多个元件的复制粘贴

button.cpp

@@ -26,6 +26,7 @@ void Button::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QW
             painter->drawPixmap(0, 0, currentSize_.width(), currentSize_.height(), customPixmap_);
         }
         else{
+            painter->setBrush(Qt::green);
             painter->drawRect(0, 0, currentSize_.width(), currentSize_.height());
         }
     }
@@ -120,9 +121,6 @@ void Button::loadImage()
 {
     if(!imagePath_.isEmpty()){
         customPixmap_ = QPixmap(imagePath_);
-//        if (!customPixmap_.isNull()){
-//            customPixmap_ = customPixmap_.scaled(50, 50, Qt::KeepAspectRatio, Qt::SmoothTransformation);
-//        }
     }
 }
 

contact.cpp

@@ -1,6 +1,7 @@
 #include "contact.h"
 #include <QPainter>
 #include <QStyleOptionGraphicsItem>
+#include <QMenu>
 
 Contact::Contact(const QString &type) : Item(type)
 {
@@ -45,7 +46,6 @@ void Contact::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, Q
         painter->drawEllipse(QPointF(-18, 0), 4, 4);   // 左
         painter->drawEllipse(QPointF(18, 0), 4, 4);    // 右
     }
-
     if (!registerId_.isEmpty()) {
         painter->save();
         painter->setFont(QFont("Arial", 8));
@@ -69,3 +69,31 @@ bool Contact::state() const
 {
     return registerValue_ > 0;
 }
+
+void Contact::addMenuActions(QMenu *menu)
+{
+    menu->addAction("置ON");
+    menu->addAction("置OFF");
+}
+
+void Contact::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);
+    }
+}

contact.h

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

editor.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.11.1, 2025-08-12T22:16:53. -->
+<!-- Written by QtCreator 4.11.1, 2025-08-13T11:12:10. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

item.cpp

@@ -121,25 +121,6 @@ void Item::handleMenuAction(QAction *action)
 
 QVariant Item::itemChange(GraphicsItemChange change, const QVariant &value)
 {
-//    if (change == QGraphicsItem::ItemPositionChange) {
-//        for (Connection* conn : connections_)
-//            conn->updatePosition();
-//    }
-//    if (change == ItemPositionChange && scene()) {
-//        // 获取场景（确保是 GridScene）
-//        if (auto myScene = dynamic_cast<MyScene*>(scene())) {
-//            if (myScene->getSnapToGrid()) {
-//                // 获取网格大小
-//                int gridSize = myScene->getGridSize();
-
-//                // 对齐到网格
-//                QPointF newPos = value.toPointF();
-//                qreal xV = qRound(newPos.x() / gridSize) * gridSize;
-//                qreal yV = qRound(newPos.y() / gridSize) * gridSize;
-//                return QPointF(xV, yV);
-//            }
-//        }
-//    }
     // 处理位置即将改变事件（网格对齐）
     if (change == ItemPositionChange && scene()) {
         QPointF newPos = value.toPointF();

light.cpp

@@ -29,7 +29,7 @@ void Light::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWi
             if (state()) {
                 painter->setBrush(Qt::green); // 激活状态
             } else {
-                painter->setBrush(Qt::white); // 未激活状态
+                painter->setBrush(Qt::red); // 未激活状态
             }
             painter->drawEllipse(0, 0, currentSize_.width(), currentSize_.height());
         }

mainwindow.cpp

@@ -102,6 +102,8 @@ void MainWindow::newPage(bool isPlc)
                 registerManager, &RegisterManager::bindItem);
         connect(newView, &MyGraphicsView::itemResetRegister,
                 registerManager, &RegisterManager::unbindItem);
+        connect(newView, &MyGraphicsView::itemSetON,
+                modbusManager, &ModbusManager::writeRegister);
     } else {
         // 创建新场景
         QGraphicsScene* newScene = new QGraphicsScene(this);
@@ -437,18 +439,6 @@ void MainWindow::hmiChange()
 
 void MainWindow::newProject()
 {
-//    // 检查当前tabwidget是否只有一个页面且页面内容为空
-//    if (currentIsPLC_ && plcScenes.size() == 1 && plcScenes[0]->items().isEmpty()) {
-//        // 复用第一个页面
-//        clearScene();
-//        setWindowTitle("PLC编辑器");
-//        return;
-//    }
-//    if (!currentIsPLC_ && hmiScenes.size() == 1 && hmiScenes[0]->items().isEmpty()) {
-//        clearScene();
-//        setWindowTitle("HMI编辑器");
-//        return;
-//    }
     newPage(currentIsPLC_);
 
     // 更新窗口标题
@@ -476,18 +466,9 @@ void MainWindow::openProject()
 
     Project project;
     if (project.loadFromFile(filePath)) {
-//        // 在当前模块新建一个页面
-//        newPage(currentIsPLC_);
-//        int newPageIndex = currentPageIndex();
-        int newPageIndex = -1;
-        if (currentIsPLC_ && plcScenes.size() == 1 && plcScenes[0]->items().isEmpty()) {
-            newPageIndex = 0;
-        } else if (!currentIsPLC_ && hmiScenes.size() == 1 && hmiScenes[0]->items().isEmpty()) {
-            newPageIndex = 0;
-        } else {
-            newPage(currentIsPLC_);
-            newPageIndex = currentPageIndex();
-        }
+        // 在当前模块新建一个页面
+        newPage(currentIsPLC_);
+        int newPageIndex = currentPageIndex();
 
         // 将项目应用到新页面
         applyProjectToScene(project, newPageIndex);
@@ -553,7 +534,7 @@ void MainWindow::saveProject()
 void MainWindow::connection()
 {
     modbusManager->connectToDevice("COM1",QSerialPort::BaudRate(9600),QSerialPort::DataBits(8),QSerialPort::EvenParity,QSerialPort::StopBits(1));
-    modbusManager->startSimulation(1000);
+    modbusManager->startSimulation();
 }
 
 void MainWindow::disconnection()

mainwindow.ui

@@ -19,7 +19,7 @@
      <rect>
       <x>20</x>
       <y>500</y>
-      <width>951</width>
+      <width>941</width>
       <height>111</height>
      </rect>
     </property>
@@ -28,18 +28,18 @@
     <property name="geometry">
      <rect>
       <x>20</x>
-      <y>30</y>
-      <width>181</width>
-      <height>461</height>
+      <y>40</y>
+      <width>91</width>
+      <height>451</height>
      </rect>
     </property>
    </widget>
    <widget class="QStackedWidget" name="stackedWidget">
     <property name="geometry">
      <rect>
-      <x>210</x>
+      <x>110</x>
       <y>10</y>
-      <width>761</width>
+      <width>861</width>
       <height>481</height>
      </rect>
     </property>
@@ -47,9 +47,9 @@
      <widget class="QTabWidget" name="plc_tab_widget">
       <property name="geometry">
        <rect>
-        <x>0</x>
+        <x>10</x>
         <y>0</y>
-        <width>761</width>
+        <width>841</width>
         <height>481</height>
        </rect>
       </property>
@@ -62,9 +62,9 @@
      <widget class="QTabWidget" name="hmi_tab_widget">
       <property name="geometry">
        <rect>
-        <x>0</x>
+        <x>10</x>
         <y>0</y>
-        <width>761</width>
+        <width>841</width>
         <height>481</height>
        </rect>
       </property>
@@ -77,8 +77,8 @@
    <widget class="QPushButton" name="btn_insert">
     <property name="geometry">
      <rect>
-      <x>30</x>
-      <y>0</y>
+      <x>20</x>
+      <y>10</y>
       <width>93</width>
       <height>28</height>
      </rect>
@@ -87,6 +87,28 @@
      <string>插入</string>
     </property>
    </widget>
+   <widget class="QWidget" name="layoutWidget">
+    <property name="geometry">
+     <rect>
+      <x>0</x>
+      <y>0</y>
+      <width>2</width>
+      <height>2</height>
+     </rect>
+    </property>
+    <layout class="QHBoxLayout" name="horizontalLayout"/>
+   </widget>
+   <widget class="QWidget" name="layoutWidget">
+    <property name="geometry">
+     <rect>
+      <x>0</x>
+      <y>0</y>
+      <width>2</width>
+      <height>2</height>
+     </rect>
+    </property>
+    <layout class="QVBoxLayout" name="verticalLayout_2"/>
+   </widget>
   </widget>
   <widget class="QMenuBar" name="menubar">
    <property name="geometry">

mygraphicsview.cpp

@@ -84,27 +84,49 @@ void MyGraphicsView::keyPressEvent(QKeyEvent *event)
         }
     }else if (event->matches(QKeySequence::Copy)) {
         // Ctrl+C
+        clipboard_.items.clear();
+        clipboard_.connections.clear();
+
         QList<QGraphicsItem*> selectedItems = scene()->selectedItems();
-        for (QGraphicsItem* item : selectedItems) {
-            if (auto node = dynamic_cast<Item*>(item)) {
-                clipboard_.input = node->itemType();
-                break;
+
+        // 过滤出Item类型的元件
+        QList<Item*> items;
+        for (QGraphicsItem* gi : selectedItems) {
+            if (auto item = dynamic_cast<Item*>(gi)) {
+                items.append(item);
+            }
+        }
+
+        // 计算中心点
+        clipboard_.center = calculateItemsCenter(selectedItems);
+
+        // 保存元件信息
+        for (Item* item : items) {
+            CopiedItem copiedItem;
+            copiedItem.type = item->itemType();
+            copiedItem.pos = item->pos() - clipboard_.center;
+            clipboard_.items.append(copiedItem);
+        }
+
+        // 保存连接关系
+        for (QGraphicsItem* gi : selectedItems) {
+            if (auto conn = dynamic_cast<Connection*>(gi)) {
+                int fromIdx = items.indexOf(conn->from_);
+                int toIdx = items.indexOf(conn->to_);
+
+                if (fromIdx >= 0 && toIdx >= 0) {
+                    CopiedConnection copiedConn;
+                    copiedConn.fromIndex = fromIdx;
+                    copiedConn.toIndex = toIdx;
+                    copiedConn.fromType = conn->fromType_;
+                    copiedConn.toType = conn->toType_;
+                    clipboard_.connections.append(copiedConn);
+                }
             }
         }
     } else if (event->matches(QKeySequence::Paste)) {
         // Ctrl+V
-        if (!clipboard_.input.isEmpty()) {
-            QPointF center = mapToScene(viewport()->rect().center());
-            Item* newItem = creatItem(clipboard_.input);
-            newItem->setPos(center);
-            connect(newItem, &Item::requestCopy, this, &MyGraphicsView::onItemRequestCopy);
-            connect(newItem, &Item::requestDelete, this, &MyGraphicsView::onItemRequestDelete);
-            connect(newItem, &Item::requestBindRegister, this, &MyGraphicsView::onItemRequestBindRegister);
-            connect(newItem, &Item::requestCompare, this, &MyGraphicsView::onItemRequestCompare);
-            connect(newItem, &Item::requestReset, this, &MyGraphicsView::onItemRequestReset);
-            connect(newItem, &Item::requestSetON,this, &MyGraphicsView::onItemRequestSetON);
-            scene()->addItem(newItem);
-        }
+        performPaste(mapToScene(viewport()->rect().center()));
     } else {
         QGraphicsView::keyPressEvent(event);
     }
@@ -114,23 +136,21 @@ void MyGraphicsView::contextMenuEvent(QContextMenuEvent *event)
 {
     QPointF scenePos = mapToScene(event->pos());
     QList<QGraphicsItem*> itemsAt = scene()->items(scenePos);
-    if (itemsAt.isEmpty() && !clipboard_.input.isEmpty()) {
-        QMenu menu;
+
+    // 如果有选中的元件，显示元件自己的菜单
+    if (!itemsAt.isEmpty()) {
+        QGraphicsView::contextMenuEvent(event);
+        return;
+    }
+
+    // 没有选中元件时，显示粘贴菜单（如果剪贴板有内容）
+    QMenu menu;
+    if (!clipboard_.items.isEmpty()) {
         QAction* pasteAct = menu.addAction("粘贴");
         QAction* sel = menu.exec(event->globalPos());
         if (sel == pasteAct) {
-            Item* newItem = creatItem(clipboard_.input);
-            newItem->setPos(scenePos);
-            connect(newItem, &Item::requestCopy, this, &MyGraphicsView::onItemRequestCopy);
-            connect(newItem, &Item::requestDelete, this, &MyGraphicsView::onItemRequestDelete);
-            connect(newItem, &Item::requestBindRegister, this, &MyGraphicsView::onItemRequestBindRegister);
-            connect(newItem, &Item::requestCompare, this, &MyGraphicsView::onItemRequestCompare);
-            connect(newItem, &Item::requestReset, this, &MyGraphicsView::onItemRequestReset);
-            connect(newItem, &Item::requestSetON,this, &MyGraphicsView::onItemRequestSetON);
-            scene()->addItem(newItem);
+            performPaste(scenePos); // 在鼠标位置粘贴
         }
-    } else {
-        QGraphicsView::contextMenuEvent(event); // 让Item自己弹出菜单
     }
 }
 
@@ -156,9 +176,29 @@ Item* MyGraphicsView::anchorItemAt(const QPoint& viewPos, Item::AnchorType& anch
     return nullptr;
 }
 
+QPointF MyGraphicsView::calculateItemsCenter(const QList<QGraphicsItem *> &items)
+{
+    QPointF center(0, 0);
+    int count = 0;
+
+    for (QGraphicsItem* item : items) {
+        if (auto node = dynamic_cast<Item*>(item)) {
+            center += node->pos();
+            count++;
+        }
+    }
+
+    return count > 0 ? center / count : QPointF(0, 0);
+}
+
 void MyGraphicsView::onItemRequestCopy(Item *item)
 {
-    clipboard_.input = item->itemType();
+    clipboard_.items.clear();
+    clipboard_.connections.clear();
+
+    CopiedItem copiedItem;
+    copiedItem.type = item->itemType();
+    clipboard_.items.append(copiedItem);
 }
 
 void MyGraphicsView::onItemRequestDelete(Item *item)
@@ -360,3 +400,47 @@ void MyGraphicsView::wheelEvent(QWheelEvent *event)
         QGraphicsView::wheelEvent(event);
     }
 }
+
+void MyGraphicsView::performPaste(const QPointF &pasteCenter)
+{
+    if (clipboard_.items.isEmpty()) return;
+
+    QList<Item*> newItems;
+
+    // 创建新元件
+    for (const CopiedItem& copiedItem : clipboard_.items) {
+        Item* newItem = creatItem(copiedItem.type);
+        if (!newItem) continue;
+
+        // 设置位置（相对于粘贴中心）
+        QPointF newPos = pasteCenter + copiedItem.pos;
+        newItem->setPos(newPos);
+
+        // 连接信号
+        connect(newItem, &Item::requestCopy, this, &MyGraphicsView::onItemRequestCopy);
+        connect(newItem, &Item::requestDelete, this, &MyGraphicsView::onItemRequestDelete);
+        connect(newItem, &Item::requestBindRegister, this, &MyGraphicsView::onItemRequestBindRegister);
+        connect(newItem, &Item::requestCompare, this, &MyGraphicsView::onItemRequestCompare);
+        connect(newItem, &Item::requestReset, this, &MyGraphicsView::onItemRequestReset);
+        connect(newItem, &Item::requestSetON, this, &MyGraphicsView::onItemRequestSetON);
+
+        scene()->addItem(newItem);
+        newItems.append(newItem);
+    }
+
+    // 创建新连接
+    for (const CopiedConnection& copiedConn : clipboard_.connections) {
+        if (copiedConn.fromIndex < newItems.size() && copiedConn.toIndex < newItems.size()) {
+            Connection* conn = new Connection(
+                newItems[copiedConn.fromIndex], copiedConn.fromType,
+                newItems[copiedConn.toIndex], copiedConn.toType);
+            scene()->addItem(conn);
+        }
+    }
+
+    // 选中新粘贴的元件
+    scene()->clearSelection();
+    for (Item* item : newItems) {
+        item->setSelected(true);
+    }
+}

mygraphicsview.h

@@ -26,12 +26,21 @@ public:
     void mouseMoveEvent(QMouseEvent *event) override;
     void mouseReleaseEvent(QMouseEvent *event) override;
     void wheelEvent(QWheelEvent *event) override;
+    void performPaste(const QPointF& pasteCenter);
 
 signals:
     void itemBoundToRegister(Item*, QString);
     void itemResetRegister(Item*, QString);
     void itemSetON(QString, quint16);
 
+public slots:
+    void onItemRequestCopy(Item*);
+    void onItemRequestDelete(Item*);
+    void onItemRequestBindRegister(Item*);
+    void onItemRequestCompare(Item*);
+    void onItemRequestReset(Item*);
+    void onItemRequestSetON(Item*, bool isON);
+
 private:
     Item* anchorItemAt(const QPoint& viewPos, Item::AnchorType& anchorType);
 
@@ -40,18 +49,29 @@ private:
     Item::AnchorType startAnchor_;
     QGraphicsLineItem* tempLine_ = nullptr;
 
+//    struct ClipInfo {
+//        QString input;
+//    };
+    struct CopiedItem {
+        QString type;
+        QPointF pos;
+    };
+
+    struct CopiedConnection {
+        int fromIndex;
+        int toIndex;
+        Item::AnchorType fromType;
+        Item::AnchorType toType;
+    };
+
     struct ClipInfo {
-        QString input;
+        QList<CopiedItem> items;
+        QList<CopiedConnection> connections;
+        QPointF center;
     };
     static ClipInfo clipboard_;
+    QPointF calculateItemsCenter(const QList<QGraphicsItem*>& items);
 
-public slots:
-    void onItemRequestCopy(Item*);
-    void onItemRequestDelete(Item*);
-    void onItemRequestBindRegister(Item*);
-    void onItemRequestCompare(Item*);
-    void onItemRequestReset(Item*);
-    void onItemRequestSetON(Item*, bool isON);
 };
 
 #endif // MYGRAPHICSVIEW_H