Merge pull request #24165 from YeldhamDev/light_occluder_reuse_polygon

Make LightOccluder2D Editor use the AbstractPolygon Editor instead of its own

2 files changed, 62 insertions, 435 deletions

diff --git a/editor/plugins/light_occluder_2d_editor_plugin.cpp b/editor/plugins/light_occluder_2d_editor_plugin.cpp
index 6a16cf0989..646883fbda 100644
--- a/editor/plugins/light_occluder_2d_editor_plugin.cpp
+++ b/editor/plugins/light_occluder_2d_editor_plugin.cpp
@@ -30,425 +30,91 @@
 
 #include "light_occluder_2d_editor_plugin.h"
 
-#include "canvas_item_editor_plugin.h"
-#include "core/os/file_access.h"
-#include "editor/editor_settings.h"
+Ref<OccluderPolygon2D> LightOccluder2DEditor::_ensure_occluder() const {
 
-void LightOccluder2DEditor::_notification(int p_what) {
+	Ref<OccluderPolygon2D> occluder = node->get_occluder_polygon();
+	if (!occluder.is_valid()) {
 
-	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_poly->connect("confirmed", this, "_create_poly");
-
-		} break;
-		case NOTIFICATION_PHYSICS_PROCESS: {
-
-		} break;
-	}
-}
-void LightOccluder2DEditor::_node_removed(Node *p_node) {
-
-	if (p_node == node) {
-		node = NULL;
-		hide();
-		canvas_item_editor->update_viewport();
+		occluder = Ref<OccluderPolygon2D>(memnew(OccluderPolygon2D));
+		node->set_occluder_polygon(occluder);
 	}
+	return occluder;
 }
 
-void LightOccluder2DEditor::_menu_option(int p_option) {
+Node2D *LightOccluder2DEditor::_get_node() const {
 
-	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;
-	}
+	return node;
 }
 
-void LightOccluder2DEditor::_wip_close(bool p_closed) {
-
-	undo_redo->create_action(TTR("Create Poly"));
-	undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_polygon", node->get_occluder_polygon()->get_polygon());
-	undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_polygon", wip);
-	undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_closed", node->get_occluder_polygon()->is_closed());
-	undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_closed", p_closed);
+void LightOccluder2DEditor::_set_node(Node *p_polygon) {
 
-	undo_redo->add_do_method(canvas_item_editor, "update_viewport");
-	undo_redo->add_undo_method(canvas_item_editor, "update_viewport");
-	undo_redo->commit_action();
-	wip.clear();
-	wip_active = false;
-	mode = MODE_EDIT;
-	button_edit->set_pressed(true);
-	button_create->set_pressed(false);
-	edited_point = -1;
+	node = Object::cast_to<LightOccluder2D>(p_polygon);
 }
 
-bool LightOccluder2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
+bool LightOccluder2DEditor::_is_line() const {
 
-	if (!node)
+	Ref<OccluderPolygon2D> occluder = node->get_occluder_polygon();
+	if (occluder.is_valid())
+		return !occluder->is_closed();
+	else
 		return false;
-
-	if (node->get_occluder_polygon().is_null()) {
-		Ref<InputEventMouseButton> mb = p_event;
-		if (mb.is_valid() && mb->get_button_index() == 1 && mb->is_pressed()) {
-			create_poly->set_text(TTR("No OccluderPolygon2D resource on this node.\nCreate and assign one?"));
-			create_poly->popup_centered_minsize();
-		}
-		return (mb.is_valid() && mb->get_button_index() == 1);
-	}
-
-	Ref<InputEventMouseButton> mb = p_event;
-
-	if (mb.is_valid()) {
-
-		Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
-
-		Vector2 gpoint = mb->get_position();
-		Vector2 cpoint = node->get_global_transform().affine_inverse().xform(canvas_item_editor->snap_point(canvas_item_editor->get_canvas_transform().affine_inverse().xform(mb->get_position())));
-
-		Vector<Vector2> poly = Variant(node->get_occluder_polygon()->get_polygon());
-
-		//first check if a point is to be added (segment split)
-		real_t grab_threshold = EDITOR_DEF("editors/poly_editor/point_grab_radius", 8);
-
-		switch (mode) {
-
-			case 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;
-						canvas_item_editor->update_viewport();
-						edited_point = 1;
-						return true;
-					} else {
-
-						if (wip.size() > 1 && xform.xform(wip[0]).distance_to(gpoint) < grab_threshold) {
-							//wip closed
-							_wip_close(true);
-
-							return true;
-						} else if (wip.size() > 1 && xform.xform(wip[wip.size() - 1]).distance_to(gpoint) < grab_threshold) {
-							//wip closed
-							_wip_close(false);
-							return true;
-
-						} else {
-
-							wip.push_back(cpoint);
-							edited_point = wip.size();
-							canvas_item_editor->update_viewport();
-							return true;
-
-							//add wip point
-						}
-					}
-				} else if (mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed() && wip_active) {
-					_wip_close(true);
-				}
-
-			} break;
-
-			case MODE_EDIT: {
-
-				if (mb->get_button_index() == BUTTON_LEFT) {
-					if (mb->is_pressed()) {
-
-						if (mb->get_control()) {
-
-							if (poly.size() < 3) {
-
-								undo_redo->create_action(TTR("Edit Poly"));
-								undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
-								poly.push_back(cpoint);
-								undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
-								undo_redo->add_do_method(canvas_item_editor, "update_viewport");
-								undo_redo->add_undo_method(canvas_item_editor, "update_viewport");
-								undo_redo->commit_action();
-								return true;
-							}
-
-							//search edges
-							int closest_idx = -1;
-							Vector2 closest_pos;
-							real_t closest_dist = 1e10;
-							for (int i = 0; i < poly.size(); i++) {
-
-								Vector2 points[2] = { xform.xform(poly[i]),
-									xform.xform(poly[(i + 1) % poly.size()]) };
-
-								Vector2 cp = Geometry::get_closest_point_to_segment_2d(gpoint, points);
-								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_dist = d;
-									closest_pos = cp;
-									closest_idx = i;
-								}
-							}
-
-							if (closest_idx >= 0) {
-
-								pre_move_edit = poly;
-								poly.insert(closest_idx + 1, xform.affine_inverse().xform(closest_pos));
-								edited_point = closest_idx + 1;
-								edited_point_pos = xform.affine_inverse().xform(closest_pos);
-								node->get_occluder_polygon()->set_polygon(Variant(poly));
-								canvas_item_editor->update_viewport();
-								return true;
-							}
-						} else {
-
-							//look for points to move
-
-							int closest_idx = -1;
-							Vector2 closest_pos;
-							real_t closest_dist = 1e10;
-							for (int i = 0; i < poly.size(); i++) {
-
-								Vector2 cp = xform.xform(poly[i]);
-
-								real_t d = cp.distance_to(gpoint);
-								if (d < closest_dist && d < grab_threshold) {
-									closest_dist = d;
-									closest_pos = cp;
-									closest_idx = i;
-								}
-							}
-
-							if (closest_idx >= 0) {
-
-								pre_move_edit = poly;
-								edited_point = closest_idx;
-								edited_point_pos = xform.affine_inverse().xform(closest_pos);
-								canvas_item_editor->update_viewport();
-								return true;
-							}
-						}
-					} else {
-
-						if (edited_point != -1) {
-
-							//apply
-
-							ERR_FAIL_INDEX_V(edited_point, poly.size(), false);
-							poly.write[edited_point] = edited_point_pos;
-							undo_redo->create_action(TTR("Edit Poly"));
-							undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
-							undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_polygon", pre_move_edit);
-							undo_redo->add_do_method(canvas_item_editor, "update_viewport");
-							undo_redo->add_undo_method(canvas_item_editor, "update_viewport");
-							undo_redo->commit_action();
-
-							edited_point = -1;
-							return true;
-						}
-					}
-				} else if (mb->get_button_index() == BUTTON_RIGHT && mb->is_pressed() && edited_point == -1) {
-
-					int closest_idx = -1;
-					Vector2 closest_pos;
-					real_t closest_dist = 1e10;
-					for (int i = 0; i < poly.size(); i++) {
-
-						Vector2 cp = xform.xform(poly[i]);
-
-						real_t d = cp.distance_to(gpoint);
-						if (d < closest_dist && d < grab_threshold) {
-							closest_dist = d;
-							closest_pos = cp;
-							closest_idx = i;
-						}
-					}
-
-					if (closest_idx >= 0) {
-
-						undo_redo->create_action(TTR("Edit Poly (Remove Point)"));
-						undo_redo->add_undo_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
-						poly.remove(closest_idx);
-						undo_redo->add_do_method(node->get_occluder_polygon().ptr(), "set_polygon", poly);
-						undo_redo->add_do_method(canvas_item_editor, "update_viewport");
-						undo_redo->add_undo_method(canvas_item_editor, "update_viewport");
-						undo_redo->commit_action();
-						return true;
-					}
-				}
-
-			} break;
-		}
-	}
-
-	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 = node->get_global_transform().affine_inverse().xform(cpoint);
-
-			canvas_item_editor->update_viewport();
-		}
-	}
-
-	return false;
 }
 
-void LightOccluder2DEditor::forward_canvas_draw_over_viewport(Control *p_overlay) {
-
-	if (!node || !node->get_occluder_polygon().is_valid())
-		return;
-
-	Vector<Vector2> poly;
+int LightOccluder2DEditor::_get_polygon_count() const {
 
-	if (wip_active)
-		poly = wip;
+	Ref<OccluderPolygon2D> occluder = node->get_occluder_polygon();
+	if (occluder.is_valid())
+		return occluder->get_polygon().size();
 	else
-		poly = Variant(node->get_occluder_polygon()->get_polygon());
-
-	Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
-	Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
-
-	for (int i = 0; i < poly.size(); i++) {
-
-		Vector2 p, p2;
-		p = i == edited_point ? edited_point_pos : poly[i];
-		if ((wip_active && i == poly.size() - 1) || (((i + 1) % poly.size()) == edited_point))
-			p2 = edited_point_pos;
-		else
-			p2 = poly[(i + 1) % poly.size()];
+		return 0;
+}
 
-		Vector2 point = xform.xform(p);
-		Vector2 next_point = xform.xform(p2);
+Variant LightOccluder2DEditor::_get_polygon(int p_idx) const {
 
-		Color col = Color(1, 0.3, 0.1, 0.8);
+	Ref<OccluderPolygon2D> occluder = node->get_occluder_polygon();
+	if (occluder.is_valid())
+		return occluder->get_polygon();
+	else
+		return Variant(Vector<Vector2>());
+}
 
-		if (i == poly.size() - 1 && (!node->get_occluder_polygon()->is_closed() || wip_active)) {
+void LightOccluder2DEditor::_set_polygon(int p_idx, const Variant &p_polygon) const {
 
-		} else {
-			p_overlay->draw_line(point, next_point, col, 2);
-		}
-		p_overlay->draw_texture(handle, point - handle->get_size() * 0.5);
-	}
+	Ref<OccluderPolygon2D> occluder = _ensure_occluder();
+	occluder->set_polygon(p_polygon);
 }
 
-void LightOccluder2DEditor::edit(Node *p_collision_polygon) {
+void LightOccluder2DEditor::_action_set_polygon(int p_idx, const Variant &p_previous, const Variant &p_polygon) {
 
-	if (!canvas_item_editor) {
-		canvas_item_editor = CanvasItemEditor::get_singleton();
-	}
+	Ref<OccluderPolygon2D> occluder = _ensure_occluder();
+	undo_redo->add_do_method(occluder.ptr(), "set_polygon", p_polygon);
+	undo_redo->add_undo_method(occluder.ptr(), "set_polygon", p_previous);
+}
 
-	if (p_collision_polygon) {
+bool LightOccluder2DEditor::_has_resource() const {
 
-		node = Object::cast_to<LightOccluder2D>(p_collision_polygon);
-		wip.clear();
-		wip_active = false;
-		edited_point = -1;
-		canvas_item_editor->update_viewport();
-	} else {
-		node = NULL;
-	}
+	return node && node->get_occluder_polygon().is_valid();
 }
 
-void LightOccluder2DEditor::_create_poly() {
+void LightOccluder2DEditor::_create_resource() {
 
 	if (!node)
 		return;
+
 	undo_redo->create_action(TTR("Create Occluder Polygon"));
 	undo_redo->add_do_method(node, "set_occluder_polygon", Ref<OccluderPolygon2D>(memnew(OccluderPolygon2D)));
 	undo_redo->add_undo_method(node, "set_occluder_polygon", Variant(REF()));
 	undo_redo->commit_action();
-}
-
-void LightOccluder2DEditor::_bind_methods() {
 
-	ClassDB::bind_method(D_METHOD("_menu_option"), &LightOccluder2DEditor::_menu_option);
-	ClassDB::bind_method(D_METHOD("_node_removed"), &LightOccluder2DEditor::_node_removed);
-	ClassDB::bind_method(D_METHOD("_create_poly"), &LightOccluder2DEditor::_create_poly);
+	_menu_option(MODE_CREATE);
 }
 
-LightOccluder2DEditor::LightOccluder2DEditor(EditorNode *p_editor) {
+LightOccluder2DEditor::LightOccluder2DEditor(EditorNode *p_editor) :
+		AbstractPolygon2DEditor(p_editor) {
 
 	node = NULL;
-	canvas_item_editor = NULL;
-	editor = p_editor;
-	undo_redo = editor->get_undo_redo();
-
-	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:") + "\n" + TTR("LMB: Move Point.") + "\n" + TTR("Ctrl+LMB: Split Segment.") + "\n" + TTR("RMB: Erase Point."));
-
-	create_poly = memnew(ConfirmationDialog);
-	add_child(create_poly);
-	create_poly->get_ok()->set_text(TTR("Create"));
-
-	mode = MODE_EDIT;
-	wip_active = false;
-}
-
-void LightOccluder2DEditorPlugin::edit(Object *p_object) {
-
-	light_occluder_editor->edit(Object::cast_to<Node>(p_object));
-}
-
-bool LightOccluder2DEditorPlugin::handles(Object *p_object) const {
-
-	return p_object->is_class("LightOccluder2D");
-}
-
-void LightOccluder2DEditorPlugin::make_visible(bool p_visible) {
-
-	if (p_visible) {
-		light_occluder_editor->show();
-	} else {
-
-		light_occluder_editor->hide();
-		light_occluder_editor->edit(NULL);
-	}
-}
-
-LightOccluder2DEditorPlugin::LightOccluder2DEditorPlugin(EditorNode *p_node) {
-
-	editor = p_node;
-	light_occluder_editor = memnew(LightOccluder2DEditor(p_node));
-	CanvasItemEditor::get_singleton()->add_control_to_menu_panel(light_occluder_editor);
-
-	light_occluder_editor->hide();
 }
 
-LightOccluder2DEditorPlugin::~LightOccluder2DEditorPlugin() {
+LightOccluder2DEditorPlugin::LightOccluder2DEditorPlugin(EditorNode *p_node) :
+		AbstractPolygon2DEditorPlugin(p_node, memnew(LightOccluder2DEditor(p_node)), "LightOccluder2D") {
 }
diff --git a/editor/plugins/light_occluder_2d_editor_plugin.h b/editor/plugins/light_occluder_2d_editor_plugin.h
index a1962892ee..6117d50e89 100644
--- a/editor/plugins/light_occluder_2d_editor_plugin.h
+++ b/editor/plugins/light_occluder_2d_editor_plugin.h
@@ -31,83 +31,44 @@
 #ifndef LIGHT_OCCLUDER_2D_EDITOR_PLUGIN_H
 #define LIGHT_OCCLUDER_2D_EDITOR_PLUGIN_H
 
-#include "editor/editor_node.h"
-#include "editor/editor_plugin.h"
+#include "editor/plugins/abstract_polygon_2d_editor.h"
 #include "scene/2d/light_occluder_2d.h"
-#include "scene/gui/tool_button.h"
 
 /**
 	@author Juan Linietsky <reduzio@gmail.com>
 */
-class CanvasItemEditor;
+class LightOccluder2DEditor : public AbstractPolygon2DEditor {
 
-class LightOccluder2DEditor : public HBoxContainer {
+	GDCLASS(LightOccluder2DEditor, AbstractPolygon2DEditor);
 
-	GDCLASS(LightOccluder2DEditor, HBoxContainer);
-
-	UndoRedo *undo_redo;
-	enum Mode {
-
-		MODE_CREATE,
-		MODE_EDIT,
-
-	};
-
-	Mode mode;
-
-	ToolButton *button_create;
-	ToolButton *button_edit;
-
-	CanvasItemEditor *canvas_item_editor;
-	EditorNode *editor;
-	Panel *panel;
 	LightOccluder2D *node;
-	MenuButton *options;
 
-	int edited_point;
-	Vector2 edited_point_pos;
-	Vector<Vector2> pre_move_edit;
-	Vector<Vector2> wip;
-	bool wip_active;
+	Ref<OccluderPolygon2D> _ensure_occluder() const;
 
-	ConfirmationDialog *create_poly;
+protected:
+	virtual Node2D *_get_node() const;
+	virtual void _set_node(Node *p_polygon);
 
-	void _wip_close(bool p_closed);
-	void _menu_option(int p_option);
-	void _create_poly();
+	virtual bool _is_line() const;
+	virtual int _get_polygon_count() const;
+	virtual Variant _get_polygon(int p_idx) const;
+	virtual void _set_polygon(int p_idx, const Variant &p_polygon) const;
 
-protected:
-	void _notification(int p_what);
-	void _node_removed(Node *p_node);
-	static void _bind_methods();
+	virtual void _action_set_polygon(int p_idx, const Variant &p_previous, const Variant &p_polygon);
+
+	virtual bool _has_resource() const;
+	virtual void _create_resource();
 
 public:
-	Vector2 snap_point(const Vector2 &p_point) const;
-	void forward_canvas_draw_over_viewport(Control *p_overlay);
-	bool forward_gui_input(const Ref<InputEvent> &p_event);
-	void edit(Node *p_collision_polygon);
 	LightOccluder2DEditor(EditorNode *p_editor);
 };
 
-class LightOccluder2DEditorPlugin : public EditorPlugin {
+class LightOccluder2DEditorPlugin : public AbstractPolygon2DEditorPlugin {
 
-	GDCLASS(LightOccluder2DEditorPlugin, EditorPlugin);
-
-	LightOccluder2DEditor *light_occluder_editor;
-	EditorNode *editor;
+	GDCLASS(LightOccluder2DEditorPlugin, AbstractPolygon2DEditorPlugin);
 
 public:
-	virtual bool forward_canvas_gui_input(const Ref<InputEvent> &p_event) { return light_occluder_editor->forward_gui_input(p_event); }
-	virtual void forward_canvas_draw_over_viewport(Control *p_overlay) { return light_occluder_editor->forward_canvas_draw_over_viewport(p_overlay); }
-
-	virtual String get_name() const { return "LightOccluder2D"; }
-	bool has_main_screen() const { return false; }
-	virtual void edit(Object *p_object);
-	virtual bool handles(Object *p_object) const;
-	virtual void make_visible(bool p_visible);
-
 	LightOccluder2DEditorPlugin(EditorNode *p_node);
-	~LightOccluder2DEditorPlugin();
 };
 
 #endif // LIGHT_OCCLUDER_2D_EDITOR_PLUGIN_H