彻底改版2.0

widget/framelesswidget/framelesscore/framelesscore.pri

@@ -0,0 +1,9 @@
+HEADERS += \
+    $$PWD/framelessdialog.h \
+    $$PWD/framelessmainwindow.h \
+    $$PWD/framelesswidget.h
+
+SOURCES += \
+    $$PWD/framelessdialog.cpp \
+    $$PWD/framelessmainwindow.cpp \
+    $$PWD/framelesswidget.cpp

widget/framelesswidget/framelesscore/framelessdialog.cpp

@@ -0,0 +1,373 @@
+#include "framelessdialog.h"
+#include "qdatetime.h"
+#include "qevent.h"
+#include "qdebug.h"
+
+#ifdef Q_OS_WIN
+#include "windows.h"
+#include "windowsx.h"
+#pragma comment (lib,"user32.lib")
+#endif
+
+#define TIMEMS qPrintable(QTime::currentTime().toString("HH:mm:ss zzz"))
+
+FramelessDialog::FramelessDialog(QWidget *parent) : QDialog(parent)
+{
+    padding = 8;
+    moveEnable = true;
+    resizeEnable = true;
+
+    mousePressed = false;
+    mousePoint = QPoint(0, 0);
+    mouseRect = QRect(0, 0, 0, 0);
+
+    for (int i = 0; i < 8; ++i) {
+        pressedArea << false;
+        pressedRect << QRect(0, 0, 0, 0);
+    }
+
+    isMin = false;
+    flags = this->windowFlags();
+    titleBar = 0;
+
+    //设置背景透明 官方在5.3以后才彻底修复 WA_TranslucentBackground+FramelessWindowHint 并存不绘制的BUG
+#if (QT_VERSION >= QT_VERSION_CHECK(5,3,0))
+    this->setAttribute(Qt::WA_TranslucentBackground);
+#endif
+    //设置无边框属性
+    this->setWindowFlags(flags | Qt::FramelessWindowHint);
+    //安装事件过滤器识别拖动
+    this->installEventFilter(this);
+
+    //设置属性产生win窗体效果,移动到边缘半屏或者最大化等
+    //设置以后会产生标题栏需要在下面拦截消息重新去掉
+#ifdef Q_OS_WIN
+    HWND hwnd = (HWND)this->winId();
+    DWORD style = ::GetWindowLong(hwnd, GWL_STYLE);
+    ::SetWindowLong(hwnd, GWL_STYLE, style | WS_MAXIMIZEBOX | WS_THICKFRAME | WS_CAPTION);
+#endif
+}
+
+void FramelessDialog::showEvent(QShowEvent *event)
+{
+    //解决有时候窗体重新显示的时候假死不刷新的BUG
+    setAttribute(Qt::WA_Mapped);
+    QDialog::showEvent(event);
+}
+
+void FramelessDialog::doWindowStateChange(QEvent *event)
+{
+    //非最大化才能移动和拖动大小
+    if (windowState() == Qt::WindowNoState) {
+        moveEnable = true;
+        resizeEnable = true;
+    } else {
+        moveEnable = false;
+        resizeEnable = false;
+    }
+
+    //发出最大化最小化等改变事件,以便界面上更改对应的信息比如右上角图标和文字
+    emit windowStateChange(!moveEnable);
+
+    //解决mac系统上无边框最小化失效的BUG
+#ifdef Q_OS_MACOS
+    if (windowState() & Qt::WindowMinimized) {
+        isMin = true;
+    } else {
+        if (isMin) {
+            //设置无边框属性
+            this->setWindowFlags(flags | Qt::FramelessWindowHint);
+            this->setVisible(true);
+            isMin = false;
+        }
+    }
+#endif
+}
+
+void FramelessDialog::doResizeEvent(QEvent *event)
+{
+    //非win系统的无边框拉伸,win系统上已经采用了nativeEvent来处理拉伸
+    //为何不统一用计算的方式因为在win上用这个方式往左拉伸会发抖妹的
+#ifndef Q_OS_WIN
+    if (event->type() == QEvent::Resize) {
+        //重新计算八个描点的区域,描点区域的作用还有就是计算鼠标坐标是否在某一个区域内
+        int width = this->width();
+        int height = this->height();
+
+        //左侧描点区域
+        pressedRect[0] = QRect(0, padding, padding, height - padding * 2);
+        //右侧描点区域
+        pressedRect[1] = QRect(width - padding, padding, padding, height - padding * 2);
+        //上侧描点区域
+        pressedRect[2] = QRect(padding, 0, width - padding * 2, padding);
+        //下侧描点区域
+        pressedRect[3] = QRect(padding, height - padding, width - padding * 2, padding);
+
+        //左上角描点区域
+        pressedRect[4] = QRect(0, 0, padding, padding);
+        //右上角描点区域
+        pressedRect[5] = QRect(width - padding, 0, padding, padding);
+        //左下角描点区域
+        pressedRect[6] = QRect(0, height - padding, padding, padding);
+        //右下角描点区域
+        pressedRect[7] = QRect(width - padding, height - padding, padding, padding);
+    } else if (event->type() == QEvent::HoverMove) {
+        //设置对应鼠标形状,这个必须放在这里而不是下面,因为可以在鼠标没有按下的时候识别
+        QHoverEvent *hoverEvent = (QHoverEvent *)event;
+        QPoint point = hoverEvent->pos();
+        if (resizeEnable) {
+            if (pressedRect.at(0).contains(point)) {
+                this->setCursor(Qt::SizeHorCursor);
+            } else if (pressedRect.at(1).contains(point)) {
+                this->setCursor(Qt::SizeHorCursor);
+            } else if (pressedRect.at(2).contains(point)) {
+                this->setCursor(Qt::SizeVerCursor);
+            } else if (pressedRect.at(3).contains(point)) {
+                this->setCursor(Qt::SizeVerCursor);
+            } else if (pressedRect.at(4).contains(point)) {
+                this->setCursor(Qt::SizeFDiagCursor);
+            } else if (pressedRect.at(5).contains(point)) {
+                this->setCursor(Qt::SizeBDiagCursor);
+            } else if (pressedRect.at(6).contains(point)) {
+                this->setCursor(Qt::SizeBDiagCursor);
+            } else if (pressedRect.at(7).contains(point)) {
+                this->setCursor(Qt::SizeFDiagCursor);
+            } else {
+                this->setCursor(Qt::ArrowCursor);
+            }
+        }
+
+        //根据当前鼠标位置,计算XY轴移动了多少
+        int offsetX = point.x() - mousePoint.x();
+        int offsetY = point.y() - mousePoint.y();
+
+        //根据按下处的位置判断是否是移动控件还是拉伸控件
+        if (moveEnable && mousePressed) {
+            this->move(this->x() + offsetX, this->y() + offsetY);
+        }
+
+        if (resizeEnable) {
+            int rectX = mouseRect.x();
+            int rectY = mouseRect.y();
+            int rectW = mouseRect.width();
+            int rectH = mouseRect.height();
+
+            if (pressedArea.at(0)) {
+                int resizeW = this->width() - offsetX;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, rectY, resizeW, rectH);
+                }
+            } else if (pressedArea.at(1)) {
+                this->setGeometry(rectX, rectY, rectW + offsetX, rectH);
+            } else if (pressedArea.at(2)) {
+                int resizeH = this->height() - offsetY;
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(rectX, this->y() + offsetY, rectW, resizeH);
+                }
+            } else if (pressedArea.at(3)) {
+                this->setGeometry(rectX, rectY, rectW, rectH + offsetY);
+            } else if (pressedArea.at(4)) {
+                int resizeW = this->width() - offsetX;
+                int resizeH = this->height() - offsetY;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, this->y(), resizeW, resizeH);
+                }
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y() + offsetY, resizeW, resizeH);
+                }
+            } else if (pressedArea.at(5)) {
+                int resizeW = rectW + offsetX;
+                int resizeH = this->height() - offsetY;
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y() + offsetY, resizeW, resizeH);
+                }
+            } else if (pressedArea.at(6)) {
+                int resizeW = this->width() - offsetX;
+                int resizeH = rectH + offsetY;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, this->y(), resizeW, resizeH);
+                }
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y(), resizeW, resizeH);
+                }
+            } else if (pressedArea.at(7)) {
+                int resizeW = rectW + offsetX;
+                int resizeH = rectH + offsetY;
+                this->setGeometry(this->x(), this->y(), resizeW, resizeH);
+            }
+        }
+    } else if (event->type() == QEvent::MouseButtonPress) {
+        //记住鼠标按下的坐标+窗体区域
+        QMouseEvent *mouseEvent = (QMouseEvent *)event;
+        mousePoint = mouseEvent->pos();
+        mouseRect = this->geometry();
+
+        //判断按下的手柄的区域位置
+        if (pressedRect.at(0).contains(mousePoint)) {
+            pressedArea[0] = true;
+        } else if (pressedRect.at(1).contains(mousePoint)) {
+            pressedArea[1] = true;
+        } else if (pressedRect.at(2).contains(mousePoint)) {
+            pressedArea[2] = true;
+        } else if (pressedRect.at(3).contains(mousePoint)) {
+            pressedArea[3] = true;
+        } else if (pressedRect.at(4).contains(mousePoint)) {
+            pressedArea[4] = true;
+        } else if (pressedRect.at(5).contains(mousePoint)) {
+            pressedArea[5] = true;
+        } else if (pressedRect.at(6).contains(mousePoint)) {
+            pressedArea[6] = true;
+        } else if (pressedRect.at(7).contains(mousePoint)) {
+            pressedArea[7] = true;
+        } else {
+            mousePressed = true;
+        }
+    } else if (event->type() == QEvent::MouseMove) {
+        //改成用HoverMove识别
+    } else if (event->type() == QEvent::MouseButtonRelease) {
+        //恢复所有
+        this->setCursor(Qt::ArrowCursor);
+        mousePressed = false;
+        for (int i = 0; i < 8; ++i) {
+            pressedArea[i] = false;
+        }
+    }
+#endif
+}
+
+bool FramelessDialog::eventFilter(QObject *watched, QEvent *event)
+{
+    if (watched == this) {
+        if (event->type() == QEvent::WindowStateChange) {
+            doWindowStateChange(event);
+        } else {
+            doResizeEvent(event);
+        }
+    } else if (watched == titleBar) {
+        //双击标题栏发出双击信号给主界面
+        //下面的 *result = HTCAPTION; 标志位也会自动识别双击标题栏
+#ifndef Q_OS_WIN
+        if (event->type() == QEvent::MouseButtonDblClick) {
+            emit titleDblClick();
+        } else if (event->type() == QEvent::NonClientAreaMouseButtonDblClick) {
+            emit titleDblClick();
+        }
+#endif
+    }
+
+    return QDialog::eventFilter(watched, event);
+}
+
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
+bool FramelessDialog::nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
+#else
+bool FramelessDialog::nativeEvent(const QByteArray &eventType, void *message, long *result)
+#endif
+{
+    if (eventType == "windows_generic_MSG") {
+#ifdef Q_OS_WIN
+        MSG *msg = static_cast<MSG *>(message);
+        //qDebug() << TIMEMS << "nativeEvent" << msg->wParam << msg->message;
+
+        //不同的消息类型和参数进行不同的处理
+        if (msg->message == WM_NCCALCSIZE) {
+            *result = 0;
+            return true;
+        } else if (msg->message == WM_NCHITTEST) {
+            //计算鼠标对应的屏幕坐标
+            //这里最开始用的 LOWORD HIWORD 在多屏幕的时候会有问题
+            //官方说明在这里 https://docs.microsoft.com/zh-cn/windows/win32/inputdev/wm-nchittest
+            long x = GET_X_LPARAM(msg->lParam);
+            long y = GET_Y_LPARAM(msg->lParam);
+            QPoint pos = mapFromGlobal(QPoint(x, y));
+
+            //判断当前鼠标位置在哪个区域
+            bool left = pos.x() < padding;
+            bool right = pos.x() > width() - padding;
+            bool top = pos.y() < padding;
+            bool bottom = pos.y() > height() - padding;
+
+            //鼠标移动到四个角,这个消息是当鼠标移动或者有鼠标键按下时候发出的
+            *result = 0;
+            if (resizeEnable) {
+                if (left && top) {
+                    *result = HTTOPLEFT;
+                } else if (left && bottom) {
+                    *result = HTBOTTOMLEFT;
+                } else if (right && top) {
+                    *result = HTTOPRIGHT;
+                } else if (right && bottom) {
+                    *result = HTBOTTOMRIGHT;
+                } else if (left) {
+                    *result = HTLEFT;
+                } else if (right) {
+                    *result = HTRIGHT;
+                } else if (top) {
+                    *result = HTTOP;
+                } else if (bottom) {
+                    *result = HTBOTTOM;
+                }
+            }
+
+            //先处理掉拉伸
+            if (0 != *result) {
+                return true;
+            }
+
+            //识别标题栏拖动产生半屏全屏效果
+            if (titleBar != 0 && titleBar->rect().contains(pos)) {
+                QWidget *child = titleBar->childAt(pos);
+                if (!child) {
+                    *result = HTCAPTION;
+                    return true;
+                }
+            }
+        } else if (msg->wParam == PBT_APMSUSPEND && msg->message == WM_POWERBROADCAST) {
+            //系统休眠的时候自动最小化可以规避程序可能出现的问题
+            this->showMinimized();
+        } else if (msg->wParam == PBT_APMRESUMEAUTOMATIC) {
+            //休眠唤醒后自动打开
+            this->showNormal();
+        }
+#endif
+    } else if (eventType == "NSEvent") {
+#ifdef Q_OS_MACOS
+#endif
+    } else if (eventType == "xcb_generic_event_t") {
+#ifdef Q_OS_LINUX
+#endif
+    }
+    return false;
+}
+
+#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
+#ifdef Q_OS_WIN
+bool FramelessDialog::winEvent(MSG *message, long *result)
+{
+    return nativeEvent("windows_generic_MSG", message, result);
+}
+#endif
+#endif
+
+void FramelessDialog::setPadding(int padding)
+{
+    this->padding = padding;
+}
+
+void FramelessDialog::setMoveEnable(bool moveEnable)
+{
+    this->moveEnable = moveEnable;
+}
+
+void FramelessDialog::setResizeEnable(bool resizeEnable)
+{
+    this->resizeEnable = resizeEnable;
+}
+
+void FramelessDialog::setTitleBar(QWidget *titleBar)
+{
+    this->titleBar = titleBar;
+    this->titleBar->installEventFilter(this);
+}
+
+

widget/framelesswidget/framelesscore/framelessdialog.h

@@ -0,0 +1,96 @@
+#ifndef FRAMELESSDIALOG_H
+#define FRAMELESSDIALOG_H
+
+/**
+ * 无边框窗体类 作者:feiyangqingyun(QQ:517216493) 2021-07-27
+ * 1. 同时支持Qt4-Qt6，亲测Qt4.7到Qt6.2。
+ * 2. 同时支持mingw、msvc、gcc等。
+ * 3. 同时支持windows、linux、mac。
+ * 4. 同时支持QMainWindow、QWidget、QDialog。
+ * 5. 使用方法极其简单，只需要将继承类修改即可。
+ * 6. 自动识别双击标题栏响应。
+ * 7. 无边框拉伸在windows下不抖动。
+ * 8. 在windows下具有移动到边缘半屏、移动到顶部全屏特性。
+ * 9. 解决mac系统上无边框最小化最大化失效的BUG。
+ * 10. 解决系统休眠后再次启动程序懵逼的BUG。
+ * 11. 解决有时候窗体重新显示的时候假死不刷新的BUG。
+ * 12. 轻量级，1个代码文件，核心代码行数不到300行。
+ * 13. 注释详细，示例完美，非常适合阅读和学习。
+ * 14. 开源开箱即用，保证任意Qt版本可正常编译运行，无需任何调整。
+ */
+
+#include <QDialog>
+
+#ifdef quc
+class Q_DECL_EXPORT FramelessDialog : public QDialog
+#else
+class FramelessDialog : public QDialog
+#endif
+
+{
+    Q_OBJECT
+public:
+    explicit FramelessDialog(QWidget *parent = 0);
+
+protected:
+    //窗体显示的时候触发
+    void showEvent(QShowEvent *event);
+
+    //事件过滤器识别拖动拉伸等
+    void doWindowStateChange(QEvent *event);
+    void doResizeEvent(QEvent *event);
+    bool eventFilter(QObject *watched, QEvent *event);
+
+    //拦截系统事件用于修复系统休眠后唤醒程序的BUG
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
+    bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result);
+#else
+    bool nativeEvent(const QByteArray &eventType, void *message, long *result);
+#endif
+
+    //Qt4的写法
+#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
+#ifdef Q_OS_WIN
+    bool winEvent(MSG *message, long *result);
+#endif
+#endif
+
+private:
+    //边距+可移动+可拉伸
+    int padding;
+    bool moveEnable;
+    bool resizeEnable;
+
+    //标题栏控件
+    QWidget *titleBar;
+
+    //鼠标是否按下+按下坐标+按下时窗体区域
+    bool mousePressed;
+    QPoint mousePoint;
+    QRect mouseRect;
+
+    //鼠标是否按下某个区域+按下区域的大小
+    //依次为 左侧+右侧+上侧+下侧+左上侧+右上侧+左下侧+右下侧
+    QList<bool> pressedArea;
+    QList<QRect> pressedRect;
+
+    //记录是否最小化
+    bool isMin;
+    //存储窗体默认的属性
+    Qt::WindowFlags flags;
+
+public Q_SLOTS:
+    //设置边距+可拖动+可拉伸
+    void setPadding(int padding);
+    void setMoveEnable(bool moveEnable);
+    void setResizeEnable(bool resizeEnable);
+
+    //设置标题栏控件
+    void setTitleBar(QWidget *titleBar);
+
+Q_SIGNALS:
+    void titleDblClick();
+    void windowStateChange(bool max);
+};
+
+#endif // FRAMELESSDIALOG_H

widget/framelesswidget/framelesscore/framelessmainwindow.cpp

@@ -0,0 +1,371 @@
+#include "framelessmainwindow.h"
+#include "qdatetime.h"
+#include "qevent.h"
+#include "qdebug.h"
+
+#ifdef Q_OS_WIN
+#include "windows.h"
+#include "windowsx.h"
+#pragma comment (lib,"user32.lib")
+#endif
+
+#define TIMEMS qPrintable(QTime::currentTime().toString("HH:mm:ss zzz"))
+
+FramelessMainWindow::FramelessMainWindow(QWidget *parent) : QMainWindow(parent)
+{
+    padding = 8;
+    moveEnable = true;
+    resizeEnable = true;
+
+    mousePressed = false;
+    mousePoint = QPoint(0, 0);
+    mouseRect = QRect(0, 0, 0, 0);
+
+    for (int i = 0; i < 8; ++i) {
+        pressedArea << false;
+        pressedRect << QRect(0, 0, 0, 0);
+    }
+
+    isMin = false;
+    flags = this->windowFlags();
+    titleBar = 0;
+
+    //设置背景透明 官方在5.3以后才彻底修复 WA_TranslucentBackground+FramelessWindowHint 并存不绘制的BUG
+#if (QT_VERSION >= QT_VERSION_CHECK(5,3,0))
+    this->setAttribute(Qt::WA_TranslucentBackground);
+#endif
+    //设置无边框属性
+    this->setWindowFlags(flags | Qt::FramelessWindowHint);
+    //安装事件过滤器识别拖动
+    this->installEventFilter(this);
+
+    //设置属性产生win窗体效果,移动到边缘半屏或者最大化等
+    //设置以后会产生标题栏,需要在下面拦截消息WM_NCCALCSIZE重新去掉
+#ifdef Q_OS_WIN
+    HWND hwnd = (HWND)this->winId();
+    DWORD style = ::GetWindowLong(hwnd, GWL_STYLE);
+    ::SetWindowLong(hwnd, GWL_STYLE, style | WS_MAXIMIZEBOX | WS_THICKFRAME | WS_CAPTION);
+#endif
+}
+
+void FramelessMainWindow::showEvent(QShowEvent *event)
+{
+    //解决有时候窗体重新显示的时候假死不刷新的BUG
+    setAttribute(Qt::WA_Mapped);
+    QMainWindow::showEvent(event);
+}
+
+void FramelessMainWindow::doWindowStateChange(QEvent *event)
+{
+    //非最大化才能移动和拖动大小
+    if (windowState() == Qt::WindowNoState) {
+        moveEnable = true;
+        resizeEnable = true;
+    } else {
+        moveEnable = false;
+        resizeEnable = false;
+    }
+
+    //发出最大化最小化等改变事件,以便界面上更改对应的信息比如右上角图标和文字
+    emit windowStateChange(!moveEnable);
+
+    //解决mac系统上无边框最小化失效的BUG
+#ifdef Q_OS_MACOS
+    if (windowState() & Qt::WindowMinimized) {
+        isMin = true;
+    } else {
+        if (isMin) {
+            //设置无边框属性
+            this->setWindowFlags(flags | Qt::FramelessWindowHint);
+            this->setVisible(true);
+            isMin = false;
+        }
+    }
+#endif
+}
+
+void FramelessMainWindow::doResizeEvent(QEvent *event)
+{
+    //非win系统的无边框拉伸,win系统上已经采用了nativeEvent来处理拉伸
+    //为何不统一用计算的方式因为在win上用这个方式往左拉伸会发抖妹的
+#ifndef Q_OS_WIN
+    if (event->type() == QEvent::Resize) {
+        //重新计算八个描点的区域,描点区域的作用还有就是计算鼠标坐标是否在某一个区域内
+        int width = this->width();
+        int height = this->height();
+
+        //左侧描点区域
+        pressedRect[0] = QRect(0, padding, padding, height - padding * 2);
+        //右侧描点区域
+        pressedRect[1] = QRect(width - padding, padding, padding, height - padding * 2);
+        //上侧描点区域
+        pressedRect[2] = QRect(padding, 0, width - padding * 2, padding);
+        //下侧描点区域
+        pressedRect[3] = QRect(padding, height - padding, width - padding * 2, padding);
+
+        //左上角描点区域
+        pressedRect[4] = QRect(0, 0, padding, padding);
+        //右上角描点区域
+        pressedRect[5] = QRect(width - padding, 0, padding, padding);
+        //左下角描点区域
+        pressedRect[6] = QRect(0, height - padding, padding, padding);
+        //右下角描点区域
+        pressedRect[7] = QRect(width - padding, height - padding, padding, padding);
+    } else if (event->type() == QEvent::HoverMove) {
+        //设置对应鼠标形状,这个必须放在这里而不是下面,因为可以在鼠标没有按下的时候识别
+        QHoverEvent *hoverEvent = (QHoverEvent *)event;
+        QPoint point = hoverEvent->pos();
+        if (resizeEnable) {
+            if (pressedRect.at(0).contains(point)) {
+                this->setCursor(Qt::SizeHorCursor);
+            } else if (pressedRect.at(1).contains(point)) {
+                this->setCursor(Qt::SizeHorCursor);
+            } else if (pressedRect.at(2).contains(point)) {
+                this->setCursor(Qt::SizeVerCursor);
+            } else if (pressedRect.at(3).contains(point)) {
+                this->setCursor(Qt::SizeVerCursor);
+            } else if (pressedRect.at(4).contains(point)) {
+                this->setCursor(Qt::SizeFDiagCursor);
+            } else if (pressedRect.at(5).contains(point)) {
+                this->setCursor(Qt::SizeBDiagCursor);
+            } else if (pressedRect.at(6).contains(point)) {
+                this->setCursor(Qt::SizeBDiagCursor);
+            } else if (pressedRect.at(7).contains(point)) {
+                this->setCursor(Qt::SizeFDiagCursor);
+            } else {
+                this->setCursor(Qt::ArrowCursor);
+            }
+        }
+
+        //根据当前鼠标位置,计算XY轴移动了多少
+        int offsetX = point.x() - mousePoint.x();
+        int offsetY = point.y() - mousePoint.y();
+
+        //根据按下处的位置判断是否是移动控件还是拉伸控件
+        if (moveEnable && mousePressed) {
+            this->move(this->x() + offsetX, this->y() + offsetY);
+        }
+
+        if (resizeEnable) {
+            int rectX = mouseRect.x();
+            int rectY = mouseRect.y();
+            int rectW = mouseRect.width();
+            int rectH = mouseRect.height();
+
+            if (pressedArea.at(0)) {
+                int resizeW = this->width() - offsetX;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, rectY, resizeW, rectH);
+                }
+            } else if (pressedArea.at(1)) {
+                this->setGeometry(rectX, rectY, rectW + offsetX, rectH);
+            } else if (pressedArea.at(2)) {
+                int resizeH = this->height() - offsetY;
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(rectX, this->y() + offsetY, rectW, resizeH);
+                }
+            } else if (pressedArea.at(3)) {
+                this->setGeometry(rectX, rectY, rectW, rectH + offsetY);
+            } else if (pressedArea.at(4)) {
+                int resizeW = this->width() - offsetX;
+                int resizeH = this->height() - offsetY;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, this->y(), resizeW, resizeH);
+                }
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y() + offsetY, resizeW, resizeH);
+                }
+            } else if (pressedArea.at(5)) {
+                int resizeW = rectW + offsetX;
+                int resizeH = this->height() - offsetY;
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y() + offsetY, resizeW, resizeH);
+                }
+            } else if (pressedArea.at(6)) {
+                int resizeW = this->width() - offsetX;
+                int resizeH = rectH + offsetY;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, this->y(), resizeW, resizeH);
+                }
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y(), resizeW, resizeH);
+                }
+            } else if (pressedArea.at(7)) {
+                int resizeW = rectW + offsetX;
+                int resizeH = rectH + offsetY;
+                this->setGeometry(this->x(), this->y(), resizeW, resizeH);
+            }
+        }
+    } else if (event->type() == QEvent::MouseButtonPress) {
+        //记住鼠标按下的坐标+窗体区域
+        QMouseEvent *mouseEvent = (QMouseEvent *)event;
+        mousePoint = mouseEvent->pos();
+        mouseRect = this->geometry();
+
+        //判断按下的手柄的区域位置
+        if (pressedRect.at(0).contains(mousePoint)) {
+            pressedArea[0] = true;
+        } else if (pressedRect.at(1).contains(mousePoint)) {
+            pressedArea[1] = true;
+        } else if (pressedRect.at(2).contains(mousePoint)) {
+            pressedArea[2] = true;
+        } else if (pressedRect.at(3).contains(mousePoint)) {
+            pressedArea[3] = true;
+        } else if (pressedRect.at(4).contains(mousePoint)) {
+            pressedArea[4] = true;
+        } else if (pressedRect.at(5).contains(mousePoint)) {
+            pressedArea[5] = true;
+        } else if (pressedRect.at(6).contains(mousePoint)) {
+            pressedArea[6] = true;
+        } else if (pressedRect.at(7).contains(mousePoint)) {
+            pressedArea[7] = true;
+        } else {
+            mousePressed = true;
+        }
+    } else if (event->type() == QEvent::MouseMove) {
+        //改成用HoverMove识别
+    } else if (event->type() == QEvent::MouseButtonRelease) {
+        //恢复所有
+        this->setCursor(Qt::ArrowCursor);
+        mousePressed = false;
+        for (int i = 0; i < 8; ++i) {
+            pressedArea[i] = false;
+        }
+    }
+#endif
+}
+
+bool FramelessMainWindow::eventFilter(QObject *watched, QEvent *event)
+{
+    if (watched == this) {
+        if (event->type() == QEvent::WindowStateChange) {
+            doWindowStateChange(event);
+        } else {
+            doResizeEvent(event);
+        }
+    } else if (watched == titleBar) {
+        //双击标题栏发出双击信号给主界面
+        //下面的 *result = HTCAPTION; 标志位也会自动识别双击标题栏
+#ifndef Q_OS_WIN
+        if (event->type() == QEvent::MouseButtonDblClick) {
+            emit titleDblClick();
+        } else if (event->type() == QEvent::NonClientAreaMouseButtonDblClick) {
+            emit titleDblClick();
+        }
+#endif
+    }
+
+    return QMainWindow::eventFilter(watched, event);
+}
+
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
+bool FramelessMainWindow::nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
+#else
+bool FramelessMainWindow::nativeEvent(const QByteArray &eventType, void *message, long *result)
+#endif
+{
+    if (eventType == "windows_generic_MSG") {
+#ifdef Q_OS_WIN
+        MSG *msg = static_cast<MSG *>(message);
+        //qDebug() << TIMEMS << "nativeEvent" << msg->wParam << msg->message;
+
+        //不同的消息类型和参数进行不同的处理
+        if (msg->message == WM_NCCALCSIZE) {
+            *result = 0;
+            return true;
+        } else if (msg->message == WM_NCHITTEST) {
+            //计算鼠标对应的屏幕坐标
+            //这里最开始用的 LOWORD HIWORD 在多屏幕的时候会有问题
+            //官方说明在这里 https://docs.microsoft.com/zh-cn/windows/win32/inputdev/wm-nchittest
+            long x = GET_X_LPARAM(msg->lParam);
+            long y = GET_Y_LPARAM(msg->lParam);
+            QPoint pos = mapFromGlobal(QPoint(x, y));
+
+            //判断当前鼠标位置在哪个区域
+            bool left = pos.x() < padding;
+            bool right = pos.x() > width() - padding;
+            bool top = pos.y() < padding;
+            bool bottom = pos.y() > height() - padding;
+
+            //鼠标移动到四个角,这个消息是当鼠标移动或者有鼠标键按下时候发出的
+            *result = 0;
+            if (resizeEnable) {
+                if (left && top) {
+                    *result = HTTOPLEFT;
+                } else if (left && bottom) {
+                    *result = HTBOTTOMLEFT;
+                } else if (right && top) {
+                    *result = HTTOPRIGHT;
+                } else if (right && bottom) {
+                    *result = HTBOTTOMRIGHT;
+                } else if (left) {
+                    *result = HTLEFT;
+                } else if (right) {
+                    *result = HTRIGHT;
+                } else if (top) {
+                    *result = HTTOP;
+                } else if (bottom) {
+                    *result = HTBOTTOM;
+                }
+            }
+
+            //先处理掉拉伸
+            if (0 != *result) {
+                return true;
+            }
+
+            //识别标题栏拖动产生半屏全屏效果
+            if (titleBar != 0 && titleBar->rect().contains(pos)) {
+                QWidget *child = titleBar->childAt(pos);
+                if (!child) {
+                    *result = HTCAPTION;
+                    return true;
+                }
+            }
+        } else if (msg->wParam == PBT_APMSUSPEND && msg->message == WM_POWERBROADCAST) {
+            //系统休眠的时候自动最小化可以规避程序可能出现的问题
+            this->showMinimized();
+        } else if (msg->wParam == PBT_APMRESUMEAUTOMATIC) {
+            //休眠唤醒后自动打开
+            this->showNormal();
+        }
+#endif
+    } else if (eventType == "NSEvent") {
+#ifdef Q_OS_MACOS
+#endif
+    } else if (eventType == "xcb_generic_event_t") {
+#ifdef Q_OS_LINUX
+#endif
+    }
+    return false;
+}
+
+#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
+#ifdef Q_OS_WIN
+bool FramelessMainWindow::winEvent(MSG *message, long *result)
+{
+    return nativeEvent("windows_generic_MSG", message, result);
+}
+#endif
+#endif
+
+void FramelessMainWindow::setPadding(int padding)
+{
+    this->padding = padding;
+}
+
+void FramelessMainWindow::setMoveEnable(bool moveEnable)
+{
+    this->moveEnable = moveEnable;
+}
+
+void FramelessMainWindow::setResizeEnable(bool resizeEnable)
+{
+    this->resizeEnable = resizeEnable;
+}
+
+void FramelessMainWindow::setTitleBar(QWidget *titleBar)
+{
+    this->titleBar = titleBar;
+    this->titleBar->installEventFilter(this);
+}

widget/framelesswidget/framelesscore/framelessmainwindow.h

@@ -0,0 +1,96 @@
+#ifndef FRAMELESSMAINWINDOW_H
+#define FRAMELESSMAINWINDOW_H
+
+/**
+ * 无边框窗体类 作者:feiyangqingyun(QQ:517216493) 2021-07-27
+ * 1. 同时支持Qt4-Qt6，亲测Qt4.7到Qt6.2。
+ * 2. 同时支持mingw、msvc、gcc等。
+ * 3. 同时支持windows、linux、mac。
+ * 4. 同时支持QMainWindow、QWidget、QDialog。
+ * 5. 使用方法极其简单，只需要将继承类修改即可。
+ * 6. 自动识别双击标题栏响应。
+ * 7. 无边框拉伸在windows下不抖动。
+ * 8. 在windows下具有移动到边缘半屏、移动到顶部全屏特性。
+ * 9. 解决mac系统上无边框最小化最大化失效的BUG。
+ * 10. 解决系统休眠后再次启动程序懵逼的BUG。
+ * 11. 解决有时候窗体重新显示的时候假死不刷新的BUG。
+ * 12. 轻量级，1个代码文件，核心代码行数不到300行。
+ * 13. 注释详细，示例完美，非常适合阅读和学习。
+ * 14. 开源开箱即用，保证任意Qt版本可正常编译运行，无需任何调整。
+ */
+
+#include <QMainWindow>
+
+#ifdef quc
+class Q_DECL_EXPORT FramelessMainWindow : public QMainWindow
+#else
+class FramelessMainWindow : public QMainWindow
+#endif
+
+{
+    Q_OBJECT
+public:
+    explicit FramelessMainWindow(QWidget *parent = 0);
+
+protected:
+    //窗体显示的时候触发
+    void showEvent(QShowEvent *event);
+
+    //事件过滤器识别拖动拉伸等
+    void doWindowStateChange(QEvent *event);
+    void doResizeEvent(QEvent *event);
+    bool eventFilter(QObject *watched, QEvent *event);
+
+    //拦截系统事件用于修复系统休眠后唤醒程序的BUG
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
+    bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result);
+#else
+    bool nativeEvent(const QByteArray &eventType, void *message, long *result);
+#endif
+
+    //Qt4的写法
+#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
+#ifdef Q_OS_WIN
+    bool winEvent(MSG *message, long *result);
+#endif
+#endif
+
+private:
+    //边距+可移动+可拉伸
+    int padding;
+    bool moveEnable;
+    bool resizeEnable;
+
+    //标题栏控件
+    QWidget *titleBar;
+
+    //鼠标是否按下+按下坐标+按下时窗体区域
+    bool mousePressed;
+    QPoint mousePoint;
+    QRect mouseRect;
+
+    //鼠标是否按下某个区域+按下区域的大小
+    //依次为 左侧+右侧+上侧+下侧+左上侧+右上侧+左下侧+右下侧
+    QList<bool> pressedArea;
+    QList<QRect> pressedRect;
+
+    //记录是否最小化
+    bool isMin;
+    //存储窗体默认的属性
+    Qt::WindowFlags flags;
+
+public Q_SLOTS:
+    //设置边距+可拖动+可拉伸
+    void setPadding(int padding);
+    void setMoveEnable(bool moveEnable);
+    void setResizeEnable(bool resizeEnable);
+
+    //设置标题栏控件
+    void setTitleBar(QWidget *titleBar);
+
+Q_SIGNALS:
+    void titleDblClick();
+    void windowStateChange(bool max);
+};
+
+#endif // FRAMELESSMAINWINDOW_H

widget/framelesswidget/framelesscore/framelesswidget.cpp

@@ -0,0 +1,373 @@
+#include "framelesswidget.h"
+#include "qdatetime.h"
+#include "qevent.h"
+#include "qdebug.h"
+
+#ifdef Q_OS_WIN
+#include "windows.h"
+#include "windowsx.h"
+#pragma comment (lib,"user32.lib")
+#endif
+
+#define TIMEMS qPrintable(QTime::currentTime().toString("HH:mm:ss zzz"))
+
+FramelessWidget::FramelessWidget(QWidget *parent) : QWidget(parent)
+{
+    padding = 8;
+    moveEnable = true;
+    resizeEnable = true;
+
+    mousePressed = false;
+    mousePoint = QPoint(0, 0);
+    mouseRect = QRect(0, 0, 0, 0);
+
+    for (int i = 0; i < 8; ++i) {
+        pressedArea << false;
+        pressedRect << QRect(0, 0, 0, 0);
+    }
+
+    isMin = false;
+    flags = this->windowFlags();
+    titleBar = 0;
+
+    //设置背景透明 官方在5.3以后才彻底修复 WA_TranslucentBackground+FramelessWindowHint 并存不绘制的BUG
+#if (QT_VERSION >= QT_VERSION_CHECK(5,3,0))
+    this->setAttribute(Qt::WA_TranslucentBackground);
+#endif
+    //设置无边框属性
+    this->setWindowFlags(flags | Qt::FramelessWindowHint);
+    //安装事件过滤器识别拖动
+    this->installEventFilter(this);
+
+    //设置属性产生win窗体效果,移动到边缘半屏或者最大化等
+    //设置以后会产生标题栏需要在下面拦截消息重新去掉
+#ifdef Q_OS_WIN
+    HWND hwnd = (HWND)this->winId();
+    DWORD style = ::GetWindowLong(hwnd, GWL_STYLE);
+    ::SetWindowLong(hwnd, GWL_STYLE, style | WS_MAXIMIZEBOX | WS_THICKFRAME | WS_CAPTION);
+#endif
+}
+
+void FramelessWidget::showEvent(QShowEvent *event)
+{
+    //解决有时候窗体重新显示的时候假死不刷新的BUG
+    setAttribute(Qt::WA_Mapped);
+    QWidget::showEvent(event);
+}
+
+void FramelessWidget::doWindowStateChange(QEvent *event)
+{
+    //非最大化才能移动和拖动大小
+    if (windowState() == Qt::WindowNoState) {
+        moveEnable = true;
+        resizeEnable = true;
+    } else {
+        moveEnable = false;
+        resizeEnable = false;
+    }
+
+    //发出最大化最小化等改变事件,以便界面上更改对应的信息比如右上角图标和文字
+    emit windowStateChange(!moveEnable);
+
+    //解决mac系统上无边框最小化失效的BUG
+#ifdef Q_OS_MACOS
+    if (windowState() & Qt::WindowMinimized) {
+        isMin = true;
+    } else {
+        if (isMin) {
+            //设置无边框属性
+            this->setWindowFlags(flags | Qt::FramelessWindowHint);
+            this->setVisible(true);
+            isMin = false;
+        }
+    }
+#endif
+}
+
+void FramelessWidget::doResizeEvent(QEvent *event)
+{
+    //非win系统的无边框拉伸,win系统上已经采用了nativeEvent来处理拉伸
+    //为何不统一用计算的方式因为在win上用这个方式往左拉伸会发抖妹的
+#ifndef Q_OS_WIN
+    if (event->type() == QEvent::Resize) {
+        //重新计算八个描点的区域,描点区域的作用还有就是计算鼠标坐标是否在某一个区域内
+        int width = this->width();
+        int height = this->height();
+
+        //左侧描点区域
+        pressedRect[0] = QRect(0, padding, padding, height - padding * 2);
+        //右侧描点区域
+        pressedRect[1] = QRect(width - padding, padding, padding, height - padding * 2);
+        //上侧描点区域
+        pressedRect[2] = QRect(padding, 0, width - padding * 2, padding);
+        //下侧描点区域
+        pressedRect[3] = QRect(padding, height - padding, width - padding * 2, padding);
+
+        //左上角描点区域
+        pressedRect[4] = QRect(0, 0, padding, padding);
+        //右上角描点区域
+        pressedRect[5] = QRect(width - padding, 0, padding, padding);
+        //左下角描点区域
+        pressedRect[6] = QRect(0, height - padding, padding, padding);
+        //右下角描点区域
+        pressedRect[7] = QRect(width - padding, height - padding, padding, padding);
+    } else if (event->type() == QEvent::HoverMove) {
+        //设置对应鼠标形状,这个必须放在这里而不是下面,因为可以在鼠标没有按下的时候识别
+        QHoverEvent *hoverEvent = (QHoverEvent *)event;
+        QPoint point = hoverEvent->pos();
+        if (resizeEnable) {
+            if (pressedRect.at(0).contains(point)) {
+                this->setCursor(Qt::SizeHorCursor);
+            } else if (pressedRect.at(1).contains(point)) {
+                this->setCursor(Qt::SizeHorCursor);
+            } else if (pressedRect.at(2).contains(point)) {
+                this->setCursor(Qt::SizeVerCursor);
+            } else if (pressedRect.at(3).contains(point)) {
+                this->setCursor(Qt::SizeVerCursor);
+            } else if (pressedRect.at(4).contains(point)) {
+                this->setCursor(Qt::SizeFDiagCursor);
+            } else if (pressedRect.at(5).contains(point)) {
+                this->setCursor(Qt::SizeBDiagCursor);
+            } else if (pressedRect.at(6).contains(point)) {
+                this->setCursor(Qt::SizeBDiagCursor);
+            } else if (pressedRect.at(7).contains(point)) {
+                this->setCursor(Qt::SizeFDiagCursor);
+            } else {
+                this->setCursor(Qt::ArrowCursor);
+            }
+        }
+
+        //根据当前鼠标位置,计算XY轴移动了多少
+        int offsetX = point.x() - mousePoint.x();
+        int offsetY = point.y() - mousePoint.y();
+
+        //根据按下处的位置判断是否是移动控件还是拉伸控件
+        if (moveEnable && mousePressed) {
+            this->move(this->x() + offsetX, this->y() + offsetY);
+        }
+
+        if (resizeEnable) {
+            int rectX = mouseRect.x();
+            int rectY = mouseRect.y();
+            int rectW = mouseRect.width();
+            int rectH = mouseRect.height();
+
+            if (pressedArea.at(0)) {
+                int resizeW = this->width() - offsetX;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, rectY, resizeW, rectH);
+                }
+            } else if (pressedArea.at(1)) {
+                this->setGeometry(rectX, rectY, rectW + offsetX, rectH);
+            } else if (pressedArea.at(2)) {
+                int resizeH = this->height() - offsetY;
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(rectX, this->y() + offsetY, rectW, resizeH);
+                }
+            } else if (pressedArea.at(3)) {
+                this->setGeometry(rectX, rectY, rectW, rectH + offsetY);
+            } else if (pressedArea.at(4)) {
+                int resizeW = this->width() - offsetX;
+                int resizeH = this->height() - offsetY;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, this->y(), resizeW, resizeH);
+                }
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y() + offsetY, resizeW, resizeH);
+                }
+            } else if (pressedArea.at(5)) {
+                int resizeW = rectW + offsetX;
+                int resizeH = this->height() - offsetY;
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y() + offsetY, resizeW, resizeH);
+                }
+            } else if (pressedArea.at(6)) {
+                int resizeW = this->width() - offsetX;
+                int resizeH = rectH + offsetY;
+                if (this->minimumWidth() <= resizeW) {
+                    this->setGeometry(this->x() + offsetX, this->y(), resizeW, resizeH);
+                }
+                if (this->minimumHeight() <= resizeH) {
+                    this->setGeometry(this->x(), this->y(), resizeW, resizeH);
+                }
+            } else if (pressedArea.at(7)) {
+                int resizeW = rectW + offsetX;
+                int resizeH = rectH + offsetY;
+                this->setGeometry(this->x(), this->y(), resizeW, resizeH);
+            }
+        }
+    } else if (event->type() == QEvent::MouseButtonPress) {
+        //记住鼠标按下的坐标+窗体区域
+        QMouseEvent *mouseEvent = (QMouseEvent *)event;
+        mousePoint = mouseEvent->pos();
+        mouseRect = this->geometry();
+
+        //判断按下的手柄的区域位置
+        if (pressedRect.at(0).contains(mousePoint)) {
+            pressedArea[0] = true;
+        } else if (pressedRect.at(1).contains(mousePoint)) {
+            pressedArea[1] = true;
+        } else if (pressedRect.at(2).contains(mousePoint)) {
+            pressedArea[2] = true;
+        } else if (pressedRect.at(3).contains(mousePoint)) {
+            pressedArea[3] = true;
+        } else if (pressedRect.at(4).contains(mousePoint)) {
+            pressedArea[4] = true;
+        } else if (pressedRect.at(5).contains(mousePoint)) {
+            pressedArea[5] = true;
+        } else if (pressedRect.at(6).contains(mousePoint)) {
+            pressedArea[6] = true;
+        } else if (pressedRect.at(7).contains(mousePoint)) {
+            pressedArea[7] = true;
+        } else {
+            mousePressed = true;
+        }
+    } else if (event->type() == QEvent::MouseMove) {
+        //改成用HoverMove识别
+    } else if (event->type() == QEvent::MouseButtonRelease) {
+        //恢复所有
+        this->setCursor(Qt::ArrowCursor);
+        mousePressed = false;
+        for (int i = 0; i < 8; ++i) {
+            pressedArea[i] = false;
+        }
+    }
+#endif
+}
+
+bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
+{
+    if (watched == this) {
+        if (event->type() == QEvent::WindowStateChange) {
+            doWindowStateChange(event);
+        } else {
+            doResizeEvent(event);
+        }
+    } else if (watched == titleBar) {
+        //双击标题栏发出双击信号给主界面
+        //下面的 *result = HTCAPTION; 标志位也会自动识别双击标题栏
+#ifndef Q_OS_WIN
+        if (event->type() == QEvent::MouseButtonDblClick) {
+            emit titleDblClick();
+        } else if (event->type() == QEvent::NonClientAreaMouseButtonDblClick) {
+            emit titleDblClick();
+        }
+#endif
+    }
+
+    return QWidget::eventFilter(watched, event);
+}
+
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
+bool FramelessWidget::nativeEvent(const QByteArray &eventType, void *message, qintptr *result)
+#else
+bool FramelessWidget::nativeEvent(const QByteArray &eventType, void *message, long *result)
+#endif
+{
+    if (eventType == "windows_generic_MSG") {
+#ifdef Q_OS_WIN
+        MSG *msg = static_cast<MSG *>(message);
+        //qDebug() << TIMEMS << "nativeEvent" << msg->wParam << msg->message;
+
+        //不同的消息类型和参数进行不同的处理
+        if (msg->message == WM_NCCALCSIZE) {
+            *result = 0;
+            return true;
+        } else if (msg->message == WM_NCHITTEST) {
+            //计算鼠标对应的屏幕坐标
+            //这里最开始用的 LOWORD HIWORD 在多屏幕的时候会有问题
+            //官方说明在这里 https://docs.microsoft.com/zh-cn/windows/win32/inputdev/wm-nchittest
+            long x = GET_X_LPARAM(msg->lParam);
+            long y = GET_Y_LPARAM(msg->lParam);
+            QPoint pos = mapFromGlobal(QPoint(x, y));
+
+            //判断当前鼠标位置在哪个区域
+            bool left = pos.x() < padding;
+            bool right = pos.x() > width() - padding;
+            bool top = pos.y() < padding;
+            bool bottom = pos.y() > height() - padding;
+
+            //鼠标移动到四个角,这个消息是当鼠标移动或者有鼠标键按下时候发出的
+            *result = 0;
+            if (resizeEnable) {
+                if (left && top) {
+                    *result = HTTOPLEFT;
+                } else if (left && bottom) {
+                    *result = HTBOTTOMLEFT;
+                } else if (right && top) {
+                    *result = HTTOPRIGHT;
+                } else if (right && bottom) {
+                    *result = HTBOTTOMRIGHT;
+                } else if (left) {
+                    *result = HTLEFT;
+                } else if (right) {
+                    *result = HTRIGHT;
+                } else if (top) {
+                    *result = HTTOP;
+                } else if (bottom) {
+                    *result = HTBOTTOM;
+                }
+            }
+
+            //先处理掉拉伸
+            if (0 != *result) {
+                return true;
+            }
+
+            //识别标题栏拖动产生半屏全屏效果
+            if (titleBar != 0 && titleBar->rect().contains(pos)) {
+                QWidget *child = titleBar->childAt(pos);
+                if (!child) {
+                    *result = HTCAPTION;
+                    return true;
+                }
+            }
+        } else if (msg->wParam == PBT_APMSUSPEND && msg->message == WM_POWERBROADCAST) {
+            //系统休眠的时候自动最小化可以规避程序可能出现的问题
+            this->showMinimized();
+        } else if (msg->wParam == PBT_APMRESUMEAUTOMATIC) {
+            //休眠唤醒后自动打开
+            this->showNormal();
+        }
+#endif
+    } else if (eventType == "NSEvent") {
+#ifdef Q_OS_MACOS
+#endif
+    } else if (eventType == "xcb_generic_event_t") {
+#ifdef Q_OS_LINUX
+#endif
+    }
+    return false;
+}
+
+#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
+#ifdef Q_OS_WIN
+bool FramelessWidget::winEvent(MSG *message, long *result)
+{
+    return nativeEvent("windows_generic_MSG", message, result);
+}
+#endif
+#endif
+
+void FramelessWidget::setPadding(int padding)
+{
+    this->padding = padding;
+}
+
+void FramelessWidget::setMoveEnable(bool moveEnable)
+{
+    this->moveEnable = moveEnable;
+}
+
+void FramelessWidget::setResizeEnable(bool resizeEnable)
+{
+    this->resizeEnable = resizeEnable;
+}
+
+void FramelessWidget::setTitleBar(QWidget *titleBar)
+{
+    this->titleBar = titleBar;
+    this->titleBar->installEventFilter(this);
+}
+
+

widget/framelesswidget/framelesscore/framelesswidget.h

@@ -0,0 +1,96 @@
+#ifndef FRAMELESSWIDGET_H
+#define FRAMELESSWIDGET_H
+
+/**
+ * 无边框窗体类 作者:feiyangqingyun(QQ:517216493) 2021-07-27
+ * 1. 同时支持Qt4-Qt6，亲测Qt4.7到Qt6.2。
+ * 2. 同时支持mingw、msvc、gcc等。
+ * 3. 同时支持windows、linux、mac。
+ * 4. 同时支持QMainWindow、QWidget、QDialog。
+ * 5. 使用方法极其简单，只需要将继承类修改即可。
+ * 6. 自动识别双击标题栏响应。
+ * 7. 无边框拉伸在windows下不抖动。
+ * 8. 在windows下具有移动到边缘半屏、移动到顶部全屏特性。
+ * 9. 解决mac系统上无边框最小化最大化失效的BUG。
+ * 10. 解决系统休眠后再次启动程序懵逼的BUG。
+ * 11. 解决有时候窗体重新显示的时候假死不刷新的BUG。
+ * 12. 轻量级，1个代码文件，核心代码行数不到300行。
+ * 13. 注释详细，示例完美，非常适合阅读和学习。
+ * 14. 开源开箱即用，保证任意Qt版本可正常编译运行，无需任何调整。
+ */
+
+#include <QWidget>
+
+#ifdef quc
+class Q_DECL_EXPORT FramelessWidget : public QWidget
+#else
+class FramelessWidget : public QWidget
+#endif
+
+{
+    Q_OBJECT
+public:
+    explicit FramelessWidget(QWidget *parent = 0);
+
+protected:
+    //窗体显示的时候触发
+    void showEvent(QShowEvent *event);
+
+    //事件过滤器识别拖动拉伸等
+    void doWindowStateChange(QEvent *event);
+    void doResizeEvent(QEvent *event);
+    bool eventFilter(QObject *watched, QEvent *event);
+
+    //拦截系统事件用于修复系统休眠后唤醒程序的BUG
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
+    bool nativeEvent(const QByteArray &eventType, void *message, qintptr *result);
+#else
+    bool nativeEvent(const QByteArray &eventType, void *message, long *result);
+#endif
+
+    //Qt4的写法
+#if (QT_VERSION < QT_VERSION_CHECK(5,0,0))
+#ifdef Q_OS_WIN
+    bool winEvent(MSG *message, long *result);
+#endif
+#endif
+
+private:
+    //边距+可移动+可拉伸
+    int padding;
+    bool moveEnable;
+    bool resizeEnable;
+
+    //标题栏控件
+    QWidget *titleBar;
+
+    //鼠标是否按下+按下坐标+按下时窗体区域
+    bool mousePressed;
+    QPoint mousePoint;
+    QRect mouseRect;
+
+    //鼠标是否按下某个区域+按下区域的大小
+    //依次为 左侧+右侧+上侧+下侧+左上侧+右上侧+左下侧+右下侧
+    QList<bool> pressedArea;
+    QList<QRect> pressedRect;
+
+    //记录是否最小化
+    bool isMin;
+    //存储窗体默认的属性
+    Qt::WindowFlags flags;
+
+public Q_SLOTS:
+    //设置边距+可拖动+可拉伸
+    void setPadding(int padding);
+    void setMoveEnable(bool moveEnable);
+    void setResizeEnable(bool resizeEnable);
+
+    //设置标题栏控件
+    void setTitleBar(QWidget *titleBar);
+
+Q_SIGNALS:
+    void titleDblClick();
+    void windowStateChange(bool max);
+};
+
+#endif // FRAMELESSWIDGET_H