Simplify 3D object cache class structure

Remove the CACHE_WRAPPER whose sole purpose was to allow the
cache to be stored in the project, and instead just have the cache
inherit the proper class.

3d-viewer/3d_cache/3d_cache.cpp

@@ -2,7 +2,7 @@
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
  * Copyright (C) 2015-2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
- * Copyright (C) 2018 KiCad Developers, see AUTHORS.txt for contributors.
+ * Copyright (C) 2018-2020 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -24,11 +24,11 @@
 
 #define GLM_FORCE_RADIANS
 
-#include <iostream>
-#include <sstream>
 #include <fstream>
-#include <utility>
+#include <iostream>
 #include <iterator>
+#include <sstream>
+#include <utility>
 
 #include <wx/datetime.h>
 #include <wx/filename.h>
@@ -46,18 +46,22 @@
 #include <glm/glm.hpp>
 #include <glm/ext.hpp>
 
-#include "common.h"
 #include "3d_cache.h"
 #include "3d_info.h"
-#include "sg/scenegraph.h"
-#include "filename_resolver.h"
 #include "3d_plugin_manager.h"
+#include "sg/scenegraph.h"
 #include "plugins/3dapi/ifsg_api.h"
 
+#include <common.h>
+#include <filename_resolver.h>
+#include <pgm_base.h>
+#include <project.h>
+
 
 #define MASK_3D_CACHE "3D_CACHE"
 
 static wxCriticalSection lock3D_cache;
+static wxCriticalSection lock3D_cacheManager;
 
 
 static bool isSHA1Same( const unsigned char* shaA, const unsigned char* shaB )
@@ -772,3 +776,39 @@ wxString S3D_CACHE::GetModelHash( const wxString& aModelFileName )
 
     return wxEmptyString;
 }
+
+
+S3D_CACHE* PROJECT::Get3DCacheManager( bool aUpdateProjDir )
+{
+    wxCriticalSectionLocker lock( lock3D_cacheManager );
+
+    // Get the existing cache from the project
+    S3D_CACHE* cache = dynamic_cast<S3D_CACHE*>( GetElem( ELEM_3DCACHE ) );
+
+    if( !cache )
+    {
+        // Create a cache if there is not one already
+        cache = new S3D_CACHE();
+
+        wxFileName cfgpath;
+        cfgpath.AssignDir( GetKicadConfigPath() );
+        cfgpath.AppendDir( wxT( "3d" ) );
+
+        cache->SetProgramBase( &Pgm() );
+        cache->Set3DConfigDir( cfgpath.GetFullPath() );
+
+        SetElem( ELEM_3DCACHE, cache );
+        aUpdateProjDir = true;
+    }
+
+    if( aUpdateProjDir )
+        cache->SetProjectDir( GetProjectPath() );
+
+    return cache;
+}
+
+
+FILENAME_RESOLVER* PROJECT::Get3DFilenameResolver()
+{
+    return Get3DCacheManager()->GetResolver();
+}

3d-viewer/3d_cache/3d_cache.h

@@ -29,24 +29,29 @@
 #ifndef CACHE_3D_H
 #define CACHE_3D_H
 
+#include "3d_info.h"
+#include <core/typeinfo.h>
+#include "kicad_string.h"
 #include <list>
 #include <map>
-#include <wx/string.h>
-#include "kicad_string.h"
-#include "filename_resolver.h"
-#include "3d_info.h"
 #include "plugins/3dapi/c3dmodel.h"
-
+#include <project.h>
+#include <wx/string.h>
 
 class  PGM_BASE;
-class  S3D_CACHE;
 class  S3D_CACHE_ENTRY;
 class  SCENEGRAPH;
 class  FILENAME_RESOLVER;
 class  S3D_PLUGIN_MANAGER;
 
 
-class S3D_CACHE
+/**
+ * S3D_CACHE
+ *
+ * Cache for storing the 3D shapes. This cache is able to be stored as a project
+ * element (since it inherits from PROJECT::_ELEM).
+ */
+class S3D_CACHE : public PROJECT::_ELEM
 {
 private:
     /// cache entries
@@ -110,6 +115,11 @@ public:
     S3D_CACHE();
     virtual ~S3D_CACHE();
 
+    KICAD_T Type() override
+    {
+        return S3D_CACHE_T;
+    }
+
     /**
      * Function Set3DConfigDir
      * Sets the configuration directory to be used by the

3d-viewer/3d_cache/3d_cache_wrapper.cpp

@@ -1,76 +0,0 @@
-/*
- * This program source code file is part of KiCad, a free EDA CAD application.
- *
- * Copyright (C) 2015-2016 Cirilo Bernardo <cirilo.bernardo@gmail.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, you may find one here:
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- * or you may search the http://www.gnu.org website for the version 2 license,
- * or you may write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
- */
-
-
-#include <common.h>
-#include <pgm_base.h>
-#include "3d_cache_wrapper.h"
-
-static wxCriticalSection lock3D_wrapper;
-
-CACHE_WRAPPER::CACHE_WRAPPER()
-{
-    return;
-}
-
-
-CACHE_WRAPPER::~CACHE_WRAPPER()
-{
-    return;
-}
-
-
-FILENAME_RESOLVER* PROJECT::Get3DFilenameResolver()
-{
-    return Get3DCacheManager()->GetResolver();
-}
-
-
-S3D_CACHE* PROJECT::Get3DCacheManager( bool updateProjDir )
-{
-    wxCriticalSectionLocker lock( lock3D_wrapper );
-    CACHE_WRAPPER* cw = (CACHE_WRAPPER*) GetElem( ELEM_3DCACHE );
-    S3D_CACHE* cache = dynamic_cast<S3D_CACHE*>( cw );
-
-    // check that we get the expected type of object or NULL
-    wxASSERT( !cw || cache );
-
-    if( !cw )
-    {
-        cw = new CACHE_WRAPPER;
-        cache = dynamic_cast<S3D_CACHE*>( cw );
-
-        wxFileName cfgpath;
-        cfgpath.AssignDir( GetKicadConfigPath() );
-        cfgpath.AppendDir( wxT( "3d" ) );
-        cache->SetProgramBase( &Pgm() );
-        cache->Set3DConfigDir( cfgpath.GetFullPath() );
-        SetElem( ELEM_3DCACHE, cw );
-        updateProjDir = true;
-    }
-
-    if( updateProjDir )
-        cache->SetProjectDir( GetProjectPath() );
-
-    return cache;
-}

3d-viewer/3d_cache/3d_cache_wrapper.h

@@ -1,39 +0,0 @@
-/*
- * This program source code file is part of KiCad, a free EDA CAD application.
- *
- * Copyright (C) 2015 Cirilo Bernardo <cirilo.bernardo@gmail.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, you may find one here:
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- * or you may search the http://www.gnu.org website for the version 2 license,
- * or you may write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
- */
-
-#ifndef CACHE_WRAPPER_3D_H
-#define CACHE_WRAPPER_3D_H
-
-#include <project.h>
-#include "3d_cache.h"
-
-class CACHE_WRAPPER : public S3D_CACHE, public PROJECT::_ELEM
-{
-public:
-    KICAD_T Type() override { return CACHE_WRAPPER_T; }
-
-    CACHE_WRAPPER();
-    virtual ~CACHE_WRAPPER();
-};
-
-#endif  // CACHE_WRAPPER_3D_H

3d-viewer/3d_cache/dialogs/dlg_select_3dmodel.cpp

@@ -32,6 +32,7 @@
 #include "3d_cache_dialogs.h"
 #include <3d_model_viewer/c3d_model_viewer.h>
 #include <common_ogl/cogl_att_list.h>
+#include <filename_resolver.h>
 #include <pcbnew/class_module.h>
 
 #define ID_FILE_TREE    ( wxID_LAST + 1 )

3d-viewer/CMakeLists.txt

@@ -29,7 +29,6 @@ set( DIR_3D_PLUGINS ${CMAKE_SOURCE_DIR}/plugins/ldr )
 set(3D-VIEWER_SRCS
     ${DIR_3D_PLUGINS}/pluginldr.cpp
     ${DIR_3D_PLUGINS}/3d/pluginldr3D.cpp
-    3d_cache/3d_cache_wrapper.cpp
     3d_cache/3d_cache.cpp
     3d_cache/3d_plugin_manager.cpp
     ${DIR_DLG}/3d_cache_dialogs.cpp

include/core/typeinfo.h

@@ -198,7 +198,7 @@ enum KICAD_T
     FP_LIB_TABLE_T,
     PART_LIBS_T,
     SEARCH_STACK_T,
-    CACHE_WRAPPER_T,
+    S3D_CACHE_T,
 
     // End value
     MAX_STRUCT_TYPE_ID

pcbnew/exporters/export_vrml.cpp

@@ -40,6 +40,7 @@
 #include "class_track.h"
 #include "class_zone.h"
 #include "convert_to_biu.h"
+#include <filename_resolver.h>
 #include "gr_text.h"
 #include "macros.h"
 #include "pgm_base.h"