/*
 * Copyright (C) 1989-95 GROUPE BULL
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, 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:
 *
 * 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. IN NO EVENT SHALL
 * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of GROUPE BULL shall not be
 * used in advertising or otherwise to promote the sale, use or other dealings
 * in this Software without prior written authorization from GROUPE BULL.
 */

/*****************************************************************************\
* Attrib.c:                                                                   *
*                                                                             *
*  XPM library                                                                *
*  Functions related to the XpmAttributes structure                           *
*                                                                             *
*  Developed by Arnaud Le Hors                                                *
\*****************************************************************************/

#include "XpmI.h"

/* 3.2 backward compatibility code */
LFUNC(CreateOldColorTable, int, (XpmColor *ct, int ncolors,
                 XpmColor ***oldct));

LFUNC(FreeOldColorTable, void, (XpmColor **colorTable, int ncolors));

/*
 * Create a colortable compatible with the old style colortable
 */
#ifdef __OS2__
/* Visual Age cannot deal with old, non-ansi, code */
static int
CreateOldColorTable(XpmColor* ct, int ncolors, XpmColor*** oldct)
#else
static int
CreateOldColorTable(ct, ncolors, oldct)
    XpmColor *ct;
    int ncolors;
    XpmColor ***oldct;
#endif
{
    XpmColor **colorTable, **color;
    int a;

    colorTable = (XpmColor **) XpmMalloc(ncolors * sizeof(XpmColor *));
    if (!colorTable) {
    *oldct = NULL;
    return (XpmNoMemory);
    }
    for (a = 0, color = colorTable; a < ncolors; a++, color++, ct++)
    *color = ct;
    *oldct = colorTable;
    return (XpmSuccess);
}

#ifdef __OS2__
/* Visual Age cannot deal with old, non-ansi, code */
static void FreeOldColorTable(XpmColor** colorTable, int ncolors)
#else
static void
FreeOldColorTable(colorTable, ncolors)
    XpmColor **colorTable;
    int ncolors;
#endif
{
    int a, b;
    XpmColor **color;
    char **sptr;

    if (colorTable) {
    for (a = 0, color = colorTable; a < ncolors; a++, color++) {
        for (b = 0, sptr = (char **) *color; b <= NKEYS; b++, sptr++)
        if (*sptr)
            XpmFree(*sptr);
    }
    XpmFree(*colorTable);
    XpmFree(colorTable);
    }
}

/* end 3.2 bc */

/*
 * Free the computed color table
 */
#ifdef __OS2__
/* Visual Age cannot deal with old, non-ansi, code */
void xpmFreeColorTable(XpmColor* colorTable, int ncolors)
#else
void
xpmFreeColorTable(colorTable, ncolors)
    XpmColor *colorTable;
    int ncolors;
#endif
{
    int a, b;
    XpmColor *color;
    char **sptr;

    if (colorTable) {
    for (a = 0, color = colorTable; a < ncolors; a++, color++) {
        for (b = 0, sptr = (char **) color; b <= NKEYS; b++, sptr++)
        if (*sptr)
            XpmFree(*sptr);
    }
    XpmFree(colorTable);
    }
}

/*
 * Free array of extensions
 */
#ifdef __OS2__
/* Visual Age cannot deal with old, non-ansi, code */
void XpmFreeExtensions(XpmExtension* extensions, int nextensions)
#else
void
XpmFreeExtensions(extensions, nextensions)
    XpmExtension *extensions;
    int nextensions;
#endif
{
    unsigned int i, j, nlines;
    XpmExtension *ext;
    char **sptr;

    if (extensions) {
    for (i = 0, ext = extensions; i < (unsigned)nextensions; i++, ext++) {
        if (ext->name)
        XpmFree(ext->name);
        nlines = ext->nlines;
        for (j = 0, sptr = ext->lines; j < nlines; j++, sptr++)
        if (*sptr)
            XpmFree(*sptr);
        if (ext->lines)
        XpmFree(ext->lines);
    }
    XpmFree(extensions);
    }
}

/*
 * Return the XpmAttributes structure size
 */

int
XpmAttributesSize()
{
    return sizeof(XpmAttributes);
}

/*
 * Init returned data to free safely later on
 */
#ifdef __OS2__
/* Visual Age cannot deal with old, non-ansi, code */
void
xpmInitAttributes(XpmAttributes* attributes)
#else
void
xpmInitAttributes(attributes)
    XpmAttributes *attributes;
#endif
{
    if (attributes) {
    attributes->pixels = NULL;
    attributes->npixels = 0;
    attributes->colorTable = NULL;
    attributes->ncolors = 0;
/* 3.2 backward compatibility code */
    attributes->hints_cmt = NULL;
    attributes->colors_cmt = NULL;
    attributes->pixels_cmt = NULL;
/* end 3.2 bc */
    if (attributes->valuemask & XpmReturnExtensions) {
        attributes->extensions = NULL;
        attributes->nextensions = 0;
    }
    if (attributes->valuemask & XpmReturnAllocPixels) {
        attributes->alloc_pixels = NULL;
        attributes->nalloc_pixels = 0;
    }
    }
}

/*
 * Fill in the XpmAttributes with the XpmImage and the XpmInfo
 */
#ifdef __OS2__
/* Visual Age cannot deal with old, non-ansi, code */
void xpmSetAttributes(XpmAttributes* attributes, XpmImage* image, XpmInfo* info)
#else
void
xpmSetAttributes(attributes, image, info)
    XpmAttributes *attributes;
    XpmImage *image;
    XpmInfo *info;
#endif
{
    if (attributes->valuemask & XpmReturnColorTable) {
    attributes->colorTable = image->colorTable;
    attributes->ncolors = image->ncolors;

    /* avoid deletion of copied data */
    image->ncolors = 0;
    image->colorTable = NULL;
    }
/* 3.2 backward compatibility code */
    else if (attributes->valuemask & XpmReturnInfos) {
    int ErrorStatus;

    ErrorStatus = CreateOldColorTable(image->colorTable, image->ncolors,
                      (XpmColor ***)
                      &attributes->colorTable);

    /* if error just say we can't return requested data */
    if (ErrorStatus != XpmSuccess) {
        attributes->valuemask &= ~XpmReturnInfos;
        if (!(attributes->valuemask & XpmReturnPixels)) {
        XpmFree(attributes->pixels);
        attributes->pixels = NULL;
        attributes->npixels = 0;
        }
        attributes->ncolors = 0;
    } else {
        attributes->ncolors = image->ncolors;
        attributes->hints_cmt = info->hints_cmt;
        attributes->colors_cmt = info->colors_cmt;
        attributes->pixels_cmt = info->pixels_cmt;

        /* avoid deletion of copied data */
        image->ncolors = 0;
        image->colorTable = NULL;
        info->hints_cmt = NULL;
        info->colors_cmt = NULL;
        info->pixels_cmt = NULL;
    }
    }
/* end 3.2 bc */
    if (attributes->valuemask & XpmReturnExtensions) {
    attributes->extensions = info->extensions;
    attributes->nextensions = info->nextensions;

    /* avoid deletion of copied data */
    info->extensions = NULL;
    info->nextensions = 0;
    }
    if (info->valuemask & XpmHotspot) {
    attributes->valuemask |= XpmHotspot;
    attributes->x_hotspot = info->x_hotspot;
    attributes->y_hotspot = info->y_hotspot;
    }
    attributes->valuemask |= XpmCharsPerPixel;
    attributes->cpp = image->cpp;
    attributes->valuemask |= XpmSize;
    attributes->width = image->width;
    attributes->height = image->height;
}

/*
 * Free the XpmAttributes structure members
 * but the structure itself
 */
#ifdef __OS2__
/* Visual Age cannot deal with old, non-ansi, code */
void XpmFreeAttributes(XpmAttributes* attributes)
#else
void
XpmFreeAttributes(attributes)
    XpmAttributes *attributes;
#endif
{
    if (attributes->valuemask & XpmReturnPixels && attributes->npixels) {
    XpmFree(attributes->pixels);
    attributes->pixels = NULL;
    attributes->npixels = 0;
    }
    if (attributes->valuemask & XpmReturnColorTable) {
    xpmFreeColorTable(attributes->colorTable, attributes->ncolors);
    attributes->colorTable = NULL;
    attributes->ncolors = 0;
    }
/* 3.2 backward compatibility code */
    else if (attributes->valuemask & XpmInfos) {
    if (attributes->colorTable) {
        FreeOldColorTable((XpmColor **) attributes->colorTable,
                  attributes->ncolors);
        attributes->colorTable = NULL;
        attributes->ncolors = 0;
    }
    if (attributes->hints_cmt) {
        XpmFree(attributes->hints_cmt);
        attributes->hints_cmt = NULL;
    }
    if (attributes->colors_cmt) {
        XpmFree(attributes->colors_cmt);
        attributes->colors_cmt = NULL;
    }
    if (attributes->pixels_cmt) {
        XpmFree(attributes->pixels_cmt);
        attributes->pixels_cmt = NULL;
    }
    if (attributes->pixels) {
        XpmFree(attributes->pixels);
        attributes->pixels = NULL;
        attributes->npixels = 0;
    }
    }
/* end 3.2 bc */
    if (attributes->valuemask & XpmReturnExtensions
    && attributes->nextensions) {
    XpmFreeExtensions(attributes->extensions, attributes->nextensions);
    attributes->extensions = NULL;
    attributes->nextensions = 0;
    }
    if (attributes->valuemask & XpmReturnAllocPixels
    && attributes->nalloc_pixels) {
    XpmFree(attributes->alloc_pixels);
    attributes->alloc_pixels = NULL;
    attributes->nalloc_pixels = 0;
    }
    attributes->valuemask = 0;
}
