virtualx-engine/editor/editor_audio_buses.cpp

/*************************************************************************/
/*  editor_audio_buses.cpp                                               */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 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,   */
/* 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 "editor_audio_buses.h"

#include "editor_node.h"
#include "servers/audio_server.h"
#include "os/keyboard.h"
#include "io/resource_saver.h"
#include "filesystem_dock.h"

void EditorAudioBus::_notification(int p_what) {

	if (p_what==NOTIFICATION_READY) {

		vu_l->set_under_texture(get_icon("BusVuEmpty","EditorIcons"));
		vu_l->set_progress_texture(get_icon("BusVuFull","EditorIcons"));
		vu_r->set_under_texture(get_icon("BusVuEmpty","EditorIcons"));
		vu_r->set_progress_texture(get_icon("BusVuFull","EditorIcons"));
		scale->set_texture( get_icon("BusVuDb","EditorIcons"));

		disabled_vu = get_icon("BusVuFrozen","EditorIcons");

		prev_active=true;
		update_bus();
		set_process(true);
	}

	if (p_what==NOTIFICATION_DRAW) {

		if (has_focus()) {
			draw_style_box(get_stylebox("focus","Button"),Rect2(Vector2(),get_size()));
		}
	}

	if (p_what==NOTIFICATION_PROCESS) {

		float real_peak[2]={-100,-100};
		bool activity_found=false;

		int cc;
		switch(AudioServer::get_singleton()->get_speaker_mode()) {
			case AudioServer::SPEAKER_MODE_STEREO: cc = 1; break;
			case AudioServer::SPEAKER_SURROUND_51: cc = 4; break;
			case AudioServer::SPEAKER_SURROUND_71: cc = 5; break;
		}

		for(int i=0;i<cc;i++) {
			if (AudioServer::get_singleton()->is_bus_channel_active(get_index(),i)) {
				activity_found=true;
				real_peak[0]=MAX(real_peak[0],AudioServer::get_singleton()->get_bus_peak_volume_left_db(get_index(),i));
				real_peak[1]=MAX(real_peak[1],AudioServer::get_singleton()->get_bus_peak_volume_right_db(get_index(),i));
			}
		}


		if (real_peak[0]>peak_l) {
			peak_l = real_peak[0];
		} else {
			peak_l-=get_process_delta_time()*60.0;
		}

		if (real_peak[1]>peak_r) {
			peak_r = real_peak[1];
		} else {
			peak_r-=get_process_delta_time()*60.0;

		}

		vu_l->set_value(peak_l);
		vu_r->set_value(peak_r);

		if (activity_found!=prev_active) {
			if (activity_found) {
				vu_l->set_over_texture(Ref<Texture>());
				vu_r->set_over_texture(Ref<Texture>());
			} else {
				vu_l->set_over_texture(disabled_vu);
				vu_r->set_over_texture(disabled_vu);

			}

			prev_active=activity_found;
		}

	}

	if (p_what==NOTIFICATION_VISIBILITY_CHANGED) {

		peak_l=-100;
		peak_r=-100;
		prev_active=true;

		set_process(is_visible_in_tree());
	}

}

void EditorAudioBus::update_send() {

	send->clear();
	if (get_index()==0) {
		send->set_disabled(true);
		send->set_text("Speakers");
	} else {
		send->set_disabled(false);
		StringName current_send = AudioServer::get_singleton()->get_bus_send(get_index());
		int current_send_index=0; //by default to master

		for(int i=0;i<get_index();i++) {
			StringName send_name = AudioServer::get_singleton()->get_bus_name(i);
			send->add_item(send_name);
			if (send_name==current_send) {
				current_send_index=i;
			}
		}

		send->select(current_send_index);
	}
}

void EditorAudioBus::update_bus() {

	if (updating_bus)
		return;

	updating_bus=true;

	int index = get_index();

	slider->set_value(AudioServer::get_singleton()->get_bus_volume_db(index));
	track_name->set_text(AudioServer::get_singleton()->get_bus_name(index));
	if (get_index()==0)
		track_name->set_editable(false);

	solo->set_pressed( AudioServer::get_singleton()->is_bus_solo(index));
	mute->set_pressed( AudioServer::get_singleton()->is_bus_mute(index));
	bypass->set_pressed( AudioServer::get_singleton()->is_bus_bypassing_effects(index));
	// effects..
	effects->clear();

	TreeItem *root = effects->create_item();
	for(int i=0;i<AudioServer::get_singleton()->get_bus_effect_count(index);i++) {

		Ref<AudioEffect> afx = AudioServer::get_singleton()->get_bus_effect(index,i);

		TreeItem *fx = effects->create_item(root);
		fx->set_cell_mode(0,TreeItem::CELL_MODE_CHECK);
		fx->set_editable(0,true);
		fx->set_checked(0,AudioServer::get_singleton()->is_bus_effect_enabled(index,i));
		fx->set_text(0,afx->get_name());
		fx->set_metadata(0,i);

	}

	TreeItem *add = effects->create_item(root);
	add->set_cell_mode(0,TreeItem::CELL_MODE_CUSTOM);
	add->set_editable(0,true);
	add->set_selectable(0,false);
	add->set_text(0,"Add Effect");

	update_send();

	updating_bus=false;

}


void EditorAudioBus::_name_changed(const String& p_new_name) {

	if (p_new_name==AudioServer::get_singleton()->get_bus_name(get_index()))
		return;

	String attempt=p_new_name;
	int attempts=1;

	while(true) {

		bool name_free=true;
		for(int i=0;i<AudioServer::get_singleton()->get_bus_count();i++) {

			if (AudioServer::get_singleton()->get_bus_name(i)==attempt) {
				name_free=false;
				break;
			}
		}

		if (name_free) {
			break;
		}

		attempts++;
		attempt=p_new_name+" "+itos(attempts);
	}
	updating_bus=true;

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();

	StringName current = AudioServer::get_singleton()->get_bus_name(get_index());
	ur->create_action("Rename Audio Bus");
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_name",get_index(),attempt);
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_name",get_index(),current);

	for(int i=0;i<AudioServer::get_singleton()->get_bus_count();i++) {
		if (AudioServer::get_singleton()->get_bus_send(i)==current) {
			ur->add_do_method(AudioServer::get_singleton(),"set_bus_send",i,attempt);
			ur->add_undo_method(AudioServer::get_singleton(),"set_bus_send",i,current);
		}
	}

	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());


	ur->add_do_method(buses,"_update_sends");
	ur->add_undo_method(buses,"_update_sends");
	ur->commit_action();

	updating_bus=false;

}

void EditorAudioBus::_volume_db_changed(float p_db){

	if (updating_bus)
		return;

	updating_bus=true;


	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Change Audio Bus Volume",UndoRedo::MERGE_ENDS);
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_volume_db",get_index(),p_db);
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_volume_db",get_index(),AudioServer::get_singleton()->get_bus_volume_db(get_index()));
	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());
	ur->commit_action();

	updating_bus=false;

}
void EditorAudioBus::_solo_toggled(){

	updating_bus=true;

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Toggle Audio Bus Solo");
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_solo",get_index(),solo->is_pressed());
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_solo",get_index(),AudioServer::get_singleton()->is_bus_solo(get_index()));
	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());
	ur->commit_action();

	updating_bus=false;

}
void EditorAudioBus::_mute_toggled(){

	updating_bus=true;

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Toggle Audio Bus Mute");
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_mute",get_index(),mute->is_pressed());
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_mute",get_index(),AudioServer::get_singleton()->is_bus_mute(get_index()));
	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());
	ur->commit_action();

	updating_bus=false;

}
void EditorAudioBus::_bypass_toggled(){

	updating_bus=true;

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Toggle Audio Bus Bypass Effects");
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_bypass_effects",get_index(),bypass->is_pressed());
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_bypass_effects",get_index(),AudioServer::get_singleton()->is_bus_bypassing_effects(get_index()));
	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());
	ur->commit_action();

	updating_bus=false;


}

void EditorAudioBus::_send_selected(int p_which) {

	updating_bus=true;

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Select Audio Bus Send");
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_send",get_index(),send->get_item_text(p_which));
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_send",get_index(),AudioServer::get_singleton()->get_bus_send(get_index()));
	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());
	ur->commit_action();

	updating_bus=false;
}

void EditorAudioBus::_effect_selected() {

	TreeItem *effect = effects->get_selected();
	if (!effect)
		return;
	updating_bus=true;

	if (effect->get_metadata(0)!=Variant()) {

		int index = effect->get_metadata(0);
		Ref<AudioEffect> effect = AudioServer::get_singleton()->get_bus_effect(get_index(),index);
		if (effect.is_valid()) {
			EditorNode::get_singleton()->push_item(effect.ptr());
		}
	}

	updating_bus=false;

}

void EditorAudioBus::_effect_edited() {

	if (updating_bus)
		return;

	TreeItem *effect = effects->get_edited();
	if (!effect)
		return;

	if (effect->get_metadata(0)==Variant()) {
		Rect2 area = effects->get_item_rect(effect);

		effect_options->set_pos(effects->get_global_pos()+area.pos+Vector2(0,area.size.y));
		effect_options->popup();
		//add effect
	} else  {
		int index = effect->get_metadata(0);
		updating_bus=true;

		UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
		ur->create_action("Select Audio Bus Send");
		ur->add_do_method(AudioServer::get_singleton(),"set_bus_effect_enabled",get_index(),index,effect->is_checked(0));
		ur->add_undo_method(AudioServer::get_singleton(),"set_bus_effect_enabled",get_index(),index,AudioServer::get_singleton()->is_bus_effect_enabled(get_index(),index));
		ur->add_do_method(buses,"_update_bus",get_index());
		ur->add_undo_method(buses,"_update_bus",get_index());
		ur->commit_action();

		updating_bus=false;

	}

}

void EditorAudioBus::_effect_add(int p_which) {

	if (updating_bus)
		return;

	StringName name = effect_options->get_item_metadata(p_which);

	Object *fx = ClassDB::instance(name);
	ERR_FAIL_COND(!fx);
	AudioEffect *afx = fx->cast_to<AudioEffect>();
	ERR_FAIL_COND(!afx);
	Ref<AudioEffect> afxr = Ref<AudioEffect>(afx);

	afxr->set_name(effect_options->get_item_text(p_which));

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Add Audio Bus Effect");
	ur->add_do_method(AudioServer::get_singleton(),"add_bus_effect",get_index(),afxr,-1);
	ur->add_undo_method(AudioServer::get_singleton(),"remove_bus_effect",get_index(),AudioServer::get_singleton()->get_bus_effect_count(get_index()));
	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());
	ur->commit_action();
}

void EditorAudioBus::_gui_input(const InputEvent& p_event) {

	if (p_event.type==InputEvent::KEY && p_event.key.pressed && p_event.key.scancode==KEY_DELETE && !p_event.key.echo) {
		accept_event();
		emit_signal("delete_request");
	}
	if (p_event.type==InputEvent::MOUSE_BUTTON && p_event.mouse_button.button_index==2 && p_event.mouse_button.pressed) {

		Vector2 pos = Vector2(p_event.mouse_button.x,p_event.mouse_button.y);
		delete_popup->set_pos(get_global_pos()+pos);
		delete_popup->popup();
	}
}

void EditorAudioBus::_delete_pressed(int p_option) {

	if (p_option==1) {
		emit_signal("delete_request");
	} else if (p_option==0) {
		//duplicate
		emit_signal("duplicate_request",get_index());
	}

}


Variant EditorAudioBus::get_drag_data(const Point2& p_point) {

	if (get_index()==0) {
		return Variant();
	}

	Control *c = memnew(Control);
	Panel *p = memnew( Panel );
	c->add_child(p);
	p->add_style_override("panel",get_stylebox("focus","Button"));
	p->set_size(get_size());
	p->set_pos(-p_point);
	set_drag_preview(c);
	Dictionary d;
	d["type"]="move_audio_bus";
	d["index"]=get_index();
	emit_signal("drop_end_request");
	return d;
}

bool EditorAudioBus::can_drop_data(const Point2& p_point,const Variant& p_data) const {

	if (get_index()==0)
		return false;
	Dictionary d=p_data;
	if (d.has("type") && String(d["type"])=="move_audio_bus") {
		return true;
	}

	return false;
}
void EditorAudioBus::drop_data(const Point2& p_point,const Variant& p_data) {

	Dictionary d=p_data;
	emit_signal("dropped",d["index"],get_index());

}

Variant EditorAudioBus::get_drag_data_fw(const Point2& p_point,Control* p_from) {

	print_line("drag fw");
	TreeItem *item = effects->get_item_at_pos(p_point);
	if (!item) {
		print_line("no item");
		return Variant();
	}

	Variant md = item->get_metadata(0);

	if (md.get_type()==Variant::INT) {
		Dictionary fxd;
		fxd["type"]="audio_bus_effect";
		fxd["bus"]=get_index();
		fxd["effect"]=md;

		Label *l = memnew( Label );
		l->set_text(item->get_text(0));
		effects->set_drag_preview(l);

		return fxd;
	}

	return Variant();

}

bool EditorAudioBus::can_drop_data_fw(const Point2& p_point,const Variant& p_data,Control* p_from) const{

	Dictionary d = p_data;
	if (!d.has("type") || String(d["type"])!="audio_bus_effect")
		return false;

	TreeItem *item = effects->get_item_at_pos(p_point);
	if (!item)
		return false;

	effects->set_drop_mode_flags(Tree::DROP_MODE_INBETWEEN);

	return true;
}

void EditorAudioBus::drop_data_fw(const Point2& p_point,const Variant& p_data,Control* p_from){

	Dictionary d = p_data;

	TreeItem *item = effects->get_item_at_pos(p_point);
	if (!item)
		return;
	int pos=effects->get_drop_section_at_pos(p_point);
	Variant md = item->get_metadata(0);

	int paste_at;
	int bus = d["bus"];
	int effect = d["effect"];

	if (md.get_type()==Variant::INT) {
		paste_at=md;
		if (pos>0)
			paste_at++;

		if (bus==get_index() && paste_at >effect) {
			paste_at--;
		}
	} else {
		paste_at=-1;
	}


	bool enabled = AudioServer::get_singleton()->is_bus_effect_enabled(bus,effect);

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Move Bus Effect");
	ur->add_do_method(AudioServer::get_singleton(),"remove_bus_effect",bus,effect);
	ur->add_do_method(AudioServer::get_singleton(),"add_bus_effect",get_index(),AudioServer::get_singleton()->get_bus_effect(bus,effect),paste_at);

	if (paste_at==-1) {
		paste_at = AudioServer::get_singleton()->get_bus_effect_count(get_index());
		if (bus==get_index()) {
			paste_at--;
		}
	}
	if (!enabled) {
		ur->add_do_method(AudioServer::get_singleton(),"set_bus_effect_enabled",get_index(),paste_at,false);
	}

	ur->add_undo_method(AudioServer::get_singleton(),"remove_bus_effect",get_index(),paste_at);
	ur->add_undo_method(AudioServer::get_singleton(),"add_bus_effect",bus,AudioServer::get_singleton()->get_bus_effect(bus,effect),effect);
	if (!enabled) {
		ur->add_undo_method(AudioServer::get_singleton(),"set_bus_effect_enabled",bus,effect,false);
	}

	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());
	if (get_index()!=bus) {
		ur->add_do_method(buses,"_update_bus",bus);
		ur->add_undo_method(buses,"_update_bus",bus);
	}
	ur->commit_action();



}

void EditorAudioBus::_delete_effect_pressed(int p_option) {

	TreeItem * item = effects->get_selected();
	if (!item)
		return;

	if (item->get_metadata(0).get_type()!=Variant::INT)
		return;

	int index = item->get_metadata(0);

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Delete Bus Effect");
	ur->add_do_method(AudioServer::get_singleton(),"remove_bus_effect",get_index(),index);
	ur->add_undo_method(AudioServer::get_singleton(),"add_bus_effect",get_index(),AudioServer::get_singleton()->get_bus_effect(get_index(),index),index);
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_effect_enabled",get_index(),index,AudioServer::get_singleton()->is_bus_effect_enabled(get_index(),index));
	ur->add_do_method(buses,"_update_bus",get_index());
	ur->add_undo_method(buses,"_update_bus",get_index());
	ur->commit_action();


}

void EditorAudioBus::_effect_rmb(const Vector2& p_pos) {

	TreeItem * item = effects->get_selected();
	if (!item)
		return;

	if (item->get_metadata(0).get_type()!=Variant::INT)
		return;

	delete_effect_popup->set_pos(get_global_mouse_pos());
	delete_effect_popup->popup();
}

void EditorAudioBus::_bind_methods() {

	ClassDB::bind_method("update_bus",&EditorAudioBus::update_bus);
	ClassDB::bind_method("update_send",&EditorAudioBus::update_send);
	ClassDB::bind_method("_name_changed",&EditorAudioBus::_name_changed);
	ClassDB::bind_method("_volume_db_changed",&EditorAudioBus::_volume_db_changed);
	ClassDB::bind_method("_solo_toggled",&EditorAudioBus::_solo_toggled);
	ClassDB::bind_method("_mute_toggled",&EditorAudioBus::_mute_toggled);
	ClassDB::bind_method("_bypass_toggled",&EditorAudioBus::_bypass_toggled);
	ClassDB::bind_method("_name_focus_exit",&EditorAudioBus::_name_focus_exit);
	ClassDB::bind_method("_send_selected",&EditorAudioBus::_send_selected);
	ClassDB::bind_method("_effect_edited",&EditorAudioBus::_effect_edited);
	ClassDB::bind_method("_effect_selected",&EditorAudioBus::_effect_selected);
	ClassDB::bind_method("_effect_add",&EditorAudioBus::_effect_add);
	ClassDB::bind_method("_gui_input",&EditorAudioBus::_gui_input);
	ClassDB::bind_method("_delete_pressed",&EditorAudioBus::_delete_pressed);
	ClassDB::bind_method("get_drag_data_fw",&EditorAudioBus::get_drag_data_fw);
	ClassDB::bind_method("can_drop_data_fw",&EditorAudioBus::can_drop_data_fw);
	ClassDB::bind_method("drop_data_fw",&EditorAudioBus::drop_data_fw);
	ClassDB::bind_method("_delete_effect_pressed",&EditorAudioBus::_delete_effect_pressed);
	ClassDB::bind_method("_effect_rmb",&EditorAudioBus::_effect_rmb);



	ADD_SIGNAL(MethodInfo("duplicate_request"));
	ADD_SIGNAL(MethodInfo("delete_request"));
	ADD_SIGNAL(MethodInfo("drop_end_request"));
	ADD_SIGNAL(MethodInfo("dropped"));

}

EditorAudioBus::EditorAudioBus(EditorAudioBuses *p_buses) {

	buses=p_buses;
	updating_bus=false;

	VBoxContainer *vb = memnew( VBoxContainer );
	add_child(vb);

	set_v_size_flags(SIZE_EXPAND_FILL);

	track_name = memnew( LineEdit );
	vb->add_child(track_name);
	track_name->connect("text_entered",this,"_name_changed");
	track_name->connect("focus_exited",this,"_name_focus_exit");

	HBoxContainer *hbc = memnew( HBoxContainer);
	vb->add_child(hbc);
	hbc->add_spacer();
	solo = memnew( ToolButton );
	solo->set_text("S");
	solo->set_toggle_mode(true);
	solo->set_modulate(Color(0.8,1.2,0.8));
	solo->set_focus_mode(FOCUS_NONE);
	solo->connect("pressed",this,"_solo_toggled");
	hbc->add_child(solo);
	mute = memnew( ToolButton );
	mute->set_text("M");
	mute->set_toggle_mode(true);
	mute->set_modulate(Color(1.2,0.8,0.8));
	mute->set_focus_mode(FOCUS_NONE);
	mute->connect("pressed",this,"_mute_toggled");
	hbc->add_child(mute);
	bypass = memnew( ToolButton );
	bypass->set_text("B");
	bypass->set_toggle_mode(true);
	bypass->set_modulate(Color(1.1,1.1,0.8));
	bypass->set_focus_mode(FOCUS_NONE);
	bypass->connect("pressed",this,"_bypass_toggled");
	hbc->add_child(bypass);
	hbc->add_spacer();

	HBoxContainer *hb = memnew( HBoxContainer );
	vb->add_child(hb);
	slider = memnew( VSlider );
	slider->set_min(-80);
	slider->set_max(24);
	slider->set_step(0.1);

	slider->connect("value_changed",this,"_volume_db_changed");
	hb->add_child(slider);
	vu_l = memnew( TextureProgress );
	vu_l->set_fill_mode(TextureProgress::FILL_BOTTOM_TO_TOP);
	hb->add_child(vu_l);
	vu_l->set_min(-80);
	vu_l->set_max(24);
	vu_l->set_step(0.1);

	vu_r = memnew( TextureProgress );
	vu_r->set_fill_mode(TextureProgress::FILL_BOTTOM_TO_TOP);
	hb->add_child(vu_r);
	vu_r->set_min(-80);
	vu_r->set_max(24);
	vu_r->set_step(0.1);

	scale = memnew( TextureRect );
	hb->add_child(scale);

	//add_child(hb);

	effects = memnew( Tree );
	effects->set_hide_root(true);
	effects->set_custom_minimum_size(Size2(0,90)*EDSCALE);
	effects->set_hide_folding(true);
	vb->add_child(effects);
	effects->connect("item_edited",this,"_effect_edited");
	effects->connect("cell_selected",this,"_effect_selected");
	effects->set_edit_checkbox_cell_only_when_checkbox_is_pressed(true);
	effects->set_drag_forwarding(this);
	effects->connect("item_rmb_selected",this,"_effect_rmb");
	effects->set_allow_rmb_select(true);

	send = memnew( OptionButton );
	send->set_clip_text(true);
	send->connect("item_selected",this,"_send_selected");
	vb->add_child(send);

	set_focus_mode(FOCUS_CLICK);

	effect_options = memnew( PopupMenu );
	effect_options->connect("index_pressed",this,"_effect_add");
	add_child(effect_options);
	List<StringName> effects;
	ClassDB::get_inheriters_from_class("AudioEffect",&effects);
	effects.sort_custom<StringName::AlphCompare>();
	for (List<StringName>::Element *E=effects.front();E;E=E->next()) {
		if (!ClassDB::can_instance(E->get()))
			continue;

		Ref<Texture> icon;
		if (has_icon(E->get(),"EditorIcons")) {
			icon = get_icon(E->get(),"EditorIcons");
		}
		String name = E->get().operator String().replace("AudioEffect","");
		effect_options->add_item(name);
		effect_options->set_item_metadata(effect_options->get_item_count()-1,E->get());
		effect_options->set_item_icon(effect_options->get_item_count()-1,icon);
	}

	delete_popup = memnew( PopupMenu );
	delete_popup->add_item("Duplicate");
	delete_popup->add_item("Delete");
	add_child(delete_popup);
	delete_popup->connect("index_pressed",this,"_delete_pressed");

	delete_effect_popup = memnew( PopupMenu );
	delete_effect_popup->add_item("Delete Effect");
	add_child(delete_effect_popup);
	delete_effect_popup->connect("index_pressed",this,"_delete_effect_pressed");

}



bool EditorAudioBusDrop::can_drop_data(const Point2& p_point,const Variant& p_data) const {

	Dictionary d=p_data;
	if (d.has("type") && String(d["type"])=="move_audio_bus") {
		return true;
	}

	return false;
}
void EditorAudioBusDrop::drop_data(const Point2& p_point,const Variant& p_data){

	Dictionary d=p_data;
	emit_signal("dropped",d["index"],-1);

}

void EditorAudioBusDrop::_bind_methods() {

	ADD_SIGNAL(MethodInfo("dropped"));
}

EditorAudioBusDrop::EditorAudioBusDrop() {


}


void EditorAudioBuses::_update_buses() {

	while(bus_hb->get_child_count()>0) {
		memdelete(bus_hb->get_child(0));
	}

	drop_end=NULL;

	for(int i=0;i<AudioServer::get_singleton()->get_bus_count();i++) {

		EditorAudioBus *audio_bus = memnew( EditorAudioBus(this) );
		if (i==0) {
			audio_bus->set_self_modulate(Color(1,0.9,0.9));
		}
		bus_hb->add_child(audio_bus);
		audio_bus->connect("delete_request",this,"_delete_bus",varray(audio_bus),CONNECT_DEFERRED);
		audio_bus->connect("duplicate_request",this,"_duplicate_bus",varray(),CONNECT_DEFERRED);
		audio_bus->connect("drop_end_request",this,"_request_drop_end");
		audio_bus->connect("dropped",this,"_drop_at_index",varray(),CONNECT_DEFERRED);



	}
}

EditorAudioBuses *EditorAudioBuses::register_editor() {

	EditorAudioBuses * audio_buses = memnew( EditorAudioBuses );
	EditorNode::get_singleton()->add_bottom_panel_item("Audio",audio_buses);
	return audio_buses;
}

void EditorAudioBuses::_notification(int p_what) {

	if (p_what==NOTIFICATION_READY) {
		_update_buses();
	}

	if (p_what==NOTIFICATION_DRAG_END) {
		if (drop_end) {
			drop_end->queue_delete();
			drop_end=NULL;
		}
	}

	if (p_what==NOTIFICATION_PROCESS) {

		//check if anything was edited
		bool edited = AudioServer::get_singleton()->is_edited();
		for(int i=0;i<AudioServer::get_singleton()->get_bus_count();i++) {
			for(int j=0;j<AudioServer::get_singleton()->get_bus_effect_count(i);j++) {
				Ref<AudioEffect> effect = AudioServer::get_singleton()->get_bus_effect(i,j);
				if (effect->is_edited()) {
					edited=true;
					effect->set_edited(false);
				}
			}
		}

		AudioServer::get_singleton()->set_edited(false);

		if (edited) {

			save_timer->start();
		}
	}

}


void EditorAudioBuses::_add_bus() {

	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();

	//need to simulate new name, so we can undi :(
	ur->create_action("Add Audio Bus");
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_count",AudioServer::get_singleton()->get_bus_count()+1);
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_count",AudioServer::get_singleton()->get_bus_count());
	ur->add_do_method(this,"_update_buses");
	ur->add_undo_method(this,"_update_buses");
	ur->commit_action();

}

void EditorAudioBuses::_update_bus(int p_index) {

	if (p_index>=bus_hb->get_child_count())
		return;

	bus_hb->get_child(p_index)->call("update_bus");
}

void EditorAudioBuses::_update_sends() {

	for(int i=0;i<bus_hb->get_child_count();i++) {
		bus_hb->get_child(i)->call("update_send");
	}
}

void EditorAudioBuses::_delete_bus(Object* p_which) {

	EditorAudioBus *bus = p_which->cast_to<EditorAudioBus>();
	int index = bus->get_index();
	if (index==0) {
		EditorNode::get_singleton()->show_warning("Master bus can't be deleted!");
		return;
	}


	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();

	ur->create_action("Delete Audio Bus");
	ur->add_do_method(AudioServer::get_singleton(),"remove_bus",index);
	ur->add_undo_method(AudioServer::get_singleton(),"add_bus",index);
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_name",index,AudioServer::get_singleton()->get_bus_name(index));
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_volume_db",index,AudioServer::get_singleton()->get_bus_volume_db(index));
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_send",index,AudioServer::get_singleton()->get_bus_send(index));
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_solo",index,AudioServer::get_singleton()->is_bus_solo(index));
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_mute",index,AudioServer::get_singleton()->is_bus_mute(index));
	ur->add_undo_method(AudioServer::get_singleton(),"set_bus_bypass_effects",index,AudioServer::get_singleton()->is_bus_bypassing_effects(index));
	for(int i=0;i<AudioServer::get_singleton()->get_bus_effect_count(index);i++) {

		ur->add_undo_method(AudioServer::get_singleton(),"add_bus_effect",index,AudioServer::get_singleton()->get_bus_effect(index,i));
		ur->add_undo_method(AudioServer::get_singleton(),"set_bus_effect_enabled",index,i,AudioServer::get_singleton()->is_bus_effect_enabled(index,i));
	}
	ur->add_do_method(this,"_update_buses");
	ur->add_undo_method(this,"_update_buses");
	ur->commit_action();

}


void EditorAudioBuses::_duplicate_bus(int p_which) {

	int add_at_pos = p_which+1;
	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();
	ur->create_action("Duplicate Audio Bus");
	ur->add_do_method(AudioServer::get_singleton(),"add_bus",add_at_pos);
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_name",add_at_pos,AudioServer::get_singleton()->get_bus_name(p_which)+" Copy");
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_volume_db",add_at_pos,AudioServer::get_singleton()->get_bus_volume_db(p_which));
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_send",add_at_pos,AudioServer::get_singleton()->get_bus_send(p_which));
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_solo",add_at_pos,AudioServer::get_singleton()->is_bus_solo(p_which));
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_mute",add_at_pos,AudioServer::get_singleton()->is_bus_mute(p_which));
	ur->add_do_method(AudioServer::get_singleton(),"set_bus_bypass_effects",add_at_pos,AudioServer::get_singleton()->is_bus_bypassing_effects(p_which));
	for(int i=0;i<AudioServer::get_singleton()->get_bus_effect_count(p_which);i++) {

		ur->add_do_method(AudioServer::get_singleton(),"add_bus_effect",add_at_pos,AudioServer::get_singleton()->get_bus_effect(p_which,i));
		ur->add_do_method(AudioServer::get_singleton(),"set_bus_effect_enabled",add_at_pos,i,AudioServer::get_singleton()->is_bus_effect_enabled(p_which,i));
	}
	ur->add_undo_method(AudioServer::get_singleton(),"remove_bus",add_at_pos);
	ur->add_do_method(this,"_update_buses");
	ur->add_undo_method(this,"_update_buses");
	ur->commit_action();

}

void EditorAudioBuses::_request_drop_end() {

	if (!drop_end && bus_hb->get_child_count()) {
		drop_end = memnew( EditorAudioBusDrop );

		bus_hb->add_child(drop_end);
		drop_end->set_custom_minimum_size(bus_hb->get_child(0)->cast_to<Control>()->get_size());
		drop_end->connect("dropped",this,"_drop_at_index",varray(),CONNECT_DEFERRED);
	}
}

void EditorAudioBuses::_drop_at_index(int p_bus,int p_index) {


	UndoRedo *ur = EditorNode::get_singleton()->get_undo_redo();

	//need to simulate new name, so we can undi :(
	ur->create_action("Move Audio Bus");
	ur->add_do_method(AudioServer::get_singleton(),"move_bus",p_bus,p_index);
	int final_pos;
	if (p_index==p_bus) {
		final_pos=p_bus;
	} else if (p_index==-1) {
		final_pos = AudioServer::get_singleton()->get_bus_count()-1;
	} else if (p_index<p_bus) {
		final_pos = p_index;
	} else {
		final_pos = p_index -1;
	}
	ur->add_undo_method(AudioServer::get_singleton(),"move_bus",final_pos,p_bus);

	ur->add_do_method(this,"_update_buses");
	ur->add_undo_method(this,"_update_buses");
	ur->commit_action();
}

void EditorAudioBuses::_server_save() {

	Ref<AudioBusLayout> state = AudioServer::get_singleton()->generate_bus_layout();
	ResourceSaver::save(edited_path,state);

}

void EditorAudioBuses::_select_layout() {

	EditorNode::get_singleton()->get_filesystem_dock()->select_file(edited_path);
}

void EditorAudioBuses::_save_as_layout() {

	file_dialog->set_mode(EditorFileDialog::MODE_SAVE_FILE);
	file_dialog->set_title(TTR("Save Audio Bus Layout As.."));
	file_dialog->set_current_path(edited_path);
	file_dialog->popup_centered_ratio();
	new_layout=false;
}


void EditorAudioBuses::_new_layout() {

	file_dialog->set_mode(EditorFileDialog::MODE_SAVE_FILE);
	file_dialog->set_title(TTR("Location for New Layout.."));
	file_dialog->set_current_path(edited_path);
	file_dialog->popup_centered_ratio();
	new_layout=true;
}

void EditorAudioBuses::_load_layout() {

	file_dialog->set_mode(EditorFileDialog::MODE_OPEN_FILE);
	file_dialog->set_title(TTR("Open Audio Bus Layout"));
	file_dialog->set_current_path(edited_path);
	file_dialog->popup_centered_ratio();
	new_layout=false;
}


void EditorAudioBuses::_load_default_layout() {


	Ref<AudioBusLayout> state = ResourceLoader::load("res://default_bus_layout.tres");
	if (state.is_null()) {
		EditorNode::get_singleton()->show_warning("There is no 'res://default_bus_layout.tres' file.");
		return;
	}

	edited_path="res://default_bus_layout.tres";
	file->set_text(edited_path.get_file());
	AudioServer::get_singleton()->set_bus_layout(state);
	_update_buses();
	EditorNode::get_singleton()->get_undo_redo()->clear_history();
	call_deferred("_select_layout");
}

void EditorAudioBuses::_file_dialog_callback(const String& p_string) {

	if (file_dialog->get_mode()==EditorFileDialog::MODE_OPEN_FILE) {
		Ref<AudioBusLayout> state = ResourceLoader::load(p_string);
		if (state.is_null()) {
			EditorNode::get_singleton()->show_warning("Invalid file, not an audio bus layout.");
			return;
		}

		edited_path=p_string;
		file->set_text(p_string.get_file());
		AudioServer::get_singleton()->set_bus_layout(state);
		_update_buses();
		EditorNode::get_singleton()->get_undo_redo()->clear_history();
		call_deferred("_select_layout");

	} else if (file_dialog->get_mode()==EditorFileDialog::MODE_SAVE_FILE) {

		if (new_layout) {
			Ref<AudioBusLayout> empty_state;
			empty_state.instance();
			AudioServer::get_singleton()->set_bus_layout(empty_state);
		}

		Error err = ResourceSaver::save(p_string,AudioServer::get_singleton()->generate_bus_layout());

		if (err!=OK) {
			EditorNode::get_singleton()->show_warning("Error saving file: "+p_string);
			return;
		}

		edited_path=p_string;
		file->set_text(p_string.get_file());
		_update_buses();
		EditorNode::get_singleton()->get_undo_redo()->clear_history();
		call_deferred("_select_layout");
	}

}

void EditorAudioBuses::_bind_methods() {

	ClassDB::bind_method("_add_bus",&EditorAudioBuses::_add_bus);
	ClassDB::bind_method("_update_buses",&EditorAudioBuses::_update_buses);
	ClassDB::bind_method("_update_bus",&EditorAudioBuses::_update_bus);
	ClassDB::bind_method("_update_sends",&EditorAudioBuses::_update_sends);
	ClassDB::bind_method("_delete_bus",&EditorAudioBuses::_delete_bus);
	ClassDB::bind_method("_request_drop_end",&EditorAudioBuses::_request_drop_end);
	ClassDB::bind_method("_drop_at_index",&EditorAudioBuses::_drop_at_index);
	ClassDB::bind_method("_server_save",&EditorAudioBuses::_server_save);
	ClassDB::bind_method("_select_layout",&EditorAudioBuses::_select_layout);
	ClassDB::bind_method("_save_as_layout",&EditorAudioBuses::_save_as_layout);
	ClassDB::bind_method("_load_layout",&EditorAudioBuses::_load_layout);
	ClassDB::bind_method("_load_default_layout",&EditorAudioBuses::_load_default_layout);
	ClassDB::bind_method("_new_layout",&EditorAudioBuses::_new_layout);
	ClassDB::bind_method("_duplicate_bus",&EditorAudioBuses::_duplicate_bus);

	ClassDB::bind_method("_file_dialog_callback",&EditorAudioBuses::_file_dialog_callback);
}

EditorAudioBuses::EditorAudioBuses()
{

	drop_end = NULL;
	top_hb = memnew( HBoxContainer );
	add_child(top_hb);

	add = memnew( Button );
	top_hb->add_child(add);;
	add->set_text(TTR("Add Bus"));

	add->connect("pressed",this,"_add_bus");



	top_hb->add_spacer();

	file = memnew( ToolButton );
	file->set_text("default_bus_layout.tres");
	top_hb->add_child(file);
	file->connect("pressed",this,"_select_layout");

	load = memnew( Button );
	load->set_text(TTR("Load"));
	top_hb->add_child(load);
	load->connect("pressed",this,"_load_layout");

	save_as = memnew( Button );
	save_as->set_text(TTR("Save As"));
	top_hb->add_child(save_as);
	save_as->connect("pressed",this,"_save_as_layout");

	_default = memnew( Button );
	_default->set_text(TTR("Default"));
	top_hb->add_child(_default);
	_default->connect("pressed",this,"_load_default_layout");

	_new = memnew( Button );
	_new->set_text(TTR("Create"));
	top_hb->add_child(_new);
	_new->connect("pressed",this,"_new_layout");

	bus_scroll = memnew( ScrollContainer );
	bus_scroll->set_v_size_flags(SIZE_EXPAND_FILL);
	bus_scroll->set_enable_h_scroll(true);
	bus_scroll->set_enable_v_scroll(false);
	add_child(bus_scroll);
	bus_hb = memnew( HBoxContainer );
	bus_scroll->add_child(bus_hb);

	save_timer=memnew(Timer);
	save_timer->set_wait_time(0.8);
	save_timer->set_one_shot(true);
	add_child(save_timer);
	save_timer->connect("timeout",this,"_server_save");

	set_v_size_flags(SIZE_EXPAND_FILL);


	edited_path = "res://default_bus_layout.tres";

	file_dialog = memnew( EditorFileDialog );
	List<String> ext;
	ResourceLoader::get_recognized_extensions_for_type("AudioServerState",&ext);
	for (List<String>::Element *E=ext.front();E;E=E->next()) {
		file_dialog->add_filter("*."+E->get()+"; Audio Bus State");
	}
	add_child(file_dialog);
	file_dialog->connect("file_selected",this,"_file_dialog_callback");

	set_process(true);

}
void EditorAudioBuses::open_layout(const String& p_path) {

	EditorNode::get_singleton()->make_bottom_panel_item_visible(this);

	Ref<AudioBusLayout> state = ResourceLoader::load(p_path);
	if (state.is_null()) {
		EditorNode::get_singleton()->show_warning("Invalid file, not an audio bus layout.");
		return;
	}

	edited_path=p_path;
	file->set_text(p_path.get_file());
	AudioServer::get_singleton()->set_bus_layout(state);
	_update_buses();
	EditorNode::get_singleton()->get_undo_redo()->clear_history();
	call_deferred("_select_layout");
}

void AudioBusesEditorPlugin::edit(Object *p_node) {

	if (p_node->cast_to<AudioBusLayout>()) {

		String path = p_node->cast_to<AudioBusLayout>()->get_path();
		if (path.is_resource_file()) {
			audio_bus_editor->open_layout(path);
		}
	}
}

bool AudioBusesEditorPlugin::handles(Object *p_node) const {

	return (p_node->cast_to<AudioBusLayout>()!=NULL);
}

void AudioBusesEditorPlugin::make_visible(bool p_visible){


}

AudioBusesEditorPlugin::AudioBusesEditorPlugin(EditorAudioBuses *p_node) {

	audio_bus_editor=p_node;
}

AudioBusesEditorPlugin::~AudioBusesEditorPlugin() {

}