diff options
Diffstat (limited to 'scene/gui/aspect_ratio_container.cpp')
| -rw-r--r-- | scene/gui/aspect_ratio_container.cpp | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/scene/gui/aspect_ratio_container.cpp b/scene/gui/aspect_ratio_container.cpp new file mode 100644 index 0000000000..672102bf7a --- /dev/null +++ b/scene/gui/aspect_ratio_container.cpp @@ -0,0 +1,172 @@ +/*************************************************************************/ +/* aspect_ratio_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 "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<Control>(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(AlignMode p_alignment_horizontal) { + alignment_horizontal = p_alignment_horizontal; + queue_sort(); +} + +void AspectRatioContainer::set_alignment_vertical(AlignMode p_alignment_vertical) { + alignment_vertical = p_alignment_vertical; + queue_sort(); +} + +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<Control>(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 ALIGN_BEGIN: { + align_x = 0.0; + } break; + case ALIGN_CENTER: { + align_x = 0.5; + } break; + case ALIGN_END: { + align_x = 1.0; + } break; + } + float align_y = 0.5; + switch (alignment_vertical) { + case ALIGN_BEGIN: { + align_y = 0.0; + } break; + case ALIGN_CENTER: { + align_y = 0.5; + } break; + case ALIGN_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"), "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(ALIGN_BEGIN); + BIND_ENUM_CONSTANT(ALIGN_CENTER); + BIND_ENUM_CONSTANT(ALIGN_END); +} |