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ThemeEditor: Implement a way to simulate color blindness in preview

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Implement a mechanism that allows us to alter colors so that they
mimic those a colorblind person would see. From the color we can then
alter the colors for the whole preview so we can simulate everything
in the theme including icons/decorations.

This filter is also available as a Filter in LibGfx so it can be
reused in multiple other places.

The color simulation algorithm is based on this one
https://github.com/MaPePeR/jsColorblindSimulator publicly available.
This commit is contained in:
TheGrizzlyDev 2021-12-17 22:59:01 +00:00 • committed by Linus Groh
parent 1c05d39abc
commit ebaf211260
7 changed files with 289 additions and 0 deletions
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64
Userland/Applications/ThemeEditor/main.cpp
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@ -2,6 +2,7 @@
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Jakob-Niklas See <git@nwex.de>
* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2021, Antonio Di Stefano <tonio9681@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -12,6 +13,7 @@
#include <LibCore/ConfigFile.h>
#include <LibCore/System.h>
#include <LibFileSystemAccessClient/Client.h>
#include <LibGUI/ActionGroup.h>
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
@ -26,6 +28,7 @@
#include <LibGUI/SpinBox.h>
#include <LibGUI/TextBox.h>
#include <LibGUI/Window.h>
#include <LibGfx/Filters/ColorBlindnessFilter.h>
#include <LibMain/Main.h>
#include <unistd.h>
@ -316,6 +319,67 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
TRY(file_menu->try_add_separator());
TRY(file_menu->try_add_action(GUI::CommonActions::make_quit_action([&](auto&) { app->quit(); })));
auto accessibility_menu = TRY(window->try_add_menu("&Accessibility"));
auto default_accessibility_action = GUI::Action::create_checkable("Default - non-impaired", { Mod_AltGr, Key_1 }, [&](auto&) {
preview_widget.set_color_filter(nullptr);
});
default_accessibility_action->set_checked(true);
auto pratanopia_accessibility_action = GUI::Action::create_checkable("Protanopia", { Mod_AltGr, Key_2 }, [&](auto&) {
preview_widget.set_color_filter(Gfx::ColorBlindnessFilter::create_protanopia());
});
auto pratanomaly_accessibility_action = GUI::Action::create_checkable("Protanomaly", { Mod_AltGr, Key_3 }, [&](auto&) {
preview_widget.set_color_filter(Gfx::ColorBlindnessFilter::create_protanomaly());
});
auto tritanopia_accessibility_action = GUI::Action::create_checkable("Tritanopia", { Mod_AltGr, Key_4 }, [&](auto&) {
preview_widget.set_color_filter(Gfx::ColorBlindnessFilter::create_tritanopia());
});
auto tritanomaly_accessibility_action = GUI::Action::create_checkable("Tritanomaly", { Mod_AltGr, Key_5 }, [&](auto&) {
preview_widget.set_color_filter(Gfx::ColorBlindnessFilter::create_tritanomaly());
});
auto deuteranopia_accessibility_action = GUI::Action::create_checkable("Deuteranopia", { Mod_AltGr, Key_6 }, [&](auto&) {
preview_widget.set_color_filter(Gfx::ColorBlindnessFilter::create_deuteranopia());
});
auto deuteranomaly_accessibility_action = GUI::Action::create_checkable("Deuteranomaly", { Mod_AltGr, Key_7 }, [&](auto&) {
preview_widget.set_color_filter(Gfx::ColorBlindnessFilter::create_deuteranomaly());
});
auto achromatopsia_accessibility_action = GUI::Action::create_checkable("Achromatopsia", { Mod_AltGr, Key_8 }, [&](auto&) {
preview_widget.set_color_filter(Gfx::ColorBlindnessFilter::create_achromatopsia());
});
auto achromatomaly_accessibility_action = GUI::Action::create_checkable("Achromatomaly", { Mod_AltGr, Key_9 }, [&](auto&) {
preview_widget.set_color_filter(Gfx::ColorBlindnessFilter::create_achromatomaly());
});
auto preview_type_action_group = make<GUI::ActionGroup>();
preview_type_action_group->set_exclusive(true);
preview_type_action_group->add_action(*default_accessibility_action);
preview_type_action_group->add_action(*pratanopia_accessibility_action);
preview_type_action_group->add_action(*pratanomaly_accessibility_action);
preview_type_action_group->add_action(*tritanopia_accessibility_action);
preview_type_action_group->add_action(*tritanomaly_accessibility_action);
preview_type_action_group->add_action(*deuteranopia_accessibility_action);
preview_type_action_group->add_action(*deuteranomaly_accessibility_action);
preview_type_action_group->add_action(*achromatopsia_accessibility_action);
preview_type_action_group->add_action(*achromatomaly_accessibility_action);
TRY(accessibility_menu->try_add_action(default_accessibility_action));
TRY(accessibility_menu->try_add_action(pratanopia_accessibility_action));
TRY(accessibility_menu->try_add_action(pratanomaly_accessibility_action));
TRY(accessibility_menu->try_add_action(tritanopia_accessibility_action));
TRY(accessibility_menu->try_add_action(tritanomaly_accessibility_action));
TRY(accessibility_menu->try_add_action(deuteranopia_accessibility_action));
TRY(accessibility_menu->try_add_action(deuteranomaly_accessibility_action));
TRY(accessibility_menu->try_add_action(achromatopsia_accessibility_action));
TRY(accessibility_menu->try_add_action(achromatomaly_accessibility_action));
auto help_menu = TRY(window->try_add_menu("&Help"));
TRY(help_menu->try_add_action(GUI::CommonActions::make_about_action("Theme Editor", app_icon, window)));