298 lines
11 KiB
C++
298 lines
11 KiB
C++
/*************************************************************************/
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/* line_2d_editor_plugin.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 "line_2d_editor_plugin.h"
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#include "canvas_item_editor_plugin.h"
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#include "editor/editor_settings.h"
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#include "os/file_access.h"
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#include "os/keyboard.h"
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//----------------------------------------------------------------------------
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// Line2DEditor
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//----------------------------------------------------------------------------
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void Line2DEditor::_node_removed(Node *p_node) {
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if (p_node == node) {
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node = NULL;
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hide();
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}
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}
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void Line2DEditor::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_VISIBILITY_CHANGED:
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// This widget is not a child but should have the same visibility state
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base_hb->set_visible(is_visible());
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break;
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}
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}
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Vector2 Line2DEditor::mouse_to_local_pos(Vector2 gpos, bool alt) {
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Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
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return !alt ? canvas_item_editor->snap_point(xform.affine_inverse().xform(gpos)) : node->get_global_transform().affine_inverse().xform(canvas_item_editor->snap_point(canvas_item_editor->get_canvas_transform().affine_inverse().xform(gpos)));
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}
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int Line2DEditor::get_point_index_at(Vector2 gpos) {
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ERR_FAIL_COND_V(node == 0, -1);
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real_t grab_threshold = EDITOR_DEF("editors/poly_editor/point_grab_radius", 8);
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Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
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for (int i = 0; i < node->get_point_count(); ++i) {
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Point2 p = xform.xform(node->get_point_pos(i));
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if (gpos.distance_to(p) < grab_threshold) {
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return i;
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}
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}
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return -1;
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}
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bool Line2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
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if (!node)
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return false;
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if (!node->is_visible())
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return false;
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Ref<InputEventMouseButton> mb = p_event;
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if (mb.is_valid()) {
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Vector2 gpoint = mb->get_position();
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Vector2 cpoint = mouse_to_local_pos(gpoint, mb->get_alt());
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if (mb->is_pressed() && _dragging == false) {
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int i = get_point_index_at(gpoint);
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if (i != -1) {
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if (mb->get_button_index() == BUTTON_LEFT && !mb->get_shift() && mode == MODE_EDIT) {
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_dragging = true;
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action_point = i;
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moving_from = node->get_point_pos(i);
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moving_screen_from = gpoint;
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} else if ((mb->get_button_index() == BUTTON_RIGHT && mode == MODE_EDIT) || (mb->get_button_index() == BUTTON_LEFT && mode == MODE_DELETE)) {
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undo_redo->create_action(TTR("Remove Point from Line2D"));
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undo_redo->add_do_method(node, "remove_point", i);
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undo_redo->add_undo_method(node, "add_point", node->get_point_pos(i), i);
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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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return true;
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}
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}
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if (mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT && ((mb->get_command() && mode == MODE_EDIT) || mode == MODE_CREATE)) {
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undo_redo->create_action(TTR("Add Point to Line2D"));
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undo_redo->add_do_method(node, "add_point", cpoint);
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undo_redo->add_undo_method(node, "remove_point", node->get_point_count());
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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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_dragging = true;
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action_point = node->get_point_count() - 1;
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moving_from = node->get_point_pos(action_point);
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moving_screen_from = gpoint;
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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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if (!mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT && _dragging) {
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undo_redo->create_action(TTR("Move Point in Line2D"));
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undo_redo->add_do_method(node, "set_point_pos", action_point, cpoint);
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undo_redo->add_undo_method(node, "set_point_pos", action_point, moving_from);
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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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_dragging = false;
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return true;
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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 (_dragging) {
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Vector2 cpoint = mouse_to_local_pos(mm->get_position(), mm->get_alt());
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node->set_point_pos(action_point, cpoint);
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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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return false;
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}
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void Line2DEditor::_canvas_draw() {
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if (!node)
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return;
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if (!node->is_visible())
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return;
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Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
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Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
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Size2 handle_size = handle->get_size();
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int len = node->get_point_count();
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Control *vpc = canvas_item_editor->get_viewport_control();
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for (int i = 0; i < len; ++i) {
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Vector2 point = xform.xform(node->get_point_pos(i));
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vpc->draw_texture_rect(handle, Rect2(point - handle_size * 0.5, handle_size), false);
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}
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}
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void Line2DEditor::_node_visibility_changed() {
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if (!node)
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return;
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canvas_item_editor->get_viewport_control()->update();
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}
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void Line2DEditor::edit(Node *p_line2d) {
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if (!canvas_item_editor)
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canvas_item_editor = CanvasItemEditor::get_singleton();
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if (p_line2d) {
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node = Object::cast_to<Line2D>(p_line2d);
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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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if (!node->is_connected("visibility_changed", this, "_node_visibility_changed"))
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node->connect("visibility_changed", this, "_node_visibility_changed");
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} else {
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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()->disconnect("draw", this, "_canvas_draw");
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// node may have been deleted at this point
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if (node && node->is_connected("visibility_changed", this, "_node_visibility_changed"))
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node->disconnect("visibility_changed", this, "_node_visibility_changed");
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node = NULL;
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}
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}
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void Line2DEditor::_bind_methods() {
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ClassDB::bind_method(D_METHOD("_canvas_draw"), &Line2DEditor::_canvas_draw);
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ClassDB::bind_method(D_METHOD("_node_visibility_changed"), &Line2DEditor::_node_visibility_changed);
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ClassDB::bind_method(D_METHOD("_mode_selected"), &Line2DEditor::_mode_selected);
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}
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void Line2DEditor::_mode_selected(int p_mode) {
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for (int i = 0; i < _MODE_COUNT; ++i) {
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toolbar_buttons[i]->set_pressed(i == p_mode);
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}
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mode = Mode(p_mode);
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}
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Line2DEditor::Line2DEditor(EditorNode *p_editor) {
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canvas_item_editor = NULL;
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editor = p_editor;
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undo_redo = editor->get_undo_redo();
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_dragging = false;
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base_hb = memnew(HBoxContainer);
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CanvasItemEditor::get_singleton()->add_control_to_menu_panel(base_hb);
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sep = memnew(VSeparator);
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base_hb->add_child(sep);
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{
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ToolButton *b = memnew(ToolButton);
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b->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveEdit", "EditorIcons"));
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b->set_toggle_mode(true);
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b->set_focus_mode(Control::FOCUS_NONE);
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b->set_tooltip(
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TTR("Select Points") + "\n" + TTR("Shift+Drag: Select Control Points") + "\n" + keycode_get_string(KEY_MASK_CMD) + TTR("Click: Add Point") + "\n" + TTR("Right Click: Delete Point"));
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b->connect("pressed", this, "_mode_selected", varray(MODE_EDIT));
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toolbar_buttons[MODE_EDIT] = b;
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base_hb->add_child(b);
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}
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{
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ToolButton *b = memnew(ToolButton);
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b->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveCreate", "EditorIcons"));
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b->set_toggle_mode(true);
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b->set_focus_mode(Control::FOCUS_NONE);
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b->set_tooltip(TTR("Add Point (in empty space)") + "\n" + TTR("Split Segment (in line)"));
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b->connect("pressed", this, "_mode_selected", varray(MODE_CREATE));
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toolbar_buttons[MODE_CREATE] = b;
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base_hb->add_child(b);
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}
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{
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ToolButton *b = memnew(ToolButton);
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b->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveDelete", "EditorIcons"));
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b->set_toggle_mode(true);
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b->set_focus_mode(Control::FOCUS_NONE);
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b->set_tooltip(TTR("Delete Point"));
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b->connect("pressed", this, "_mode_selected", varray(MODE_DELETE));
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toolbar_buttons[MODE_DELETE] = b;
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base_hb->add_child(b);
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}
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base_hb->hide();
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hide();
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_mode_selected(MODE_CREATE);
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}
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//----------------------------------------------------------------------------
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// Line2DEditorPlugin
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//----------------------------------------------------------------------------
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void Line2DEditorPlugin::edit(Object *p_object) {
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line2d_editor->edit(Object::cast_to<Node>(p_object));
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}
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bool Line2DEditorPlugin::handles(Object *p_object) const {
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return p_object->is_class("Line2D");
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}
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void Line2DEditorPlugin::make_visible(bool p_visible) {
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line2d_editor->set_visible(p_visible);
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if (p_visible == false)
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line2d_editor->edit(NULL);
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}
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Line2DEditorPlugin::Line2DEditorPlugin(EditorNode *p_node) {
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editor = p_node;
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line2d_editor = memnew(Line2DEditor(p_node));
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CanvasItemEditor::get_singleton()->add_control_to_menu_panel(line2d_editor);
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line2d_editor->hide();
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}
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