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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#include <AK/OwnPtr.h>
30#include <AK/RefPtr.h>
31#include <LibCore/Object.h>
32#include <LibGfx/DisjointRectSet.h>
33#include <LibGfx/Forward.h>
34
35namespace WindowServer {
36
37class Cursor;
38
39enum class WallpaperMode {
40 Simple,
41 Tile,
42 Center,
43 Scaled,
44 Unchecked
45};
46
47class Compositor final : public Core::Object {
48 C_OBJECT(Compositor)
49public:
50 static Compositor& the();
51
52 void compose();
53 void invalidate();
54 void invalidate(const Gfx::Rect&);
55
56 bool set_resolution(int desired_width, int desired_height);
57
58 bool set_backgound_color(const String& background_color);
59
60 bool set_wallpaper_mode(const String& mode);
61
62 bool set_wallpaper(const String& path, Function<void(bool)>&& callback);
63 String wallpaper_path() const { return m_wallpaper_path; }
64
65 void invalidate_cursor();
66 Gfx::Rect current_cursor_rect() const;
67
68private:
69 Compositor();
70 void init_bitmaps();
71 void flip_buffers();
72 void flush(const Gfx::Rect&);
73 void draw_cursor();
74 void draw_geometry_label();
75 void draw_menubar();
76 void run_animations();
77 void notify_display_links();
78
79 RefPtr<Core::Timer> m_compose_timer;
80 RefPtr<Core::Timer> m_immediate_compose_timer;
81 bool m_flash_flush { false };
82 bool m_buffers_are_flipped { false };
83 bool m_screen_can_set_buffer { false };
84
85 RefPtr<Gfx::Bitmap> m_front_bitmap;
86 RefPtr<Gfx::Bitmap> m_back_bitmap;
87 OwnPtr<Gfx::Painter> m_back_painter;
88 OwnPtr<Gfx::Painter> m_front_painter;
89
90 Gfx::DisjointRectSet m_dirty_rects;
91
92 Gfx::Rect m_last_cursor_rect;
93 Gfx::Rect m_last_dnd_rect;
94 Gfx::Rect m_last_geometry_label_rect;
95
96 String m_wallpaper_path;
97 WallpaperMode m_wallpaper_mode { WallpaperMode::Unchecked };
98 RefPtr<Gfx::Bitmap> m_wallpaper;
99};
100
101}