initial commit, 4.5 stable

scene/gui/center_container.cpp

@@ -0,0 +1,95 @@
+/**************************************************************************/
+/*  center_container.cpp                                                  */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#include "center_container.h"
+
+Size2 CenterContainer::get_minimum_size() const {
+	if (use_top_left) {
+		return Size2();
+	}
+	Size2 ms;
+	for (int i = 0; i < get_child_count(); i++) {
+		Control *c = as_sortable_control(get_child(i), SortableVisibilityMode::VISIBLE);
+		if (!c) {
+			continue;
+		}
+		Size2 minsize = c->get_combined_minimum_size();
+		ms = ms.max(minsize);
+	}
+
+	return ms;
+}
+
+void CenterContainer::set_use_top_left(bool p_enable) {
+	if (use_top_left == p_enable) {
+		return;
+	}
+
+	use_top_left = p_enable;
+
+	update_minimum_size();
+	queue_sort();
+}
+
+bool CenterContainer::is_using_top_left() const {
+	return use_top_left;
+}
+
+Vector<int> CenterContainer::get_allowed_size_flags_horizontal() const {
+	return Vector<int>();
+}
+
+Vector<int> CenterContainer::get_allowed_size_flags_vertical() const {
+	return Vector<int>();
+}
+
+void CenterContainer::_notification(int p_what) {
+	switch (p_what) {
+		case NOTIFICATION_SORT_CHILDREN: {
+			Size2 size = get_size();
+			for (int i = 0; i < get_child_count(); i++) {
+				Control *c = as_sortable_control(get_child(i));
+				if (!c) {
+					continue;
+				}
+				Size2 minsize = c->get_combined_minimum_size();
+				Point2 ofs = use_top_left ? (-minsize * 0.5).floor() : ((size - minsize) / 2.0).floor();
+				fit_child_in_rect(c, Rect2(ofs, minsize));
+			}
+		} break;
+	}
+}
+
+void CenterContainer::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("set_use_top_left", "enable"), &CenterContainer::set_use_top_left);
+	ClassDB::bind_method(D_METHOD("is_using_top_left"), &CenterContainer::is_using_top_left);
+
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_top_left"), "set_use_top_left", "is_using_top_left");
+}