ladybird/Applications/QuickShow/main.cpp

/*
 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "QSWidget.h"
#include <LibGUI/GAction.h>
#include <LibGUI/GApplication.h>
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GLabel.h>
#include <LibGUI/GMenu.h>
#include <LibGUI/GMenuBar.h>
#include <LibGUI/GWindow.h>
#include <stdio.h>

int main(int argc, char** argv)
{
    if (pledge("stdio shared_buffer accept rpath unix cpath fattr", nullptr) < 0) {
        perror("pledge");
        return 1;
    }

    GUI::Application app(argc, argv);

    if (pledge("stdio shared_buffer accept rpath", nullptr) < 0) {
        perror("pledge");
        return 1;
    }

    auto menubar = make<GUI::MenuBar>();

    auto app_menu = GUI::Menu::construct("QuickShow");
    app_menu->add_action(GUI::CommonActions::make_quit_action([](auto&) {
        GUI::Application::the().quit(0);
        return;
    }));
    menubar->add_menu(move(app_menu));

    auto file_menu = GUI::Menu::construct("File");
    menubar->add_menu(move(file_menu));

    auto help_menu = GUI::Menu::construct("Help");
    help_menu->add_action(GUI::Action::create("About", [](const GUI::Action&) {
        dbgprintf("FIXME: Implement Help/About\n");
    }));
    menubar->add_menu(move(help_menu));

    app.set_menubar(move(menubar));

#if 0
    if (argc != 2) {
        printf("usage: qs <image-file>\n");
        return 0;
    }
#endif

    const char* path = "/res/wallpapers/sunset-retro.png";
    if (argc > 1)
        path = argv[1];

    auto bitmap = Gfx::Bitmap::load_from_file(path);
    if (!bitmap) {
        fprintf(stderr, "Failed to load %s\n", path);
        return 1;
    }

    auto window = GUI::Window::construct();
    auto widget = QSWidget::construct();
    widget->set_path(path);
    widget->set_bitmap(*bitmap);

    auto update_window_title = [&](int scale) {
        window->set_title(String::format("QuickShow: %s %s %d%%", widget->path().characters(), widget->bitmap()->size().to_string().characters(), scale));
    };

    window->set_double_buffering_enabled(true);
    update_window_title(100);
    window->set_rect(200, 200, bitmap->width(), bitmap->height());

    widget->on_scale_change = [&](int scale) {
        update_window_title(scale);
    };
    window->set_main_widget(widget);

    window->show();

    bitmap = nullptr;
    return app.exec();
}