diff options
Diffstat (limited to 'editor/plugins/abstract_polygon_2d_editor.cpp')
| -rw-r--r-- | editor/plugins/abstract_polygon_2d_editor.cpp | 619 |
1 files changed, 619 insertions, 0 deletions
diff --git a/editor/plugins/abstract_polygon_2d_editor.cpp b/editor/plugins/abstract_polygon_2d_editor.cpp new file mode 100644 index 0000000000..2fd74d529e --- /dev/null +++ b/editor/plugins/abstract_polygon_2d_editor.cpp @@ -0,0 +1,619 @@ +/*************************************************************************/ +/* abstract_polygon_2d_editor.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2017 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. */ +/*************************************************************************/ +#include "abstract_polygon_2d_editor.h" + +#include "canvas_item_editor_plugin.h" + +bool AbstractPolygon2DEditor::_is_empty() const { + + if (!_get_node()) + return true; + + const int n = _get_polygon_count(); + + for (int i = 0; i < n; i++) { + + Vector<Vector2> vertices = _get_polygon(i); + + if (vertices.size() != 0) + return false; + } + + return true; +} + +int AbstractPolygon2DEditor::_get_polygon_count() const { + + return 1; +} + +Variant AbstractPolygon2DEditor::_get_polygon(int p_idx) const { + + return _get_node()->get("polygon"); +} + +void AbstractPolygon2DEditor::_set_polygon(int p_idx, const Variant &p_polygon) const { + + _get_node()->set("polygon", p_polygon); +} + +void AbstractPolygon2DEditor::_action_set_polygon(int p_idx, const Variant &p_previous, const Variant &p_polygon) { + + Node2D *node = _get_node(); + undo_redo->add_do_method(node, "set_polygon", p_polygon); + undo_redo->add_undo_method(node, "set_polygon", p_previous); +} + +Vector2 AbstractPolygon2DEditor::_get_offset(int p_idx) const { + + return Vector2(0, 0); +} + +void AbstractPolygon2DEditor::_commit_action() { + + undo_redo->add_do_method(canvas_item_editor->get_viewport_control(), "update"); + undo_redo->add_undo_method(canvas_item_editor->get_viewport_control(), "update"); + undo_redo->commit_action(); +} + +void AbstractPolygon2DEditor::_action_add_polygon(const Variant &p_polygon) { + + _action_set_polygon(0, p_polygon); +} + +void AbstractPolygon2DEditor::_action_remove_polygon(int p_idx) { + + _action_set_polygon(p_idx, _get_polygon(p_idx), PoolVector<Vector2>()); +} + +void AbstractPolygon2DEditor::_action_set_polygon(int p_idx, const Variant &p_polygon) { + + _action_set_polygon(p_idx, _get_polygon(p_idx), p_polygon); +} + +bool AbstractPolygon2DEditor::_has_resource() const { + + return true; +} + +void AbstractPolygon2DEditor::_create_resource() { +} + +void AbstractPolygon2DEditor::_menu_option(int p_option) { + + switch (p_option) { + + case MODE_CREATE: { + + mode = MODE_CREATE; + button_create->set_pressed(true); + button_edit->set_pressed(false); + } break; + case MODE_EDIT: { + + mode = MODE_EDIT; + button_create->set_pressed(false); + button_edit->set_pressed(true); + } break; + } +} + +void AbstractPolygon2DEditor::_notification(int p_what) { + + switch (p_what) { + + case NOTIFICATION_READY: { + + button_create->set_icon(get_icon("Edit", "EditorIcons")); + button_edit->set_icon(get_icon("MovePoint", "EditorIcons")); + button_edit->set_pressed(true); + + get_tree()->connect("node_removed", this, "_node_removed"); + + create_resource->connect("confirmed", this, "_create_resource"); + + } break; + case NOTIFICATION_PHYSICS_PROCESS: { + + } break; + } +} + +void AbstractPolygon2DEditor::_node_removed(Node *p_node) { + + if (p_node == _get_node()) { + edit(NULL); + hide(); + + canvas_item_editor->get_viewport_control()->update(); + } +} + +void AbstractPolygon2DEditor::_wip_close() { + + if (wip.size() >= 3) { + + undo_redo->create_action(TTR("Create Poly")); + _action_add_polygon(wip); + _commit_action(); + + mode = MODE_EDIT; + button_edit->set_pressed(true); + button_create->set_pressed(false); + } + + wip.clear(); + wip_active = false; + edited_point = -1; +} + +bool AbstractPolygon2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) { + + if (!_get_node()) + return false; + + Ref<InputEventMouseButton> mb = p_event; + + if (!_has_resource()) { + + if (mb.is_valid() && mb->get_button_index() == 1 && mb->is_pressed()) { + create_resource->set_text(String("No polygon resource on this node.\nCreate and assign one?")); + create_resource->popup_centered_minsize(); + } + return (mb.is_valid() && mb->get_button_index() == 1); + } + + if (mb.is_valid()) { + + Transform2D xform = canvas_item_editor->get_canvas_transform() * _get_node()->get_global_transform(); + + Vector2 gpoint = mb->get_position(); + Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint); + cpoint = canvas_item_editor->snap_point(cpoint); + cpoint = _get_node()->get_global_transform().affine_inverse().xform(cpoint); + + //first check if a point is to be added (segment split) + real_t grab_threshold = EDITOR_DEF("editors/poly_editor/point_grab_radius", 8); + + if (mode == MODE_CREATE) { + + if (mb->get_button_index() == BUTTON_LEFT && mb->is_pressed()) { + + if (!wip_active) { + + wip.clear(); + wip.push_back(cpoint); + wip_active = true; + edited_point_pos = cpoint; + edited_polygon = -1; + edited_point = 1; + canvas_item_editor->get_viewport_control()->update(); + return true; + } else { + + if (wip.size() > 1 && xform.xform(wip[0]).distance_to(gpoint) < grab_threshold) { + //wip closed + _wip_close(); + + return true; + } else { + + wip.push_back(cpoint); + edited_point = wip.size(); + canvas_item_editor->get_viewport_control()->update(); + return true; + + //add wip point + } + } + } else if (mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed() && wip_active) { + _wip_close(); + } + } else if (mode == MODE_EDIT) { + + if (mb->get_button_index() == BUTTON_LEFT) { + + if (mb->is_pressed()) { + + if (mb->get_control()) { + + const int n_polygons = _get_polygon_count(); + + if (n_polygons >= 1) { + + Vector<Vector2> vertices = _get_polygon(n_polygons - 1); + + if (vertices.size() < 3) { + + vertices.push_back(cpoint); + undo_redo->create_action(TTR("Edit Poly")); + _action_set_polygon(n_polygons - 1, vertices); + _commit_action(); + return true; + } + } + + //search edges + int closest_poly = -1; + int closest_idx = -1; + Vector2 closest_pos; + real_t closest_dist = 1e10; + + for (int j = 0; j < n_polygons; j++) { + + PoolVector<Vector2> points = _get_polygon(j); + const Vector2 offset = _get_offset(j); + const int n_points = points.size(); + + for (int i = 0; i < n_points; i++) { + + Vector2 p[2] = { xform.xform(points[i] + offset), + xform.xform(points[(i + 1) % n_points] + offset) }; + + Vector2 cp = Geometry::get_closest_point_to_segment_2d(gpoint, p); + if (cp.distance_squared_to(points[0]) < CMP_EPSILON2 || cp.distance_squared_to(points[1]) < CMP_EPSILON2) + continue; //not valid to reuse point + + real_t d = cp.distance_to(gpoint); + if (d < closest_dist && d < grab_threshold) { + closest_poly = j; + closest_dist = d; + closest_pos = cp; + closest_idx = i; + } + } + } + + if (closest_idx >= 0) { + + Vector<Vector2> vertices = _get_polygon(closest_poly); + pre_move_edit = vertices; + vertices.insert(closest_idx + 1, xform.affine_inverse().xform(closest_pos)); + edited_point = closest_idx + 1; + edited_polygon = closest_poly; + edited_point_pos = xform.affine_inverse().xform(closest_pos); + + undo_redo->create_action(TTR("Insert Point")); + _action_set_polygon(closest_poly, vertices); + _commit_action(); + + return true; + } + } else { + + //look for points to move + int closest_poly = -1; + int closest_idx = -1; + Vector2 closest_pos; + real_t closest_dist = 1e10; + + const int n_polygons = _get_polygon_count(); + + for (int j = 0; j < n_polygons; j++) { + + PoolVector<Vector2> points = _get_polygon(j); + const Vector2 offset = _get_offset(j); + const int n_points = points.size(); + + for (int i = 0; i < n_points; i++) { + + Vector2 cp = xform.xform(points[i] + offset); + + real_t d = cp.distance_to(gpoint); + if (d < closest_dist && d < grab_threshold) { + closest_poly = j; + closest_dist = d; + closest_pos = cp; + closest_idx = i; + } + } + } + + if (closest_idx >= 0) { + + pre_move_edit = _get_polygon(closest_poly); + edited_polygon = closest_poly; + edited_point = closest_idx; + edited_point_pos = xform.affine_inverse().xform(closest_pos); + canvas_item_editor->get_viewport_control()->update(); + return true; + } + } + } else { + + if (edited_point != -1) { + + //apply + + Vector<Vector2> vertices = _get_polygon(edited_polygon); + ERR_FAIL_INDEX_V(edited_point, vertices.size(), false); + vertices[edited_point] = edited_point_pos - _get_offset(edited_polygon); + + undo_redo->create_action(TTR("Edit Poly")); + _action_set_polygon(edited_polygon, pre_move_edit, vertices); + _commit_action(); + + edited_point = -1; + return true; + } + } + } else if (mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed() && edited_point == -1) { + + int closest_poly = -1; + int closest_idx = -1; + Vector2 closest_pos; + real_t closest_dist = 1e10; + const int n_polygons = _get_polygon_count(); + + for (int j = 0; j < n_polygons; j++) { + + PoolVector<Vector2> points = _get_polygon(j); + const int n_points = points.size(); + const Vector2 offset = _get_offset(j); + + for (int i = 0; i < n_points; i++) { + + Vector2 cp = xform.xform(points[i] + offset); + + real_t d = cp.distance_to(gpoint); + if (d < closest_dist && d < grab_threshold) { + closest_poly = j; + closest_dist = d; + closest_pos = cp; + closest_idx = i; + } + } + } + + if (closest_idx >= 0) { + + PoolVector<Vector2> vertices = _get_polygon(closest_poly); + + if (vertices.size() > 3) { + + vertices.remove(closest_idx); + + undo_redo->create_action(TTR("Edit Poly (Remove Point)")); + _action_set_polygon(closest_poly, vertices); + _commit_action(); + } else { + + undo_redo->create_action(TTR("Remove Poly And Point")); + _action_remove_polygon(closest_poly); + _commit_action(); + } + + if (_is_empty()) + _menu_option(MODE_CREATE); + return true; + } + } + } + } + + Ref<InputEventMouseMotion> mm = p_event; + + if (mm.is_valid()) { + + if (edited_point != -1 && (wip_active || (mm->get_button_mask() & BUTTON_MASK_LEFT))) { + + Vector2 gpoint = mm->get_position(); + Vector2 cpoint = canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpoint); + cpoint = canvas_item_editor->snap_point(cpoint); + edited_point_pos = _get_node()->get_global_transform().affine_inverse().xform(cpoint); + + if (!wip_active) { + + Vector<Vector2> vertices = _get_polygon(edited_polygon); + ERR_FAIL_INDEX_V(edited_point, vertices.size(), false); + vertices[edited_point] = edited_point_pos - _get_offset(edited_polygon); + _set_polygon(edited_polygon, vertices); + } + + canvas_item_editor->get_viewport_control()->update(); + } + } + + return false; +} + +void AbstractPolygon2DEditor::_canvas_draw() { + + if (!_get_node()) + return; + + Control *vpc = canvas_item_editor->get_viewport_control(); + + Transform2D xform = canvas_item_editor->get_canvas_transform() * _get_node()->get_global_transform(); + Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons"); + const int n_polygons = _get_polygon_count(); + + for (int j = -1; j < n_polygons; j++) { + + if (wip_active && wip_destructive && j != -1) + continue; + + PoolVector<Vector2> points; + Vector2 offset; + + if (wip_active && j == edited_polygon) { + + points = Variant(wip); + offset = Vector2(0, 0); + } else { + + if (j == -1) + continue; + points = _get_polygon(j); + offset = _get_offset(j); + } + + if (!wip_active && j == edited_polygon && edited_point >= 0 && EDITOR_DEF("editors/poly_editor/show_previous_outline", true)) { + + const Color col = Color(0.5, 0.5, 0.5); // FIXME polygon->get_outline_color(); + const int n = pre_move_edit.size(); + for (int i = 0; i < n; i++) { + + Vector2 p, p2; + p = pre_move_edit[i] + offset; + p2 = pre_move_edit[(i + 1) % n] + offset; + + Vector2 point = xform.xform(p); + Vector2 next_point = xform.xform(p2); + + vpc->draw_line(point, next_point, col, 2); + } + } + + const int n_points = points.size(); + const Color col = Color(1, 0.3, 0.1, 0.8); + + for (int i = 0; i < n_points; i++) { + + Vector2 p, p2; + p = (j == edited_polygon && i == edited_point) ? edited_point_pos : (points[i] + offset); + if (j == edited_polygon && ((wip_active && i == n_points - 1) || (((i + 1) % n_points) == edited_point))) + p2 = edited_point_pos; + else + p2 = points[(i + 1) % n_points] + offset; + + Vector2 point = xform.xform(p); + Vector2 next_point = xform.xform(p2); + + vpc->draw_line(point, next_point, col, 2); + vpc->draw_texture(handle, point - handle->get_size() * 0.5); + } + } +} + +void AbstractPolygon2DEditor::edit(Node *p_polygon) { + + if (!canvas_item_editor) { + canvas_item_editor = CanvasItemEditor::get_singleton(); + } + + if (p_polygon) { + + _set_node(p_polygon); + + //Enable the pencil tool if the polygon is empty + if (_is_empty()) + _menu_option(MODE_CREATE); + + if (!canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw")) + canvas_item_editor->get_viewport_control()->connect("draw", this, "_canvas_draw"); + + wip.clear(); + wip_active = false; + edited_point = -1; + + canvas_item_editor->get_viewport_control()->update(); + + } else { + + _set_node(NULL); + + if (canvas_item_editor->get_viewport_control()->is_connected("draw", this, "_canvas_draw")) + canvas_item_editor->get_viewport_control()->disconnect("draw", this, "_canvas_draw"); + } +} + +void AbstractPolygon2DEditor::_bind_methods() { + + ClassDB::bind_method(D_METHOD("_canvas_draw"), &AbstractPolygon2DEditor::_canvas_draw); + ClassDB::bind_method(D_METHOD("_node_removed"), &AbstractPolygon2DEditor::_node_removed); + ClassDB::bind_method(D_METHOD("_menu_option"), &AbstractPolygon2DEditor::_menu_option); + ClassDB::bind_method(D_METHOD("_create_resource"), &AbstractPolygon2DEditor::_create_resource); +} + +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() { +} |