From 1b79f6573aa3b01d97ca4f100ba9ee0c809a4243 Mon Sep 17 00:00:00 2001
From: Leonardo Florez-Valencia <florez-l@javeriana.edu.co>
Date: Mon, 25 Jan 2016 17:41:08 -0500
Subject: [PATCH] ...

---
 lib/cpPipelineEditor/Canvas.cxx | 43 +++++++++++++++++++++++++++++++++
 lib/cpPipelineEditor/Canvas.h   |  2 +-
 lib/cpPipelineEditor/Editor.cxx | 25 +++++++++++++++++++
 lib/cpPipelineEditor/Editor.h   |  5 ++++
 4 files changed, 74 insertions(+), 1 deletion(-)

diff --git a/lib/cpPipelineEditor/Canvas.cxx b/lib/cpPipelineEditor/Canvas.cxx
index 29897fb..b8027d9 100644
--- a/lib/cpPipelineEditor/Canvas.cxx
+++ b/lib/cpPipelineEditor/Canvas.cxx
@@ -44,6 +44,49 @@ editor( ) const
   return( this->m_Editor );
 }
 
+// -------------------------------------------------------------------------
+void cpPipelineEditor::Canvas::
+keyPressEvent( QKeyEvent* event )
+{
+  static const int del_key = 16777223;
+  if( event->key( ) == del_key )
+  {
+    auto _items = this->items( );
+    auto i = _items.begin( );
+    while( i != _items.end( ) )
+    {
+      if( ( *i )->isSelected( ) )
+      {
+        Block* b = dynamic_cast< Block* >( *i );
+        Connection* c = dynamic_cast< Connection* >( *i );
+        if( b != NULL )
+        {
+          if( this->m_Editor->deleteFilter( b->namePort( ).toStdString( ) ) )
+            delete b;
+        }
+        else if( c != NULL )
+        {
+          if(
+            this->m_Editor->deleteConnection(
+              c->port1( )->block( )->namePort( ).toStdString( ),
+              c->port2( )->block( )->namePort( ).toStdString( ),
+              c->port1( )->name( ).toStdString( ),
+              c->port2( )->name( ).toStdString( )
+              )
+            )
+            delete c;
+
+        } // fi
+        i = _items.end( );
+      }
+      else
+        i++;
+
+    } // elihw
+
+  } // fi
+}
+
 // -------------------------------------------------------------------------
 void cpPipelineEditor::Canvas::
 wheelEvent( QWheelEvent* event )
diff --git a/lib/cpPipelineEditor/Canvas.h b/lib/cpPipelineEditor/Canvas.h
index c327a69..eb57a23 100644
--- a/lib/cpPipelineEditor/Canvas.h
+++ b/lib/cpPipelineEditor/Canvas.h
@@ -27,9 +27,9 @@ namespace cpPipelineEditor
 
   protected:
     /* TODO
-       void keyPressEvent( QKeyEvent* event );
        void timerEvent( QTimerEvent* event );
     */
+    void keyPressEvent( QKeyEvent* event );
     void wheelEvent( QWheelEvent* event );
 
     void dragEnterEvent( QDragEnterEvent* event );
diff --git a/lib/cpPipelineEditor/Editor.cxx b/lib/cpPipelineEditor/Editor.cxx
index f74ce6e..736fecc 100644
--- a/lib/cpPipelineEditor/Editor.cxx
+++ b/lib/cpPipelineEditor/Editor.cxx
@@ -127,6 +127,31 @@ createFilter( const std::string& filter, const QPointF& pnt )
     return( "" );
 }
 
+// -------------------------------------------------------------------------
+bool cpPipelineEditor::Editor::
+deleteFilter( const std::string& name )
+{
+  std::cout << name << std::endl;
+#error delete filter
+  return( false );
+}
+
+// -------------------------------------------------------------------------
+bool cpPipelineEditor::Editor::
+deleteConnection(
+  const std::string& src, const std::string& des,
+  const std::string& in, const std::string& out
+  )
+{
+  std::cout
+    << src << " "
+    << des << " "
+    << in << " "
+    << out << std::endl;
+#error delete connection
+  return( false );
+}
+
 // -------------------------------------------------------------------------
 void cpPipelineEditor::Editor::
 install( QGraphicsScene* s )
diff --git a/lib/cpPipelineEditor/Editor.h b/lib/cpPipelineEditor/Editor.h
index ca273b2..bceeecd 100644
--- a/lib/cpPipelineEditor/Editor.h
+++ b/lib/cpPipelineEditor/Editor.h
@@ -57,6 +57,11 @@ namespace cpPipelineEditor
       const std::string& filter,
       const QPointF& pnt = QPointF( qreal( 0 ), qreal( 0 ) )
       );
+    bool deleteFilter( const std::string& name );
+    bool deleteConnection(
+      const std::string& src, const std::string& des,
+      const std::string& in, const std::string& out
+      );
 
     void install( QGraphicsScene* s );
     bool eventFilter( QObject* o, QEvent* e );
-- 
2.47.1