620 lines
17 KiB
C++
620 lines
17 KiB
C++
/*************************************************************************/
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/* abstract_polygon_2d_editor.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "abstract_polygon_2d_editor.h"
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#include "canvas_item_editor_plugin.h"
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bool AbstractPolygon2DEditor::_is_empty() const {
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if (!_get_node())
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return true;
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const int n = _get_polygon_count();
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for (int i = 0; i < n; i++) {
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Vector<Vector2> vertices = _get_polygon(i);
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if (vertices.size() != 0)
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return false;
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}
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return true;
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}
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int AbstractPolygon2DEditor::_get_polygon_count() const {
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return 1;
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}
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Variant AbstractPolygon2DEditor::_get_polygon(int p_idx) const {
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return _get_node()->get("polygon");
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}
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void AbstractPolygon2DEditor::_set_polygon(int p_idx, const Variant &p_polygon) const {
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_get_node()->set("polygon", p_polygon);
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}
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void AbstractPolygon2DEditor::_action_set_polygon(int p_idx, const Variant &p_previous, const Variant &p_polygon) {
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Node2D *node = _get_node();
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undo_redo->add_do_method(node, "set_polygon", p_polygon);
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undo_redo->add_undo_method(node, "set_polygon", p_previous);
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}
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Vector2 AbstractPolygon2DEditor::_get_offset(int p_idx) const {
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return Vector2(0, 0);
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}
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void AbstractPolygon2DEditor::_commit_action() {
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undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update");
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undo_redo->commit_action();
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}
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void AbstractPolygon2DEditor::_action_add_polygon(const Variant &p_polygon) {
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_action_set_polygon(0, p_polygon);
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}
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void AbstractPolygon2DEditor::_action_remove_polygon(int p_idx) {
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_action_set_polygon(p_idx, _get_polygon(p_idx), PoolVector<Vector2>());
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}
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void AbstractPolygon2DEditor::_action_set_polygon(int p_idx, const Variant &p_polygon) {
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_action_set_polygon(p_idx, _get_polygon(p_idx), p_polygon);
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}
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bool AbstractPolygon2DEditor::_has_resource() const {
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return true;
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}
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void AbstractPolygon2DEditor::_create_resource() {
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}
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void AbstractPolygon2DEditor::_menu_option(int p_option) {
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switch (p_option) {
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case MODE_CREATE: {
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mode = MODE_CREATE;
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button_create->set_pressed(true);
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button_edit->set_pressed(false);
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} break;
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case MODE_EDIT: {
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mode = MODE_EDIT;
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button_create->set_pressed(false);
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button_edit->set_pressed(true);
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} break;
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}
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}
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void AbstractPolygon2DEditor::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_READY: {
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button_create->set_icon(get_icon("Edit", "EditorIcons"));
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button_edit->set_icon(get_icon("MovePoint", "EditorIcons"));
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button_edit->set_pressed(true);
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get_tree()->connect("node_removed", this, "_node_removed");
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create_resource->connect("confirmed", this, "_create_resource");
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} break;
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case NOTIFICATION_PHYSICS_PROCESS: {
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} break;
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}
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}
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void AbstractPolygon2DEditor::_node_removed(Node *p_node) {
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if (p_node == _get_node()) {
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edit(NULL);
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hide();
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canvas_item_editor->get_viewport_control()->update();
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}
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}
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void AbstractPolygon2DEditor::_wip_close() {
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if (wip.size() >= 3) {
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undo_redo->create_action(TTR("Create Poly"));
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_action_add_polygon(wip);
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_commit_action();
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mode = MODE_EDIT;
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button_edit->set_pressed(true);
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button_create->set_pressed(false);
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}
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wip.clear();
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wip_active = false;
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edited_point = -1;
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}
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bool AbstractPolygon2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
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if (!_get_node())
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return false;
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Ref<InputEventMouseButton> mb = p_event;
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if (!_has_resource()) {
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if (mb.is_valid() && mb->get_button_index() == 1 && mb->is_pressed()) {
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create_resource->set_text(String("No polygon resource on this node.\nCreate and assign one?"));
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create_resource->popup_centered_minsize();
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}
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return (mb.is_valid() && mb->get_button_index() == 1);
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}
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if (mb.is_valid()) {
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Transform2D xform = canvas_item_editor->get_canvas_transform() * _get_node()->get_global_transform();
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Vector2 gpoint = mb->get_position();
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Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
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cpoint = canvas_item_editor->snap_point(cpoint);
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cpoint = _get_node()->get_global_transform().affine_inverse().xform(cpoint);
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//first check if a point is to be added (segment split)
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real_t grab_threshold = EDITOR_DEF("editors/poly_editor/point_grab_radius", 8);
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if (mode == MODE_CREATE) {
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if (mb->get_button_index() == BUTTON_LEFT && mb->is_pressed()) {
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if (!wip_active) {
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wip.clear();
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wip.push_back(cpoint);
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wip_active = true;
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edited_point_pos = cpoint;
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edited_polygon = -1;
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edited_point = 1;
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canvas_item_editor->get_viewport_control()->update();
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return true;
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} else {
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if (wip.size() > 1 && xform.xform(wip[0]).distance_to(gpoint) < grab_threshold) {
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//wip closed
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_wip_close();
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return true;
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} else {
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wip.push_back(cpoint);
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edited_point = wip.size();
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canvas_item_editor->get_viewport_control()->update();
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return true;
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//add wip point
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}
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}
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} else if (mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed() && wip_active) {
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_wip_close();
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}
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} else if (mode == MODE_EDIT) {
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if (mb->get_button_index() == BUTTON_LEFT) {
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if (mb->is_pressed()) {
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if (mb->get_control()) {
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const int n_polygons = _get_polygon_count();
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if (n_polygons >= 1) {
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Vector<Vector2> vertices = _get_polygon(n_polygons - 1);
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if (vertices.size() < 3) {
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vertices.push_back(cpoint);
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undo_redo->create_action(TTR("Edit Poly"));
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_action_set_polygon(n_polygons - 1, vertices);
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_commit_action();
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return true;
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}
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}
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//search edges
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int closest_poly = -1;
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int closest_idx = -1;
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Vector2 closest_pos;
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real_t closest_dist = 1e10;
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for (int j = 0; j < n_polygons; j++) {
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PoolVector<Vector2> points = _get_polygon(j);
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const Vector2 offset = _get_offset(j);
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const int n_points = points.size();
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for (int i = 0; i < n_points; i++) {
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Vector2 p[2] = { xform.xform(points[i] + offset),
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xform.xform(points[(i + 1) % n_points] + offset) };
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Vector2 cp = Geometry::get_closest_point_to_segment_2d(gpoint, p);
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if (cp.distance_squared_to(points[0]) < CMP_EPSILON2 || cp.distance_squared_to(points[1]) < CMP_EPSILON2)
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continue; //not valid to reuse point
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real_t d = cp.distance_to(gpoint);
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if (d < closest_dist && d < grab_threshold) {
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closest_poly = j;
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closest_dist = d;
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closest_pos = cp;
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closest_idx = i;
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}
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}
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}
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if (closest_idx >= 0) {
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Vector<Vector2> vertices = _get_polygon(closest_poly);
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pre_move_edit = vertices;
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vertices.insert(closest_idx + 1, xform.affine_inverse().xform(closest_pos));
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edited_point = closest_idx + 1;
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edited_polygon = closest_poly;
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edited_point_pos = xform.affine_inverse().xform(closest_pos);
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undo_redo->create_action(TTR("Insert Point"));
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_action_set_polygon(closest_poly, vertices);
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_commit_action();
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return true;
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}
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} else {
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//look for points to move
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int closest_poly = -1;
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int closest_idx = -1;
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Vector2 closest_pos;
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real_t closest_dist = 1e10;
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const int n_polygons = _get_polygon_count();
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for (int j = 0; j < n_polygons; j++) {
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PoolVector<Vector2> points = _get_polygon(j);
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const Vector2 offset = _get_offset(j);
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const int n_points = points.size();
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for (int i = 0; i < n_points; i++) {
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Vector2 cp = xform.xform(points[i] + offset);
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real_t d = cp.distance_to(gpoint);
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if (d < closest_dist && d < grab_threshold) {
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closest_poly = j;
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closest_dist = d;
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closest_pos = cp;
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closest_idx = i;
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}
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}
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}
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if (closest_idx >= 0) {
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pre_move_edit = _get_polygon(closest_poly);
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edited_polygon = closest_poly;
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edited_point = closest_idx;
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edited_point_pos = xform.affine_inverse().xform(closest_pos);
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canvas_item_editor->get_viewport_control()->update();
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return true;
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}
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}
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} else {
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if (edited_point != -1) {
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//apply
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Vector<Vector2> vertices = _get_polygon(edited_polygon);
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ERR_FAIL_INDEX_V(edited_point, vertices.size(), false);
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vertices[edited_point] = edited_point_pos - _get_offset(edited_polygon);
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undo_redo->create_action(TTR("Edit Poly"));
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_action_set_polygon(edited_polygon, pre_move_edit, vertices);
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_commit_action();
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edited_point = -1;
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return true;
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}
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}
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} else if (mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed() && edited_point == -1) {
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int closest_poly = -1;
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int closest_idx = -1;
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Vector2 closest_pos;
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real_t closest_dist = 1e10;
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const int n_polygons = _get_polygon_count();
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for (int j = 0; j < n_polygons; j++) {
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PoolVector<Vector2> points = _get_polygon(j);
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const int n_points = points.size();
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const Vector2 offset = _get_offset(j);
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for (int i = 0; i < n_points; i++) {
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Vector2 cp = xform.xform(points[i] + offset);
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real_t d = cp.distance_to(gpoint);
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if (d < closest_dist && d < grab_threshold) {
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closest_poly = j;
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closest_dist = d;
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closest_pos = cp;
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closest_idx = i;
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}
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}
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}
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if (closest_idx >= 0) {
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PoolVector<Vector2> vertices = _get_polygon(closest_poly);
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if (vertices.size() > 3) {
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vertices.remove(closest_idx);
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undo_redo->create_action(TTR("Edit Poly (Remove Point)"));
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_action_set_polygon(closest_poly, vertices);
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_commit_action();
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} else {
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undo_redo->create_action(TTR("Remove Poly And Point"));
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_action_remove_polygon(closest_poly);
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_commit_action();
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}
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if (_is_empty())
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_menu_option(MODE_CREATE);
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return true;
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}
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}
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}
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}
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Ref<InputEventMouseMotion> mm = p_event;
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if (mm.is_valid()) {
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if (edited_point != -1 && (wip_active || (mm->get_button_mask() & BUTTON_MASK_LEFT))) {
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Vector2 gpoint = mm->get_position();
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Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint);
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cpoint = canvas_item_editor->snap_point(cpoint);
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edited_point_pos = _get_node()->get_global_transform().affine_inverse().xform(cpoint);
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if (!wip_active) {
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Vector<Vector2> vertices = _get_polygon(edited_polygon);
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ERR_FAIL_INDEX_V(edited_point, vertices.size(), false);
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vertices[edited_point] = edited_point_pos - _get_offset(edited_polygon);
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_set_polygon(edited_polygon, vertices);
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}
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canvas_item_editor->get_viewport_control()->update();
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}
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}
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return false;
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}
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void AbstractPolygon2DEditor::_canvas_draw() {
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if (!_get_node())
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return;
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Control *vpc = canvas_item_editor->get_viewport_control();
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Transform2D xform = canvas_item_editor->get_canvas_transform() * _get_node()->get_global_transform();
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Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
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const int n_polygons = _get_polygon_count();
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for (int j = -1; j < n_polygons; j++) {
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if (wip_active && wip_destructive && j != -1)
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continue;
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PoolVector<Vector2> points;
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Vector2 offset;
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if (wip_active && j == edited_polygon) {
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points = Variant(wip);
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offset = Vector2(0, 0);
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} else {
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if (j == -1)
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continue;
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points = _get_polygon(j);
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offset = _get_offset(j);
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}
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if (!wip_active && j == edited_polygon && edited_point >= 0 && EDITOR_DEF("editors/poly_editor/show_previous_outline", true)) {
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const Color col = Color(0.5, 0.5, 0.5); // FIXME polygon->get_outline_color();
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const int n = pre_move_edit.size();
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for (int i = 0; i < n; i++) {
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Vector2 p, p2;
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p = pre_move_edit[i] + offset;
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p2 = pre_move_edit[(i + 1) % n] + offset;
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Vector2 point = xform.xform(p);
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Vector2 next_point = xform.xform(p2);
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vpc->draw_line(point, next_point, col, 2);
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}
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}
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const int n_points = points.size();
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const Color col = Color(1, 0.3, 0.1, 0.8);
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for (int i = 0; i < n_points; i++) {
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Vector2 p, p2;
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p = (j == edited_polygon && i == edited_point) ? edited_point_pos : (points[i] + offset);
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if (j == edited_polygon && ((wip_active && i == n_points - 1) || (((i + 1) % n_points) == edited_point)))
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p2 = edited_point_pos;
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else
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p2 = points[(i + 1) % n_points] + offset;
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Vector2 point = xform.xform(p);
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Vector2 next_point = xform.xform(p2);
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vpc->draw_line(point, next_point, col, 2);
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vpc->draw_texture(handle, point - handle->get_size() * 0.5);
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}
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}
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}
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void AbstractPolygon2DEditor::edit(Node *p_polygon) {
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if (!canvas_item_editor) {
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canvas_item_editor = CanvasItemEditor::get_singleton();
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}
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if (p_polygon) {
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_set_node(p_polygon);
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//Enable the pencil tool if the polygon is empty
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if (_is_empty())
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_menu_option(MODE_CREATE);
|
|
|
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if (!canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw"))
|
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canvas_item_editor->get_viewport_control()->connect("draw", this, "_canvas_draw");
|
|
|
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wip.clear();
|
|
wip_active = false;
|
|
edited_point = -1;
|
|
|
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canvas_item_editor->get_viewport_control()->update();
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|
|
|
} else {
|
|
|
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_set_node(NULL);
|
|
|
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if (canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw"))
|
|
canvas_item_editor->get_viewport_control()->disconnect("draw", this, "_canvas_draw");
|
|
}
|
|
}
|
|
|
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void AbstractPolygon2DEditor::_bind_methods() {
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|
|
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ClassDB::bind_method(D_METHOD("_canvas_draw"), &AbstractPolygon2DEditor::_canvas_draw);
|
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ClassDB::bind_method(D_METHOD("_node_removed"), &AbstractPolygon2DEditor::_node_removed);
|
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ClassDB::bind_method(D_METHOD("_menu_option"), &AbstractPolygon2DEditor::_menu_option);
|
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ClassDB::bind_method(D_METHOD("_create_resource"), &AbstractPolygon2DEditor::_create_resource);
|
|
}
|
|
|
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AbstractPolygon2DEditor::AbstractPolygon2DEditor(EditorNode *p_editor, bool p_wip_destructive) {
|
|
|
|
canvas_item_editor = NULL;
|
|
editor = p_editor;
|
|
undo_redo = editor->get_undo_redo();
|
|
|
|
wip_active = false;
|
|
edited_polygon = -1;
|
|
wip_destructive = p_wip_destructive;
|
|
|
|
add_child(memnew(VSeparator));
|
|
button_create = memnew(ToolButton);
|
|
add_child(button_create);
|
|
button_create->connect("pressed", this, "_menu_option", varray(MODE_CREATE));
|
|
button_create->set_toggle_mode(true);
|
|
button_create->set_tooltip(TTR("Create a new polygon from scratch."));
|
|
|
|
button_edit = memnew(ToolButton);
|
|
add_child(button_edit);
|
|
button_edit->connect("pressed", this, "_menu_option", varray(MODE_EDIT));
|
|
button_edit->set_toggle_mode(true);
|
|
button_edit->set_tooltip(TTR("Edit existing polygon:\nLMB: Move Point.\nCtrl+LMB: Split Segment.\nRMB: Erase Point."));
|
|
|
|
create_resource = memnew(ConfirmationDialog);
|
|
add_child(create_resource);
|
|
create_resource->get_ok()->set_text(TTR("Create"));
|
|
|
|
mode = MODE_EDIT;
|
|
}
|
|
|
|
void AbstractPolygon2DEditorPlugin::edit(Object *p_object) {
|
|
|
|
polygon_editor->edit(Object::cast_to<Node>(p_object));
|
|
}
|
|
|
|
bool AbstractPolygon2DEditorPlugin::handles(Object *p_object) const {
|
|
|
|
return p_object->is_class(klass);
|
|
}
|
|
|
|
void AbstractPolygon2DEditorPlugin::make_visible(bool p_visible) {
|
|
|
|
if (p_visible) {
|
|
|
|
polygon_editor->show();
|
|
} else {
|
|
|
|
polygon_editor->hide();
|
|
polygon_editor->edit(NULL);
|
|
}
|
|
}
|
|
|
|
AbstractPolygon2DEditorPlugin::AbstractPolygon2DEditorPlugin(EditorNode *p_node, AbstractPolygon2DEditor *p_polygon_editor, String p_class) {
|
|
|
|
editor = p_node;
|
|
polygon_editor = p_polygon_editor;
|
|
klass = p_class;
|
|
CanvasItemEditor::get_singleton()->add_control_to_menu_panel(polygon_editor);
|
|
|
|
polygon_editor->hide();
|
|
}
|
|
|
|
AbstractPolygon2DEditorPlugin::~AbstractPolygon2DEditorPlugin() {
|
|
}
|