1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
/*
* Copyright (c) 2020-2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibCore/System.h>
#include <LibGUI/Application.h>
#include <LibGUI/Event.h>
#include <LibGUI/Icon.h>
#include <LibGUI/Painter.h>
#include <LibGUI/Widget.h>
#include <LibGUI/Window.h>
#include <LibGfx/Bitmap.h>
#include <LibMain/Main.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
class Screensaver final : public GUI::Widget {
C_OBJECT(Screensaver)
public:
virtual ~Screensaver() override = default;
private:
Screensaver(int width = 64, int height = 48, int interval = 10000);
RefPtr<Gfx::Bitmap> m_bitmap;
Gfx::IntPoint m_mouse_origin;
void draw();
virtual void paint_event(GUI::PaintEvent&) override;
virtual void timer_event(Core::TimerEvent&) override;
virtual void keydown_event(GUI::KeyEvent&) override;
virtual void mousedown_event(GUI::MouseEvent& event) override;
virtual void mousemove_event(GUI::MouseEvent& event) override;
};
Screensaver::Screensaver(int width, int height, int interval)
{
m_bitmap = Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, { width, height }).release_value_but_fixme_should_propagate_errors();
srand(time(nullptr));
stop_timer();
start_timer(interval);
draw();
}
void Screensaver::mousemove_event(GUI::MouseEvent& event)
{
constexpr float max_distance_move = 10;
if (m_mouse_origin.is_null()) {
m_mouse_origin = event.position();
} else if (event.position().distance_from(m_mouse_origin) > max_distance_move) {
GUI::Application::the()->quit();
}
}
void Screensaver::mousedown_event(GUI::MouseEvent&)
{
GUI::Application::the()->quit();
}
void Screensaver::keydown_event(GUI::KeyEvent&)
{
GUI::Application::the()->quit();
}
void Screensaver::paint_event(GUI::PaintEvent& event)
{
GUI::Painter painter(*this);
painter.add_clip_rect(event.rect());
painter.draw_scaled_bitmap(rect(), *m_bitmap, m_bitmap->rect());
}
void Screensaver::timer_event(Core::TimerEvent&)
{
draw();
update();
}
void Screensaver::draw()
{
const Color colors[] {
Color::Blue,
Color::Cyan,
Color::Green,
Color::Magenta,
Color::Red,
Color::Yellow,
};
const Orientation orientations[] {
Gfx::Orientation::Horizontal,
Gfx::Orientation::Vertical
};
int start_color_index = 0;
int end_color_index = 0;
while (start_color_index == end_color_index) {
start_color_index = rand() % (sizeof(colors) / sizeof(colors[0]));
end_color_index = rand() % (sizeof(colors) / sizeof(colors[0]));
}
GUI::Painter painter(*m_bitmap);
painter.fill_rect_with_gradient(
orientations[rand() % (sizeof(orientations) / sizeof(orientations[0]))],
m_bitmap->rect(),
colors[start_color_index],
colors[end_color_index]);
}
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
TRY(Core::System::pledge("stdio rpath recvfd sendfd unix"));
auto app = TRY(GUI::Application::try_create(arguments));
TRY(Core::System::pledge("stdio rpath recvfd sendfd"));
TRY(Core::System::unveil("/res", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
auto app_icon = GUI::Icon::default_icon("app-screensaver"sv);
auto window = TRY(GUI::Window::try_create());
window->set_double_buffering_enabled(false);
window->set_title("Screensaver");
window->set_resizable(false);
window->set_frameless(true);
window->set_fullscreen(true);
window->set_minimizable(false);
window->set_icon(app_icon.bitmap_for_size(16));
auto screensaver_window = TRY(window->try_set_main_widget<Screensaver>(64, 48, 10000));
screensaver_window->set_fill_with_background_color(false);
screensaver_window->set_override_cursor(Gfx::StandardCursor::Hidden);
screensaver_window->update();
window->show();
window->move_to_front();
window->set_cursor(Gfx::StandardCursor::Hidden);
window->update();
return app->exec();
}
|
