feat: add display flag

CMakeLists.txt

@@ -26,6 +26,7 @@ qt_add_executable(${AppExec}
     src/gui/network/SocketGraphic.cpp
     src/gui/network/NodeEdgeGraphic.cpp
     src/gui/network/FloatingEdgeGraphic.cpp
+    src/gui/network/DisplayFlagButton.cpp
 )
 
 target_link_libraries(${AppExec} PRIVATE Qt6::Core Qt6::Widgets)

src/gui/network/DisplayFlagButton.cpp

@@ -0,0 +1,31 @@
+#include "gui/network/DisplayFlagButton.h"
+#include <QPainter>
+#include <qgraphicsitem.h>
+#include <qnamespace.h>
+
+DisplayFlagButton::DisplayFlagButton(QGraphicsItem *parent)
+: QGraphicsItem(parent)
+{
+    constexpr float width = 8;
+    constexpr float height = 14;
+    baseRect_ = QRectF(-width/2.0f, -height/2.0f, width, height);
+
+}
+
+void DisplayFlagButton::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+    painter->setPen(Qt::NoPen);
+    painter->setBrush(QBrush(disabledColor_));
+    constexpr float roundRad = 3;
+    painter->drawRoundedRect(baseRect_, roundRad, roundRad);
+}
+
+QRectF DisplayFlagButton::boundingRect() const
+{
+    return baseRect_; 
+}
+
+float DisplayFlagButton::getWidth()
+{
+    return baseRect_.width();
+}

src/gui/network/DisplayFlagButton.h

@@ -0,0 +1,17 @@
+#pragma once
+#include <QGraphicsItem>
+
+class DisplayFlagButton
+: public QGraphicsItem
+{
+public:
+    DisplayFlagButton(QGraphicsItem *parent = nullptr);
+    float getWidth();
+private:
+    QRectF baseRect_;
+    QColor disabledColor_=QColor("#373737");
+    QColor enabledColor_=QColor("#00BFFF");
+protected:
+    QRectF boundingRect() const override;    
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
+};

src/gui/network/NodeGraphic.cpp

@@ -4,6 +4,7 @@
 #include <qgraphicsitem.h>
 #include <stdexcept>
 #include <string>
+#include "gui/network/DisplayFlagButton.h"
 #include "gui/network/SocketGraphic.h"
 #include <QGraphicsScene>
 #include <QGraphicsSceneMouseEvent>
@@ -19,6 +20,14 @@ NodeGraphic::NodeGraphic(QGraphicsItem *parent)
     setFlags(QGraphicsItem::ItemIsMovable | QGraphicsItem::ItemIsSelectable);
 
     initSockets();
+    initFlagButtons();
+}
+
+void NodeGraphic::initFlagButtons()
+{
+    displayFlagButton_ = new DisplayFlagButton(this);
+    float padding = 4;
+    displayFlagButton_->setPos(QPointF(bodyRect_.right()-displayFlagButton_->getWidth()/2.0f-padding, bodyRect_.center().y()));
 }
 
 void NodeGraphic::initSockets()

src/gui/network/NodeGraphic.h

@@ -1,6 +1,7 @@
 #pragma once
 #include <QGraphicsItem>
 #include <QPainter>
+#include "gui/network/DisplayFlagButton.h"
 #include "gui/network/SocketGraphic.h"
 #include "gui/network/NodeEdgeGraphic.h"
 #include <iostream>
@@ -29,6 +30,8 @@ public:
 
 private:
     void initSockets();
+    void initFlagButtons();
+
     std::vector<SocketGraphic*> inputs_;
     std::vector<SocketGraphic*> outputs_;
 
@@ -41,6 +44,8 @@ private:
     int inputSocketCnt_=0;
     int outputSocketCnt_=0;
 
+    DisplayFlagButton* displayFlagButton_;
+
     void updatePositions(QPointF pos);
 protected:
         // QVariant itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value) override;