codegen.py

用python写的ide开发环境,巨强大,不过需要wxpython的支持

# codegen.py: code generator functions for wxMenuBar objects
# $Id: codegen.py,v 1.21 2007/03/27 07:01:57 agriggio Exp $
#
# Copyright (c) 2002-2007 Alberto Griggio <[e-mail]>
# License: MIT (see license.txt)
# THIS PROGRAM COMES WITH NO WARRANTY

import common
from MenuTree import *

class PythonCodeGenerator:
    def get_properties_code(self, obj):
        return []
        
    def get_init_code(self, obj):
        prop = obj.properties
        pygen = common.code_writers['python']
        cn = pygen.cn
        out = []
        append = out.append
        menus = obj.properties['menubar']
        ids = []

        def append_items(menu, items):
            for item in items:
                if item.name == '---': # item is a separator
                    append('%s.AppendSeparator()\n' % menu)
                    continue
                name, val = pygen.generate_code_id(None, item.id)
                if obj.preview or (not name and ( not val or val == '-1')):
                    id = cn('wxNewId()')
                else:
                    if name: ids.append(name)
                    id = val
                if item.children:
                    if item.name: name = item.name
                    else: name = '%s_sub' % menu
                    append(('%s = ' + cn('wxMenu') + '()\n') % name)
##                     if not obj.preview and item.id: # generating id
##                         tokens = item.id.split('=')
##                         if len(tokens) > 1:
##                             id = tokens[0]
##                             ids.append(' = '.join(tokens) + '\n')
##                         else:
##                             id = item.id
##                     else: id = 'wxNewId()'
                    append_items(name, item.children)
                    append('%s.AppendMenu(%s, %s, %s, %s)\n' %
                           (menu, id, pygen.quote_str(item.label),
                            name, pygen.quote_str(item.help_str)))
                else:
##                     if not obj.preview and item.id: # no ids for preview
##                         tokens = item.id.split('=')
##                         if len(tokens) > 1:
##                             id = tokens[0]
##                             ids.append(' = '.join(tokens) + '\n')
##                         else:
##                             id = item.id
##                     else: id = 'wxNewId()'

                    item_type = cn('wxITEM_NORMAL')
                    if item.checkable == '1':
                        item_type = cn('wxITEM_CHECK')
                    elif item.radio == '1':
                        item_type = cn('wxITEM_RADIO')
                    if item.name:
                        # ALB 2004-18-07
                        name = 'self.%s' % item.name
                        if item_type:
                            append('%s = %s(%s, %s, %s, %s, %s)\n' %
                                   (name, cn('wxMenuItem'), menu, id,
                                    pygen.quote_str(item.label),
                                    pygen.quote_str(item.help_str), item_type))
                        else:
                            append('%s = %s(%s, %s, %s, %s)\n' %
                                   (name, cn('wxMenuItem'), menu,
                                    id, pygen.quote_str(item.label),
                                    pygen.quote_str(item.help_str)))
                        append('%s.AppendItem(%s)\n' % (menu, name))
                    else:
                        if item_type:
                            append('%s.Append(%s, %s, %s, %s)\n' %
                                   (menu, id, pygen.quote_str(item.label),
                                    pygen.quote_str(item.help_str), item_type))
                        else:
                            append('%s.Append(%s, %s, %s)\n' %
                                   (menu, id, pygen.quote_str(item.label),
                                    pygen.quote_str(item.help_str)))
        #print 'menus = %s' % menus

        if obj.is_toplevel: obj_name = 'self'
        else: obj_name = 'self.' + obj.name

        for m in menus:
            menu = m.root
            if menu.name: name = 'self.' + menu.name
            else: name = 'wxglade_tmp_menu'
            append(('%s = ' + cn('wxMenu') + '()\n') % name)
            if menu.children:
                append_items(name, menu.children)
            append('%s.Append(%s, %s)\n' %
                   (obj_name, name, pygen.quote_str(menu.label)))

        return ids + out

    def get_code(self, obj):
        """\
        function that generates Python code for the menubar of a wxFrame.
        """
        pygen = common.code_writers['python']
        if obj.klass == obj.base: klass = pygen.cn(obj.klass)
        else: klass = obj.klass
        init = [ '\n', '# Menu Bar\n', 'self.%s = %s()\n' %
                 (obj.name, klass) ]
##                  'self.SetMenuBar(self.%s)\n' % obj.name ]
        init.extend(self.get_init_code(obj))
        init.append('self.SetMenuBar(self.%s)\n' % obj.name)
        init.append('# Menu Bar end\n')
        return init, [], []

    # 2004-12-05
    def get_events(self, obj):
        pygen = common.code_writers['python']
        cn = pygen.cn
        out = []

        #print 'get_events', obj.properties['menubar']

        def do_get(item):
            ret = []
            if item.name and pygen.for_version > (2, 4):
                val = '#self.%s' % item.name # see py_codegen.py, ~480
            else:
                name, val = pygen.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))
            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 PythonCodeGenerator


class MenuHandler:
    """Handler for menus and menu items of a menubar"""
    item_attrs = ('label', 'id', 'name', 'help_str', 'checkable', 'radio',
                  'handler')
    def __init__(self):
        self.menu_depth = 0
        self.menus = []
        self.curr_menu = None
        self.curr_item = None
        self.attr_val = []

    def start_elem(self, name, attrs):
        if name == 'menu':
            self.menu_depth += 1
            label = attrs['label']
            if self.menu_depth == 1:
                t = MenuTree(attrs['name'], label)
                self.curr_menu = t.root
                self.menus.append(t)
                return
            id = attrs.get('itemid', '')
            handler = attrs.get('handler', '')
            node = MenuTree.Node(label=label, name=attrs['name'], id=id,
                                 handler=handler)
            node.parent = self.curr_menu
            self.curr_menu.children.append(node)
            self.curr_menu = node
        elif name == 'item':
            self.curr_item = MenuTree.Node()

    def end_elem(self, name, code_obj):
        if name == 'menus':
            code_obj.properties['menubar'] = self.menus
            return True
        if name == 'item' and self.curr_menu:
            self.curr_menu.children.append(self.curr_item)
            self.curr_item.parent = self.curr_menu
        elif name == 'menu':
            self.menu_depth -= 1
            self.curr_menu = self.curr_menu.parent
        elif name in self.item_attrs:
            setattr(self.curr_item, name, "".join(self.attr_val))
            self.attr_val = []

    def char_data(self, data):
        self.attr_val.append(data)

# end of class MenuHandler


def xrc_code_generator(obj):
    """\
    function that generates XRC code for the menubar of a wxFrame.
    """
    from xml.sax.saxutils import escape, quoteattr
    xrcgen = common.code_writers['XRC']
    
    class MenuBarXrcObject(xrcgen.DefaultXrcObject):
        def append_item(self, item, outfile, tabs):
            write = outfile.write
            if item.name == '---': # item is a separator
                write('    '*tabs + '<object class="separator"/>\n')