godot/scene/gui/check_box.cpp

/*************************************************************************/
/*  check_button.cpp                                                     */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
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/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
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/* 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:                                             */
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/* 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.*/
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/*************************************************************************/
#include "check_box.h"

#include "servers/visual_server.h"
#include "button_group.h"


void CheckBox::_notification(int p_what) {

    if (p_what==NOTIFICATION_DRAW) {

        RID ci = get_canvas_item();

        Ref<Texture> on=Control::get_icon(is_radio() ? "radio_checked" : "checked");
        Ref<Texture> off=Control::get_icon(is_radio() ? "radio_unchecked" : "unchecked");

        Vector2 ofs;
        ofs.x = 0;
        ofs.y = int((get_size().height - on->get_height())/2);

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


    }
}

bool CheckBox::is_radio()
{
    Node* parent = this;
    do {
        parent = parent->get_parent();
        if (dynamic_cast< ButtonGroup* >(parent))
            break;
    } while (parent != nullptr);

    return (parent != nullptr);
}

CheckBox::CheckBox(const String &p_text):
    Button(p_text)
{
    set_toggle_mode(true);
    set_text_align(ALIGN_LEFT);

}

CheckBox::~CheckBox()
{
}