增加无边框以及退出、最大化支持

xyylMCWEACSystem/framelesswindow.cpp

@@ -0,0 +1,57 @@
+#include "FramelessWindow.h"
+
+#include <QMouseEvent>
+#include <QGridLayout>
+#include <QGraphicsDropShadowEffect>
+
+struct FramelessWindowPrivate {
+    FramelessWindowPrivate(QWidget *contentWidget) : contentWidget(contentWidget) {}
+
+    QWidget *contentWidget;
+    QPoint mousePressedPosition; // 鼠标按下时的坐标
+    QPoint windowPositionAsDrag; // 鼠标按小时窗口左上角的坐标
+};
+
+FramelessWindow::FramelessWindow(QWidget *contentWidget, QWidget *parent) : QWidget(parent) {
+    setWindowFlags(Qt::FramelessWindowHint);    // 去掉边框
+    setAttribute(Qt::WA_TranslucentBackground); // 背景透明
+
+    d = new FramelessWindowPrivate(contentWidget);
+
+    // 添加阴影
+    QGraphicsDropShadowEffect *shadowEffect = new QGraphicsDropShadowEffect(contentWidget);
+    shadowEffect->setColor(Qt::lightGray);
+    shadowEffect->setBlurRadius(4); // 阴影的大小
+    shadowEffect->setOffset(0, 0);
+    contentWidget->setGraphicsEffect(shadowEffect);
+
+    // 添加到窗口中
+    QGridLayout *lo = new QGridLayout();
+    lo->addWidget(contentWidget, 0, 0);
+    lo->setContentsMargins(4, 4, 4, 4); // 注意和阴影大小的协调
+    setLayout(lo);
+}
+
+FramelessWindow::~FramelessWindow() {
+    delete d;
+}
+
+void FramelessWindow::mousePressEvent(QMouseEvent *e) {
+    // 记录鼠标按下时全局的位置和窗口左上角的位置
+    d->mousePressedPosition = e->globalPos();
+    d->windowPositionAsDrag = pos();
+}
+
+void FramelessWindow::mouseReleaseEvent(QMouseEvent *e) {
+    Q_UNUSED(e)
+    // 鼠标放开始设置鼠标按下的位置为 null，表示鼠标没有被按下
+    d->mousePressedPosition = QPoint();
+}
+
+void FramelessWindow::mouseMoveEvent(QMouseEvent *e) {
+    if (!d->mousePressedPosition.isNull()) {
+        // 鼠标按下并且移动时，移动窗口, 相对于鼠标按下时的位置计算，是为了防止误差累积
+        QPoint delta = e->globalPos() - d->mousePressedPosition;
+        move(d->windowPositionAsDrag + delta);
+    }
+}

xyylMCWEACSystem/framelesswindow.h

@@ -0,0 +1,23 @@
+#ifndef FRAMELESSWINDOW_H
+#define FRAMELESSWINDOW_H
+
+#include <QWidget>
+
+struct FramelessWindowPrivate;
+
+class FramelessWindow : public QWidget {
+    Q_OBJECT
+public:
+    explicit FramelessWindow(QWidget *contentWidget, QWidget *parent = 0);
+    ~FramelessWindow();
+
+protected:
+    void mousePressEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
+    void mouseReleaseEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
+    void mouseMoveEvent(QMouseEvent *e) Q_DECL_OVERRIDE;
+
+private:
+    FramelessWindowPrivate *d;
+};
+
+#endif // FRAMELESSWINDOW_H

xyylMCWEACSystem/main.cpp

@@ -34,13 +34,16 @@
 #include <QStackedWidget>
 
 #include "navlistwidget.h"
+#include "framelesswindow.h"
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
 
-    FrameWindow mainw;
+    FrameWindow *mainw  = new FrameWindow;
-    mainw.resize(1000,800);
+    FramelessWindow *window = new FramelessWindow(mainw);
-    mainw.show();
+    window->resize(300, 400);
+        window->showMaximized();
+
     //a.setStyleSheet("QWidget{background-color:#ffffff;}");
     // a.setStyleSheet("QWidget{background: rgb(47, 61, 82);}");
     QFont globalFont;

xyylMCWEACSystem/titlewidget.cpp

@@ -3,6 +3,7 @@
 #include <QVBoxLayout>
 #include <QGridLayout>
 #include <QDebug>
+#include <QApplication>
 TitleWidget::TitleWidget(QWidget * parent ):QFrame(parent)
 {
     init();
@@ -60,9 +61,17 @@ void  TitleWidget::initLay()
 #endif
 
 }
+
 bool  TitleWidget::initConnect()
 {
+    bool bCon = true;
+    bCon = connect(&m_btnRet,SIGNAL(clicked(bool)),qApp,SLOT(quit()));
+    if(!bCon)
+    {
+        qDebug()<<"connect failed"<<endl;
 
 
+    }
+ return bCon;
 }
 

xyylMCWEACSystem/xyylMCWEACSystem.pro

@@ -30,6 +30,7 @@ SOURCES += \
         dataprocesswidget.cpp \
         devconwidget.cpp \
         eggwidget.cpp \
+        framelesswindow.cpp \
         framewindow.cpp \
         hospitalinfo.cpp \
         loginwidget.cpp \
@@ -49,6 +50,7 @@ HEADERS += \
         dataprocesswidget.h \
         devconwidget.h \
         eggwidget.h \
+        framelesswindow.h \
         framewindow.h \
         hospitalinfo.h \
         loginwidget.h \