修正无边框类

framelesswidget/framelesswidget.cpp

@@ -34,55 +34,26 @@ bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
             int height = widget->height();
 
             //左侧描点区域
-            rectLeft = QRectF(0, padding, padding, height - padding * 2);
+            rectLeft = QRect(0, padding, padding, height - padding * 2);
             //上侧描点区域
-            rectTop = QRectF(padding, 0, width - padding * 2, padding);
+            rectTop = QRect(padding, 0, width - padding * 2, padding);
             //右侧描点区域
-            rectRight = QRectF(width - padding, padding, padding, height - padding * 2);
+            rectRight = QRect(width - padding, padding, padding, height - padding * 2);
             //下侧描点区域
-            rectBottom = QRectF(padding, height - padding, width - padding * 2, padding);
+            rectBottom = QRect(padding, height - padding, width - padding * 2, padding);
 
             //左上角描点区域
-            rectLeftTop = QRectF(0, 0, padding, padding);
+            rectLeftTop = QRect(0, 0, padding, padding);
             //右上角描点区域
-            rectRightTop = QRectF(width - padding, 0, padding, padding);
+            rectRightTop = QRect(width - padding, 0, padding, padding);
             //左下角描点区域
-            rectLeftBottom = QRectF(0, height - padding, padding, padding);
+            rectLeftBottom = QRect(0, height - padding, padding, padding);
             //右下角描点区域
-            rectRightBottom = QRectF(width - padding, height - padding, padding, padding);
+            rectRightBottom = QRect(width - padding, height - padding, padding, padding);
-        } else {
+        } else if (event->type() == QEvent::HoverMove) {
-            QMouseEvent *mouseEvent = (QMouseEvent *)event;
-            if (event->type() == QEvent::MouseButtonPress) {
-                //记住当前控件坐标和宽高以及鼠标按下的坐标
-                rectX = widget->x();
-                rectY = widget->y();
-                rectW = widget->width();
-                rectH = widget->height();
-                lastPos = mouseEvent->pos();
-
-                //判断按下的手柄的区域位置
-                if (rectLeft.contains(lastPos)) {
-                    pressedLeft = true;
-                } else if (rectRight.contains(lastPos)) {
-                    pressedRight = true;
-                } else if (rectTop.contains(lastPos)) {
-                    pressedTop = true;
-                } else if (rectBottom.contains(lastPos)) {
-                    pressedBottom = true;
-                } else if (rectLeftTop.contains(lastPos)) {
-                    pressedLeftTop = true;
-                } else if (rectRightTop.contains(lastPos)) {
-                    pressedRightTop = true;
-                } else if (rectLeftBottom.contains(lastPos)) {
-                    pressedLeftBottom = true;
-                } else if (rectRightBottom.contains(lastPos)) {
-                    pressedRightBottom = true;
-                } else {
-                    pressed = true;
-                }
-            } else if (event->type() == QEvent::MouseMove) {
             //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
-                QPoint point = mouseEvent->pos();
+            QHoverEvent *hoverEvent = (QHoverEvent *)event;
+            QPoint point = hoverEvent->pos();
             if (resizeEnable) {
                 if (rectLeft.contains(point)) {
                     widget->setCursor(Qt::SizeHorCursor);
@@ -161,6 +132,37 @@ bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
                     widget->setGeometry(widget->x(), widget->y(), resizeW, resizeH);
                 }
             }
+        } else if (event->type() == QEvent::MouseButtonPress) {
+            //记住当前控件坐标和宽高以及鼠标按下的坐标
+            QMouseEvent *mouseEvent = (QMouseEvent *)event;
+            rectX = widget->x();
+            rectY = widget->y();
+            rectW = widget->width();
+            rectH = widget->height();
+            lastPos = mouseEvent->pos();
+
+            //判断按下的手柄的区域位置
+            if (rectLeft.contains(lastPos)) {
+                pressedLeft = true;
+            } else if (rectRight.contains(lastPos)) {
+                pressedRight = true;
+            } else if (rectTop.contains(lastPos)) {
+                pressedTop = true;
+            } else if (rectBottom.contains(lastPos)) {
+                pressedBottom = true;
+            } else if (rectLeftTop.contains(lastPos)) {
+                pressedLeftTop = true;
+            } else if (rectRightTop.contains(lastPos)) {
+                pressedRightTop = true;
+            } else if (rectLeftBottom.contains(lastPos)) {
+                pressedLeftBottom = true;
+            } else if (rectRightBottom.contains(lastPos)) {
+                pressedRightBottom = true;
+            } else {
+                pressed = true;
+            }
+        } else if (event->type() == QEvent::MouseMove) {
+            //改成用HoverMove识别
         } else if (event->type() == QEvent::MouseButtonRelease) {
             //恢复所有
             pressed = false;
@@ -175,7 +177,6 @@ bool FramelessWidget::eventFilter(QObject *watched, QEvent *event)
             widget->setCursor(Qt::ArrowCursor);
         }
     }
-    }
 
     return QObject::eventFilter(watched, event);
 }
@@ -203,8 +204,7 @@ void FramelessWidget::setWidget(QWidget *widget)
         this->widget->setMouseTracking(true);
         //绑定事件过滤器
         this->widget->installEventFilter(this);
-        //设置无边框属性
+        //设置悬停为真,必须设置这个,不然当父窗体里边还有子窗体全部遮挡了识别不到MouseMove,需要识别HoverMove
-        this->widget->setWindowFlags(widget->windowFlags() | Qt::FramelessWindowHint);
+        this->widget->setAttribute(Qt::WA_Hover, true);        
-        //this->widget->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint | Qt::WindowMinMaxButtonsHint);
     }
 }

framelesswidget/framelesswidget.h

@@ -51,14 +51,14 @@ private:
     int rectX, rectY, rectW, rectH; //窗体坐标+宽高
     QPoint lastPos;                 //鼠标按下处坐标
 
-    QRectF rectLeft;                //左侧区域
+    QRect rectLeft;                 //左侧区域
-    QRectF rectRight;               //右侧区域
+    QRect rectRight;                //右侧区域
-    QRectF rectTop;                 //上侧区域
+    QRect rectTop;                  //上侧区域
-    QRectF rectBottom;              //下侧区域
+    QRect rectBottom;               //下侧区域
-    QRectF rectLeftTop;             //左上侧区域
+    QRect rectLeftTop;              //左上侧区域
-    QRectF rectRightTop;            //右上侧区域
+    QRect rectRightTop;             //右上侧区域
-    QRectF rectLeftBottom;          //左下侧区域
+    QRect rectLeftBottom;           //左下侧区域
-    QRectF rectRightBottom;         //右下侧区域
+    QRect rectRightBottom;          //右下侧区域
 
 public Q_SLOTS:
     //设置边距

framelesswidget/frmframelesswidget.cpp

@@ -9,6 +9,7 @@
 frmFramelessWidget::frmFramelessWidget(QWidget *parent) : QWidget(parent), ui(new Ui::frmFramelessWidget)
 {
     ui->setupUi(this);
+    w = 0;
 }
 
 frmFramelessWidget::~frmFramelessWidget()
@@ -23,9 +24,11 @@ void frmFramelessWidget::closeEvent(QCloseEvent *)
 
 void frmFramelessWidget::on_btnOpen_clicked()
 {
-    QWidget *w = new QWidget;
+    if (w == 0) {
-    w->setAttribute(Qt::WA_DeleteOnClose);
+        w = new QWidget;
-    w->setWindowFlags(Qt::WindowStaysOnTopHint);
+        //设置无边框属性
+        w->setWindowFlags(Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint);
+        //w->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint | Qt::WindowMinMaxButtonsHint);
         w->setWindowTitle("自由拉伸无边框窗体");
         w->setMinimumSize(200, 120);
         w->resize(480, 320);
@@ -54,6 +57,8 @@ void frmFramelessWidget::on_btnOpen_clicked()
 
         frameless = new FramelessWidget(w);
         frameless->setWidget(w);
+    }
+
     w->show();
 }
 

framelesswidget/frmframelesswidget.h

@@ -22,6 +22,7 @@ protected:
 
 private:
     Ui::frmFramelessWidget *ui;
+    QWidget *w;
     FramelessWidget *frameless;
 
 private slots: