ladybird/Userland/Utilities/shot.cpp
Tom f232cb8efe WindowServer: Enable screen capture to span multiple screens
This enables the shot utility to capture all screens or just one, and
enables the Magnifier application to track the mouse cursor across
multiple screens.
2021-06-20 14:57:26 +02:00

77 lines
2.3 KiB
C++

/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Format.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/DateTime.h>
#include <LibCore/File.h>
#include <LibGUI/Application.h>
#include <LibGUI/Clipboard.h>
#include <LibGUI/WindowServerConnection.h>
#include <LibGfx/PNGWriter.h>
#include <unistd.h>
int main(int argc, char** argv)
{
Core::ArgsParser args_parser;
String output_path;
bool output_to_clipboard = false;
int delay = 0;
int screen = -1;
args_parser.add_positional_argument(output_path, "Output filename", "output", Core::ArgsParser::Required::No);
args_parser.add_option(output_to_clipboard, "Output to clipboard", "clipboard", 'c');
args_parser.add_option(delay, "Seconds to wait before taking a screenshot", "delay", 'd', "seconds");
args_parser.add_option(screen, "The index of the screen (default: -1 for all screens)", "screen", 's', "index");
args_parser.parse(argc, argv);
if (output_path.is_empty()) {
output_path = Core::DateTime::now().to_string("screenshot-%Y-%m-%d-%H-%M-%S.png");
}
auto app = GUI::Application::construct(argc, argv);
sleep(delay);
Optional<u32> screen_index;
if (screen >= 0)
screen_index = (u32)screen;
dbgln("getting screenshot...");
auto shared_bitmap = GUI::WindowServerConnection::the().get_screen_bitmap({}, screen_index);
dbgln("got screenshot");
auto* bitmap = shared_bitmap.bitmap();
if (!bitmap) {
warnln("Failed to grab screenshot");
return 1;
}
if (output_to_clipboard) {
GUI::Clipboard::the().set_bitmap(*bitmap);
return 0;
}
auto encoded_bitmap = Gfx::PNGWriter::encode(*bitmap);
if (encoded_bitmap.is_empty()) {
warnln("Failed to encode PNG");
return 1;
}
auto file_or_error = Core::File::open(output_path, Core::OpenMode::ReadWrite);
if (file_or_error.is_error()) {
warnln("Could not open '{}' for writing: {}", output_path, file_or_error.error());
return 1;
}
auto& file = *file_or_error.value();
if (!file.write(encoded_bitmap.data(), encoded_bitmap.size())) {
warnln("Failed to write PNG");
return 1;
}
outln("{}", output_path);
return 0;
}