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Code Issues Activity Actions

SoundPlayer: Let the user open a file from the GUI

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The user now can open a file without passing it as an argument
This commit is contained in:
Till Mayer 2019-11-09 17:15:16 +01:00 • committed by Andreas Kling
parent b7efebe11c
commit 56cd8b4d17
5 changed files with 123 additions and 66 deletions
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67
Applications/SoundPlayer/SoundPlayerWidget.cpp
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@ -3,19 +3,18 @@
#include <LibGUI/GBoxLayout.h>
#include <LibGUI/GButton.h>
#include <LibGUI/GLabel.h>
#include <LibGUI/GMessageBox.h>
#include <LibM/math.h>
SoundPlayerWidget::SoundPlayerWidget(GWindow& window, NonnullRefPtr<AClientConnection> connection, AWavLoader& loader)
: m_manager(PlaybackManager(connection, loader))
SoundPlayerWidget::SoundPlayerWidget(GWindow& window, NonnullRefPtr<AClientConnection> connection)
: m_window(window)
, m_connection(connection)
, m_manager(connection)
{
window.set_title(String::format("SoundPlayer - \"%s\"", loader.file()->filename().characters()));
set_fill_with_background_color(true);
set_layout(make<GBoxLayout>(Orientation::Vertical));
layout()->set_margins({ 2, 2, 2, 2 });
m_sample_ratio = PLAYBACK_MANAGER_RATE / static_cast<float>(loader.sample_rate());
auto status_widget = GWidget::construct(this);
status_widget->set_fill_with_background_color(true);
status_widget->set_layout(make<GBoxLayout>(Orientation::Horizontal));
@ -38,7 +37,7 @@ SoundPlayerWidget::SoundPlayerWidget(GWindow& window, NonnullRefPtr<AClientConne
m_slider = Slider::construct(Orientation::Horizontal, this);
m_slider->set_min(0);
m_slider->set_max(normalize_rate(static_cast<int>(loader.total_samples())));
m_slider->set_enabled(false);
m_slider->on_knob_released = [&](int value) { m_manager.seek(denormalize_rate(value)); };
auto control_widget = GWidget::construct(this);
@ -51,13 +50,15 @@ SoundPlayerWidget::SoundPlayerWidget(GWindow& window, NonnullRefPtr<AClientConne
m_play = GButton::construct(control_widget);
m_play->set_icon(*m_pause_icon);
m_play->set_enabled(false);
m_play->on_click = [this](GButton& button) {
button.set_icon(m_manager.toggle_pause() ? *m_play_icon : *m_pause_icon);
};
auto stop = GButton::construct(control_widget);
stop->set_icon(GraphicsBitmap::load_from_file("/res/icons/16x16/stop.png"));
stop->on_click = [&](GButton&) { m_manager.stop(); };
m_stop = GButton::construct(control_widget);
m_stop->set_enabled(false);
m_stop->set_icon(GraphicsBitmap::load_from_file("/res/icons/16x16/stop.png"));
m_stop->on_click = [&](GButton&) { m_manager.stop(); };
m_status = GLabel::construct(this);
m_status->set_frame_shape(FrameShape::Box);
@ -66,18 +67,11 @@ SoundPlayerWidget::SoundPlayerWidget(GWindow& window, NonnullRefPtr<AClientConne
m_status->set_text_alignment(TextAlignment::CenterLeft);
m_status->set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
m_status->set_preferred_size(0, 18);
m_status->set_text(String::format(
"Sample rate %uHz, %u %s, %u bits per sample",
loader.sample_rate(),
loader.num_channels(),
(loader.num_channels() == 1) ? "channel" : "channels",
loader.bits_per_sample()));
m_status->set_text("No file open!");
update_position(0);
m_manager.on_update = [&]() { update_ui(); };
m_manager.play();
}
SoundPlayerWidget::~SoundPlayerWidget()
@ -88,6 +82,43 @@ SoundPlayerWidget::Slider::~Slider()
{
}
void SoundPlayerWidget::open_file(String path)
{
if (!path.ends_with(".wav")) {
GMessageBox::show("Selected file is not a \".wav\" file!", "Filetype error", GMessageBox::Type::Error);
return;
}
OwnPtr<AWavLoader> loader = make<AWavLoader>(path);
if (loader->has_error()) {
GMessageBox::show(
String::format(
"Failed to load WAV file: %s (%s)",
path.characters(),
loader->error_string()),
"Filetype error", GMessageBox::Type::Error);
return;
}
m_sample_ratio = PLAYBACK_MANAGER_RATE / static_cast<float>(loader->sample_rate());
m_slider->set_max(normalize_rate(static_cast<int>(loader->total_samples())));
m_slider->set_enabled(true);
m_play->set_enabled(true);
m_stop->set_enabled(true);
m_window.set_title(String::format("SoundPlayer - \"%s\"", loader->file()->filename().characters()));
m_status->set_text(String::format(
"Sample rate %uHz, %u %s, %u bits per sample",
loader->sample_rate(),
loader->num_channels(),
(loader->num_channels() == 1) ? "channel" : "channels",
loader->bits_per_sample()));
m_manager.set_loader(move(loader));
update_position(0);
}
int SoundPlayerWidget::normalize_rate(int rate) const
{
return static_cast<int>(rate * m_sample_ratio);