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path: root/scene/gui/check_button.cpp
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/*************************************************************************/
/*  check_button.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 "check_button.h"

#include "core/print_string.h"
#include "servers/rendering_server.h"

Size2 CheckButton::get_icon_size() const {

	Ref<Texture2D> on = Control::get_theme_icon(is_disabled() ? "on_disabled" : "on");
	Ref<Texture2D> off = Control::get_theme_icon(is_disabled() ? "off_disabled" : "off");
	Size2 tex_size = Size2(0, 0);
	if (!on.is_null())
		tex_size = Size2(on->get_width(), on->get_height());
	if (!off.is_null())
		tex_size = Size2(MAX(tex_size.width, off->get_width()), MAX(tex_size.height, off->get_height()));

	return tex_size;
}

Size2 CheckButton::get_minimum_size() const {

	Size2 minsize = Button::get_minimum_size();
	Size2 tex_size = get_icon_size();
	minsize.width += tex_size.width;
	if (get_text().length() > 0)
		minsize.width += get_theme_constant("hseparation");
	Ref<StyleBox> sb = get_theme_stylebox("normal");
	minsize.height = MAX(minsize.height, tex_size.height + sb->get_margin(MARGIN_TOP) + sb->get_margin(MARGIN_BOTTOM));

	return minsize;
}

void CheckButton::_notification(int p_what) {

	if (p_what == NOTIFICATION_THEME_CHANGED) {

		_set_internal_margin(MARGIN_RIGHT, get_icon_size().width);
	} else if (p_what == NOTIFICATION_DRAW) {

		RID ci = get_canvas_item();

		Ref<Texture2D> on = Control::get_theme_icon(is_disabled() ? "on_disabled" : "on");
		Ref<Texture2D> off = Control::get_theme_icon(is_disabled() ? "off_disabled" : "off");

		Ref<StyleBox> sb = get_theme_stylebox("normal");
		Vector2 ofs;
		Size2 tex_size = get_icon_size();

		ofs.x = get_size().width - (tex_size.width + sb->get_margin(MARGIN_RIGHT));
		ofs.y = (get_size().height - tex_size.height) / 2 + get_theme_constant("check_vadjust");

		if (is_pressed())
			on->draw(ci, ofs);
		else
			off->draw(ci, ofs);
	}
}

CheckButton::CheckButton() {

	set_toggle_mode(true);
	set_text_align(ALIGN_LEFT);

	_set_internal_margin(MARGIN_RIGHT, get_icon_size().width);
}

CheckButton::~CheckButton() {
}