godot/editor/plugins/audio_stream_editor_plugin.cpp

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/*************************************************************************/
/* audio_stream_editor_plugin.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* 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.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "audio_stream_editor_plugin.h"
#include "core/io/resource_loader.h"
#include "core/project_settings.h"
#include "editor/audio_stream_preview.h"
#include "editor/editor_scale.h"
#include "editor/editor_settings.h"
void AudioStreamEditor::_notification(int p_what) {
if (p_what == NOTIFICATION_READY) {
AudioStreamPreviewGenerator::get_singleton()->connect("preview_updated", this, "_preview_changed");
}
if (p_what == NOTIFICATION_THEME_CHANGED || p_what == NOTIFICATION_ENTER_TREE) {
_play_button->set_icon(get_icon("MainPlay", "EditorIcons"));
_stop_button->set_icon(get_icon("Stop", "EditorIcons"));
_preview->set_frame_color(get_color("dark_color_2", "Editor"));
set_frame_color(get_color("dark_color_1", "Editor"));
_indicator->update();
_preview->update();
}
if (p_what == NOTIFICATION_PROCESS) {
_current = _player->get_playback_position();
_indicator->update();
}
if (p_what == NOTIFICATION_VISIBILITY_CHANGED) {
if (!is_visible_in_tree()) {
_stop();
}
}
}
void AudioStreamEditor::_draw_preview() {
Rect2 rect = _preview->get_rect();
Size2 size = get_size();
Ref<AudioStreamPreview> preview = AudioStreamPreviewGenerator::get_singleton()->generate_preview(stream);
float preview_len = preview->get_length();
Vector<Vector2> lines;
lines.resize(size.width * 2);
for (int i = 0; i < size.width; i++) {
float ofs = i * preview_len / size.width;
float ofs_n = (i + 1) * preview_len / 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;
lines.write[idx * 2 + 0] = Vector2(i + 1, rect.position.y + min * rect.size.y);
lines.write[idx * 2 + 1] = Vector2(i + 1, rect.position.y + max * rect.size.y);
}
Vector<Color> color;
color.push_back(get_color("contrast_color_2", "Editor"));
VS::get_singleton()->canvas_item_add_multiline(_preview->get_canvas_item(), lines, color);
}
void AudioStreamEditor::_preview_changed(ObjectID p_which) {
if (stream.is_valid() && stream->get_instance_id() == p_which) {
_preview->update();
}
}
void AudioStreamEditor::_changed_callback(Object *p_changed, const char *p_prop) {
if (!is_visible())
return;
update();
}
void AudioStreamEditor::_play() {
if (_player->is_playing()) {
_player->stop();
_play_button->set_icon(get_icon("MainPlay", "EditorIcons"));
set_process(false);
} else {
_player->play(_current);
_play_button->set_icon(get_icon("Pause", "EditorIcons"));
set_process(true);
}
}
void AudioStreamEditor::_stop() {
_player->stop();
_play_button->set_icon(get_icon("MainPlay", "EditorIcons"));
_current = 0;
_indicator->update();
set_process(false);
}
void AudioStreamEditor::_on_finished() {
_play_button->set_icon(get_icon("MainPlay", "EditorIcons"));
if (_current == _player->get_stream()->get_length()) {
_current = 0;
_indicator->update();
}
}
void AudioStreamEditor::_draw_indicator() {
if (!stream.is_valid()) {
return;
}
Rect2 rect = _preview->get_rect();
float len = stream->get_length();
float ofs_x = _current / len * rect.size.width;
_indicator->draw_line(Point2(ofs_x, 0), Point2(ofs_x, rect.size.height), get_color("accent_color", "Editor"), 1);
_current_label->set_text(String::num(_current, 2).pad_decimals(2) + " /");
}
void AudioStreamEditor::_on_input_indicator(Ref<InputEvent> p_event) {
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid()) {
if (mb->is_pressed()) {
_seek_to(mb->get_position().x);
}
_dragging = mb->is_pressed();
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
if (_dragging) {
_seek_to(mm->get_position().x);
}
}
}
void AudioStreamEditor::_seek_to(real_t p_x) {
_current = p_x / _preview->get_rect().size.x * stream->get_length();
_current = CLAMP(_current, 0, stream->get_length());
_player->seek(_current);
_indicator->update();
}
void AudioStreamEditor::edit(Ref<AudioStream> p_stream) {
if (!stream.is_null())
stream->remove_change_receptor(this);
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->add_change_receptor(this);
update();
} else {
hide();
}
}
void AudioStreamEditor::_bind_methods() {
ClassDB::bind_method(D_METHOD("_preview_changed"), &AudioStreamEditor::_preview_changed);
ClassDB::bind_method(D_METHOD("_play"), &AudioStreamEditor::_play);
ClassDB::bind_method(D_METHOD("_stop"), &AudioStreamEditor::_stop);
ClassDB::bind_method(D_METHOD("_on_finished"), &AudioStreamEditor::_on_finished);
ClassDB::bind_method(D_METHOD("_draw_preview"), &AudioStreamEditor::_draw_preview);
ClassDB::bind_method(D_METHOD("_draw_indicator"), &AudioStreamEditor::_draw_indicator);
ClassDB::bind_method(D_METHOD("_on_input_indicator"), &AudioStreamEditor::_on_input_indicator);
}
AudioStreamEditor::AudioStreamEditor() {
set_custom_minimum_size(Size2(1, 100) * EDSCALE);
_current = 0;
_dragging = false;
_player = memnew(AudioStreamPlayer);
_player->connect("finished", this, "_on_finished");
add_child(_player);
VBoxContainer *vbox = memnew(VBoxContainer);
vbox->set_anchors_and_margins_preset(PRESET_WIDE, PRESET_MODE_MINSIZE, 0);
add_child(vbox);
_preview = memnew(ColorRect);
_preview->set_v_size_flags(SIZE_EXPAND_FILL);
_preview->connect("draw", this, "_draw_preview");
vbox->add_child(_preview);
_indicator = memnew(Control);
_indicator->set_anchors_and_margins_preset(PRESET_WIDE);
_indicator->connect("draw", this, "_draw_indicator");
_indicator->connect("gui_input", this, "_on_input_indicator");
_preview->add_child(_indicator);
HBoxContainer *hbox = memnew(HBoxContainer);
hbox->add_constant_override("separation", 0);
vbox->add_child(hbox);
_play_button = memnew(ToolButton);
hbox->add_child(_play_button);
_play_button->set_focus_mode(Control::FOCUS_NONE);
_play_button->connect("pressed", this, "_play");
_stop_button = memnew(ToolButton);
hbox->add_child(_stop_button);
_stop_button->set_focus_mode(Control::FOCUS_NONE);
_stop_button->connect("pressed", this, "_stop");
_current_label = memnew(Label);
_current_label->set_align(Label::ALIGN_RIGHT);
_current_label->set_h_size_flags(SIZE_EXPAND_FILL);
_current_label->add_font_override("font", EditorNode::get_singleton()->get_gui_base()->get_font("status_source", "EditorFonts"));
_current_label->set_modulate(Color(1, 1, 1, 0.5));
hbox->add_child(_current_label);
_duration_label = memnew(Label);
_duration_label->add_font_override("font", EditorNode::get_singleton()->get_gui_base()->get_font("status_source", "EditorFonts"));
hbox->add_child(_duration_label);
}
void AudioStreamEditorPlugin::edit(Object *p_object) {
AudioStream *s = Object::cast_to<AudioStream>(p_object);
if (!s)
return;
audio_editor->edit(Ref<AudioStream>(s));
}
bool AudioStreamEditorPlugin::handles(Object *p_object) const {
return p_object->is_class("AudioStream");
}
void AudioStreamEditorPlugin::make_visible(bool p_visible) {
audio_editor->set_visible(p_visible);
}
AudioStreamEditorPlugin::AudioStreamEditorPlugin(EditorNode *p_node) {
editor = p_node;
audio_editor = memnew(AudioStreamEditor);
add_control_to_container(CONTAINER_PROPERTY_EDITOR_BOTTOM, audio_editor);
audio_editor->hide();
}
AudioStreamEditorPlugin::~AudioStreamEditorPlugin() {
}