1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/*************************************************************************/
/* curve_editor_plugin.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2018 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 CURVE_EDITOR_PLUGIN_H
#define CURVE_EDITOR_PLUGIN_H
#include "editor/editor_node.h"
#include "editor/editor_plugin.h"
#include "scene/resources/curve.h"
// Edits a y(x) curve
class CurveEditor : public Control {
GDCLASS(CurveEditor, Control)
public:
CurveEditor();
Size2 get_minimum_size() const;
void set_curve(Ref<Curve> curve);
enum PresetID {
PRESET_FLAT0 = 0,
PRESET_FLAT1,
PRESET_LINEAR,
PRESET_EASE_IN,
PRESET_EASE_OUT,
PRESET_SMOOTHSTEP,
PRESET_COUNT
};
enum ContextAction {
CONTEXT_ADD_POINT = 0,
CONTEXT_REMOVE_POINT,
CONTEXT_LINEAR,
CONTEXT_LEFT_LINEAR,
CONTEXT_RIGHT_LINEAR
};
enum TangentIndex {
TANGENT_NONE = -1,
TANGENT_LEFT = 0,
TANGENT_RIGHT = 1
};
protected:
void _notification(int p_what);
static void _bind_methods();
private:
void on_gui_input(const Ref<InputEvent> &p_event);
void on_preset_item_selected(int preset_id);
void _curve_changed();
void on_context_menu_item_selected(int action_id);
void open_context_menu(Vector2 pos);
int get_point_at(Vector2 pos) const;
TangentIndex get_tangent_at(Vector2 pos) const;
void add_point(Vector2 pos);
void remove_point(int index);
void toggle_linear(TangentIndex tangent = TANGENT_NONE);
void set_selected_point(int index);
void set_hover_point_index(int index);
void update_view_transform();
Vector2 get_tangent_view_pos(int i, TangentIndex tangent) const;
Vector2 get_view_pos(Vector2 world_pos) const;
Vector2 get_world_pos(Vector2 view_pos) const;
void _draw();
void stroke_rect(Rect2 rect, Color color);
private:
Transform2D _world_to_view;
Ref<Curve> _curve_ref;
PopupMenu *_context_menu;
PopupMenu *_presets_menu;
Array _undo_data;
bool _has_undo_data;
Vector2 _context_click_pos;
int _selected_point;
int _hover_point;
TangentIndex _selected_tangent;
bool _dragging;
// Constant
float _hover_radius;
float _tangents_length;
};
class CurveEditorPlugin : public EditorPlugin {
GDCLASS(CurveEditorPlugin, EditorPlugin)
public:
CurveEditorPlugin(EditorNode *p_node);
~CurveEditorPlugin();
String get_name() const { return "Curve"; }
bool has_main_screen() const { return false; }
void edit(Object *p_object);
bool handles(Object *p_object) const;
void make_visible(bool p_visible);
private:
static void _bind_methods();
void _curve_texture_changed();
private:
CurveEditor *_view;
Ref<Resource> _current_ref;
EditorNode *_editor_node;
ToolButton *_toggle_button;
};
class CurvePreviewGenerator : public EditorResourcePreviewGenerator {
GDCLASS(CurvePreviewGenerator, EditorResourcePreviewGenerator)
public:
bool handles(const String &p_type) const;
Ref<Texture> generate(const Ref<Resource> &p_from);
};
#endif // CURVE_EDITOR_PLUGIN_H
|