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Demos: Move to Userland/Demos/
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170
Userland/Demos/Screensaver/Screensaver.cpp
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170
Userland/Demos/Screensaver/Screensaver.cpp
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/*
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* Copyright (c) 2020, the SerenityOS developers.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibGUI/Application.h>
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#include <LibGUI/Event.h>
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#include <LibGUI/Icon.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/Widget.h>
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#include <LibGUI/Window.h>
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#include <LibGfx/Bitmap.h>
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#include <stdio.h>
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#include <time.h>
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class Screensaver final : public GUI::Widget {
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C_OBJECT(Screensaver)
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public:
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virtual ~Screensaver() override;
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private:
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Screensaver(int width = 64, int height = 48, int interval = 10000);
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RefPtr<Gfx::Bitmap> m_bitmap;
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void draw();
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virtual void paint_event(GUI::PaintEvent&) override;
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virtual void timer_event(Core::TimerEvent&) override;
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virtual void keydown_event(GUI::KeyEvent&) override;
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virtual void mousedown_event(GUI::MouseEvent& event) override;
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virtual void mousemove_event(GUI::MouseEvent& event) override;
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};
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Screensaver::Screensaver(int width, int height, int interval)
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{
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m_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, { width, height });
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srand(time(nullptr));
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stop_timer();
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start_timer(interval);
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draw();
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}
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Screensaver::~Screensaver()
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{
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}
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void Screensaver::mousemove_event(GUI::MouseEvent&)
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{
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::exit(0);
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}
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void Screensaver::mousedown_event(GUI::MouseEvent&)
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{
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::exit(0);
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}
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void Screensaver::keydown_event(GUI::KeyEvent&)
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{
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::exit(0);
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}
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void Screensaver::paint_event(GUI::PaintEvent& event)
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{
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GUI::Painter painter(*this);
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painter.draw_scaled_bitmap(event.rect(), *m_bitmap, m_bitmap->rect());
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}
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void Screensaver::timer_event(Core::TimerEvent&)
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{
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draw();
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update();
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}
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void Screensaver::draw()
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{
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const Color colors[] {
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Color::Blue,
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Color::Cyan,
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Color::Green,
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Color::Magenta,
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Color::Red,
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Color::Yellow,
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};
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const Orientation orientations[] {
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Gfx::Orientation::Horizontal,
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Gfx::Orientation::Vertical
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};
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int start_color_index = 0;
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int end_color_index = 0;
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while (start_color_index == end_color_index) {
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start_color_index = rand() % (sizeof(colors) / sizeof(colors[0]));
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end_color_index = rand() % (sizeof(colors) / sizeof(colors[0]));
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}
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GUI::Painter painter(*m_bitmap);
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painter.fill_rect_with_gradient(
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orientations[rand() % (sizeof(orientations) / sizeof(orientations[0]))],
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m_bitmap->rect(),
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colors[start_color_index],
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colors[end_color_index]);
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}
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int main(int argc, char** argv)
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{
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if (pledge("stdio rpath wpath cpath shared_buffer cpath unix fattr", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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auto app = GUI::Application::construct(argc, argv);
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if (pledge("stdio rpath shared_buffer", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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if (unveil("/res", "r") < 0) {
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perror("unveil");
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return 1;
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}
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if (unveil(nullptr, nullptr) < 0) {
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perror("unveil");
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return 1;
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}
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auto app_icon = GUI::Icon::default_icon("app-screensaver");
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auto window = GUI::Window::construct();
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window->set_double_buffering_enabled(false);
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window->set_title("Screensaver");
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window->set_resizable(false);
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window->set_frameless(true);
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window->set_fullscreen(true);
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window->set_minimizable(false);
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window->set_icon(app_icon.bitmap_for_size(16));
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auto& screensaver_window = window->set_main_widget<Screensaver>(64, 48, 10000);
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screensaver_window.set_fill_with_background_color(false);
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screensaver_window.set_override_cursor(Gfx::StandardCursor::Hidden);
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screensaver_window.update();
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window->show();
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window->move_to_front();
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window->set_cursor(Gfx::StandardCursor::Hidden);
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window->update();
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return app->exec();
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}
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