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canvas_item_editor_plugin.cpp
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/**************************************************************************/
/* canvas_item_editor_plugin.cpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 "canvas_item_editor_plugin.h"
#include "core/config/project_settings.h"
#include "core/input/input.h"
#include "core/os/keyboard.h"
#include "editor/debugger/editor_debugger_node.h"
#include "editor/editor_node.h"
#include "editor/editor_scale.h"
#include "editor/editor_settings.h"
#include "editor/editor_toaster.h"
#include "editor/editor_undo_redo_manager.h"
#include "editor/editor_zoom_widget.h"
#include "editor/plugins/animation_player_editor_plugin.h"
#include "editor/plugins/script_editor_plugin.h"
#include "editor/scene_tree_dock.h"
#include "scene/2d/cpu_particles_2d.h"
#include "scene/2d/gpu_particles_2d.h"
#include "scene/2d/light_2d.h"
#include "scene/2d/polygon_2d.h"
#include "scene/2d/skeleton_2d.h"
#include "scene/2d/sprite_2d.h"
#include "scene/2d/touch_screen_button.h"
#include "scene/gui/flow_container.h"
#include "scene/gui/grid_container.h"
#include "scene/gui/nine_patch_rect.h"
#include "scene/gui/separator.h"
#include "scene/gui/split_container.h"
#include "scene/gui/subviewport_container.h"
#include "scene/gui/view_panner.h"
#include "scene/main/canvas_layer.h"
#include "scene/main/window.h"
#include "scene/resources/packed_scene.h"
// Min and Max are power of two in order to play nicely with successive increment.
// That way, we can naturally reach a 100% zoom from boundaries.
constexpr real_t MIN_ZOOM = 1. / 128;
constexpr real_t MAX_ZOOM = 128;
#define RULER_WIDTH (15 * EDSCALE)
constexpr real_t SCALE_HANDLE_DISTANCE = 25;
constexpr real_t MOVE_HANDLE_DISTANCE = 25;
class SnapDialog : public ConfirmationDialog {
GDCLASS(SnapDialog, ConfirmationDialog);
friend class CanvasItemEditor;
SpinBox *grid_offset_x;
SpinBox *grid_offset_y;
SpinBox *grid_step_x;
SpinBox *grid_step_y;
SpinBox *primary_grid_steps;
SpinBox *rotation_offset;
SpinBox *rotation_step;
SpinBox *scale_step;
public:
SnapDialog() {
const int SPIN_BOX_GRID_RANGE = 16384;
const int SPIN_BOX_ROTATION_RANGE = 360;
const real_t SPIN_BOX_SCALE_MIN = 0.01;
const real_t SPIN_BOX_SCALE_MAX = 100;
Label *label;
VBoxContainer *container;
GridContainer *child_container;
set_title(TTR("Configure Snap"));
container = memnew(VBoxContainer);
add_child(container);
child_container = memnew(GridContainer);
child_container->set_columns(3);
container->add_child(child_container);
label = memnew(Label);
label->set_text(TTR("Grid Offset:"));
child_container->add_child(label);
label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
grid_offset_x = memnew(SpinBox);
grid_offset_x->set_min(-SPIN_BOX_GRID_RANGE);
grid_offset_x->set_max(SPIN_BOX_GRID_RANGE);
grid_offset_x->set_allow_lesser(true);
grid_offset_x->set_allow_greater(true);
grid_offset_x->set_suffix("px");
grid_offset_x->set_h_size_flags(Control::SIZE_EXPAND_FILL);
grid_offset_x->set_select_all_on_focus(true);
child_container->add_child(grid_offset_x);
grid_offset_y = memnew(SpinBox);
grid_offset_y->set_min(-SPIN_BOX_GRID_RANGE);
grid_offset_y->set_max(SPIN_BOX_GRID_RANGE);
grid_offset_y->set_allow_lesser(true);
grid_offset_y->set_allow_greater(true);
grid_offset_y->set_suffix("px");
grid_offset_y->set_h_size_flags(Control::SIZE_EXPAND_FILL);
grid_offset_y->set_select_all_on_focus(true);
child_container->add_child(grid_offset_y);
label = memnew(Label);
label->set_text(TTR("Grid Step:"));
child_container->add_child(label);
label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
grid_step_x = memnew(SpinBox);
grid_step_x->set_min(1);
grid_step_x->set_max(SPIN_BOX_GRID_RANGE);
grid_step_x->set_allow_greater(true);
grid_step_x->set_suffix("px");
grid_step_x->set_h_size_flags(Control::SIZE_EXPAND_FILL);
grid_step_x->set_select_all_on_focus(true);
child_container->add_child(grid_step_x);
grid_step_y = memnew(SpinBox);
grid_step_y->set_min(1);
grid_step_y->set_max(SPIN_BOX_GRID_RANGE);
grid_step_y->set_allow_greater(true);
grid_step_y->set_suffix("px");
grid_step_y->set_h_size_flags(Control::SIZE_EXPAND_FILL);
grid_step_y->set_select_all_on_focus(true);
child_container->add_child(grid_step_y);
child_container = memnew(GridContainer);
child_container->set_columns(2);
container->add_child(child_container);
label = memnew(Label);
label->set_text(TTR("Primary Line Every:"));
label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
child_container->add_child(label);
primary_grid_steps = memnew(SpinBox);
primary_grid_steps->set_min(0);
primary_grid_steps->set_step(1);
primary_grid_steps->set_max(100);
primary_grid_steps->set_allow_greater(true);
primary_grid_steps->set_suffix(TTR("steps"));
primary_grid_steps->set_h_size_flags(Control::SIZE_EXPAND_FILL);
primary_grid_steps->set_select_all_on_focus(true);
child_container->add_child(primary_grid_steps);
container->add_child(memnew(HSeparator));
// We need to create another GridContainer with the same column count,
// so we can put an HSeparator above
child_container = memnew(GridContainer);
child_container->set_columns(2);
container->add_child(child_container);
label = memnew(Label);
label->set_text(TTR("Rotation Offset:"));
child_container->add_child(label);
label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
rotation_offset = memnew(SpinBox);
rotation_offset->set_min(-SPIN_BOX_ROTATION_RANGE);
rotation_offset->set_max(SPIN_BOX_ROTATION_RANGE);
rotation_offset->set_suffix("deg");
rotation_offset->set_h_size_flags(Control::SIZE_EXPAND_FILL);
rotation_offset->set_select_all_on_focus(true);
child_container->add_child(rotation_offset);
label = memnew(Label);
label->set_text(TTR("Rotation Step:"));
child_container->add_child(label);
label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
rotation_step = memnew(SpinBox);
rotation_step->set_min(-SPIN_BOX_ROTATION_RANGE);
rotation_step->set_max(SPIN_BOX_ROTATION_RANGE);
rotation_step->set_suffix("deg");
rotation_step->set_h_size_flags(Control::SIZE_EXPAND_FILL);
rotation_step->set_select_all_on_focus(true);
child_container->add_child(rotation_step);
container->add_child(memnew(HSeparator));
child_container = memnew(GridContainer);
child_container->set_columns(2);
container->add_child(child_container);
label = memnew(Label);
label->set_text(TTR("Scale Step:"));
child_container->add_child(label);
label->set_h_size_flags(Control::SIZE_EXPAND_FILL);
scale_step = memnew(SpinBox);
scale_step->set_min(SPIN_BOX_SCALE_MIN);
scale_step->set_max(SPIN_BOX_SCALE_MAX);
scale_step->set_allow_greater(true);
scale_step->set_h_size_flags(Control::SIZE_EXPAND_FILL);
scale_step->set_step(0.01f);
scale_step->set_select_all_on_focus(true);
child_container->add_child(scale_step);
}
void set_fields(const Point2 p_grid_offset, const Point2 p_grid_step, const int p_primary_grid_steps, const real_t p_rotation_offset, const real_t p_rotation_step, const real_t p_scale_step) {
grid_offset_x->set_value(p_grid_offset.x);
grid_offset_y->set_value(p_grid_offset.y);
grid_step_x->set_value(p_grid_step.x);
grid_step_y->set_value(p_grid_step.y);
primary_grid_steps->set_value(p_primary_grid_steps);
rotation_offset->set_value(Math::rad_to_deg(p_rotation_offset));
rotation_step->set_value(Math::rad_to_deg(p_rotation_step));
scale_step->set_value(p_scale_step);
}
void get_fields(Point2 &p_grid_offset, Point2 &p_grid_step, int &p_primary_grid_steps, real_t &p_rotation_offset, real_t &p_rotation_step, real_t &p_scale_step) {
p_grid_offset = Point2(grid_offset_x->get_value(), grid_offset_y->get_value());
p_grid_step = Point2(grid_step_x->get_value(), grid_step_y->get_value());
p_primary_grid_steps = int(primary_grid_steps->get_value());
p_rotation_offset = Math::deg_to_rad(rotation_offset->get_value());
p_rotation_step = Math::deg_to_rad(rotation_step->get_value());
p_scale_step = scale_step->get_value();
}
};
bool CanvasItemEditor::_is_node_locked(const Node *p_node) const {
return p_node->get_meta("_edit_lock_", false);
}
bool CanvasItemEditor::_is_node_movable(const Node *p_node, bool p_popup_warning) {
if (_is_node_locked(p_node)) {
return false;
}
if (Object::cast_to<Control>(p_node) && Object::cast_to<Container>(p_node->get_parent())) {
if (p_popup_warning) {
EditorToaster::get_singleton()->popup_str("Children of a container get their position and size determined only by their parent.", EditorToaster::SEVERITY_WARNING);
}
return false;
}
return true;
}
void CanvasItemEditor::_snap_if_closer_float(
const real_t p_value,
real_t &r_current_snap, SnapTarget &r_current_snap_target,
const real_t p_target_value, const SnapTarget p_snap_target,
const real_t p_radius) {
const real_t radius = p_radius / zoom;
const real_t dist = Math::abs(p_value - p_target_value);
if ((p_radius < 0 || dist < radius) && (r_current_snap_target == SNAP_TARGET_NONE || dist < Math::abs(r_current_snap - p_value))) {
r_current_snap = p_target_value;
r_current_snap_target = p_snap_target;
}
}
void CanvasItemEditor::_snap_if_closer_point(
Point2 p_value,
Point2 &r_current_snap, SnapTarget (&r_current_snap_target)[2],
Point2 p_target_value, const SnapTarget p_snap_target,
const real_t rotation,
const real_t p_radius) {
Transform2D rot_trans = Transform2D(rotation, Point2());
p_value = rot_trans.inverse().xform(p_value);
p_target_value = rot_trans.inverse().xform(p_target_value);
r_current_snap = rot_trans.inverse().xform(r_current_snap);
_snap_if_closer_float(
p_value.x,
r_current_snap.x,
r_current_snap_target[0],
p_target_value.x,
p_snap_target,
p_radius);
_snap_if_closer_float(
p_value.y,
r_current_snap.y,
r_current_snap_target[1],
p_target_value.y,
p_snap_target,
p_radius);
r_current_snap = rot_trans.xform(r_current_snap);
}
void CanvasItemEditor::_snap_other_nodes(
const Point2 p_value,
const Transform2D p_transform_to_snap,
Point2 &r_current_snap, SnapTarget (&r_current_snap_target)[2],
const SnapTarget p_snap_target, List<const CanvasItem *> p_exceptions,
const Node *p_current) {
const CanvasItem *ci = Object::cast_to<CanvasItem>(p_current);
// Check if the element is in the exception
bool exception = false;
for (const CanvasItem *&E : p_exceptions) {
if (E == p_current) {
exception = true;
break;
}
};
if (ci && !exception) {
Transform2D ci_transform = ci->get_global_transform_with_canvas();
if (fmod(ci_transform.get_rotation() - p_transform_to_snap.get_rotation(), (real_t)360.0) == 0.0) {
if (ci->_edit_use_rect()) {
Point2 begin = ci_transform.xform(ci->_edit_get_rect().get_position());
Point2 end = ci_transform.xform(ci->_edit_get_rect().get_position() + ci->_edit_get_rect().get_size());
_snap_if_closer_point(p_value, r_current_snap, r_current_snap_target, begin, p_snap_target, ci_transform.get_rotation());
_snap_if_closer_point(p_value, r_current_snap, r_current_snap_target, end, p_snap_target, ci_transform.get_rotation());
} else {
Point2 position = ci_transform.xform(Point2());
_snap_if_closer_point(p_value, r_current_snap, r_current_snap_target, position, p_snap_target, ci_transform.get_rotation());
}
}
}
for (int i = 0; i < p_current->get_child_count(); i++) {
_snap_other_nodes(p_value, p_transform_to_snap, r_current_snap, r_current_snap_target, p_snap_target, p_exceptions, p_current->get_child(i));
}
}
Point2 CanvasItemEditor::snap_point(Point2 p_target, unsigned int p_modes, unsigned int p_forced_modes, const CanvasItem *p_self_canvas_item, List<CanvasItem *> p_other_nodes_exceptions) {
snap_target[0] = SNAP_TARGET_NONE;
snap_target[1] = SNAP_TARGET_NONE;
bool is_snap_active = smart_snap_active ^ Input::get_singleton()->is_key_pressed(Key::CTRL);
// Smart snap using the canvas position
Vector2 output = p_target;
real_t rotation = 0.0;
if (p_self_canvas_item) {
rotation = p_self_canvas_item->get_global_transform_with_canvas().get_rotation();
// Parent sides and center
if ((is_snap_active && snap_node_parent && (p_modes & SNAP_NODE_PARENT)) || (p_forced_modes & SNAP_NODE_PARENT)) {
if (const Control *c = Object::cast_to<Control>(p_self_canvas_item)) {
Point2 begin = p_self_canvas_item->get_global_transform_with_canvas().xform(_anchor_to_position(c, Point2(0, 0)));
Point2 end = p_self_canvas_item->get_global_transform_with_canvas().xform(_anchor_to_position(c, Point2(1, 1)));
_snap_if_closer_point(p_target, output, snap_target, begin, SNAP_TARGET_PARENT, rotation);
_snap_if_closer_point(p_target, output, snap_target, (begin + end) / 2.0, SNAP_TARGET_PARENT, rotation);
_snap_if_closer_point(p_target, output, snap_target, end, SNAP_TARGET_PARENT, rotation);
} else if (const CanvasItem *parent_ci = Object::cast_to<CanvasItem>(p_self_canvas_item->get_parent())) {
if (parent_ci->_edit_use_rect()) {
Point2 begin = p_self_canvas_item->get_transform().affine_inverse().xform(parent_ci->_edit_get_rect().get_position());
Point2 end = p_self_canvas_item->get_transform().affine_inverse().xform(parent_ci->_edit_get_rect().get_position() + parent_ci->_edit_get_rect().get_size());
_snap_if_closer_point(p_target, output, snap_target, begin, SNAP_TARGET_PARENT, rotation);
_snap_if_closer_point(p_target, output, snap_target, (begin + end) / 2.0, SNAP_TARGET_PARENT, rotation);
_snap_if_closer_point(p_target, output, snap_target, end, SNAP_TARGET_PARENT, rotation);
} else {
Point2 position = p_self_canvas_item->get_transform().affine_inverse().xform(Point2());
_snap_if_closer_point(p_target, output, snap_target, position, SNAP_TARGET_PARENT, rotation);
}
}
}
// Self anchors
if ((is_snap_active && snap_node_anchors && (p_modes & SNAP_NODE_ANCHORS)) || (p_forced_modes & SNAP_NODE_ANCHORS)) {
if (const Control *c = Object::cast_to<Control>(p_self_canvas_item)) {
Point2 begin = p_self_canvas_item->get_global_transform_with_canvas().xform(_anchor_to_position(c, Point2(c->get_anchor(SIDE_LEFT), c->get_anchor(SIDE_TOP))));
Point2 end = p_self_canvas_item->get_global_transform_with_canvas().xform(_anchor_to_position(c, Point2(c->get_anchor(SIDE_RIGHT), c->get_anchor(SIDE_BOTTOM))));
_snap_if_closer_point(p_target, output, snap_target, begin, SNAP_TARGET_SELF_ANCHORS, rotation);
_snap_if_closer_point(p_target, output, snap_target, end, SNAP_TARGET_SELF_ANCHORS, rotation);
}
}
// Self sides
if ((is_snap_active && snap_node_sides && (p_modes & SNAP_NODE_SIDES)) || (p_forced_modes & SNAP_NODE_SIDES)) {
if (p_self_canvas_item->_edit_use_rect()) {
Point2 begin = p_self_canvas_item->get_global_transform_with_canvas().xform(p_self_canvas_item->_edit_get_rect().get_position());
Point2 end = p_self_canvas_item->get_global_transform_with_canvas().xform(p_self_canvas_item->_edit_get_rect().get_position() + p_self_canvas_item->_edit_get_rect().get_size());
_snap_if_closer_point(p_target, output, snap_target, begin, SNAP_TARGET_SELF, rotation);
_snap_if_closer_point(p_target, output, snap_target, end, SNAP_TARGET_SELF, rotation);
}
}
// Self center
if ((is_snap_active && snap_node_center && (p_modes & SNAP_NODE_CENTER)) || (p_forced_modes & SNAP_NODE_CENTER)) {
if (p_self_canvas_item->_edit_use_rect()) {
Point2 center = p_self_canvas_item->get_global_transform_with_canvas().xform(p_self_canvas_item->_edit_get_rect().get_center());
_snap_if_closer_point(p_target, output, snap_target, center, SNAP_TARGET_SELF, rotation);
} else {
Point2 position = p_self_canvas_item->get_global_transform_with_canvas().xform(Point2());
_snap_if_closer_point(p_target, output, snap_target, position, SNAP_TARGET_SELF, rotation);
}
}
}
// Other nodes sides
if ((is_snap_active && snap_other_nodes && (p_modes & SNAP_OTHER_NODES)) || (p_forced_modes & SNAP_OTHER_NODES)) {
Transform2D to_snap_transform;
List<const CanvasItem *> exceptions = List<const CanvasItem *>();
for (const CanvasItem *E : p_other_nodes_exceptions) {
exceptions.push_back(E);
}
if (p_self_canvas_item) {
exceptions.push_back(p_self_canvas_item);
to_snap_transform = p_self_canvas_item->get_global_transform_with_canvas();
}
_snap_other_nodes(
p_target, to_snap_transform,
output, snap_target,
SNAP_TARGET_OTHER_NODE,
exceptions,
get_tree()->get_edited_scene_root());
}
if (((is_snap_active && snap_guides && (p_modes & SNAP_GUIDES)) || (p_forced_modes & SNAP_GUIDES)) && fmod(rotation, (real_t)360.0) == 0.0) {
// Guides.
if (Node *scene = EditorNode::get_singleton()->get_edited_scene()) {
Array vguides = scene->get_meta("_edit_vertical_guides_", Array());
for (int i = 0; i < vguides.size(); i++) {
_snap_if_closer_float(p_target.x, output.x, snap_target[0], vguides[i], SNAP_TARGET_GUIDE);
}
Array hguides = scene->get_meta("_edit_horizontal_guides_", Array());
for (int i = 0; i < hguides.size(); i++) {
_snap_if_closer_float(p_target.y, output.y, snap_target[1], hguides[i], SNAP_TARGET_GUIDE);
}
}
}
if (((grid_snap_active && (p_modes & SNAP_GRID)) || (p_forced_modes & SNAP_GRID)) && fmod(rotation, (real_t)360.0) == 0.0) {
// Grid
Point2 offset = grid_offset;
if (snap_relative) {
List<CanvasItem *> selection = _get_edited_canvas_items();
if (selection.size() == 1 && Object::cast_to<Node2D>(selection[0])) {
offset = Object::cast_to<Node2D>(selection[0])->get_global_position();
} else if (selection.size() > 0) {
offset = _get_encompassing_rect_from_list(selection).position;
}
}
Point2 grid_output;
grid_output.x = Math::snapped(p_target.x - offset.x, grid_step.x * Math::pow(2.0, grid_step_multiplier)) + offset.x;
grid_output.y = Math::snapped(p_target.y - offset.y, grid_step.y * Math::pow(2.0, grid_step_multiplier)) + offset.y;
_snap_if_closer_point(p_target, output, snap_target, grid_output, SNAP_TARGET_GRID, 0.0, -1.0);
}
if (((snap_pixel && (p_modes & SNAP_PIXEL)) || (p_forced_modes & SNAP_PIXEL)) && rotation == 0.0) {
// Pixel
output = output.snapped(Size2(1, 1));
}
snap_transform = Transform2D(rotation, output);
return output;
}
real_t CanvasItemEditor::snap_angle(real_t p_target, real_t p_start) const {
if (((smart_snap_active || snap_rotation) ^ Input::get_singleton()->is_key_pressed(Key::CTRL)) && snap_rotation_step != 0) {
if (snap_relative) {
return Math::snapped(p_target - snap_rotation_offset, snap_rotation_step) + snap_rotation_offset + (p_start - (int)(p_start / snap_rotation_step) * snap_rotation_step);
} else {
return Math::snapped(p_target - snap_rotation_offset, snap_rotation_step) + snap_rotation_offset;
}
} else {
return p_target;
}
}
void CanvasItemEditor::shortcut_input(const Ref<InputEvent> &p_ev) {
ERR_FAIL_COND(p_ev.is_null());
Ref<InputEventKey> k = p_ev;
if (!is_visible_in_tree()) {
return;
}
if (k.is_valid()) {
if (k->get_keycode() == Key::CTRL || k->get_keycode() == Key::ALT || k->get_keycode() == Key::SHIFT) {
viewport->queue_redraw();
}
if (k->is_pressed() && !k->is_ctrl_pressed() && !k->is_echo() && (grid_snap_active || _is_grid_visible())) {
if (multiply_grid_step_shortcut.is_valid() && multiply_grid_step_shortcut->matches_event(p_ev)) {
// Multiply the grid size
grid_step_multiplier = MIN(grid_step_multiplier + 1, 12);
viewport->queue_redraw();
} else if (divide_grid_step_shortcut.is_valid() && divide_grid_step_shortcut->matches_event(p_ev)) {
// Divide the grid size
Point2 new_grid_step = grid_step * Math::pow(2.0, grid_step_multiplier - 1);
if (new_grid_step.x >= 1.0 && new_grid_step.y >= 1.0) {
grid_step_multiplier--;
}
viewport->queue_redraw();
}
}
}
}
Object *CanvasItemEditor::_get_editor_data(Object *p_what) {
CanvasItem *ci = Object::cast_to<CanvasItem>(p_what);
if (!ci) {
return nullptr;
}
return memnew(CanvasItemEditorSelectedItem);
}
void CanvasItemEditor::_keying_changed() {
if (AnimationPlayerEditor::get_singleton()->get_track_editor()->is_visible_in_tree()) {
animation_hb->show();
} else {
animation_hb->hide();
}
}
Rect2 CanvasItemEditor::_get_encompassing_rect_from_list(List<CanvasItem *> p_list) {
ERR_FAIL_COND_V(p_list.is_empty(), Rect2());
// Handles the first element
CanvasItem *ci = p_list.front()->get();
Rect2 rect = Rect2(ci->get_global_transform_with_canvas().xform(ci->_edit_get_rect().get_center()), Size2());
// Expand with the other ones
for (CanvasItem *ci2 : p_list) {
Transform2D xform = ci2->get_global_transform_with_canvas();
Rect2 current_rect = ci2->_edit_get_rect();
rect.expand_to(xform.xform(current_rect.position));
rect.expand_to(xform.xform(current_rect.position + Vector2(current_rect.size.x, 0)));
rect.expand_to(xform.xform(current_rect.position + current_rect.size));
rect.expand_to(xform.xform(current_rect.position + Vector2(0, current_rect.size.y)));
}
return rect;
}
void CanvasItemEditor::_expand_encompassing_rect_using_children(Rect2 &r_rect, const Node *p_node, bool &r_first, const Transform2D &p_parent_xform, const Transform2D &p_canvas_xform, bool include_locked_nodes) {
if (!p_node) {
return;
}
if (Object::cast_to<Viewport>(p_node)) {
return;
}
const CanvasItem *ci = Object::cast_to<CanvasItem>(p_node);
for (int i = p_node->get_child_count() - 1; i >= 0; i--) {
if (ci && !ci->is_set_as_top_level()) {
_expand_encompassing_rect_using_children(r_rect, p_node->get_child(i), r_first, p_parent_xform * ci->get_transform(), p_canvas_xform);
} else {
const CanvasLayer *cl = Object::cast_to<CanvasLayer>(p_node);
_expand_encompassing_rect_using_children(r_rect, p_node->get_child(i), r_first, Transform2D(), cl ? cl->get_transform() : p_canvas_xform);
}
}
if (ci && ci->is_visible_in_tree() && (include_locked_nodes || !_is_node_locked(ci))) {
Transform2D xform = p_canvas_xform;
if (!ci->is_set_as_top_level()) {
xform *= p_parent_xform;
}
xform *= ci->get_transform();
Rect2 rect = ci->_edit_get_rect();
if (r_first) {
r_rect = Rect2(xform.xform(rect.get_center()), Size2());
r_first = false;
}
r_rect.expand_to(xform.xform(rect.position));
r_rect.expand_to(xform.xform(rect.position + Point2(rect.size.x, 0)));
r_rect.expand_to(xform.xform(rect.position + Point2(0, rect.size.y)));
r_rect.expand_to(xform.xform(rect.position + rect.size));
}
}
Rect2 CanvasItemEditor::_get_encompassing_rect(const Node *p_node) {
Rect2 rect;
bool first = true;
_expand_encompassing_rect_using_children(rect, p_node, first);
return rect;
}
void CanvasItemEditor::_find_canvas_items_at_pos(const Point2 &p_pos, Node *p_node, Vector<_SelectResult> &r_items, const Transform2D &p_parent_xform, const Transform2D &p_canvas_xform) {
if (!p_node) {
return;
}
if (Object::cast_to<Viewport>(p_node)) {
return;
}
const real_t grab_distance = EDITOR_GET("editors/polygon_editor/point_grab_radius");
CanvasItem *ci = Object::cast_to<CanvasItem>(p_node);
for (int i = p_node->get_child_count() - 1; i >= 0; i--) {
if (ci) {
if (!ci->is_set_as_top_level()) {
_find_canvas_items_at_pos(p_pos, p_node->get_child(i), r_items, p_parent_xform * ci->get_transform(), p_canvas_xform);
} else {
_find_canvas_items_at_pos(p_pos, p_node->get_child(i), r_items, ci->get_transform(), p_canvas_xform);
}
} else {
CanvasLayer *cl = Object::cast_to<CanvasLayer>(p_node);
_find_canvas_items_at_pos(p_pos, p_node->get_child(i), r_items, Transform2D(), cl ? cl->get_transform() : p_canvas_xform);
}
}
if (ci && ci->is_visible_in_tree()) {
Transform2D xform = p_canvas_xform;
if (!ci->is_set_as_top_level()) {
xform *= p_parent_xform;
}
xform = (xform * ci->get_transform()).affine_inverse();
const real_t local_grab_distance = xform.basis_xform(Vector2(grab_distance, 0)).length() / zoom;
if (ci->_edit_is_selected_on_click(xform.xform(p_pos), local_grab_distance)) {
Node2D *node = Object::cast_to<Node2D>(ci);
_SelectResult res;
res.item = ci;
res.z_index = node ? node->get_z_index() : 0;
res.has_z = node;
r_items.push_back(res);
}
}
}
void CanvasItemEditor::_get_canvas_items_at_pos(const Point2 &p_pos, Vector<_SelectResult> &r_items, bool p_allow_locked) {
Node *scene = EditorNode::get_singleton()->get_edited_scene();
_find_canvas_items_at_pos(p_pos, scene, r_items);
//Remove invalid results
for (int i = 0; i < r_items.size(); i++) {
Node *node = r_items[i].item;
// Make sure the selected node is in the current scene, or editable
if (node && node != get_tree()->get_edited_scene_root()) {
node = scene->get_deepest_editable_node(node);
}
CanvasItem *ci = Object::cast_to<CanvasItem>(node);
if (!p_allow_locked) {
// Replace the node by the group if grouped
while (node && node != scene->get_parent()) {
CanvasItem *ci_tmp = Object::cast_to<CanvasItem>(node);
if (ci_tmp && node->has_meta("_edit_group_")) {
ci = ci_tmp;
}
node = node->get_parent();
}
}
// Check if the canvas item is already in the list (for groups or scenes)
bool duplicate = false;
for (int j = 0; j < i; j++) {
if (r_items[j].item == ci) {
duplicate = true;
break;
}
}
//Remove the item if invalid
if (!ci || duplicate || (ci != scene && ci->get_owner() != scene && !scene->is_editable_instance(ci->get_owner())) || (!p_allow_locked && _is_node_locked(ci))) {
r_items.remove_at(i);
i--;
} else {
r_items.write[i].item = ci;
}
}
}
void CanvasItemEditor::_find_canvas_items_in_rect(const Rect2 &p_rect, Node *p_node, List<CanvasItem *> *r_items, const Transform2D &p_parent_xform, const Transform2D &p_canvas_xform) {
if (!p_node) {
return;
}
if (Object::cast_to<Viewport>(p_node)) {
return;
}
CanvasItem *ci = Object::cast_to<CanvasItem>(p_node);
Node *scene = EditorNode::get_singleton()->get_edited_scene();
if (p_node != scene && !p_node->get_owner()) {
return;
}
bool editable = p_node == scene || p_node->get_owner() == scene || p_node == scene->get_deepest_editable_node(p_node);
bool lock_children = p_node->get_meta("_edit_group_", false);
bool locked = _is_node_locked(p_node);
if (!lock_children || !editable) {
for (int i = p_node->get_child_count() - 1; i >= 0; i--) {
if (ci) {
if (!ci->is_set_as_top_level()) {
_find_canvas_items_in_rect(p_rect, p_node->get_child(i), r_items, p_parent_xform * ci->get_transform(), p_canvas_xform);
} else {
_find_canvas_items_in_rect(p_rect, p_node->get_child(i), r_items, ci->get_transform(), p_canvas_xform);
}
} else {
CanvasLayer *cl = Object::cast_to<CanvasLayer>(p_node);
_find_canvas_items_in_rect(p_rect, p_node->get_child(i), r_items, Transform2D(), cl ? cl->get_transform() : p_canvas_xform);
}
}
}
if (ci && ci->is_visible_in_tree() && !locked && editable) {
Transform2D xform = p_canvas_xform;
if (!ci->is_set_as_top_level()) {
xform *= p_parent_xform;
}
xform *= ci->get_transform();
if (ci->_edit_use_rect()) {
Rect2 rect = ci->_edit_get_rect();
if (p_rect.has_point(xform.xform(rect.position)) &&
p_rect.has_point(xform.xform(rect.position + Vector2(rect.size.x, 0))) &&
p_rect.has_point(xform.xform(rect.position + Vector2(rect.size.x, rect.size.y))) &&
p_rect.has_point(xform.xform(rect.position + Vector2(0, rect.size.y)))) {
r_items->push_back(ci);
}
} else {
if (p_rect.has_point(xform.xform(Point2()))) {
r_items->push_back(ci);
}
}
}
}
bool CanvasItemEditor::_select_click_on_item(CanvasItem *item, Point2 p_click_pos, bool p_append) {
bool still_selected = true;
if (p_append && !editor_selection->get_selected_node_list().is_empty()) {
if (editor_selection->is_selected(item)) {
// Already in the selection, remove it from the selected nodes
editor_selection->remove_node(item);
still_selected = false;
if (editor_selection->get_selected_node_list().size() == 1) {
EditorNode::get_singleton()->push_item(editor_selection->get_selected_node_list()[0]);
}
} else {
// Add the item to the selection
editor_selection->add_node(item);
}
} else {
if (!editor_selection->is_selected(item)) {
// Select a new one and clear previous selection
editor_selection->clear();
editor_selection->add_node(item);
// Reselect
if (Engine::get_singleton()->is_editor_hint()) {
selected_from_canvas = true;
EditorNode::get_singleton()->edit_node(item);
}
}
}
viewport->queue_redraw();
return still_selected;
}
List<CanvasItem *> CanvasItemEditor::_get_edited_canvas_items(bool retrieve_locked, bool remove_canvas_item_if_parent_in_selection) const {
List<CanvasItem *> selection;
for (const KeyValue<Node *, Object *> &E : editor_selection->get_selection()) {
CanvasItem *ci = Object::cast_to<CanvasItem>(E.key);
if (ci && ci->is_visible_in_tree() && ci->get_viewport() == EditorNode::get_singleton()->get_scene_root() && (retrieve_locked || !_is_node_locked(ci))) {
CanvasItemEditorSelectedItem *se = editor_selection->get_node_editor_data<CanvasItemEditorSelectedItem>(ci);
if (se) {
selection.push_back(ci);
}
}
}
if (remove_canvas_item_if_parent_in_selection) {
List<CanvasItem *> filtered_selection;
for (CanvasItem *E : selection) {
if (!selection.find(E->get_parent())) {
filtered_selection.push_back(E);
}
}
return filtered_selection;
} else {
return selection;
}
}
Vector2 CanvasItemEditor::_anchor_to_position(const Control *p_control, Vector2 anchor) {
ERR_FAIL_COND_V(!p_control, Vector2());
Transform2D parent_transform = p_control->get_transform().affine_inverse();
Rect2 parent_rect = p_control->get_parent_anchorable_rect();
if (p_control->is_layout_rtl()) {
return parent_transform.xform(parent_rect.position + Vector2(parent_rect.size.x - parent_rect.size.x * anchor.x, parent_rect.size.y * anchor.y));
} else {
return parent_transform.xform(parent_rect.position + Vector2(parent_rect.size.x * anchor.x, parent_rect.size.y * anchor.y));
}
}
Vector2 CanvasItemEditor::_position_to_anchor(const Control *p_control, Vector2 position) {
ERR_FAIL_COND_V(!p_control, Vector2());
Rect2 parent_rect = p_control->get_parent_anchorable_rect();
Vector2 output;
if (p_control->is_layout_rtl()) {
output.x = (parent_rect.size.x == 0) ? 0.0 : (parent_rect.size.x - p_control->get_transform().xform(position).x - parent_rect.position.x) / parent_rect.size.x;
} else {
output.x = (parent_rect.size.x == 0) ? 0.0 : (p_control->get_transform().xform(position).x - parent_rect.position.x) / parent_rect.size.x;
}
output.y = (parent_rect.size.y == 0) ? 0.0 : (p_control->get_transform().xform(position).y - parent_rect.position.y) / parent_rect.size.y;
return output;
}
void CanvasItemEditor::_save_canvas_item_state(List<CanvasItem *> p_canvas_items, bool save_bones) {
original_transform = Transform2D();
bool transform_stored = false;
for (CanvasItem *ci : p_canvas_items) {
CanvasItemEditorSelectedItem *se = editor_selection->get_node_editor_data<CanvasItemEditorSelectedItem>(ci);
if (se) {
if (!transform_stored) {
original_transform = ci->get_global_transform();
transform_stored = true;
}
se->undo_state = ci->_edit_get_state();
se->pre_drag_xform = ci->get_global_transform_with_canvas();
if (ci->_edit_use_rect()) {
se->pre_drag_rect = ci->_edit_get_rect();
} else {
se->pre_drag_rect = Rect2();
}
}
}
}
void CanvasItemEditor::_restore_canvas_item_state(List<CanvasItem *> p_canvas_items, bool restore_bones) {
for (CanvasItem *ci : drag_selection) {
CanvasItemEditorSelectedItem *se = editor_selection->get_node_editor_data<CanvasItemEditorSelectedItem>(ci);
ci->_edit_set_state(se->undo_state);
}
}
void CanvasItemEditor::_commit_canvas_item_state(List<CanvasItem *> p_canvas_items, String action_name, bool commit_bones) {
List<CanvasItem *> modified_canvas_items;
for (CanvasItem *ci : p_canvas_items) {
Dictionary old_state = editor_selection->get_node_editor_data<CanvasItemEditorSelectedItem>(ci)->undo_state;
Dictionary new_state = ci->_edit_get_state();
if (old_state.hash() != new_state.hash()) {
modified_canvas_items.push_back(ci);
}
}
if (modified_canvas_items.is_empty()) {
return;
}
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
undo_redo->create_action(action_name);
for (CanvasItem *ci : modified_canvas_items) {
CanvasItemEditorSelectedItem *se = editor_selection->get_node_editor_data<CanvasItemEditorSelectedItem>(ci);
if (se) {
undo_redo->add_do_method(ci, "_edit_set_state", ci->_edit_get_state());
undo_redo->add_undo_method(ci, "_edit_set_state", se->undo_state);
if (commit_bones) {
for (const Dictionary &F : se->pre_drag_bones_undo_state) {
ci = Object::cast_to<CanvasItem>(ci->get_parent());
undo_redo->add_do_method(ci, "_edit_set_state", ci->_edit_get_state());
undo_redo->add_undo_method(ci, "_edit_set_state", F);
}
}
}
}
undo_redo->add_do_method(viewport, "queue_redraw");
undo_redo->add_undo_method(viewport, "queue_redraw");
undo_redo->commit_action();
}
void CanvasItemEditor::_snap_changed() {
static_cast<SnapDialog *>(snap_dialog)->get_fields(grid_offset, grid_step, primary_grid_steps, snap_rotation_offset, snap_rotation_step, snap_scale_step);
EditorSettings::get_singleton()->set_project_metadata("2d_editor", "grid_offset", grid_offset);
EditorSettings::get_singleton()->set_project_metadata("2d_editor", "grid_step", grid_step);
EditorSettings::get_singleton()->set_project_metadata("2d_editor", "primary_grid_steps", primary_grid_steps);
EditorSettings::get_singleton()->set_project_metadata("2d_editor", "snap_rotation_offset", snap_rotation_offset);
EditorSettings::get_singleton()->set_project_metadata("2d_editor", "snap_rotation_step", snap_rotation_step);
EditorSettings::get_singleton()->set_project_metadata("2d_editor", "snap_scale_step", snap_scale_step);
grid_step_multiplier = 0;
viewport->queue_redraw();
}
void CanvasItemEditor::_selection_result_pressed(int p_result) {
if (selection_results_menu.size() <= p_result) {
return;
}
CanvasItem *item = selection_results_menu[p_result].item;
if (item) {
_select_click_on_item(item, Point2(), selection_menu_additive_selection);
}
selection_results_menu.clear();
}
void CanvasItemEditor::_selection_menu_hide() {
selection_results.clear();
selection_menu->clear();
selection_menu->reset_size();
}
void CanvasItemEditor::_add_node_pressed(int p_result) {
List<Node *> nodes_to_move;
switch (p_result) {
case ADD_NODE: {
SceneTreeDock::get_singleton()->open_add_child_dialog();
} break;
case ADD_INSTANCE: {
SceneTreeDock::get_singleton()->open_instance_child_dialog();
} break;
case ADD_PASTE: {
nodes_to_move = SceneTreeDock::get_singleton()->paste_nodes();
[[fallthrough]];
}
case ADD_MOVE: {
nodes_to_move = EditorNode::get_singleton()->get_editor_selection()->get_selected_node_list();
if (nodes_to_move.is_empty()) {
return;
}
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
undo_redo->create_action(TTR("Move Node(s) to Position"));
for (Node *node : nodes_to_move) {
CanvasItem *ci = Object::cast_to<CanvasItem>(node);
if (ci) {
Transform2D xform = ci->get_global_transform_with_canvas().affine_inverse() * ci->get_transform();
undo_redo->add_do_method(ci, "_edit_set_position", xform.xform(node_create_position));
undo_redo->add_undo_method(ci, "_edit_set_position", ci->_edit_get_position());
}
}
undo_redo->commit_action();
_reset_create_position();
} break;
}
}
void CanvasItemEditor::_node_created(Node *p_node) {
if (node_create_position == Point2()) {
return;
}
CanvasItem *c = Object::cast_to<CanvasItem>(p_node);
if (c) {
Transform2D xform = c->get_global_transform_with_canvas().affine_inverse() * c->get_transform();
c->_edit_set_position(xform.xform(node_create_position));
}
call_deferred(SNAME("_reset_create_position")); // Defer the call in case more than one node is added.
}
void CanvasItemEditor::_reset_create_position() {
node_create_position = Point2();
}
bool CanvasItemEditor::_is_grid_visible() const {
switch (grid_visibility) {
case GRID_VISIBILITY_SHOW:
return true;
case GRID_VISIBILITY_SHOW_WHEN_SNAPPING:
return grid_snap_active;
case GRID_VISIBILITY_HIDE:
return false;
}
ERR_FAIL_V_MSG(true, "Unexpected grid_visibility value");
}
void CanvasItemEditor::_prepare_grid_menu() {
for (int i = GRID_VISIBILITY_SHOW; i <= GRID_VISIBILITY_HIDE; i++) {
grid_menu->set_item_checked(i, i == grid_visibility);
}
}