/*
 * window.cpp
 *
 *  Created on: 2011/07/14
 *      Author: N2885
 */

#include "window.h"

u16 waitTime = 40;
u16 waitAcceleTime = 5;
u16 n = 4;

void Window::Initialize(void)
{
    mIndex = 0;
    mOriginIndex = 0;
    mSelectPos = 0;
    mCursorCounter = 0;
    mAcceleCounter = 0;
    isSelectedWindow = false;
}

//カーソル上下・押しっぱなしで加速
void Window::UpDown(nn::hid::PadStatus& status)
{
    if(mCursorCounter == 0)
    {
        if(status.hold & nn::hid::BUTTON_UP || status.hold & nn::hid::BUTTON_DOWN)
        {
            if(status.hold & nn::hid::BUTTON_UP)
            {
                mSelectPos--;
            }
            else
            {
                mSelectPos++;
            }
            mAcceleCounter++;
            for(u16 i = 1; i < n; i++)
            {
                if( mAcceleCounter >= waitAcceleTime * ( i - 1 ) && mAcceleCounter <= waitAcceleTime * i )
                {
                    mCursorCounter = waitTime/ i;
                    i = n;
                }
                else
                {
                    mCursorCounter = waitTime / n;
                }
            }
        }
        else
        {
            mAcceleCounter = 0;
        }
    }
    else
    {
        mCursorCounter--;
    }
}
static u16 Min(u16 a, u16 b)
{
    return (a > b) ? b : a;
}

void Window::Update(u16 fileSize)
{
    if( mSelectPos < 0 )
    {
        if( mOriginIndex == 0 )
        {
            mSelectPos = Min(fileSize, mScreenHeight) - 1;
            mOriginIndex = fileSize - Min(fileSize,mScreenHeight);
        }
        else
        {
            mSelectPos = 0;
            mOriginIndex--;
        }
    }
    else if( mSelectPos >= Min(fileSize, mScreenHeight) )
    {
        if( mOriginIndex < fileSize - mScreenHeight)
        {
            mSelectPos = mScreenHeight - 1;
            mOriginIndex++;
        }
        else
        {
            mSelectPos = 0;
            mOriginIndex = 0;
        }
    }
    mIndex = mSelectPos + mOriginIndex;
}