KiCad PCB EDA Suite
sch_io_mgr.cpp
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1 /*
2  * This program source code file is part of KiCad, a free EDA CAD application.
3  *
4  * Copyright (C) 2016 CERN
5  * Copyright (C) 2016-2017 KiCad Developers, see change_log.txt for contributors.
6  *
7  * @author Wayne Stambaugh <stambaughw@gmail.com>
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version 2
12  * of the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License along
20  * with this program. If not, see <http://www.gnu.org/licenses/>.
21  */
22 
23 #include <wx/filename.h>
24 #include <wx/uri.h>
25 
26 #include <sch_io_mgr.h>
27 #include <sch_legacy_plugin.h>
28 #include <sch_eagle_plugin.h>
29 
31 
32 #define FMT_UNIMPLEMENTED _( "Plugin \"%s\" does not implement the \"%s\" function." )
33 #define FMT_NOTFOUND _( "Plugin type \"%s\" is not found." )
34 
35 
36 
37 // Some day plugins might be in separate DLL/DSOs, simply because of numbers of them
38 // and code size. Until then, use the simplest method:
39 
40 // This implementation is one of two which could be done.
41 // The other one would cater to DLL/DSO's. But since it would be nearly
42 // impossible to link a KICAD type DLL/DSO right now without pulling in all
43 // ::Draw() functions, I forgo that option temporarily.
44 
45 // Some day it may be possible to have some built in AND some DLL/DSO
46 // plugins coexisting.
47 
48 
49 SCH_PLUGIN* SCH_IO_MGR::FindPlugin( SCH_FILE_T aFileType )
50 {
51  // This implementation is subject to change, any magic is allowed here.
52  // The public SCH_IO_MGR API is the only pertinent public information.
53 
54  switch( aFileType )
55  {
56  case SCH_LEGACY:
57  return new SCH_LEGACY_PLUGIN();
58  case SCH_EAGLE:
59  return new SCH_EAGLE_PLUGIN();
60  }
61 
62  return NULL;
63 }
64 
65 
67 {
68  // This function is a place holder for a future point in time where
69  // the plugin is a DLL/DSO. It could do reference counting, and then
70  // unload the DLL/DSO when count goes to zero.
71 
72  delete aPlugin;
73 }
74 
75 
76 const wxString SCH_IO_MGR::ShowType( SCH_FILE_T aType )
77 {
78  // keep this function in sync with EnumFromStr() relative to the
79  // text spellings. If you change the spellings, you will obsolete
80  // library tables, so don't do change, only additions are ok.
81 
82  switch( aType )
83  {
84  default:
85  return wxString::Format( _( "Unknown SCH_FILE_T value: %d" ), aType );
86 
87  case SCH_LEGACY:
88  return wxString( wxT( "Legacy" ) );
89 
90  case SCH_EAGLE:
91  return wxString( wxT( "EAGLE" ) );
92  }
93 }
94 
95 
96 SCH_IO_MGR::SCH_FILE_T SCH_IO_MGR::EnumFromStr( const wxString& aType )
97 {
98  // keep this function in sync with ShowType() relative to the
99  // text spellings. If you change the spellings, you will obsolete
100  // library tables, so don't do change, only additions are ok.
101 
102  if( aType == wxT( "Legacy" ) )
103  return SCH_LEGACY;
104  else if( aType == wxT( "EAGLE" ) )
105  return SCH_EAGLE;
106 
107  // wxASSERT( blow up here )
108 
109  return SCH_FILE_T( -1 );
110 }
111 
112 
113 const wxString SCH_IO_MGR::GetFileExtension( SCH_FILE_T aFileType )
114 {
115  wxString ext = wxEmptyString;
116  SCH_PLUGIN* plugin = FindPlugin( aFileType );
117 
118  if( plugin != NULL )
119  {
120  ext = plugin->GetFileExtension();
121  ReleasePlugin( plugin );
122  }
123 
124  return ext;
125 }
126 
127 
128 SCH_IO_MGR::SCH_FILE_T SCH_IO_MGR::GuessPluginTypeFromLibPath( const wxString& aLibPath )
129 {
130  SCH_FILE_T ret = SCH_LEGACY; // default guess, unless detected otherwise.
131  wxFileName fn( aLibPath );
132 
133  if( fn.GetExt() == SchematicFileExtension )
134  {
135  ret = SCH_LEGACY;
136  }
137 
138  return ret;
139 }
140 
141 
142 SCH_SHEET* SCH_IO_MGR::Load( SCH_FILE_T aFileType, const wxString& aFileName, KIWAY* aKiway,
143  SCH_SHEET* aAppendToMe, const PROPERTIES* aProperties )
144 {
145  // release the SCH_PLUGIN even if an exception is thrown.
146  SCH_PLUGIN::SCH_PLUGIN_RELEASER pi( FindPlugin( aFileType ) );
147 
148  if( (SCH_PLUGIN*) pi ) // test pi->plugin
149  {
150  return pi->Load( aFileName, aKiway, aAppendToMe, aProperties ); // virtual
151  }
152 
153  THROW_IO_ERROR( wxString::Format( FMT_NOTFOUND, ShowType( aFileType ).GetData() ) );
154 }
155 
156 
157 void SCH_IO_MGR::Save( SCH_FILE_T aFileType, const wxString& aFileName,
158  SCH_SCREEN* aSchematic, KIWAY* aKiway, const PROPERTIES* aProperties )
159 {
160  // release the SCH_PLUGIN even if an exception is thrown.
161  SCH_PLUGIN::SCH_PLUGIN_RELEASER pi( FindPlugin( aFileType ) );
162 
163  if( (SCH_PLUGIN*) pi ) // test pi->plugin
164  {
165  pi->Save( aFileName, aSchematic, aKiway, aProperties ); // virtual
166  return;
167  }
168 
169  THROW_IO_ERROR( wxString::Format( FMT_NOTFOUND, ShowType( aFileType ).GetData() ) );
170 }
171 
172 
173 DECLARE_ENUM_VECTOR( SCH_IO_MGR, SCH_FILE_T )
Class SCH_IO_MGR is a factory which returns an instance of a SCH_PLUGIN.
Definition: sch_io_mgr.h:46
static SCH_FILE_T GuessPluginTypeFromLibPath(const wxString &aLibPath)
Return a plugin type given a footprint library's libPath.
Definition: sch_io_mgr.cpp:128
static const wxString ShowType(SCH_FILE_T aFileType)
Return a brief name for a plugin, given aFileType enum.
Definition: sch_io_mgr.cpp:76
virtual SCH_SHEET * Load(const wxString &aFileName, KIWAY *aKiway, SCH_SHEET *aAppendToMe=NULL, const PROPERTIES *aProperties=NULL)
Load information from some input file format that this SCH_PLUGIN implementation knows about...
Definition: sch_plugin.cpp:50
static void Save(SCH_FILE_T aFileType, const wxString &aFileName, SCH_SCREEN *aSchematic, KIWAY *aKiway, const PROPERTIES *aProperties=NULL)
Write either a full aSchematic to a storage file in a format that this implementation knows about...
Definition: sch_io_mgr.cpp:157
Class SCH_EAGLE_PLUGIN is a SCH_PLUGIN derivation for loading 6.x+ Eagle schematic files...
Class PROPERTIES is a name/value tuple with unique names and optional values.
Definition: properties.h:34
#define FMT_NOTFOUND
Definition: sch_io_mgr.cpp:33
Base class that schematic file and library loading and saving plugins should derive from...
Definition: sch_io_mgr.h:188
#define DECLARE_ENUM_VECTOR(class_name, enum_name)
Definition: enum_vector.h:43
static const wxString GetFileExtension(SCH_FILE_T aFileType)
Return the file extension for aFileType.
Definition: sch_io_mgr.cpp:113
The common library.
Class KIWAY is a minimalistic software bus for communications between various DLLs/DSOs (DSOs) within...
Definition: kiway.h:257
A SCH_PLUGIN derivation for loading schematic files created before the new s-expression file format...
Sheet symbol placed in a schematic, and is the entry point for a sub schematic.
Definition: sch_sheet.h:209
static SCH_SHEET * Load(SCH_FILE_T aFileType, const wxString &aFileName, KIWAY *aKiway, SCH_SHEET *aAppendToMe=NULL, const PROPERTIES *aProperties=NULL)
Load the requested SCH_PLUGIN and if found, calls the SCH_PLUGIN->Load(..) function on it using the a...
Definition: sch_io_mgr.cpp:142
Helper object to release a SCH_PLUGIN in the context of a potential thrown exception through its dest...
Definition: sch_io_mgr.h:523
virtual void Save(const wxString &aFileName, SCH_SCREEN *aSchematic, KIWAY *aKiway, const PROPERTIES *aProperties=NULL)
Write aSchematic to a storage file in a format that this SCH_PLUGIN implementation knows about...
Definition: sch_plugin.cpp:58
void Format(OUTPUTFORMATTER *out, int aNestLevel, int aCtl, CPTREE &aTree)
Function Format outputs a PTREE into s-expression format via an OUTPUTFORMATTER derivative.
Definition: ptree.cpp:205
static SCH_FILE_T EnumFromStr(const wxString &aFileType)
Return the #SCH_FILE_T from the corresponding plugin type name: "kicad", "legacy", etc.
Definition: sch_io_mgr.cpp:96
virtual const wxString GetFileExtension() const =0
Returns the file extension for the SCH_PLUGIN.
#define THROW_IO_ERROR(msg)
Definition: ki_exception.h:38
static void ReleasePlugin(SCH_PLUGIN *aPlugin)
Release a SCH_PLUGIN back to the system, and may cause it to be unloaded from memory.
Definition: sch_io_mgr.cpp:66
const wxString SchematicFileExtension