/*************************************************************************/ /* texture_rect.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2021 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 "texture_rect.h" #include "core/core_string_names.h" #include "servers/rendering_server.h" void TextureRect::_notification(int p_what) { if (p_what == NOTIFICATION_DRAW) { if (texture.is_null()) { return; } Size2 size; Point2 offset; Rect2 region; bool tile = false; switch (stretch_mode) { case STRETCH_SCALE_ON_EXPAND: { size = expand ? get_size() : texture->get_size(); } break; case STRETCH_SCALE: { size = get_size(); } break; case STRETCH_TILE: { size = get_size(); tile = true; } break; case STRETCH_KEEP: { size = texture->get_size(); } break; case STRETCH_KEEP_CENTERED: { offset = (get_size() - texture->get_size()) / 2; size = texture->get_size(); } break; case STRETCH_KEEP_ASPECT_CENTERED: case STRETCH_KEEP_ASPECT: { size = get_size(); int tex_width = texture->get_width() * size.height / texture->get_height(); int tex_height = size.height; if (tex_width > size.width) { tex_width = size.width; tex_height = texture->get_height() * tex_width / texture->get_width(); } if (stretch_mode == STRETCH_KEEP_ASPECT_CENTERED) { offset.x += (size.width - tex_width) / 2; offset.y += (size.height - tex_height) / 2; } size.width = tex_width; size.height = tex_height; } break; case STRETCH_KEEP_ASPECT_COVERED: { size = get_size(); Size2 tex_size = texture->get_size(); Size2 scale_size(size.width / tex_size.width, size.height / tex_size.height); float scale = scale_size.width > scale_size.height ? scale_size.width : scale_size.height; Size2 scaled_tex_size = tex_size * scale; region.position = ((scaled_tex_size - size) / scale).abs() / 2.0f; region.size = size / scale; } break; } Ref<AtlasTexture> p_atlas = texture; if (p_atlas.is_valid() && region.has_no_area()) { Size2 scale_size(size.width / texture->get_width(), size.height / texture->get_height()); offset.width += hflip ? p_atlas->get_margin().get_position().width * scale_size.width * 2 : 0; offset.height += vflip ? p_atlas->get_margin().get_position().height * scale_size.height * 2 : 0; } size.width *= hflip ? -1.0f : 1.0f; size.height *= vflip ? -1.0f : 1.0f; if (region.has_no_area()) { draw_texture_rect(texture, Rect2(offset, size), tile); } else { draw_texture_rect_region(texture, Rect2(offset, size), region); } } } Size2 TextureRect::get_minimum_size() const { if (!expand && !texture.is_null()) { return texture->get_size(); } else { return Size2(); } } void TextureRect::_bind_methods() { ClassDB::bind_method(D_METHOD("set_texture", "texture"), &TextureRect::set_texture); ClassDB::bind_method(D_METHOD("get_texture"), &TextureRect::get_texture); ClassDB::bind_method(D_METHOD("set_expand", "enable"), &TextureRect::set_expand); ClassDB::bind_method(D_METHOD("has_expand"), &TextureRect::has_expand); ClassDB::bind_method(D_METHOD("set_flip_h", "enable"), &TextureRect::set_flip_h); ClassDB::bind_method(D_METHOD("is_flipped_h"), &TextureRect::is_flipped_h); ClassDB::bind_method(D_METHOD("set_flip_v", "enable"), &TextureRect::set_flip_v); ClassDB::bind_method(D_METHOD("is_flipped_v"), &TextureRect::is_flipped_v); ClassDB::bind_method(D_METHOD("set_stretch_mode", "stretch_mode"), &TextureRect::set_stretch_mode); ClassDB::bind_method(D_METHOD("get_stretch_mode"), &TextureRect::get_stretch_mode); ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture", "get_texture"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "expand"), "set_expand", "has_expand"); ADD_PROPERTY(PropertyInfo(Variant::INT, "stretch_mode", PROPERTY_HINT_ENUM, "Scale On Expand (Compat),Scale,Tile,Keep,Keep Centered,Keep Aspect,Keep Aspect Centered,Keep Aspect Covered"), "set_stretch_mode", "get_stretch_mode"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flip_h"), "set_flip_h", "is_flipped_h"); ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flip_v"), "set_flip_v", "is_flipped_v"); BIND_ENUM_CONSTANT(STRETCH_SCALE_ON_EXPAND); BIND_ENUM_CONSTANT(STRETCH_SCALE); BIND_ENUM_CONSTANT(STRETCH_TILE); BIND_ENUM_CONSTANT(STRETCH_KEEP); BIND_ENUM_CONSTANT(STRETCH_KEEP_CENTERED); BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT); BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT_CENTERED); BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT_COVERED); } void TextureRect::_texture_changed() { if (texture.is_valid()) { update(); minimum_size_changed(); } } void TextureRect::set_texture(const Ref<Texture2D> &p_tex) { if (p_tex == texture) { return; } if (texture.is_valid()) { texture->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &TextureRect::_texture_changed)); } texture = p_tex; if (texture.is_valid()) { texture->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &TextureRect::_texture_changed)); } update(); minimum_size_changed(); } Ref<Texture2D> TextureRect::get_texture() const { return texture; } void TextureRect::set_expand(bool p_expand) { expand = p_expand; update(); minimum_size_changed(); } bool TextureRect::has_expand() const { return expand; } void TextureRect::set_stretch_mode(StretchMode p_mode) { stretch_mode = p_mode; update(); } TextureRect::StretchMode TextureRect::get_stretch_mode() const { return stretch_mode; } void TextureRect::set_flip_h(bool p_flip) { hflip = p_flip; update(); } bool TextureRect::is_flipped_h() const { return hflip; } void TextureRect::set_flip_v(bool p_flip) { vflip = p_flip; update(); } bool TextureRect::is_flipped_v() const { return vflip; } TextureRect::TextureRect() { expand = false; hflip = false; vflip = false; set_mouse_filter(MOUSE_FILTER_PASS); stretch_mode = STRETCH_SCALE_ON_EXPAND; } TextureRect::~TextureRect() { }