wxString, wxPoint and wxChar wrappers

pcbnew/CMakeLists.txt

@@ -18,6 +18,7 @@ include_directories(
     ${Boost_INCLUDE_DIR}
     ../polygon
     ../common/dialogs
+    ./scripting
     ${INC_AFTER}
     )
 
@@ -224,6 +225,7 @@ set(PCBNEW_COMMON_SRCS
 set(PCBNEW_SCRIPTING_SRCS
    kicad_wrap.cxx
    pcbnew_wrap.cxx
+   scripting/helpers.cpp
    )
 
 ##

pcbnew/scripting/helpers.cpp

+#include <Python.h>
+#include <wx/intl.h>
+#include <wx/string.h>
+
+#define WX_DEFAULTENCODING_SIZE 64
+
+static char wxPythonEncoding[WX_DEFAULTENCODING_SIZE] = "ascii";
+
+wxString* newWxStringFromPy(PyObject* src) {
+
+    bool must_unref_str=false;
+
+    wxString* result = NULL;
+    PyObject *obj=src;
+
+#if wxUSE_UNICODE
+    bool must_unref_obj=false;    
+    // Unicode string to python unicode string 
+    PyObject* uni_str = src;
+
+    // if not an str or unicode, try to str(src)
+    if (!PyString_Check(src) && !PyUnicode_Check(src)) 
+    {
+        obj = PyObject_Str(src);
+	must_unref_obj = true;
+        if (PyErr_Occurred()) return NULL;
+    }
+
+    if (PyString_Check(obj)) 
+    {
+        uni_str = PyUnicode_FromEncodedObject(obj, wxPythonEncoding, "strict");
+        must_unref_str = true;
+        if (PyErr_Occurred()) return NULL;
+    }
+
+    result = new wxString();
+    size_t len = PyUnicode_GET_SIZE(uni_str);
+    if (len) 
+    {
+        PyUnicode_AsWideChar((PyUnicodeObject*)uni_str,
+                             wxStringBuffer(*result, len),len);
+    }
+
+    if (must_unref_str) Py_DECREF(uni_str);
+    if (must_unref_obj) Py_DECREF(obj);
+#else
+    // normal string (or object) to normal python string 
+    PyObject* str = src;
+
+    if (PyUnicode_Check(src)) // if it's unicode convert to normal string
+    {
+        str = PyUnicode_AsEncodedString(src, wxPythonEncoding, "strict");
+        if (PyErr_Occurred()) return NULL;
+    }
+    else if (!PyString_Check(src)) // if it's not a string, str(obj)
+    {
+        str = PyObject_Str(src);
+ 	must_unref_str = true;
+        if (PyErr_Occurred()) return NULL;
+    }
+
+    // get the string pointer and size
+    char* str_ptr; 
+    Py_ssize_t str_size;
+    PyString_AsStringAndSize(str, &str_ptr, &str_size);
+
+    // build the wxString from our pointer / size
+    result = new wxString(str_ptr, str_size);
+
+    if (must_unref_str) Py_DECREF(str);
+#endif 
+
+    return result;
+}
+
+
+wxString Py2wxString(PyObject* src)
+{
+    wxString result;
+    wxString* resPtr = newWxStringFromPy(src);    
+    
+    // In case of exception clear it and return an empty string  
+    if (resPtr==NULL) 
+    {
+	PyErr_Clear();
+	return wxEmptyString;
+    }
+    
+    result = *resPtr;
+
+    delete resPtr;    
+
+    return result;
+}
+
+
+PyObject* wx2PyString(const wxString& src)
+{
+    PyObject* str;
+#if wxUSE_UNICODE
+    str = PyUnicode_FromWideChar(src.c_str(), src.Len());
+#else
+    str = PyString_FromStringAndSize(src.c_str(), src.Len());
+#endif
+    return str;
+}
+
+
+
+void wxSetDefaultPyEncoding(const char* encoding)
+{
+    strncpy(wxPythonEncoding, encoding, WX_DEFAULTENCODING_SIZE);
+}
+
+const char* wxGetDefaultPyEncoding()
+{
+    return wxPythonEncoding;
+}
+

pcbnew/scripting/kicad.i

@@ -17,6 +17,7 @@
 	#include <dlist.h>
 	#include <base_struct.h>
 	#include <common.h>
+	#include <wx_helpers.h>
 
 %}
 

pcbnew/scripting/pcbnew.i

@@ -8,6 +8,7 @@
 	#include <class_track.h>	
 	#include <class_pad.h>
 	#include <dlist.h>
+        #include <wx_helpers.h>
 
 
 	BOARD *GetBoard();

pcbnew/scripting/tests/test2.py

+pcb = pcbnew.GetBoard()
+
+m = pcb.m_Modules.item()
+
+while m:
+	print m.GetReference(),"(",m.GetValue(),") at ", m.GetPosition()
+        m.SetValue("pepe")
+        p  = m.m_Pads.item()
+	while p:
+		print "    pad",p.GetPadName(), "at",p.GetPosition()
+		p = p.Next()
+
+	m = m.Next()		
+

pcbnew/scripting/wx.i

 
+%{
+#include <wx_helpers.h>
+%}
+
+// encoding setup, ascii by default ///////////////////////////////////////////
+
+void wxSetDefaultPyEncoding(const char* encoding);
+const char* wxGetDefaultPyEncoding();
+
+// wxPoint class wrapper to (xx,yy) tuple /////////////////////////////////////
 
 class wxPoint
-{
+{	
 public:
     int x, y;
-
-
     wxPoint(int xx, int yy);
     ~wxPoint();
-    
-    
     %extend {
-        
-        wxPoint __add__(const wxPoint& pt) {
-            return *self + pt;
-        }
-
-        
-        
-        wxPoint __sub__(const wxPoint& pt) {
-            return *self - pt;
-        }
+        wxPoint __add__(const wxPoint& pt) {   return *self + pt;  }
+        wxPoint __sub__(const wxPoint& pt) {   return *self - pt;  }
 
-
-        
-        void Set(long x, long y) {
-            self->x = x;
-            self->y = y;
-        }
-
-        
-        PyObject* Get() {
-            //wxPyBlock_t blocked = wxPyBeginBlockThreads();
+        void Set(long x, long y) {  self->x = x;     self->y = y;  }
+        PyObject* Get() 
+	{
             PyObject* tup = PyTuple_New(2);
             PyTuple_SET_ITEM(tup, 0, PyInt_FromLong(self->x));
             PyTuple_SET_ITEM(tup, 1, PyInt_FromLong(self->y));
-            //wxPyEndBlockThreads(blocked);
             return tup;
         }
     }
 
     %pythoncode { 
-    def __eq__(self,other):		 return (self.x==other.x and self.y==other.y)
-    def __ne__(self,other):               return not (self==other)
-    def __str__(self):                   return str(self.Get())
-    def __repr__(self):                  return 'wx.Point'+str(self.Get())
-    def __len__(self):                   return len(self.Get())
-    def __getitem__(self, index):        return self.Get()[index]
+    def __eq__(self,other):            return (self.x==other.x and self.y==other.y)
+    def __ne__(self,other):            return not (self==other)
+    def __str__(self):                 return str(self.Get())
+    def __repr__(self):                return 'wxPoint'+str(self.Get())
+    def __len__(self):                 return len(self.Get())
+    def __getitem__(self, index):      return self.Get()[index]
     def __setitem__(self, index, val):
-        if index == 0: self.x = val
-        elif index == 1: self.y = val
-        else: raise IndexError
+        if index == 0: 
+            self.x = val
+        elif index == 1: 
+            self.y = val
+        else: 
+            raise IndexError
     def __nonzero__(self):               return self.Get() != (0,0)
-    __safe_for_unpickling__ = True
+
     }
 };
 
+
+// wxChar wrappers ///////////////////////////////////////////////////////////
+
+%typemap(in) wxChar {   wxString str = Py2wxString($input); $1 = str[0];   }
+%typemap(out) wxChar {  wxString str($1);      $result = wx2PyString(str); }
+
+// wxString wrappers /////////////////////////////////////////////////////////
+
+%typemap(out) wxString& 
+{
+%#if wxUSE_UNICODE
+    $result = PyUnicode_FromWideChar($1->c_str(), $1->Len());
+%#else
+    $result = PyString_FromStringAndSize($1->c_str(), $1->Len());
+%#endif
+}
+
+%apply wxString& { wxString* }
+
+%typemap(out) wxString {
+%#if wxUSE_UNICODE
+    $result = PyUnicode_FromWideChar($1.c_str(), $1.Len());
+%#else
+    $result = PyString_FromStringAndSize($1.c_str(), $1.Len());
+%#endif
+}
+
+%typemap(varout) wxString {
+%#if wxUSE_UNICODE
+    $result = PyUnicode_FromWideChar($1.c_str(), $1.Len());
+%#else
+    $result = PyString_FromStringAndSize($1.c_str(), $1.Len());
+%#endif
+}
+
+%typemap(in) wxString& (bool temp=false) 
+{
+    $1 = newWxStringFromPy($input);
+    if ($1 == NULL) SWIG_fail;
+    temp = true;
+}
+
+%typemap(freearg) wxString& 
+{
+    if (temp$argnum)
+        delete $1;
+}
+
+
+%typemap(in) wxString {
+    wxString* sptr = newWxStringFromPy($input);
+    if (sptr == NULL) SWIG_fail;
+    $1 = *sptr;
+    delete sptr;
+}
+
+%typemap(typecheck, precedence=SWIG_TYPECHECK_POINTER) wxString& {
+    $1 = PyString_Check($input) || PyUnicode_Check($input);
+}
+
+
+
+
+

pcbnew/scripting/wx_helpers.h

+#ifndef __wx_helpers_h
+#define __wx_helpers_h
+
+#include <Python.h>
+#include <wx/intl.h>
+#include <wx/string.h>
+
+wxString* newWxStringFromPy(PyObject* source);
+wxString Py2wxString(PyObject* source);
+PyObject* wx2PyString(const wxString& src);
+
+void wxSetDefaultPyEncoding(const char* encoding);
+const char* wxGetDefaultPyEncoding();
+
+#endif