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/*

 * Copyright (c) 2000, 2001 Greg Haerr <greg@censoft.com>

 *

 * nxview - Nano-X image viewer

 *

 * Autorecognizes and displays BMP, GIF, JPEG, PNG and XPM files

 */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#define MWINCLUDECOLORS

#include "nano-X.h"

int

main(int argc,char **argv)

{

        GR_IMAGE_ID     image_id;

        GR_WINDOW_ID    window_id;

        GR_GC_ID        gc_id;

        GR_SIZE         w = -1;

        GR_SIZE         h = -1;

        GR_EVENT        event;

        GR_SCREEN_INFO  sinfo;

        GR_IMAGE_INFO   info;

        char            title[256];

        if (argc < 2) {

                printf("Usage: nxview <image file> [stretch]\n");

                exit(1);

        }

        if (GrOpen() < 0) {

                fprintf(stderr, "cannot open graphics\n");

                exit(1);

        }

        if (!(image_id = GrLoadImageFromFile(argv[1], 0))) {

                fprintf(stderr, "Can't load image file: %s\n", argv[1]);

                exit(1);

        }

        if(argc > 2) {

                /* stretch to half screen size*/

                GrGetScreenInfo(&sinfo);

                w = sinfo.cols/2;

                h = sinfo.rows/2;

        } else {

                GrGetImageInfo(image_id, &info);

                w = info.width;

                h = info.height;

        }

        sprintf(title, "nxview %s", argv[1]);

        window_id = GrNewWindowEx(GR_WM_PROPS_APPWINDOW, title,

                GR_ROOT_WINDOW_ID, 0, 0, w, h, BLACK);

        GrSelectEvents(window_id,

                GR_EVENT_MASK_CLOSE_REQ|GR_EVENT_MASK_EXPOSURE);

        GrMapWindow(window_id);

        gc_id = GrNewGC();

        while (1) {

                GrGetNextEvent(&event);

                switch(event.type) {

                case GR_EVENT_TYPE_CLOSE_REQ:

                        GrDestroyWindow(window_id);

                        GrDestroyGC(gc_id);

                        GrFreeImage(image_id);

                        GrClose();

                        exit(0);

                        /* no return*/

                case GR_EVENT_TYPE_EXPOSURE:

                        GrDrawImageToFit(window_id, gc_id, 0,0, w,h, image_id);

                        break;

                }

        }

        return 0;

}