initial commit, 4.5 stable

editor/audio/editor_audio_buses.h

@@ -0,0 +1,277 @@
+/**************************************************************************/
+/*  editor_audio_buses.h                                                  */
+/**************************************************************************/
+/*                         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,    */
+/* 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.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "editor/plugins/editor_plugin.h"
+#include "scene/gui/box_container.h"
+#include "scene/gui/button.h"
+#include "scene/gui/control.h"
+#include "scene/gui/line_edit.h"
+#include "scene/gui/menu_button.h"
+#include "scene/gui/option_button.h"
+#include "scene/gui/panel.h"
+#include "scene/gui/panel_container.h"
+#include "scene/gui/scroll_container.h"
+#include "scene/gui/slider.h"
+#include "scene/gui/texture_progress_bar.h"
+#include "scene/gui/texture_rect.h"
+#include "scene/gui/tree.h"
+
+class EditorAudioBuses;
+class EditorFileDialog;
+
+class EditorAudioBus : public PanelContainer {
+	GDCLASS(EditorAudioBus, PanelContainer);
+
+	Ref<Texture2D> disabled_vu;
+	LineEdit *track_name = nullptr;
+	MenuButton *bus_options = nullptr;
+	VSlider *slider = nullptr;
+
+	int cc;
+	static const int CHANNELS_MAX = 4;
+
+	struct {
+		bool prev_active = false;
+
+		float peak_l = 0;
+		float peak_r = 0;
+
+		TextureProgressBar *vu_l = nullptr;
+		TextureProgressBar *vu_r = nullptr;
+	} channel[CHANNELS_MAX];
+
+	OptionButton *send = nullptr;
+
+	PopupMenu *effect_options = nullptr;
+	PopupMenu *bus_popup = nullptr;
+	PopupMenu *delete_effect_popup = nullptr;
+
+	Panel *audio_value_preview_box = nullptr;
+	Label *audio_value_preview_label = nullptr;
+	Timer *preview_timer = nullptr;
+
+	Button *solo = nullptr;
+	Button *mute = nullptr;
+	Button *bypass = nullptr;
+
+	Tree *effects = nullptr;
+
+	bool updating_bus = false;
+	bool is_master;
+	mutable bool hovering_drop = false;
+
+	virtual void gui_input(const Ref<InputEvent> &p_event) override;
+	void _effects_gui_input(Ref<InputEvent> p_event);
+	void _bus_popup_pressed(int p_option);
+
+	void _name_changed(const String &p_new_name);
+	void _name_focus_exit() { _name_changed(track_name->get_text()); }
+	void _volume_changed(float p_normalized);
+	float _normalized_volume_to_scaled_db(float normalized);
+	float _scaled_db_to_normalized_volume(float db);
+	void _show_value(float slider_value);
+	void _hide_value_preview();
+	void _solo_toggled();
+	void _mute_toggled();
+	void _bypass_toggled();
+	void _send_selected(int p_which);
+	void _effect_edited();
+	void _effect_add(int p_which);
+	void _effect_selected();
+	void _delete_effect_pressed(int p_option);
+	void _effect_rmb(const Vector2 &p_pos, MouseButton p_button);
+	void _update_visible_channels();
+
+	virtual Variant get_drag_data(const Point2 &p_point) override;
+	virtual bool can_drop_data(const Point2 &p_point, const Variant &p_data) const override;
+	virtual void drop_data(const Point2 &p_point, const Variant &p_data) override;
+
+	Variant get_drag_data_fw(const Point2 &p_point, Control *p_from);
+	bool can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const;
+	void drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from);
+
+	friend class EditorAudioBuses;
+
+	EditorAudioBuses *buses = nullptr;
+
+protected:
+	static void _bind_methods();
+	void _notification(int p_what);
+
+public:
+	void update_bus();
+	void update_send();
+
+	EditorAudioBus(EditorAudioBuses *p_buses = nullptr, bool p_is_master = false);
+};
+
+class EditorAudioBusDrop : public Control {
+	GDCLASS(EditorAudioBusDrop, Control);
+
+	virtual bool can_drop_data(const Point2 &p_point, const Variant &p_data) const override;
+	virtual void drop_data(const Point2 &p_point, const Variant &p_data) override;
+
+	mutable bool hovering_drop = false;
+
+protected:
+	static void _bind_methods();
+	void _notification(int p_what);
+};
+
+class EditorAudioBuses : public VBoxContainer {
+	GDCLASS(EditorAudioBuses, VBoxContainer);
+
+	HBoxContainer *top_hb = nullptr;
+
+	ScrollContainer *bus_scroll = nullptr;
+	HBoxContainer *bus_hb = nullptr;
+
+	EditorAudioBusDrop *drop_end = nullptr;
+
+	Label *file = nullptr;
+
+	Button *add = nullptr;
+	Button *load = nullptr;
+	Button *save_as = nullptr;
+	Button *_default = nullptr;
+	Button *_new = nullptr;
+
+	Timer *save_timer = nullptr;
+	String edited_path;
+
+	void _rebuild_buses();
+	void _update_bus(int p_index);
+	void _update_sends();
+
+	void _add_bus();
+	void _delete_bus(Object *p_which);
+	void _duplicate_bus(int p_which);
+	void _reset_bus_volume(Object *p_which);
+
+	void _request_drop_end();
+	void _drop_at_index(int p_bus, int p_index);
+
+	void _server_save();
+
+	void _select_layout();
+	void _load_layout();
+	void _save_as_layout();
+	void _load_default_layout();
+	void _new_layout();
+
+	EditorFileDialog *file_dialog = nullptr;
+	bool new_layout = false;
+
+	void _file_dialog_callback(const String &p_string);
+
+protected:
+	static void _bind_methods();
+	void _notification(int p_what);
+
+public:
+	void open_layout(const String &p_path);
+
+	static EditorAudioBuses *register_editor();
+
+	EditorAudioBuses();
+};
+
+class EditorAudioMeterNotches : public Control {
+	GDCLASS(EditorAudioMeterNotches, Control);
+
+private:
+	struct AudioNotch {
+		float relative_position = 0;
+		float db_value = 0;
+		bool render_db_value = false;
+
+		_FORCE_INLINE_ AudioNotch(float r_pos, float db_v, bool rndr_val) {
+			relative_position = r_pos;
+			db_value = db_v;
+			render_db_value = rndr_val;
+		}
+
+		_FORCE_INLINE_ AudioNotch(const AudioNotch &n) {
+			relative_position = n.relative_position;
+			db_value = n.db_value;
+			render_db_value = n.render_db_value;
+		}
+
+		_FORCE_INLINE_ void operator=(const EditorAudioMeterNotches::AudioNotch &n) {
+			relative_position = n.relative_position;
+			db_value = n.db_value;
+			render_db_value = n.render_db_value;
+		}
+
+		_FORCE_INLINE_ AudioNotch() {}
+	};
+
+	List<AudioNotch> notches;
+
+	struct ThemeCache {
+		Color notch_color;
+
+		Ref<Font> font;
+		int font_size = 0;
+	} theme_cache;
+
+public:
+	const float line_length = 5.0f;
+	const float label_space = 2.0f;
+	const float btm_padding = 9.0f;
+	const float top_padding = 5.0f;
+
+	void add_notch(float p_normalized_offset, float p_db_value, bool p_render_value = false);
+	Size2 get_minimum_size() const override;
+
+private:
+	virtual void _update_theme_item_cache() override;
+
+	static void _bind_methods();
+	void _notification(int p_what);
+	void _draw_audio_notches();
+};
+
+class AudioBusesEditorPlugin : public EditorPlugin {
+	GDCLASS(AudioBusesEditorPlugin, EditorPlugin);
+
+	EditorAudioBuses *audio_bus_editor = nullptr;
+
+public:
+	virtual String get_plugin_name() const override { return "SampleLibrary"; }
+	bool has_main_screen() const override { return false; }
+	virtual void edit(Object *p_node) override;
+	virtual bool handles(Object *p_node) const override;
+	virtual void make_visible(bool p_visible) override;
+
+	AudioBusesEditorPlugin(EditorAudioBuses *p_node);
+};