Add Gtk.SizeGroup

gtkblueprinttool/extensions/__init__.py

@@ -2,11 +2,12 @@
 templates. """
 
 from .gtk_a11y import a11y
-from .gtk_menu import menu
-from .gtk_styles import styles
-from .gtk_layout import layout
 from .gtk_file_filter import mime_types, patterns, suffixes
+from .gtk_layout import layout
+from .gtk_menu import menu
+from .gtk_size_group import widgets
+from .gtk_styles import styles
 
 OBJECT_HOOKS = [menu]
 
-OBJECT_CONTENT_HOOKS = [a11y, styles, layout, mime_types, patterns, suffixes]
+OBJECT_CONTENT_HOOKS = [a11y, styles, layout, mime_types, patterns, suffixes, widgets]

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];")

tests/sample_errors/size_group_non_widget.blp

@@ -0,0 +1,9 @@
+using Gtk 4.0;
+using GObject 2.0;
+
+SizeGroup {
+  mode: horizontal;
+  widgets: [object];
+}
+
+GObject.Object object {}

tests/sample_errors/size_group_non_widget.err

@@ -0,0 +1 @@
+6,13,6,Cannot assign GObject.Object to Gtk.Widget

tests/sample_errors/size_group_obj_dne.blp

@@ -0,0 +1,7 @@
+using Gtk 4.0;
+using GObject 2.0;
+
+SizeGroup {
+  mode: horizontal;
+  widgets: [object];
+}

tests/sample_errors/size_group_obj_dne.err

@@ -0,0 +1 @@
+6,13,6,Could not find object with ID object

tests/samples/size_group.blp

@@ -0,0 +1,9 @@
+using Gtk 4.0;
+
+SizeGroup {
+  mode: horizontal;
+  widgets: [label, button];
+}
+
+Label label {}
+Button button {}

tests/samples/size_group.ui

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface>
+  <requires lib="gtk" version="4.0"/>
+  <object class="GtkSizeGroup">
+    <property name="mode">horizontal</property>
+    <widgets>
+      <widget name="label"/>
+      <widget name="button"/>
+    </widgets>
+  </object>
+  <object class="GtkLabel" id="label"></object>
+  <object class="GtkButton" id="button"></object>
+</interface>

tests/test_samples.py

@@ -103,6 +103,7 @@ class TestSamples(unittest.TestCase):
         self.assert_sample("object_prop")
         self.assert_sample("property")
         self.assert_sample("signal")
+        self.assert_sample("size_group")
         self.assert_sample("strings")
         self.assert_sample("style")
         self.assert_sample("template")
@@ -125,5 +126,7 @@ class TestSamples(unittest.TestCase):
         self.assert_sample_error("obj_prop_type")
         self.assert_sample_error("property_dne")
         self.assert_sample_error("signal_dne")
+        self.assert_sample_error("size_group_non_widget")
+        self.assert_sample_error("size_group_obj_dne")
         self.assert_sample_error("two_templates")
         self.assert_sample_error("using_invalid_namespace")