Add Gtk.SizeGroup

gtkblueprinttool/extensions/gtk_size_group.py

@@ -0,0 +1,82 @@
+# gtk_size_group.py
+#
+# Copyright 2021 James Westman <james@jwestman.net>
+#
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as
+# published by the Free Software Foundation; either version 3 of the
+# License, or (at your option) any later version.
+#
+# This file is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# SPDX-License-Identifier: LGPL-3.0-or-later
+
+
+from .. import ast
+from ..ast_utils import AstNode, validate
+from ..completions_utils import *
+from ..lsp_utils import Completion, CompletionItemKind
+from ..parse_tree import *
+from ..parser_utils import *
+from ..xml_emitter import XmlEmitter
+
+
+class Widgets(AstNode):
+    def emit_xml(self, xml: XmlEmitter):
+        xml.start_tag("widgets")
+        for child in self.children:
+            child.emit_xml(xml)
+        xml.end_tag()
+
+
+class Widget(AstNode):
+    @validate("name")
+    def obj_widget(self):
+        object = self.root.objects_by_id.get(self.tokens["name"])
+        type = self.root.gir.get_type("Widget", "Gtk")
+        if object is None:
+            raise CompileError(
+                f"Could not find object with ID {self.tokens['name']}",
+                did_you_mean=(self.tokens['name'], self.root.objects_by_id.keys()),
+            )
+        elif object.gir_class and not object.gir_class.assignable_to(type):
+            raise CompileError(
+                f"Cannot assign {object.gir_class.full_name} to {type.full_name}"
+            )
+
+    def emit_xml(self, xml: XmlEmitter):
+        xml.put_self_closing("widget", name=self.tokens["name"])
+
+
+widgets = Group(
+    Widgets,
+    Statement(
+        Keyword("widgets"),
+        Op(":"),
+        OpenBracket(),
+        Delimited(
+            Group(
+                Widget,
+                UseIdent("name"),
+            ),
+            Comma(),
+        ),
+        CloseBracket(),
+    )
+)
+
+
+@completer(
+    applies_in=[ast.ObjectContent],
+    matches=new_statement_patterns,
+)
+def file_filter_completer(ast_node, match_variables):
+    file_filter = ast_node.root.gir.get_type("SizeGroup", "Gtk")
+    if ast_node.gir_class and ast_node.gir_class.assignable_to(file_filter):
+        yield Completion("widgets", CompletionItemKind.Snippet, snippet="mime-types: [$0];")