godot/editor/plugins/theme_editor_plugin.cpp

/*************************************************************************/
/*  theme_editor_plugin.cpp                                              */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#include "theme_editor_plugin.h"

#include "core/os/file_access.h"
#include "core/version.h"
#include "editor/editor_scale.h"
#include "scene/gui/progress_bar.h"

void ThemeEditor::edit(const Ref<Theme> &p_theme) {
	theme = p_theme;
	main_panel->set_theme(p_theme);
	main_container->set_theme(p_theme);
}

void ThemeEditor::_propagate_redraw(Control *p_at) {
	p_at->notification(NOTIFICATION_THEME_CHANGED);
	p_at->minimum_size_changed();
	p_at->update();
	for (int i = 0; i < p_at->get_child_count(); i++) {
		Control *a = Object::cast_to<Control>(p_at->get_child(i));
		if (a) {
			_propagate_redraw(a);
		}
	}
}

void ThemeEditor::_refresh_interval() {
	_propagate_redraw(main_panel);
	_propagate_redraw(main_container);
}

void ThemeEditor::_type_menu_cbk(int p_option) {
	type_edit->set_text(type_menu->get_popup()->get_item_text(p_option));
}

void ThemeEditor::_name_menu_about_to_show() {
	String fromtype = type_edit->get_text();
	List<StringName> names;

	if (popup_mode == POPUP_ADD) {
		switch (type_select->get_selected()) {
			case 0:
				Theme::get_default()->get_icon_list(fromtype, &names);
				break;
			case 1:
				Theme::get_default()->get_stylebox_list(fromtype, &names);
				break;
			case 2:
				Theme::get_default()->get_font_list(fromtype, &names);
				break;
			case 3:
				Theme::get_default()->get_font_size_list(fromtype, &names);
				break;
			case 4:
				Theme::get_default()->get_color_list(fromtype, &names);
				break;
			case 5:
				Theme::get_default()->get_constant_list(fromtype, &names);
				break;
		}
	} else if (popup_mode == POPUP_REMOVE) {
		theme->get_icon_list(fromtype, &names);
		theme->get_stylebox_list(fromtype, &names);
		theme->get_font_list(fromtype, &names);
		theme->get_font_size_list(fromtype, &names);
		theme->get_color_list(fromtype, &names);
		theme->get_constant_list(fromtype, &names);
	}

	name_menu->get_popup()->clear();
	name_menu->get_popup()->set_size(Size2());
	for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
		name_menu->get_popup()->add_item(E->get());
	}
}

void ThemeEditor::_name_menu_cbk(int p_option) {
	name_edit->set_text(name_menu->get_popup()->get_item_text(p_option));
}

struct _TECategory {
	template <class T>
	struct RefItem {
		Ref<T> item;
		StringName name;
		bool operator<(const RefItem<T> &p) const { return item->get_instance_id() < p.item->get_instance_id(); }
	};

	template <class T>
	struct Item {
		T item;
		String name;
		bool operator<(const Item<T> &p) const { return name < p.name; }
	};

	Set<RefItem<StyleBox>> stylebox_items;
	Set<RefItem<Font>> font_items;
	Set<Item<int>> font_size_items;
	Set<RefItem<Texture2D>> icon_items;

	Set<Item<Color>> color_items;
	Set<Item<int>> constant_items;
};

void ThemeEditor::_save_template_cbk(String fname) {
	String filename = file_dialog->get_current_path();

	Map<String, _TECategory> categories;

	// Fill types.
	List<StringName> type_list;
	Theme::get_default()->get_type_list(&type_list);
	for (List<StringName>::Element *E = type_list.front(); E; E = E->next()) {
		categories.insert(E->get(), _TECategory());
	}

	// Fill default theme.
	for (Map<String, _TECategory>::Element *E = categories.front(); E; E = E->next()) {
		_TECategory &tc = E->get();

		List<StringName> stylebox_list;
		Theme::get_default()->get_stylebox_list(E->key(), &stylebox_list);
		for (List<StringName>::Element *F = stylebox_list.front(); F; F = F->next()) {
			_TECategory::RefItem<StyleBox> it;
			it.name = F->get();
			it.item = Theme::get_default()->get_stylebox(F->get(), E->key());
			tc.stylebox_items.insert(it);
		}

		List<StringName> font_list;
		Theme::get_default()->get_font_list(E->key(), &font_list);
		for (List<StringName>::Element *F = font_list.front(); F; F = F->next()) {
			_TECategory::RefItem<Font> it;
			it.name = F->get();
			it.item = Theme::get_default()->get_font(F->get(), E->key());
			tc.font_items.insert(it);
		}

		List<StringName> font_size_list;
		Theme::get_default()->get_font_size_list(E->key(), &font_list);
		for (List<StringName>::Element *F = font_size_list.front(); F; F = F->next()) {
			_TECategory::Item<int> it;
			it.name = F->get();
			it.item = Theme::get_default()->get_font_size(F->get(), E->key());
			tc.font_size_items.insert(it);
		}

		List<StringName> icon_list;
		Theme::get_default()->get_icon_list(E->key(), &icon_list);
		for (List<StringName>::Element *F = icon_list.front(); F; F = F->next()) {
			_TECategory::RefItem<Texture2D> it;
			it.name = F->get();
			it.item = Theme::get_default()->get_icon(F->get(), E->key());
			tc.icon_items.insert(it);
		}

		List<StringName> color_list;
		Theme::get_default()->get_color_list(E->key(), &color_list);
		for (List<StringName>::Element *F = color_list.front(); F; F = F->next()) {
			_TECategory::Item<Color> it;
			it.name = F->get();
			it.item = Theme::get_default()->get_color(F->get(), E->key());
			tc.color_items.insert(it);
		}

		List<StringName> constant_list;
		Theme::get_default()->get_constant_list(E->key(), &constant_list);
		for (List<StringName>::Element *F = constant_list.front(); F; F = F->next()) {
			_TECategory::Item<int> it;
			it.name = F->get();
			it.item = Theme::get_default()->get_constant(F->get(), E->key());
			tc.constant_items.insert(it);
		}
	}

	FileAccess *file = FileAccess::open(filename, FileAccess::WRITE);

	ERR_FAIL_COND_MSG(!file, "Can't save theme to file '" + filename + "'.");

	file->store_line("; ******************* ");
	file->store_line("; Template Theme File ");
	file->store_line("; ******************* ");
	file->store_line("; ");
	file->store_line("; Theme Syntax: ");
	file->store_line("; ------------- ");
	file->store_line("; ");
	file->store_line("; Must be placed in section [theme]");
	file->store_line("; ");
	file->store_line("; Type.item = [value] ");
	file->store_line("; ");
	file->store_line("; [value] examples:");
	file->store_line("; ");
	file->store_line("; Type.item = 6 ; numeric constant. ");
	file->store_line("; Type.item = #FF00FF ; HTML color (magenta).");
	file->store_line("; Type.item = #FF00FF55 ; HTML color (magenta with alpha 0x55).");
	file->store_line("; Type.item = icon(image.png) ; icon in a png file (relative to theme file).");
	file->store_line("; Type.item = font(font.xres) ; font in a resource (relative to theme file).");
	file->store_line("; Type.item = sbox(stylebox.xres) ; stylebox in a resource (relative to theme file).");
	file->store_line("; Type.item = sboxf(2,#FF00FF) ; flat stylebox with margin 2.");
	file->store_line("; Type.item = sboxf(2,#FF00FF,#FFFFFF) ; flat stylebox with margin 2 and border.");
	file->store_line("; Type.item = sboxf(2,#FF00FF,#FFFFFF,#000000) ; flat stylebox with margin 2, light & dark borders.");
	file->store_line("; Type.item = sboxt(base.png,2,2,2,2) ; textured stylebox with 3x3 stretch and stretch margins.");
	file->store_line(";   -Additionally, 4 extra integers can be added to sboxf and sboxt to specify custom padding of contents:");
	file->store_line("; Type.item = sboxt(base.png,2,2,2,2,5,4,2,4) ;");
	file->store_line(";   -Order for all is always left, top, right, bottom.");
	file->store_line("; ");
	file->store_line("; Special values:");
	file->store_line("; Type.item = default ; use the value in the default theme (must exist there).");
	file->store_line("; Type.item = @somebutton_color ; reference to a library value previously defined.");
	file->store_line("; ");
	file->store_line("; Library Syntax: ");
	file->store_line("; --------------- ");
	file->store_line("; ");
	file->store_line("; Must be placed in section [library], but usage is optional.");
	file->store_line("; ");
	file->store_line("; item = [value] ; same as Theme, but assign to library.");
	file->store_line("; ");
	file->store_line("; examples:");
	file->store_line("; ");
	file->store_line("; [library]");
	file->store_line("; ");
	file->store_line("; default_button_color = #FF00FF");
	file->store_line("; ");
	file->store_line("; [theme]");
	file->store_line("; ");
	file->store_line("; Button.color = @default_button_color ; used reference.");
	file->store_line("; ");
	file->store_line("; ******************* ");
	file->store_line("; ");
	file->store_line("; Template Generated Using: " + String(VERSION_FULL_BUILD));
	file->store_line(";    ");
	file->store_line("; ");
	file->store_line("");
	file->store_line("[library]");
	file->store_line("");
	file->store_line("; place library stuff here");
	file->store_line("");
	file->store_line("[theme]");
	file->store_line("");
	file->store_line("");

	// Write default theme.
	for (Map<String, _TECategory>::Element *E = categories.front(); E; E = E->next()) {
		_TECategory &tc = E->get();

		String underline = "; ";
		for (int i = 0; i < E->key().length(); i++) {
			underline += "*";
		}

		file->store_line("");
		file->store_line(underline);
		file->store_line("; " + E->key());
		file->store_line(underline);

		if (tc.stylebox_items.size()) {
			file->store_line("\n; StyleBox Items:\n");
		}

		for (Set<_TECategory::RefItem<StyleBox>>::Element *F = tc.stylebox_items.front(); F; F = F->next()) {
			file->store_line(E->key() + "." + F->get().name + " = default");
		}

		if (tc.font_items.size()) {
			file->store_line("\n; Font Items:\n");
		}

		for (Set<_TECategory::RefItem<Font>>::Element *F = tc.font_items.front(); F; F = F->next()) {
			file->store_line(E->key() + "." + F->get().name + " = default");
		}

		if (tc.font_size_items.size()) {
			file->store_line("\n; Font Size Items:\n");
		}

		for (Set<_TECategory::Item<int>>::Element *F = tc.font_size_items.front(); F; F = F->next()) {
			file->store_line(E->key() + "." + F->get().name + " = default");
		}

		if (tc.icon_items.size()) {
			file->store_line("\n; Icon Items:\n");
		}

		for (Set<_TECategory::RefItem<Texture2D>>::Element *F = tc.icon_items.front(); F; F = F->next()) {
			file->store_line(E->key() + "." + F->get().name + " = default");
		}

		if (tc.color_items.size()) {
			file->store_line("\n; Color Items:\n");
		}

		for (Set<_TECategory::Item<Color>>::Element *F = tc.color_items.front(); F; F = F->next()) {
			file->store_line(E->key() + "." + F->get().name + " = default");
		}

		if (tc.constant_items.size()) {
			file->store_line("\n; Constant Items:\n");
		}

		for (Set<_TECategory::Item<int>>::Element *F = tc.constant_items.front(); F; F = F->next()) {
			file->store_line(E->key() + "." + F->get().name + " = default");
		}
	}

	file->close();
	memdelete(file);
}

void ThemeEditor::_dialog_cbk() {
	switch (popup_mode) {
		case POPUP_ADD: {
			switch (type_select->get_selected()) {
				case 0:
					theme->set_icon(name_edit->get_text(), type_edit->get_text(), Ref<Texture2D>());
					break;
				case 1:
					theme->set_stylebox(name_edit->get_text(), type_edit->get_text(), Ref<StyleBox>());
					break;
				case 2:
					theme->set_font(name_edit->get_text(), type_edit->get_text(), Ref<Font>());
					break;
				case 3:
					theme->set_font_size(name_edit->get_text(), type_edit->get_text(), -1);
					break;
				case 4:
					theme->set_color(name_edit->get_text(), type_edit->get_text(), Color());
					break;
				case 5:
					theme->set_constant(name_edit->get_text(), type_edit->get_text(), 0);
					break;
			}

		} break;
		case POPUP_CLASS_ADD: {
			StringName fromtype = type_edit->get_text();
			List<StringName> names;

			{
				names.clear();
				Theme::get_default()->get_icon_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->set_icon(E->get(), fromtype, Ref<Texture2D>());
				}
			}
			{
				names.clear();
				Theme::get_default()->get_stylebox_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->set_stylebox(E->get(), fromtype, Ref<StyleBox>());
				}
			}
			{
				names.clear();
				Theme::get_default()->get_font_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->set_font(E->get(), fromtype, Ref<Font>());
				}
			}
			{
				names.clear();
				Theme::get_default()->get_font_size_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->set_font_size(E->get(), fromtype, Theme::get_default()->get_font_size(E->get(), fromtype));
				}
			}
			{
				names.clear();
				Theme::get_default()->get_color_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->set_color(E->get(), fromtype, Theme::get_default()->get_color(E->get(), fromtype));
				}
			}
			{
				names.clear();
				Theme::get_default()->get_constant_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->set_constant(E->get(), fromtype, Theme::get_default()->get_constant(E->get(), fromtype));
				}
			}
		} break;
		case POPUP_REMOVE: {
			switch (type_select->get_selected()) {
				case 0:
					theme->clear_icon(name_edit->get_text(), type_edit->get_text());
					break;
				case 1:
					theme->clear_stylebox(name_edit->get_text(), type_edit->get_text());
					break;
				case 2:
					theme->clear_font(name_edit->get_text(), type_edit->get_text());
					break;
				case 3:
					theme->clear_font_size(name_edit->get_text(), type_edit->get_text());
					break;
				case 4:
					theme->clear_color(name_edit->get_text(), type_edit->get_text());
					break;
				case 5:
					theme->clear_constant(name_edit->get_text(), type_edit->get_text());
					break;
			}

		} break;
		case POPUP_CLASS_REMOVE: {
			StringName fromtype = type_edit->get_text();
			List<StringName> names;

			{
				names.clear();
				Theme::get_default()->get_icon_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->clear_icon(E->get(), fromtype);
				}
			}
			{
				names.clear();
				Theme::get_default()->get_stylebox_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->clear_stylebox(E->get(), fromtype);
				}
			}
			{
				names.clear();
				Theme::get_default()->get_font_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->clear_font(E->get(), fromtype);
				}
			}
			{
				names.clear();
				Theme::get_default()->get_font_size_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->clear_font_size(E->get(), fromtype);
				}
			}
			{
				names.clear();
				Theme::get_default()->get_color_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->clear_color(E->get(), fromtype);
				}
			}
			{
				names.clear();
				Theme::get_default()->get_constant_list(fromtype, &names);
				for (List<StringName>::Element *E = names.front(); E; E = E->next()) {
					theme->clear_constant(E->get(), fromtype);
				}
			}

		} break;
	}
}

void ThemeEditor::_theme_menu_cbk(int p_option) {
	if (p_option == POPUP_CREATE_EMPTY || p_option == POPUP_CREATE_EDITOR_EMPTY || p_option == POPUP_IMPORT_EDITOR_THEME) {
		bool import = (p_option == POPUP_IMPORT_EDITOR_THEME);

		Ref<Theme> base_theme;

		if (p_option == POPUP_CREATE_EMPTY) {
			base_theme = Theme::get_default();
		} else {
			base_theme = EditorNode::get_singleton()->get_theme_base()->get_theme();
		}

		{
			List<StringName> types;
			base_theme->get_type_list(&types);

			for (List<StringName>::Element *T = types.front(); T; T = T->next()) {
				StringName type = T->get();

				List<StringName> icons;
				base_theme->get_icon_list(type, &icons);

				for (List<StringName>::Element *E = icons.front(); E; E = E->next()) {
					theme->set_icon(E->get(), type, import ? base_theme->get_icon(E->get(), type) : Ref<Texture2D>());
				}

				List<StringName> styleboxs;
				base_theme->get_stylebox_list(type, &styleboxs);

				for (List<StringName>::Element *E = styleboxs.front(); E; E = E->next()) {
					theme->set_stylebox(E->get(), type, import ? base_theme->get_stylebox(E->get(), type) : Ref<StyleBox>());
				}

				List<StringName> fonts;
				base_theme->get_font_list(type, &fonts);

				for (List<StringName>::Element *E = fonts.front(); E; E = E->next()) {
					theme->set_font(E->get(), type, Ref<Font>());
				}

				List<StringName> font_sizes;
				base_theme->get_font_size_list(type, &font_sizes);

				for (List<StringName>::Element *E = font_sizes.front(); E; E = E->next()) {
					theme->set_font_size(E->get(), type, base_theme->get_font_size(E->get(), type));
				}

				List<StringName> colors;
				base_theme->get_color_list(type, &colors);

				for (List<StringName>::Element *E = colors.front(); E; E = E->next()) {
					theme->set_color(E->get(), type, import ? base_theme->get_color(E->get(), type) : Color());
				}

				List<StringName> constants;
				base_theme->get_constant_list(type, &constants);

				for (List<StringName>::Element *E = constants.front(); E; E = E->next()) {
					theme->set_constant(E->get(), type, base_theme->get_constant(E->get(), type));
				}
			}
		}
		return;
	}

	Ref<Theme> base_theme;

	name_select_label->show();
	name_hbc->show();
	type_select_label->show();
	type_select->show();

	if (p_option == POPUP_ADD) { // Add.

		add_del_dialog->set_title(TTR("Add Item"));
		add_del_dialog->get_ok()->set_text(TTR("Add"));
		add_del_dialog->popup_centered(Size2(490, 85) * EDSCALE);

		base_theme = Theme::get_default();

	} else if (p_option == POPUP_CLASS_ADD) { // Add.

		add_del_dialog->set_title(TTR("Add All Items"));
		add_del_dialog->get_ok()->set_text(TTR("Add All"));
		add_del_dialog->popup_centered(Size2(240, 85) * EDSCALE);

		base_theme = Theme::get_default();

		name_select_label->hide();
		name_hbc->hide();
		type_select_label->hide();
		type_select->hide();

	} else if (p_option == POPUP_REMOVE) {
		add_del_dialog->set_title(TTR("Remove Item"));
		add_del_dialog->get_ok()->set_text(TTR("Remove"));
		add_del_dialog->popup_centered(Size2(490, 85) * EDSCALE);

		base_theme = theme;

	} else if (p_option == POPUP_CLASS_REMOVE) {
		add_del_dialog->set_title(TTR("Remove All Items"));
		add_del_dialog->get_ok()->set_text(TTR("Remove All"));
		add_del_dialog->popup_centered(Size2(240, 85) * EDSCALE);

		base_theme = Theme::get_default();

		name_select_label->hide();
		name_hbc->hide();
		type_select_label->hide();
		type_select->hide();
	}
	popup_mode = p_option;

	ERR_FAIL_COND(theme.is_null());

	List<StringName> types;
	base_theme->get_type_list(&types);

	type_menu->get_popup()->clear();

	if (p_option == 0 || p_option == 1) { // Add.

		List<StringName> new_types;
		theme->get_type_list(&new_types);
		for (List<StringName>::Element *F = new_types.front(); F; F = F->next()) {
			bool found = false;
			for (List<StringName>::Element *E = types.front(); E; E = E->next()) {
				if (E->get() == F->get()) {
					found = true;
					break;
				}
			}

			if (!found) {
				types.push_back(F->get());
			}
		}
	}

	types.sort_custom<StringName::AlphCompare>();
	for (List<StringName>::Element *E = types.front(); E; E = E->next()) {
		type_menu->get_popup()->add_item(E->get());
	}
}

void ThemeEditor::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_PROCESS: {
			time_left -= get_process_delta_time();
			if (time_left < 0) {
				time_left = 1.5;
				_refresh_interval();
			}
		} break;
		case NOTIFICATION_THEME_CHANGED: {
			theme_menu->set_icon(get_theme_icon("Theme", "EditorIcons"));
		} break;
	}
}

void ThemeEditor::_bind_methods() {
}

ThemeEditor::ThemeEditor() {
	time_left = 0;

	HBoxContainer *top_menu = memnew(HBoxContainer);
	add_child(top_menu);

	top_menu->add_child(memnew(Label(TTR("Preview:"))));
	top_menu->add_spacer(false);

	theme_menu = memnew(MenuButton);
	theme_menu->set_text(TTR("Edit Theme"));
	theme_menu->set_tooltip(TTR("Theme editing menu."));
	theme_menu->get_popup()->add_item(TTR("Add Item"), POPUP_ADD);
	theme_menu->get_popup()->add_item(TTR("Add Class Items"), POPUP_CLASS_ADD);
	theme_menu->get_popup()->add_item(TTR("Remove Item"), POPUP_REMOVE);
	theme_menu->get_popup()->add_item(TTR("Remove Class Items"), POPUP_CLASS_REMOVE);
	theme_menu->get_popup()->add_separator();
	theme_menu->get_popup()->add_item(TTR("Create Empty Template"), POPUP_CREATE_EMPTY);
	theme_menu->get_popup()->add_item(TTR("Create Empty Editor Template"), POPUP_CREATE_EDITOR_EMPTY);
	theme_menu->get_popup()->add_item(TTR("Create From Current Editor Theme"), POPUP_IMPORT_EDITOR_THEME);
	top_menu->add_child(theme_menu);
	theme_menu->get_popup()->connect("id_pressed", callable_mp(this, &ThemeEditor::_theme_menu_cbk));

	ScrollContainer *scroll = memnew(ScrollContainer);
	add_child(scroll);
	scroll->set_enable_v_scroll(true);
	scroll->set_enable_h_scroll(true);
	scroll->set_v_size_flags(SIZE_EXPAND_FILL);

	MarginContainer *root_container = memnew(MarginContainer);
	scroll->add_child(root_container);
	root_container->set_theme(Theme::get_default());
	root_container->set_clip_contents(true);
	root_container->set_custom_minimum_size(Size2(700, 0) * EDSCALE);
	root_container->set_v_size_flags(SIZE_EXPAND_FILL);
	root_container->set_h_size_flags(SIZE_EXPAND_FILL);

	//// Preview Controls ////

	main_panel = memnew(Panel);
	root_container->add_child(main_panel);

	main_container = memnew(MarginContainer);
	root_container->add_child(main_container);
	main_container->add_theme_constant_override("margin_right", 4 * EDSCALE);
	main_container->add_theme_constant_override("margin_top", 4 * EDSCALE);
	main_container->add_theme_constant_override("margin_left", 4 * EDSCALE);
	main_container->add_theme_constant_override("margin_bottom", 4 * EDSCALE);

	HBoxContainer *main_hb = memnew(HBoxContainer);
	main_container->add_child(main_hb);

	VBoxContainer *first_vb = memnew(VBoxContainer);
	main_hb->add_child(first_vb);
	first_vb->set_h_size_flags(SIZE_EXPAND_FILL);
	first_vb->add_theme_constant_override("separation", 10 * EDSCALE);

	first_vb->add_child(memnew(Label("Label")));

	first_vb->add_child(memnew(Button("Button")));
	Button *bt = memnew(Button);
	bt->set_text(TTR("Toggle Button"));
	bt->set_toggle_mode(true);
	bt->set_pressed(true);
	first_vb->add_child(bt);
	bt = memnew(Button);
	bt->set_text(TTR("Disabled Button"));
	bt->set_disabled(true);
	first_vb->add_child(bt);
	Button *tb = memnew(Button);
	tb->set_flat(true);
	tb->set_text("Button");
	first_vb->add_child(tb);

	CheckButton *cb = memnew(CheckButton);
	cb->set_text("CheckButton");
	first_vb->add_child(cb);
	CheckBox *cbx = memnew(CheckBox);
	cbx->set_text("CheckBox");
	first_vb->add_child(cbx);

	MenuButton *test_menu_button = memnew(MenuButton);
	test_menu_button->set_text("MenuButton");
	test_menu_button->get_popup()->add_item(TTR("Item"));
	test_menu_button->get_popup()->add_item(TTR("Disabled Item"));
	test_menu_button->get_popup()->set_item_disabled(1, true);
	test_menu_button->get_popup()->add_separator();
	test_menu_button->get_popup()->add_check_item(TTR("Check Item"));
	test_menu_button->get_popup()->add_check_item(TTR("Checked Item"));
	test_menu_button->get_popup()->set_item_checked(4, true);
	test_menu_button->get_popup()->add_separator();
	test_menu_button->get_popup()->add_radio_check_item(TTR("Radio Item"));
	test_menu_button->get_popup()->add_radio_check_item(TTR("Checked Radio Item"));
	test_menu_button->get_popup()->set_item_checked(7, true);
	test_menu_button->get_popup()->add_separator(TTR("Named Sep."));

	PopupMenu *test_submenu = memnew(PopupMenu);
	test_menu_button->get_popup()->add_child(test_submenu);
	test_submenu->set_name("submenu");
	test_menu_button->get_popup()->add_submenu_item(TTR("Submenu"), "submenu");
	test_submenu->add_item(TTR("Subitem 1"));
	test_submenu->add_item(TTR("Subitem 2"));
	first_vb->add_child(test_menu_button);

	OptionButton *test_option_button = memnew(OptionButton);
	test_option_button->add_item("OptionButton");
	test_option_button->add_separator();
	test_option_button->add_item(TTR("Has"));
	test_option_button->add_item(TTR("Many"));
	test_option_button->add_item(TTR("Options"));
	first_vb->add_child(test_option_button);
	first_vb->add_child(memnew(ColorPickerButton));

	VBoxContainer *second_vb = memnew(VBoxContainer);
	second_vb->set_h_size_flags(SIZE_EXPAND_FILL);
	main_hb->add_child(second_vb);
	second_vb->add_theme_constant_override("separation", 10 * EDSCALE);
	LineEdit *le = memnew(LineEdit);
	le->set_text("LineEdit");
	second_vb->add_child(le);
	le = memnew(LineEdit);
	le->set_text(TTR("Disabled LineEdit"));
	le->set_editable(false);
	second_vb->add_child(le);
	TextEdit *te = memnew(TextEdit);
	te->set_text("TextEdit");
	te->set_custom_minimum_size(Size2(0, 100) * EDSCALE);
	second_vb->add_child(te);
	second_vb->add_child(memnew(SpinBox));

	HBoxContainer *vhb = memnew(HBoxContainer);
	second_vb->add_child(vhb);
	vhb->set_custom_minimum_size(Size2(0, 100) * EDSCALE);
	vhb->add_child(memnew(VSlider));
	VScrollBar *vsb = memnew(VScrollBar);
	vsb->set_page(25);
	vhb->add_child(vsb);
	vhb->add_child(memnew(VSeparator));
	VBoxContainer *hvb = memnew(VBoxContainer);
	vhb->add_child(hvb);
	hvb->set_alignment(ALIGN_CENTER);
	hvb->set_h_size_flags(SIZE_EXPAND_FILL);
	hvb->add_child(memnew(HSlider));
	HScrollBar *hsb = memnew(HScrollBar);
	hsb->set_page(25);
	hvb->add_child(hsb);
	HSlider *hs = memnew(HSlider);
	hs->set_editable(false);
	hvb->add_child(hs);
	hvb->add_child(memnew(HSeparator));
	ProgressBar *pb = memnew(ProgressBar);
	pb->set_value(50);
	hvb->add_child(pb);

	VBoxContainer *third_vb = memnew(VBoxContainer);
	third_vb->set_h_size_flags(SIZE_EXPAND_FILL);
	third_vb->add_theme_constant_override("separation", 10 * EDSCALE);
	main_hb->add_child(third_vb);

	TabContainer *tc = memnew(TabContainer);
	third_vb->add_child(tc);
	tc->set_custom_minimum_size(Size2(0, 135) * EDSCALE);
	Control *tcc = memnew(Control);
	tcc->set_name(TTR("Tab 1"));
	tc->add_child(tcc);
	tcc = memnew(Control);
	tcc->set_name(TTR("Tab 2"));
	tc->add_child(tcc);
	tcc = memnew(Control);
	tcc->set_name(TTR("Tab 3"));
	tc->add_child(tcc);
	tc->set_tab_disabled(2, true);

	Tree *test_tree = memnew(Tree);
	third_vb->add_child(test_tree);
	test_tree->set_custom_minimum_size(Size2(0, 175) * EDSCALE);
	test_tree->add_theme_constant_override("draw_relationship_lines", 1);

	TreeItem *item = test_tree->create_item();
	item->set_text(0, "Tree");
	item = test_tree->create_item(test_tree->get_root());
	item->set_text(0, "Item");
	item = test_tree->create_item(test_tree->get_root());
	item->set_editable(0, true);
	item->set_text(0, TTR("Editable Item"));
	TreeItem *sub_tree = test_tree->create_item(test_tree->get_root());
	sub_tree->set_text(0, TTR("Subtree"));
	item = test_tree->create_item(sub_tree);
	item->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
	item->set_editable(0, true);
	item->set_text(0, "Check Item");
	item = test_tree->create_item(sub_tree);
	item->set_cell_mode(0, TreeItem::CELL_MODE_RANGE);
	item->set_editable(0, true);
	item->set_range_config(0, 0, 20, 0.1);
	item->set_range(0, 2);
	item = test_tree->create_item(sub_tree);
	item->set_cell_mode(0, TreeItem::CELL_MODE_RANGE);
	item->set_editable(0, true);
	item->set_text(0, TTR("Has,Many,Options"));
	item->set_range(0, 2);

	main_hb->add_theme_constant_override("separation", 20 * EDSCALE);

	////////

	add_del_dialog = memnew(ConfirmationDialog);
	add_del_dialog->hide();
	add_child(add_del_dialog);

	VBoxContainer *dialog_vbc = memnew(VBoxContainer);
	add_del_dialog->add_child(dialog_vbc);

	Label *l = memnew(Label);
	l->set_text(TTR("Type:"));
	dialog_vbc->add_child(l);

	type_hbc = memnew(HBoxContainer);
	dialog_vbc->add_child(type_hbc);

	type_edit = memnew(LineEdit);
	type_edit->set_h_size_flags(SIZE_EXPAND_FILL);
	type_hbc->add_child(type_edit);
	type_menu = memnew(MenuButton);
	type_menu->set_flat(false);
	type_menu->set_text("...");
	type_hbc->add_child(type_menu);

	type_menu->get_popup()->connect("id_pressed", callable_mp(this, &ThemeEditor::_type_menu_cbk));

	l = memnew(Label);
	l->set_text(TTR("Name:"));
	dialog_vbc->add_child(l);
	name_select_label = l;

	name_hbc = memnew(HBoxContainer);
	dialog_vbc->add_child(name_hbc);

	name_edit = memnew(LineEdit);
	name_edit->set_h_size_flags(SIZE_EXPAND_FILL);
	name_hbc->add_child(name_edit);
	name_menu = memnew(MenuButton);
	type_menu->set_flat(false);
	name_menu->set_text("...");
	name_hbc->add_child(name_menu);

	name_menu->get_popup()->connect("about_to_popup", callable_mp(this, &ThemeEditor::_name_menu_about_to_show));
	name_menu->get_popup()->connect("id_pressed", callable_mp(this, &ThemeEditor::_name_menu_cbk));

	type_select_label = memnew(Label);
	type_select_label->set_text(TTR("Data Type:"));
	dialog_vbc->add_child(type_select_label);

	type_select = memnew(OptionButton);
	type_select->add_item(TTR("Icon"));
	type_select->add_item(TTR("Style"));
	type_select->add_item(TTR("Font"));
	type_select->add_item(TTR("Font Size"));
	type_select->add_item(TTR("Color"));
	type_select->add_item(TTR("Constant"));

	dialog_vbc->add_child(type_select);

	add_del_dialog->get_ok()->connect("pressed", callable_mp(this, &ThemeEditor::_dialog_cbk));

	file_dialog = memnew(EditorFileDialog);
	file_dialog->add_filter("*.theme ; " + TTR("Theme File"));
	add_child(file_dialog);
	file_dialog->connect("file_selected", callable_mp(this, &ThemeEditor::_save_template_cbk));
}

void ThemeEditorPlugin::edit(Object *p_node) {
	if (Object::cast_to<Theme>(p_node)) {
		theme_editor->edit(Object::cast_to<Theme>(p_node));
	} else {
		theme_editor->edit(Ref<Theme>());
	}
}

bool ThemeEditorPlugin::handles(Object *p_node) const {
	return p_node->is_class("Theme");
}

void ThemeEditorPlugin::make_visible(bool p_visible) {
	if (p_visible) {
		theme_editor->set_process(true);
		button->show();
		editor->make_bottom_panel_item_visible(theme_editor);
	} else {
		theme_editor->set_process(false);
		if (theme_editor->is_visible_in_tree()) {
			editor->hide_bottom_panel();
		}

		button->hide();
	}
}

ThemeEditorPlugin::ThemeEditorPlugin(EditorNode *p_node) {
	editor = p_node;
	theme_editor = memnew(ThemeEditor);
	theme_editor->set_custom_minimum_size(Size2(0, 200) * EDSCALE);

	button = editor->add_bottom_panel_item(TTR("Theme"), theme_editor);
	button->hide();
}