ladybird/Applications/QuickShow/main.cpp
Andreas Kling 5c06c32df4 LibGfx: Prefer using Gfx::Bitmap::load_from_file instead of load_png()
Code that just wants to open a Gfx::Bitmap from a file should not be
calling the PNG codec directly.
2020-02-06 13:39:17 +01:00

110 lines
3.6 KiB
C++

/*
* 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();
}