LibGUI: Remove leading G from filenames

Libraries/LibGUI/Model.cpp

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <LibGUI/AbstractView.h>
+#include <LibGUI/Model.h>
+
+namespace GUI {
+
+Model::Model()
+{
+}
+
+Model::~Model()
+{
+}
+
+void Model::register_view(Badge<AbstractView>, AbstractView& view)
+{
+    m_views.set(&view);
+}
+
+void Model::unregister_view(Badge<AbstractView>, AbstractView& view)
+{
+    m_views.remove(&view);
+}
+
+void Model::for_each_view(Function<void(AbstractView&)> callback)
+{
+    for (auto* view : m_views)
+        callback(*view);
+}
+
+void Model::did_update()
+{
+    if (on_update)
+        on_update();
+    for_each_view([](auto& view) {
+        view.did_update_model();
+    });
+}
+
+ModelIndex Model::create_index(int row, int column, const void* data) const
+{
+    return ModelIndex(*this, row, column, const_cast<void*>(data));
+}
+
+ModelIndex Model::sibling(int row, int column, const ModelIndex& parent) const
+{
+    if (!parent.is_valid())
+        return index(row, column, {});
+    int row_count = this->row_count(parent);
+    if (row < 0 || row > row_count)
+        return {};
+    return index(row, column, parent);
+}
+
+}