#include "owl.h"

int owl_popwin_init(owl_popwin *pw)
{
  pw->active=0;
  pw->lines=0;
  pw->cols=0;
  return(0);
}

int owl_popwin_up(owl_popwin *pw)
{
  /* make them zero-size for now */
  pw->border = owl_window_new(0, 0, 0, 0, 0);
  pw->content = owl_window_new(pw->border, 0, 0, 0, 0);

  owl_window_set_redraw_cb(pw->border, owl_popwin_draw_border, pw, 0);
  owl_window_set_resize_cb(pw->border, owl_popwin_resize_content, pw, 0);
  /* HACK */
  owl_window_set_resize_cb(owl_window_get_screen(), owl_popwin_reposition, pw, 0);

  /* calculate position, THEN map the windows maybe setting a resize hook
   * should just cause it to get called? */
  owl_popwin_reposition(owl_window_get_screen(), pw);
  owl_window_map(pw->border, 1);

  pw->active=1;
  return(0);
}

void owl_popwin_reposition(owl_window *screen, void *user_data)
{
  owl_popwin *pw = user_data;
  int lines, cols, startline, startcol;
  int glines, gcols;

  owl_window_get_position(screen, &glines, &gcols, 0, 0);

  lines = owl_util_min(glines,24)*3/4 + owl_util_max(glines-24,0)/2;
  startline = (glines-lines)/2;
  cols = owl_util_min(gcols,90)*15/16 + owl_util_max(gcols-90,0)/2;
  startcol = (gcols-cols)/2;

  owl_window_set_position(pw->border, lines, cols, startline, startcol);
}

void owl_popwin_resize_content(owl_window *w, void *user_data)
{
  owl_popwin *pw = user_data;
  owl_window_get_position(w, &pw->lines, &pw->cols, 0, 0);
  owl_window_set_position(pw->content, pw->lines-2, pw->cols-2, 1, 1);
}

void owl_popwin_draw_border(owl_window *w, WINDOW *borderwin, void *user_data)
{
  int lines, cols;
  owl_window_get_position(w, &lines, &cols, 0, 0);
  if (owl_global_is_fancylines(&g)) {
    box(borderwin, 0, 0);
  } else {
    box(borderwin, '|', '-');
    wmove(borderwin, 0, 0);
    waddch(borderwin, '+');
    wmove(borderwin, lines-1, 0);
    waddch(borderwin, '+');
    wmove(borderwin, lines-1, cols-1);
    waddch(borderwin, '+');
    wmove(borderwin, 0, cols-1);
    waddch(borderwin, '+');
  }
}

int owl_popwin_close(owl_popwin *pw)
{
  owl_window_delete(pw->border);
  pw->border = 0;
  pw->content = 0;
  pw->active=0;
  owl_window_set_resize_cb(owl_window_get_screen(), 0, 0, 0);
  return(0);
}

int owl_popwin_is_active(const owl_popwin *pw)
{
  return pw->active;
}

owl_window *owl_popwin_get_content(const owl_popwin *pw)
{
  return pw->content;
}

int owl_popwin_get_lines(const owl_popwin *pw)
{
  return(pw->lines-2);
}

int owl_popwin_get_cols(const owl_popwin *pw)
{
  return(pw->cols-2);
}