/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*-
 * $Id: map_WMS.c,v 1.42 2012/09/23 16:19:22 tvrusso Exp $
 *
 * XASTIR, Amateur Station Tracking and Information Reporting
 * Copyright (C) 1999,2000  Frank Giannandrea
 * Copyright (C) 2000-2012  The Xastir Group
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Look at the README for more information on the program.
 */


#ifdef HAVE_CONFIG_H
#include "config.h"
#endif  // HAVE_CONFIG_H

#include "snprintf.h"

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
#include <ctype.h>
#include <sys/types.h>
#include <pwd.h>
#include <errno.h>

// Needed for Solaris
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif  // HAVE_STRINGS_H

#include <dirent.h>
#include <netinet/in.h>
#include <Xm/XmAll.h>

#ifdef HAVE_X11_XPM_H
#include <X11/xpm.h>
#ifdef HAVE_LIBXPM // if we have both, prefer the extra library
#undef HAVE_XM_XPMI_H
#endif // HAVE_LIBXPM
#endif // HAVE_X11_XPM_H

#ifdef HAVE_XM_XPMI_H
#include <Xm/XpmI.h>
#endif // HAVE_XM_XPMI_H

#include <X11/Xlib.h>

#include <math.h>

#include "xastir.h"
#include "maps.h"
#include "alert.h"
#include "fetch_remote.h"
#include "util.h"
#include "main.h"
#include "datum.h"
#include "draw_symbols.h"
#include "rotated.h"
#include "color.h"
#include "xa_config.h"

#include "map_cache.h"

#define CHECKMALLOC(m)  if (!m) { fprintf(stderr, "***** Malloc Failed *****\n"); exit(0); }

#ifdef HAVE_MAGICK
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else   // TIME_WITH_SYS_TIME
# if HAVE_SYS_TIME_H
#  include <sys/time.h>
# else  // HAVE_SYS_TIME_H
#  include <time.h>
# endif // HAVE_SYS_TIME_H
#endif  // TIME_WITH_SYS_TIME
#undef RETSIGTYPE
// TVR: "stupid ImageMagick"
// The problem is that magick/api.h includes Magick's config.h file, and that
// pulls in all the same autoconf-generated defines that we use.
// plays those games below, but I don't think in the end that they actually 
// make usable macros with our own data in them.
// Fortunately, we don't need them, so I'll just undef the ones that are
// causing problems today.  See main.c for fixes that preserve our values.
#undef PACKAGE
#undef VERSION
/* JMT - stupid ImageMagick */
#define XASTIR_PACKAGE_BUGREPORT PACKAGE_BUGREPORT
#undef PACKAGE_BUGREPORT
#define XASTIR_PACKAGE_NAME PACKAGE_NAME
#undef PACKAGE_NAME
#define XASTIR_PACKAGE_STRING PACKAGE_STRING
#undef PACKAGE_STRING
#define XASTIR_PACKAGE_TARNAME PACKAGE_TARNAME
#undef PACKAGE_TARNAME
#define XASTIR_PACKAGE_VERSION PACKAGE_VERSION
#undef PACKAGE_VERSION
#ifdef HAVE_GRAPHICSMAGICK
/*#include <GraphicsMagick/magick/api.h>*/
#include <magick/api.h>
#else   // HAVE_GRAPHICSMAGICK
#include <magick/api.h>
#endif  // HAVE_GRAPHICSMAGICK 
#undef PACKAGE_BUGREPORT
#define PACKAGE_BUGREPORT XASTIR_PACKAGE_BUGREPORT
#undef XASTIR_PACKAGE_BUGREPORT
#undef PACKAGE_NAME
#define PACKAGE_NAME XASTIR_PACKAGE_NAME
#undef XASTIR_PACKAGE_NAME
#undef PACKAGE_STRING
#define PACKAGE_STRING XASTIR_PACKAGE_STRING
#undef XASTIR_PACKAGE_STRING
#undef PACKAGE_TARNAME
#define PACKAGE_TARNAME XASTIR_PACKAGE_TARNAME
#undef XASTIR_PACKAGE_TARNAME
#undef PACKAGE_VERSION
#define PACKAGE_VERSION XASTIR_PACKAGE_VERSION
#undef XASTIR_PACKAGE_VERSION
#endif // HAVE_MAGICK

// Must be last include file
#include "leak_detection.h"



/**********************************************************
 * draw_WMS_map()
 **********************************************************/
#ifdef HAVE_MAGICK
void draw_WMS_map (Widget w,
        char *filenm,
        int destination_pixmap,
        char *URL,
        transparent_color_record *c_trans_color_head,
        int nocache) {  // If non-zero, don't use cached version


    char file[MAX_FILENAME];        // Complete path/name of image file
    char short_filenm[MAX_FILENAME];
    FILE *f;                        // Filehandle of image file
    char fileimg[MAX_FILENAME];     // Ascii name of image file, read from GEO file
    char WMStmp[MAX_FILENAME*2];  // Used for putting together the WMS map query
    int width, height;
    tiepoint tp[2];                 // Calibration points for map, read in from .geo file
    register long map_c_T, map_c_L; // map delta NW edge coordinates, DNN: these should be signed
    register long tp_c_dx, tp_c_dy; // tiepoint coordinate differences
    unsigned long c_x_min,  c_y_min;// top left coordinates of map inside screen
    unsigned long c_y_max;          // bottom right coordinates of map inside screen
    double c_x;                     // Xastir coordinates 1/100 sec, 0 = 180°W
    double c_y;                     // Xastir coordinates 1/100 sec, 0 =  90°N

    long map_y_0;                   // map pixel pointer prior to TM adjustment
    register long map_x, map_y;     // map pixel pointers, DNN: this was a float, chg to long
    long map_x_min, map_x_max;      // map boundaries for in screen part of map
    long map_y_min, map_y_max;      //
    long map_x_ctr;                 // half map width in pixel
    long map_y_ctr;                 // half map height in pixel
    int map_seen = 0;
    int map_act;
    int map_done;

    long map_c_yc;                  // map center, vert coordinate
    long map_c_xc;                  // map center, hor  coordinate
    double map_c_dx, map_c_dy;      // map coordinates increment (pixel width)
    double c_dx;                    // adjusted map pixel width

    long scr_x,  scr_y;             // screen pixel plot positions
    long scr_xp, scr_yp;            // previous screen plot positions
    int  scr_dx, scr_dy;            // increments in screen plot positions
    long scr_x_mc;                  // map center in screen units

    long scr_c_xr;

    long scale_xa;                  // adjusted for topo maps
    double scale_x_nm;              // nm per Xastir coordinate unit
    long scale_x0;                  // at widest map area

    char local_filename[MAX_FILENAME];
    ExceptionInfo exception;
    Image *image;
    ImageInfo *image_info;
    PixelPacket *pixel_pack;
    PixelPacket temp_pack;
    IndexPacket *index_pack;
    int l;
    XColor my_colors[256];
    int trans_skip = 0;             // skip transparent pixel
    double left, right, top, bottom, map_width, map_height;
    double lat_center  = 0;
    double long_center = 0;

    char map_it[MAX_FILENAME];
    char tmpstr[100];
    int geo_image_width;        // Image width  from GEO file
    int geo_image_height;       // Image height from GEO file

    time_t query_start_time, query_end_time; 

#ifdef USE_MAP_CACHE 
    int map_cache_return;
    char * cache_file_id;
#endif  // USE_MAP_CACHE

    char temp_file_path[MAX_VALUE];

    if (debug_level & 512) {
        if (nocache)
            fprintf(stderr,"draw_WMS_map: NOCACHE selected\n");
        else
            fprintf(stderr,"draw_WMS_map: CACHING if enabled\n");
    }

    // Create a shorter filename for display (one that fits the
    // status line more closely).  Subtract the length of the
    // "Indexing " and/or "Loading " strings as well.
    if (strlen(filenm) > (41 - 9)) {
        int avail = 41 - 11;
        int new_len = strlen(filenm) - avail;

        xastir_snprintf(short_filenm,
            sizeof(short_filenm),
            "..%s",
            &filenm[new_len]);
    }
    else {
        xastir_snprintf(short_filenm,
            sizeof(short_filenm),
            "%s",
            filenm);
    }

    xastir_snprintf(map_it,
        sizeof(map_it),
        langcode ("BBARSTA028"),
        short_filenm);
    statusline(map_it,0);       // Loading ...


        
    // Check whether we're indexing or drawing the map
    if ( (destination_pixmap == INDEX_CHECK_TIMESTAMPS)
            || (destination_pixmap == INDEX_NO_TIMESTAMPS) ) {

        // We're indexing only.  Save the extents in the index.
        // Force the extents to the edges of the earth for the
        // index file.
        index_update_xastir(filenm, // Filename only
            64800000l,      // Bottom
            0l,             // Top
            0l,             // Left
            129600000l,     // Right
            0);             // Default Map Level

        // Update statusline
        xastir_snprintf(map_it,
            sizeof(map_it),
            langcode ("BBARSTA039"),
            short_filenm);
        statusline(map_it,0);       // Loading/Indexing ...

        return; // Done indexing this file
    }


    // Tiepoint for upper left screen corner
    //
    tp[0].img_x = 0;                // Pixel Coordinates
    tp[0].img_y = 0;                // Pixel Coordinates
    tp[0].x_long = NW_corner_longitude;   // Xastir Coordinates
    tp[0].y_lat  = NW_corner_latitude;    // Xastir Coordinates


    // Tiepoint for lower right screen corner
    //
    // Here we must use scale_x for both directions because we have
    // square pixels returned by the WMS server.


// Really what we want to do here is to change our bounding box for
// our request to fit square pixels, using scale_x for both
// dimensions, and to change our tiepoints to match.  WMS servers
// currently feed us back square pixels but the spec says that the
// servers should be capable of sending back rectangular pixels, so
// the images we get back may change if we don't request square
// pixels each time.
//
// TODO:  Change our imagesize, bounding rectangle requested, and
// tiepoints to fit square pixels and to use scale_x for both
// dimensions.
//
// Actually, looking at the changes that were made, it looks like we
// _are_ using square pixels and requesting a bounding box based on
// scale_x for both dimensions, so we might be good to go as-is.


    //
    tp[1].img_x =  screen_width - 1; // Pixel Coordinates
    tp[1].img_y = screen_height - 1; // Pixel Coordinates 
    tp[1].x_long = SE_corner_longitude; // Xastir Coordinates

// Modified to use same scale (scale_x) for both dimensions, square
// pixels.  Don't use SE_corner_latitude here as it uses scale_y!
//    tp[1].y_lat  =  NW_corner_latitude + ((screen_height) * scale_y); // Xastir Coordinates
    tp[1].y_lat  =  NW_corner_latitude + ((screen_height) * scale_x); // Xastir Coordinates


    // Again, use scale_x for both directions due to the square
    // pixels returned from the WMS server.
    //
    left = (double)((NW_corner_longitude - 64800000l )/360000.0);   // Lat/long Coordinates
    top = (double)(-((NW_corner_latitude - 32400000l )/360000.0));  // Lat/long Coordinates
    right = (double)((SE_corner_longitude - 64800000l)/360000.0);//Lat/long Coordinates

// Modified to use same scale (scale_x) for both dimensions, square
// pixels.  Don't use SE_corner_latitude here as it uses scale_y!
//    bottom = (double)(-(((NW_corner_latitude + ((screen_height) * scale_y) ) - 32400000l)/360000.0));//Lat/long Coordinates
    bottom = (double)(-(((NW_corner_latitude + ((screen_height) * scale_x) ) - 32400000l)/360000.0));//Lat/long Coordinates


    map_width = right - left;   // Lat/long Coordinates
    map_height = top - bottom;  // Lat/long Coordinates

    geo_image_width  = screen_width;
    geo_image_height = screen_height;

    long_center = (left + right)/2.0l;
    lat_center  = (top + bottom)/2.0l;


//  Example query for a WMS map server....
//  xastir_snprintf(fileimg, sizeof(fileimg), 
//  "\'http://mesonet.tamu.edu/cgi-bin/p-warn?SERVICE=WMS&VERSION=1.1.1&REQUEST=getmap&layers=radar&BBOX=-129.000,52.500,-111.000,42.500&HEIGHT=1000&WIDTH=1800&FORMAT=image/png\'");


//    xastir_snprintf(WMStmp, sizeof(WMStmp),
//        "http://mesonet.tamu.edu/cgi-bin/p-warn?SERVICE=WMS&VERSION=1.1.1&REQUEST=getmap");


    xastir_snprintf(WMStmp, sizeof(WMStmp), "%s", URL);
    strncat(WMStmp, "&REQUEST=getmap", sizeof(WMStmp) - 1 - strlen(WMStmp));
    strncat(WMStmp, "&EXCEPTIONS=INIMAGE", sizeof(WMStmp) - 1 - strlen(WMStmp));

// This specifies a bounding box based on square pixels.
    xastir_snprintf(tmpstr, sizeof(tmpstr),
        "&BBOX=%8.5f,%7.5f,%8.5f,%7.5f",
        left,   // Lower left
        bottom, // Lower left
        right,  // Upper right
        top);   // Upper right
    strncat (WMStmp, tmpstr, sizeof(WMStmp) - 1 - strlen(WMStmp));

    xastir_snprintf(tmpstr, sizeof(tmpstr), "&HEIGHT=%d", geo_image_height);
    strncat (WMStmp, tmpstr, sizeof(WMStmp) - 1 - strlen(WMStmp));

    xastir_snprintf(tmpstr, sizeof(tmpstr), "&WIDTH=%d", geo_image_width);    
    strncat (WMStmp, tmpstr, sizeof(WMStmp) - 1 - strlen(WMStmp));


// These should be specified in the .geo file instead of hard-coded:
//
//    strncat(WMStmp, "&VERSION=1.0.0", sizeof(WMStmp) - 1 - strlen(WMStmp));
//    strncat(WMStmp, "&FORMAT=image/png", sizeof(WMStmp) - 1 - strlen(WMStmp));
//    strncat(WMStmp, "&TRANSPARENT=TRUE", sizeof(WMStmp) - 1 - strlen(WMStmp));
//    strncat(WMStmp, "&BGCOLOR=0xffffff", sizeof(WMStmp) - 1 - strlen(WMStmp));
//    strncat(WMStmp, "&BGCOLOR=0x000000", sizeof(WMStmp) - 1 - strlen(WMStmp));
//    strncat(WMStmp, "&CRS=CRS:84", sizeof(WMStmp) - 1 - strlen(WMStmp));





/*
    xastir_snprintf(WMStmp, sizeof(WMStmp), "http://tiger.census.gov/cgi-bin/mapper/map.png?");

    if (tiger_show_grid)
        strncat(WMStmp, "&on=GRID", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=GRID", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_counties)
        strncat(WMStmp, "&on=counties", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=counties", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_cities)
        strncat(WMStmp, "&on=CITIES", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=CITIES", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_places)
        strncat(WMStmp, "&on=places", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=places", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_majroads)
        strncat(WMStmp, "&on=majroads", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=majroads", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_streets)
        strncat(WMStmp, "&on=streets", sizeof(WMStmp) - 1 - strlen(WMStmp));
    // Don't turn streets off since this will automagically show up as you zoom in.

    if (tiger_show_railroad)
        strncat(WMStmp, "&on=railroad", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=railroad", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_states)
        strncat(WMStmp, "&on=states", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=states", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_interstate)
        strncat(WMStmp, "&on=interstate", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=interstate", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_ushwy)
        strncat(WMStmp, "&on=ushwy", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=ushwy", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_statehwy)
        strncat(WMStmp, "&on=statehwy", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=statehwy", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_water)
        strncat(WMStmp, "&on=water", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=water", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_lakes)
        strncat(WMStmp, "&on=shorelin", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=shorelin", sizeof(WMStmp) - 1 - strlen(WMStmp));

    if (tiger_show_misc)
        strncat(WMStmp, "&on=miscell", sizeof(WMStmp) - 1 - strlen(WMStmp));
    else
        strncat(WMStmp, "&off=miscell", sizeof(WMStmp) - 1 - strlen(WMStmp));

    xastir_snprintf(tmpstr, sizeof(tmpstr), "&lat=%f\046lon=%f\046", lat_center, long_center);    
    strncat (WMStmp, tmpstr, sizeof(WMStmp) - 1 - strlen(WMStmp));
    xastir_snprintf(tmpstr, sizeof(tmpstr), "wid=%f\046ht=%f\046", map_width, map_height);
    strncat (WMStmp, tmpstr, sizeof(WMStmp) - 1 - strlen(WMStmp));
    xastir_snprintf(tmpstr, sizeof(tmpstr), "iwd=%i\046iht=%i", tp[1].img_x + 1, tp[1].img_y + 1);
    strncat (WMStmp, tmpstr, sizeof(WMStmp) - 1 - strlen(WMStmp)); */


    xastir_snprintf(fileimg, sizeof(fileimg), "%s", WMStmp);

    if (debug_level & 512) {
          fprintf(stderr,"left side is %f\n", left);
          fprintf(stderr,"right side is %f\n", right);
          fprintf(stderr,"top  is %f\n", top);
          fprintf(stderr,"bottom is %f\n", bottom);
          fprintf(stderr,"lat center is %f\n", lat_center);
          fprintf(stderr,"long center is %f\n", long_center);
          fprintf(stderr,"screen width is %li\n", screen_width);
          fprintf(stderr,"screen height is %li\n", screen_height);
          fprintf(stderr,"map width is %f\n", map_width);
          fprintf(stderr,"map height is %f\n", map_height);
          fprintf(stderr,"fileimg is %s\n", fileimg);
          fprintf(stderr,"ftp or http file: %s\n", fileimg);
    }

    if (debug_level & 512) {
        query_start_time=time(&query_start_time); 
    }


#ifdef USE_MAP_CACHE 

    if (nocache || map_cache_fetch_disable) {

        // Delete old copy from the cache
        if (map_cache_fetch_disable && fileimg[0] != '\0') {
            if (map_cache_del(fileimg)) {
                if (debug_level & 512) {
                    fprintf(stderr,"Couldn't delete old map from cache\n");
                }
            }
        }

        // Simulate a cache miss
        map_cache_return = 1;
    }
    else {
        // Else look for the file in the cache
    	map_cache_return = map_cache_get(fileimg,local_filename); 
    }

	if (debug_level & 512) {
		fprintf(stderr,"map_cache_return: %d\n", map_cache_return);
	}
 

    // Don't use cached version if "nocache" is non-zero
    //	   
    if (nocache || map_cache_return != 0 ) {
        // Caching has not been requested or cached file not found.
        // We must snag the remote file via libcurl or wget.

        if (nocache) {
            xastir_snprintf(local_filename,
                sizeof(local_filename),
                "%s/map.%s",
                 get_user_base_dir("tmp", temp_file_path, sizeof(temp_file_path)),
                "png");
        }
        else {
            cache_file_id = map_cache_fileid();
            xastir_snprintf(local_filename,
                sizeof(local_filename),
                "%s/map_%s.%s",
                get_user_base_dir("map_cache", temp_file_path, sizeof(temp_file_path)),
                cache_file_id,
                "png");
            free(cache_file_id);
        }

#else   // USE_MAP_CACHE

    xastir_snprintf(local_filename,
        sizeof(local_filename),
        "%s/map.%s",
         get_user_base_dir("tmp", temp_file_path, sizeof(temp_file_path)),
        "png");

#endif  // USE_MAP_CACHE


    // Erase any previously existing local file by the same name.
    // This avoids the problem of having an old map image here and
    // the code trying to display it when the download fails.

    unlink( local_filename );

    HandlePendingEvents(app_context);
    if (interrupt_drawing_now) {
        // Update to screen
        (void)XCopyArea(XtDisplay(da),
            pixmap,
            XtWindow(da),
            gc,
            0,
            0,
            (unsigned int)screen_width,
            (unsigned int)screen_height,
            0,
            0);
        return;
    }

    if (fetch_remote_file(fileimg, local_filename)) {
        // Had trouble getting the file.  Abort.
        return;
    }

    // For debugging the MagickError/MagickWarning segfaults.
    //system("cat /dev/null >/var/tmp/xastir_hacker_map.png");

    
#ifdef USE_MAP_CACHE

    // Cache this map only if nocache is zero
    if (!nocache) {
        map_cache_put(fileimg,local_filename);
    }

        } // end if is cached  DHBROWN
#endif // USE_MAP_CACHE


    if (debug_level & 512) {
        fprintf (stderr, "Fetch or query took %d seconds\n", 
            (int) (time(&query_end_time) - query_start_time)); 
    }

    // Set permissions on the file so that any user can overwrite it.
    chmod(local_filename, 0666);

    // Tell ImageMagick where to find it
    xastir_snprintf(file,
        sizeof(file),
        "%s",
        local_filename);

    GetExceptionInfo(&exception);

    image_info=CloneImageInfo((ImageInfo *) NULL);

    xastir_snprintf(image_info->filename,
        sizeof(image_info->filename),
        "%s",
        file);

    if (debug_level & 512) {
           fprintf(stderr,"Copied %s into image info.\n", file);
           fprintf(stderr,"image_info got: %s\n", image_info->filename);
           fprintf(stderr,"Entered ImageMagick code.\n");
           fprintf(stderr,"Attempting to open: %s\n", image_info->filename);
    }

    // We do a test read first to see if the file exists, so we
    // don't kill Xastir in the ReadImage routine.
    f = fopen (image_info->filename, "r");
    if (f == NULL) {
        if (debug_level & 512)
            fprintf(stderr,"File could not be read\n");
        
#ifdef USE_MAP_CACHE
        // clear from cache if bad    
        if (map_cache_del(fileimg)) {
            if (debug_level & 512) {
                fprintf(stderr,"Couldn't delete map from cache\n");
            }
        }
#endif
         
        if (image_info)
            DestroyImageInfo(image_info);
	DestroyExceptionInfo(&exception);
        return;
    }
    (void)fclose (f);


    image = ReadImage(image_info, &exception);

    if (image == (Image *) NULL) {
        MagickWarning(exception.severity, exception.reason, exception.description);
        //fprintf(stderr,"MagickWarning\n");

#ifdef USE_MAP_CACHE
        // clear from cache if bad    
        if (map_cache_del(fileimg)) {
            if (debug_level & 512) {
                fprintf(stderr,"Couldn't delete map from cache\n");
            }
        }
#endif

        if (image_info)
            DestroyImageInfo(image_info);
	DestroyExceptionInfo(&exception);
        return;
    }


    if (debug_level & 512)
        fprintf(stderr,"Color depth is %i \n", (int)image->depth);

    if (image->colorspace != RGBColorspace) {
        fprintf(stderr,"TBD: I don't think we can deal with colorspace != RGB");
        if (image)
            DestroyImage(image);
        if (image_info)
            DestroyImageInfo(image_info);
        DestroyExceptionInfo(&exception);
        return;
    }

    width = image->columns;
    height = image->rows;

    //  Code to mute the image so it's not as bright.
/*    if (raster_map_intensity < 1.0) {
        char tempstr[30];

        if (debug_level & 512)
            fprintf(stderr,"level=%s\n", tempstr);

        xastir_snprintf(tempstr,
            sizeof(tempstr),
            "%d, 100, 100",
            (int)(raster_map_intensity * 100.0));

        ModulateImage(image, tempstr);
    }
*/


    // If were are drawing to a low bpp display (typically < 8bpp)
    // try to reduce the number of colors in an image.
    // This may take some time, so it would be best to do ahead of
    // time if it is a static image.
#if (MagickLibVersion < 0x0540)
    if (visual_type == NOT_TRUE_NOR_DIRECT && GetNumberColors(image, NULL) > 128) {
#else   // MagickLib >= 540
    if (visual_type == NOT_TRUE_NOR_DIRECT && GetNumberColors(image, NULL, &exception) > 128) {
#endif  // MagickLib Version

        if (image->storage_class == PseudoClass) {
#if (MagickLibVersion < 0x0549)
            CompressColormap(image); // Remove duplicate colors
#else // MagickLib >= 0x0549
            CompressImageColormap(image); // Remove duplicate colors
#endif  // MagickLibVersion < 0x0549
        }

        // Quantize down to 128 will go here...
    }


    pixel_pack = GetImagePixels(image, 0, 0, image->columns, image->rows);
    if (!pixel_pack) {
        fprintf(stderr,"pixel_pack == NULL!!!");
        if (image)
            DestroyImage(image);
        if (image_info)
            DestroyImageInfo(image_info);
        DestroyExceptionInfo(&exception);
        return;
    }


    index_pack = GetIndexes(image);
    if (image->storage_class == PseudoClass && !index_pack) {
        fprintf(stderr,"PseudoClass && index_pack == NULL!!!");
        if (image)
            DestroyImage(image);
        if (image_info)
            DestroyImageInfo(image_info);
        DestroyExceptionInfo(&exception);
        return;
    }


    if (image->storage_class == PseudoClass && image->colors <= 256) {
        for (l = 0; l < (int)image->colors; l++) {
            // Need to check how to do this for ANY image, as ImageMagick can read in all sorts
            // of image files
            temp_pack = image->colormap[l];
            if (debug_level & 512)
                fprintf(stderr,"Colormap color is %i  %i  %i \n",
                       temp_pack.red, temp_pack.green, temp_pack.blue);

            // Here's a tricky bit:  PixelPacket entries are defined as Quantum's.  Quantum
            // is defined in /usr/include/magick/image.h as either an unsigned short or an
            // unsigned char, depending on what "configure" decided when ImageMagick was installed.
            // We can determine which by looking at MaxRGB or QuantumDepth.
            //
            if (QuantumDepth == 16) {   // Defined in /usr/include/magick/image.h
                if (debug_level & 512)
                    fprintf(stderr,"Color quantum is [0..65535]\n");
                my_colors[l].red   = temp_pack.red * raster_map_intensity;
                my_colors[l].green = temp_pack.green * raster_map_intensity;
                my_colors[l].blue  = temp_pack.blue * raster_map_intensity;
            }
            else {  // QuantumDepth = 8
                if (debug_level & 512)
                    fprintf(stderr,"Color quantum is [0..255]\n");
                my_colors[l].red   = (temp_pack.red << 8) * raster_map_intensity;
                my_colors[l].green = (temp_pack.green << 8) * raster_map_intensity;
                my_colors[l].blue  = (temp_pack.blue << 8) * raster_map_intensity;
            }

            // Get the color allocated on < 8bpp displays. pixel color is written to my_colors.pixel
            if (visual_type == NOT_TRUE_NOR_DIRECT) {
//                XFreeColors(XtDisplay(w), cmap, &(my_colors[l].pixel),1,0);
                XAllocColor(XtDisplay(w), cmap, &my_colors[l]);
            }
            else {
                pack_pixel_bits(my_colors[l].red, my_colors[l].green, my_colors[l].blue,
                                &my_colors[l].pixel);
            }

            if (debug_level & 512)
                fprintf(stderr,"Color allocated is %li  %i  %i  %i \n", my_colors[l].pixel,
                       my_colors[l].red, my_colors[l].blue, my_colors[l].green);
        }
    }



    /*
    * Here are the corners of our viewport, using the Xastir
    * coordinate system.  Notice that Y is upside down:
    *
    *   left edge of view = NW_corner_longitude
    *  right edge of view = SE_corner_longitude
    *    top edge of view =  NW_corner_latitude
    * bottom edge of view =  SE_corner_latitude
    *
    * The corners of our map will soon be (after translating the
    * tiepoints to the corners if they're not already there):
    *
    *   left edge of map = tp[0].x_long   in Xastir format
    *  right edge of map = tp[1].x_long
    *    top edge of map = tp[0].y_lat
    * bottom edge of map = tp[1].y_lat
    *
    */
    map_c_L = tp[0].x_long - NW_corner_longitude;     // map left coordinate
    map_c_T = tp[0].y_lat  - NW_corner_latitude;      // map top  coordinate

    tp_c_dx = (long)(tp[1].x_long - tp[0].x_long);//  Width between tiepoints
    tp_c_dy = (long)(tp[1].y_lat  - tp[0].y_lat); // Height between tiepoints


    // Check for tiepoints being in wrong relation to one another
    if (tp_c_dx < 0) 
        tp_c_dx = -tp_c_dx;       // New  width between tiepoints
    if (tp_c_dy < 0) 
        tp_c_dy = -tp_c_dy;       // New height between tiepoints

    // Calculate step size per pixel
    map_c_dx = ((double) tp_c_dx / abs(tp[1].img_x - tp[0].img_x));
    map_c_dy = ((double) tp_c_dy / abs(tp[1].img_y - tp[0].img_y));

    // Scaled screen step size for use with XFillRectangle below
    scr_dx = (int) (map_c_dx / scale_x) + 1;
    scr_dy = (int) (map_c_dy / scale_y) + 1;

    // calculate top left map corner from tiepoints
    if (tp[0].img_x != 0) {
        tp[0].x_long -= (tp[0].img_x * map_c_dx);   // map left edge longitude
        map_c_L = tp[0].x_long - NW_corner_longitude;     // delta ??
        tp[0].img_x = 0;
        if (debug_level & 512)
            fprintf(stderr,"Translated tiepoint_0 x: %d\t%lu\n", tp[0].img_x, tp[0].x_long);
    }
    if (tp[0].img_y != 0) {
        tp[0].y_lat -= (tp[0].img_y * map_c_dy);    // map top edge latitude
        map_c_T = tp[0].y_lat - NW_corner_latitude;
        tp[0].img_y = 0;
        if (debug_level & 512)
            fprintf(stderr,"Translated tiepoint_0 y: %d\t%lu\n", tp[0].img_y, tp[0].y_lat);
    }

    // calculate bottom right map corner from tiepoints
    // map size is geo_image_width / geo_image_height
    if (tp[1].img_x != (geo_image_width - 1) ) {
        tp[1].img_x = geo_image_width - 1;
        tp[1].x_long = tp[0].x_long + (tp[1].img_x * map_c_dx); // right
        if (debug_level & 512)
            fprintf(stderr,"Translated tiepoint_1 x: %d\t%lu\n", tp[1].img_x, tp[1].x_long);
    }
    if (tp[1].img_y != (geo_image_height - 1) ) {
        tp[1].img_y = geo_image_height - 1;
        tp[1].y_lat = tp[0].y_lat + (tp[1].img_y * map_c_dy);   // bottom
        if (debug_level & 512)
            fprintf(stderr,"Translated tiepoint_1 y: %d\t%lu\n", tp[1].img_y, tp[1].y_lat);
    }

    if (debug_level & 512) {
        fprintf(stderr,"X tiepoint width: %ld\n", tp_c_dx);
        fprintf(stderr,"Y tiepoint width: %ld\n", tp_c_dy);
        fprintf(stderr,"Loading imagemap: %s\n", file);
        fprintf(stderr,"\nImage: %s\n", file);
        fprintf(stderr,"Image size %d %d\n", geo_image_width, geo_image_height);
        fprintf(stderr,"XX: %ld YY:%ld Sx %f %d Sy %f %d\n",
            map_c_L, map_c_T, map_c_dx,(int) (map_c_dx / scale_x), map_c_dy, (int) (map_c_dy / scale_y));
        fprintf(stderr,"Image size %d %d\n", width, height);
#if (MagickLibVersion < 0x0540)
        fprintf(stderr,"Unique colors = %d\n", GetNumberColors(image, NULL));
#else // MagickLib < 540
        fprintf(stderr,"Unique colors = %ld\n", GetNumberColors(image, NULL, &exception));
#endif // MagickLib < 540
        fprintf(stderr,"XX: %ld YY:%ld Sx %f %d Sy %f %d\n", map_c_L, map_c_T,
            map_c_dx,(int) (map_c_dx / scale_x), map_c_dy, (int) (map_c_dy / scale_y));
        fprintf(stderr,"image matte is %i\n", image->matte);
    } // debug_level & 512

    // draw the image from the file out to the map screen

    // Get the border values for the X and Y for loops used
    // for the XFillRectangle call later.

    map_c_yc = (tp[0].y_lat + tp[1].y_lat) / 2;     // vert center of map as reference
    map_y_ctr = (long)(height / 2 +0.499);
    scale_x0 = get_x_scale(0,map_c_yc,scale_y);     // reference scaling at vert map center

    map_c_xc  = (tp[0].x_long + tp[1].x_long) / 2;  // hor center of map as reference
    map_x_ctr = (long)(width  / 2 +0.499);
    scr_x_mc  = (map_c_xc - NW_corner_longitude) / scale_x; // screen coordinates of map center

    // calculate map pixel range in y direction that falls into screen area
    c_y_max = 0ul;
    map_y_min = map_y_max = 0l;
    for (map_y_0 = 0, c_y = tp[0].y_lat; map_y_0 < (long)height; map_y_0++, c_y += map_c_dy) {
        scr_y = (c_y - NW_corner_latitude) / scale_y;   // current screen position
        if (scr_y > 0) {
            if (scr_y < screen_height) {
                map_y_max = map_y_0;          // update last map pixel in y
                c_y_max = (unsigned long)c_y;// bottom map inside screen coordinate
            } else
                break;                      // done, reached bottom screen border
        } else {                            // pixel is above screen
            map_y_min = map_y_0;              // update first map pixel in y
        }
    }
    c_y_min = (unsigned long)(tp[0].y_lat + map_y_min * map_c_dy);   // top map inside screen coordinate

        map_x_min = map_x_max = 0l;
        for (map_x = 0, c_x = tp[0].x_long; map_x < (long)width; map_x++, c_x += map_c_dx) {
            scr_x = (c_x - NW_corner_longitude)/ scale_x;  // current screen position
            if (scr_x > 0) {
                if (scr_x < screen_width)
                    map_x_max = map_x;          // update last map pixel in x
                else
                    break;                      // done, reached right screen border
            } else {                            // pixel is left from screen
                map_x_min = map_x;              // update first map pixel in x
            }
        }
        c_x_min = (unsigned long)(tp[0].x_long + map_x_min * map_c_dx);   // left map inside screen coordinate

    scr_yp = -1;
    scr_c_xr = SE_corner_longitude;
    c_dx = map_c_dx;                            // map pixel width
    scale_xa = scale_x0;                        // the compiler likes it ;-)

    map_done = 0;
    map_act  = 0;
    map_seen = 0;
    scr_y = screen_height - 1;


    // loop over map pixel rows
    for (map_y_0 = map_y_min, c_y = (double)c_y_min; (map_y_0 <= map_y_max); map_y_0++, c_y += map_c_dy) {

        HandlePendingEvents(app_context);
        if (interrupt_drawing_now) {
            if (image)
                DestroyImage(image);
            if (image_info)
                DestroyImageInfo(image_info);
            // Update to screen
            (void)XCopyArea(XtDisplay(da),
                pixmap,
                XtWindow(da),
                gc,
                0,
                0,
                (unsigned int)screen_width,
                (unsigned int)screen_height,
                0,
                0);
            return;
        }

        scr_y = (c_y - NW_corner_latitude) / scale_y;
        if (scr_y != scr_yp) {                  // don't do a row twice
            scr_yp = scr_y;                     // remember as previous y
            scr_xp = -1;
            // loop over map pixel columns
            map_act = 0;
            scale_x_nm = calc_dscale_x(0,(long)c_y) / 1852.0;  // nm per Xastir coordinate
            for (map_x = map_x_min, c_x = (double)c_x_min; map_x <= map_x_max; map_x++, c_x += c_dx) {
                scr_x = (c_x - NW_corner_longitude) / scale_x;
                if (scr_x != scr_xp) {      // don't do a pixel twice
                    scr_xp = scr_x;         // remember as previous x
                    map_y = map_y_0;

                    if (map_y >= 0 && map_y <= tp[1].img_y) { // check map boundaries in y direction
                        map_seen = 1;
                        map_act = 1;    // detects blank screen rows (end of map)

                        // now copy a pixel from the map image to the screen
                        l = map_x + map_y * image->columns;
                        trans_skip = 1; // possibily transparent
                        if (image->storage_class == PseudoClass) {
                            if ( c_trans_color_head &&
                                    check_trans(my_colors[index_pack[l]],c_trans_color_head)) {
                                trans_skip = 1; // skip it
                            }
                            else {
                                XSetForeground(XtDisplay(w), gc, my_colors[index_pack[l]].pixel);
                                trans_skip = 0; // draw it
                            }
                        }
                        else {
                            // It is not safe to assume that the red/green/blue
                            // elements of pixel_pack of type Quantum are the
                            // same as the red/green/blue of an XColor!
                            if (QuantumDepth==16) {
                                my_colors[0].red=pixel_pack[l].red;
                                my_colors[0].green=pixel_pack[l].green;
                                my_colors[0].blue=pixel_pack[l].blue;
                            }
                            else { // QuantumDepth=8
                                // shift the bits of the 8-bit quantity so that
                                // they become the high bigs of my_colors.*
                                my_colors[0].red=pixel_pack[l].red<<8;
                                my_colors[0].green=pixel_pack[l].green<<8;
                                my_colors[0].blue=pixel_pack[l].blue<<8;
                            }
                            // NOW my_colors has the right r,g,b range for
                            // pack_pixel_bits
                            pack_pixel_bits(my_colors[0].red * raster_map_intensity,
                                            my_colors[0].green * raster_map_intensity,
                                            my_colors[0].blue * raster_map_intensity,
                                            &my_colors[0].pixel);
                            if ( c_trans_color_head &&
                                    check_trans(my_colors[0],c_trans_color_head)) {
                                trans_skip = 1; // skip it
                            }
                            else {
                                XSetForeground(XtDisplay(w), gc, my_colors[0].pixel);
                                trans_skip = 0; // draw it
                            }
                        }

                        // Skip drawing if a transparent pixel
                        if (!trans_skip) {
                            (void)XFillRectangle (XtDisplay (w),pixmap,gc,scr_x,scr_y,scr_dx,scr_dy);
                        }

                    } // check map boundaries in y direction
                }
            } // loop over map pixel columns
            if (map_seen && !map_act)
                map_done = 1;
        }
    } // loop over map pixel rows

    if (image)
       DestroyImage(image);
    if (image_info)
       DestroyImageInfo(image_info);
    DestroyExceptionInfo(&exception);
}
#endif //HAVE_MAGICK
