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https://github.com/godotengine/godot
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238 lines
11 KiB
C++
238 lines
11 KiB
C++
/*************************************************************************/
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/* theme_db.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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 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 "theme_db.h"
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#include "core/config/project_settings.h"
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#include "core/io/resource_loader.h"
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#include "scene/resources/default_theme/default_theme.h"
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#include "scene/resources/font.h"
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#include "scene/resources/style_box.h"
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#include "scene/resources/texture.h"
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#include "scene/resources/theme.h"
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#include "servers/text_server.h"
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// Default engine theme creation and configuration.
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void ThemeDB::initialize_theme() {
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// Allow creating the default theme at a different scale to suit higher/lower base resolutions.
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float default_theme_scale = GLOBAL_DEF("gui/theme/default_theme_scale", 1.0);
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ProjectSettings::get_singleton()->set_custom_property_info("gui/theme/default_theme_scale", PropertyInfo(Variant::FLOAT, "gui/theme/default_theme_scale", PROPERTY_HINT_RANGE, "0.5,8,0.01", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED));
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String theme_path = GLOBAL_DEF_RST("gui/theme/custom", "");
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ProjectSettings::get_singleton()->set_custom_property_info("gui/theme/custom", PropertyInfo(Variant::STRING, "gui/theme/custom", PROPERTY_HINT_FILE, "*.tres,*.res,*.theme", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED));
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String font_path = GLOBAL_DEF_RST("gui/theme/custom_font", "");
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ProjectSettings::get_singleton()->set_custom_property_info("gui/theme/custom_font", PropertyInfo(Variant::STRING, "gui/theme/custom_font", PROPERTY_HINT_FILE, "*.tres,*.res", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED));
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TextServer::FontAntialiasing font_antialiasing = (TextServer::FontAntialiasing)(int)GLOBAL_DEF_RST("gui/theme/default_font_antialiasing", 1);
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ProjectSettings::get_singleton()->set_custom_property_info("gui/theme/default_font_antialiasing", PropertyInfo(Variant::INT, "gui/theme/default_font_antialiasing", PROPERTY_HINT_ENUM, "None,Grayscale,LCD sub-pixel", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED));
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TextServer::Hinting font_hinting = (TextServer::Hinting)(int)GLOBAL_DEF_RST("gui/theme/default_font_hinting", TextServer::HINTING_LIGHT);
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ProjectSettings::get_singleton()->set_custom_property_info("gui/theme/default_font_hinting", PropertyInfo(Variant::INT, "gui/theme/default_font_hinting", PROPERTY_HINT_ENUM, "None,Light,Normal", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED));
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TextServer::SubpixelPositioning font_subpixel_positioning = (TextServer::SubpixelPositioning)(int)GLOBAL_DEF_RST("gui/theme/default_font_subpixel_positioning", TextServer::SUBPIXEL_POSITIONING_AUTO);
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ProjectSettings::get_singleton()->set_custom_property_info("gui/theme/default_font_subpixel_positioning", PropertyInfo(Variant::INT, "gui/theme/default_font_subpixel_positioning", PROPERTY_HINT_ENUM, "Disabled,Auto,One half of a pixel,One quarter of a pixel", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_RESTART_IF_CHANGED));
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const bool font_msdf = GLOBAL_DEF_RST("gui/theme/default_font_multichannel_signed_distance_field", false);
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const bool font_generate_mipmaps = GLOBAL_DEF_RST("gui/theme/default_font_generate_mipmaps", false);
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GLOBAL_DEF_RST("gui/theme/lcd_subpixel_layout", 1);
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ProjectSettings::get_singleton()->set_custom_property_info("gui/theme/lcd_subpixel_layout", PropertyInfo(Variant::INT, "gui/theme/lcd_subpixel_layout", PROPERTY_HINT_ENUM, "Disabled,Horizontal RGB,Horizontal BGR,Vertical RGB,Vertical BGR"));
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ProjectSettings::get_singleton()->set_restart_if_changed("gui/theme/lcd_subpixel_layout", false);
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Ref<Font> font;
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if (!font_path.is_empty()) {
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font = ResourceLoader::load(font_path);
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if (!font.is_valid()) {
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ERR_PRINT("Error loading custom font '" + font_path + "'");
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}
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}
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// Always make the default theme to avoid invalid default font/icon/style in the given theme.
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if (RenderingServer::get_singleton()) {
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make_default_theme(default_theme_scale, font, font_subpixel_positioning, font_hinting, font_antialiasing, font_msdf, font_generate_mipmaps);
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}
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if (!theme_path.is_empty()) {
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Ref<Theme> theme = ResourceLoader::load(theme_path);
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if (theme.is_valid()) {
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set_project_theme(theme);
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if (font.is_valid()) {
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set_fallback_font(font);
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}
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} else {
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ERR_PRINT("Error loading custom theme '" + theme_path + "'");
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}
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}
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}
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void ThemeDB::initialize_theme_noproject() {
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if (RenderingServer::get_singleton()) {
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make_default_theme(1.0, Ref<Font>());
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}
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}
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// Universal fallback Theme resources.
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void ThemeDB::set_default_theme(const Ref<Theme> &p_default) {
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default_theme = p_default;
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}
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Ref<Theme> ThemeDB::get_default_theme() {
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return default_theme;
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}
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void ThemeDB::set_project_theme(const Ref<Theme> &p_project_default) {
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project_theme = p_project_default;
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}
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Ref<Theme> ThemeDB::get_project_theme() {
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return project_theme;
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}
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// Universal fallback values for theme item types.
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void ThemeDB::set_fallback_base_scale(float p_base_scale) {
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if (fallback_base_scale == p_base_scale) {
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return;
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}
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fallback_base_scale = p_base_scale;
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emit_signal(SNAME("fallback_changed"));
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}
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float ThemeDB::get_fallback_base_scale() {
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return fallback_base_scale;
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}
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void ThemeDB::set_fallback_font(const Ref<Font> &p_font) {
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if (fallback_font == p_font) {
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return;
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}
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fallback_font = p_font;
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emit_signal(SNAME("fallback_changed"));
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}
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Ref<Font> ThemeDB::get_fallback_font() {
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return fallback_font;
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}
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void ThemeDB::set_fallback_font_size(int p_font_size) {
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if (fallback_font_size == p_font_size) {
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return;
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}
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fallback_font_size = p_font_size;
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emit_signal(SNAME("fallback_changed"));
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}
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int ThemeDB::get_fallback_font_size() {
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return fallback_font_size;
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}
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void ThemeDB::set_fallback_icon(const Ref<Texture2D> &p_icon) {
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if (fallback_icon == p_icon) {
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return;
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}
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fallback_icon = p_icon;
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emit_signal(SNAME("fallback_changed"));
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}
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Ref<Texture2D> ThemeDB::get_fallback_icon() {
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return fallback_icon;
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}
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void ThemeDB::set_fallback_stylebox(const Ref<StyleBox> &p_stylebox) {
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if (fallback_stylebox == p_stylebox) {
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return;
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}
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fallback_stylebox = p_stylebox;
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emit_signal(SNAME("fallback_changed"));
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}
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Ref<StyleBox> ThemeDB::get_fallback_stylebox() {
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return fallback_stylebox;
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}
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// Object methods.
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void ThemeDB::_bind_methods() {
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ClassDB::bind_method(D_METHOD("get_default_theme"), &ThemeDB::get_default_theme);
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ClassDB::bind_method(D_METHOD("get_project_theme"), &ThemeDB::get_project_theme);
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ClassDB::bind_method(D_METHOD("set_fallback_base_scale", "base_scale"), &ThemeDB::set_fallback_base_scale);
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ClassDB::bind_method(D_METHOD("get_fallback_base_scale"), &ThemeDB::get_fallback_base_scale);
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ClassDB::bind_method(D_METHOD("set_fallback_font", "font"), &ThemeDB::set_fallback_font);
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ClassDB::bind_method(D_METHOD("get_fallback_font"), &ThemeDB::get_fallback_font);
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ClassDB::bind_method(D_METHOD("set_fallback_font_size", "font_size"), &ThemeDB::set_fallback_font_size);
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ClassDB::bind_method(D_METHOD("get_fallback_font_size"), &ThemeDB::get_fallback_font_size);
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ClassDB::bind_method(D_METHOD("set_fallback_icon", "icon"), &ThemeDB::set_fallback_icon);
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ClassDB::bind_method(D_METHOD("get_fallback_icon"), &ThemeDB::get_fallback_icon);
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ClassDB::bind_method(D_METHOD("set_fallback_stylebox", "stylebox"), &ThemeDB::set_fallback_stylebox);
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ClassDB::bind_method(D_METHOD("get_fallback_stylebox"), &ThemeDB::get_fallback_stylebox);
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ADD_GROUP("Fallback values", "fallback_");
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ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "fallback_base_scale", PROPERTY_HINT_RANGE, "0.0,2.0,0.01,or_greater"), "set_fallback_base_scale", "get_fallback_base_scale");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "fallback_font", PROPERTY_HINT_RESOURCE_TYPE, "Font", PROPERTY_USAGE_NONE), "set_fallback_font", "get_fallback_font");
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ADD_PROPERTY(PropertyInfo(Variant::INT, "fallback_font_size", PROPERTY_HINT_RANGE, "0,256,1,or_greater,suffix:px"), "set_fallback_font_size", "get_fallback_font_size");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "fallback_icon", PROPERTY_HINT_RESOURCE_TYPE, "Texture2D", PROPERTY_USAGE_NONE), "set_fallback_icon", "get_fallback_icon");
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ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "fallback_stylebox", PROPERTY_HINT_RESOURCE_TYPE, "StyleBox", PROPERTY_USAGE_NONE), "set_fallback_stylebox", "get_fallback_stylebox");
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ADD_SIGNAL(MethodInfo("fallback_changed"));
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}
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// Memory management, reference, and initialization
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ThemeDB *ThemeDB::singleton = nullptr;
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ThemeDB *ThemeDB::get_singleton() {
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return singleton;
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}
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ThemeDB::ThemeDB() {
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singleton = this;
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// Universal default values, final fallback for every theme.
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fallback_base_scale = 1.0;
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fallback_font_size = 16;
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}
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ThemeDB::~ThemeDB() {
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default_theme.unref();
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project_theme.unref();
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fallback_font.unref();
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fallback_icon.unref();
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fallback_stylebox.unref();
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singleton = nullptr;
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}
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