/*
 * win16 driver text functions
 *
 * Copyright 1996 John Harvey
 *           1998 Huw Davies
 */

#include <stdlib.h>
#include "win16drv.h"
#include "dc.h"
#include "gdi.h"
#include "debugtools.h"
#include "winbase.h"

DEFAULT_DEBUG_CHANNEL(win16drv)

/***********************************************************************
 *           WIN16DRV_ExtTextOut
 */
BOOL WIN16DRV_ExtTextOut( DC *dc, INT x, INT y, UINT flags,
                           const RECT *lprect, LPCWSTR wstr, UINT count,
                           const INT *lpDx )
{
    WIN16DRV_PDEVICE *physDev = (WIN16DRV_PDEVICE *)dc->physDev;
    BOOL bRet = 1;
    RECT16	 clipRect;
    RECT16 	 opaqueRect;
    RECT16 	*lpOpaqueRect = NULL; 
    WORD wOptions = 0;
    WORD wCount = count;
    INT16 width;
    char *str;
    DWORD dwRet;

    if (count == 0)
        return FALSE;

    TRACE("%04x %d %d %x %p %s %p\n",
	  dc->hSelf, x, y, flags, lprect, debugstr_wn(wstr, count), lpDx);

    str = HeapAlloc( GetProcessHeap(), 0, count+1 );
    lstrcpynWtoA( str, wstr, count+1 );

    clipRect.left = 0;
    clipRect.top = 0;
        
    clipRect.right = dc->w.devCaps->horzRes;
    clipRect.bottom = dc->w.devCaps->vertRes;
    if (lprect) {
	opaqueRect.left = lprect->left;
	opaqueRect.top = lprect->top;
	opaqueRect.right = lprect->right;
	opaqueRect.bottom = lprect->bottom;
	lpOpaqueRect = &opaqueRect;
    }
        
    TRACE("textalign = %d\n", dc->w.textAlign);

    if (dc->w.textAlign & TA_UPDATECP) {
        x = dc->w.CursPosX;
	y = dc->w.CursPosY;
    }

    x = XLPTODP( dc, x );
    y = YLPTODP( dc, y );

    dwRet = PRTDRV_ExtTextOut(physDev->segptrPDEVICE, 0, 0, 
			      NULL, str, -count,  physDev->FontInfo, 
			      win16drv_SegPtr_DrawMode,
			      win16drv_SegPtr_TextXForm,
			      NULL, NULL, 0);

    width = LOWORD(dwRet);

    switch( dc->w.textAlign & (TA_LEFT | TA_RIGHT | TA_CENTER) ) {
    case TA_LEFT:
        if (dc->w.textAlign & TA_UPDATECP)
	    dc->w.CursPosX = XDPTOLP( dc, x + width );
	break;
    case TA_RIGHT:
        x -= width;
	if (dc->w.textAlign & TA_UPDATECP)
	    dc->w.CursPosX = XDPTOLP( dc, x );
	break;
    case TA_CENTER:
        x -= width / 2;
	break;
    }

    switch( dc->w.textAlign & (TA_TOP | TA_BOTTOM | TA_BASELINE) ) {
    case TA_TOP:
        break;
    case TA_BOTTOM:
        y -= physDev->FontInfo->dfPixHeight;
	break;
    case TA_BASELINE:
        y -= physDev->FontInfo->dfAscent;
	break;    
    }

    dwRet = PRTDRV_ExtTextOut(physDev->segptrPDEVICE, 
			      x, y, &clipRect, str, wCount,
			      physDev->FontInfo, win16drv_SegPtr_DrawMode, 
			      win16drv_SegPtr_TextXForm, NULL, lpOpaqueRect,
			      wOptions);

    HeapFree( GetProcessHeap(), 0, str );
    return bRet;
}