Starts the loading layout

eeschema/qa/test_basic.cpp

@@ -44,6 +44,6 @@ BOOST_AUTO_TEST_CASE( Load )
 {
     SCH_PLUGIN* pi = SCH_IO_MGR::FindPlugin( SCH_IO_MGR::SCH_EAGLE );
 
-    pi->Load("/home/alejandro/Proyectos/kicad/kicad-alejandro/eeschema/qa/data/eagle_schematics",
-             &Kiway());
+    pi->Load("/home/alejandro/Proyectos/kicad/kicad-alejandro/eeschema/qa/data/eagle_schematics/empty.sch",
+             NULL);
 }

eeschema/sch_eagle_plugin.cpp

@@ -22,19 +22,24 @@
 #include <properties.h>
 
 #include <wx/filename.h>
+#include <memory>
 
-// #include <richio.h>
+#include <sch_sheet.h>
 #include <sch_eagle_plugin.h>
 
+using namespace std;
+
 
 SCH_EAGLE_PLUGIN::SCH_EAGLE_PLUGIN()
 {
+    m_rootSheet = nullptr;
 }
 
 SCH_EAGLE_PLUGIN::~SCH_EAGLE_PLUGIN()
 {
 }
 
+
 const wxString SCH_EAGLE_PLUGIN::GetName() const
 {
     return wxT( "EAGLE" );
@@ -62,18 +67,174 @@ void SCH_EAGLE_PLUGIN::SaveLibrary( const wxString& aFileName, const PROPERTIES*
 SCH_SHEET* SCH_EAGLE_PLUGIN::Load( const wxString& aFileName, KIWAY* aKiway,
                                    SCH_SHEET* aAppendToMe, const PROPERTIES* aProperties )
 {
-    wxASSERT( !aFileName || aKiway != NULL );
-
-    SCH_SHEET*  sheet = nullptr;
+    // TODO: Handle Kiway adn uncomment next line.
+    // wxASSERT( !aFileName || aKiway != NULL );
 
+    // Load the document
+    wxXmlDocument xmlDocument;
     wxFileName fn = aFileName;
 
-    if( !m_xmlTree.Load( fn.GetFullPath() ) )
+    if( !xmlDocument.Load( fn.GetFullPath() ) )
         THROW_IO_ERROR( wxString::Format( _( "Unable to read file '%s'" ), fn.GetFullPath() ) );
 
-    return sheet;
+    // Delete on exception, if I own m_rootSheet, according to aAppendToMe
+    unique_ptr<SCH_SHEET> deleter( aAppendToMe ? nullptr : m_rootSheet  );
+
+    if( aAppendToMe )
+    {
+        m_rootSheet = aAppendToMe->GetRootSheet();
+        // deleter = make_unique<SCH_SHEET>( nullptr );
+    }
+    else
+    {
+        m_rootSheet = new SCH_SHEET();
+        m_rootSheet->SetFileName( aFileName );
+        // deleter = make_unique<SCH_SHEET>( m_rootSheet );
+    }
+
+    // Retrieve the root as current node
+    wxXmlNode* currentNode = xmlDocument.GetRoot();
+
+    // If the attribute is found, store the Eagle version;
+    // otherwise, store the dummy "0.0" version.
+    m_version = currentNode->GetAttribute("version", "0.0");
+
+    // Loop through all children
+    currentNode = currentNode->GetChildren();
+    while( currentNode )
+    {
+        wxString nodeName = currentNode->GetName();
+
+        if( nodeName == "compatibility" )
+        {
+            // TODO: handle compatibility nodes
+        }
+        else if( nodeName == "drawing")
+        {
+            loadDrawing( currentNode );
+        }
+        else // DEFAULT
+        {
+            THROW_IO_ERROR( wxString::Format( _( "XML node '%s' unknown" ), nodeName ) );
+        }
+
+        currentNode = currentNode->GetNext();
+    }
+
+    deleter.release();
+    return m_rootSheet;
 }
 
+void SCH_EAGLE_PLUGIN::loadDrawing( wxXmlNode* currentNode )
+{
+    currentNode = currentNode->GetChildren();
+
+    while( currentNode )
+    {
+        wxString nodeName = currentNode->GetName();
+
+        if( nodeName == "board" )
+        {
+            // TODO: handle board nodes
+        }
+        else if( nodeName == "grid" )
+        {
+            // TODO: handle grid nodes
+        }
+        else if( nodeName == "layers" )
+        {
+            // TODO: handle layers nodes
+        }
+        else if( nodeName == "library" )
+        {
+            // TODO: handle library nodes
+        }
+        else if( nodeName == "schematic" )
+        {
+            loadSchematic( currentNode );
+        }
+        else if( nodeName == "settings" )
+        {
+            // TODO: handle settings nodes
+        }
+        else // DEFAULT
+        {
+            THROW_IO_ERROR( wxString::Format( _( "XML node '%s' unknown" ), nodeName ) );
+        }
+
+        currentNode = currentNode->GetNext();
+    }
+}
+
+void SCH_EAGLE_PLUGIN::loadSchematic( wxXmlNode* currentNode )
+{
+    currentNode = currentNode->GetChildren();
+
+    while( currentNode )
+    {
+        wxString nodeName = currentNode->GetName();
+
+        if( nodeName == "attributes" )
+        {
+            wxXmlNode* attributeNode = currentNode->GetChildren();
+            while( attributeNode )
+            {
+                // TODO: handle attributes
+                // Possible attributes: constant, display, font, layer, name,
+                // ratio, rot, size, value, x, y.
+                attributeNode = attributeNode->GetNext();
+            }
+        }
+        else if( nodeName == "classes" )
+        {
+            // TODO : handle classes nodes
+        }
+        else if( nodeName == "description" )
+        {
+            // TODO : handle description nodes
+        }
+        else if( nodeName == "errors" )
+        {
+            // TODO : handle errors nodes
+        }
+        else if( nodeName == "libraries" )
+        {
+            // TODO : handle libraries nodes
+        }
+        else if( nodeName == "modules" )
+        {
+            // TODO : handle modules nodes
+        }
+        else if( nodeName == "parts" )
+        {
+            // TODO : handle parts nodes
+        }
+        else if( nodeName == "sheets" )
+        {
+            wxXmlNode* sheetNode = currentNode->GetChildren();
+            while( sheetNode )
+            {
+                loadSheet( sheetNode );
+                sheetNode = sheetNode->GetNext();
+            }
+        }
+        else if( nodeName == "variantdefs" )
+        {
+            // TODO : handle variantdefs nodes
+        }
+        else // DEFAULT
+        {
+            THROW_IO_ERROR( wxString::Format( _( "XML node '%s' unknown" ), nodeName ) );
+        }
+
+        currentNode = currentNode->GetNext();
+    }
+}
+
+void SCH_EAGLE_PLUGIN::loadSheet( wxXmlNode* currentNode )
+{
+
+}
 
 void SCH_EAGLE_PLUGIN::Save( const wxString& aFileName, SCH_SCREEN* aSchematic, KIWAY* aKiway,
                              const PROPERTIES* aProperties )

eeschema/sch_eagle_plugin.h

@@ -34,7 +34,7 @@
 // class SCH_JUNCTION;
 // class SCH_NO_CONNECT;
 // class SCH_LINE;
-// class SCH_BUS_ENTRY_BASE;
+// class SCH_BUS_ENTRY_BASE;s
 // class SCH_TEXT;
 // class SCH_COMPONENT;
 // class SCH_FIELD;
@@ -104,7 +104,12 @@ public:
 
 
 private:
-    wxXmlDocument m_xmlTree;
+    void loadDrawing( wxXmlNode* node );
+    void loadSchematic( wxXmlNode* node );
+    void loadSheet( wxXmlNode* node );
+
+    SCH_SHEET* m_rootSheet; ///< The root sheet of the schematic being loaded..
+    wxString m_version; ///< Eagle file version.
 protected:
 };