按钮置ON和置OFF

button.cpp

@@ -1,6 +1,7 @@
 #include "button.h"
 #include <QPainter>
 #include <QStyleOptionGraphicsItem>
+#include <QMenu>
 
 Button::Button(const QString &type) : Item(type)
 {
@@ -28,3 +29,31 @@ void Button::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QW
             painter->drawRect(boundingRect());
         }
 }
+
+void Button::addMenuActions(QMenu *menu)
+{
+    menu->addAction("置ON");
+    menu->addAction("置OFF");
+}
+
+void Button::handleMenuAction(QAction *action)
+{
+    if (action->text() == "复制") {
+        emit requestCopy(this);
+    }
+    if (action->text() == "删除") {
+        emit requestDelete(this);
+    }
+    if (action->text() == "对象"){
+        emit requestBindRegister(this);
+    }
+    if (action->text() == "重置"){
+        emit requestReset(this);
+    }
+    if (action->text() == "置ON"){
+        emit requestSetON(this, true);
+    }
+    if (action->text() == "置OFF"){
+        emit requestSetON(this, false);
+    }
+}

button.h

@@ -10,6 +10,8 @@ public:
     void paint(QPainter *painter,
                const QStyleOptionGraphicsItem *option,
                QWidget *) override;
+    void addMenuActions(QMenu *menu) override;
+    void handleMenuAction(QAction *action) override;
 };
 
 #endif // BUTTON_H

item.h

@@ -39,6 +39,7 @@ signals:
     void requestBindRegister(Item*);
     void requestCompare(Item*);
     void requestReset(Item*);
+    void requestSetON(Item*, bool isON);
 
 protected:
     void MenuActions(QMenu *menu);

mainwindow.cpp

@@ -112,6 +112,8 @@ void MainWindow::newPage(bool isPlc)
                 registerManager, &RegisterManager::bindItem);
         connect(newView, &MyGraphicsView::itemResetRegister,
                 registerManager, &RegisterManager::unbindItem);
+        connect(newView, &MyGraphicsView::itemSetON,
+                modbusManager, &ModbusManager::writeRegister);
     }
 }
 

mygraphicsview.cpp

@@ -52,6 +52,7 @@ void MyGraphicsView::dropEvent(QDropEvent *event)
     connect(item, &Item::requestBindRegister, this, &MyGraphicsView::onItemRequestBindRegister);
     connect(item, &Item::requestCompare, this, &MyGraphicsView::onItemRequestCompare);
     connect(item, &Item::requestReset, this, &MyGraphicsView::onItemRequestReset);
+    connect(item, &Item::requestSetON,this, &MyGraphicsView::onItemRequestSetON);
     scene()->addItem(item);
 
     event->acceptProposedAction();
@@ -241,6 +242,18 @@ void MyGraphicsView::onItemRequestReset(Item *item)
     }
 }
 
+void MyGraphicsView::onItemRequestSetON(Item *item, bool isON)
+{
+    if (isON)
+    {
+        emit itemSetON(item->registerId(), 1);
+    }
+    else
+    {
+        emit itemSetON(item->registerId(), 0);
+    }
+}
+
 void MyGraphicsView::mousePressEvent(QMouseEvent *event)
 {
     if (event->button() == Qt::LeftButton) {

mygraphicsview.h

@@ -31,6 +31,7 @@ protected:
 signals:
     void itemBoundToRegister(Item*, QString);
     void itemResetRegister(Item*, QString);
+    void itemSetON(QString, quint16);
 
 private:
     Item* anchorItemAt(const QPoint& viewPos, Item::AnchorType& anchorType);
@@ -51,6 +52,7 @@ public slots:
     void onItemRequestBindRegister(Item*);
     void onItemRequestCompare(Item*);
     void onItemRequestReset(Item*);
+    void onItemRequestSetON(Item*, bool isON);
 };
 
 #endif // MYGRAPHICSVIEW_H