From 3fbcf1aa8f91a804af50fad4e2b122f698259c94 Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周四, 09 5月 2024 23:45:28 +0800
Subject: [PATCH] Remove `isHostSizeFixed` in delegate

---
 src/widgets/widgetitemdelegate.cpp |  124 ++++++++++++++++++++++++++++++++++++++---
 1 files changed, 115 insertions(+), 9 deletions(-)

diff --git a/src/widgets/widgetitemdelegate.cpp b/src/widgets/widgetitemdelegate.cpp
index 61ed17b..b1b7f6c 100644
--- a/src/widgets/widgetitemdelegate.cpp
+++ b/src/widgets/widgetitemdelegate.cpp
@@ -1,25 +1,131 @@
+// Copyright (C) 2023-2024 Stdware Collections (https://www.github.com/stdware)
+// Copyright (C) 2021-2023 wangwenx190 (Yuhang Zhao)
+// SPDX-License-Identifier: Apache-2.0
+
 #include "widgetitemdelegate_p.h"
 
+#include <QtGui/QMouseEvent>
+#include <QtWidgets/QApplication>
 #include <QtWidgets/QWidget>
 
+#include <QWKCore/private/abstractwindowcontext_p.h>
+
+extern Q_DECL_IMPORT QWidget *qt_button_down;
+
 namespace QWK {
-    
-    WidgetItemDelegate::WidgetItemDelegate() {
+
+    class WidgetWinIdChangeEventFilter : public WinIdChangeEventFilter {
+    public:
+        explicit WidgetWinIdChangeEventFilter(QObject *host, AbstractWindowContext *ctx)
+            : WinIdChangeEventFilter(host, ctx), widget(static_cast<QWidget *>(host)) {
+            widget->installEventFilter(this);
+        }
+
+        WId winId() const override {
+            return widget->effectiveWinId();
+        }
+
+    protected:
+        bool eventFilter(QObject *obj, QEvent *event) override {
+            Q_UNUSED(obj)
+            if (event->type() == QEvent::WinIdChange) {
+                context->notifyWinIdChange();
+            }
+            return false;
+        }
+
+        QWidget *widget;
+    };
+
+    WidgetItemDelegate::WidgetItemDelegate() = default;
+
+    WidgetItemDelegate::~WidgetItemDelegate() = default;
+
+    QWindow *WidgetItemDelegate::window(const QObject *obj) const {
+        return static_cast<const QWidget *>(obj)->windowHandle();
     }
 
-    WidgetItemDelegate::~WidgetItemDelegate() {
+    bool WidgetItemDelegate::isEnabled(const QObject *obj) const {
+        return static_cast<const QWidget *>(obj)->isEnabled();
     }
 
-    QWindow *WidgetItemDelegate::window(QObject *obj) const {
-        return static_cast<QWidget *>(obj)->windowHandle();
+    bool WidgetItemDelegate::isVisible(const QObject *obj) const {
+        return static_cast<const QWidget *>(obj)->isVisible();
     }
 
-    bool WidgetItemDelegate::isEnabled(QObject *obj) const {
-        return static_cast<QWidget *>(obj)->isEnabled();
+    QRect WidgetItemDelegate::mapGeometryToScene(const QObject *obj) const {
+        auto widget = static_cast<const QWidget *>(obj);
+        const QPoint originPoint = widget->mapTo(widget->window(), QPoint(0, 0));
+        const QSize size = widget->size();
+        return {originPoint, size};
     }
 
-    bool WidgetItemDelegate::isVisible(QObject *obj) const {
-        return static_cast<QWidget *>(obj)->isVisible();
+    QWindow *WidgetItemDelegate::hostWindow(const QObject *host) const {
+        return static_cast<const QWidget *>(host)->windowHandle();
+    }
+
+    bool WidgetItemDelegate::isWindowActive(const QObject *host) const {
+        return static_cast<const QWidget *>(host)->isActiveWindow();
+    }
+
+    void WidgetItemDelegate::resetQtGrabbedControl(QObject *host) const {
+        Q_UNUSED(host);
+        if (!qt_button_down) {
+            return;
+        }
+        static constexpr const auto invalidPos =
+            QPoint{std::numeric_limits<int>::lowest(), std::numeric_limits<int>::lowest()};
+        const auto event = new QMouseEvent(
+            QEvent::MouseButtonRelease, invalidPos, invalidPos, invalidPos, Qt::LeftButton,
+            QGuiApplication::mouseButtons() ^ Qt::LeftButton, QGuiApplication::keyboardModifiers());
+        QCoreApplication::postEvent(qt_button_down, event);
+        qt_button_down = nullptr;
+    }
+
+    Qt::WindowStates WidgetItemDelegate::getWindowState(const QObject *host) const {
+        return static_cast<const QWidget *>(host)->windowState();
+    }
+
+    void WidgetItemDelegate::setWindowState(QObject *host, Qt::WindowStates state) const {
+        static_cast<QWidget *>(host)->setWindowState(state);
+    }
+
+    void WidgetItemDelegate::setCursorShape(QObject *host, Qt::CursorShape shape) const {
+        static_cast<QWidget *>(host)->setCursor(QCursor(shape));
+    }
+
+    void WidgetItemDelegate::restoreCursorShape(QObject *host) const {
+        static_cast<QWidget *>(host)->unsetCursor();
+    }
+
+    Qt::WindowFlags WidgetItemDelegate::getWindowFlags(const QObject *host) const {
+        return static_cast<const QWidget *>(host)->windowFlags();
+    }
+
+    QRect WidgetItemDelegate::getGeometry(const QObject *host) const {
+        return static_cast<const QWidget *>(host)->geometry();
+    }
+
+    void WidgetItemDelegate::setWindowFlags(QObject *host, Qt::WindowFlags flags) const {
+        static_cast<QWidget *>(host)->setWindowFlags(flags);
+    }
+
+    void WidgetItemDelegate::setWindowVisible(QObject *host, bool visible) const {
+        static_cast<QWidget *>(host)->setVisible(visible);
+    }
+
+    void WidgetItemDelegate::setGeometry(QObject *host, const QRect &rect) {
+        static_cast<QWidget *>(host)->setGeometry(rect);
+    }
+
+    void WidgetItemDelegate::bringWindowToTop(QObject *host) const {
+        static_cast<QWidget *>(host)->raise();
+    }
+
+    WinIdChangeEventFilter *
+        WidgetItemDelegate::createWinIdEventFilter(QObject *host,
+                                                   AbstractWindowContext *context) const {
+        return new WidgetWinIdChangeEventFilter(host, context);
     }
 
 }
\ No newline at end of file

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