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			98 lines
		
	
	
	
		
			3.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			98 lines
		
	
	
	
		
			3.8 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /*************************************************************************/
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| /*  center_container.cpp                                                 */
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| /*************************************************************************/
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| /*                       This file is part of:                           */
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| /*                           GODOT ENGINE                                */
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| /*                      https://godotengine.org                          */
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| /*************************************************************************/
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| /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
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| /* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
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| /*                                                                       */
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| /* Permission is hereby granted, free of charge, to any person obtaining */
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| /* a copy of this software and associated documentation files (the       */
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| /* "Software"), to deal in the Software without restriction, including   */
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| /* without limitation the rights to use, copy, modify, merge, publish,   */
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| /* distribute, sublicense, and/or sell copies of the Software, and to    */
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| /* permit persons to whom the Software is furnished to do so, subject to */
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| /* the following conditions:                                             */
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| /*                                                                       */
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| /* The above copyright notice and this permission notice shall be        */
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| /* included in all copies or substantial portions of the Software.       */
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| /*                                                                       */
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| /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
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| /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
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| /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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| /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
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| /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
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| /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
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| /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
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| /*************************************************************************/
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| 
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| #include "center_container.h"
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| 
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| Size2 CenterContainer::get_minimum_size() const {
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| 	if (use_top_left) {
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| 		return Size2();
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| 	}
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| 	Size2 ms;
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| 	for (int i = 0; i < get_child_count(); i++) {
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| 		Control *c = Object::cast_to<Control>(get_child(i));
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| 		if (!c) {
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| 			continue;
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| 		}
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| 		if (c->is_set_as_top_level()) {
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| 			continue;
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| 		}
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| 		if (!c->is_visible()) {
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| 			continue;
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| 		}
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| 		Size2 minsize = c->get_combined_minimum_size();
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| 		ms.width = MAX(ms.width, minsize.width);
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| 		ms.height = MAX(ms.height, minsize.height);
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| 	}
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| 
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| 	return ms;
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| }
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| 
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| void CenterContainer::set_use_top_left(bool p_enable) {
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| 	if (use_top_left == p_enable) {
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| 		return;
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| 	}
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| 
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| 	use_top_left = p_enable;
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| 
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| 	minimum_size_changed();
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| 	queue_sort();
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| }
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| 
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| bool CenterContainer::is_using_top_left() const {
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| 	return use_top_left;
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| }
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| 
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| void CenterContainer::_notification(int p_what) {
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| 	if (p_what == NOTIFICATION_SORT_CHILDREN) {
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| 		Size2 size = get_size();
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| 		for (int i = 0; i < get_child_count(); i++) {
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| 			Control *c = Object::cast_to<Control>(get_child(i));
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| 			if (!c) {
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| 				continue;
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| 			}
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| 			if (c->is_set_as_top_level()) {
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| 				continue;
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| 			}
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| 
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| 			Size2 minsize = c->get_combined_minimum_size();
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| 			Point2 ofs = use_top_left ? (-minsize * 0.5).floor() : ((size - minsize) / 2.0).floor();
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| 			fit_child_in_rect(c, Rect2(ofs, minsize));
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| 		}
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| 	}
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| }
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| 
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| void CenterContainer::_bind_methods() {
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| 	ClassDB::bind_method(D_METHOD("set_use_top_left", "enable"), &CenterContainer::set_use_top_left);
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| 	ClassDB::bind_method(D_METHOD("is_using_top_left"), &CenterContainer::is_using_top_left);
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| 
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| 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_top_left"), "set_use_top_left", "is_using_top_left");
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| }
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| 
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| CenterContainer::CenterContainer() {}
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