#--------------------------------------------------------------------------- # Name: etgtools/tweaker_tools.py # Author: Robin Dunn # # Created: 3-Nov-2010 # Copyright: (c) 2010-2020 by Total Control Software # License: wxWindows License #--------------------------------------------------------------------------- """ Some helpers and utility functions that can assist with the tweaker stage of the ETG scripts. """ import enum import etgtools as extractors from .generators import textfile_open import keyword import re import sys, os import copy import textwrap from typing import NamedTuple, Optional, Tuple, Union isWindows = sys.platform.startswith('win') magicMethods = { 'operator!=' : '__ne__', 'operator==' : '__eq__', 'operator+' : '__add__', 'operator-' : '__sub__', 'operator*' : '__mul__', 'operator/' : '__div__', 'operator+=' : '__iadd__', 'operator-=' : '__isub__', 'operator*=' : '__imul__', 'operator/=' : '__idiv__', 'operator bool' : '__int__', # Why not __nonzero__? # TODO: add more } class AutoConversionInfo(NamedTuple): convertables: Tuple[str, ...] # String type-hints for each of the types that can be automatically converted to this class code: str # Code that will be added to SIP for this conversion class ParameterType(enum.Enum): VAR_ARGS = enum.auto() KWARGS = enum.auto() POSITIONAL_ONLY = enum.auto() DEFAULT = enum.auto() class MethodType(enum.Enum): STATIC_METHOD = enum.auto() # Class @staticmethod method CLASS_METHOD = enum.auto() # Class @classmethod method METHOD = enum.auto() # Class regular method FUNCTION = enum.auto() # non-class function class Signature: """Like inspect.Signature, but a bit simpler because we need it only for a few purposes: - Creation from a C++ args string - We *don't* want stringized (ie: all of them) type-hints to be evaluated, since we're processing them in a context where most of them will be unresolvable. """ class Parameter: __slots__ = ('name', 'type_hint', 'default', 'position_type', ) name: str type_hint: Optional[str] default: Optional[str] position_type: ParameterType def __init__(self, name: str, type_hint: Optional[str] = None, default: Optional[str] = None, position_type: ParameterType = ParameterType.DEFAULT) -> None: if name.startswith('**'): name = name[2:] position_type = ParameterType.KWARGS elif name.startswith('*'): name = name[1:] position_type = ParameterType.VAR_ARGS type_hint = type_hint.replace('::', '.') if type_hint else None default = default.replace('::', '.') if default else None self.name = name self.type_hint = type_hint self.default = default self.position_type = position_type @property def _position_marking(self) -> str: if self.position_type is ParameterType.KWARGS: return '**' elif self.position_type is ParameterType.VAR_ARGS: return '*' return '' def untyped(self) -> str: if self.default is None: return f'{self._position_marking}{self.name}' else: return f'{self._position_marking}{self.name}={self.default}' def __str__(self) -> str: if self.type_hint is None and self.default is None: return f'{self._position_marking}{self.name}' elif self.type_hint is None: return f'{self._position_marking}{self.name}={self.default}' elif self.default is None: return f'{self._position_marking}{self.name}: {self.type_hint}' else: return f'{self._position_marking}{self.name}: {self.type_hint}={self.default}' def make_optional(self) -> None: if self.type_hint is not None and not self.type_hint.startswith('Optional['): self.type_hint = f'Optional[{self.type_hint}]' __slots__ = ('_method_name', 'return_type', '_parameters', '_method_type', ) _method_name: str return_type: Optional[str] _parameters: dict[str, Parameter] _method_type: MethodType def __init__(self, method_name: str, *parameters: Parameter, return_type: Optional[str] = None, method_type: MethodType = MethodType.METHOD) -> None: self._parameters = { p.name: p for p in parameters } self.return_type = return_type.replace('::', '.') if return_type else None self._method_type = method_type self.method_name = method_name @property def method_name(self) -> str: return self._method_name @method_name.setter def method_name(self, value: str, /) -> None: self._method_name = magicMethods.get(value, value) def __getitem__(self, key: Union[str, int]) -> Parameter: """Get parameter by name or by index. Indexing is into the paramters skips 'cls' and 'self' for classmethods and methods. """ if isinstance(key, int): key = list(self._parameters)[key] if isinstance(key, str): return self._parameters[key] else: raise TypeError(f'Indexing must be via parameter name or index, got {key}') def __iter__(self): return iter(self._parameters.values()) def __contains__(self, parameter_name: str) -> bool: return parameter_name in self._parameters def args_string(self, typed: bool = True, include_selfcls: bool = False) -> str: """Get a string of just the parameters needed for the method signature, optionally with 'self' or 'cls' where applicable, and type-hints """ if include_selfcls and self.is_classmethod: parameters = (type(self).Parameter('cls'), *self._parameters.values()) elif include_selfcls and self.is_method: parameters = (type(self).Parameter('self'), *self._parameters.values()) else: parameters = self._parameters.values() stringizer = str if typed else type(self).Parameter.untyped return_type = f' -> {self.return_type}' if self.return_type else '' return f"({', '.join(map(stringizer, parameters))}){return_type}" def signature(self, typed: bool = True) -> str: """Get the full signature for the function/method, including method and all required python syntax, optionally including all type-hints. """ return f'def {self.method_name}{self.args_string(typed, True)}:' def __str__(self) -> str: return self.signature() def definition_lines(self, typed: bool = True) -> list[str]: """return the lines required to write the full method definition, including decorators """ if self.is_staticmethod: lines = ['@staticmethod'] elif self.is_classmethod: lines = ['@classmethod'] else: lines = [] lines.append(self.signature(typed)) return lines @property def is_staticmethod(self) -> bool: return self._method_type is MethodType.STATIC_METHOD @property def is_classmethod(self) -> bool: return self._method_type is MethodType.CLASS_METHOD @property def is_method(self) -> bool: return self._method_type is MethodType.METHOD @property def is_function(self) -> bool: return self._method_type is MethodType.FUNCTION def removeWxPrefixes(node): """ Rename items with a 'wx' prefix to not have the prefix. If the back-end generator supports auto-renaming then it can ignore the pyName value for those that are changed here. We'll still change them all in case the pyNames are needed elsewhere. """ for item in node.allItems(): if not item.pyName \ and item.name.startswith('wx') \ and not item.name.startswith('wxEVT_') \ and not isinstance(item, (extractors.TypedefDef, extractors.ParamDef, extractors.MethodDef )): # TODO: Any others? item.pyName = item.name[2:] item.wxDropped = True if item.name.startswith('wxEVT_') and 'CATEGORY' not in item.name: # give these their actual name so the auto-renamer won't touch them item.pyName = item.name def removeWxPrefix(name): """ Remove the "wx" prefix from a name, except for those which should keep it. """ if name.startswith('wx.') or name.startswith('``wx.'): return name if name.startswith('wx') and not name.startswith('wxEVT_'): name = name[2:] if name.startswith('``wx') and not name.startswith('``wxEVT_'): name = name[0:2] + name[4:] return name class FixWxPrefix(object): """ A mixin class that can help with removing the wx prefix, or changing it in to a "wx.Name" depending on where it is being used from. """ _coreTopLevelNames = None _auto_conversions: dict[str, Tuple[str, ...]] = {} @classmethod def register_autoconversion(cls, class_name: str, convertables: Tuple[str, ...]) -> None: cls._auto_conversions[class_name] = convertables def fixWxPrefix(self, name, checkIsCore=False): # By default remove the wx prefix like normal name = removeWxPrefix(name) if not checkIsCore or self.isCore: return name # Otherwise, if we're not processing the core module currently then check # if the name is local or if it resides in core. If it does then return # the name as 'wx.Name' if FixWxPrefix._coreTopLevelNames is None: self._getCoreTopLevelNames() testName = name if '(' in name: testName = name[:name.find('(')] testName = testName.split('.')[0] if testName in FixWxPrefix._coreTopLevelNames: return 'wx.'+name else: return name def _getCoreTopLevelNames(self): # Since the real wx.core module may not exist yet, and since actually # executing code at this point is probably a bad idea, try parsing the # core.pyi file and pulling the top level names from it. import ast def _processItem(item, names): if isinstance(item, ast.Assign): for t in item.targets: _processItem(t, names) elif isinstance(item, ast.Name): names.append(item.id) elif isinstance(item, ast.ClassDef): names.append(item.name) elif isinstance(item, ast.FunctionDef): names.append(item.name) elif isinstance(item, ast.AnnAssign): if isinstance(item.target, ast.Name): # Exclude typing TypeAlias's from detection if not (item.annotation == 'TypeAlias' and item.target.id.startswith('_')): names.append(item.target.id) names = list() filename = 'wx/core.pyi' with open(filename, 'rt', encoding='utf-8') as f: text = f.read() parseTree = ast.parse(text, filename) for item in parseTree.body: _processItem(item, names) FixWxPrefix._coreTopLevelNames = names def cleanName(self, name: str, is_expression: bool = False, fix_wx: bool = True) -> str: """Process a C++ name for use in Python code. In all cases, this means handling name collisions with Python keywords. For names that will be used for an identifier (ex: class, method, constant) - `is_expression` is False - this also includes the reserved constant names 'False', 'True', and 'None'. When `is_expression` is True, name are allowed to include special characters and the reserved constant names - this is intended for cleaning up type-hint expressions ans default value expressions. Finally, the 'wx.' prefix is added if needed. """ name = re.sub(r'(const(?![\w\d]))', '', name) # remove 'const', but not 'const'raints replacements = [' ', '*'] if not is_expression: replacements.extend(['&']) for txt in replacements: name = name.replace(txt, '') name = name.replace('::', '.') if not is_expression: name = re.sub(r'[^a-zA-Z0-9_\.]', '', name) if not (is_expression and name in ['True', 'False', 'None']) and keyword.iskeyword(name): name = f'_{name}' # Python keyword name collision name = name.strip() if fix_wx: return self.fixWxPrefix(name, True) else: return name def cleanType(self, type_name: str, is_input: bool = False) -> str: """Process a C++ type name for use as a type annotation in Python code. Handles translation of common C++ types to Python types, as well as a few specific wx types to Python types. """ double_type = 'float' long_type = 'int' type_map = { # Some types are guesses, marked with TODO to verify automatic # conversion actually happens. Also, these are the type-names # after processing by cleanName (so spaces are removed), or # after potentially lopping off an 'Array' prefix. # --String types 'String': 'str', 'Char': 'str', 'char': 'str', 'FileName': 'str', # TODO: check conversion # --Int types 'byte': 'int', 'short': 'int', 'Int': 'int', 'unsigned': 'int', 'unsignedchar': 'int', 'unsignedshort': 'int', 'unsignedint': 'int', 'time_t': 'int', 'size_t': 'int', 'Int32': 'int', 'long': long_type, 'unsignedlong': long_type, 'ulong': long_type, 'LongLong': long_type, # --Float types 'double': double_type, 'Double': double_type, # --Others 'void': 'Any', 'PyObject': 'Any', 'WindowID': 'int', # defined in wx/defs.h 'Coord': 'int', # defined in wx/types.h } type_name = self.cleanName(type_name) # Special handling of Vector types - if type_name.startswith('Vector<') and type_name.endswith('>'): # Special handling for 'Vector' types type_name = self.cleanType(type_name[7:-1]) return f'List[{type_name}]' if type_name.startswith('Array'): type_name = self.cleanType(type_name[5:]) if type_name: return f'List[{type_name}]' else: return 'list' allowed_types = self._auto_conversions.get(type_name, ()) if allowed_types and is_input: allowed_types = (type_name, *(self.cleanType(t) for t in allowed_types)) type_name = f"Union[{', '.join(allowed_types)}]" return type_map.get(type_name, type_name) def parseNameAndType(self, name_string: str, type_string: Optional[str], is_input: bool = False) -> Tuple[str, Optional[str]]: """Given an identifier name and an optional type annotation, process these per cleanName and cleanType. Further performs transforms on the identifier name that may be required due to the type annotation. Ex. The transformation "any_identifier : ..." -> "*args" requires modifying both the identifier name and the annotation. """ name_string = self.cleanName(name_string, fix_wx=False) if type_string: type_string = self.cleanType(type_string, is_input) if type_string == '...': name_string = '*args' type_string = None if not type_string: type_string = None return name_string, type_string def ignoreAssignmentOperators(node): """ Set the ignored flag for all class methods that are assignment operators """ for item in node.allItems(): if isinstance(item, extractors.MethodDef) and item.name == 'operator=': item.ignore() def ignoreAllOperators(node): """ Set the ignored flag for all class methods that are any kind of operator """ for item in node.allItems(): if isinstance(item, extractors.MethodDef) and item.name.startswith('operator'): item.ignore() def ignoreConstOverloads(node): """ If a method is overloaded and one of them only differs by const-ness, then ignore it. """ def _checkOverloads(item): overloads = item.all() for i in range(len(overloads)): for j in range(len(overloads)): if i == j: continue item1 = overloads[i] item2 = overloads[j] if item1.ignored or item2.ignored: continue if (item1.argsString.replace(' const', '').strip() == item2.argsString.replace(' const', '').strip()): if item1.isConst: item1.ignore() return elif item2.isConst: item2.ignore() return for item in node.items: if isinstance(item, extractors.MethodDef) and item.overloads: _checkOverloads(item) def addAutoProperties(node): """ Call klass.addAutoProperties for all classes in node with allowAutoProperties set and which do not already have properties added by hand in the tweaker code. """ for item in node.allItems(): if isinstance(item, extractors.ClassDef): if not item.allowAutoProperties: continue if len([i for i in item if isinstance(i, extractors.PropertyDef)]): continue item.addAutoProperties() def fixEventClass(klass, ignoreProtected=True): """ Add the extra stuff that an event class needs that are lacking from the interface headers. """ assert isinstance(klass, extractors.ClassDef) if klass.name != 'wxEvent': # Clone() in wxEvent is pure virtual, so we need to let the back-end # know that the other event classes have an implementation for it so # it won't think that they are abstract classes too. if not klass.findItem('Clone'): klass.addPublic('virtual wxEvent* Clone() const /Factory/;') else: klass.findItem('Clone').factory = True # Add a private assignment operator so the back-end (if it's watching out # for this) won't try to make copies by assignment. klass.addPrivateAssignOp() if not ignoreProtected: for item in klass.allItems(): if isinstance(item, extractors.MethodDef) and item.protection == 'protected': item.ignore(False) def fixWindowClass(klass, hideVirtuals=True, ignoreProtected=True): """ Do common tweaks for a window class. """ # NOTE: it may be okay to just do mustHaveApp for top-level windows # TODO: look into that possibility klass.mustHaveApp() # The ctor and Create method transfer ownership of the this pointer to the parent for func in klass.findAll(klass.name) + klass.findAll('Create'): if isinstance(func, extractors.MethodDef): # if a class has an empty ctor it might not have this parent = func.findItem('parent') if parent: parent.transferThis = True # if there is an id param give it a default id = func.findItem('id') or func.findItem('winid') if id and not id.default: id.default = 'wxID_ANY' # if there is a pos or size parameter without a default then give it one. p = func.findItem('pos') if p and not p.default: p.default = 'wxDefaultPosition' p = func.findItem('size') if p and not p.default: p.default = 'wxDefaultSize' if hideVirtuals: # There is no need to make all the C++ virtuals overridable in Python, and # hiding the fact that they are virtual from the backend generator will # greatly reduce the amount of code that needs to be generated. Remove all # the virtual flags, and then add it back to a select few. removeVirtuals(klass) addWindowVirtuals(klass) if not ignoreProtected: for item in klass.allItems(): if isinstance(item, extractors.MethodDef) and item.protection == 'protected': item.ignore(False) fixDefaultAttributesMethods(klass) def fixDefaultAttributesMethods(klass): if not klass.findItem('GetClassDefaultAttributes'): m = extractors.MethodDef( type='wxVisualAttributes', name='GetClassDefaultAttributes', isStatic=True, protection='public', items=[extractors.ParamDef( type='wxWindowVariant', name='variant', default='wxWINDOW_VARIANT_NORMAL')] ) klass.addItem(m) if klass.findItem('GetDefaultAttributes'): klass.find('GetDefaultAttributes').mustHaveApp() klass.find('GetClassDefaultAttributes').mustHaveApp() def fixTopLevelWindowClass(klass, hideVirtuals=True, ignoreProtected=True): """ Tweaks for TLWs """ klass.mustHaveApp() # TLW tweaks are a little different. We use the function annotation for # TransferThis instead of the argument annotation. klass.find(klass.name).findOverload('parent').transfer = True item = klass.findItem('Create') if item: item.transferThis = True # give the id param a default value for name in ['id', 'winid']: for item in [klass.findItem('%s.%s' % (klass.name, name)), klass.findItem('Create.%s' % name)]: if item: item.default = 'wxID_ANY' # give title param a default too if it needs it for item in [klass.findItem('%s.title' % klass.name), klass.findItem('Create.title')]: if item and not item.default: item.default = 'wxEmptyString' if hideVirtuals: removeVirtuals(klass) addWindowVirtuals(klass) if not ignoreProtected: for item in klass.allItems(): if isinstance(item, extractors.MethodDef) and item.protection == 'protected': item.ignore(False) fixDefaultAttributesMethods(klass) def fixSizerClass(klass): """ Remove all virtuals except for CalcMin and RecalcSizes. """ removeVirtuals(klass) klass.find('CalcMin').isVirtual = True klass.find('RepositionChildren').isVirtual = True try: klass.find('InformFirstDirection').isVirtual = True except extractors.ExtractorError: pass # in the wxSizer class it is pure-virtual if klass.name == 'wxSizer': klass.find('CalcMin').isPureVirtual = True def fixBookctrlClass(klass): """ Add declarations of the pure virtual methods from the base class. """ methods = [ ("GetPageImage", "virtual int GetPageImage(size_t nPage) const;"), ("SetPageImage", "virtual bool SetPageImage(size_t page, int image);"), ("GetPageText", "virtual wxString GetPageText(size_t nPage) const;"), ("SetPageText", "virtual bool SetPageText(size_t page, const wxString& text);"), ("GetSelection", "virtual int GetSelection() const;"), ("SetSelection", "virtual int SetSelection(size_t page);"), ("ChangeSelection", "virtual int ChangeSelection(size_t page);"), ("HitTest", "virtual int HitTest(const wxPoint& pt, long* flags /Out/ = NULL) const;"), ("InsertPage", "virtual bool InsertPage(size_t index, wxWindow * page, const wxString & text, bool select = false, int imageId = NO_IMAGE);"), ("DeleteAllPages", "virtual bool DeleteAllPages();") ] for name, decl in methods: if not klass.findItem(name): klass.addItem(extractors.WigCode(decl)) def fixItemContainerClass(klass, addIsSelected=True): """ Add declarations of the pure virtual methods from the base class. """ methods = [ ("GetCount", "virtual unsigned int GetCount() const;"), ("GetString", "virtual wxString GetString(unsigned int n) const;"), ("SetString", "virtual void SetString(unsigned int n, const wxString& s);"), ("SetSelection", "virtual void SetSelection(int n);"), ("GetSelection", "virtual int GetSelection() const;"), ] if addIsSelected: methods += [ ("IsSelected", "virtual bool IsSelected(int n) const;"), ] for name, decl in methods: if not klass.findItem(name): klass.addItem(extractors.WigCode(decl)) def fixHtmlSetFonts(klass): # Use wxArrayInt instead of a C array of ints. m = klass.find('SetFonts') m.find('sizes').type = 'const wxArrayInt&' m.find('sizes').default = '' m.argsString = '(const wxString & normal_face, const wxString & fixed_face, const wxArrayInt& sizes)' m.setCppCode("""\ if (sizes->GetCount() != 7) { wxPyErr_SetString(PyExc_ValueError, "Sequence of 7 integers expected."); return; } self->SetFonts(*normal_face, *fixed_face, &sizes->Item(0)); """) def fixSetStatusWidths(m): # We already have a MappedType for wxArrayInt, so just tweak the # interface to use that instead of an array size and a const int pointer. m.find('n').ignore() m.find('widths_field').type = 'const wxArrayInt&' m.find('widths_field').name = 'widths' m.argsString = '(int n, const wxArrayInt& widths)' m.setCppCode("""\ const int* ptr = &widths->front(); self->SetStatusWidths(widths->size(), ptr); """) def fixRefCountedClass(klass): # Set the Transfer annotation on the ctors, because the C++ objects # own themselves and will delete themselves when their C++ refcount # drops to zero. for item in klass.allItems(): if isinstance(item, extractors.MethodDef) and item.isCtor: item.transfer = True def fixTextClipboardMethods(klass): """ Adds virtual behavior to Copy/Cut/Paste/Undo/Redo methods, and their Can* counterparts, of the given class. :param ClassDef klass: The class to modify. """ for name in ('Cut', 'Copy', 'Paste', 'Undo', 'Redo'): for method in (name, "Can{}".format(name)): try: klass.find(method).isVirtual = True except extractors.ExtractorError: pass def fixDialogProperty(klass): """ Fix classes derived from EditorDialogProperty to ensure that their DisplayEditorDialog method is visible. """ m = klass.find('DisplayEditorDialog') m.ignore(False) m.find('value').inOut = True def removeVirtuals(klass): """ Sometimes methods are marked as virtual but probably don't ever need to be overridden from Python. This function will unset the virtual flag for all methods in a class, which can save some code-bloat in the wrapper code. """ assert isinstance(klass, extractors.ClassDef) for item in klass.allItems(): if isinstance(item, extractors.MethodDef): item.isVirtual = item.isPureVirtual = False def addWindowVirtuals(klass): """ Either turn the virtual flag back on or add a declaration for the subset of the C++ virtuals in wxWindow classes that we will be supporting. """ publicWindowVirtuals = [ ('GetClientAreaOrigin', 'wxPoint GetClientAreaOrigin() const'), ('Validate', 'bool Validate()'), ('TransferDataToWindow', 'bool TransferDataToWindow()'), ('TransferDataFromWindow', 'bool TransferDataFromWindow()'), ('InitDialog', 'void InitDialog()'), ('AcceptsFocus', 'bool AcceptsFocus() const'), ('AcceptsFocusRecursively', 'bool AcceptsFocusRecursively() const'), ('AcceptsFocusFromKeyboard', 'bool AcceptsFocusFromKeyboard() const'), ('AddChild', 'void AddChild( wxWindowBase *child )'), ('RemoveChild', 'void RemoveChild( wxWindowBase *child )'), ('InheritAttributes', 'void InheritAttributes()'), ('ShouldInheritColours', 'bool ShouldInheritColours() const'), ('OnInternalIdle', 'void OnInternalIdle()'), ('GetMainWindowOfCompositeControl', 'wxWindow *GetMainWindowOfCompositeControl()'), ('InformFirstDirection', 'bool InformFirstDirection(int direction, int size, int availableOtherDir)'), ('SetCanFocus', 'void SetCanFocus(bool canFocus)'), ('Destroy', 'bool Destroy()'), ('SetValidator', 'void SetValidator( const wxValidator &validator )'), ('GetValidator', 'wxValidator* GetValidator()'), ('EnableVisibleFocus', 'void EnableVisibleFocus(bool enabled)'), ## What about these? #bool HasMultiplePages() const #void UpdateWindowUI(long flags = wxUPDATE_UI_NONE); #void DoUpdateWindowUI(wxUpdateUIEvent& event) ; ] if isWindows: # does not compile on GTK and macOS. publicWindowVirtuals.append( ('CreateAccessible', 'wxAccessible* CreateAccessible()') ) protectedWindowVirtuals = [ ('ProcessEvent', 'bool ProcessEvent(wxEvent & event)'), ('DoEnable', 'void DoEnable(bool enable)'), ('DoGetPosition', 'void DoGetPosition(int *x, int *y) const'), ('DoGetSize', 'void DoGetSize(int *width, int *height) const'), ('DoGetClientSize', 'void DoGetClientSize(int *width, int *height) const'), ('DoGetBestSize', 'wxSize DoGetBestSize() const'), ('DoGetBestClientSize', 'wxSize DoGetBestClientSize() const'), ('DoSetSize', 'void DoSetSize(int x, int y, int width, int height, int sizeFlags)'), ('DoSetClientSize', 'void DoSetClientSize(int width, int height)'), ('DoSetSizeHints', 'void DoSetSizeHints( int minW, int minH, int maxW, int maxH, int incW, int incH )'), ('DoMoveWindow', 'void DoMoveWindow(int x, int y, int width, int height)'), ('DoSetWindowVariant', 'void DoSetWindowVariant( wxWindowVariant variant)'), ('GetDefaultBorder', 'wxBorder GetDefaultBorder() const'), ('GetDefaultBorderForControl','wxBorder GetDefaultBorderForControl() const'), ('DoFreeze', 'void DoFreeze()'), ('DoThaw', 'void DoThaw()'), ('HasTransparentBackground', 'bool HasTransparentBackground()'), ('TryBefore', 'bool TryBefore(wxEvent& event)'), ('TryAfter', 'bool TryAfter(wxEvent& event)'), ## What about these? #('DoGetScreenPosition', 'void DoGetScreenPosition(int *x, int *y) const'), #('DoSetVirtualSize', 'void DoSetVirtualSize( int x, int y )'), #('DoGetVirtualSize', 'wxSize DoGetVirtualSize() const'), ] def _processItems(klass, prot, virtuals): txt = '' for name, decl in virtuals: m = klass.findItem(name) if m: m.ignore(False) m.isVirtual = True else: txt += 'virtual %s;\n' % decl if txt: txt = prot + txt return txt txt = _processItems(klass, 'public:\n', publicWindowVirtuals) klass.addItem(extractors.WigCode(txt)) txt = _processItems(klass, 'protected:\n', protectedWindowVirtuals) klass.addItem(extractors.WigCode(txt)) klass.addPublic() def addSipConvertToSubClassCode(klass): """ Teach SIP how to convert to specific subclass types """ klass.addItem(extractors.WigCode("""\ %ConvertToSubClassCode const wxClassInfo* info = sipCpp->GetClassInfo(); wxString name = info->GetClassName(); bool exists = sipFindType(name.c_str()) != NULL; while (info && !exists) { info = info->GetBaseClass1(); name = info->GetClassName(); exists = sipFindType(name.c_str()) != NULL; } if (info) sipType = sipFindType(name.c_str()); else sipType = NULL; %End """)) def getEtgFiles(names): """ Create a list of the files from the basenames in the names list that correspond to files in the etg folder. """ return getMatchingFiles(names, 'etg/%s.py') def getNonEtgFiles(names, template='src/%s.sip'): """ Get the files other than the ETG scripts from the list of names that match the template. By default gets the SIP files in src. """ return getMatchingFiles(names, template) def getMatchingFiles(names, template): """ Create a list of files from the basenames in names that match the template and actually exist. """ files = list() for name in names: name = template % name if os.path.exists(name): files.append(name) return files def doCommonTweaks(module): """ A collection of tweaks that should probably be done to all modules. """ ignoreAssignmentOperators(module) removeWxPrefixes(module) addAutoProperties(module) def changeTypeNames(module, oldName, newName, skipTypedef=False): """ Changes the matching type names for functions and parameters to a new name, and optionally adds typedefs for the new name as well. """ if not skipTypedef: module.addHeaderCode("typedef {old} {new};".format(old=oldName, new=newName)) module.addItem(extractors.TypedefDef(type=oldName, name=newName)) for item in module.allItems(): if isinstance(item, (extractors.FunctionDef, extractors.ParamDef)) and \ hasattr(item, 'type') and oldName in item.type: item.type = item.type.replace(oldName, newName) def copyClassDef(klass, newName): """ Make a copy of a class object and give it a new name. """ oldName = klass.name klass = copy.deepcopy(klass) assert isinstance(klass, extractors.ClassDef) klass.name = newName for ctor in klass.find(oldName).all(): ctor.name = newName if klass.findItem('~'+oldName): klass.find('~'+oldName).name = '~'+newName return klass #--------------------------------------------------------------------------- def getWrapperGenerator(): """ A simple factory function to create a wrapper generator class of the desired type. """ if '--swig' in sys.argv: from etgtools import swig_generator gClass = swig_generator.SwigWrapperGenerator elif '--sip' in sys.argv: from etgtools import sip_generator gClass = sip_generator.SipWrapperGenerator else: # The default is sip from etgtools import sip_generator gClass = sip_generator.SipWrapperGenerator return gClass() def getDocsGenerator(): if '--nodoc' in sys.argv: from etgtools import generators return generators.StubbedDocsGenerator() elif '--sphinx' in sys.argv: from etgtools import sphinx_generator return sphinx_generator.SphinxGenerator() else: # the current default is sphinx from etgtools import sphinx_generator return sphinx_generator.SphinxGenerator() def runGenerators(module): checkForUnitTestModule(module) generators = list() # Create the code generator selected from command line args generators.append(getWrapperGenerator()) # Toss in the PI generator too from etgtools import pi_generator generators.append(pi_generator.PiWrapperGenerator()) # Now the item map generator from etgtools import map_generator generators.append((map_generator.ItemMapGenerator())) # And finally add the documentation generator generators.append(getDocsGenerator()) # run the generators for g in generators: g.generate(module) def checkForUnitTestModule(module): pathname = 'unittests/test_%s.py' % module.name if os.path.exists(pathname) or not module.check4unittest: return print('WARNING: Unittest module (%s) not found!' % pathname) def addEnableSystemTheme(klass, klassName): m = extractors.MethodDef(name='EnableSystemTheme', type='void', items=[extractors.ParamDef(type='bool', name='enable', default='true')]) m.briefDoc = "Can be used to disable the system theme of controls using it by default." m.detailedDoc = [textwrap.dedent("""\ On Windows there an alternative theme available for the list and list-like controls since Windows Vista. This theme is used by Windows Explorer list and tree view and so is arguably more familiar to the users than the standard appearance of these controls. This class automatically uses the new theme, but if that is not desired then this method can be used to turn it off. Please note that this method should be called before the widget is actually created, using the 2-phase create pattern. Something like this:: # This creates the object, but not the window widget = {}() # Disable the system theme widget.EnableSystemTheme(False) # Now create the window widget.Create(parent, wx.ID_ANY) This method has no effect on other platorms """.format(klassName))] klass.addItem(m) #--------------------------------------------------------------------------- def addGetIMMethodTemplate(module, klass, fields): """ Add a bit of code to the module, and add a GetIM method to the klass which returns an immutable representation self. """ name = klass.pyName or klass.name if name.startswith('wx'): name = name[2:] module.addPyCode("""\ from collections import namedtuple _im_{name} = namedtuple('_im_{name}', {fields}) del namedtuple """.format(name=name, fields=str(fields))) klass.addPyMethod('GetIM', '(self)', doc="""\ Returns an immutable representation of the ``wx.{name}`` object, based on ``namedtuple``. This new object is hashable and can be used as a dictionary key, be added to sets, etc. It can be converted back into a real ``wx.{name}`` with a simple statement like this: ``obj = wx.{name}(imObj)``. """.format(name=name), body="return _im_{name}(*self.Get())".format(name=name) ) #--------------------------------------------------------------------------- def convertTwoIntegersTemplate(CLASS): # Note: The GIL is already acquired where this code is used. return AutoConversionInfo( ('_TwoInts', ), """\ // is it just a typecheck? if (!sipIsErr) {{ // is it already an instance of {CLASS}? if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS)) return 1; if (wxPyNumberSequenceCheck(sipPy, 2)) {{ return 1; }} return 0; }} // otherwise do the conversion if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS)) {{ // Just fetch the existing instance *sipCppPtr = reinterpret_cast<{CLASS}*>(sipConvertToType( sipPy, sipType_{CLASS}, sipTransferObj, SIP_NO_CONVERTORS, 0, sipIsErr)); return 0; // not a new instance }} // or create a new instance PyObject* o1 = PySequence_ITEM(sipPy, 0); PyObject* o2 = PySequence_ITEM(sipPy, 1); *sipCppPtr = new {CLASS}(wxPyInt_AsLong(o1), wxPyInt_AsLong(o2)); Py_DECREF(o1); Py_DECREF(o2); return SIP_TEMPORARY; """.format(**locals())) def convertFourIntegersTemplate(CLASS): # Note: The GIL is already acquired where this code is used. return AutoConversionInfo( ('_FourInts', ), """\ // is it just a typecheck? if (!sipIsErr) {{ // is it already an instance of {CLASS}? if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS)) return 1; if (wxPyNumberSequenceCheck(sipPy, 4)) {{ return 1; }} return 0; }} // otherwise do the conversion if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS)) {{ // Just fetch the existing instance *sipCppPtr = reinterpret_cast<{CLASS}*>(sipConvertToType( sipPy, sipType_{CLASS}, sipTransferObj, SIP_NO_CONVERTORS, 0, sipIsErr)); return 0; // not a new instance }} // or create a new instance PyObject* o1 = PySequence_ITEM(sipPy, 0); PyObject* o2 = PySequence_ITEM(sipPy, 1); PyObject* o3 = PySequence_ITEM(sipPy, 2); PyObject* o4 = PySequence_ITEM(sipPy, 3); *sipCppPtr = new {CLASS}(wxPyInt_AsLong(o1), wxPyInt_AsLong(o2), wxPyInt_AsLong(o3), wxPyInt_AsLong(o4)); Py_DECREF(o1); Py_DECREF(o2); Py_DECREF(o3); Py_DECREF(o4); return SIP_TEMPORARY; """.format(**locals())) def convertTwoDoublesTemplate(CLASS): # Note: The GIL is already acquired where this code is used. return AutoConversionInfo( ('_TwoFloats', ), """\ // is it just a typecheck? if (!sipIsErr) {{ // is it already an instance of {CLASS}? if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS)) return 1; if (wxPyNumberSequenceCheck(sipPy, 2)) {{ return 1; }} return 0; }} // otherwise do the conversion if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS)) {{ // Just fetch the existing instance *sipCppPtr = reinterpret_cast<{CLASS}*>(sipConvertToType( sipPy, sipType_{CLASS}, sipTransferObj, SIP_NO_CONVERTORS, 0, sipIsErr)); return 0; // not a new instance }} // or create a new instance PyObject* o1 = PySequence_ITEM(sipPy, 0); PyObject* o2 = PySequence_ITEM(sipPy, 1); *sipCppPtr = new {CLASS}(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2)); Py_DECREF(o1); Py_DECREF(o2); return SIP_TEMPORARY; """.format(**locals())) def convertFourDoublesTemplate(CLASS): # Note: The GIL is already acquired where this code is used. return AutoConversionInfo( ('_FourFloats', ), """\ // is it just a typecheck? if (!sipIsErr) {{ // is it already an instance of {CLASS}? if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS)) return 1; if (wxPyNumberSequenceCheck(sipPy, 4)) {{ return 1; }} return 0; }} // otherwise do the conversion if (sipCanConvertToType(sipPy, sipType_{CLASS}, SIP_NO_CONVERTORS)) {{ // Just fetch the existing instance *sipCppPtr = reinterpret_cast<{CLASS}*>(sipConvertToType( sipPy, sipType_{CLASS}, sipTransferObj, SIP_NO_CONVERTORS, 0, sipIsErr)); return 0; // not a new instance }} // or create a new instance PyObject* o1 = PySequence_ITEM(sipPy, 0); PyObject* o2 = PySequence_ITEM(sipPy, 1); PyObject* o3 = PySequence_ITEM(sipPy, 2); PyObject* o4 = PySequence_ITEM(sipPy, 3); *sipCppPtr = new {CLASS}(PyFloat_AsDouble(o1), PyFloat_AsDouble(o2), PyFloat_AsDouble(o3), PyFloat_AsDouble(o4)); Py_DECREF(o1); Py_DECREF(o2); Py_DECREF(o3); Py_DECREF(o4); return SIP_TEMPORARY; """.format(**locals())) #--------------------------------------------------------------------------- # Templates for creating wrappers for type-specific wxList and wxArray classes def wxListWrapperTemplate(ListClass, ItemClass, module, RealItemClass=None, includeConvertToType=False, fakeListClassName=None, header_extra=''): if RealItemClass is None: RealItemClass = ItemClass if fakeListClassName: TypeDef = "typedef %s %s;" % (ListClass, fakeListClassName) ListClass = fakeListClassName else: TypeDef = "" moduleName = module.module ListClass_pyName = removeWxPrefix(ListClass) # *** TODO: This can probably be done in a way that is not SIP-specfic. # Try creating extractor objects from scratch and attach cppMethods to # them as needed, etc.. klassCode = '''\ class {ListClass}_iterator /Abstract/ {{ // the C++ implementation of this class %TypeHeaderCode {header_extra} {TypeDef} class {ListClass}_iterator {{ public: {ListClass}_iterator({ListClass}::compatibility_iterator start) : m_node(start) {{}} {ItemClass}* __next__() {{ {RealItemClass}* obj = NULL; if (m_node) {{ obj = ({RealItemClass}*) m_node->GetData(); m_node = m_node->GetNext(); }} else {{ PyErr_SetString(PyExc_StopIteration, ""); }} return ({ItemClass}*)obj; }} private: {ListClass}::compatibility_iterator m_node; }}; %End public: {ItemClass}* __next__(); %MethodCode sipRes = sipCpp->__next__(); if (PyErr_Occurred()) return NULL; %End PyObject* __iter__(); %MethodCode return PyObject_SelfIter(sipSelf); %End }}; class {ListClass} {{ %TypeHeaderCode {header_extra} {TypeDef} %End public: Py_ssize_t __len__(); %MethodCode sipRes = sipCpp->size(); %End {ItemClass}* __getitem__(long index); %MethodCode if (0 > index) index += sipCpp->size(); if (index < sipCpp->size() && (0 <= index)) {{ {ListClass}::compatibility_iterator node = sipCpp->Item(index); if (node) sipRes = ({ItemClass}*)node->GetData(); }} else {{ wxPyErr_SetString(PyExc_IndexError, "sequence index out of range"); sipError = sipErrorFail; }} %End int __contains__(const {ItemClass}* obj); %MethodCode {ListClass}::compatibility_iterator node; node = sipCpp->Find(({RealItemClass}*)obj); sipRes = node != NULL; %End {ListClass}_iterator* __iter__() /Factory/; %MethodCode sipRes = new {ListClass}_iterator(sipCpp->GetFirst()); %End // TODO: add support for index(value, [start, [stop]]) int index({ItemClass}* obj); %MethodCode int idx = sipCpp->IndexOf(({RealItemClass}*)obj); if (idx == wxNOT_FOUND) {{ sipError = sipErrorFail; wxPyErr_SetString(PyExc_ValueError, "sequence.index(x): x not in sequence"); }} sipRes = idx; %End @ConvertToTypeCode@ }}; %Extract(id=pycode{moduleName}) def _{ListClass_pyName}___repr__(self): return "{ListClass_pyName}: " + repr(list(self)) {ListClass_pyName}.__repr__ = _{ListClass_pyName}___repr__ del _{ListClass_pyName}___repr__ %End ''' convertToTypeCode = '''\ %ConvertToTypeCode // Code to test a PyObject for compatibility if (!sipIsErr) {{ int success = TRUE; // is it already a {ListClass}? if (sipCanConvertToType(sipPy, sipType_{ListClass}, SIP_NO_CONVERTORS)) return success; // otherwise ensure that it is a sequence if (! PySequence_Check(sipPy)) success = FALSE; // ensure it is not a string or unicode object (they are sequences too) else if (PyBytes_Check(sipPy) || PyUnicode_Check(sipPy)) success = FALSE; // ensure each item can be converted to {ItemClass} else {{ Py_ssize_t i, len = PySequence_Length(sipPy); for (i=0; i( sipConvertToType(sipPy, sipType_{ListClass}, NULL, SIP_NO_CONVERTORS, 0, sipIsErr)); return 0; }} // Create a new {ListClass} and convert compatible PyObjects from the sequence {ListClass} *list = new {ListClass}; list->DeleteContents(true); // tell the list to take ownership of the items Py_ssize_t i, len = PySequence_Length(sipPy); for (i=0; i( sipConvertToType(pyItem, sipType_{ItemClass}, NULL, 0, &state, sipIsErr)); if (!state) // a temporary was not created for us, make one now cItem = new {ItemClass}(*cItem); list->Append(cItem); Py_DECREF(pyItem); }} *sipCppPtr = list; return SIP_TEMPORARY; %End ''' if includeConvertToType: klassCode = klassCode.replace('@ConvertToTypeCode@', convertToTypeCode) else: klassCode = klassCode.replace('@ConvertToTypeCode@', '') return extractors.WigCode(klassCode.format(**locals())) def wxArrayWrapperTemplate(ArrayClass, ItemClass, module, itemIsPtr=False, getItemCopy=False): moduleName = module.module ArrayClass_pyName = removeWxPrefix(ArrayClass) itemRef = '*' if itemIsPtr else '&' itemDeref = '' if itemIsPtr else '*' addrOf = '' if itemIsPtr else '&' # *** TODO: This can probably be done in a way that is not SIP-specific. # Try creating extractor objects from scratch and attach cppMethods to # them as needed, etc.. if not getItemCopy: getitemMeth = '''\ {ItemClass}{itemRef} __getitem__(long index); %MethodCode if (0 > index) index += sipCpp->GetCount(); if ((index < sipCpp->GetCount()) && (0 <= index)) {{ sipRes = {addrOf}sipCpp->Item(index); }} else {{ wxPyErr_SetString(PyExc_IndexError, "sequence index out of range"); sipError = sipErrorFail; }} %End '''.format(**locals()) else: getitemMeth = '''\ {ItemClass}* __getitem__(long index) /Factory/; %MethodCode if (0 > index) index += sipCpp->GetCount(); if ((index < sipCpp->GetCount()) && (0 <= index)) {{ sipRes = new {ItemClass}(sipCpp->Item(index)); }} else {{ wxPyErr_SetString(PyExc_IndexError, "sequence index out of range"); sipError = sipErrorFail; }} %End '''.format(**locals()) return extractors.WigCode('''\ class {ArrayClass} {{ public: Py_ssize_t __len__(); %MethodCode sipRes = sipCpp->GetCount(); %End {getitemMeth} int __contains__({ItemClass}{itemRef} obj); %MethodCode int idx = sipCpp->Index({itemDeref}obj, false); sipRes = idx != wxNOT_FOUND; %End void append({ItemClass}{itemRef} obj); %MethodCode sipCpp->Add({itemDeref}obj); %End // TODO: add support for index(value, [start, [stop]]) int index({ItemClass}{itemRef} obj); %MethodCode int idx = sipCpp->Index({itemDeref}obj, false); if (idx == wxNOT_FOUND) {{ sipError = sipErrorFail; wxPyErr_SetString(PyExc_ValueError, "sequence.index(x): x not in sequence"); }} sipRes = idx; %End }}; %Extract(id=pycode{moduleName}) def _{ArrayClass_pyName}___repr__(self): return "{ArrayClass_pyName}: " + repr(list(self)) {ArrayClass_pyName}.__repr__ = _{ArrayClass_pyName}___repr__ del _{ArrayClass_pyName}___repr__ %End '''.format(**locals())) # Same as the above, but for use with WX_DEFINE_ARRAY_PTR def wxArrayPtrWrapperTemplate(ArrayClass, ItemClass, module): moduleName = module.module ArrayClass_pyName = removeWxPrefix(ArrayClass) # *** TODO: This can probably be done in a way that is not SIP-specfic. # Try creating extractor objects from scratch and attach cppMethods to # them as needed, etc.. return extractors.WigCode('''\ class {ArrayClass} {{ public: Py_ssize_t __len__(); %MethodCode sipRes = sipCpp->GetCount(); %End {ItemClass}* __getitem__(long index); %MethodCode if (0 > index) index += sipCpp->GetCount(); if ((index < sipCpp->GetCount()) && (0 <= index)) {{ sipRes = sipCpp->Item(index); }} else {{ wxPyErr_SetString(PyExc_IndexError, "sequence index out of range"); sipError = sipErrorFail; }} %End int __contains__({ItemClass}* obj); %MethodCode int idx = sipCpp->Index(obj, false); sipRes = idx != wxNOT_FOUND; %End void append({ItemClass}* obj); %MethodCode sipCpp->Add(obj); %End // TODO: add support for index(value, [start, [stop]]) int index({ItemClass}* obj); %MethodCode int idx = sipCpp->Index(obj, false); if (idx == wxNOT_FOUND) {{ sipError = sipErrorFail; wxPyErr_SetString(PyExc_ValueError, "sequence.index(x): x not in sequence"); }} sipRes = idx; %End }}; %Extract(id=pycode{moduleName}) def _{ArrayClass_pyName}___repr__(self): return "{ArrayClass_pyName}: " + repr(list(self)) {ArrayClass_pyName}.__repr__ = _{ArrayClass_pyName}___repr__ del _{ArrayClass_pyName}___repr__ %End '''.format(**locals())) def ObjArrayHelperTemplate(objType, sipType, errmsg): """ Generates a helper function that can convert from a Python sequence of objects (or items that can be converted to the target type) into a C array of values. Copies are made of the items so the object types should support implicit or explicit copies and the copy should be cheap. This kind of helper is useful for situations where the C/C++ API takes a simple pointer and a count, and there is no higher level container object (like a wxList or wxArray) being used. If there is an overloaded method that uses one of those types then the C array overload should just be ignored. But for those cases where the C array is the only option then this helper can be used to make the array from a sequence. """ cppCode = """\ // Convert a Python sequence of {objType} objects, or items that can be converted // to {objType} into a C array of {objType} instances. static {objType}* {objType}_array_helper(PyObject* source, size_t *count) {{ {objType}* array; Py_ssize_t idx, len; wxPyThreadBlocker blocker; // ensure that it is a sequence if (! PySequence_Check(source)) goto error0; // ensure it is not a string or unicode object (they are sequences too) else if (PyBytes_Check(source) || PyUnicode_Check(source)) goto error0; // ensure each item can be converted to {objType} else {{ len = PySequence_Length(source); for (idx=0; idx( sipConvertToType(obj, {sipType}, NULL, 0, &state, &err)); array[idx] = *item; sipReleaseType((void*)item, {sipType}, state); // delete temporary instances Py_DECREF(obj); }} return array; error0: PyErr_SetString(PyExc_TypeError, "{errmsg}"); return NULL; }} """.format(**locals()) return cppCode #--------------------------------------------------------------------------- # type helpers def guessTypeInt(v): if isinstance(v, extractors.EnumValueDef): return True if isinstance(v, extractors.DefineDef) and '"' not in v.value: return True type = v.type.replace('const', '') type = type.replace(' ', '') if type in ['int', 'long', 'byte', 'size_t', 'wxCoord', 'wxEventType']: return True if 'unsigned' in type: return True return False def guessTypeFloat(v): type = v.type.replace('const', '') type = type.replace(' ', '') if type in ['float', 'double', 'wxDouble']: return True return False def guessTypeStr(v): if hasattr(v, 'value') and '"' in v.value: return True for t in ['wxString', 'wxChar', 'char*', 'char *', 'wchar_t*', 'wchar_t *']: if t in v.type: return True return False #--------------------------------------------------------------------------- # Tweakers to generate C++ stubs for cases where a feature is optional. By # generating stubs then we can still provide the wrapper classes but simply # have them raise NotImplemented errors or whatnot. def generateStubs(cppFlag, module, excludes=[], typeValMap={}, extraHdrCode=None, extraCppCode=None): """ Generate C++ stubs for all items in the module, except those that are in the optional excludes list. """ # First add a define for the cppFlag (like wxUSE_SOME_FEATURE) so the user # code has a way to check if an optional classis available before using it # and getting an exception. assert isinstance(module, extractors.ModuleDef) if not module.findItem(cppFlag): module.addItem(extractors.DefineDef(name=cppFlag, value='0')) excludes.append(cppFlag) # Copy incoming typeValMap so it can be updated with some stock types import copy typeValMap = copy.copy(typeValMap) typeValMap.update({ 'int': '0', 'long': '0', 'unsigned int': '0', 'bool': 'false', 'double': '0.0', 'wxString': 'wxEmptyString', 'const wxString &': 'wxEmptyString', 'wxString &': 'wxEmptyString', 'wxSize': 'wxDefaultSize', 'wxPoint': 'wxDefaultPosition', 'wxFileOffset': '0', 'wxColour': 'wxNullColour', 'wxBitmap': 'wxNullBitmap', 'wxBitmap &': 'wxNullBitmap', 'wxImage': 'wxNullImage', 'wxVisualAttributes': 'wxVisualAttributes()', }) code = _StubCodeHolder(cppFlag) # Next add forward declarations of all classes in case they refer to # each other. for item in module: if isinstance(item, extractors.ClassDef): code.hdr.append('class {};'.format(item.name)) if extraHdrCode: code.hdr.append(extraHdrCode) if extraCppCode: code.cpp.append(extraCppCode) # Now write code for all the items in the module. for item in module: if item.name in excludes: continue dispatchMap = { extractors.DefineDef : _generateDefineStub, extractors.GlobalVarDef : _generateGlobalStub, extractors.EnumDef : _generateEnumStub, extractors.ClassDef : _generateClassStub, extractors.PyCodeDef : _ignore, } func = dispatchMap.get(type(item), None) if func is None: print('WARNING: Unable to generate stub for {}, type {}'.format( item.name, type(item))) else: func(code, item, typeValMap) # Add the code to the module header module.addHeaderCode(code.renderHdr()) if code.cpp: # and possibly the module's C++ file module.addCppCode(code.renderCpp()) # A simple class for holding lists of code snippets for the header and # possibly the C++ file. class _StubCodeHolder: def __init__(self, flag): self.flag = flag self.hdr = [] self.cpp = [] def renderHdr(self): return self.doRender(self.hdr) def renderCpp(self): return self.doRender(self.cpp) def doRender(self, lst): if not lst: return '' code = ('#if !{}\n'.format(self.flag) + '\n'.join(lst) + '\n#endif //!{}\n'.format(self.flag)) return code def _ignore(*args): pass def _generateDefineStub(code, define, typeValMap): code.hdr.append('#define {} {}'.format(define.name, define.value)) def _generateGlobalStub(code, glob, typeValMap): code.hdr.append('extern {} {};'.format(glob.type, glob.name)) if glob.type == 'const char*': code.cpp.append('{} {} = "";'.format(glob.type, glob.name)) else: code.cpp.append('{} {};'.format(glob.type, glob.name)) def _generateEnumStub(code, enum, typeValMap): name = '' if enum.name.startswith('@') else enum.name code.hdr.append('\nenum {} {{'.format(name)) for item in enum: code.hdr.append(' {},'.format(item.name)) code.hdr.append('};') def _generateClassStub(code, klass, typeValMap): if not klass.bases: code.hdr.append('\nclass {} {{'.format(klass.name)) else: code.hdr.append('\nclass {} : {} {{'.format(klass.name, ', '.join(['public ' + base for base in klass.bases]))) code.hdr.append('public:') for item in klass: dispatchMap = { extractors.MethodDef : _generateMethodStub, extractors.WigCode : lambda c, i, t: None, # ignore this type } func = dispatchMap.get(type(item), None) if func is None: print('WARNING: Unable to generate stub for {}.{}, type {}'.format( klass.name, item.name, type(item))) else: func(code, item, typeValMap) code.hdr.append('};') def _generateMethodStub(code, method, typeValMap): assert isinstance(method, extractors.MethodDef) if method.ignored: return decl = ' ' if method.isVirtual: decl += 'virtual ' if method.isStatic: decl += 'static ' if method.isCtor or method.isDtor: decl += '{}'.format(method.name) else: decl += '{} {}'.format(method.type, method.name) decl += method.argsString if method.isPureVirtual: decl += ';' code.hdr.append(decl) if not method.isPureVirtual: impl = ' { ' if method.isCtor or method.isStatic: impl += 'wxPyRaiseNotImplemented(); ' if not (method.isCtor or method.isDtor): if not method.type == 'void': rval = typeValMap.get(method.type, None) if rval is None and '*' in method.type: rval = 'NULL' if rval is None: print("WARNING: I don't know how to return a '{}' value.".format(method.type)) rval = '0' impl += 'return {}; '.format(rval) impl += '}\n' code.hdr.append(impl) for overload in method.overloads: _generateMethodStub(code, overload, typeValMap) #---------------------------------------------------------------------------