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656 lines
22 KiB
C++
656 lines
22 KiB
C++
/**************************************************************************/
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/* control.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef CONTROL_H
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#define CONTROL_H
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#include "core/math/transform_2d.h"
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#include "core/object/gdvirtual.gen.inc"
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#include "core/templates/rid.h"
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#include "scene/main/canvas_item.h"
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#include "scene/main/timer.h"
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#include "scene/resources/theme.h"
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class Viewport;
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class Label;
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class Panel;
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class ThemeOwner;
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class ThemeContext;
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class Control : public CanvasItem {
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GDCLASS(Control, CanvasItem);
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public:
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enum Anchor {
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ANCHOR_BEGIN = 0,
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ANCHOR_END = 1
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};
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enum GrowDirection {
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GROW_DIRECTION_BEGIN,
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GROW_DIRECTION_END,
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GROW_DIRECTION_BOTH
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};
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enum FocusMode {
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FOCUS_NONE,
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FOCUS_CLICK,
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FOCUS_ALL
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};
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enum SizeFlags {
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SIZE_SHRINK_BEGIN = 0,
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SIZE_FILL = 1,
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SIZE_EXPAND = 2,
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SIZE_SHRINK_CENTER = 4,
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SIZE_SHRINK_END = 8,
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SIZE_EXPAND_FILL = SIZE_EXPAND | SIZE_FILL,
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};
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enum MouseFilter {
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MOUSE_FILTER_STOP,
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MOUSE_FILTER_PASS,
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MOUSE_FILTER_IGNORE
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};
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enum CursorShape {
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CURSOR_ARROW,
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CURSOR_IBEAM,
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CURSOR_POINTING_HAND,
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CURSOR_CROSS,
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CURSOR_WAIT,
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CURSOR_BUSY,
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CURSOR_DRAG,
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CURSOR_CAN_DROP,
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CURSOR_FORBIDDEN,
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CURSOR_VSIZE,
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CURSOR_HSIZE,
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CURSOR_BDIAGSIZE,
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CURSOR_FDIAGSIZE,
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CURSOR_MOVE,
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CURSOR_VSPLIT,
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CURSOR_HSPLIT,
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CURSOR_HELP,
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CURSOR_MAX
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};
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enum LayoutPreset {
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PRESET_TOP_LEFT,
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PRESET_TOP_RIGHT,
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PRESET_BOTTOM_LEFT,
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PRESET_BOTTOM_RIGHT,
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PRESET_CENTER_LEFT,
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PRESET_CENTER_TOP,
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PRESET_CENTER_RIGHT,
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PRESET_CENTER_BOTTOM,
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PRESET_CENTER,
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PRESET_LEFT_WIDE,
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PRESET_TOP_WIDE,
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PRESET_RIGHT_WIDE,
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PRESET_BOTTOM_WIDE,
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PRESET_VCENTER_WIDE,
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PRESET_HCENTER_WIDE,
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PRESET_FULL_RECT
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};
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enum LayoutPresetMode {
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PRESET_MODE_MINSIZE,
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PRESET_MODE_KEEP_WIDTH,
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PRESET_MODE_KEEP_HEIGHT,
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PRESET_MODE_KEEP_SIZE
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};
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enum LayoutMode {
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LAYOUT_MODE_POSITION,
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LAYOUT_MODE_ANCHORS,
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LAYOUT_MODE_CONTAINER,
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LAYOUT_MODE_UNCONTROLLED,
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};
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enum LayoutDirection {
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LAYOUT_DIRECTION_INHERITED,
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LAYOUT_DIRECTION_LOCALE,
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LAYOUT_DIRECTION_LTR,
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LAYOUT_DIRECTION_RTL
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};
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enum TextDirection {
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TEXT_DIRECTION_AUTO = TextServer::DIRECTION_AUTO,
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TEXT_DIRECTION_LTR = TextServer::DIRECTION_LTR,
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TEXT_DIRECTION_RTL = TextServer::DIRECTION_RTL,
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TEXT_DIRECTION_INHERITED = TextServer::DIRECTION_INHERITED,
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};
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private:
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struct CComparator {
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bool operator()(const Control *p_a, const Control *p_b) const {
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if (p_a->get_canvas_layer() == p_b->get_canvas_layer()) {
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return p_b->is_greater_than(p_a);
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}
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return p_a->get_canvas_layer() < p_b->get_canvas_layer();
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}
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};
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// This Data struct is to avoid namespace pollution in derived classes.
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struct Data {
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bool initialized = false;
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// Global relations.
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List<Control *>::Element *RI = nullptr;
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Control *parent_control = nullptr;
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Window *parent_window = nullptr;
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CanvasItem *parent_canvas_item = nullptr;
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Callable forward_drag;
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Callable forward_can_drop;
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Callable forward_drop;
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// Positioning and sizing.
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LayoutMode stored_layout_mode = LayoutMode::LAYOUT_MODE_POSITION;
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bool stored_use_custom_anchors = false;
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real_t offset[4] = { 0.0, 0.0, 0.0, 0.0 };
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real_t anchor[4] = { ANCHOR_BEGIN, ANCHOR_BEGIN, ANCHOR_BEGIN, ANCHOR_BEGIN };
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FocusMode focus_mode = FOCUS_NONE;
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GrowDirection h_grow = GROW_DIRECTION_END;
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GrowDirection v_grow = GROW_DIRECTION_END;
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real_t rotation = 0.0;
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Vector2 scale = Vector2(1, 1);
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Vector2 pivot_offset;
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Point2 pos_cache;
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Size2 size_cache;
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Size2 minimum_size_cache;
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bool minimum_size_valid = false;
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Size2 last_minimum_size;
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bool updating_last_minimum_size = false;
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bool block_minimum_size_adjust = false;
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bool size_warning = true;
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// Container sizing.
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BitField<SizeFlags> h_size_flags = SIZE_FILL;
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BitField<SizeFlags> v_size_flags = SIZE_FILL;
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real_t expand = 1.0;
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Point2 custom_minimum_size;
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// Input events and rendering.
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MouseFilter mouse_filter = MOUSE_FILTER_STOP;
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bool force_pass_scroll_events = true;
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bool clip_contents = false;
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bool disable_visibility_clip = false;
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CursorShape default_cursor = CURSOR_ARROW;
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// Focus.
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NodePath focus_neighbor[4];
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NodePath focus_next;
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NodePath focus_prev;
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ObjectID shortcut_context;
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// Theming.
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ThemeOwner *theme_owner = nullptr;
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Ref<Theme> theme;
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StringName theme_type_variation;
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bool bulk_theme_override = false;
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Theme::ThemeIconMap theme_icon_override;
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Theme::ThemeStyleMap theme_style_override;
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Theme::ThemeFontMap theme_font_override;
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Theme::ThemeFontSizeMap theme_font_size_override;
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Theme::ThemeColorMap theme_color_override;
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Theme::ThemeConstantMap theme_constant_override;
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mutable HashMap<StringName, Theme::ThemeIconMap> theme_icon_cache;
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mutable HashMap<StringName, Theme::ThemeStyleMap> theme_style_cache;
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mutable HashMap<StringName, Theme::ThemeFontMap> theme_font_cache;
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mutable HashMap<StringName, Theme::ThemeFontSizeMap> theme_font_size_cache;
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mutable HashMap<StringName, Theme::ThemeColorMap> theme_color_cache;
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mutable HashMap<StringName, Theme::ThemeConstantMap> theme_constant_cache;
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// Internationalization.
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LayoutDirection layout_dir = LAYOUT_DIRECTION_INHERITED;
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bool is_rtl_dirty = true;
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bool is_rtl = false;
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bool auto_translate = true;
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bool localize_numeral_system = true;
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// Extra properties.
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String tooltip;
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} data;
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// Dynamic properties.
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static constexpr unsigned properties_managed_by_container_count = 12;
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static String properties_managed_by_container[properties_managed_by_container_count];
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// Global relations.
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friend class Viewport;
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// Positioning and sizing.
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void _update_canvas_item_transform();
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Transform2D _get_internal_transform() const;
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void _set_anchor(Side p_side, real_t p_anchor);
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void _set_position(const Point2 &p_point);
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void _set_global_position(const Point2 &p_point);
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void _set_size(const Size2 &p_size);
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void _compute_offsets(Rect2 p_rect, const real_t p_anchors[4], real_t (&r_offsets)[4]);
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void _compute_anchors(Rect2 p_rect, const real_t p_offsets[4], real_t (&r_anchors)[4]);
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void _set_layout_mode(LayoutMode p_mode);
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void _update_layout_mode();
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LayoutMode _get_layout_mode() const;
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LayoutMode _get_default_layout_mode() const;
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void _set_anchors_layout_preset(int p_preset);
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int _get_anchors_layout_preset() const;
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void _update_minimum_size_cache();
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void _update_minimum_size();
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void _size_changed();
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void _top_level_changed() override {} // Controls don't need to do anything, only other CanvasItems.
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void _top_level_changed_on_parent() override;
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void _clear_size_warning();
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// Input events.
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void _call_gui_input(const Ref<InputEvent> &p_event);
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// Focus.
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void _window_find_focus_neighbor(const Vector2 &p_dir, Node *p_at, const Point2 *p_points, real_t p_min, real_t &r_closest_dist, Control **r_closest);
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Control *_get_focus_neighbor(Side p_side, int p_count = 0);
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// Theming.
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void _theme_changed();
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void _notify_theme_override_changed();
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void _invalidate_theme_cache();
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// Extra properties.
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String get_tooltip_text() const;
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protected:
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// Dynamic properties.
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bool _set(const StringName &p_name, const Variant &p_value);
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bool _get(const StringName &p_name, Variant &r_ret) const;
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void _get_property_list(List<PropertyInfo> *p_list) const;
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void _validate_property(PropertyInfo &p_property) const;
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bool _property_can_revert(const StringName &p_name) const;
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bool _property_get_revert(const StringName &p_name, Variant &r_property) const;
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// Theming.
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virtual void _update_theme_item_cache();
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// Internationalization.
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virtual TypedArray<Vector3i> structured_text_parser(TextServer::StructuredTextParser p_parser_type, const Array &p_args, const String &p_text) const;
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// Base object overrides.
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void _notification(int p_notification);
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static void _bind_methods();
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// Exposed virtual methods.
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GDVIRTUAL1RC(bool, _has_point, Vector2)
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GDVIRTUAL2RC(TypedArray<Vector3i>, _structured_text_parser, Array, String)
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GDVIRTUAL0RC(Vector2, _get_minimum_size)
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GDVIRTUAL1RC(String, _get_tooltip, Vector2)
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GDVIRTUAL1R(Variant, _get_drag_data, Vector2)
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GDVIRTUAL2RC(bool, _can_drop_data, Vector2, Variant)
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GDVIRTUAL2(_drop_data, Vector2, Variant)
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GDVIRTUAL1RC(Object *, _make_custom_tooltip, String)
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GDVIRTUAL1(_gui_input, Ref<InputEvent>)
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public:
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enum {
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NOTIFICATION_RESIZED = 40,
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NOTIFICATION_MOUSE_ENTER = 41,
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NOTIFICATION_MOUSE_EXIT = 42,
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NOTIFICATION_FOCUS_ENTER = 43,
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NOTIFICATION_FOCUS_EXIT = 44,
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NOTIFICATION_THEME_CHANGED = 45,
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NOTIFICATION_SCROLL_BEGIN = 47,
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NOTIFICATION_SCROLL_END = 48,
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NOTIFICATION_LAYOUT_DIRECTION_CHANGED = 49,
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};
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// Editor plugin interoperability.
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// TODO: Decouple controls from their editor plugin and get rid of this.
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#ifdef TOOLS_ENABLED
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virtual Dictionary _edit_get_state() const override;
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virtual void _edit_set_state(const Dictionary &p_state) override;
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virtual void _edit_set_position(const Point2 &p_position) override;
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virtual Point2 _edit_get_position() const override;
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virtual void _edit_set_scale(const Size2 &p_scale) override;
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virtual Size2 _edit_get_scale() const override;
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virtual void _edit_set_rect(const Rect2 &p_edit_rect) override;
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virtual Rect2 _edit_get_rect() const override;
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virtual bool _edit_use_rect() const override;
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virtual void _edit_set_rotation(real_t p_rotation) override;
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virtual real_t _edit_get_rotation() const override;
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virtual bool _edit_use_rotation() const override;
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virtual void _edit_set_pivot(const Point2 &p_pivot) override;
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virtual Point2 _edit_get_pivot() const override;
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virtual bool _edit_use_pivot() const override;
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virtual Size2 _edit_get_minimum_size() const override;
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#endif
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virtual void reparent(Node *p_parent, bool p_keep_global_transform = true) override;
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// Editor integration.
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virtual void get_argument_options(const StringName &p_function, int p_idx, List<String> *r_options) const override;
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PackedStringArray get_configuration_warnings() const override;
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virtual bool is_text_field() const;
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// Global relations.
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bool is_top_level_control() const;
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Control *get_parent_control() const;
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Window *get_parent_window() const;
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Control *get_root_parent_control() const;
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Size2 get_parent_area_size() const;
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Rect2 get_parent_anchorable_rect() const;
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// Positioning and sizing.
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virtual Transform2D get_transform() const override;
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void set_anchor(Side p_side, real_t p_anchor, bool p_keep_offset = true, bool p_push_opposite_anchor = true);
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real_t get_anchor(Side p_side) const;
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void set_offset(Side p_side, real_t p_value);
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real_t get_offset(Side p_side) const;
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void set_anchor_and_offset(Side p_side, real_t p_anchor, real_t p_pos, bool p_push_opposite_anchor = true);
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// TODO: Rename to set_begin/end_offsets ?
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void set_begin(const Point2 &p_point);
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Point2 get_begin() const;
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void set_end(const Point2 &p_point);
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Point2 get_end() const;
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void set_h_grow_direction(GrowDirection p_direction);
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GrowDirection get_h_grow_direction() const;
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void set_v_grow_direction(GrowDirection p_direction);
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GrowDirection get_v_grow_direction() const;
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void set_anchors_preset(LayoutPreset p_preset, bool p_keep_offsets = true);
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void set_offsets_preset(LayoutPreset p_preset, LayoutPresetMode p_resize_mode = PRESET_MODE_MINSIZE, int p_margin = 0);
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void set_anchors_and_offsets_preset(LayoutPreset p_preset, LayoutPresetMode p_resize_mode = PRESET_MODE_MINSIZE, int p_margin = 0);
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void set_grow_direction_preset(LayoutPreset p_preset);
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void set_position(const Point2 &p_point, bool p_keep_offsets = false);
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void set_global_position(const Point2 &p_point, bool p_keep_offsets = false);
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Point2 get_position() const;
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Point2 get_global_position() const;
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Point2 get_screen_position() const;
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void set_size(const Size2 &p_size, bool p_keep_offsets = false);
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Size2 get_size() const;
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void reset_size();
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void set_rect(const Rect2 &p_rect); // Reset anchors to begin and set rect, for faster container children sorting.
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Rect2 get_rect() const;
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Rect2 get_global_rect() const;
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Rect2 get_screen_rect() const;
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Rect2 get_anchorable_rect() const override;
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void set_scale(const Vector2 &p_scale);
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Vector2 get_scale() const;
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void set_rotation(real_t p_radians);
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void set_rotation_degrees(real_t p_degrees);
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real_t get_rotation() const;
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real_t get_rotation_degrees() const;
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void set_pivot_offset(const Vector2 &p_pivot);
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Vector2 get_pivot_offset() const;
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void update_minimum_size();
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void set_block_minimum_size_adjust(bool p_block);
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virtual Size2 get_minimum_size() const;
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virtual Size2 get_combined_minimum_size() const;
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void set_custom_minimum_size(const Size2 &p_custom);
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Size2 get_custom_minimum_size() const;
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// Container sizing.
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void set_h_size_flags(BitField<SizeFlags> p_flags);
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BitField<SizeFlags> get_h_size_flags() const;
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void set_v_size_flags(BitField<SizeFlags> p_flags);
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BitField<SizeFlags> get_v_size_flags() const;
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void set_stretch_ratio(real_t p_ratio);
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real_t get_stretch_ratio() const;
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// Input events.
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virtual void gui_input(const Ref<InputEvent> &p_event);
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void accept_event();
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virtual bool has_point(const Point2 &p_point) const;
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void set_mouse_filter(MouseFilter p_filter);
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MouseFilter get_mouse_filter() const;
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void set_force_pass_scroll_events(bool p_force_pass_scroll_events);
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bool is_force_pass_scroll_events() const;
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void warp_mouse(const Point2 &p_position);
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bool is_focus_owner_in_shortcut_context() const;
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void set_shortcut_context(const Node *p_node);
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Node *get_shortcut_context() const;
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// Drag and drop handling.
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virtual void set_drag_forwarding(const Callable &p_drag, const Callable &p_can_drop, const Callable &p_drop);
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virtual Variant get_drag_data(const Point2 &p_point);
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virtual bool can_drop_data(const Point2 &p_point, const Variant &p_data) const;
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virtual void drop_data(const Point2 &p_point, const Variant &p_data);
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void set_drag_preview(Control *p_control);
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void force_drag(const Variant &p_data, Control *p_control);
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bool is_drag_successful() const;
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// Focus.
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void set_focus_mode(FocusMode p_focus_mode);
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FocusMode get_focus_mode() const;
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bool has_focus() const;
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void grab_focus();
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void grab_click_focus();
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void release_focus();
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Control *find_next_valid_focus() const;
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Control *find_prev_valid_focus() const;
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Control *find_valid_focus_neighbor(Side p_size) const;
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void set_focus_neighbor(Side p_side, const NodePath &p_neighbor);
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NodePath get_focus_neighbor(Side p_side) const;
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void set_focus_next(const NodePath &p_next);
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NodePath get_focus_next() const;
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void set_focus_previous(const NodePath &p_prev);
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NodePath get_focus_previous() const;
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// Rendering.
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void set_default_cursor_shape(CursorShape p_shape);
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CursorShape get_default_cursor_shape() const;
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virtual CursorShape get_cursor_shape(const Point2 &p_pos = Point2i()) const;
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void set_clip_contents(bool p_clip);
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bool is_clipping_contents();
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void set_disable_visibility_clip(bool p_ignore);
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bool is_visibility_clip_disabled() const;
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// Theming.
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void set_theme_owner_node(Node *p_node);
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Node *get_theme_owner_node() const;
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bool has_theme_owner_node() const;
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void set_theme_context(ThemeContext *p_context, bool p_propagate = true);
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void set_theme(const Ref<Theme> &p_theme);
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Ref<Theme> get_theme() const;
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void set_theme_type_variation(const StringName &p_theme_type);
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StringName get_theme_type_variation() const;
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void begin_bulk_theme_override();
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void end_bulk_theme_override();
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void add_theme_icon_override(const StringName &p_name, const Ref<Texture2D> &p_icon);
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void add_theme_style_override(const StringName &p_name, const Ref<StyleBox> &p_style);
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void add_theme_font_override(const StringName &p_name, const Ref<Font> &p_font);
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void add_theme_font_size_override(const StringName &p_name, int p_font_size);
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void add_theme_color_override(const StringName &p_name, const Color &p_color);
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void add_theme_constant_override(const StringName &p_name, int p_constant);
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void remove_theme_icon_override(const StringName &p_name);
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void remove_theme_style_override(const StringName &p_name);
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void remove_theme_font_override(const StringName &p_name);
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void remove_theme_font_size_override(const StringName &p_name);
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void remove_theme_color_override(const StringName &p_name);
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void remove_theme_constant_override(const StringName &p_name);
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Ref<Texture2D> get_theme_icon(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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Ref<StyleBox> get_theme_stylebox(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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Ref<Font> get_theme_font(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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int get_theme_font_size(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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Color get_theme_color(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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int get_theme_constant(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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Variant get_theme_item(Theme::DataType p_data_type, const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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#ifdef TOOLS_ENABLED
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Ref<Texture2D> get_editor_theme_icon(const StringName &p_name) const;
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#endif
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bool has_theme_icon_override(const StringName &p_name) const;
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bool has_theme_stylebox_override(const StringName &p_name) const;
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bool has_theme_font_override(const StringName &p_name) const;
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bool has_theme_font_size_override(const StringName &p_name) const;
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bool has_theme_color_override(const StringName &p_name) const;
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bool has_theme_constant_override(const StringName &p_name) const;
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bool has_theme_icon(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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bool has_theme_stylebox(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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bool has_theme_font(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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bool has_theme_font_size(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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bool has_theme_color(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
|
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bool has_theme_constant(const StringName &p_name, const StringName &p_theme_type = StringName()) const;
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|
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float get_theme_default_base_scale() const;
|
|
Ref<Font> get_theme_default_font() const;
|
|
int get_theme_default_font_size() const;
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|
|
// Internationalization.
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|
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void set_layout_direction(LayoutDirection p_direction);
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|
LayoutDirection get_layout_direction() const;
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virtual bool is_layout_rtl() const;
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|
|
void set_localize_numeral_system(bool p_enable);
|
|
bool is_localizing_numeral_system() const;
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|
|
|
void set_auto_translate(bool p_enable);
|
|
bool is_auto_translating() const;
|
|
_FORCE_INLINE_ String atr(const String p_string) const {
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|
return is_auto_translating() ? tr(p_string) : p_string;
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|
};
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// Extra properties.
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void set_tooltip_text(const String &text);
|
|
virtual String get_tooltip(const Point2 &p_pos) const;
|
|
virtual Control *make_custom_tooltip(const String &p_text) const;
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|
|
Control();
|
|
~Control();
|
|
};
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VARIANT_ENUM_CAST(Control::FocusMode);
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VARIANT_BITFIELD_CAST(Control::SizeFlags);
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VARIANT_ENUM_CAST(Control::CursorShape);
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VARIANT_ENUM_CAST(Control::LayoutPreset);
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|
VARIANT_ENUM_CAST(Control::LayoutPresetMode);
|
|
VARIANT_ENUM_CAST(Control::MouseFilter);
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|
VARIANT_ENUM_CAST(Control::GrowDirection);
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|
VARIANT_ENUM_CAST(Control::Anchor);
|
|
VARIANT_ENUM_CAST(Control::LayoutMode);
|
|
VARIANT_ENUM_CAST(Control::LayoutDirection);
|
|
VARIANT_ENUM_CAST(Control::TextDirection);
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|
|
|
// G = get_drag_data_fw, C = can_drop_data_fw, D = drop_data_fw, U = underscore
|
|
#define SET_DRAG_FORWARDING_CD(from, to) from->set_drag_forwarding(Callable(), callable_mp(this, &to::can_drop_data_fw).bind(from), callable_mp(this, &to::drop_data_fw).bind(from));
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#define SET_DRAG_FORWARDING_CDU(from, to) from->set_drag_forwarding(Callable(), callable_mp(this, &to::_can_drop_data_fw).bind(from), callable_mp(this, &to::_drop_data_fw).bind(from));
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#define SET_DRAG_FORWARDING_GCD(from, to) from->set_drag_forwarding(callable_mp(this, &to::get_drag_data_fw).bind(from), callable_mp(this, &to::can_drop_data_fw).bind(from), callable_mp(this, &to::drop_data_fw).bind(from));
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#define SET_DRAG_FORWARDING_GCDU(from, to) from->set_drag_forwarding(callable_mp(this, &to::_get_drag_data_fw).bind(from), callable_mp(this, &to::_can_drop_data_fw).bind(from), callable_mp(this, &to::_drop_data_fw).bind(from));
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#endif // CONTROL_H
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