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control.cpp
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/**************************************************************************/
/* control.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 "control.h"
#include "container.h"
#include "core/config/project_settings.h"
#include "core/math/geometry_2d.h"
#include "core/object/message_queue.h"
#include "core/os/keyboard.h"
#include "core/os/os.h"
#include "core/string/print_string.h"
#include "core/string/translation.h"
#include "scene/gui/label.h"
#include "scene/gui/panel.h"
#include "scene/main/canvas_layer.h"
#include "scene/main/window.h"
#include "scene/scene_string_names.h"
#include "scene/theme/theme_db.h"
#include "scene/theme/theme_owner.h"
#include "servers/rendering_server.h"
#include "servers/text_server.h"
#ifdef TOOLS_ENABLED
#include "editor/plugins/control_editor_plugin.h"
#endif
// Editor plugin interoperability.
// TODO: Decouple controls from their editor plugin and get rid of this.
#ifdef TOOLS_ENABLED
Dictionary Control::_edit_get_state() const {
Dictionary s;
s["rotation"] = get_rotation();
s["scale"] = get_scale();
s["pivot"] = get_pivot_offset();
Array anchors;
anchors.push_back(get_anchor(SIDE_LEFT));
anchors.push_back(get_anchor(SIDE_TOP));
anchors.push_back(get_anchor(SIDE_RIGHT));
anchors.push_back(get_anchor(SIDE_BOTTOM));
s["anchors"] = anchors;
Array offsets;
offsets.push_back(get_offset(SIDE_LEFT));
offsets.push_back(get_offset(SIDE_TOP));
offsets.push_back(get_offset(SIDE_RIGHT));
offsets.push_back(get_offset(SIDE_BOTTOM));
s["offsets"] = offsets;
s["layout_mode"] = _get_layout_mode();
s["anchors_layout_preset"] = _get_anchors_layout_preset();
return s;
}
void Control::_edit_set_state(const Dictionary &p_state) {
ERR_FAIL_COND((p_state.size() <= 0) ||
!p_state.has("rotation") || !p_state.has("scale") ||
!p_state.has("pivot") || !p_state.has("anchors") || !p_state.has("offsets") ||
!p_state.has("layout_mode") || !p_state.has("anchors_layout_preset"));
Dictionary state = p_state;
set_rotation(state["rotation"]);
set_scale(state["scale"]);
set_pivot_offset(state["pivot"]);
Array anchors = state["anchors"];
// If anchors are not in their default position, force the anchor layout mode in place of position.
LayoutMode _layout = (LayoutMode)(int)state["layout_mode"];
if (_layout == LayoutMode::LAYOUT_MODE_POSITION) {
bool anchors_mode = ((real_t)anchors[0] != 0.0 || (real_t)anchors[1] != 0.0 || (real_t)anchors[2] != 0.0 || (real_t)anchors[3] != 0.0);
if (anchors_mode) {
_layout = LayoutMode::LAYOUT_MODE_ANCHORS;
}
}
_set_layout_mode(_layout);
if (_layout == LayoutMode::LAYOUT_MODE_ANCHORS || _layout == LayoutMode::LAYOUT_MODE_UNCONTROLLED) {
_set_anchors_layout_preset((int)state["anchors_layout_preset"]);
}
data.anchor[SIDE_LEFT] = anchors[0];
data.anchor[SIDE_TOP] = anchors[1];
data.anchor[SIDE_RIGHT] = anchors[2];
data.anchor[SIDE_BOTTOM] = anchors[3];
Array offsets = state["offsets"];
data.offset[SIDE_LEFT] = offsets[0];
data.offset[SIDE_TOP] = offsets[1];
data.offset[SIDE_RIGHT] = offsets[2];
data.offset[SIDE_BOTTOM] = offsets[3];
_size_changed();
}
void Control::_edit_set_position(const Point2 &p_position) {
ERR_FAIL_COND_MSG(!Engine::get_singleton()->is_editor_hint(), "This function can only be used from editor plugins.");
set_position(p_position, ControlEditorToolbar::get_singleton()->is_anchors_mode_enabled() && get_parent_control());
};
Point2 Control::_edit_get_position() const {
return get_position();
};
void Control::_edit_set_scale(const Size2 &p_scale) {
set_scale(p_scale);
}
Size2 Control::_edit_get_scale() const {
return data.scale;
}
void Control::_edit_set_rect(const Rect2 &p_edit_rect) {
ERR_FAIL_COND_MSG(!Engine::get_singleton()->is_editor_hint(), "This function can only be used from editor plugins.");
set_position((get_position() + get_transform().basis_xform(p_edit_rect.position)).snapped(Vector2(1, 1)), ControlEditorToolbar::get_singleton()->is_anchors_mode_enabled());
set_size(p_edit_rect.size.snapped(Vector2(1, 1)), ControlEditorToolbar::get_singleton()->is_anchors_mode_enabled());
}
Rect2 Control::_edit_get_rect() const {
return Rect2(Point2(), get_size());
}
bool Control::_edit_use_rect() const {
return true;
}
void Control::_edit_set_rotation(real_t p_rotation) {
set_rotation(p_rotation);
}
real_t Control::_edit_get_rotation() const {
return get_rotation();
}
bool Control::_edit_use_rotation() const {
return true;
}
void Control::_edit_set_pivot(const Point2 &p_pivot) {
Vector2 delta_pivot = p_pivot - get_pivot_offset();
Vector2 move = Vector2((cos(data.rotation) - 1.0) * delta_pivot.x - sin(data.rotation) * delta_pivot.y, sin(data.rotation) * delta_pivot.x + (cos(data.rotation) - 1.0) * delta_pivot.y);
set_position(get_position() + move);
set_pivot_offset(p_pivot);
}
Point2 Control::_edit_get_pivot() const {
return get_pivot_offset();
}
bool Control::_edit_use_pivot() const {
return true;
}
Size2 Control::_edit_get_minimum_size() const {
return get_combined_minimum_size();
}
#endif
void Control::reparent(Node *p_parent, bool p_keep_global_transform) {
ERR_MAIN_THREAD_GUARD;
Transform2D temp = get_global_transform();
Node::reparent(p_parent);
if (p_keep_global_transform) {
set_global_position(temp.get_origin());
}
}
// Editor integration.
void Control::get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const {
ERR_READ_THREAD_GUARD;
Node::get_argument_options(p_function, p_idx, r_options);
if (p_idx == 0) {
List<StringName> sn;
String pf = p_function;
if (pf == "add_theme_color_override" || pf == "has_theme_color" || pf == "has_theme_color_override" || pf == "get_theme_color") {
ThemeDB::get_singleton()->get_default_theme()->get_color_list(get_class(), &sn);
} else if (pf == "add_theme_style_override" || pf == "has_theme_style" || pf == "has_theme_style_override" || pf == "get_theme_style") {
ThemeDB::get_singleton()->get_default_theme()->get_stylebox_list(get_class(), &sn);
} else if (pf == "add_theme_font_override" || pf == "has_theme_font" || pf == "has_theme_font_override" || pf == "get_theme_font") {
ThemeDB::get_singleton()->get_default_theme()->get_font_list(get_class(), &sn);
} else if (pf == "add_theme_font_size_override" || pf == "has_theme_font_size" || pf == "has_theme_font_size_override" || pf == "get_theme_font_size") {
ThemeDB::get_singleton()->get_default_theme()->get_font_size_list(get_class(), &sn);
} else if (pf == "add_theme_constant_override" || pf == "has_theme_constant" || pf == "has_theme_constant_override" || pf == "get_theme_constant") {
ThemeDB::get_singleton()->get_default_theme()->get_constant_list(get_class(), &sn);
}
sn.sort_custom<StringName::AlphCompare>();
for (const StringName &name : sn) {
r_options->push_back(String(name).quote());
}
}
}
PackedStringArray Control::get_configuration_warnings() const {
ERR_READ_THREAD_GUARD_V(PackedStringArray());
PackedStringArray warnings = Node::get_configuration_warnings();
if (data.mouse_filter == MOUSE_FILTER_IGNORE && !data.tooltip.is_empty()) {
warnings.push_back(RTR("The Hint Tooltip won't be displayed as the control's Mouse Filter is set to \"Ignore\". To solve this, set the Mouse Filter to \"Stop\" or \"Pass\"."));
}
if (get_z_index() != 0) {
warnings.push_back(RTR("Changing the Z index of a control only affects the drawing order, not the input event handling order."));
}
return warnings;
}
bool Control::is_text_field() const {
ERR_READ_THREAD_GUARD_V(false);
return false;
}
// Dynamic properties.
String Control::properties_managed_by_container[] = {
"offset_left",
"offset_top",
"offset_right",
"offset_bottom",
"anchor_left",
"anchor_top",
"anchor_right",
"anchor_bottom",
"position",
"rotation",
"scale",
"size"
};
bool Control::_set(const StringName &p_name, const Variant &p_value) {
ERR_MAIN_THREAD_GUARD_V(false);
String name = p_name;
if (!name.begins_with("theme_override")) {
return false;
}
if (p_value.get_type() == Variant::NIL || (p_value.get_type() == Variant::OBJECT && (Object *)p_value == nullptr)) {
if (name.begins_with("theme_override_icons/")) {
String dname = name.get_slicec('/', 1);
if (data.theme_icon_override.has(dname)) {
data.theme_icon_override[dname]->disconnect("changed", callable_mp(this, &Control::_notify_theme_override_changed));
}
data.theme_icon_override.erase(dname);
_notify_theme_override_changed();
} else if (name.begins_with("theme_override_styles/")) {
String dname = name.get_slicec('/', 1);
if (data.theme_style_override.has(dname)) {
data.theme_style_override[dname]->disconnect("changed", callable_mp(this, &Control::_notify_theme_override_changed));
}
data.theme_style_override.erase(dname);
_notify_theme_override_changed();
} else if (name.begins_with("theme_override_fonts/")) {
String dname = name.get_slicec('/', 1);
if (data.theme_font_override.has(dname)) {
data.theme_font_override[dname]->disconnect("changed", callable_mp(this, &Control::_notify_theme_override_changed));
}
data.theme_font_override.erase(dname);
_notify_theme_override_changed();
} else if (name.begins_with("theme_override_font_sizes/")) {
String dname = name.get_slicec('/', 1);
data.theme_font_size_override.erase(dname);
_notify_theme_override_changed();
} else if (name.begins_with("theme_override_colors/")) {
String dname = name.get_slicec('/', 1);
data.theme_color_override.erase(dname);
_notify_theme_override_changed();
} else if (name.begins_with("theme_override_constants/")) {
String dname = name.get_slicec('/', 1);
data.theme_constant_override.erase(dname);
_notify_theme_override_changed();
} else {
return false;
}
} else {
if (name.begins_with("theme_override_icons/")) {
String dname = name.get_slicec('/', 1);
add_theme_icon_override(dname, p_value);
} else if (name.begins_with("theme_override_styles/")) {
String dname = name.get_slicec('/', 1);
add_theme_style_override(dname, p_value);
} else if (name.begins_with("theme_override_fonts/")) {
String dname = name.get_slicec('/', 1);
add_theme_font_override(dname, p_value);
} else if (name.begins_with("theme_override_font_sizes/")) {
String dname = name.get_slicec('/', 1);
add_theme_font_size_override(dname, p_value);
} else if (name.begins_with("theme_override_colors/")) {
String dname = name.get_slicec('/', 1);
add_theme_color_override(dname, p_value);
} else if (name.begins_with("theme_override_constants/")) {
String dname = name.get_slicec('/', 1);
add_theme_constant_override(dname, p_value);
} else {
return false;
}
}
return true;
}
bool Control::_get(const StringName &p_name, Variant &r_ret) const {
ERR_MAIN_THREAD_GUARD_V(false);
String sname = p_name;
if (!sname.begins_with("theme_override")) {
return false;
}
if (sname.begins_with("theme_override_icons/")) {
String name = sname.get_slicec('/', 1);
r_ret = data.theme_icon_override.has(name) ? Variant(data.theme_icon_override[name]) : Variant();
} else if (sname.begins_with("theme_override_styles/")) {
String name = sname.get_slicec('/', 1);
r_ret = data.theme_style_override.has(name) ? Variant(data.theme_style_override[name]) : Variant();
} else if (sname.begins_with("theme_override_fonts/")) {
String name = sname.get_slicec('/', 1);
r_ret = data.theme_font_override.has(name) ? Variant(data.theme_font_override[name]) : Variant();
} else if (sname.begins_with("theme_override_font_sizes/")) {
String name = sname.get_slicec('/', 1);
r_ret = data.theme_font_size_override.has(name) ? Variant(data.theme_font_size_override[name]) : Variant();
} else if (sname.begins_with("theme_override_colors/")) {
String name = sname.get_slicec('/', 1);
r_ret = data.theme_color_override.has(name) ? Variant(data.theme_color_override[name]) : Variant();
} else if (sname.begins_with("theme_override_constants/")) {
String name = sname.get_slicec('/', 1);
r_ret = data.theme_constant_override.has(name) ? Variant(data.theme_constant_override[name]) : Variant();
} else {
return false;
}
return true;
}
void Control::_get_property_list(List<PropertyInfo> *p_list) const {
ERR_MAIN_THREAD_GUARD;
Ref<Theme> default_theme = ThemeDB::get_singleton()->get_default_theme();
p_list->push_back(PropertyInfo(Variant::NIL, GNAME("Theme Overrides", "theme_override_"), PROPERTY_HINT_NONE, "theme_override_", PROPERTY_USAGE_GROUP));
{
List<StringName> names;
default_theme->get_color_list(get_class_name(), &names);
for (const StringName &E : names) {
uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
if (data.theme_color_override.has(E)) {
usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
}
p_list->push_back(PropertyInfo(Variant::COLOR, PNAME("theme_override_colors") + String("/") + E, PROPERTY_HINT_NONE, "", usage));
}
}
{
List<StringName> names;
default_theme->get_constant_list(get_class_name(), &names);
for (const StringName &E : names) {
uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
if (data.theme_constant_override.has(E)) {
usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
}
p_list->push_back(PropertyInfo(Variant::INT, PNAME("theme_override_constants") + String("/") + E, PROPERTY_HINT_RANGE, "-16384,16384", usage));
}
}
{
List<StringName> names;
default_theme->get_font_list(get_class_name(), &names);
for (const StringName &E : names) {
uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
if (data.theme_font_override.has(E)) {
usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
}
p_list->push_back(PropertyInfo(Variant::OBJECT, PNAME("theme_override_fonts") + String("/") + E, PROPERTY_HINT_RESOURCE_TYPE, "Font", usage));
}
}
{
List<StringName> names;
default_theme->get_font_size_list(get_class_name(), &names);
for (const StringName &E : names) {
uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
if (data.theme_font_size_override.has(E)) {
usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
}
p_list->push_back(PropertyInfo(Variant::INT, PNAME("theme_override_font_sizes") + String("/") + E, PROPERTY_HINT_RANGE, "1,256,1,or_greater,suffix:px", usage));
}
}
{
List<StringName> names;
default_theme->get_icon_list(get_class_name(), &names);
for (const StringName &E : names) {
uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
if (data.theme_icon_override.has(E)) {
usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
}
p_list->push_back(PropertyInfo(Variant::OBJECT, PNAME("theme_override_icons") + String("/") + E, PROPERTY_HINT_RESOURCE_TYPE, "Texture2D", usage));
}
}
{
List<StringName> names;
default_theme->get_stylebox_list(get_class_name(), &names);
for (const StringName &E : names) {
uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
if (data.theme_style_override.has(E)) {
usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
}
p_list->push_back(PropertyInfo(Variant::OBJECT, PNAME("theme_override_styles") + String("/") + E, PROPERTY_HINT_RESOURCE_TYPE, "StyleBox", usage));
}
}
}
void Control::_validate_property(PropertyInfo &p_property) const {
// Update theme type variation options.
if (p_property.name == "theme_type_variation") {
List<StringName> names;
// Only the default theme and the project theme are used for the list of options.
// This is an imposed limitation to simplify the logic needed to leverage those options.
ThemeDB::get_singleton()->get_default_theme()->get_type_variation_list(get_class_name(), &names);
if (ThemeDB::get_singleton()->get_project_theme().is_valid()) {
ThemeDB::get_singleton()->get_project_theme()->get_type_variation_list(get_class_name(), &names);
}
names.sort_custom<StringName::AlphCompare>();
Vector<StringName> unique_names;
String hint_string;
for (const StringName &E : names) {
// Skip duplicate values.
if (unique_names.has(E)) {
continue;
}
hint_string += String(E) + ",";
unique_names.append(E);
}
p_property.hint_string = hint_string;
}
if (p_property.name == "mouse_force_pass_scroll_events") {
// Disable force pass if the control is not stopping the event.
if (data.mouse_filter != MOUSE_FILTER_STOP) {
p_property.usage |= PROPERTY_USAGE_READ_ONLY;
}
}
if (p_property.name == "scale") {
p_property.hint = PROPERTY_HINT_LINK;
}
// Validate which positioning properties should be displayed depending on the parent and the layout mode.
Node *parent_node = get_parent_control();
if (!parent_node) {
// If there is no parent, display both anchor and container options.
// Set the layout mode to be disabled with the proper value.
if (p_property.name == "layout_mode") {
p_property.hint_string = "Position,Anchors,Container,Uncontrolled";
p_property.usage |= PROPERTY_USAGE_READ_ONLY;
}
// Use the layout mode to display or hide advanced anchoring properties.
bool use_custom_anchors = _get_anchors_layout_preset() == -1; // Custom "preset".
if (!use_custom_anchors && (p_property.name.begins_with("anchor_") || p_property.name.begins_with("offset_") || p_property.name.begins_with("grow_"))) {
p_property.usage ^= PROPERTY_USAGE_EDITOR;
}
} else if (Object::cast_to<Container>(parent_node)) {
// If the parent is a container, display only container-related properties.
if (p_property.name.begins_with("anchor_") || p_property.name.begins_with("offset_") || p_property.name.begins_with("grow_") || p_property.name == "anchors_preset") {
p_property.usage ^= PROPERTY_USAGE_DEFAULT;
} else if (p_property.name == "position" || p_property.name == "rotation" || p_property.name == "scale" || p_property.name == "size" || p_property.name == "pivot_offset") {
p_property.usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_READ_ONLY;
} else if (p_property.name == "layout_mode") {
// Set the layout mode to be disabled with the proper value.
p_property.hint_string = "Position,Anchors,Container,Uncontrolled";
p_property.usage |= PROPERTY_USAGE_READ_ONLY;
} else if (p_property.name == "size_flags_horizontal" || p_property.name == "size_flags_vertical") {
// Filter allowed size flags based on the parent container configuration.
Container *parent_container = Object::cast_to<Container>(parent_node);
Vector<int> size_flags;
if (p_property.name == "size_flags_horizontal") {
size_flags = parent_container->get_allowed_size_flags_horizontal();
} else if (p_property.name == "size_flags_vertical") {
size_flags = parent_container->get_allowed_size_flags_vertical();
}
// Enforce the order of the options, regardless of what the container provided.
String hint_string;
if (size_flags.has(SIZE_FILL)) {
hint_string += "Fill:1";
}
if (size_flags.has(SIZE_EXPAND)) {
if (!hint_string.is_empty()) {
hint_string += ",";
}
hint_string += "Expand:2";
}
if (size_flags.has(SIZE_SHRINK_CENTER)) {
if (!hint_string.is_empty()) {
hint_string += ",";
}
hint_string += "Shrink Center:4";
}
if (size_flags.has(SIZE_SHRINK_END)) {
if (!hint_string.is_empty()) {
hint_string += ",";
}
hint_string += "Shrink End:8";
}
if (hint_string.is_empty()) {
p_property.hint_string = "";
p_property.usage |= PROPERTY_USAGE_READ_ONLY;
} else {
p_property.hint_string = hint_string;
}
}
} else {
// If the parent is NOT a container or not a control at all, display only anchoring-related properties.
if (p_property.name.begins_with("size_flags_")) {
p_property.usage ^= PROPERTY_USAGE_EDITOR;
} else if (p_property.name == "layout_mode") {
// Set the layout mode to be enabled with proper options.
p_property.hint_string = "Position,Anchors";
}
// Use the layout mode to display or hide advanced anchoring properties.
LayoutMode _layout = _get_layout_mode();
bool use_anchors = (_layout == LayoutMode::LAYOUT_MODE_ANCHORS || _layout == LayoutMode::LAYOUT_MODE_UNCONTROLLED);
if (!use_anchors && p_property.name == "anchors_preset") {
p_property.usage ^= PROPERTY_USAGE_EDITOR;
}
bool use_custom_anchors = use_anchors && _get_anchors_layout_preset() == -1; // Custom "preset".
if (!use_custom_anchors && (p_property.name.begins_with("anchor_") || p_property.name.begins_with("offset_") || p_property.name.begins_with("grow_"))) {
p_property.usage ^= PROPERTY_USAGE_EDITOR;
}
}
// Disable the property if it's managed by the parent container.
if (!Object::cast_to<Container>(parent_node)) {
return;
}
bool property_is_managed_by_container = false;
for (unsigned i = 0; i < properties_managed_by_container_count; i++) {
property_is_managed_by_container = properties_managed_by_container[i] == p_property.name;
if (property_is_managed_by_container) {
break;
}
}
if (property_is_managed_by_container) {
p_property.usage |= PROPERTY_USAGE_READ_ONLY;
}
}
bool Control::_property_can_revert(const StringName &p_name) const {
if (p_name == "layout_mode" || p_name == "anchors_preset") {
return true;
}
return false;
}
bool Control::_property_get_revert(const StringName &p_name, Variant &r_property) const {
if (p_name == "layout_mode") {
r_property = _get_default_layout_mode();
return true;
} else if (p_name == "anchors_preset") {
r_property = LayoutPreset::PRESET_TOP_LEFT;
return true;
}
return false;
}
// Global relations.
bool Control::is_top_level_control() const {
ERR_READ_THREAD_GUARD_V(false);
return is_inside_tree() && (!data.parent_canvas_item && !data.RI && is_set_as_top_level());
}
Control *Control::get_parent_control() const {
ERR_READ_THREAD_GUARD_V(nullptr);
return data.parent_control;
}
Window *Control::get_parent_window() const {
ERR_READ_THREAD_GUARD_V(nullptr);
return data.parent_window;
}
Control *Control::get_root_parent_control() const {
ERR_READ_THREAD_GUARD_V(nullptr);
const CanvasItem *ci = this;
const Control *root = this;
while (ci) {
const Control *c = Object::cast_to<Control>(ci);
if (c) {
root = c;
if (c->data.RI || c->is_top_level_control()) {
break;
}
}
ci = ci->get_parent_item();
}
return const_cast<Control *>(root);
}
Rect2 Control::get_parent_anchorable_rect() const {
ERR_READ_THREAD_GUARD_V(Rect2());
if (!is_inside_tree()) {
return Rect2();
}
Rect2 parent_rect;
if (data.parent_canvas_item) {
parent_rect = data.parent_canvas_item->get_anchorable_rect();
} else {
#ifdef TOOLS_ENABLED
Node *edited_scene_root = get_tree()->get_edited_scene_root();
Node *scene_root_parent = edited_scene_root ? edited_scene_root->get_parent() : nullptr;
if (scene_root_parent && get_viewport() == scene_root_parent->get_viewport()) {
parent_rect.size = Size2(GLOBAL_GET("display/window/size/viewport_width"), GLOBAL_GET("display/window/size/viewport_height"));
} else {
parent_rect = get_viewport()->get_visible_rect();
}
#else
parent_rect = get_viewport()->get_visible_rect();
#endif
}
return parent_rect;
}
Size2 Control::get_parent_area_size() const {
ERR_READ_THREAD_GUARD_V(Size2());
return get_parent_anchorable_rect().size;
}
// Positioning and sizing.
Transform2D Control::_get_internal_transform() const {
Transform2D rot_scale;
rot_scale.set_rotation_and_scale(data.rotation, data.scale);
Transform2D offset;
offset.set_origin(-data.pivot_offset);
return offset.affine_inverse() * (rot_scale * offset);
}
void Control::_update_canvas_item_transform() {
Transform2D xform = _get_internal_transform();
xform[2] += get_position();
// We use a little workaround to avoid flickering when moving the pivot with _edit_set_pivot()
if (is_inside_tree() && Math::abs(Math::sin(data.rotation * 4.0f)) < 0.00001f && get_viewport()->is_snap_controls_to_pixels_enabled()) {
xform[2] = xform[2].round();
}
RenderingServer::get_singleton()->canvas_item_set_transform(get_canvas_item(), xform);
}
Transform2D Control::get_transform() const {
ERR_READ_THREAD_GUARD_V(Transform2D());
Transform2D xform = _get_internal_transform();
xform[2] += get_position();
return xform;
}
void Control::_top_level_changed_on_parent() {
// Update root control status.
_notification(NOTIFICATION_EXIT_CANVAS);
_notification(NOTIFICATION_ENTER_CANVAS);
}
/// Anchors and offsets.
void Control::_set_anchor(Side p_side, real_t p_anchor) {
set_anchor(p_side, p_anchor);
}
void Control::set_anchor(Side p_side, real_t p_anchor, bool p_keep_offset, bool p_push_opposite_anchor) {
ERR_MAIN_THREAD_GUARD;
ERR_FAIL_INDEX((int)p_side, 4);
Rect2 parent_rect = get_parent_anchorable_rect();
real_t parent_range = (p_side == SIDE_LEFT || p_side == SIDE_RIGHT) ? parent_rect.size.x : parent_rect.size.y;
real_t previous_pos = data.offset[p_side] + data.anchor[p_side] * parent_range;
real_t previous_opposite_pos = data.offset[(p_side + 2) % 4] + data.anchor[(p_side + 2) % 4] * parent_range;
data.anchor[p_side] = p_anchor;
if (((p_side == SIDE_LEFT || p_side == SIDE_TOP) && data.anchor[p_side] > data.anchor[(p_side + 2) % 4]) ||
((p_side == SIDE_RIGHT || p_side == SIDE_BOTTOM) && data.anchor[p_side] < data.anchor[(p_side + 2) % 4])) {
if (p_push_opposite_anchor) {
data.anchor[(p_side + 2) % 4] = data.anchor[p_side];
} else {
data.anchor[p_side] = data.anchor[(p_side + 2) % 4];
}
}
if (!p_keep_offset) {
data.offset[p_side] = previous_pos - data.anchor[p_side] * parent_range;
if (p_push_opposite_anchor) {
data.offset[(p_side + 2) % 4] = previous_opposite_pos - data.anchor[(p_side + 2) % 4] * parent_range;
}
}
if (is_inside_tree()) {
_size_changed();
}
queue_redraw();
}
real_t Control::get_anchor(Side p_side) const {
ERR_READ_THREAD_GUARD_V(0);
ERR_FAIL_INDEX_V(int(p_side), 4, 0.0);
return data.anchor[p_side];
}
void Control::set_offset(Side p_side, real_t p_value) {
ERR_MAIN_THREAD_GUARD;
ERR_FAIL_INDEX((int)p_side, 4);
if (data.offset[p_side] == p_value) {
return;
}
data.offset[p_side] = p_value;
_size_changed();
}
real_t Control::get_offset(Side p_side) const {
ERR_READ_THREAD_GUARD_V(0);
ERR_FAIL_INDEX_V((int)p_side, 4, 0);
return data.offset[p_side];
}
void Control::set_anchor_and_offset(Side p_side, real_t p_anchor, real_t p_pos, bool p_push_opposite_anchor) {
ERR_MAIN_THREAD_GUARD;
set_anchor(p_side, p_anchor, false, p_push_opposite_anchor);
set_offset(p_side, p_pos);
}
void Control::set_begin(const Point2 &p_point) {
ERR_MAIN_THREAD_GUARD;
ERR_FAIL_COND(!isfinite(p_point.x) || !isfinite(p_point.y));
if (data.offset[0] == p_point.x && data.offset[1] == p_point.y) {
return;
}
data.offset[0] = p_point.x;
data.offset[1] = p_point.y;
_size_changed();
}
Point2 Control::get_begin() const {
ERR_READ_THREAD_GUARD_V(Vector2());
return Point2(data.offset[0], data.offset[1]);
}
void Control::set_end(const Point2 &p_point) {
ERR_MAIN_THREAD_GUARD;
if (data.offset[2] == p_point.x && data.offset[3] == p_point.y) {
return;
}
data.offset[2] = p_point.x;
data.offset[3] = p_point.y;
_size_changed();
}
Point2 Control::get_end() const {
ERR_READ_THREAD_GUARD_V(Point2());
return Point2(data.offset[2], data.offset[3]);
}
void Control::set_h_grow_direction(GrowDirection p_direction) {
ERR_MAIN_THREAD_GUARD;
if (data.h_grow == p_direction) {
return;
}
ERR_FAIL_INDEX((int)p_direction, 3);
data.h_grow = p_direction;
_size_changed();
}
Control::GrowDirection Control::get_h_grow_direction() const {
ERR_READ_THREAD_GUARD_V(GROW_DIRECTION_BEGIN);
return data.h_grow;
}
void Control::set_v_grow_direction(GrowDirection p_direction) {
ERR_MAIN_THREAD_GUARD;
if (data.v_grow == p_direction) {
return;
}
ERR_FAIL_INDEX((int)p_direction, 3);
data.v_grow = p_direction;
_size_changed();
}
Control::GrowDirection Control::get_v_grow_direction() const {
ERR_READ_THREAD_GUARD_V(GROW_DIRECTION_BEGIN);
return data.v_grow;
}
void Control::_compute_anchors(Rect2 p_rect, const real_t p_offsets[4], real_t (&r_anchors)[4]) {
Size2 parent_rect_size = get_parent_anchorable_rect().size;
ERR_FAIL_COND(parent_rect_size.x == 0.0);
ERR_FAIL_COND(parent_rect_size.y == 0.0);
real_t x = p_rect.position.x;
if (is_layout_rtl()) {
x = parent_rect_size.x - x - p_rect.size.x;
}
r_anchors[0] = (x - p_offsets[0]) / parent_rect_size.x;
r_anchors[1] = (p_rect.position.y - p_offsets[1]) / parent_rect_size.y;
r_anchors[2] = (x + p_rect.size.x - p_offsets[2]) / parent_rect_size.x;
r_anchors[3] = (p_rect.position.y + p_rect.size.y - p_offsets[3]) / parent_rect_size.y;
}
void Control::_compute_offsets(Rect2 p_rect, const real_t p_anchors[4], real_t (&r_offsets)[4]) {
Size2 parent_rect_size = get_parent_anchorable_rect().size;
real_t x = p_rect.position.x;
if (is_layout_rtl()) {
x = parent_rect_size.x - x - p_rect.size.x;
}
r_offsets[0] = x - (p_anchors[0] * parent_rect_size.x);
r_offsets[1] = p_rect.position.y - (p_anchors[1] * parent_rect_size.y);
r_offsets[2] = x + p_rect.size.x - (p_anchors[2] * parent_rect_size.x);
r_offsets[3] = p_rect.position.y + p_rect.size.y - (p_anchors[3] * parent_rect_size.y);
}
/// Presets and layout modes.
void Control::_set_layout_mode(LayoutMode p_mode) {
bool list_changed = false;
if (data.stored_layout_mode != p_mode) {
list_changed = true;
data.stored_layout_mode = p_mode;
}
if (data.stored_layout_mode == LayoutMode::LAYOUT_MODE_POSITION) {
data.stored_use_custom_anchors = false;
set_anchors_and_offsets_preset(LayoutPreset::PRESET_TOP_LEFT, LayoutPresetMode::PRESET_MODE_KEEP_SIZE);
set_grow_direction_preset(LayoutPreset::PRESET_TOP_LEFT);
}
if (list_changed) {
notify_property_list_changed();
}
}
void Control::_update_layout_mode() {
LayoutMode computed_layout = _get_layout_mode();
if (data.stored_layout_mode != computed_layout) {
data.stored_layout_mode = computed_layout;
notify_property_list_changed();
}
}
Control::LayoutMode Control::_get_layout_mode() const {
Node *parent_node = get_parent_control();
// In these modes the property is read-only.
if (!parent_node) {
return LayoutMode::LAYOUT_MODE_UNCONTROLLED;
} else if (Object::cast_to<Container>(parent_node)) {
return LayoutMode::LAYOUT_MODE_CONTAINER;
}
// If anchors are not in the top-left position, this is definitely in anchors mode.
if (_get_anchors_layout_preset() != (int)LayoutPreset::PRESET_TOP_LEFT) {
return LayoutMode::LAYOUT_MODE_ANCHORS;
}
// Otherwise fallback on what's stored.
return data.stored_layout_mode;
}
Control::LayoutMode Control::_get_default_layout_mode() const {
Node *parent_node = get_parent_control();
// In these modes the property is read-only.
if (!parent_node) {
return LayoutMode::LAYOUT_MODE_UNCONTROLLED;
} else if (Object::cast_to<Container>(parent_node)) {
return LayoutMode::LAYOUT_MODE_CONTAINER;
}
// Otherwise fallback on the position mode.
return LayoutMode::LAYOUT_MODE_POSITION;
}
void Control::_set_anchors_layout_preset(int p_preset) {
if (data.stored_layout_mode != LayoutMode::LAYOUT_MODE_UNCONTROLLED && data.stored_layout_mode != LayoutMode::LAYOUT_MODE_ANCHORS) {
// In other modes the anchor preset is non-operational and shouldn't be set to anything.
return;
}
if (p_preset == -1) {
if (!data.stored_use_custom_anchors) {
data.stored_use_custom_anchors = true;
notify_property_list_changed();
}
return; // Keep settings as is.
}
bool list_changed = false;
if (data.stored_use_custom_anchors) {
list_changed = true;
data.stored_use_custom_anchors = false;
}
LayoutPreset preset = (LayoutPreset)p_preset;
// Set correct anchors.
set_anchors_preset(preset);
// Select correct preset mode.
switch (preset) {
case PRESET_TOP_LEFT:
case PRESET_TOP_RIGHT:
case PRESET_BOTTOM_LEFT:
case PRESET_BOTTOM_RIGHT:
case PRESET_CENTER_LEFT:
case PRESET_CENTER_TOP:
case PRESET_CENTER_RIGHT:
case PRESET_CENTER_BOTTOM:
case PRESET_CENTER:
set_offsets_preset(preset, LayoutPresetMode::PRESET_MODE_KEEP_SIZE);
break;
case PRESET_LEFT_WIDE:
case PRESET_TOP_WIDE:
case PRESET_RIGHT_WIDE:
case PRESET_BOTTOM_WIDE:
case PRESET_VCENTER_WIDE:
case PRESET_HCENTER_WIDE:
case PRESET_FULL_RECT:
set_offsets_preset(preset, LayoutPresetMode::PRESET_MODE_MINSIZE);
break;
}
// Select correct grow directions.
set_grow_direction_preset(preset);
if (list_changed) {
notify_property_list_changed();
}
}
int Control::_get_anchors_layout_preset() const {
// If this is a layout mode that doesn't rely on anchors, avoid excessive checks.