/*************************************************************************/ /* container.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* 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 "container.h" #include "core/message_queue.h" #include "scene/scene_string_names.h" void Container::_child_minsize_changed() { //Size2 ms = get_combined_minimum_size(); //if (ms.width > get_size().width || ms.height > get_size().height) { minimum_size_changed(); queue_sort(); } void Container::add_child_notify(Node *p_child) { Control::add_child_notify(p_child); Control *control = Object::cast_to<Control>(p_child); if (!control) return; control->connect("size_flags_changed", this, "queue_sort"); control->connect("minimum_size_changed", this, "_child_minsize_changed"); control->connect("visibility_changed", this, "_child_minsize_changed"); minimum_size_changed(); queue_sort(); } void Container::move_child_notify(Node *p_child) { Control::move_child_notify(p_child); if (!Object::cast_to<Control>(p_child)) return; minimum_size_changed(); queue_sort(); } void Container::remove_child_notify(Node *p_child) { Control::remove_child_notify(p_child); Control *control = Object::cast_to<Control>(p_child); if (!control) return; control->disconnect("size_flags_changed", this, "queue_sort"); control->disconnect("minimum_size_changed", this, "_child_minsize_changed"); control->disconnect("visibility_changed", this, "_child_minsize_changed"); minimum_size_changed(); queue_sort(); } void Container::_sort_children() { if (!is_inside_tree()) return; notification(NOTIFICATION_SORT_CHILDREN); emit_signal(SceneStringNames::get_singleton()->sort_children); pending_sort = false; } void Container::fit_child_in_rect(Control *p_child, const Rect2 &p_rect) { ERR_FAIL_COND(!p_child); ERR_FAIL_COND(p_child->get_parent() != this); Size2 minsize = p_child->get_combined_minimum_size(); Rect2 r = p_rect; if (!(p_child->get_h_size_flags() & SIZE_FILL)) { r.size.x = minsize.width; if (p_child->get_h_size_flags() & SIZE_SHRINK_END) { r.position.x += p_rect.size.width - minsize.width; } else if (p_child->get_h_size_flags() & SIZE_SHRINK_CENTER) { r.position.x += Math::floor((p_rect.size.x - minsize.width) / 2); } else { r.position.x += 0; } } if (!(p_child->get_v_size_flags() & SIZE_FILL)) { r.size.y = minsize.y; if (p_child->get_v_size_flags() & SIZE_SHRINK_END) { r.position.y += p_rect.size.height - minsize.height; } else if (p_child->get_v_size_flags() & SIZE_SHRINK_CENTER) { r.position.y += Math::floor((p_rect.size.y - minsize.height) / 2); } else { r.position.y += 0; } } for (int i = 0; i < 4; i++) p_child->set_anchor(Margin(i), ANCHOR_BEGIN); p_child->set_position(r.position); p_child->set_size(r.size); p_child->set_rotation(0); p_child->set_scale(Vector2(1, 1)); } void Container::queue_sort() { if (!is_inside_tree()) return; if (pending_sort) return; MessageQueue::get_singleton()->push_call(this, "_sort_children"); pending_sort = true; } void Container::_notification(int p_what) { switch (p_what) { case NOTIFICATION_ENTER_TREE: { pending_sort = false; queue_sort(); } break; case NOTIFICATION_RESIZED: { queue_sort(); } break; case NOTIFICATION_THEME_CHANGED: { queue_sort(); } break; case NOTIFICATION_VISIBILITY_CHANGED: { if (is_visible_in_tree()) { queue_sort(); } } break; } } String Container::get_configuration_warning() const { String warning = Control::get_configuration_warning(); if (get_class() == "Container" && get_script().is_null()) { if (warning != String()) { warning += "\n\n"; } warning += TTR("Container by itself serves no purpose unless a script configures its children placement behavior.\nIf you don't intend to add a script, use a plain Control node instead."); } return warning; } void Container::_bind_methods() { ClassDB::bind_method(D_METHOD("_sort_children"), &Container::_sort_children); ClassDB::bind_method(D_METHOD("_child_minsize_changed"), &Container::_child_minsize_changed); ClassDB::bind_method(D_METHOD("queue_sort"), &Container::queue_sort); ClassDB::bind_method(D_METHOD("fit_child_in_rect", "child", "rect"), &Container::fit_child_in_rect); BIND_CONSTANT(NOTIFICATION_SORT_CHILDREN); ADD_SIGNAL(MethodInfo("sort_children")); } Container::Container() { pending_sort = false; // All containers should let mouse events pass by default. set_mouse_filter(MOUSE_FILTER_PASS); }