pytx/txops.c

   1 #include <ncurses.h>
   2 #include <assert.h>
   3 #include <signal.h>
   4 #include <sys/ioctl.h>
   5 #include <stdlib.h>
   6 #include <string.h>
   7 #include <signal.h>
   8 #include <assert.h>
   9 #include <sys/ioctl.h>
  10 #include "txops.h"
  11 #include "txlist.h"
  12
  13 char *tx_text_blank(char *t, int w) {
  14   char *b;
  15
  16   b = malloc(sizeof(char) * w);
  17   assert(b);
  18
  19   memset(b, ' ', w);
  20   if (t) memcpy(b, t, MIN(strlen(t), w));
  21   b[w-1] = 0;
  22   return b;
  23 }
  24
  25 void tx_box(WINDOW *win) {
  26   int winwidth;
  27   int winheight;
  28
  29   scrollok(win, 0);
  30
  31   getmaxyx(win, winheight, winwidth);
  32   winheight--;
  33   winwidth--;
  34
  35   mvwaddch(win, 0, 0, ACS_ULCORNER);
  36   mvwaddch(win, winheight, 0, ACS_LLCORNER);
  37   mvwaddch(win, 0, winwidth, ACS_URCORNER);
  38   mvwaddch(win, winheight, winwidth, ACS_LRCORNER);
  39
  40   mvwhline(win, 0, 1, ACS_HLINE, winwidth - 1);
  41   mvwhline(win, winheight, 1, ACS_HLINE, winwidth - 1);
  42   mvwvline(win, 1, 0, ACS_VLINE, winheight - 1);
  43   mvwvline(win, 1, winwidth, ACS_VLINE, winheight - 1);
  44   doupdate();
  45 }
  46
  47 void tx_ungetc(int c) {
  48   ungetch(c);
  49 }
  50
  51 void tx_resize(void) {
  52   struct winsize ws;
  53   int r;
  54   r = ioctl(0, TIOCGWINSZ, &ws);
  55   assert(r != -1);
  56
  57   r = resizeterm(ws.ws_row, ws.ws_col);
  58   assert(r != -1);
  59 }
  60
  61 void signals(int sig) {
  62   switch (sig) {
  63     case SIGWINCH: tx_resize(); break;
  64   }
  65 }
  66
  67 void tx_init(void) {
  68   initscr();
  69   cbreak();
  70   noecho();
  71   nonl();
  72   keypad(stdscr, 1);
  73   curs_set(0);
  74   clear();
  75   signal(SIGWINCH, signals);
  76   //signal(SIGINT, sighandler);
  77
  78   /* set to globals to NULL */
  79   tx_obj_root = NULL;
  80   tx_obj_focus = NULL;
  81 }
  82
  83 void tx_free(void) {
  84   endwin();
  85 }
  86
  87 void tx_stdwinset(WINDOW * win) {
  88   meta(win, TRUE);
  89   keypad(win, TRUE);
  90   notimeout(win, 0);
  91   scrollok(win, 1);
  92 }
  93
  94 void tx_refresh_screen(void) {
  95   endwin();
  96   doupdate();
  97   curs_set(0);
  98 }