Method Open

Descent3/hudmessage.cpp:1616–1703

registers dimensions of box

// registers dimensions of box
bool MsgListConsole::Open(const char *title, int x, int y, int w, int h) {
  m_x = x;
  m_y = y;
  m_w = w;
  m_h = h;

  if (!m_list)
    return false;

  //	determine text buffer dimensions
  m_buflen = 2048;

redo_copy:
  m_buffer = (char *)mem_malloc(m_buflen);
  if (m_buffer) {
    m_buffer[0] = 0;
    m_opened = true;
  } else {
    m_opened = false;
    return false;
  }

  //	generate text buffer
  int i, len, j;
  char *bufptr = m_buffer;

  for (i = 0; i < m_list->m_nmsg; i++) {
    const char *msg = m_list->m_msg[i];
    if ((strlen(m_buffer) + strlen(msg) + 2) >= (unsigned)(m_buflen)) {
      // reallocate buffer
      mem_free(m_buffer);
      m_buflen = m_buflen * 2;
      goto redo_copy;
    }

    textaux_WordWrap(msg, bufptr, m_w - MSGL_BORDER_THICKNESS * 2, HUD_FONT);
    bufptr += strlen(bufptr);

    // append newline character if there are more messages.
    if (i < (m_list->m_nmsg - 1)) {
      *bufptr = '\n';
      bufptr++;
    }
  }

  // allocate console line pointers
  int c = 0;
  int y2 = grfont_GetHeight(HUD_FONT) + MSGL_BORDER_THICKNESS + 3;
  while (y2 < (m_h - MSGL_BORDER_THICKNESS - grfont_GetHeight(HUD_FONT))) {
    y2 += (grfont_GetHeight(HUD_FONT) + 1);
    c++;
  }

  ASSERT(c > 0);
  m_conlines = (char **)mem_malloc(sizeof(char *) * c);
  n_conlines = c;
  memset(m_conlines, 0, sizeof(char *) * c);