1/**************************************************************************/
2/* cast_2d_editor_plugin.cpp */
3/**************************************************************************/
4/* This file is part of: */
5/* GODOT ENGINE */
6/* https://godotengine.org */
7/**************************************************************************/
8/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
9/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
10/* */
11/* Permission is hereby granted, free of charge, to any person obtaining */
12/* a copy of this software and associated documentation files (the */
13/* "Software"), to deal in the Software without restriction, including */
14/* without limitation the rights to use, copy, modify, merge, publish, */
15/* distribute, sublicense, and/or sell copies of the Software, and to */
16/* permit persons to whom the Software is furnished to do so, subject to */
17/* the following conditions: */
18/* */
19/* The above copyright notice and this permission notice shall be */
20/* included in all copies or substantial portions of the Software. */
21/* */
22/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
23/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
24/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
25/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
26/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
27/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
28/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
29/**************************************************************************/
30
31#include "cast_2d_editor_plugin.h"
32
33#include "canvas_item_editor_plugin.h"
34#include "editor/editor_node.h"
35#include "editor/editor_undo_redo_manager.h"
36#include "scene/2d/ray_cast_2d.h"
37#include "scene/2d/shape_cast_2d.h"
38
39void Cast2DEditor::_notification(int p_what) {
40 switch (p_what) {
41 case NOTIFICATION_ENTER_TREE: {
42 get_tree()->connect("node_removed", callable_mp(this, &Cast2DEditor::_node_removed));
43 } break;
44
45 case NOTIFICATION_EXIT_TREE: {
46 get_tree()->disconnect("node_removed", callable_mp(this, &Cast2DEditor::_node_removed));
47 } break;
48 }
49}
50
51void Cast2DEditor::_node_removed(Node *p_node) {
52 if (p_node == node) {
53 node = nullptr;
54 }
55}
56
57bool Cast2DEditor::forward_canvas_gui_input(const Ref<InputEvent> &p_event) {
58 if (!node || !node->is_visible_in_tree()) {
59 return false;
60 }
61
62 Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
63
64 Ref<InputEventMouseButton> mb = p_event;
65 if (mb.is_valid() && mb->get_button_index() == MouseButton::LEFT) {
66 Vector2 target_position = node->get("target_position");
67
68 if (mb->is_pressed()) {
69 if (xform.xform(target_position).distance_to(mb->get_position()) < 8) {
70 pressed = true;
71 original_target_position = target_position;
72
73 return true;
74 } else {
75 pressed = false;
76
77 return false;
78 }
79 } else if (pressed) {
80 EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
81 undo_redo->create_action(TTR("Set Target Position"));
82 undo_redo->add_do_property(node, "target_position", target_position);
83 undo_redo->add_do_method(canvas_item_editor, "update_viewport");
84 undo_redo->add_undo_property(node, "target_position", original_target_position);
85 undo_redo->add_undo_method(canvas_item_editor, "update_viewport");
86 undo_redo->commit_action();
87
88 pressed = false;
89
90 return true;
91 }
92 }
93
94 Ref<InputEventMouseMotion> mm = p_event;
95 if (mm.is_valid() && pressed) {
96 Vector2 point = canvas_item_editor->snap_point(canvas_item_editor->get_canvas_transform().affine_inverse().xform(mm->get_position()));
97 point = node->get_global_transform().affine_inverse().xform(point);
98
99 node->set("target_position", point);
100 canvas_item_editor->update_viewport();
101 node->notify_property_list_changed();
102
103 return true;
104 }
105
106 return false;
107}
108
109void Cast2DEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
110 if (!node || !node->is_visible_in_tree()) {
111 return;
112 }
113
114 Transform2D gt = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
115
116 const Ref<Texture2D> handle = get_editor_theme_icon(SNAME("EditorHandle"));
117 p_overlay->draw_texture(handle, gt.xform((Vector2)node->get("target_position")) - handle->get_size() / 2);
118}
119
120void Cast2DEditor::edit(Node2D *p_node) {
121 if (!canvas_item_editor) {
122 canvas_item_editor = CanvasItemEditor::get_singleton();
123 }
124
125 if (Object::cast_to<RayCast2D>(p_node) || Object::cast_to<ShapeCast2D>(p_node)) {
126 node = p_node;
127 } else {
128 node = nullptr;
129 }
130
131 canvas_item_editor->update_viewport();
132}
133
134///////////////////////
135
136void Cast2DEditorPlugin::edit(Object *p_object) {
137 cast_2d_editor->edit(Object::cast_to<Node2D>(p_object));
138}
139
140bool Cast2DEditorPlugin::handles(Object *p_object) const {
141 return Object::cast_to<RayCast2D>(p_object) != nullptr || Object::cast_to<ShapeCast2D>(p_object) != nullptr;
142}
143
144void Cast2DEditorPlugin::make_visible(bool p_visible) {
145 if (!p_visible) {
146 edit(nullptr);
147 }
148}
149
150Cast2DEditorPlugin::Cast2DEditorPlugin() {
151 cast_2d_editor = memnew(Cast2DEditor);
152 EditorNode::get_singleton()->get_gui_base()->add_child(cast_2d_editor);
153}
154