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aspect_ratio_container.cpp
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/**************************************************************************/
/* aspect_ratio_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 "aspect_ratio_container.h"
#include "scene/gui/texture_rect.h"
Size2 AspectRatioContainer::get_minimum_size() const {
Size2 ms;
for (int i = 0; i < get_child_count(); i++) {
Control *c = as_sortable_control(get_child(i), SortableVisbilityMode::VISIBLE);
if (!c) {
continue;
}
Size2 minsize = c->get_combined_minimum_size();
ms = ms.max(minsize);
}
return ms;
}
void AspectRatioContainer::set_ratio(float p_ratio) {
if (ratio == p_ratio) {
return;
}
ratio = p_ratio;
queue_sort();
}
void AspectRatioContainer::set_stretch_mode(StretchMode p_mode) {
if (stretch_mode == p_mode) {
return;
}
stretch_mode = p_mode;
queue_sort();
}
void AspectRatioContainer::set_alignment_horizontal(AlignmentMode p_alignment_horizontal) {
if (alignment_horizontal == p_alignment_horizontal) {
return;
}
alignment_horizontal = p_alignment_horizontal;
queue_sort();
}
void AspectRatioContainer::set_alignment_vertical(AlignmentMode p_alignment_vertical) {
if (alignment_vertical == p_alignment_vertical) {
return;
}
alignment_vertical = p_alignment_vertical;
queue_sort();
}
Vector<int> AspectRatioContainer::get_allowed_size_flags_horizontal() const {
Vector<int> flags;
flags.append(SIZE_FILL);
flags.append(SIZE_SHRINK_BEGIN);
flags.append(SIZE_SHRINK_CENTER);
flags.append(SIZE_SHRINK_END);
return flags;
}
Vector<int> AspectRatioContainer::get_allowed_size_flags_vertical() const {
Vector<int> 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 = as_sortable_control(get_child(i));
if (!c) {
continue;
}
// Temporary fix for editor crash.
TextureRect *trect = Object::cast_to<TextureRect>(c);
if (trect) {
if (trect->get_expand_mode() == TextureRect::EXPAND_FIT_WIDTH_PROPORTIONAL || trect->get_expand_mode() == TextureRect::EXPAND_FIT_HEIGHT_PROPORTIONAL) {
WARN_PRINT_ONCE("Proportional TextureRect is currently not supported inside AspectRatioContainer");
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 = child_size.max(child_minsize);
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);
}