229 lines
7.8 KiB
C++
229 lines
7.8 KiB
C++
/*************************************************************************/
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/* texture_rect.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "texture_rect.h"
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#include "core/core_string_names.h"
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#include "servers/rendering_server.h"
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void TextureRect::_notification(int p_what) {
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if (p_what == NOTIFICATION_DRAW) {
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if (texture.is_null()) {
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return;
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}
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Size2 size;
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Point2 offset;
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Rect2 region;
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bool tile = false;
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switch (stretch_mode) {
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case STRETCH_SCALE_ON_EXPAND: {
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size = expand ? get_size() : texture->get_size();
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} break;
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case STRETCH_SCALE: {
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size = get_size();
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} break;
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case STRETCH_TILE: {
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size = get_size();
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tile = true;
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} break;
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case STRETCH_KEEP: {
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size = texture->get_size();
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} break;
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case STRETCH_KEEP_CENTERED: {
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offset = (get_size() - texture->get_size()) / 2;
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size = texture->get_size();
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} break;
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case STRETCH_KEEP_ASPECT_CENTERED:
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case STRETCH_KEEP_ASPECT: {
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size = get_size();
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int tex_width = texture->get_width() * size.height / texture->get_height();
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int tex_height = size.height;
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if (tex_width > size.width) {
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tex_width = size.width;
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tex_height = texture->get_height() * tex_width / texture->get_width();
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}
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if (stretch_mode == STRETCH_KEEP_ASPECT_CENTERED) {
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offset.x += (size.width - tex_width) / 2;
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offset.y += (size.height - tex_height) / 2;
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}
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size.width = tex_width;
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size.height = tex_height;
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} break;
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case STRETCH_KEEP_ASPECT_COVERED: {
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size = get_size();
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Size2 tex_size = texture->get_size();
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Size2 scale_size(size.width / tex_size.width, size.height / tex_size.height);
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float scale = scale_size.width > scale_size.height ? scale_size.width : scale_size.height;
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Size2 scaled_tex_size = tex_size * scale;
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region.position = ((scaled_tex_size - size) / scale).abs() / 2.0f;
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region.size = size / scale;
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} break;
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}
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Ref<AtlasTexture> p_atlas = texture;
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if (p_atlas.is_valid() && region.has_no_area()) {
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Size2 scale_size(size.width / texture->get_width(), size.height / texture->get_height());
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offset.width += hflip ? p_atlas->get_margin().get_position().width * scale_size.width * 2 : 0;
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offset.height += vflip ? p_atlas->get_margin().get_position().height * scale_size.height * 2 : 0;
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}
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size.width *= hflip ? -1.0f : 1.0f;
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size.height *= vflip ? -1.0f : 1.0f;
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if (region.has_no_area()) {
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draw_texture_rect(texture, Rect2(offset, size), tile);
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} else {
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draw_texture_rect_region(texture, Rect2(offset, size), region);
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}
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}
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}
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Size2 TextureRect::get_minimum_size() const {
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if (!expand && !texture.is_null()) {
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return texture->get_size();
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} else {
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return Size2();
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}
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}
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void TextureRect::_bind_methods() {
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ClassDB::bind_method(D_METHOD("set_texture", "texture"), &TextureRect::set_texture);
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ClassDB::bind_method(D_METHOD("get_texture"), &TextureRect::get_texture);
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ClassDB::bind_method(D_METHOD("set_expand", "enable"), &TextureRect::set_expand);
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ClassDB::bind_method(D_METHOD("has_expand"), &TextureRect::has_expand);
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ClassDB::bind_method(D_METHOD("set_flip_h", "enable"), &TextureRect::set_flip_h);
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ClassDB::bind_method(D_METHOD("is_flipped_h"), &TextureRect::is_flipped_h);
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ClassDB::bind_method(D_METHOD("set_flip_v", "enable"), &TextureRect::set_flip_v);
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ClassDB::bind_method(D_METHOD("is_flipped_v"), &TextureRect::is_flipped_v);
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ClassDB::bind_method(D_METHOD("set_stretch_mode", "stretch_mode"), &TextureRect::set_stretch_mode);
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ClassDB::bind_method(D_METHOD("get_stretch_mode"), &TextureRect::get_stretch_mode);
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D"), "set_texture", "get_texture");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "expand"), "set_expand", "has_expand");
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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");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flip_h"), "set_flip_h", "is_flipped_h");
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ADD_PROPERTY(PropertyInfo(Variant::BOOL, "flip_v"), "set_flip_v", "is_flipped_v");
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BIND_ENUM_CONSTANT(STRETCH_SCALE_ON_EXPAND);
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BIND_ENUM_CONSTANT(STRETCH_SCALE);
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BIND_ENUM_CONSTANT(STRETCH_TILE);
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BIND_ENUM_CONSTANT(STRETCH_KEEP);
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BIND_ENUM_CONSTANT(STRETCH_KEEP_CENTERED);
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BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT);
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BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT_CENTERED);
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BIND_ENUM_CONSTANT(STRETCH_KEEP_ASPECT_COVERED);
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}
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void TextureRect::_texture_changed() {
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if (texture.is_valid()) {
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update();
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minimum_size_changed();
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}
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}
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void TextureRect::set_texture(const Ref<Texture2D> &p_tex) {
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if (p_tex == texture) {
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return;
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}
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if (texture.is_valid()) {
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texture->disconnect(CoreStringNames::get_singleton()->changed, callable_mp(this, &TextureRect::_texture_changed));
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}
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texture = p_tex;
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if (texture.is_valid()) {
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texture->connect(CoreStringNames::get_singleton()->changed, callable_mp(this, &TextureRect::_texture_changed));
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}
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update();
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minimum_size_changed();
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}
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Ref<Texture2D> TextureRect::get_texture() const {
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return texture;
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}
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void TextureRect::set_expand(bool p_expand) {
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expand = p_expand;
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update();
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minimum_size_changed();
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}
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bool TextureRect::has_expand() const {
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return expand;
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}
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void TextureRect::set_stretch_mode(StretchMode p_mode) {
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stretch_mode = p_mode;
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update();
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}
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TextureRect::StretchMode TextureRect::get_stretch_mode() const {
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return stretch_mode;
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}
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void TextureRect::set_flip_h(bool p_flip) {
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hflip = p_flip;
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update();
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}
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bool TextureRect::is_flipped_h() const {
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return hflip;
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}
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void TextureRect::set_flip_v(bool p_flip) {
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vflip = p_flip;
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update();
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}
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bool TextureRect::is_flipped_v() const {
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return vflip;
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}
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TextureRect::TextureRect() {
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expand = false;
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hflip = false;
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vflip = false;
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set_mouse_filter(MOUSE_FILTER_PASS);
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stretch_mode = STRETCH_SCALE_ON_EXPAND;
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}
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TextureRect::~TextureRect() {
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}
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