godot/editor/plugins/path_2d_editor_plugin.cpp
Pedro J. Estébanez 3f31925b18 Universalize draw-over API for EditorPlugins
- Now it is usable from both `CanvasItem` and `Spatial` editors.
- `EditorPlugin` API changes:
 - `forward_draw_over_canvas()` becomes `forward_draw_over_viewport()`.
 - `update_canvas()` becomes `update_overlays()`, which now triggers the update of every overlay on top of any 2D or 3D viewports present. Also now it returns the number of such viewports, which is useful whenever you need to know the number of draw-over calls you'll get.
 - New: `[set/is]_force_draw_over_forwarding_enabled()` to force overlaying regardless it handles the current object type, in a similar fashion as `[set/is]_input_event_forwarding_always_enabled`. This kind of overlay is also on top of those for regular handled node types.
 - New: `forward_force_draw_over_canvas()`, which is the callback that gets called for plugins that enable forced overlaying.
2017-11-24 21:24:15 +01:00

485 lines
18 KiB
C++

/*************************************************************************/
/* path_2d_editor_plugin.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 "path_2d_editor_plugin.h"
#include "canvas_item_editor_plugin.h"
#include "editor/editor_settings.h"
#include "os/file_access.h"
#include "os/keyboard.h"
void Path2DEditor::_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"));
//set_pressed_button(button_edit);
//button_edit->set_pressed(true);
} break;
case NOTIFICATION_PHYSICS_PROCESS: {
} break;
}
}
void Path2DEditor::_node_removed(Node *p_node) {
if (p_node == node) {
node = NULL;
hide();
}
}
bool Path2DEditor::forward_gui_input(const Ref<InputEvent> &p_event) {
if (!node)
return false;
if (!node->is_visible_in_tree())
return false;
if (!node->get_curve().is_valid())
return false;
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())));
real_t grab_threshold = EDITOR_DEF("editors/poly_editor/point_grab_radius", 8);
if (mb->is_pressed() && action == ACTION_NONE) {
Ref<Curve2D> curve = node->get_curve();
for (int i = 0; i < curve->get_point_count(); i++) {
real_t dist_to_p = gpoint.distance_to(xform.xform(curve->get_point_position(i)));
real_t dist_to_p_out = gpoint.distance_to(xform.xform(curve->get_point_position(i) + curve->get_point_out(i)));
real_t dist_to_p_in = gpoint.distance_to(xform.xform(curve->get_point_position(i) + curve->get_point_in(i)));
// Check for point movement start (for point + in/out controls).
if (mb->get_button_index() == BUTTON_LEFT) {
if (mode == MODE_EDIT && !mb->get_shift() && dist_to_p < grab_threshold) {
// Points can only be moved in edit mode.
action = ACTION_MOVING_POINT;
action_point = i;
moving_from = curve->get_point_position(i);
moving_screen_from = gpoint;
return true;
} else if (mode == MODE_EDIT || mode == MODE_EDIT_CURVE) {
// In/out controls can be moved in multiple modes.
if (dist_to_p_out < grab_threshold && i < (curve->get_point_count() - 1)) {
action = ACTION_MOVING_OUT;
action_point = i;
moving_from = curve->get_point_out(i);
moving_screen_from = gpoint;
return true;
} else if (dist_to_p_in < grab_threshold && i > 0) {
action = ACTION_MOVING_IN;
action_point = i;
moving_from = curve->get_point_in(i);
moving_screen_from = gpoint;
return true;
}
}
}
// Check for point deletion.
if ((mb->get_button_index() == BUTTON_RIGHT && mode == MODE_EDIT) || (mb->get_button_index() == BUTTON_LEFT && mode == MODE_DELETE)) {
if (dist_to_p < grab_threshold) {
undo_redo->create_action(TTR("Remove Point from Curve"));
undo_redo->add_do_method(curve.ptr(), "remove_point", i);
undo_redo->add_undo_method(curve.ptr(), "add_point", curve->get_point_position(i), curve->get_point_in(i), curve->get_point_out(i), i);
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();
return true;
} else if (dist_to_p_out < grab_threshold) {
undo_redo->create_action(TTR("Remove Out-Control from Curve"));
undo_redo->add_do_method(curve.ptr(), "set_point_out", i, Vector2());
undo_redo->add_undo_method(curve.ptr(), "set_point_out", i, curve->get_point_out(i));
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();
return true;
} else if (dist_to_p_in < grab_threshold) {
undo_redo->create_action(TTR("Remove In-Control from Curve"));
undo_redo->add_do_method(curve.ptr(), "set_point_in", i, Vector2());
undo_redo->add_undo_method(curve.ptr(), "set_point_in", i, curve->get_point_in(i));
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();
return true;
}
}
}
}
// Check for point creation.
if (mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT && ((mb->get_command() && mode == MODE_EDIT) || mode == MODE_CREATE)) {
Ref<Curve2D> curve = node->get_curve();
undo_redo->create_action(TTR("Add Point to Curve"));
undo_redo->add_do_method(curve.ptr(), "add_point", cpoint);
undo_redo->add_undo_method(curve.ptr(), "remove_point", curve->get_point_count());
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();
action = ACTION_MOVING_POINT;
action_point = curve->get_point_count() - 1;
moving_from = curve->get_point_position(action_point);
moving_screen_from = gpoint;
canvas_item_editor->get_viewport_control()->update();
return true;
}
// Check for point movement completion.
if (!mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT && action != ACTION_NONE) {
Ref<Curve2D> curve = node->get_curve();
Vector2 new_pos = moving_from + xform.affine_inverse().basis_xform(gpoint - moving_screen_from);
switch (action) {
case ACTION_NONE:
// N/A, handled in above condition.
break;
case ACTION_MOVING_POINT: {
undo_redo->create_action(TTR("Move Point in Curve"));
undo_redo->add_do_method(curve.ptr(), "set_point_position", action_point, cpoint);
undo_redo->add_undo_method(curve.ptr(), "set_point_position", action_point, moving_from);
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();
} break;
case ACTION_MOVING_IN: {
undo_redo->create_action(TTR("Move In-Control in Curve"));
undo_redo->add_do_method(curve.ptr(), "set_point_in", action_point, new_pos);
undo_redo->add_undo_method(curve.ptr(), "set_point_in", action_point, moving_from);
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();
} break;
case ACTION_MOVING_OUT: {
undo_redo->create_action(TTR("Move Out-Control in Curve"));
undo_redo->add_do_method(curve.ptr(), "set_point_out", action_point, new_pos);
undo_redo->add_undo_method(curve.ptr(), "set_point_out", action_point, moving_from);
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();
} break;
}
action = ACTION_NONE;
return true;
}
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
if (action != ACTION_NONE) {
// Handle point/control movement.
Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Vector2 gpoint = mm->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(mm->get_position())));
Ref<Curve2D> curve = node->get_curve();
Vector2 new_pos = moving_from + xform.affine_inverse().basis_xform(gpoint - moving_screen_from);
switch (action) {
case ACTION_NONE:
// N/A, handled in above condition.
break;
case ACTION_MOVING_POINT: {
curve->set_point_position(action_point, cpoint);
} break;
case ACTION_MOVING_IN: {
curve->set_point_in(action_point, new_pos);
} break;
case ACTION_MOVING_OUT: {
curve->set_point_out(action_point, new_pos);
} break;
}
canvas_item_editor->get_viewport_control()->update();
return true;
}
}
return false;
}
void Path2DEditor::forward_draw_over_viewport(Control *p_overlay) {
if (!node)
return;
if (!node->is_visible_in_tree())
return;
if (!node->get_curve().is_valid())
return;
Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
Size2 handle_size = handle->get_size();
Ref<Curve2D> curve = node->get_curve();
int len = curve->get_point_count();
Control *vpc = canvas_item_editor->get_viewport_control();
for (int i = 0; i < len; i++) {
Vector2 point = xform.xform(curve->get_point_position(i));
vpc->draw_texture_rect(handle, Rect2(point - handle_size * 0.5, handle_size), false, Color(1, 1, 1, 1));
if (i < len - 1) {
Vector2 pointout = xform.xform(curve->get_point_position(i) + curve->get_point_out(i));
vpc->draw_line(point, pointout, Color(0.5, 0.5, 1.0, 0.8), 1.0);
vpc->draw_texture_rect(handle, Rect2(pointout - handle_size * 0.5, handle_size), false, Color(1, 0.5, 1, 0.3));
}
if (i > 0) {
Vector2 pointin = xform.xform(curve->get_point_position(i) + curve->get_point_in(i));
vpc->draw_line(point, pointin, Color(0.5, 0.5, 1.0, 0.8), 1.0);
vpc->draw_texture_rect(handle, Rect2(pointin - handle_size * 0.5, handle_size), false, Color(1, 0.5, 1, 0.3));
}
}
}
void Path2DEditor::_node_visibility_changed() {
if (!node)
return;
canvas_item_editor->get_viewport_control()->update();
}
void Path2DEditor::edit(Node *p_path2d) {
if (!canvas_item_editor) {
canvas_item_editor = CanvasItemEditor::get_singleton();
}
if (p_path2d) {
node = Object::cast_to<Path2D>(p_path2d);
if (!node->is_connected("visibility_changed", this, "_node_visibility_changed"))
node->connect("visibility_changed", this, "_node_visibility_changed");
} else {
// node may have been deleted at this point
if (node && node->is_connected("visibility_changed", this, "_node_visibility_changed"))
node->disconnect("visibility_changed", this, "_node_visibility_changed");
node = NULL;
}
}
void Path2DEditor::_bind_methods() {
//ClassDB::bind_method(D_METHOD("_menu_option"),&Path2DEditor::_menu_option);
ClassDB::bind_method(D_METHOD("_node_visibility_changed"), &Path2DEditor::_node_visibility_changed);
ClassDB::bind_method(D_METHOD("_mode_selected"), &Path2DEditor::_mode_selected);
}
void Path2DEditor::_mode_selected(int p_mode) {
if (p_mode == MODE_CREATE) {
curve_create->set_pressed(true);
curve_edit->set_pressed(false);
curve_edit_curve->set_pressed(false);
curve_del->set_pressed(false);
} else if (p_mode == MODE_EDIT) {
curve_create->set_pressed(false);
curve_edit->set_pressed(true);
curve_edit_curve->set_pressed(false);
curve_del->set_pressed(false);
} else if (p_mode == MODE_EDIT_CURVE) {
curve_create->set_pressed(false);
curve_edit->set_pressed(false);
curve_edit_curve->set_pressed(true);
curve_del->set_pressed(false);
} else if (p_mode == MODE_DELETE) {
curve_create->set_pressed(false);
curve_edit->set_pressed(false);
curve_edit_curve->set_pressed(false);
curve_del->set_pressed(true);
} else if (p_mode == ACTION_CLOSE) {
//?
if (!node->get_curve().is_valid())
return;
if (node->get_curve()->get_point_count() < 3)
return;
Vector2 begin = node->get_curve()->get_point_position(0);
Vector2 end = node->get_curve()->get_point_position(node->get_curve()->get_point_count() - 1);
if (begin.distance_to(end) < CMP_EPSILON)
return;
undo_redo->create_action(TTR("Remove Point from Curve"));
undo_redo->add_do_method(node->get_curve().ptr(), "add_point", begin);
undo_redo->add_undo_method(node->get_curve().ptr(), "remove_point", node->get_curve()->get_point_count());
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();
return;
}
mode = Mode(p_mode);
}
Path2DEditor::Path2DEditor(EditorNode *p_editor) {
canvas_item_editor = NULL;
editor = p_editor;
undo_redo = editor->get_undo_redo();
mode = MODE_EDIT;
action = ACTION_NONE;
base_hb = memnew(HBoxContainer);
CanvasItemEditor::get_singleton()->add_control_to_menu_panel(base_hb);
sep = memnew(VSeparator);
base_hb->add_child(sep);
curve_edit = memnew(ToolButton);
curve_edit->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveEdit", "EditorIcons"));
curve_edit->set_toggle_mode(true);
curve_edit->set_focus_mode(Control::FOCUS_NONE);
curve_edit->set_tooltip(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"));
curve_edit->connect("pressed", this, "_mode_selected", varray(MODE_EDIT));
base_hb->add_child(curve_edit);
curve_edit_curve = memnew(ToolButton);
curve_edit_curve->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveCurve", "EditorIcons"));
curve_edit_curve->set_toggle_mode(true);
curve_edit_curve->set_focus_mode(Control::FOCUS_NONE);
curve_edit_curve->set_tooltip(TTR("Select Control Points (Shift+Drag)"));
curve_edit_curve->connect("pressed", this, "_mode_selected", varray(MODE_EDIT_CURVE));
base_hb->add_child(curve_edit_curve);
curve_create = memnew(ToolButton);
curve_create->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveCreate", "EditorIcons"));
curve_create->set_toggle_mode(true);
curve_create->set_focus_mode(Control::FOCUS_NONE);
curve_create->set_tooltip(TTR("Add Point (in empty space)") + "\n" + TTR("Split Segment (in curve)"));
curve_create->connect("pressed", this, "_mode_selected", varray(MODE_CREATE));
base_hb->add_child(curve_create);
curve_del = memnew(ToolButton);
curve_del->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveDelete", "EditorIcons"));
curve_del->set_toggle_mode(true);
curve_del->set_focus_mode(Control::FOCUS_NONE);
curve_del->set_tooltip(TTR("Delete Point"));
curve_del->connect("pressed", this, "_mode_selected", varray(MODE_DELETE));
base_hb->add_child(curve_del);
curve_close = memnew(ToolButton);
curve_close->set_icon(EditorNode::get_singleton()->get_gui_base()->get_icon("CurveClose", "EditorIcons"));
curve_close->set_focus_mode(Control::FOCUS_NONE);
curve_close->set_tooltip(TTR("Close Curve"));
curve_close->connect("pressed", this, "_mode_selected", varray(ACTION_CLOSE));
base_hb->add_child(curve_close);
base_hb->hide();
curve_edit->set_pressed(true);
}
void Path2DEditorPlugin::edit(Object *p_object) {
path2d_editor->edit(Object::cast_to<Node>(p_object));
}
bool Path2DEditorPlugin::handles(Object *p_object) const {
return p_object->is_class("Path2D");
}
void Path2DEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
path2d_editor->show();
path2d_editor->base_hb->show();
} else {
path2d_editor->hide();
path2d_editor->base_hb->hide();
path2d_editor->edit(NULL);
}
}
Path2DEditorPlugin::Path2DEditorPlugin(EditorNode *p_node) {
editor = p_node;
path2d_editor = memnew(Path2DEditor(p_node));
CanvasItemEditor::get_singleton()->add_control_to_menu_panel(path2d_editor);
path2d_editor->hide();
}
Path2DEditorPlugin::~Path2DEditorPlugin() {
}