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/*************************************************************************/
/* graph_edit.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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. */
/*************************************************************************/
#ifndef GRAPH_EDIT_H
#define GRAPH_EDIT_H
#include "scene/gui/box_container.h"
#include "scene/gui/graph_node.h"
#include "scene/gui/scroll_bar.h"
#include "scene/gui/slider.h"
#include "scene/gui/spin_box.h"
#include "scene/gui/texture_rect.h"
#include "scene/gui/tool_button.h"
class GraphEdit;
class GraphEditFilter : public Control {
GDCLASS(GraphEditFilter, Control);
friend class GraphEdit;
GraphEdit *ge;
virtual bool has_point(const Point2 &p_point) const;
public:
GraphEditFilter(GraphEdit *p_edit);
};
class GraphEdit : public Control {
GDCLASS(GraphEdit, Control);
public:
struct Connection {
StringName from;
StringName to;
int from_port;
int to_port;
float activity;
};
private:
ToolButton *zoom_minus;
ToolButton *zoom_reset;
ToolButton *zoom_plus;
ToolButton *snap_button;
SpinBox *snap_amount;
void _zoom_minus();
void _zoom_reset();
void _zoom_plus();
HScrollBar *h_scroll;
VScrollBar *v_scroll;
float port_grab_distance_horizontal;
float port_grab_distance_vertical;
bool connecting;
String connecting_from;
bool connecting_out;
int connecting_index;
int connecting_type;
Color connecting_color;
bool connecting_target;
Vector2 connecting_to;
String connecting_target_to;
int connecting_target_index;
bool just_disconnected;
bool dragging;
bool just_selected;
Vector2 drag_accum;
Point2 drag_origin; // Workaround for GH-5907
float zoom;
bool box_selecting;
bool box_selection_mode_additive;
Point2 box_selecting_from;
Point2 box_selecting_to;
Rect2 box_selecting_rect;
List<GraphNode *> previus_selected;
bool setting_scroll_ofs;
bool right_disconnects;
bool updating;
bool awaiting_scroll_offset_update;
List<Connection> connections;
void _bake_segment2d(Vector<Vector2> &points, Vector<Color> &colors, float p_begin, float p_end, const Vector2 &p_a, const Vector2 &p_out, const Vector2 &p_b, const Vector2 &p_in, int p_depth, int p_min_depth, int p_max_depth, float p_tol, const Color &p_color, const Color &p_to_color, int &lines) const;
void _draw_cos_line(CanvasItem *p_where, const Vector2 &p_from, const Vector2 &p_to, const Color &p_color, const Color &p_to_color);
void _graph_node_raised(Node *p_gn);
void _graph_node_moved(Node *p_gn);
void _update_scroll();
void _scroll_moved(double);
void _gui_input(const Ref<InputEvent> &p_ev);
Control *connections_layer;
GraphEditFilter *top_layer;
void _top_layer_input(const Ref<InputEvent> &p_ev);
bool is_in_hot_zone(const Vector2 &pos, const Vector2 &p_mouse_pos);
void _top_layer_draw();
void _connections_layer_draw();
void _update_scroll_offset();
Array _get_connection_list() const;
bool lines_on_bg;
struct ConnType {
union {
struct {
uint32_t type_a;
uint32_t type_b;
};
uint64_t key;
};
bool operator<(const ConnType &p_type) const {
return key < p_type.key;
}
ConnType(uint32_t a = 0, uint32_t b = 0) {
type_a = a;
type_b = b;
}
};
Set<ConnType> valid_connection_types;
Set<int> valid_left_disconnect_types;
Set<int> valid_right_disconnect_types;
HBoxContainer *zoom_hb;
friend class GraphEditFilter;
bool _filter_input(const Point2 &p_point);
void _snap_toggled();
void _snap_value_changed(double);
bool _check_clickable_control(Control *p_control, const Vector2 &pos);
protected:
static void _bind_methods();
virtual void add_child_notify(Node *p_child);
virtual void remove_child_notify(Node *p_child);
void _notification(int p_what);
virtual bool clips_input() const;
public:
Error connect_node(const StringName &p_from, int p_from_port, const StringName &p_to, int p_to_port);
bool is_node_connected(const StringName &p_from, int p_from_port, const StringName &p_to, int p_to_port);
void disconnect_node(const StringName &p_from, int p_from_port, const StringName &p_to, int p_to_port);
void clear_connections();
void set_connection_activity(const StringName &p_from, int p_from_port, const StringName &p_to, int p_to_port, float p_activity);
void add_valid_connection_type(int p_type, int p_with_type);
void remove_valid_connection_type(int p_type, int p_with_type);
bool is_valid_connection_type(int p_type, int p_with_type) const;
void set_zoom(float p_zoom);
void set_zoom_custom(float p_zoom, const Vector2 &p_center);
float get_zoom() const;
GraphEditFilter *get_top_layer() const { return top_layer; }
void get_connection_list(List<Connection> *r_connections) const;
void set_right_disconnects(bool p_enable);
bool is_right_disconnects_enabled() const;
void add_valid_right_disconnect_type(int p_type);
void remove_valid_right_disconnect_type(int p_type);
void add_valid_left_disconnect_type(int p_type);
void remove_valid_left_disconnect_type(int p_type);
void set_scroll_ofs(const Vector2 &p_ofs);
Vector2 get_scroll_ofs() const;
void set_selected(Node *p_child);
void set_use_snap(bool p_enable);
bool is_using_snap() const;
int get_snap() const;
void set_snap(int p_snap);
HBoxContainer *get_zoom_hbox();
GraphEdit();
};
#endif // GRAPHEdit_H
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