From 677e7a737897e8c2a60564085821545810369e02 Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周一, 11 12月 2023 22:43:14 +0800
Subject: [PATCH] Widgets: Add window state handler
---
src/core/contexts/win32windowcontext.cpp | 184 ++++++++++++++++++++++++++++++++++++++-------
1 files changed, 153 insertions(+), 31 deletions(-)
diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index ccc318d..ea68c0d 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -34,6 +34,27 @@
namespace QWK {
+ using _DWMWINDOWATTRIBUTE = enum _DWMWINDOWATTRIBUTE {
+ _DWMWA_USE_HOSTBACKDROPBRUSH =
+ 17, // [set] BOOL, Allows the use of host backdrop brushes for the window.
+ _DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1 =
+ 19, // Undocumented, the same with DWMWA_USE_IMMERSIVE_DARK_MODE, but available on
+ // systems before Win10 20H1.
+ _DWMWA_USE_IMMERSIVE_DARK_MODE =
+ 20, // [set] BOOL, Allows a window to either use the accent color, or dark, according to
+ // the user Color Mode preferences.
+ _DWMWA_WINDOW_CORNER_PREFERENCE = 33, // [set] WINDOW_CORNER_PREFERENCE, Controls the policy
+ // that rounds top-level window corners
+ _DWMWA_VISIBLE_FRAME_BORDER_THICKNESS =
+ 37, // [get] UINT, width of the visible border around a thick frame window
+ _DWMWA_SYSTEMBACKDROP_TYPE =
+ 38, // [get, set] SYSTEMBACKDROP_TYPE, Controls the system-drawn backdrop material of a
+ // window, including behind the non-client area.
+ _DWMWA_MICA_EFFECT =
+ 1029 // Undocumented, use this value to enable Mica material on Win11 21H2. You should
+ // use DWMWA_SYSTEMBACKDROP_TYPE instead on Win11 22H2 and newer.
+ };
+
// The thickness of an auto-hide taskbar in pixels.
static constexpr const auto kAutoHideTaskBarThickness = quint8{2};
@@ -63,23 +84,30 @@
} g_hook{};
struct DynamicApis {
-// template <typename T>
-// struct DefaultFunc;
-//
-// template <typename Return, typename... Args>
-// struct DefaultFunc<Return(QT_WIN_CALLBACK *)(Args...)> {
-// static Return STDAPICALLTYPE func(Args...) {
-// return Return{};
-// }
-// };
-//
-// #define DYNAMIC_API_DECLARE(NAME) decltype(&::NAME) p##NAME =
-// DefaultFunc<decltype(&::NAME)>::func
+ static const DynamicApis &instance() {
+ static const DynamicApis inst{};
+ return inst;
+ }
+
+ // template <typename T>
+ // struct DefaultFunc;
+ //
+ // template <typename Return, typename... Args>
+ // struct DefaultFunc<Return(QT_WIN_CALLBACK *)(Args...)> {
+ // static Return STDAPICALLTYPE func(Args...) {
+ // return Return{};
+ // }
+ // };
+ //
+ // #define DYNAMIC_API_DECLARE(NAME) decltype(&::NAME) p##NAME =
+ // DefaultFunc<decltype(&::NAME)>::func
+
#define DYNAMIC_API_DECLARE(NAME) decltype(&::NAME) p##NAME = nullptr
DYNAMIC_API_DECLARE(DwmFlush);
DYNAMIC_API_DECLARE(DwmIsCompositionEnabled);
DYNAMIC_API_DECLARE(DwmGetCompositionTimingInfo);
+ DYNAMIC_API_DECLARE(DwmGetWindowAttribute);
DYNAMIC_API_DECLARE(GetDpiForWindow);
DYNAMIC_API_DECLARE(GetSystemMetricsForDpi);
DYNAMIC_API_DECLARE(GetDpiForMonitor);
@@ -89,6 +117,7 @@
#undef DYNAMIC_API_DECLARE
+ private:
DynamicApis() {
#define DYNAMIC_API_RESOLVE(DLL, NAME) \
p##NAME = reinterpret_cast<decltype(p##NAME)>(DLL.resolve(#NAME))
@@ -104,6 +133,7 @@
DYNAMIC_API_RESOLVE(dwmapi, DwmFlush);
DYNAMIC_API_RESOLVE(dwmapi, DwmIsCompositionEnabled);
DYNAMIC_API_RESOLVE(dwmapi, DwmGetCompositionTimingInfo);
+ DYNAMIC_API_RESOLVE(dwmapi, DwmGetWindowAttribute);
QSystemLibrary winmm(QStringLiteral("winmm"));
DYNAMIC_API_RESOLVE(winmm, timeGetDevCaps);
@@ -115,12 +145,6 @@
~DynamicApis() = default;
- static const DynamicApis &instance() {
- static const DynamicApis inst{};
- return inst;
- }
-
- private:
Q_DISABLE_COPY_MOVE(DynamicApis)
};
@@ -265,6 +289,21 @@
#endif
}
+ static inline bool isDarkWindowFrameEnabled(HWND hwnd) {
+ BOOL enabled = FALSE;
+ const DynamicApis &apis = DynamicApis::instance();
+ if (SUCCEEDED(apis.pDwmGetWindowAttribute(hwnd, _DWMWA_USE_IMMERSIVE_DARK_MODE, &enabled,
+ sizeof(enabled)))) {
+ return enabled;
+ } else if (SUCCEEDED(apis.pDwmGetWindowAttribute(hwnd,
+ _DWMWA_USE_IMMERSIVE_DARK_MODE_BEFORE_20H1,
+ &enabled, sizeof(enabled)))) {
+ return enabled;
+ } else {
+ return false;
+ }
+ }
+
static inline QColor getAccentColor() {
#if QT_VERSION >= QT_VERSION_CHECK(6, 6, 0)
return QGuiApplication::palette().color(QPalette::Accent);
@@ -306,9 +345,22 @@
} else { // Win2K
HDC hdc = ::GetDC(nullptr);
const int dpiX = ::GetDeviceCaps(hdc, LOGPIXELSX);
- const int dpiY = ::GetDeviceCaps(hdc, LOGPIXELSY);
+ // const int dpiY = ::GetDeviceCaps(hdc, LOGPIXELSY);
::ReleaseDC(nullptr, hdc);
return quint32(dpiX);
+ }
+ }
+
+ static inline quint32 getWindowFrameBorderThickness(HWND hwnd) {
+ UINT result{0};
+ const DynamicApis &apis = DynamicApis::instance();
+ if (SUCCEEDED(apis.pDwmGetWindowAttribute(hwnd, _DWMWA_VISIBLE_FRAME_BORDER_THICKNESS,
+ &result, sizeof(result)))) {
+ return result;
+ } else {
+ const quint32 dpi = getDpiForWindow(hwnd);
+ result = quint32(std::round(qreal(1) * qreal(dpi) / qreal(USER_DEFAULT_SCREEN_DPI)));
+ return result;
}
}
@@ -338,11 +390,11 @@
static inline void updateInternalWindowFrameMargins(HWND hwnd, QWindow *window) {
const auto margins = [hwnd]() -> QMargins {
- const int titleBarHeight = getTitleBarHeight(hwnd);
+ const auto titleBarHeight = int(getTitleBarHeight(hwnd));
if (isWin10OrGreater()) {
return {0, -titleBarHeight, 0, 0};
} else {
- const int frameSize = getResizeBorderThickness(hwnd);
+ const auto frameSize = int(getResizeBorderThickness(hwnd));
return {-frameSize, -titleBarHeight, -frameSize, -frameSize};
}
}();
@@ -732,30 +784,81 @@
}
QString Win32WindowContext::key() const {
- return "win32";
+ return QStringLiteral("win32");
}
void Win32WindowContext::virtual_hook(int id, void *data) {
switch (id) {
+ case CentralizeHook: {
+ const auto hwnd = reinterpret_cast<HWND>(m_windowHandle->winId());
+ moveToDesktopCenter(hwnd);
+ return;
+ }
case ShowSystemMenuHook: {
- const auto &pos = *reinterpret_cast<const QPoint *>(data);
- auto winId = m_windowHandle->winId();
- auto hWnd = reinterpret_cast<HWND>(winId);
+ const auto &pos = *static_cast<const QPoint *>(data);
+ auto hWnd = reinterpret_cast<HWND>(m_windowHandle->winId());
showSystemMenu2(hWnd, qpoint2point(pos), false,
m_delegate->isHostSizeFixed(m_host));
return;
}
case NeedsDrawBordersHook: {
- auto &result = *reinterpret_cast<bool *>(data);
+ auto &result = *static_cast<bool *>(data);
result = isWin10OrGreater() && !isWin11OrGreater();
return;
}
case DrawBordersHook: {
- auto args = reinterpret_cast<void **>(data);
- auto &painter = *reinterpret_cast<QPainter *>(args[0]);
- auto &rect = *reinterpret_cast<const QRect *>(args[1]);
- auto ®ion = *reinterpret_cast<const QRegion *>(args[2]);
- // ### TODO
+ auto args = static_cast<void **>(data);
+ auto &painter = *static_cast<QPainter *>(args[0]);
+ const auto &rect = *static_cast<const QRect *>(args[1]);
+ const auto ®ion = *static_cast<const QRegion *>(args[2]);
+ const auto hwnd = reinterpret_cast<HWND>(m_windowHandle->winId());
+ QPen pen;
+ const auto borderThickness = int(QHighDpi::fromNativePixels(
+ getWindowFrameBorderThickness(hwnd), m_windowHandle));
+ pen.setWidth(borderThickness * 2);
+ const bool active = m_host->isWidgetType()
+ ? m_host->property("isActiveWindow").toBool()
+ : m_host->property("active").toBool();
+ const bool dark = isDarkThemeActive() && isDarkWindowFrameEnabled(hwnd);
+ if (active) {
+ if (isWindowFrameBorderColorized()) {
+ pen.setColor(getAccentColor());
+ } else {
+ if (dark) {
+ pen.setColor(kFrameBorderActiveColorDark);
+ } else {
+ pen.setColor(kFrameBorderActiveColorLight);
+ }
+ }
+ } else {
+ if (dark) {
+ pen.setColor(kFrameBorderInactiveColorDark);
+ } else {
+ pen.setColor(kFrameBorderInactiveColorLight);
+ }
+ }
+ painter.save();
+ painter.setRenderHint(
+ QPainter::Antialiasing); // ### TODO: do we need to enable or disable it?
+ painter.setPen(pen);
+ painter.drawLine(QLine{
+ QPoint{0, 0},
+ QPoint{rect.width(), 0}
+ });
+ painter.restore();
+ return;
+ }
+ case QueryBorderThicknessHook: {
+ auto args = static_cast<void **>(data);
+ const bool requireNative = *static_cast<const bool *>(args[0]);
+ quint32 &thickness = *static_cast<quint32 *>(args[1]);
+ const auto hwnd = reinterpret_cast<HWND>(m_windowHandle->winId());
+ const auto nativeThickness = getWindowFrameBorderThickness(hwnd);
+ if (requireNative) {
+ thickness = nativeThickness;
+ } else {
+ thickness = QHighDpi::fromNativePixels(nativeThickness, m_windowHandle);
+ }
return;
}
default: {
@@ -1127,6 +1230,7 @@
}
break;
}
+
case WM_NCHITTEST: {
// 鍘熺敓Win32绐楀彛鍙湁椤惰竟鏄湪绐楀彛鍐呴儴resize鐨勶紝鍏朵綑涓夎竟閮芥槸鍦ㄧ獥鍙�
// 澶栭儴杩涜resize鐨勶紝鍏跺師鐞嗘槸锛學S_THICKFRAME杩欎釜绐楀彛鏍峰紡浼氬湪绐�
@@ -1415,9 +1519,27 @@
return true;
}
}
+
+ case WM_WINDOWPOSCHANGING: {
+ // ### FIXME: How does this problem happen and why is it solved?
+ // When toggling the "Show theme color in title bar and window border" setting in
+ // Windows Settings, or calling `DrawMenuBar()`, Windows sends a message of
+ // WM_WINDOWPOSCHANGING with flags 0x37. If we do not process this message,
+ // the client area as a whole will shift to the left, which looks very abnormal if
+ // 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)) {
+ windowPos->flags |= SWP_NOCOPYBITS;
+ }
+ break;
+ }
+
default:
break;
}
+
if (!isWin10OrGreater()) {
switch (message) {
case WM_NCUAHDRAWCAPTION:
--
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