ctx;
     };
+#endif
 
     void WidgetWindowAgentPrivate::setupWindows10BorderWorkaround() {
+#if QWINDOWKIT_CONFIG(ENABLE_WINDOWS_SYSTEM_BORDER)
         // Install painting hook
         auto ctx = context.get();
         if (ctx->property("needBorderPainter").toBool()) {
             std::ignore = new WidgetBorderHandler(hostWidget, ctx);
         }
+#endif
     }
 
 }

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