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//

// Micro-Windows/Nano-X additional setup fo eCos

//

#include <pkgconf/kernel.h>

#include <pkgconf/hal.h>

#include <cyg/kernel/kapi.h>

#include <stdio.h>

#include <stdlib.h>

#include <fcntl.h>

#include <unistd.h>

#include <time.h>

#include <ctype.h>

#include <errno.h>

#include <sys/time.h>

#define MWINCLUDECOLORS

#include <nano-X.h>

#include <nwidgets.h>

static bool closed = false;

static void

do_close(NBUTTON * w, int b)

{

   printf("Button %d was clicked in widget %p\n",b,w);

   closed = true;

}

// Display a number of ticks as microseconds

// Note: for improved calculation significance, values are kept in ticks*1000

static void

show_ns(long long ns)

{

    diag_printf("%5d.%02d", (int)(ns/1000), (int)((ns%1000)/10));

}

static long rtc_resolution[] = CYGNUM_KERNEL_COUNTERS_RTC_RESOLUTION;

static long ns_per_system_clock;

static long long

ns_time(void)

{

    unsigned long off;

    long long ns, clocks;

    ns_per_system_clock = 1000000/rtc_resolution[1];

    HAL_CLOCK_READ(&off);

    ns = (ns_per_system_clock * (long long)off) / CYGNUM_KERNEL_COUNTERS_RTC_PERIOD;

    ns += 5;  // for rounding to .01us

    clocks = (cyg_current_time() * 10000000) + ns;

    return clocks;

}

static void

test_file_io(void)

{

    long long start_time, end_time;

    FILE *fp;

    unsigned char buf[256];

    int len, n, fd;

    start_time = ns_time();

    if ((fp = fopen("/bin/letters.cl", "r")) != (FILE *)NULL) {

        len = 0;

        while (fgets(buf, sizeof(buf), fp)) {

            len += strlen(buf);

        }

        fclose(fp);

    }

    end_time = ns_time();

    diag_printf("'fgets': %d bytes in ", len); show_ns(end_time-start_time);  diag_printf("ns\n");

    start_time = ns_time();

    if ((fp = fopen("/bin/letters.cl", "r")) != (FILE *)NULL) {

        len = 0;

        while (n = fread(buf, 1, sizeof(buf), fp)) {

            len += n;

        }

        fclose(fp);

    }

    end_time = ns_time();

    diag_printf("'fread': %d bytes in ", len); show_ns(end_time-start_time);  diag_printf("ns\n");

    start_time = ns_time();

    if ((fd = open("/bin/letters.cl", O_RDONLY)) >= 0) {

        len = 0;

        while (n = read(fd, buf, sizeof(buf))) {

            len += n;

        }

        close(fd);

    }

    end_time = ns_time();

    diag_printf("'read': %d bytes in ", len); show_ns(end_time-start_time);  diag_printf("ns\n");

}

void

ecos_nx_init(CYG_ADDRWORD data)

{

    GR_SCREEN_INFO      si;             /* window information */

    GR_FONT_INFO        fi;             /* font information */

    GR_WINDOW_ID        mainwid;        /* main window id */

    GR_WM_PROPERTIES    props;

    GR_GC_ID            gct = 0;

    NWIDGET             *w;

    NBUTTON             *b;

    NTEXTFIELD          *t;

    cyg_thread_delay(50);

    INIT_PER_THREAD_DATA();

    test_file_io();

    if(GrOpen() < 0) {

        fprintf(stderr, "Couldn't connect to Nano-X server\n");

        exit(1);

    }

    GrGetScreenInfo(&si);

    GrGetFontInfo(0, &fi);

#if 0

    mainwid = GrNewWindow(GR_ROOT_WINDOW_ID, 0, 0, si.cols, si.rows,

                          0, RED, WHITE);

    props.flags = GR_WM_FLAGS_PROPS;

    props.props = GR_WM_PROPS_BORDER;

    GrSetWMProperties(mainwid, &props);

    GrMapWindow(mainwid);

    GrFlush();

    cyg_thread_delay(50);

    gct = GrNewGC();

    GrSetGCForeground(gct, WHITE);

    GrSetGCFont(gct, GrCreateFont(GR_FONT_GUI_VAR, 0, NULL));

    GrDrawImageFromFile(mainwid, gct, 0, 0, si.cols, si.rows, "/redhat.logo", 0);

    GrText(mainwid, gct, 80, 350, "Tap all 4 corners", 17, GR_TFTOP);

    GrFlush();

#endif

    n_init_button_class();

    n_init_textfield_class();

    w = NEW_NOBJECT(widget);

    n_widget_init(w, 0);

    n_widget_resize(w, si.cols - 10, si.rows - 30);

    n_widget_background(w, "/redhat.logo");

    n_widget_show(w);

    b = NEW_NOBJECT(button);

    n_button_init(b, w, "Close");

    n_button_onclick(b, do_close);

    n_widget_resize(b, 40, 20);

    n_widget_move(b,180,260);

    n_widget_show(b);

    t = NEW_NOBJECT(textfield);

    n_textfield_init(t,w,"Tap all 4 corners");

    n_widget_move(t,45,220);

    n_widget_resize(t,120,20);

    n_widget_show(t);

    t = NEW_NOBJECT(textfield);

    n_textfield_init(t,w,"Then press close");

    n_widget_move(t,45,250);

    n_widget_resize(t,120,20);

    n_widget_show(t);

    while (!closed) {

        n_handle_event();

    }

    n_widget_hide(w);

    n_object_cleanup(w);

//    printf("Tap all four corners\n");

//    cyg_thread_delay(10*100);

    GrClose();

}