280 lines
6.6 KiB
C
280 lines
6.6 KiB
C
/*
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* E-Wireless.c - 802.11 Signal quality montioring epplet
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* copyleft (C) Mark C. Langston 1999
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* Damn near all the code originally from: cocidius@telebot.net
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* and his E-CpuX Epplet.
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*/
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#include "config.h"
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#include "epplet.h"
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#define HEIGHT 30
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#define WIDTH 40
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static Window win;
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static RGB_buf buf;
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static Epplet_gadget da, btn_close, btn_config, btn_about;
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static Epplet_gadget lbl_cpu, lbl_usage, popup;
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static int cpu_hist_size = 0;
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static int *cpu_hist = NULL;
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static int hist_pos = 0;
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static int color = 0;
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static unsigned char colors[7][3][3] = {
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{{0x00, 0x23, 0x00}, {0x00, 0x50, 0x00}, {0x00, 0xff, 0x00}}, //green
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{{0x00, 0x00, 0x23}, {0x00, 0x00, 0x50}, {0x00, 0x00, 0xff}}, //blue
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{{0x23, 0x00, 0x00}, {0x50, 0x00, 0x00}, {0xff, 0x00, 0x00}}, //red
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{{0x23, 0x23, 0x00}, {0x50, 0x50, 0x00}, {0xff, 0xff, 0x00}}, //yellow
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{{0x00, 0x23, 0x23}, {0x00, 0x50, 0x50}, {0x00, 0xff, 0xff}}, //cyan
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{{0x23, 0x00, 0x23}, {0x50, 0x00, 0x50}, {0xff, 0x00, 0xff}}, //magenta
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{{0x23, 0x23, 0x23}, {0x50, 0x50, 0x50}, {0xff, 0xff, 0xff}}, //gray
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};
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static void
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draw_line(unsigned char *rgb, int x1, int y1, int x2, int y2,
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unsigned char *clr)
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{
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unsigned char *rptr;
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int i, steep = 0, sx, sy, dx, dy, e;
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dx = abs(x2 - x1);
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sx = ((x2 - x1) > 0) ? 1 : -1;
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dy = abs(y2 - y1);
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sy = ((y2 - y1) > 0) ? 1 : -1;
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if (dy > dx)
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{
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steep = 1;
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x1 ^= y1;
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y1 ^= x1;
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x1 ^= y1;
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dx ^= dy;
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dy ^= dx;
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dx ^= dy;
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sx ^= sy;
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sy ^= sx;
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sx ^= sy;
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}
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e = 2 * dy - dx;
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for (i = 0; i < dx; i++)
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{
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if (steep)
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{
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rptr = rgb + (((x1 * WIDTH) + y1) * 4);
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}
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else
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{
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rptr = rgb + (((y1 * WIDTH) + x1) * 4);
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}
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rptr[0] = clr[0];
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rptr[1] = clr[1];
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rptr[2] = clr[2];
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while (e >= 0)
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{
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y1 += sy;
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e -= 2 * dx;
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}
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x1 += sx;
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e += 2 * dy;
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}
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rptr = rgb + (((y2 * WIDTH) + x2) * 4);
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rptr[0] = clr[0];
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rptr[1] = clr[1];
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rptr[2] = clr[2];
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}
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static void
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draw_graph(void)
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{
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unsigned char *rgb, *rptr;
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int i, j, x, y, y1;
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rgb = Epplet_get_rgb_pointer(buf);
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for (y = 0; y < HEIGHT; y++)
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{
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rptr = rgb + (y * WIDTH * 4);
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for (x = 0; x < WIDTH; x++)
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{
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rptr[0] = colors[color][0][0];
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rptr[1] = colors[color][0][1];
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rptr[2] = colors[color][0][2];
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rptr += 4;
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}
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}
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draw_line(rgb, 0, 6, WIDTH - 1, 6, &colors[color][1][0]);
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draw_line(rgb, 0, 14, WIDTH - 1, 14, &colors[color][1][0]);
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draw_line(rgb, 0, 22, WIDTH - 1, 22, &colors[color][1][0]);
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draw_line(rgb, 9, 0, 9, HEIGHT - 1, &colors[color][1][0]);
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draw_line(rgb, 19, 0, 19, HEIGHT - 1, &colors[color][1][0]);
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draw_line(rgb, 29, 0, 29, HEIGHT - 1, &colors[color][1][0]);
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j = ((hist_pos + 1) % WIDTH);
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y = HEIGHT - ((HEIGHT * cpu_hist[j]) / 100);
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for (i = 0; i < WIDTH - 1; i++)
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{
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j++;
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j %= WIDTH;
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y1 = HEIGHT - ((HEIGHT * cpu_hist[j]) / 100);
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if (y1 >= HEIGHT)
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y1 = HEIGHT - 1;
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if (y1 < 0)
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y1 = 0;
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draw_line(rgb, i, y, i + 1, y1, &colors[color][2][0]);
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y = y1;
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}
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}
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static void
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cb_timer(void *data __UNUSED__)
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{
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FILE *fpStat;
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int percent;
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double sigstr;
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char s[256], ss[64];
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unsigned long l0;
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fpStat = fopen("/proc/net/wireless", "r");
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if (fpStat)
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{
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fgets(s, sizeof(s), fpStat);
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fgets(s, sizeof(s), fpStat);
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fgets(s, sizeof(s), fpStat);
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sscanf(s, "%*s %*s %s %*s %*s %*s %*s %*s", ss);
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sigstr = atof(ss);
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l0 = sigstr;
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percent = (100 * l0 / 92);
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if (percent > 100)
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percent = 100;
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cpu_hist[hist_pos] = percent;
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sprintf(ss, "%d%%", percent);
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Epplet_change_label(lbl_usage, ss);
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fclose(fpStat);
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draw_graph();
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hist_pos++;
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hist_pos %= WIDTH;
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Epplet_paste_buf(buf, win, 0, 0);
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Epplet_timer(cb_timer, NULL, 1, "TIMER");
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}
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}
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static void
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cb_in(void *data __UNUSED__, Window w __UNUSED__)
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{
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Epplet_gadget_show(btn_close);
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Epplet_gadget_show(btn_config);
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Epplet_gadget_show(btn_about);
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}
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static void
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cb_out(void *data __UNUSED__, Window w __UNUSED__)
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{
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Epplet_gadget_hide(btn_close);
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Epplet_gadget_hide(btn_config);
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Epplet_gadget_hide(btn_about);
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}
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static void
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cb_close(void *data __UNUSED__)
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{
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Epplet_unremember();
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Esync();
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free(cpu_hist);
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exit(0);
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}
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static void
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cb_about(void *data __UNUSED__)
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{
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Epplet_show_about("E-Wireless");
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}
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static void
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cb_config(void *data __UNUSED__)
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{
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Epplet_gadget_show(popup);
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}
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static void
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cb_color(void *data)
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{
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char s[2] = { 0, 0 };
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color = (int)(long)data;
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s[0] = '0' + color;
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Epplet_modify_config("color", s);
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Epplet_save_config();
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Epplet_gadget_hide(popup);
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}
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int
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main(int argc, char *argv[])
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{
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const char *ptr;
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char s[64];
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Epplet_gadget p;
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Epplet_adjust_priority(10);
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atexit(Epplet_cleanup);
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cpu_hist_size = WIDTH;
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cpu_hist = (int *)malloc(sizeof(int) * cpu_hist_size);
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memset(cpu_hist, 0x00, sizeof(int) * cpu_hist_size);
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hist_pos = 0;
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Epplet_Init("E-Wireless", "0.1", "E 802.11 signal monitoring epplet",
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3, 3, argc, argv, 0);
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Epplet_load_config();
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Epplet_timer(cb_timer, NULL, 1, "TIMER");
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Epplet_gadget_show(da =
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Epplet_create_drawingarea(2, 2, WIDTH + 4, HEIGHT + 4));
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win = Epplet_get_drawingarea_window(da);
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buf = Epplet_make_rgb_buf(WIDTH, HEIGHT);
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btn_close = Epplet_create_button(NULL, NULL, 0, 0, 0, 0, "CLOSE", win, NULL,
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cb_close, NULL);
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btn_config =
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Epplet_create_button(NULL, NULL, 28, 0, 0, 0, "CONFIGURE", win, NULL,
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cb_config, NULL);
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btn_about =
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Epplet_create_button(NULL, NULL, 14, 0, 0, 0, "HELP", win, NULL, cb_about,
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NULL);
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sprintf(s, "Signal:");
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Epplet_gadget_show(lbl_cpu = Epplet_create_label(2, 36, s, 1));
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Epplet_gadget_show(lbl_usage = Epplet_create_label(-3, 36, "0%", 1));
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p = Epplet_create_popup();
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Epplet_add_popup_entry(p, "Green", NULL, cb_color, (void *)0L);
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Epplet_add_popup_entry(p, "Blue", NULL, cb_color, (void *)1L);
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Epplet_add_popup_entry(p, "Red", NULL, cb_color, (void *)2L);
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Epplet_add_popup_entry(p, "Yellow", NULL, cb_color, (void *)3L);
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Epplet_add_popup_entry(p, "Cyan", NULL, cb_color, (void *)4L);
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Epplet_add_popup_entry(p, "Magenta", NULL, cb_color, (void *)5L);
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Epplet_add_popup_entry(p, "Gray", NULL, cb_color, (void *)6L);
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popup = Epplet_create_popupbutton("Colors", NULL, 6, 24, 36, 12, NULL, p);
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Epplet_register_focus_in_handler(cb_in, NULL);
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Epplet_register_focus_out_handler(cb_out, NULL);
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ptr = Epplet_query_config_def("color", "0");
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color = *ptr - '0';
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Epplet_show();
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Epplet_Loop();
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return (0);
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}
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