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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#include "SoundPlayerWidget.h"
28#include <AK/StringBuilder.h>
29#include <LibGUI/BoxLayout.h>
30#include <LibGUI/Button.h>
31#include <LibGUI/Label.h>
32#include <LibGUI/MessageBox.h>
33#include <LibM/math.h>
34
35SoundPlayerWidget::SoundPlayerWidget(GUI::Window& window, NonnullRefPtr<Audio::ClientConnection> connection)
36 : m_window(window)
37 , m_connection(connection)
38 , m_manager(connection)
39{
40 set_fill_with_background_color(true);
41 set_layout<GUI::VerticalBoxLayout>();
42 layout()->set_margins({ 2, 2, 2, 2 });
43
44 auto& status_widget = add<GUI::Widget>();
45 status_widget.set_fill_with_background_color(true);
46 status_widget.set_layout<GUI::HorizontalBoxLayout>();
47
48 m_elapsed = status_widget.add<GUI::Label>();
49 m_elapsed->set_frame_shape(Gfx::FrameShape::Container);
50 m_elapsed->set_frame_shadow(Gfx::FrameShadow::Sunken);
51 m_elapsed->set_frame_thickness(2);
52 m_elapsed->set_size_policy(GUI::SizePolicy::Fixed, GUI::SizePolicy::Fill);
53 m_elapsed->set_preferred_size(80, 0);
54
55 auto& sample_widget_container = status_widget.add<GUI::Widget>();
56 sample_widget_container.set_layout<GUI::HorizontalBoxLayout>();
57 sample_widget_container.set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fill);
58
59 m_sample_widget = sample_widget_container.add<SampleWidget>();
60
61 m_remaining = status_widget.add<GUI::Label>();
62 m_remaining->set_frame_shape(Gfx::FrameShape::Container);
63 m_remaining->set_frame_shadow(Gfx::FrameShadow::Sunken);
64 m_remaining->set_frame_thickness(2);
65 m_remaining->set_size_policy(GUI::SizePolicy::Fixed, GUI::SizePolicy::Fill);
66 m_remaining->set_preferred_size(80, 0);
67
68 m_slider = add<Slider>(Orientation::Horizontal);
69 m_slider->set_min(0);
70 m_slider->set_enabled(false);
71 m_slider->on_knob_released = [&](int value) { m_manager.seek(denormalize_rate(value)); };
72
73 auto& control_widget = add<GUI::Widget>();
74 control_widget.set_fill_with_background_color(true);
75 control_widget.set_layout<GUI::HorizontalBoxLayout>();
76 control_widget.set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
77 control_widget.set_preferred_size(0, 30);
78 control_widget.layout()->set_margins({ 10, 2, 10, 2 });
79 control_widget.layout()->set_spacing(10);
80
81 m_play = control_widget.add<GUI::Button>();
82 m_play->set_icon(*m_pause_icon);
83 m_play->set_enabled(false);
84 m_play->on_click = [this] {
85 m_play->set_icon(m_manager.toggle_pause() ? *m_play_icon : *m_pause_icon);
86 };
87
88 m_stop = control_widget.add<GUI::Button>();
89 m_stop->set_enabled(false);
90 m_stop->set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/stop.png"));
91 m_stop->on_click = [this] { m_manager.stop(); };
92
93 m_status = add<GUI::Label>();
94 m_status->set_frame_shape(Gfx::FrameShape::Box);
95 m_status->set_frame_shadow(Gfx::FrameShadow::Raised);
96 m_status->set_frame_thickness(4);
97 m_status->set_text_alignment(Gfx::TextAlignment::CenterLeft);
98 m_status->set_size_policy(GUI::SizePolicy::Fill, GUI::SizePolicy::Fixed);
99 m_status->set_preferred_size(0, 18);
100 m_status->set_text("No file open!");
101
102 update_position(0);
103
104 m_manager.on_update = [&]() { update_ui(); };
105}
106
107SoundPlayerWidget::~SoundPlayerWidget()
108{
109}
110
111SoundPlayerWidget::Slider::~Slider()
112{
113}
114
115void SoundPlayerWidget::hide_scope(bool hide)
116{
117 m_sample_widget->set_visible(!hide);
118}
119
120void SoundPlayerWidget::open_file(String path)
121{
122 if (!path.ends_with(".wav")) {
123 GUI::MessageBox::show("Selected file is not a \".wav\" file!", "Filetype error", GUI::MessageBox::Type::Error);
124 return;
125 }
126
127 OwnPtr<Audio::WavLoader> loader = make<Audio::WavLoader>(path);
128 if (loader->has_error()) {
129 GUI::MessageBox::show(
130 String::format(
131 "Failed to load WAV file: %s (%s)",
132 path.characters(),
133 loader->error_string()),
134 "Filetype error", GUI::MessageBox::Type::Error);
135 return;
136 }
137
138 m_sample_ratio = PLAYBACK_MANAGER_RATE / static_cast<float>(loader->sample_rate());
139
140 m_slider->set_max(normalize_rate(static_cast<int>(loader->total_samples())));
141 m_slider->set_enabled(true);
142 m_play->set_enabled(true);
143 m_stop->set_enabled(true);
144
145 m_window.set_title(String::format("%s - SoundPlayer", loader->file()->filename().characters()));
146 m_status->set_text(String::format(
147 "Sample rate %uHz, %u %s, %u bits per sample",
148 loader->sample_rate(),
149 loader->num_channels(),
150 (loader->num_channels() == 1) ? "channel" : "channels",
151 loader->bits_per_sample()));
152
153 m_manager.set_loader(move(loader));
154 update_position(0);
155}
156
157int SoundPlayerWidget::normalize_rate(int rate) const
158{
159 return static_cast<int>(rate * m_sample_ratio);
160}
161
162int SoundPlayerWidget::denormalize_rate(int rate) const
163{
164 return static_cast<int>(rate / m_sample_ratio);
165}
166
167void SoundPlayerWidget::update_ui()
168{
169 m_sample_widget->set_buffer(m_manager.current_buffer());
170 m_play->set_icon(m_manager.is_paused() ? *m_play_icon : *m_pause_icon);
171 update_position(m_manager.connection()->get_played_samples());
172}
173
174void SoundPlayerWidget::update_position(const int position)
175{
176 int total_norm_samples = position + normalize_rate(m_manager.last_seek());
177 float seconds = (total_norm_samples / static_cast<float>(PLAYBACK_MANAGER_RATE));
178 float remaining_seconds = m_manager.total_length() - seconds;
179
180 m_elapsed->set_text(String::format(
181 "Elapsed:\n%u:%02u.%02u",
182 static_cast<int>(seconds / 60),
183 static_cast<int>(seconds) % 60,
184 static_cast<int>(seconds * 100) % 100));
185
186 m_remaining->set_text(String::format(
187 "Remaining:\n%u:%02u.%02u",
188 static_cast<int>(remaining_seconds / 60),
189 static_cast<int>(remaining_seconds) % 60,
190 static_cast<int>(remaining_seconds * 100) % 100));
191
192 m_slider->set_value(total_norm_samples);
193}