virtualx-engine/editor/import/audio_stream_import_settings.cpp
Alessandro Famà 155bebfdf2 Fix playback position label update in Audio Stream Importer
The current playback position label doesn't get updated if the playhead is not visible. The label is updated in `_draw_indicator()` at the end of the function, but we return early if the calculated offset falls outside the valid range. This fix moves the label updating above this check, ensuring that the label always gets updated regardless of the visibility of the playhead.

Fixes #86550.
2024-01-05 12:41:30 +01:00

660 lines
25 KiB
C++

/**************************************************************************/
/* audio_stream_import_settings.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
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/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/**************************************************************************/
#include "audio_stream_import_settings.h"
#include "editor/audio_stream_preview.h"
#include "editor/editor_file_system.h"
#include "editor/editor_scale.h"
#include "editor/editor_string_names.h"
#include "scene/gui/check_box.h"
AudioStreamImportSettingsDialog *AudioStreamImportSettingsDialog::singleton = nullptr;
void AudioStreamImportSettingsDialog::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_READY: {
AudioStreamPreviewGenerator::get_singleton()->connect("preview_updated", callable_mp(this, &AudioStreamImportSettingsDialog::_preview_changed));
connect("confirmed", callable_mp(this, &AudioStreamImportSettingsDialog::_reimport));
} break;
case NOTIFICATION_THEME_CHANGED: {
_play_button->set_icon(get_editor_theme_icon(SNAME("MainPlay")));
_stop_button->set_icon(get_editor_theme_icon(SNAME("Stop")));
_preview->set_color(get_theme_color(SNAME("dark_color_2"), EditorStringName(Editor)));
color_rect->set_color(get_theme_color(SNAME("dark_color_1"), EditorStringName(Editor)));
_current_label->begin_bulk_theme_override();
_current_label->add_theme_font_override("font", get_theme_font(SNAME("status_source"), EditorStringName(EditorFonts)));
_current_label->add_theme_font_size_override("font_size", get_theme_font_size(SNAME("status_source_size"), EditorStringName(EditorFonts)));
_current_label->end_bulk_theme_override();
_duration_label->begin_bulk_theme_override();
_duration_label->add_theme_font_override("font", get_theme_font(SNAME("status_source"), EditorStringName(EditorFonts)));
_duration_label->add_theme_font_size_override("font_size", get_theme_font_size(SNAME("status_source_size"), EditorStringName(EditorFonts)));
_duration_label->end_bulk_theme_override();
zoom_in->set_icon(get_editor_theme_icon(SNAME("ZoomMore")));
zoom_out->set_icon(get_editor_theme_icon(SNAME("ZoomLess")));
zoom_reset->set_icon(get_editor_theme_icon(SNAME("ZoomReset")));
_indicator->queue_redraw();
_preview->queue_redraw();
} break;
case NOTIFICATION_PROCESS: {
_current = _player->get_playback_position();
_indicator->queue_redraw();
} break;
case NOTIFICATION_VISIBILITY_CHANGED: {
if (!is_visible()) {
_stop();
}
} break;
}
}
void AudioStreamImportSettingsDialog::_draw_preview() {
Rect2 rect = _preview->get_rect();
Size2 rect_size = rect.size;
int width = rect_size.width;
Ref<AudioStreamPreview> preview = AudioStreamPreviewGenerator::get_singleton()->generate_preview(stream);
float preview_offset = zoom_bar->get_value();
float preview_len = zoom_bar->get_page();
Ref<Font> beat_font = get_theme_font(SNAME("main"), EditorStringName(EditorFonts));
int main_size = get_theme_font_size(SNAME("main_size"), EditorStringName(EditorFonts));
Vector<Vector2> points;
points.resize(width * 2);
Color color_active = get_theme_color(SNAME("contrast_color_2"), EditorStringName(Editor));
Color color_inactive = color_active;
color_inactive.a *= 0.5;
Vector<Color> colors;
colors.resize(width);
float inactive_from = 1e20;
float beat_size = 0;
int last_beat = 0;
if (stream->get_bpm() > 0) {
beat_size = 60 / float(stream->get_bpm());
int y_ofs = beat_font->get_height(main_size) + 4 * EDSCALE;
rect.position.y += y_ofs;
rect.size.y -= y_ofs;
if (stream->get_beat_count() > 0) {
last_beat = stream->get_beat_count();
inactive_from = last_beat * beat_size;
}
}
for (int i = 0; i < width; i++) {
float ofs = preview_offset + i * preview_len / rect_size.width;
float ofs_n = preview_offset + (i + 1) * preview_len / rect_size.width;
float max = preview->get_max(ofs, ofs_n) * 0.5 + 0.5;
float min = preview->get_min(ofs, ofs_n) * 0.5 + 0.5;
int idx = i;
points.write[idx * 2 + 0] = Vector2(i + 1, rect.position.y + min * rect.size.y);
points.write[idx * 2 + 1] = Vector2(i + 1, rect.position.y + max * rect.size.y);
colors.write[idx] = ofs > inactive_from ? color_inactive : color_active;
}
if (!points.is_empty()) {
RS::get_singleton()->canvas_item_add_multiline(_preview->get_canvas_item(), points, colors);
}
if (beat_size) {
Color beat_color = Color(1, 1, 1, 1);
Color final_beat_color = beat_color;
Color bar_color = beat_color;
beat_color.a *= 0.4;
bar_color.a *= 0.6;
int prev_beat = 0; // Do not draw beat zero
Color color_bg = color_active;
color_bg.a *= 0.2;
_preview->draw_rect(Rect2(0, 0, rect.size.width, rect.position.y), color_bg);
int bar_beats = stream->get_bar_beats();
int last_text_end_x = 0;
for (int i = 0; i < width; i++) {
float ofs = preview_offset + i * preview_len / rect_size.width;
int beat = int(ofs / beat_size);
if (beat != prev_beat) {
String text = itos(beat);
int text_w = beat_font->get_string_size(text).width;
if (i - text_w / 2 > last_text_end_x + 2 * EDSCALE) {
int x_ofs = i - text_w / 2;
_preview->draw_string(beat_font, Point2(x_ofs, 2 * EDSCALE + beat_font->get_ascent(main_size)), text, HORIZONTAL_ALIGNMENT_LEFT, rect.size.width - x_ofs, Font::DEFAULT_FONT_SIZE, color_active);
last_text_end_x = i + text_w / 2;
}
if (beat == last_beat) {
_preview->draw_rect(Rect2i(i, rect.position.y, 2, rect.size.height), final_beat_color);
// Darken subsequent beats
beat_color.a *= 0.3;
color_active.a *= 0.3;
} else {
_preview->draw_rect(Rect2i(i, rect.position.y, 1, rect.size.height), (beat % bar_beats) == 0 ? bar_color : beat_color);
}
prev_beat = beat;
}
}
}
}
void AudioStreamImportSettingsDialog::_preview_changed(ObjectID p_which) {
if (stream.is_valid() && stream->get_instance_id() == p_which) {
_preview->queue_redraw();
}
}
void AudioStreamImportSettingsDialog::_preview_zoom_in() {
if (!stream.is_valid()) {
return;
}
float page_size = zoom_bar->get_page();
zoom_bar->set_page(page_size * 0.5);
zoom_bar->set_value(zoom_bar->get_value() + page_size * 0.25);
_preview->queue_redraw();
_indicator->queue_redraw();
}
void AudioStreamImportSettingsDialog::_preview_zoom_out() {
if (!stream.is_valid()) {
return;
}
float page_size = zoom_bar->get_page();
zoom_bar->set_page(MIN(zoom_bar->get_max(), page_size * 2.0));
zoom_bar->set_value(zoom_bar->get_value() - page_size * 0.5);
_preview->queue_redraw();
_indicator->queue_redraw();
}
void AudioStreamImportSettingsDialog::_preview_zoom_reset() {
if (!stream.is_valid()) {
return;
}
zoom_bar->set_max(stream->get_length());
zoom_bar->set_page(zoom_bar->get_max());
zoom_bar->set_value(0);
_preview->queue_redraw();
_indicator->queue_redraw();
}
void AudioStreamImportSettingsDialog::_preview_zoom_offset_changed(double) {
_preview->queue_redraw();
_indicator->queue_redraw();
}
void AudioStreamImportSettingsDialog::_audio_changed() {
if (!is_visible()) {
return;
}
_preview->queue_redraw();
_indicator->queue_redraw();
color_rect->queue_redraw();
}
void AudioStreamImportSettingsDialog::_play() {
if (_player->is_playing()) {
// '_pausing' variable indicates that we want to pause the audio player, not stop it. See '_on_finished()'.
_pausing = true;
_player->stop();
_play_button->set_icon(get_editor_theme_icon(SNAME("MainPlay")));
set_process(false);
} else {
_player->play(_current);
_play_button->set_icon(get_editor_theme_icon(SNAME("Pause")));
set_process(true);
}
}
void AudioStreamImportSettingsDialog::_stop() {
_player->stop();
_play_button->set_icon(get_editor_theme_icon(SNAME("MainPlay")));
_current = 0;
_indicator->queue_redraw();
set_process(false);
}
void AudioStreamImportSettingsDialog::_on_finished() {
_play_button->set_icon(get_editor_theme_icon(SNAME("MainPlay")));
if (!_pausing) {
_current = 0;
_indicator->queue_redraw();
} else {
_pausing = false;
}
set_process(false);
}
void AudioStreamImportSettingsDialog::_draw_indicator() {
if (!stream.is_valid()) {
return;
}
Rect2 rect = _preview->get_rect();
Ref<Font> beat_font = get_theme_font(SNAME("main"), EditorStringName(EditorFonts));
int main_size = get_theme_font_size(SNAME("main_size"), EditorStringName(EditorFonts));
if (stream->get_bpm() > 0) {
int y_ofs = beat_font->get_height(main_size) + 4 * EDSCALE;
rect.position.y += y_ofs;
rect.size.height -= y_ofs;
}
_current_label->set_text(String::num(_current, 2).pad_decimals(2) + " /");
float ofs_x = (_current - zoom_bar->get_value()) * rect.size.width / zoom_bar->get_page();
if (ofs_x < 0 || ofs_x >= rect.size.width) {
return;
}
const Color color = get_theme_color(SNAME("accent_color"), EditorStringName(Editor));
_indicator->draw_line(Point2(ofs_x, rect.position.y), Point2(ofs_x, rect.position.y + rect.size.height), color, Math::round(2 * EDSCALE));
_indicator->draw_texture(
get_editor_theme_icon(SNAME("TimelineIndicator")),
Point2(ofs_x - get_editor_theme_icon(SNAME("TimelineIndicator"))->get_width() * 0.5, rect.position.y),
color);
if (stream->get_bpm() > 0 && _hovering_beat != -1) {
// Draw hovered beat.
float preview_offset = zoom_bar->get_value();
float preview_len = zoom_bar->get_page();
float beat_size = 60 / float(stream->get_bpm());
int prev_beat = 0;
for (int i = 0; i < rect.size.width; i++) {
float ofs = preview_offset + i * preview_len / rect.size.width;
int beat = int(ofs / beat_size);
if (beat != prev_beat) {
String text = itos(beat);
int text_w = beat_font->get_string_size(text).width;
if (i - text_w / 2 > 2 * EDSCALE && beat == _hovering_beat) {
int x_ofs = i - text_w / 2;
_indicator->draw_string(beat_font, Point2(x_ofs, 2 * EDSCALE + beat_font->get_ascent(main_size)), text, HORIZONTAL_ALIGNMENT_LEFT, rect.size.width - x_ofs, Font::DEFAULT_FONT_SIZE, color);
break;
}
prev_beat = beat;
}
}
}
}
void AudioStreamImportSettingsDialog::_on_indicator_mouse_exited() {
_hovering_beat = -1;
_indicator->queue_redraw();
}
void AudioStreamImportSettingsDialog::_on_input_indicator(Ref<InputEvent> p_event) {
const Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid() && mb->get_button_index() == MouseButton::LEFT) {
if (stream->get_bpm() > 0) {
int main_size = get_theme_font_size(SNAME("main_size"), EditorStringName(EditorFonts));
Ref<Font> beat_font = get_theme_font(SNAME("main"), EditorStringName(EditorFonts));
int y_ofs = beat_font->get_height(main_size) + 4 * EDSCALE;
if ((!_dragging && mb->get_position().y < y_ofs) || _beat_len_dragging) {
if (mb->is_pressed()) {
_set_beat_len_to(mb->get_position().x);
_beat_len_dragging = true;
} else {
_beat_len_dragging = false;
}
return;
}
}
if (mb->is_pressed()) {
_seek_to(mb->get_position().x);
}
_dragging = mb->is_pressed();
}
const Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
if (_dragging) {
_seek_to(mm->get_position().x);
}
if (_beat_len_dragging) {
_set_beat_len_to(mm->get_position().x);
}
if (stream->get_bpm() > 0) {
int main_size = get_theme_font_size(SNAME("main_size"), EditorStringName(EditorFonts));
Ref<Font> beat_font = get_theme_font(SNAME("main"), EditorStringName(EditorFonts));
int y_ofs = beat_font->get_height(main_size) + 4 * EDSCALE;
if (mm->get_position().y < y_ofs) {
int new_hovering_beat = _get_beat_at_pos(mm->get_position().x);
if (new_hovering_beat != _hovering_beat) {
_hovering_beat = new_hovering_beat;
_indicator->queue_redraw();
}
} else if (_hovering_beat != -1) {
_hovering_beat = -1;
_indicator->queue_redraw();
}
}
}
}
int AudioStreamImportSettingsDialog::_get_beat_at_pos(real_t p_x) {
float ofs_sec = zoom_bar->get_value() + p_x * zoom_bar->get_page() / _preview->get_size().width;
ofs_sec = CLAMP(ofs_sec, 0, stream->get_length());
float beat_size = 60 / float(stream->get_bpm());
int beat = int(ofs_sec / beat_size + 0.5);
if (beat * beat_size > stream->get_length() + 0.001) { // Stream may end few audio frames before but may still want to use full loop.
beat--;
}
return beat;
}
void AudioStreamImportSettingsDialog::_set_beat_len_to(real_t p_x) {
int beat = _get_beat_at_pos(p_x);
if (beat < 1) {
beat = 1; // Because 0 is disable.
}
updating_settings = true;
beats_enabled->set_pressed(true);
beats_edit->set_value(beat);
updating_settings = false;
_settings_changed();
}
void AudioStreamImportSettingsDialog::_seek_to(real_t p_x) {
_current = zoom_bar->get_value() + p_x / _preview->get_rect().size.x * zoom_bar->get_page();
_current = CLAMP(_current, 0, stream->get_length());
_player->seek(_current);
_indicator->queue_redraw();
}
void AudioStreamImportSettingsDialog::edit(const String &p_path, const String &p_importer, const Ref<AudioStream> &p_stream) {
if (!stream.is_null()) {
stream->disconnect_changed(callable_mp(this, &AudioStreamImportSettingsDialog::_audio_changed));
}
importer = p_importer;
path = p_path;
stream = p_stream;
_player->set_stream(stream);
_current = 0;
String text = String::num(stream->get_length(), 2).pad_decimals(2) + "s";
_duration_label->set_text(text);
if (!stream.is_null()) {
stream->connect_changed(callable_mp(this, &AudioStreamImportSettingsDialog::_audio_changed));
_preview->queue_redraw();
_indicator->queue_redraw();
color_rect->queue_redraw();
} else {
hide();
}
params.clear();
if (stream.is_valid()) {
Ref<ConfigFile> config_file;
config_file.instantiate();
Error err = config_file->load(p_path + ".import");
updating_settings = true;
if (err == OK) {
double bpm = config_file->get_value("params", "bpm", 0);
int beats = config_file->get_value("params", "beat_count", 0);
bpm_edit->set_value(bpm > 0 ? bpm : 120);
bpm_enabled->set_pressed(bpm > 0);
beats_edit->set_value(beats);
beats_enabled->set_pressed(beats > 0);
loop->set_pressed(config_file->get_value("params", "loop", false));
loop_offset->set_value(config_file->get_value("params", "loop_offset", 0));
bar_beats_edit->set_value(config_file->get_value("params", "bar_beats", 4));
List<String> keys;
config_file->get_section_keys("params", &keys);
for (const String &K : keys) {
params[K] = config_file->get_value("params", K);
}
} else {
bpm_edit->set_value(false);
bpm_enabled->set_pressed(false);
beats_edit->set_value(0);
beats_enabled->set_pressed(false);
bar_beats_edit->set_value(4);
loop->set_pressed(false);
loop_offset->set_value(0);
}
_preview_zoom_reset();
updating_settings = false;
_settings_changed();
set_title(vformat(TTR("Audio Stream Importer: %s"), p_path.get_file()));
popup_centered();
}
}
void AudioStreamImportSettingsDialog::_settings_changed() {
if (updating_settings) {
return;
}
updating_settings = true;
stream->call("set_loop", loop->is_pressed());
stream->call("set_loop_offset", loop_offset->get_value());
if (loop->is_pressed()) {
loop_offset->set_editable(true);
} else {
loop_offset->set_editable(false);
}
if (bpm_enabled->is_pressed()) {
stream->call("set_bpm", bpm_edit->get_value());
beats_enabled->set_disabled(false);
beats_edit->set_editable(true);
bar_beats_edit->set_editable(true);
double bpm = bpm_edit->get_value();
if (bpm > 0) {
float beat_size = 60 / float(bpm);
int beat_max = int((stream->get_length() + 0.001) / beat_size);
int current_beat = beats_edit->get_value();
beats_edit->set_max(beat_max);
if (current_beat > beat_max) {
beats_edit->set_value(beat_max);
stream->call("set_beat_count", beat_max);
}
}
stream->call("set_bar_beats", bar_beats_edit->get_value());
} else {
stream->call("set_bpm", 0);
stream->call("set_bar_beats", 4);
beats_enabled->set_disabled(true);
beats_edit->set_editable(false);
bar_beats_edit->set_editable(false);
}
if (bpm_enabled->is_pressed() && beats_enabled->is_pressed()) {
stream->call("set_beat_count", beats_edit->get_value());
} else {
stream->call("set_beat_count", 0);
}
updating_settings = false;
_preview->queue_redraw();
_indicator->queue_redraw();
color_rect->queue_redraw();
}
void AudioStreamImportSettingsDialog::_reimport() {
params["loop"] = loop->is_pressed();
params["loop_offset"] = loop_offset->get_value();
params["bpm"] = bpm_enabled->is_pressed() ? double(bpm_edit->get_value()) : double(0);
params["beat_count"] = (bpm_enabled->is_pressed() && beats_enabled->is_pressed()) ? int(beats_edit->get_value()) : int(0);
params["bar_beats"] = (bpm_enabled->is_pressed()) ? int(bar_beats_edit->get_value()) : int(4);
EditorFileSystem::get_singleton()->reimport_file_with_custom_parameters(path, importer, params);
}
AudioStreamImportSettingsDialog::AudioStreamImportSettingsDialog() {
get_ok_button()->set_text(TTR("Reimport"));
get_cancel_button()->set_text(TTR("Close"));
VBoxContainer *main_vbox = memnew(VBoxContainer);
add_child(main_vbox);
HBoxContainer *loop_hb = memnew(HBoxContainer);
loop_hb->add_theme_constant_override("separation", 4 * EDSCALE);
loop = memnew(CheckBox);
loop->set_text(TTR("Enable"));
loop->set_tooltip_text(TTR("Enable looping."));
loop->connect("toggled", callable_mp(this, &AudioStreamImportSettingsDialog::_settings_changed).unbind(1));
loop_hb->add_child(loop);
loop_hb->add_spacer();
loop_hb->add_child(memnew(Label(TTR("Offset:"))));
loop_offset = memnew(SpinBox);
loop_offset->set_max(10000);
loop_offset->set_step(0.001);
loop_offset->set_suffix("sec");
loop_offset->set_tooltip_text(TTR("Loop offset (from beginning). Note that if BPM is set, this setting will be ignored."));
loop_offset->connect("value_changed", callable_mp(this, &AudioStreamImportSettingsDialog::_settings_changed).unbind(1));
loop_hb->add_child(loop_offset);
main_vbox->add_margin_child(TTR("Loop:"), loop_hb);
HBoxContainer *interactive_hb = memnew(HBoxContainer);
interactive_hb->add_theme_constant_override("separation", 4 * EDSCALE);
bpm_enabled = memnew(CheckBox);
bpm_enabled->set_text((TTR("BPM:")));
bpm_enabled->connect("toggled", callable_mp(this, &AudioStreamImportSettingsDialog::_settings_changed).unbind(1));
interactive_hb->add_child(bpm_enabled);
bpm_edit = memnew(SpinBox);
bpm_edit->set_max(400);
bpm_edit->set_step(0.01);
bpm_edit->set_tooltip_text(TTR("Configure the Beats Per Measure (tempo) used for the interactive streams.\nThis is required in order to configure beat information."));
bpm_edit->connect("value_changed", callable_mp(this, &AudioStreamImportSettingsDialog::_settings_changed).unbind(1));
interactive_hb->add_child(bpm_edit);
interactive_hb->add_spacer();
beats_enabled = memnew(CheckBox);
beats_enabled->set_text(TTR("Beat Count:"));
beats_enabled->connect("toggled", callable_mp(this, &AudioStreamImportSettingsDialog::_settings_changed).unbind(1));
interactive_hb->add_child(beats_enabled);
beats_edit = memnew(SpinBox);
beats_edit->set_tooltip_text(TTR("Configure the amount of Beats used for music-aware looping. If zero, it will be autodetected from the length.\nIt is recommended to set this value (either manually or by clicking on a beat number in the preview) to ensure looping works properly."));
beats_edit->set_max(99999);
beats_edit->connect("value_changed", callable_mp(this, &AudioStreamImportSettingsDialog::_settings_changed).unbind(1));
interactive_hb->add_child(beats_edit);
bar_beats_label = memnew(Label(TTR("Bar Beats:")));
interactive_hb->add_child(bar_beats_label);
bar_beats_edit = memnew(SpinBox);
bar_beats_edit->set_tooltip_text(TTR("Configure the Beats Per Bar. This used for music-aware transitions between AudioStreams."));
bar_beats_edit->set_min(2);
bar_beats_edit->set_max(32);
bar_beats_edit->connect("value_changed", callable_mp(this, &AudioStreamImportSettingsDialog::_settings_changed).unbind(1));
interactive_hb->add_child(bar_beats_edit);
interactive_hb->add_spacer();
main_vbox->add_margin_child(TTR("Music Playback:"), interactive_hb);
color_rect = memnew(ColorRect);
main_vbox->add_margin_child(TTR("Preview:"), color_rect);
color_rect->set_custom_minimum_size(Size2(600, 200) * EDSCALE);
color_rect->set_v_size_flags(Control::SIZE_EXPAND_FILL);
_player = memnew(AudioStreamPlayer);
_player->connect("finished", callable_mp(this, &AudioStreamImportSettingsDialog::_on_finished));
color_rect->add_child(_player);
VBoxContainer *vbox = memnew(VBoxContainer);
vbox->set_anchors_and_offsets_preset(Control::PRESET_FULL_RECT, Control::PRESET_MODE_MINSIZE, 0);
color_rect->add_child(vbox);
vbox->set_v_size_flags(Control::SIZE_EXPAND_FILL);
_preview = memnew(ColorRect);
_preview->set_v_size_flags(Control::SIZE_EXPAND_FILL);
_preview->connect("draw", callable_mp(this, &AudioStreamImportSettingsDialog::_draw_preview));
_preview->set_v_size_flags(Control::SIZE_EXPAND_FILL);
vbox->add_child(_preview);
HBoxContainer *zoom_hbox = memnew(HBoxContainer);
zoom_bar = memnew(HScrollBar);
zoom_in = memnew(Button);
zoom_in->set_flat(true);
zoom_reset = memnew(Button);
zoom_reset->set_flat(true);
zoom_out = memnew(Button);
zoom_out->set_flat(true);
zoom_hbox->add_child(zoom_bar);
zoom_bar->set_h_size_flags(Control::SIZE_EXPAND_FILL);
zoom_bar->set_v_size_flags(Control::SIZE_EXPAND_FILL);
zoom_hbox->add_child(zoom_out);
zoom_hbox->add_child(zoom_reset);
zoom_hbox->add_child(zoom_in);
zoom_in->connect("pressed", callable_mp(this, &AudioStreamImportSettingsDialog::_preview_zoom_in));
zoom_reset->connect("pressed", callable_mp(this, &AudioStreamImportSettingsDialog::_preview_zoom_reset));
zoom_out->connect("pressed", callable_mp(this, &AudioStreamImportSettingsDialog::_preview_zoom_out));
zoom_bar->connect("value_changed", callable_mp(this, &AudioStreamImportSettingsDialog::_preview_zoom_offset_changed));
vbox->add_child(zoom_hbox);
_indicator = memnew(Control);
_indicator->set_anchors_and_offsets_preset(Control::PRESET_FULL_RECT);
_indicator->connect("draw", callable_mp(this, &AudioStreamImportSettingsDialog::_draw_indicator));
_indicator->connect("gui_input", callable_mp(this, &AudioStreamImportSettingsDialog::_on_input_indicator));
_indicator->connect("mouse_exited", callable_mp(this, &AudioStreamImportSettingsDialog::_on_indicator_mouse_exited));
_preview->add_child(_indicator);
HBoxContainer *hbox = memnew(HBoxContainer);
hbox->add_theme_constant_override("separation", 0);
vbox->add_child(hbox);
_play_button = memnew(Button);
_play_button->set_flat(true);
hbox->add_child(_play_button);
_play_button->set_focus_mode(Control::FOCUS_NONE);
_play_button->connect("pressed", callable_mp(this, &AudioStreamImportSettingsDialog::_play));
_stop_button = memnew(Button);
_stop_button->set_flat(true);
hbox->add_child(_stop_button);
_stop_button->set_focus_mode(Control::FOCUS_NONE);
_stop_button->connect("pressed", callable_mp(this, &AudioStreamImportSettingsDialog::_stop));
_current_label = memnew(Label);
_current_label->set_horizontal_alignment(HORIZONTAL_ALIGNMENT_RIGHT);
_current_label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
_current_label->set_modulate(Color(1, 1, 1, 0.5));
hbox->add_child(_current_label);
_duration_label = memnew(Label);
hbox->add_child(_duration_label);
singleton = this;
}