新增遮罩层窗体

maskwidget/maskwidget.cpp

@@ -0,0 +1,95 @@
+#pragma execution_character_set("utf-8")
+
+#include "maskwidget.h"
+#include "qmutex.h"
+#include "qapplication.h"
+#include "qdesktopwidget.h"
+#include "qdebug.h"
+
+QScopedPointer<MaskWidget> MaskWidget::self;
+MaskWidget *MaskWidget::Instance()
+{
+    if (self.isNull()) {
+        static QMutex mutex;
+        QMutexLocker locker(&mutex);
+        if (self.isNull()) {
+            self.reset(new MaskWidget);
+        }
+    }
+
+    return self.data();
+}
+
+MaskWidget::MaskWidget(QWidget *parent) : QWidget(parent)
+{
+    mainWidget = 0;
+    setOpacity(0.7);
+    setBgColor(QColor(0, 0, 0));
+
+    //不设置主窗体则遮罩层大小为默认桌面大小
+    this->setGeometry(qApp->desktop()->geometry());
+    this->setWindowFlags(Qt::FramelessWindowHint | Qt::Tool);
+
+    //绑定全局事件,过滤弹窗窗体进行处理
+    qApp->installEventFilter(this);
+}
+
+void MaskWidget::setMainWidget(QWidget *mainWidget)
+{
+    if (this->mainWidget != mainWidget) {
+        this->mainWidget = mainWidget;
+    }
+}
+
+void MaskWidget::setDialogNames(const QStringList &dialogNames)
+{
+    if (this->dialogNames != dialogNames) {
+        this->dialogNames = dialogNames;
+    }
+}
+
+void MaskWidget::setOpacity(double opacity)
+{
+    this->setWindowOpacity(opacity);
+}
+
+void MaskWidget::setBgColor(const QColor &bgColor)
+{
+    QPalette palette = this->palette();
+    palette.setBrush(QPalette::Background, bgColor);
+    this->setPalette(palette);
+}
+
+void MaskWidget::showEvent(QShowEvent *)
+{
+    if (mainWidget != 0) {
+        this->setGeometry(mainWidget->geometry());
+    }
+}
+
+bool MaskWidget::eventFilter(QObject *obj, QEvent *event)
+{
+    if (event->type() == QEvent::Show) {
+        if (dialogNames.contains(obj->objectName())) {
+            this->show();
+            this->activateWindow();
+            QWidget *w = (QWidget *)obj;
+            w->activateWindow();
+        }
+    } else if (event->type() == QEvent::Hide) {
+        if (dialogNames.contains(obj->objectName())) {
+            this->hide();
+        }
+    } else if (event->type() == QEvent::WindowActivate) {
+        //当主窗体激活时,同时激活遮罩层
+        if (mainWidget != 0) {
+            if (obj->objectName() == mainWidget->objectName()) {
+                if (this->isVisible()) {
+                    this->activateWindow();
+                }
+            }
+        }
+    }
+
+    return QObject::eventFilter(obj, event);
+}