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82 lines
2.3 KiB
Python
82 lines
2.3 KiB
Python
# gtk_layout.py
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#
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# Copyright 2021 James Westman <james@jwestman.net>
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# SPDX-License-Identifier: LGPL-3.0-or-later
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from ..ast import BaseAttribute
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from ..ast_utils import AstNode, validate
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from ..completions_utils import *
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from ..lsp_utils import Completion, CompletionItemKind
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from ..parse_tree import *
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from ..parser_utils import *
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from ..xml_emitter import XmlEmitter
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class Layout(AstNode):
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@validate("layout")
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def container_is_widget(self):
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widget = self.root.gir.get_type("Widget", "Gtk")
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container_type = self.parent_by_type(ast.Object).gir_class
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if container_type and not container_type.assignable_to(widget):
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raise CompileError(f"{container_type.full_name} is not a {widget.full_name}, so it doesn't have layout properties")
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def emit_xml(self, xml: XmlEmitter):
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xml.start_tag("layout")
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for child in self.children:
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child.emit_xml(xml)
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xml.end_tag()
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class LayoutProperty(BaseAttribute):
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tag_name = "property"
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@property
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def value_type(self):
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# there isn't really a way to validate these
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return None
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layout_prop = Group(
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LayoutProperty,
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Statement(
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UseIdent("name"),
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Op(":"),
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value.expected("a value"),
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)
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)
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layout = Group(
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Layout,
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Sequence(
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Keyword("layout", True),
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OpenBlock().expected("`{`"),
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Until(layout_prop, CloseBlock()),
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)
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)
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@completer(
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applies_in=[ast.ObjectContent],
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matches=new_statement_patterns,
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)
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def layout_completer(ast_node, match_variables):
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yield Completion(
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"layout", CompletionItemKind.Snippet,
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snippet="layout {\n $0\n}"
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)
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