godot/scene/gui/check_box.cpp

/*************************************************************************/
/*  check_button.cpp                                                     */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur.                 */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/* 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 (parent->cast_to<ButtonGroup>())
            break;
    } while (parent);

    return (parent != 0);
}

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

}

CheckBox::~CheckBox()
{
}