/*************************************************************************/ /* aspect_ratio_container.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2022 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 "aspect_ratio_container.h" Size2 AspectRatioContainer::get_minimum_size() const { Size2 ms; for (int i = 0; i < get_child_count(); i++) { Control *c = Object::cast_to(get_child(i)); if (!c) { continue; } if (c->is_set_as_top_level()) { continue; } if (!c->is_visible()) { continue; } Size2 minsize = c->get_combined_minimum_size(); ms.width = MAX(ms.width, minsize.width); ms.height = MAX(ms.height, minsize.height); } return ms; } void AspectRatioContainer::set_ratio(float p_ratio) { ratio = p_ratio; queue_sort(); } void AspectRatioContainer::set_stretch_mode(StretchMode p_mode) { stretch_mode = p_mode; queue_sort(); } void AspectRatioContainer::set_alignment_horizontal(AlignmentMode p_alignment_horizontal) { alignment_horizontal = p_alignment_horizontal; queue_sort(); } void AspectRatioContainer::set_alignment_vertical(AlignmentMode p_alignment_vertical) { alignment_vertical = p_alignment_vertical; queue_sort(); } Vector AspectRatioContainer::get_allowed_size_flags_horizontal() const { Vector flags; flags.append(SIZE_FILL); flags.append(SIZE_SHRINK_BEGIN); flags.append(SIZE_SHRINK_CENTER); flags.append(SIZE_SHRINK_END); return flags; } Vector AspectRatioContainer::get_allowed_size_flags_vertical() const { Vector flags; flags.append(SIZE_FILL); flags.append(SIZE_SHRINK_BEGIN); flags.append(SIZE_SHRINK_CENTER); flags.append(SIZE_SHRINK_END); return flags; } void AspectRatioContainer::_notification(int p_what) { switch (p_what) { case NOTIFICATION_SORT_CHILDREN: { bool rtl = is_layout_rtl(); Size2 size = get_size(); for (int i = 0; i < get_child_count(); i++) { Control *c = Object::cast_to(get_child(i)); if (!c) { continue; } if (c->is_set_as_top_level()) { continue; } Size2 child_minsize = c->get_combined_minimum_size(); Size2 child_size = Size2(ratio, 1.0); float scale_factor = 1.0; switch (stretch_mode) { case STRETCH_WIDTH_CONTROLS_HEIGHT: { scale_factor = size.x / child_size.x; } break; case STRETCH_HEIGHT_CONTROLS_WIDTH: { scale_factor = size.y / child_size.y; } break; case STRETCH_FIT: { scale_factor = MIN(size.x / child_size.x, size.y / child_size.y); } break; case STRETCH_COVER: { scale_factor = MAX(size.x / child_size.x, size.y / child_size.y); } break; } child_size *= scale_factor; child_size.x = MAX(child_size.x, child_minsize.x); child_size.y = MAX(child_size.y, child_minsize.y); float align_x = 0.5; switch (alignment_horizontal) { case ALIGNMENT_BEGIN: { align_x = 0.0; } break; case ALIGNMENT_CENTER: { align_x = 0.5; } break; case ALIGNMENT_END: { align_x = 1.0; } break; } float align_y = 0.5; switch (alignment_vertical) { case ALIGNMENT_BEGIN: { align_y = 0.0; } break; case ALIGNMENT_CENTER: { align_y = 0.5; } break; case ALIGNMENT_END: { align_y = 1.0; } break; } Vector2 offset = (size - child_size) * Vector2(align_x, align_y); if (rtl) { fit_child_in_rect(c, Rect2(Vector2(size.x - offset.x - child_size.x, offset.y), child_size)); } else { fit_child_in_rect(c, Rect2(offset, child_size)); } } } break; } } void AspectRatioContainer::_bind_methods() { ClassDB::bind_method(D_METHOD("set_ratio", "ratio"), &AspectRatioContainer::set_ratio); ClassDB::bind_method(D_METHOD("get_ratio"), &AspectRatioContainer::get_ratio); ClassDB::bind_method(D_METHOD("set_stretch_mode", "stretch_mode"), &AspectRatioContainer::set_stretch_mode); ClassDB::bind_method(D_METHOD("get_stretch_mode"), &AspectRatioContainer::get_stretch_mode); ClassDB::bind_method(D_METHOD("set_alignment_horizontal", "alignment_horizontal"), &AspectRatioContainer::set_alignment_horizontal); ClassDB::bind_method(D_METHOD("get_alignment_horizontal"), &AspectRatioContainer::get_alignment_horizontal); ClassDB::bind_method(D_METHOD("set_alignment_vertical", "alignment_vertical"), &AspectRatioContainer::set_alignment_vertical); ClassDB::bind_method(D_METHOD("get_alignment_vertical"), &AspectRatioContainer::get_alignment_vertical); ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "ratio", PROPERTY_HINT_RANGE, "0.001,10.0,0.0001,or_greater"), "set_ratio", "get_ratio"); ADD_PROPERTY(PropertyInfo(Variant::INT, "stretch_mode", PROPERTY_HINT_ENUM, "Width Controls Height,Height Controls Width,Fit,Cover"), "set_stretch_mode", "get_stretch_mode"); ADD_GROUP("Alignment", "alignment_"); ADD_PROPERTY(PropertyInfo(Variant::INT, "alignment_horizontal", PROPERTY_HINT_ENUM, "Begin,Center,End"), "set_alignment_horizontal", "get_alignment_horizontal"); ADD_PROPERTY(PropertyInfo(Variant::INT, "alignment_vertical", PROPERTY_HINT_ENUM, "Begin,Center,End"), "set_alignment_vertical", "get_alignment_vertical"); BIND_ENUM_CONSTANT(STRETCH_WIDTH_CONTROLS_HEIGHT); BIND_ENUM_CONSTANT(STRETCH_HEIGHT_CONTROLS_WIDTH); BIND_ENUM_CONSTANT(STRETCH_FIT); BIND_ENUM_CONSTANT(STRETCH_COVER); BIND_ENUM_CONSTANT(ALIGNMENT_BEGIN); BIND_ENUM_CONSTANT(ALIGNMENT_CENTER); BIND_ENUM_CONSTANT(ALIGNMENT_END); }