codegen.py

用python写的ide开发环境,巨强大,不过需要wxpython的支持

            else:
                if item.children:
                    name = self.get_name(item)
                    if name:
                        write('    '*tabs + '<object class="wxMenu" ' \
                              'name=%s>\n' % quoteattr(name))
                    else:
                        write('    '*tabs + '<object class="wxMenu">\n')
                else:
                    name = self.get_name(item)
                    if name:
                        write('    '*tabs + '<object class="wxMenuItem" ' \
                              'name=%s>\n' % quoteattr(name))
                    else:
                        write('    '*tabs + '<object class="wxMenuItem">\n')  
                if item.label:
                    # translate & into _ as accelerator marker
                    val = item.label.replace('&', '_')
                    write('    '*(tabs+1) + '<label>%s</label>\n' % \
                          escape(val))
                if item.help_str:
                    write('    '*(tabs+1) + '<help>%s</help>\n' % \
                          escape(item.help_str))
                if item.children:
                    for c in item.children:
                        self.append_item(c, outfile, tabs+1)
                elif item.checkable == '1':
                    write('    '*(tabs+1) + '<checkable>1</checkable>\n')
                elif item.radio == '1':
                    write('    '*(tabs+1) + '<radio>1</radio>\n')
                write('    '*tabs + '</object>\n')

        def get_name(self, item):
            if item.name: return item.name.strip()
            tokens = item.id.split('=')
            if tokens: return tokens[0].strip()
        
        def write(self, outfile, tabs):
            menus = self.code_obj.properties['menubar']
            write = outfile.write
            write('    '*tabs + '<object class="wxMenuBar" name=%s>\n' % \
                  quoteattr(self.name))
            for m in menus:
                self.append_item(m.root, outfile, tabs+1)
            write('    '*tabs + '</object>\n')

    # end of class MenuBarXrcObject
    
    return MenuBarXrcObject(obj)


class CppCodeGenerator:
    constructor = []

    def get_code(self, obj):
        """\
        generates C++ code for the menubar of a wxFrame.
        """
        cppgen = common.code_writers['C++']
        menus = obj.properties['menubar']
        init = [ '%s = new %s();\n' % (obj.name, obj.klass) ]
        init.extend(self.get_properties_code(obj))
        init.append('SetMenuBar(%s);\n' % obj.name)
        ids = self.get_ids_code(obj)
        return init, ids, [], []

    def get_properties_code(self, obj):
        cppgen = common.code_writers['C++']
        menus = obj.properties['menubar']
        out = []
        append = out.append

        def append_items(menu, items):
            for item in items:
                if item.name == '---': # item is a separator
                    append('%s->AppendSeparator();\n' % menu)
                    continue
                name, val = cppgen.generate_code_id(None, item.id)
                if not name and val == '-1':
                    id = 'wxNewId()'
                else:
                    #if name: ids.append(name)
                    id = val                
                if item.children:
                    if item.name: name = item.name
                    else: name = '%s_sub' % menu
                    append('wxMenu* %s = new wxMenu();\n' % name)
##                     if item.id: # generating id
##                         tokens = item.id.split('=')
##                         if len(tokens) > 1:
##                             id = tokens[0]
##                         else:
##                             id = item.id
##                     else: id = 'wxNewId()'
                    append_items(name, item.children)
                    append('%s->Append(%s, %s, %s, %s);\n' %
                           (menu, id, cppgen.quote_str(item.label),
                            name, cppgen.quote_str(item.help_str)))
                else:
##                     if item.id:
##                         tokens = item.id.split('=')
##                         if len(tokens) > 1:
##                             id = tokens[0]
##                         else:
##                             id = item.id
##                     else:
##                         id = 'wxNewId()'
                    item_type = 'wxITEM_NORMAL'
                    if item.checkable == '1':
                        item_type = 'wxITEM_CHECK'
                    elif item.radio == '1':
                        item_type = 'wxITEM_RADIO'
                    if item_type:
                        append('%s->Append(%s, %s, %s, %s);\n' %
                               (menu, id, cppgen.quote_str(item.label),
                                cppgen.quote_str(item.help_str), item_type))
                    else:
                        append('%s->Append(%s, %s, %s);\n' %
                               (menu, id, cppgen.quote_str(item.label),
                                cppgen.quote_str(item.help_str)))
        #print 'menus = %s' % menus

        if obj.is_toplevel: obj_name = ''
        else: obj_name = obj.name + '->'

        i = 1
        for m in menus:
            menu = m.root
            if menu.name: name = menu.name
            else:
                name = 'wxglade_tmp_menu_%s' % i
                i += 1
            append('wxMenu* %s = new wxMenu();\n' % name)
            if menu.children:
                append_items(name, menu.children)
            append('%sAppend(%s, %s);\n' %
                   (obj_name, name, cppgen.quote_str(menu.label)))

        return out

    def get_ids_code(self, obj):
        cppgen = common.code_writers['C++']
        ids = []
        menus = obj.properties['menubar']
        
        def collect_ids(items):
            for item in items:
                if item.name == '---': # item is a separator
                    continue # do nothing
                name, val = cppgen.generate_code_id(None, item.id)
                if name.find('=') != -1:
                    ids.append(name)
                if item.children:
##                     if item.id: # generating id
##                         tokens = item.id.split('=')
##                         if len(tokens) > 1:
##                             id = tokens[0]
##                             ids.append(' = '.join(tokens))
                    collect_ids(item.children)
##                 else:
##                     if item.id:
##                         tokens = item.id.split('=')
##                         if len(tokens) > 1:
##                             id = tokens[0]
##                             ids.append(' = '.join(tokens))

        for m in menus:
            if m.root.children:
                collect_ids(m.root.children)

        return ids

    def get_events(self, obj):
        cppgen = common.code_writers['C++']
        out = []

        def do_get(item):
            ret = []
            name, val = cppgen.generate_code_id(None, item.id)
            if not val: val = '-1' # but this is wrong anyway...
            if item.handler:
                ret.append((val, 'EVT_MENU', item.handler, 'wxCommandEvent'))
            if item.children:
                for c in item.children:
                    ret.extend(do_get(c))
            return ret

        for menu in obj.properties['menubar']:
            out.extend(do_get(menu.root))
        return out

# end of class CppCodeGenerator


def initialize():
    common.class_names['EditMenuBar'] = 'wxMenuBar'
    common.toplevels['EditMenuBar'] = 1

    pygen = common.code_writers.get('python')
    if pygen:
        pygen.add_widget_handler('wxMenuBar', PythonCodeGenerator())
        pygen.add_property_handler('menus', MenuHandler)
    xrcgen = common.code_writers.get('XRC')
    if xrcgen:
        xrcgen.add_widget_handler('wxMenuBar', xrc_code_generator)
        xrcgen.add_property_handler('menus', MenuHandler)
    cppgen = common.code_writers.get('C++')
    if cppgen:
        cppgen.add_widget_handler('wxMenuBar', CppCodeGenerator())
        cppgen.add_property_handler('menus', MenuHandler)