/usr/lib/python2.7/dist-packages/wxglade/codegen/cpp_codegen.py is in python-wxglade 0.6.8-2.2.
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The actual contents of the file can be viewed below.
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C++ code generator
How the code is generated: every time the end of an object is reached during
the parsing of the xml tree, either the function 'add_object' or the function
'add_class' is called: the latter when the object is a toplevel one, the former
when it is not. In the last case, 'add_object' calls the appropriate ``writer''
function for the specific object, found in the 'obj_builders' dict. Such
function accepts one argument, the CodeObject representing the object for
which the code has to be written, and returns 3 lists of strings, representing
the lines to add to the '__init__', '__set_properties' and '__do_layout'
methods of the parent object.
@copyright: 2002-2007 Alberto Griggio <agriggio@users.sourceforge.net>
@copyright: 2012 Carsten Grohmann <mail@carstengrohmann.de>
@license: MIT (see license.txt) - THIS PROGRAM COMES WITH NO WARRANTY
"""
import cStringIO
import os
import os.path
import re
from codegen import BaseCodeWriter, \
BaseSourceFileContent, \
BaseWidgetHandler
class SourceFileContent(BaseSourceFileContent):
"""\
Keeps info about an existing file that has to be updated, to replace only
the lines inside a wxGlade block, an to keep the rest of the file as it was
@ivar event_handlers: List of event handlers for each class
@ivar header_content: Content of the header file
@ivar source_content: Content of the source file
"""
rec_block_start = re.compile(
r'^(?P<spaces>\s*)' # leading spaces
r'//\s*' # comment sign
r'begin\s+wxGlade:\s*' # "begin wxGlade:" statement and tailing spaces
r'(?P<classname>\w*)' # class or function name
r'::' # separator between class and function / block (non-greedy)
r'(?P<block>\w+)' # function / block name
r'\s*$' # tailing spaces
)
rec_block_end = re.compile(
r'^\s*' # leading spaces
r'//\s*' # comment sign
r'end\s+wxGlade' # "end exGlade" statement
r'\s*$' # tailing spaces
)
rec_class_end = re.compile(
r'^\s*};\s*' # closing curly brackets
r'//\s*' # comment sign
r'wxGlade:\s+end\s+class' # "wxGlade: end class" statement
r'\s*$' # tailing spaces
)
"""\
Regexp to match last line of a class statement
"""
rec_class_decl = re.compile(
r'^\s*' # leading spaces
r'class\s+([a-zA-Z_]\w*)' # "class <name>" statement
r'\s*' # tailing spaces
)
"""\
Regexp to match class declarations
This isn't very accurate - doesn't match template classes, nor virtual
inheritance, but should be enough for most cases
"""
rec_decl_event_table = re.compile(
r'^\s*' # leading spaces
r'DECLARE_EVENT_TABLE\s*\(\s*\)\s*;?' # declaration of the event table
r'\s*$' # tailing spaces
)
"""\
Regexp to match declaration of event table
"""
rec_def_event_table = re.compile(
r'^\s*' # leading spaces
r'BEGIN_EVENT_TABLE\s*\(\s*(\w+)\s*,\s*(\w+)\s*\)'
r'\s*$' # tailing spaces
)
"""\
Regexp to match event table
"""
rec_event_handler = re.compile(
r'^\s*' # leading spaces
r'(?:virtual\s+)?'
r'void\s+(?P<handler>[A-Za-z_]+\w*)' # event handler name
r'\s*' # optional spaces
r'\([A-Za-z_:0-9]+\s*&\s*\w*\)\s*;'
r'\s*' # optional spaces
r'//\s*wxGlade:\s*<event_handler>' # wxGlade event handler statement
r'\s*$' # tailing spaces
)
rec_event_handlers_marker = re.compile(
r'^\s*' # leading spaces
r'//\s*wxGlade:\s*add\s+'
r'((?:\w|:)+)\s+event handlers'
r'\s*$' # tailing spaces
)
"""\
Regexp to match wxGlade comment of event handlers
"""
def __init__(self, name, code_writer):
# initialise new variables first
self.header_content = None
self.source_content = None
self.event_table_decl = {}
self.event_table_def = {}
self.header_extension = code_writer.header_extension
self.source_extension = code_writer.source_extension
# call inherited constructor
BaseSourceFileContent.__init__(self, name, code_writer)
def build_untouched_content(self):
BaseSourceFileContent.build_untouched_content(self)
self._build_untouched(self.name + self.header_extension, True)
BaseSourceFileContent.build_untouched_content(self)
self._build_untouched(self.name + self.source_extension, False)
def _build_untouched(self, filename, is_header):
prev_was_handler = False
events_tag_added = False
inside_block = False
inside_comment = False
tmp_in = self._load_file(filename)
out_lines = []
for line in tmp_in:
comment_index = line.find('/*')
if not inside_comment and comment_index != -1 \
and comment_index > line.find('//'):
inside_comment = True
if inside_comment:
end_index = line.find('*/')
if end_index > comment_index:
inside_comment = False
if not is_header:
result = None
else:
result = self.rec_class_decl.match(line)
if not inside_comment and not inside_block and result:
## print ">> class %r" % result.group(1)
if not self.class_name:
# this is the first class declared in the file: insert the
# new ones before this
out_lines.append('<%swxGlade insert new_classes>' %
self.nonce)
self.new_classes_inserted = True
self.class_name = result.group(1)
self.class_name = self.format_classname(self.class_name)
self.classes[self.class_name] = 1 # add the found class to the list
# of classes of this module
out_lines.append(line)
elif not inside_block:
result = self.rec_block_start.match(line)
if not inside_comment and result:
## print ">> block %r %r %r" % (
## result.group('spaces'), result.group('classname'), result.group('block'))
# replace the lines inside a wxGlade block with a tag that
# will be used later by add_class
spaces = result.group('spaces')
which_class = result.group('classname')
which_block = result.group('block')
if not which_class:
which_class = self.class_name
else:
which_class = self.format_classname(which_class)
self.spaces[which_class] = spaces
inside_block = True
out_lines.append('<%swxGlade replace %s %s>' % (
self.nonce,
result.group('classname'),
result.group('block')
))
else:
dont_append = False
# ALB 2004-12-08 event handling support...
if is_header and not inside_comment:
result = self.rec_event_handler.match(line)
if result:
prev_was_handler = True
which_handler = result.group('handler')
which_class = self.class_name
self.event_handlers.setdefault(
which_class, {})[which_handler] = 1
else:
if prev_was_handler:
# add extra event handlers here...
out_lines.append('<%swxGlade event_handlers %s>'
% (self.nonce, self.class_name)
)
prev_was_handler = False
events_tag_added = True
elif not events_tag_added and \
self.is_end_of_class(line):
out_lines.append(
'<%swxGlade event_handlers %s>' % \
(self.nonce, self.class_name)
)
# now try to see if we already have a
# DECLARE_EVENT_TABLE
result = self.rec_decl_event_table.match(line)
if result:
self.event_table_decl[self.class_name] = True
elif not inside_comment:
result = self.rec_event_handlers_marker.match(line)
if result:
out_lines.append('<%swxGlade add %s event '
'handlers>' % \
(self.nonce, result.group(1)))
dont_append = True
result = self.rec_def_event_table.match(line)
if result:
which_class = result.group(1)
self.event_table_def[which_class] = True
# ----------------------------------------
if not dont_append:
out_lines.append(line)
else:
# ignore all the lines inside a wxGlade block
if self.rec_block_end.match(line):
inside_block = False
if is_header and not self.new_classes_inserted:
# if we are here, the previous ``version'' of the file did not
# contain any class, so we must add the new_classes tag at the
# end of the file
out_lines.append('<%swxGlade insert new_classes>' % self.nonce)
# set the ``persistent'' content of the file
if is_header:
self.header_content = "".join(out_lines)
else:
self.source_content = "".join(out_lines)
def is_end_of_class(self, line):
"""\
Return True if the line is the last line of a class
Not really, but for wxglade-generated code it should work...
"""
return self.rec_class_end.match(line)
# end of class SourceFileContent
class WidgetHandler(BaseWidgetHandler):
"""\
Interface the various code generators for the widgets must implement
"""
constructor = []
"""\
``signature'' of the widget's constructor
"""
extra_headers = []
"""\
If not None, list of extra header file, in the form
<header.h> or "header.h"
"""
def __init__(self):
BaseWidgetHandler.__init__(self)
self.constructor = []
self.extra_headers = []
def get_ids_code(self, obj):
"""\
Handler for the code of the ids enum of toplevel objects.
Returns a list of strings containing the code to generate.
Usually the default implementation is ok (i.e. there are no
extra lines to add)
"""
return []
# end of class WidgetHandler
class CPPCodeWriter(BaseCodeWriter):
"""\
Code writer class for writing C++ code out of the designed GUI elements
@ivar source_extension: Extension of the source file
@type source_extension: String
@ivar header_extension: Extension of the header file
@type header_extension: String
@ivar last_generated_id: Last generated Id number (wxNewId() is not
used yet)
@type last_generated_id: Integer
@cvar tmpl_init_gettext: Template for inclusion of i18n headers and
defining APP_CATALOG constant
@type tmpl_init_gettext: None or string
@see: L{BaseCodeWriter}
"""
default_extensions = ['cpp', 'cc', 'C', 'cxx', 'c++',
'h', 'hh', 'hpp', 'H', 'hxx', ]
language = "C++"
code_statements = {
'backgroundcolour': "%(objname)sSetBackgroundColour(%(value)s);\n",
'disabled': "%(objname)sEnable(0);\n",
'extraproperties': "%(objname)sSet%(propname)s(%(value)s);\n",
'focused': "%(objname)sSetFocus();\n",
'foregroundcolour': "%(objname)sSetForegroundColour(%(value)s);\n",
'hidden': "%(objname)sHide();\n",
'setfont': "%(objname)sSetFont(wxFont(%(size)s, %(family)s, "
"%(style)s, %(weight)s, %(underlined)s, wxT(%(face)s)));\n",
'tooltip': "%(objname)sSetToolTip(%(tooltip)s);\n",
'wxcolour': "wxColour(%(value)s)",
'wxsystemcolour': "wxSystemSettings::GetColour(%(value)s)",
}
class_separator = '::'
comment_sign = '//'
global_property_writers = {
'font': BaseCodeWriter.FontPropertyHandler,
'events': BaseCodeWriter.EventsPropertyHandler,
'extraproperties': BaseCodeWriter.ExtraPropertiesPropertyHandler,
}
language_note = \
'// Example for compiling a single file project under Linux using g++:\n' \
'// g++ MyApp.cpp $(wx-config --libs) $(wx-config --cxxflags) -o MyApp\n' \
'//\n' \
'// Example for compiling a multi file project under Linux using g++:\n' \
'// g++ main.cpp $(wx-config --libs) $(wx-config --cxxflags) -o MyApp Dialog1.cpp Frame1.cpp\n' \
'//\n'
last_generated_id = 1000
output_name = None
"""\
If not None, name (without extension) of the file to write into
@type: String
"""
output_header = None
"""\
Temporary storage of header file for writing into
@type: StringIO
"""
output_file = None
"""\
Temporary storage of source file for writing into
@type: StringIO
"""
shebang = '// -*- C++ -*-\n//\n'
tmpl_cfunc_end = '}\n\n'
tmpl_name_do_layout = 'do_layout'
tmpl_name_set_properties = 'set_properties'
tmpl_sizeritem = '%s->Add(%s, %s, %s, %s);\n'
tmpl_ctor_call_layout = '\n' \
'%(tab)sset_properties();\n' \
'%(tab)sdo_layout();\n'
tmpl_func_do_layout = '\n' \
'void %(klass)s::do_layout()\n{\n' \
'%(content)s' \
'}\n\n'
tmpl_func_set_properties = '\n' \
'void %(klass)s::set_properties()\n{\n' \
'%(content)s' \
'}\n\n'
tmpl_appfile = """\
%(overwrite)s\
%(header_lines)s\
#include "%(top_win_class)s.h"
"""
tmpl_init_gettext = """\
#include "wx/intl.h"
#ifndef APP_CATALOG
#define APP_CATALOG "%(name)s" // replace with the appropriate catalog name
#endif
"""
tmpl_detailed = """\
class %(klass)s: public wxApp {
public:
%(tab)sbool OnInit();
};
IMPLEMENT_APP(%(klass)s)
bool %(klass)s::OnInit()
{
%(tab)swxInitAllImageHandlers();
%(tab)s%(top_win_class)s* %(top_win)s = new %(top_win_class)s(NULL, wxID_ANY, wxEmptyString);
%(tab)sSetTopWindow(%(top_win)s);
%(tab)s%(top_win)s->Show();
%(tab)sreturn true;
}"""
tmpl_gettext_detailed = """\
class %(klass)s: public wxApp {
public:
%(tab)sbool OnInit();
protected:
%(tab)swxLocale m_locale; // locale we'll be using
};
IMPLEMENT_APP(%(klass)s)
bool %(klass)s::OnInit()
{
%(tab)sm_locale.Init();
#ifdef APP_LOCALE_DIR
%(tab)sm_locale.AddCatalogLookupPathPrefix(wxT(APP_LOCALE_DIR));
#endif
%(tab)sm_locale.AddCatalog(wxT(APP_CATALOG));
%(tab)swxInitAllImageHandlers();
%(tab)s%(top_win_class)s* %(top_win)s = new %(top_win_class)s(NULL, wxID_ANY, wxEmptyString);
%(tab)sSetTopWindow(%(top_win)s);
%(tab)s%(top_win)s->Show();
%(tab)sreturn true;
}"""
tmpl_simple = """\
class MyApp: public wxApp {
public:
%(tab)sbool OnInit();
};
IMPLEMENT_APP(MyApp)
bool MyApp::OnInit()
{
%(tab)swxInitAllImageHandlers();
%(tab)s%(top_win_class)s* %(top_win)s = new %(top_win_class)s(NULL, wxID_ANY, wxEmptyString);
%(tab)sSetTopWindow(%(top_win)s);
%(tab)s%(top_win)s->Show();
%(tab)sreturn true;
}"""
tmpl_gettext_simple = """\
class MyApp: public wxApp {
public:
%(tab)sbool OnInit();
protected:
%(tab)swxLocale m_locale; // locale we'll be using
};
IMPLEMENT_APP(MyApp)
bool MyApp::OnInit()
{
%(tab)sm_locale.Init();
#ifdef APP_LOCALE_DIR
%(tab)sm_locale.AddCatalogLookupPathPrefix(wxT(APP_LOCALE_DIR));
#endif
%(tab)sm_locale.AddCatalog(wxT(APP_CATALOG));
%(tab)swxInitAllImageHandlers();
%(tab)s%(top_win_class)s* %(top_win)s = new %(top_win_class)s(NULL, wxID_ANY, wxEmptyString);
%(tab)sSetTopWindow(%(top_win)s);
%(tab)s%(top_win)s->Show();
%(tab)sreturn true;
}"""
class ClassLines(BaseCodeWriter.ClassLines):
"""\
Stores the lines of C++ code for a custom class
@ivar ids: Ids declared in the source (to use for Event
handling): these are grouped together into a
public enum in the custom class
@ivar sub_objs: List of 2-tuples (type, name) of the sub-objects
which are attributes of the toplevel object
@ivar extra_code_h: Extra header code to output
@ivar extra_code_cpp: Extra source code to output
"""
def __init__(self):
BaseCodeWriter.ClassLines.__init__(self)
self.ids = []
self.sub_objs = []
self.extra_code_h = []
self.extra_code_cpp = []
self.dependencies = [] # List not dictionary
# end of class ClassLines
def initialize(self, app_attrs):
"""\
Writer initialization function.
@keyword path: Output path for the generated code (a file if multi_files is
False, a dir otherwise)
@keyword option: If True, generate a separate file for each custom class
"""
# initialise parent class
BaseCodeWriter.initialize(self, app_attrs)
self.app_filename = 'main.cpp'
out_path = app_attrs['path']
self.last_generated_id = 1000
# Extensions based on Project options when set
self.source_extension = app_attrs.get('source_extension', '.cpp')
self.header_extension = app_attrs.get('header_extension', '.h')
self.header_lines = [
'#include <wx/wx.h>\n',
'#include <wx/image.h>\n',
]
# include i18n / gettext
if self._use_gettext:
self.header_lines.append(
self.tmpl_init_gettext % {'name': self.app_name}
)
# extra lines to generate (see the 'extracode' property of top-level
# widgets)
self._current_extra_code_h = []
self._current_extra_code_cpp = []
if self.multiple_files:
self.previous_source = None
if not os.path.isdir(out_path):
raise IOError("'path' must be a directory when generating"\
" multiple output files")
self.out_dir = out_path
else:
name = os.path.splitext(out_path)[0]
self.output_name = name
if not self._overwrite and self._file_exists(name + self.header_extension):
# the file exists, we must keep all the lines not inside a wxGlade
# block. NOTE: this may cause troubles if out_path is not a valid
# source file, so be careful!
self.previous_source = SourceFileContent(name, self)
else:
# if the file doesn't exist, create it and write the ``intro''
self.previous_source = None
self.output_header = cStringIO.StringIO()
self.output_file = cStringIO.StringIO()
# isolation directives
oh = os.path.basename(name + self.header_extension).upper().replace(
'.', '_')
self.output_header.write('#ifndef %s\n#define %s\n' % (oh, oh))
self.output_header.write('\n')
for line in self.header_lines:
self.output_header.write(line)
self.output_header.write('\n')
# now, write the tags to store dependencies and extra code
self.output_header.write('<%swxGlade replace dependencies>' % self.nonce)
self.output_header.write('\n<%swxGlade replace extracode>' % self.nonce)
self.output_header.write('\n')
self.output_file.write('#include "%s%s"\n\n' % \
(os.path.basename(name), self.header_extension))
self.output_file.write('<%swxGlade replace extracode>\n\n' % self.nonce)
def finalize(self):
if self.previous_source:
# insert all the new custom classes inside the old file
tag = '<%swxGlade insert new_classes>' % self.nonce
if self.previous_source.new_classes:
code = "".join([c[0] for c in self.previous_source.new_classes])
else:
code = ""
header_content = self.previous_source.header_content.replace(tag, code)
extra_source = "".join([c[1] for c in self.previous_source.new_classes])
source_content = self.previous_source.source_content
# extra code (see the 'extracode' property of top-level widgets)
tag = '<%swxGlade replace extracode>' % self.nonce
code = self._tagcontent(
'::extracode',
self._current_extra_code_h
)
header_content = header_content.replace(tag, code)
code = self._tagcontent(
'::extracode',
self._current_extra_code_cpp
)
source_content = source_content.replace(tag, code)
# --------------------------------------------------------------
# now remove all the remaining <123415wxGlade ...> tags from the
# source: this may happen if we're not generating multiple files,
# and one of the container class names is changed
tags = re.findall(
'(<%swxGlade replace ([a-zA-Z_]*\w*) (\w+)>)' % self.nonce,
header_content
)
for tag in tags:
if tag[2] == 'dependencies':
#print 'writing dependencies'
deps = []
for code in self.classes.itervalues():
deps.extend(code.dependencies)
lines = self._format_dependencies(deps)
elif tag[2] == 'methods':
lines = '%svoid set_properties();\n%svoid do_layout();\n' \
% (self.tabs(1), self.tabs(1))
else:
lines = '// content of this block (%s) not found: ' \
'did you rename this class?\n' % tag[2]
header_content = header_content.replace(tag[0], lines)
# remove all the remaining <123415wxGlade ...> tags in source file
source_content = self._content_notfound(
source_content,
)
# ALB 2004-12-08
tags = re.findall('<%swxGlade event_handlers \w+>' % self.nonce,
header_content)
for tag in tags:
header_content = header_content.replace(tag, "")
tags = re.findall('<%swxGlade add \w+ event_handlers>' % self.nonce,
source_content)
for tag in tags:
source_content = source_content.replace(tag, "")
# write the new file contents to disk
self.save_file(
self.previous_source.name + self.header_extension,
header_content,
content_only=True
)
if extra_source:
extra_source = '\n\n' + extra_source
self.save_file(
self.previous_source.name + self.source_extension,
source_content + extra_source,
content_only=True
)
elif not self.multiple_files:
oh = os.path.basename(self.output_name).upper() + '_H'
self.output_header.write('\n#endif // %s\n' % oh)
# write the list of include files
header_content = self.output_header.getvalue()
source_content = self.output_file.getvalue()
tags = re.findall('<%swxGlade replace dependencies>' %
self.nonce, header_content)
deps = []
for code in self.classes.itervalues():
deps.extend(code.dependencies)
code = self._format_dependencies(deps)
header_content = header_content.replace(
'<%swxGlade replace dependencies>' % self.nonce, code)
# extra code (see the 'extracode' property of top-level widgets)
tag = '<%swxGlade replace extracode>' % self.nonce
code = self._tagcontent('::extracode', self._current_extra_code_h)
header_content = header_content.replace(tag, code)
code = self._tagcontent('::extracode', self._current_extra_code_cpp)
source_content = source_content.replace(tag, code)
# --------------------------------------------------------------
self.save_file(
self.output_name + self.header_extension,
header_content,
self._app_added
)
self.save_file(
self.output_name + self.source_extension,
source_content,
self._app_added
)
def add_class(self, code_obj):
if self.classes.has_key(code_obj.klass) and \
self.classes[code_obj.klass].done:
return # the code has already been generated
if self.multiple_files:
# let's see if the file to generate exists, and in this case
# create a SourceFileContent instance
filename = os.path.join(self.out_dir,
code_obj.klass.replace('::', '_') +
self.header_extension)
if self._overwrite or not self._file_exists(filename):
prev_src = None
else:
prev_src = SourceFileContent(
os.path.join(self.out_dir, code_obj.klass),
self,
)
else:
# in this case, previous_source is the SourceFileContent instance
# that keeps info about the single file to generate
prev_src = self.previous_source
try:
builder = self.obj_builders[code_obj.base]
mycn = getattr(builder, 'cn', self.cn)
mycn_f = getattr(builder, 'cn_f', self.cn_f)
except KeyError:
print code_obj
raise # this is an error, let the exception be raised
if prev_src and prev_src.classes.has_key(code_obj.klass):
is_new = False
else:
# this class wasn't in the previous version of the source (if any)
is_new = True
header_buffer = []
source_buffer = []
hwrite = header_buffer.append
swrite = source_buffer.append
if not self.classes.has_key(code_obj.klass):
# if the class body was empty, create an empty ClassLines
self.classes[code_obj.klass] = self.ClassLines()
# collect all event handlers
event_handlers = self.classes[code_obj.klass].event_handlers
if hasattr(builder, 'get_events'):
for id, event, handler in builder.get_events(code_obj):
event_handlers.append((id, mycn(event), handler))
# try to see if there's some extra code to add to this class
extra_code = getattr(builder, 'extracode',
code_obj.properties.get('extracode', ""))
if extra_code:
extra_code = re.sub(r'\\n', '\n', extra_code)
extra_code = re.split(re.compile(r'^###\s*$', re.M), extra_code, 1)
self.classes[code_obj.klass].extra_code_h.append(extra_code[0])
if len(extra_code) > 1:
self.classes[code_obj.klass].extra_code_cpp.append(extra_code[1])
if not is_new:
self.warning(
'%s has extra code, but you are not overwriting '
'existing sources: please check that the resulting '
'code is correct!' % code_obj.name
)
if not self.multiple_files and extra_code:
if self.classes[code_obj.klass].extra_code_h:
self._current_extra_code_h.append("".join(
self.classes[code_obj.klass].extra_code_h[::-1]))
if self.classes[code_obj.klass].extra_code_cpp:
self._current_extra_code_cpp.append("".join(
self.classes[code_obj.klass].extra_code_cpp[::-1]))
default_sign = [('wxWindow*', 'parent'), ('int', 'id')]
sign = getattr(builder, 'constructor', default_sign)
defaults = []
for t in sign:
if len(t) == 3:
defaults.append(t[2])
else:
defaults.append(None)
tmp_sign = [t[0] + ' ' + t[1] for t in sign]
sign_decl2 = ', '.join(tmp_sign)
for i in range(len(tmp_sign)):
if defaults[i]:
tmp_sign[i] += '=%s' % defaults[i]
sign_decl1 = ', '.join(tmp_sign)
sign_inst = ', '.join([t[1] for t in sign])
# custom base classes support
custom_base = getattr(code_obj, 'custom_base',
code_obj.properties.get('custom_base', None))
if custom_base and not custom_base.strip():
custom_base = None
# generate constructor code
if is_new:
pass
elif custom_base:
# custom base classes set, but "overwrite existing sources" not
# set. Issue a warning about this
self.warning(
'%s has custom base classes, but you are not overwriting '
'existing sources: please check that the resulting code is '
'correct!' % code_obj.name
)
if is_new:
# header file
base = code_obj.base
if custom_base:
base = ", public ".join([b.strip() for b in custom_base.split(',')])
hwrite('\nclass %s: public %s {\n' % (code_obj.klass, base))
hwrite('public:\n')
# the first thing to add it the enum of the various ids
hwrite(self.tabs(1) + '// begin wxGlade: %s::ids\n' % code_obj.klass)
ids = self.classes[code_obj.klass].ids
# let's try to see if there are extra ids to add to the enum
if hasattr(builder, 'get_ids_code'):
ids.extend(builder.get_ids_code(code_obj))
if ids:
hwrite(self.tabs(1) + 'enum {\n')
ids = (',\n' + self.tabs(2)).join(ids)
hwrite(self.tabs(2) + ids)
hwrite('\n' + self.tabs(1) + '};\n')
hwrite(self.tabs(1) + '// end wxGlade\n\n')
# constructor prototype
hwrite(self.tabs(1) + '%s(%s);\n' % (code_obj.klass, sign_decl1))
hwrite('\nprivate:\n')
# set_properties and do_layout prototypes
hwrite(self.tabs(1) + '// begin wxGlade: %s::methods\n' % code_obj.klass)
hwrite(self.tabs(1) + 'void set_properties();\n')
hwrite(self.tabs(1) + 'void do_layout();\n')
hwrite(self.tabs(1) + '// end wxGlade\n')
# declarations of the attributes
hwrite('\n')
hwrite('protected:\n')
hwrite(self.tabs(1) + '// begin wxGlade: %s::attributes\n' % code_obj.klass)
for o_type, o_name in self.classes[code_obj.klass].sub_objs:
hwrite(self.tabs(1) + '%s* %s;\n' % (o_type, o_name))
hwrite(self.tabs(1) + '// end wxGlade\n')
# ALB 2004-12-08 event handling
if event_handlers:
t = self.tabs(1)
hwrite('\n' + t + 'DECLARE_EVENT_TABLE();\n')
hwrite('\npublic:\n')
already_there = {}
for tpl in event_handlers:
if len(tpl) == 4:
win_id, event, handler, evt_type = tpl
else:
win_id, event, handler = tpl
evt_type = 'wxCommandEvent'
if handler not in already_there:
# Sebastien JEFFROY & Steve MULLER contribution
# Adding virtual attribute permits to derivate from the
# class generated by wxGlade
hwrite(t + 'virtual void %s(%s &event); '
'// wxGlade: <event_handler>\n' %
(handler, evt_type))
already_there[handler] = 1
hwrite('}; // wxGlade: end class\n\n')
elif prev_src:
hwrite(self.tabs(1) + '// begin wxGlade: %s::ids\n' % code_obj.klass)
ids = self.classes[code_obj.klass].ids
# let's try to see if there are extra ids to add to the enum
if hasattr(builder, 'get_ids_code'):
ids.extend(builder.get_ids_code(code_obj))
if ids:
hwrite(self.tabs(1) + 'enum {\n')
ids = (',\n' + self.tabs(2)).join(ids)
hwrite(self.tabs(2) + ids)
hwrite('\n' + self.tabs(1) + '};\n')
hwrite(self.tabs(1) + '// end wxGlade\n')
tag = '<%swxGlade replace %s ids>' % (self.nonce, code_obj.klass)
if prev_src.header_content.find(tag) < 0:
# no ids tag found, issue a warning and do nothing
self.warning(
"wxGlade ids block not found for %s, ids declarations "
"code NOT generated" % code_obj.name
)
else:
prev_src.header_content = prev_src.header_content.\
replace(tag, "".join(header_buffer))
header_buffer = [
self.tabs(1) + '// begin wxGlade: %s::methods\n' % \
code_obj.klass,
self.tabs(1) + 'void set_properties();\n',
self.tabs(1) + 'void do_layout();\n',
self.tabs(1) + '// end wxGlade\n',
]
tag = '<%swxGlade replace %s methods>' % (self.nonce, code_obj.klass)
if prev_src.header_content.find(tag) < 0:
# no methods tag found, issue a warning and do nothing
self.warning(
"wxGlade methods block not found for %s, methods "
"declarations code NOT generated" % code_obj.name
)
else:
prev_src.header_content = prev_src.header_content.\
replace(tag, "".join(header_buffer))
header_buffer = []
hwrite = header_buffer.append
hwrite(self.tabs(1) + '// begin wxGlade: %s::attributes\n' % code_obj.klass)
for o_type, o_name in self.classes[code_obj.klass].sub_objs:
hwrite(self.tabs(1) + '%s* %s;\n' % (o_type, o_name))
hwrite(self.tabs(1) + '// end wxGlade\n')
tag = '<%swxGlade replace %s attributes>' % (self.nonce, code_obj.klass)
if prev_src.header_content.find(tag) < 0:
# no attributes tag found, issue a warning and do nothing
self.warning(
"wxGlade attributes block not found for %s, attributes "
"declarations code NOT generated" % code_obj.name
)
else:
prev_src.header_content = prev_src.header_content.\
replace(tag, "".join(header_buffer))
header_buffer = []
hwrite = header_buffer.append
# ALB 2004-12-08 event handling
if event_handlers:
already_there = prev_src.event_handlers.get(code_obj.klass, {})
t = self.tabs(1)
for tpl in event_handlers:
if len(tpl) == 4:
win_id, event, handler, evt_type = tpl
else:
win_id, event, handler = tpl
evt_type = 'wxCommandEvent'
if handler not in already_there:
# Sebastien JEFFROY & Steve MULLER contribution :
# Adding virtual attribute permits to derivate from the
# class generated by wxGlade
hwrite(t + 'virtual void %s(%s &event); // wxGlade: '
'<event_handler>\n' % (handler, evt_type))
already_there[handler] = 1
if code_obj.klass not in prev_src.event_table_def:
hwrite('\nprotected:\n')
hwrite(self.tabs(1) + 'DECLARE_EVENT_TABLE()\n')
tag = '<%swxGlade event_handlers %s>' % (self.nonce, code_obj.klass)
if prev_src.header_content.find(tag) < 0:
# no attributes tag found, issue a warning and do nothing
self.warning(
"wxGlade events block not found for %s, event table code "
"NOT generated" % code_obj.name
)
else:
prev_src.header_content = prev_src.header_content.\
replace(tag, "".join(header_buffer))
# source file
# set the window's style
prop = code_obj.properties
style = prop.get("style", None)
if style:
sign_inst = sign_inst.replace('style', '%s' % style)
# constructor
if is_new:
base = "%s(%s)" % (code_obj.base, sign_inst)
if custom_base:
bases = [b.strip() for b in custom_base.split(',')]
if bases:
base = "%s(%s)" % (bases[0], sign_inst)
rest = ", ".join([b + "()" for b in bases[1:]])
if rest:
base += ", " + rest
swrite('\n%s::%s(%s):\n%s%s\n{\n' % (code_obj.klass,
code_obj.klass,
sign_decl2,
self.tabs(1),
base))
swrite(self.tabs(1) + '// begin wxGlade: %s::%s\n' % (code_obj.klass,
code_obj.klass))
tab = self.tabs(1)
init_lines = self.classes[code_obj.klass].init
parents_init = self.classes[code_obj.klass].parents_init
parents_init.reverse()
for l in parents_init:
swrite(tab + l)
for l in init_lines:
swrite(tab + l)
# now check if there are extra lines to add to the constructor
if hasattr(builder, 'get_init_code'):
for l in builder.get_init_code(code_obj):
swrite(tab + l)
swrite(self.tmpl_ctor_call_layout % {
'tab': tab,
})
# end tag
swrite('%s%s end wxGlade\n' % (tab, self.comment_sign))
# write class function end statement
if self.tmpl_cfunc_end and is_new:
swrite(self.tmpl_cfunc_end % {
'tab': tab,
})
# replace code inside existing constructor block
if prev_src and not is_new:
# replace the lines inside the ctor wxGlade block
# with the new ones
tag = '<%swxGlade replace %s %s>' % (self.nonce, code_obj.klass,
code_obj.klass)
if prev_src.source_content.find(tag) < 0:
# no constructor tag found, issue a warning and do nothing
self.warning(
"wxGlade %s::%s block not found, relative code NOT "
"generated" % (code_obj.klass, code_obj.klass)
)
else:
prev_src.source_content = prev_src.source_content.\
replace(tag, "".join(source_buffer))
source_buffer = []
swrite = source_buffer.append
# generate code for __set_properties()
code_lines = self.generate_code_set_properties(
builder,
code_obj,
is_new,
tab
)
source_buffer.extend(code_lines)
# replace code inside existing __set_properties() function
if prev_src and not is_new:
# replace the lines inside the set_properties wxGlade block
# with the new ones
tag = '<%swxGlade replace %s set_properties>' % (self.nonce, code_obj.klass)
if prev_src.source_content.find(tag) < 0:
# no set_properties tag found, issue a warning and do nothing
self.warning(
"wxGlade %s::set_properties block not found, relative "
"code NOT generated" % code_obj.klass
)
else:
prev_src.source_content = prev_src.source_content.\
replace(tag, "".join(source_buffer))
source_buffer = []
swrite = source_buffer.append
# generate code for __do_layout()
code_lines = self.generate_code_do_layout(
builder,
code_obj,
is_new,
tab
)
source_buffer.extend(code_lines)
# replace code inside existing do_layout() function
if prev_src and not is_new:
# replace the lines inside the do_layout wxGlade block
# with the new ones
tag = '<%swxGlade replace %s %s>' % (self.nonce, code_obj.klass,
'do_layout')
if prev_src.source_content.find(tag) < 0:
# no do_layout tag found, issue a warning and do nothing
self.warning(
"wxGlade do_layout block not found for %s, do_layout "
"code NOT generated" % code_obj.name
)
else:
prev_src.source_content = prev_src.source_content.\
replace(tag, "".join(source_buffer))
source_buffer = []
swrite = source_buffer.append
# generate code for event table
code_lines = self.generate_code_event_table(
code_obj,
is_new,
tab,
prev_src,
event_handlers,
)
if prev_src and not is_new:
tag = '<%swxGlade replace %s event_table>' % (self.nonce, code_obj.klass)
if prev_src.source_content.find(tag) < 0:
# no constructor tag found, issue a warning and do nothing
self.warning(
"wxGlade %s::event_table block not found, relative "
"code NOT generated" % code_obj.klass
)
else:
prev_src.source_content = prev_src.source_content.replace(
tag,
"".join(code_lines),
)
else:
source_buffer.extend(code_lines)
# generate code for event handler stubs
code_lines = self.generate_code_event_handler(
code_obj,
is_new,
tab,
prev_src,
event_handlers,
)
# replace code inside existing event handlers
if prev_src and not is_new:
tag = '<%swxGlade add %s event handlers>' % \
(self.nonce, code_obj.klass)
if prev_src.source_content.find(tag) < 0:
# no constructor tag found, issue a warning and do nothing
self.warning(
"wxGlade %s event handlers marker not found, relative "
"code NOT generated" % code_obj.klass
)
else:
prev_src.source_content = prev_src.source_content.replace(
tag,
"".join(code_lines),
)
else:
source_buffer.extend(code_lines)
# the code has been generated
self.classes[code_obj.klass].done = True
if not self.multiple_files and prev_src:
# if this is a new class, add its code to the new_classes list of the
# SourceFileContent instance
if is_new:
prev_src.new_classes.append(
("".join(header_buffer), "".join(source_buffer))
)
return
if self.multiple_files:
if code_obj.base in self.obj_builders:
self.classes[code_obj.klass].dependencies.extend(
getattr(self.obj_builders[code_obj.base], 'extra_headers', []))
if prev_src:
tag = '<%swxGlade insert new_classes>' % self.nonce
prev_src.header_content = prev_src.header_content.replace(tag, "")
# insert the module dependencies of this class
extra_modules = self.classes[code_obj.klass].dependencies
#print 'extra_modules:', extra_modules, code_obj.base
# WARNING: there's a double space ' ' between 'replace' and
# 'dependencies' in the tag below, because there is no class name
# (see SourceFileContent, line ~147)
tag = '<%swxGlade replace dependencies>' % self.nonce
code = self._format_dependencies(extra_modules)
prev_src.header_content = prev_src.header_content.\
replace(tag, code)
# insert the extra code of this class
extra_code_h = "".join(self.classes[code_obj.klass].extra_code_h[::-1])
extra_code_cpp = \
"".join(self.classes[code_obj.klass].extra_code_cpp[::-1])
# if there's extra code but we are not overwriting existing
# sources, warn the user
if extra_code_h or extra_code_cpp:
self.warning(
'%s (or one of its chilren) has extra code classes, '
'but you are not overwriting existing sources: please '
'check that the resulting code is correct!' % \
code_obj.name
)
extra_code_h = self._tagcontent("::extracode", extra_code_h)
extra_code_cpp = self._tagcontent("::extracode", extra_code_cpp)
tag = '<%swxGlade replace extracode>' % self.nonce
prev_src.header_content = prev_src.header_content.replace(
tag, extra_code_h)
prev_src.source_content = prev_src.source_content.replace(
tag, extra_code_cpp)
# store the new file contents to disk
name = os.path.join(self.out_dir, code_obj.klass)
self.save_file(
name + self.header_extension,
prev_src.header_content,
content_only=True
)
self.save_file(
name + self.source_extension,
prev_src.source_content,
content_only=True
)
return
# create the new source file
header_file = os.path.join(self.out_dir, code_obj.klass + self.header_extension)
source_file = os.path.join(self.out_dir, code_obj.klass + self.source_extension)
hout = cStringIO.StringIO()
sout = cStringIO.StringIO()
# header file
hwrite = hout.write
# isolation directives
hn = os.path.basename(header_file).upper().replace('.', '_')
hwrite('#ifndef %s\n#define %s\n' % (hn, hn))
hwrite('\n')
# write the common lines
for line in self.header_lines:
hwrite(line)
hwrite('\n')
# write the module dependecies for this class
#extra_headers = classes[code_obj.klass].dependencies
extra_modules = self.classes[code_obj.klass].dependencies
code = self._format_dependencies(extra_modules)
hwrite(code)
hwrite('\n')
# insert the extra code of this class
extra_code_h = "".join(self.classes[code_obj.klass].extra_code_h[::-1])
extra_code_h = self._tagcontent('::extracode', extra_code_h)
hwrite(extra_code_h)
hwrite('\n')
# write the class body
for line in header_buffer:
hwrite(line)
hwrite('\n#endif // %s\n' % hn)
# source file
swrite = sout.write
# write the common lines
#for line in self.header_lines:
# swrite(line)
swrite(self.header_lines[0])
swrite('#include "%s"\n\n' % os.path.basename(header_file))
# insert the extra code of this class
extra_code_cpp = "".join(self.classes[code_obj.klass].extra_code_cpp[::-1])
extra_code_cpp = self._tagcontent('::extracode', extra_code_cpp)
swrite(extra_code_cpp)
swrite('\n')
# write the class implementation
for line in source_buffer:
swrite(line)
# store source to disk
self.save_file(header_file, hout.getvalue())
self.save_file(source_file, sout.getvalue())
hout.close()
sout.close()
else: # not self.multiple_files
# write the class body onto the single source file
hwrite = self.output_header.write
for line in header_buffer:
hwrite(line)
swrite = self.output_file.write
for line in source_buffer:
swrite(line)
def add_object(self, top_obj, sub_obj):
# get top level source code object and the widget builder instance
klass, builder = self._add_object_init(top_obj, sub_obj)
if not klass or not builder:
return
try:
init, ids, props, layout = builder.get_code(sub_obj)
except:
print sub_obj
raise # this shouldn't happen
if sub_obj.in_windows: # the object is a wxWindow instance
if sub_obj.is_container and not sub_obj.is_toplevel:
init.reverse()
klass.parents_init.extend(init)
else:
klass.init.extend(init)
if hasattr(builder, 'get_events'):
klass.event_handlers.extend(builder.get_events(sub_obj))
elif 'events' in sub_obj.properties:
id_name, id = self.generate_code_id(sub_obj)
for event, handler in sub_obj.properties['events'].iteritems():
klass.event_handlers.append((id, event, handler))
# try to see if there's some extra code to add to this class
extra_code = getattr(builder, 'extracode',
sub_obj.properties.get('extracode', ""))
if extra_code:
extra_code = re.sub(r'\\n', '\n', extra_code)
extra_code = re.split(re.compile(r'^###\s*$', re.M),
extra_code, 1)
klass.extra_code_h.append(extra_code[0])
if len(extra_code) > 1:
klass.extra_code_cpp.append(extra_code[1])
# if we are not overwriting existing source, warn the user
# about the presence of extra code
if not self.multiple_files and self.previous_source:
self.warning(
'%s has extra code, but you are not '
'overwriting existing sources: please check '
'that the resulting code is correct!' % \
sub_obj.name
)
klass.ids.extend(ids)
if sub_obj.klass != 'spacer':
# attribute is a special property which control whether
# sub_obj must be accessible as an attribute of top_obj,
# or as a local variable in the do_layout method
if self.test_attribute(sub_obj):
klass.sub_objs.append((sub_obj.klass, sub_obj.name))
else: # the object is a sizer
# ALB 2004-09-17: workaround (hack) for static box sizers...
if sub_obj.base == 'wxStaticBoxSizer':
klass.sub_objs.insert(0, ('wxStaticBox',
'%s_staticbox' % sub_obj.name))
klass.parents_init.insert(1, init.pop(0))
if self.test_attribute(sub_obj):
klass.sub_objs.append((sub_obj.klass, sub_obj.name))
klass.sizers_init.extend(init)
klass.props.extend(props)
klass.layout.extend(layout)
if self.multiple_files and \
(sub_obj.is_toplevel and sub_obj.base != sub_obj.klass):
#print top_obj.name, sub_obj.name
klass.dependencies.append(sub_obj.klass)
else:
if sub_obj.base in self.obj_builders:
headers = getattr(self.obj_builders[sub_obj.base],
'extra_headers', [])
klass.dependencies.extend(headers)
def generate_code_event_handler(self, code_obj, is_new, tab, prev_src, \
event_handlers):
"""\
Generate the event handler stubs
@param code_obj: Object to generate code for
@type code_obj: Instance of L{CodeObject}
@param is_new: Indicates if previous source code exists
@type is_new: Boolean
@param tab: Indentation of function body
@type tab: String
@param prev_src: Previous source code
@type prev_src: Instance of L{SourceFileContent}
@param event_handlers: List of event handlers
@rtype: List of strings
@see: L{tmpl_func_event_stub}
"""
code_lines = []
swrite = code_lines.append
if not event_handlers:
return []
tmpl_handler = """
void %(klass)s::%(handler)s(%(evt_type)s &event)
{
%(tab)sevent.Skip();
%(tab)s// notify the user that he hasn't implemented the event handler yet
%(tab)swxLogDebug(wxT("Event handler (%(klass)s::%(handler)s) not implemented yet"));
}
"""
if prev_src:
already_there = prev_src.event_handlers.get(code_obj.klass, {})
else:
already_there = {}
for tpl in event_handlers:
if len(tpl) == 4:
win_id, event, handler, evt_type = tpl
else:
win_id, event, handler = tpl
evt_type = 'wxCommandEvent'
if handler not in already_there:
swrite(tmpl_handler % {
'evt_type': evt_type,
'handler': handler,
'klass': code_obj.klass,
'tab': tab,
})
already_there[handler] = 1
if is_new or not prev_src:
swrite('\n\n')
swrite('// wxGlade: add %s event handlers\n' % code_obj.klass)
if is_new or not prev_src:
swrite('\n')
return code_lines
def generate_code_event_table(self, code_obj, is_new, tab, prev_src,
event_handlers):
"""\
Generate code for event table declaration.
@param code_obj: Object to generate code for
@type code_obj: Instance of L{CodeObject}
@param is_new: Indicates if previous source code exists
@type is_new: Boolean
@param tab: Indentation of function body
@type tab: String
@param prev_src: Previous source code
@type prev_src: Instance of L{SourceFileContent}
@param event_handlers: List of event handlers
@rtype: List of strings
"""
code_lines = []
swrite = code_lines.append
if not event_handlers:
return []
if prev_src and code_obj.klass in prev_src.event_table_decl:
has_event_table = True
else:
has_event_table = False
if is_new or not has_event_table:
swrite('\nBEGIN_EVENT_TABLE(%s, %s)\n' % \
(code_obj.klass, code_obj.base))
swrite(tab + '// begin wxGlade: %s::event_table\n' % code_obj.klass)
for tpl in event_handlers:
win_id, event, handler = tpl[:3]
swrite(tab + '%s(%s, %s::%s)\n' % \
(event, win_id, code_obj.klass, handler))
swrite(tab + '// end wxGlade\n')
if is_new or not has_event_table:
swrite('END_EVENT_TABLE();\n\n')
return code_lines
def generate_code_id(self, obj, id=None):
if id is None:
id = obj.properties.get('id')
if not id:
return '', 'wxID_ANY'
tokens = id.split('=', 1)
if len(tokens) == 2:
name, val = tokens
else:
return '', tokens[0] # we assume name is declared elsewhere
if not name:
return '', val
name = name.strip()
val = val.strip()
if val == '?':
val = 'wxID_HIGHEST + %d' % self.last_generated_id
self.last_generated_id += 1
else:
val = val
return '%s = %s' % (name, val), name
def generate_code_size(self, obj):
objname = self._get_code_name(obj)
if obj.is_toplevel:
name2 = 'this'
else:
name2 = obj.name
size = obj.properties.get('size', '').strip()
use_dialog_units = (size[-1] == 'd')
if not obj.parent:
method = 'SetSize'
else:
method = 'SetMinSize'
if use_dialog_units:
return '%s%s(wxDLG_UNIT(%s, wxSize(%s)));\n' % \
(objname, method, name2, size[:-1])
else:
return '%s%s(wxSize(%s));\n' % (objname, method, size)
def get_events_with_type(self, obj, evt_type):
"""\
Returns the list of event handlers defined for `obj', setting the type
of the argument of the handlers (i.e. the event parameter) to
`evt_type'
"""
ret = []
if 'events' not in obj.properties:
return ret
id_name, id = self.generate_code_id(obj)
for event, handler in obj.properties['events'].iteritems():
ret.append((id, event, handler, evt_type))
return ret
def quote_str(self, s, translate=True, escape_chars=True):
if not s:
return 'wxEmptyString'
s = s.replace('"', r'\"')
if escape_chars:
s = self._quote_str_pattern.sub(self._do_replace, s)
else:
s = s.replace('\\', r'\\') # just quote the backslashes
if self._use_gettext and translate:
return '_("%s")' % s
else:
return 'wxT("%s")' % s
def _get_code_name(self, obj):
if obj.is_toplevel:
return ''
else:
return '%s->' % obj.name
def _unique(self, sequence):
"""\
Strips all duplicates from sequence. Works only if items of sequence
are hashable
"""
tmp = {}
for item in sequence:
tmp[item] = 1
return tmp.keys()
def _format_dependencies(self, dependencies):
"""\
Format the dependecies output
@param dependencies: List if header files
@type dependencies: List of strings
@return: Changed content
@rtype: String
@see: L{_tagcontent()}
"""
dep_list = []
for dependency in self._unique(dependencies):
if dependency and ('"' != dependency[0] != '<'):
dep_list.append('#include "%s.h"\n' % dependency)
else:
dep_list.append('#include %s\n' % dependency)
code = self._tagcontent(
'::dependencies',
dep_list,
)
return code
# end of class CPPCodeWriter
writer = CPPCodeWriter()
"""\
The code writer is an instance of L{CPPCodeWriter}.
"""
language = writer.language
"""\
Language generated by this code generator
"""
|