// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id: st_lib.c,v 1.3 2003/08/18 18:26:05 hurdler Exp $
//
// Copyright (C) 1993-1996 by id Software, Inc.
// Portions Copyright (C) 1998-2000 by DooM Legacy Team.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
//
// $Log: st_lib.c,v $
// Revision 1.3  2003/08/18 18:26:05  hurdler
// stable 1.41
//
// Revision 1.7  2003/05/04 04:17:17  sburke
// Add SHORT() conversion for big-endian machines.
//
// Revision 1.6  2001/02/24 13:35:21  bpereira
// no message
//
// Revision 1.5  2001/01/25 22:15:44  bpereira
// added heretic support
//
// Revision 1.4  2000/10/04 16:19:24  hurdler
// Change all those "3dfx names" to more appropriate names
//
// Revision 1.3  2000/09/28 20:57:18  bpereira
// no message
//
// Revision 1.2  2000/02/27 00:42:11  hurdler
// fix CR+LF problem
//
// Revision 1.1.1.1  2000/02/22 20:32:32  hurdler
// Initial import into CVS (v1.29 pr3)
//
//
// DESCRIPTION:
//      The status bar widget code.
//
//-----------------------------------------------------------------------------

#include "doomdef.h"
#include "st_lib.h"
#include "st_stuff.h"
#include "v_video.h"
#include "z_zone.h"

#include "i_video.h"    //rendermode
//#define DEBUG

//
// Hack display negative frags.
//  Loads and store the stminus lump.
//
patch_t *sttminus;

void STlib_init(void)
{
    sttminus = (patch_t *) W_CachePatchName("STTMINUS", PU_STATIC);
}

// Initialize number widget
void STlib_initNum(st_number_t * n, int x, int y, patch_t ** pl, int *num, boolean * on, int width)
{
    n->x = x;
    n->y = y;
    n->oldnum = 0;
    n->width = width;   // number of digits
    n->num = num;
    n->on = on;
    n->p = pl;
}

//
// A fairly efficient way to draw a number
//  based on differences from the old number.
// Note: worth the trouble?
//
void STlib_drawNum(st_number_t * n, boolean refresh)
{

    int numdigits = n->width;
    int num = *n->num;

    int w = SHORT(n->p[0]->width);
    int h = SHORT(n->p[0]->height);
    int x = n->x;

    int neg;

    n->oldnum = *n->num;

    neg = num < 0;

    if (neg)
    {
        if (numdigits == 2 && num < -9)
            num = -9;
        else if (numdigits == 3 && num < -99)
            num = -99;

        num = -num;
    }

    // clear the area
    x = n->x - numdigits * w;

#ifdef DEBUG
    CONS_Printf("V_CopyRect1: %d %d %d %d %d %d %d %d val: %d\n", x, n->y, BG, w * numdigits, h, x, n->y, fgbuffer, num);
#endif
    // dont clear background in overlay
    if (!st_overlay && rendermode == render_soft)       //faB:current hardware mode always refresh the statusbar
        V_CopyRect(x, n->y, BG, w * numdigits, h, x, n->y, fgbuffer);

    // if non-number, do not draw it
    if (num == 1994)
        return;

    x = n->x;

    // in the special case of 0, you draw 0
    if (!num)
        V_DrawScaledPatch(x - w, n->y, fgbuffer, n->p[0]);

    // draw the new number
    while (num && numdigits--)
    {
        x -= w;
        V_DrawScaledPatch(x, n->y, fgbuffer, n->p[num % 10]);
        num /= 10;
    }

    // draw a minus sign if necessary
    if (neg)
        V_DrawScaledPatch(x - 8, n->y, fgbuffer, sttminus);
}

//
void STlib_updateNum(st_number_t * n, boolean refresh)
{
    if (*n->on)
        STlib_drawNum(n, refresh);
}

//
void STlib_initPercent(st_percent_t * p, int x, int y, patch_t ** pl, int *num, boolean * on, patch_t * percent)
{
    STlib_initNum(&p->n, x, y, pl, num, on, 3);
    p->p = percent;
}

void STlib_updatePercent(st_percent_t * per, int refresh)
{
    if (refresh && *per->n.on)
        V_DrawScaledPatch(per->n.x, per->n.y, fgbuffer, per->p);

    STlib_updateNum(&per->n, refresh);
}

void STlib_initMultIcon(st_multicon_t * i, int x, int y, patch_t ** il, int *inum, boolean * on)
{
    i->x = x;
    i->y = y;
    i->oldinum = -1;
    i->inum = inum;
    i->on = on;
    i->p = il;
}

void STlib_updateMultIcon(st_multicon_t * mi, boolean refresh)
{
    int w;
    int h;
    int x;
    int y;

    if (*mi->on && (mi->oldinum != *mi->inum || refresh) && (*mi->inum != -1))
    {
        if (mi->oldinum != -1)
        {
            x = mi->x - SHORT(mi->p[mi->oldinum]->leftoffset);
            y = mi->y - SHORT(mi->p[mi->oldinum]->topoffset);
            w = SHORT(mi->p[mi->oldinum]->width);
            h = SHORT(mi->p[mi->oldinum]->height);

#ifdef DEBUG
            CONS_Printf("V_CopyRect2: %d %d %d %d %d %d %d %d\n", x, y, BG, w, h, x, y, fgbuffer);
#endif
            //faB:current hardware mode always refresh the statusbar
            if (!st_overlay && rendermode == render_soft)
                V_CopyRect(x, y, BG, w, h, x, y, fgbuffer);
        }
        V_DrawScaledPatch(mi->x, mi->y, fgbuffer, mi->p[*mi->inum]);
        mi->oldinum = *mi->inum;
    }
}

void STlib_initBinIcon(st_binicon_t * b, int x, int y, patch_t * i, boolean * val, boolean * on)
{
    b->x = x;
    b->y = y;
    b->oldval = 0;
    b->val = val;
    b->on = on;
    b->p = i;
}

void STlib_updateBinIcon(st_binicon_t * bi, boolean refresh)
{
    int x;
    int y;
    int w;
    int h;

    if (*bi->on && (bi->oldval != *bi->val || refresh))
    {
        x = bi->x - SHORT(bi->p->leftoffset);
        y = bi->y - SHORT(bi->p->topoffset);
        w = SHORT(bi->p->width);
        h = SHORT(bi->p->height);

        if (*bi->val)
            V_DrawScaledPatch(bi->x, bi->y, fgbuffer, bi->p);
        else
        {
#ifdef DEBUG
            CONS_Printf("V_CopyRect3: %d %d %d %d %d %d %d %d\n", x, y, BG, w, h, x, y, fgbuffer);
#endif
            if (!st_overlay && rendermode == render_soft)       //faB:current hardware mode always refresh the statusbar
                V_CopyRect(x, y, BG, w, h, x, y, fgbuffer);
        }

        bi->oldval = *bi->val;
    }

}
