245 lines
8.1 KiB
C++
245 lines
8.1 KiB
C++
|
/**************************************************************************/
|
||
|
/* graph_element.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 "graph_element.h"
|
||
|
|
||
|
#include "core/string/translation.h"
|
||
|
#include "scene/gui/graph_edit.h"
|
||
|
|
||
|
#ifdef TOOLS_ENABLED
|
||
|
void GraphElement::_edit_set_position(const Point2 &p_position) {
|
||
|
GraphEdit *graph = Object::cast_to<GraphEdit>(get_parent());
|
||
|
if (graph) {
|
||
|
Point2 offset = (p_position + graph->get_scroll_offset()) * graph->get_zoom();
|
||
|
set_position_offset(offset);
|
||
|
}
|
||
|
set_position(p_position);
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
void GraphElement::_resort() {
|
||
|
Size2 size = get_size();
|
||
|
|
||
|
for (int i = 0; i < get_child_count(); i++) {
|
||
|
Control *child = Object::cast_to<Control>(get_child(i));
|
||
|
if (!child || !child->is_visible_in_tree()) {
|
||
|
continue;
|
||
|
}
|
||
|
if (child->is_set_as_top_level()) {
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
fit_child_in_rect(child, Rect2(Point2(), size));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Size2 GraphElement::get_minimum_size() const {
|
||
|
Size2 minsize;
|
||
|
for (int i = 0; i < get_child_count(); i++) {
|
||
|
Control *child = Object::cast_to<Control>(get_child(i));
|
||
|
if (!child) {
|
||
|
continue;
|
||
|
}
|
||
|
if (child->is_set_as_top_level()) {
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
Size2i size = child->get_combined_minimum_size();
|
||
|
|
||
|
minsize.width = MAX(minsize.width, size.width);
|
||
|
minsize.height = MAX(minsize.height, size.height);
|
||
|
}
|
||
|
|
||
|
return minsize;
|
||
|
}
|
||
|
|
||
|
void GraphElement::_notification(int p_what) {
|
||
|
switch (p_what) {
|
||
|
case NOTIFICATION_SORT_CHILDREN: {
|
||
|
_resort();
|
||
|
} break;
|
||
|
|
||
|
case NOTIFICATION_LAYOUT_DIRECTION_CHANGED:
|
||
|
case NOTIFICATION_TRANSLATION_CHANGED:
|
||
|
case NOTIFICATION_THEME_CHANGED: {
|
||
|
update_minimum_size();
|
||
|
queue_redraw();
|
||
|
} break;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void GraphElement::_validate_property(PropertyInfo &p_property) const {
|
||
|
Control::_validate_property(p_property);
|
||
|
GraphEdit *graph = Object::cast_to<GraphEdit>(get_parent());
|
||
|
if (graph) {
|
||
|
if (p_property.name == "position") {
|
||
|
p_property.usage |= PROPERTY_USAGE_READ_ONLY;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void GraphElement::set_position_offset(const Vector2 &p_offset) {
|
||
|
if (position_offset == p_offset) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
position_offset = p_offset;
|
||
|
emit_signal(SNAME("position_offset_changed"));
|
||
|
queue_redraw();
|
||
|
}
|
||
|
|
||
|
Vector2 GraphElement::get_position_offset() const {
|
||
|
return position_offset;
|
||
|
}
|
||
|
|
||
|
void GraphElement::set_selected(bool p_selected) {
|
||
|
if (!is_selectable() || selected == p_selected) {
|
||
|
return;
|
||
|
}
|
||
|
selected = p_selected;
|
||
|
emit_signal(p_selected ? SNAME("node_selected") : SNAME("node_deselected"));
|
||
|
queue_redraw();
|
||
|
}
|
||
|
|
||
|
bool GraphElement::is_selected() {
|
||
|
return selected;
|
||
|
}
|
||
|
|
||
|
void GraphElement::set_drag(bool p_drag) {
|
||
|
if (p_drag) {
|
||
|
drag_from = get_position_offset();
|
||
|
} else {
|
||
|
emit_signal(SNAME("dragged"), drag_from, get_position_offset()); // Required for undo/redo.
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Vector2 GraphElement::get_drag_from() {
|
||
|
return drag_from;
|
||
|
}
|
||
|
|
||
|
void GraphElement::gui_input(const Ref<InputEvent> &p_ev) {
|
||
|
ERR_FAIL_COND(p_ev.is_null());
|
||
|
|
||
|
Ref<InputEventMouseButton> mb = p_ev;
|
||
|
if (mb.is_valid()) {
|
||
|
ERR_FAIL_COND_MSG(get_parent_control() == nullptr, "GraphElement must be the child of a GraphEdit node.");
|
||
|
|
||
|
if (mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
|
||
|
Vector2 mpos = mb->get_position();
|
||
|
|
||
|
Ref<Texture2D> resizer = get_theme_icon(SNAME("resizer"));
|
||
|
|
||
|
if (resizable && mpos.x > get_size().x - resizer->get_width() && mpos.y > get_size().y - resizer->get_height()) {
|
||
|
resizing = true;
|
||
|
resizing_from = mpos;
|
||
|
resizing_from_size = get_size();
|
||
|
accept_event();
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
emit_signal(SNAME("raise_request"));
|
||
|
}
|
||
|
|
||
|
if (!mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
|
||
|
resizing = false;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
Ref<InputEventMouseMotion> mm = p_ev;
|
||
|
if (resizing && mm.is_valid()) {
|
||
|
Vector2 mpos = mm->get_position();
|
||
|
Vector2 diff = mpos - resizing_from;
|
||
|
|
||
|
emit_signal(SNAME("resize_request"), resizing_from_size + diff);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void GraphElement::set_resizable(bool p_enable) {
|
||
|
if (resizable == p_enable) {
|
||
|
return;
|
||
|
}
|
||
|
resizable = p_enable;
|
||
|
queue_redraw();
|
||
|
}
|
||
|
|
||
|
bool GraphElement::is_resizable() const {
|
||
|
return resizable;
|
||
|
}
|
||
|
|
||
|
void GraphElement::set_draggable(bool p_draggable) {
|
||
|
draggable = p_draggable;
|
||
|
}
|
||
|
|
||
|
bool GraphElement::is_draggable() {
|
||
|
return draggable;
|
||
|
}
|
||
|
|
||
|
void GraphElement::set_selectable(bool p_selectable) {
|
||
|
if (!p_selectable) {
|
||
|
set_selected(false);
|
||
|
}
|
||
|
selectable = p_selectable;
|
||
|
}
|
||
|
|
||
|
bool GraphElement::is_selectable() {
|
||
|
return selectable;
|
||
|
}
|
||
|
|
||
|
void GraphElement::_bind_methods() {
|
||
|
ClassDB::bind_method(D_METHOD("set_resizable", "resizable"), &GraphElement::set_resizable);
|
||
|
ClassDB::bind_method(D_METHOD("is_resizable"), &GraphElement::is_resizable);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("set_draggable", "draggable"), &GraphElement::set_draggable);
|
||
|
ClassDB::bind_method(D_METHOD("is_draggable"), &GraphElement::is_draggable);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("set_selectable", "selectable"), &GraphElement::set_selectable);
|
||
|
ClassDB::bind_method(D_METHOD("is_selectable"), &GraphElement::is_selectable);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("set_selected", "selected"), &GraphElement::set_selected);
|
||
|
ClassDB::bind_method(D_METHOD("is_selected"), &GraphElement::is_selected);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("set_position_offset", "offset"), &GraphElement::set_position_offset);
|
||
|
ClassDB::bind_method(D_METHOD("get_position_offset"), &GraphElement::get_position_offset);
|
||
|
|
||
|
ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "position_offset"), "set_position_offset", "get_position_offset");
|
||
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "resizable"), "set_resizable", "is_resizable");
|
||
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "draggable"), "set_draggable", "is_draggable");
|
||
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "selectable"), "set_selectable", "is_selectable");
|
||
|
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "selected"), "set_selected", "is_selected");
|
||
|
|
||
|
ADD_SIGNAL(MethodInfo("position_offset_changed"));
|
||
|
ADD_SIGNAL(MethodInfo("node_selected"));
|
||
|
ADD_SIGNAL(MethodInfo("node_deselected"));
|
||
|
ADD_SIGNAL(MethodInfo("dragged", PropertyInfo(Variant::VECTOR2, "from"), PropertyInfo(Variant::VECTOR2, "to")));
|
||
|
ADD_SIGNAL(MethodInfo("raise_request"));
|
||
|
ADD_SIGNAL(MethodInfo("close_request"));
|
||
|
ADD_SIGNAL(MethodInfo("resize_request", PropertyInfo(Variant::VECTOR2, "new_minsize")));
|
||
|
}
|