CharacterMap: Add new Character Map application :^)

2025-07-25 03:37:34 +00:00 · 2022-01-10 15:59:42 +00:00 · 2022-01-10 15:59:42 +00:00 · 2327ea8970
commit 2327ea8970
parent 1d79e8cb0f
7 changed files with 278 additions and 0 deletions
--- a/Userland/Applications/CharacterMap/main.cpp
+++ b/Userland/Applications/CharacterMap/main.cpp
@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include "CharacterMapWidget.h"
+#include <LibConfig/Client.h>
+#include <LibCore/ArgsParser.h>
+#include <LibCore/System.h>
+#include <LibGUI/Application.h>
+#include <LibGUI/Icon.h>
+#include <LibGUI/Window.h>
+#include <LibGfx/FontDatabase.h>
+#include <LibMain/Main.h>
+#include <LibUnicode/CharacterTypes.h>
+
+static void search_and_print_results(String const& query)
+{
+    outln("Searching for '{}'", query);
+    String uppercase_query = query.to_uppercase();
+    StringView uppercase_query_view = uppercase_query.view();
+    // FIXME: At time of writing there are 144,697 code points in Unicode. I've added some breathing room,
+    //        but ideally this would be defined in LibUnicode somewhere.
+    constexpr u32 unicode_character_count = 150000;
+    // FIXME: There's probably a better way to do this than just looping, but it still only takes ~150ms to run for me!
+    u32 result_count = 0;
+    for (u32 i = 1; i < unicode_character_count; ++i) {
+        if (auto maybe_display_name = Unicode::code_point_display_name(i); maybe_display_name.has_value()) {
+            auto& display_name = maybe_display_name.value();
+            // FIXME: This should be a case-sensitive search, since we already converted the query to uppercase
+            //        and the unicode names are all in uppercase. But, that makes it run slower!
+            //        Sensitive: ~175ms, Insensitive: ~140ms
+            if (display_name.contains(uppercase_query_view, AK::CaseSensitivity::CaseInsensitive)) {
+                StringBuilder builder;
+                builder.append_code_point(i);
+                builder.append(" - ");
+                builder.append(display_name);
+                outln(builder.string_view());
+                result_count++;
+            }
+        }
+    }
+
+    if (result_count == 0)
+        outln("No results found.");
+    else if (result_count == 1)
+        outln("1 result found.");
+    else
+        outln("{} results found.", result_count);
+}
+
+ErrorOr<int> serenity_main(Main::Arguments arguments)
+{
+    TRY(Core::System::pledge("stdio recvfd sendfd rpath unix"));
+
+    auto app = TRY(GUI::Application::try_create(arguments));
+    Config::pledge_domains("CharacterMap");
+
+    TRY(Core::System::pledge("stdio recvfd sendfd rpath"));
+    TRY(Core::System::unveil("/res", "r"));
+    TRY(Core::System::unveil(nullptr, nullptr));
+
+    String query;
+    Core::ArgsParser args_parser;
+    args_parser.add_option(query, "Search character names using this query, and print them as a list.", "search", 's', "query");
+    args_parser.parse(arguments);
+
+    if (!query.is_empty()) {
+        search_and_print_results(query);
+        return 0;
+    }
+
+    auto app_icon = TRY(GUI::Icon::try_create_default_icon("app-keyboard-settings"));
+    auto window = TRY(GUI::Window::try_create());
+    window->set_title("Character Map");
+    window->set_icon(app_icon.bitmap_for_size(16));
+    window->resize(400, 400);
+
+    auto character_map_widget = TRY(window->try_set_main_widget<CharacterMapWidget>());
+    character_map_widget->initialize_menubar(*window);
+
+    auto font_query = Config::read_string("CharacterMap", "History", "Font", Gfx::FontDatabase::the().default_font_query());
+    character_map_widget->set_font(Gfx::FontDatabase::the().get_by_name(font_query));
+
+    window->show();
+    return app->exec();
+}