c++/cursesp.cc

// * this is for making emacs happy: -*-Mode: C++;-*-
/****************************************************************************
 * Copyright 2019,2020 Thomas E. Dickey                                     *
 * Copyright 1998-2003,2005 Free Software Foundation, Inc.                  *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *   Author: Juergen Pfeifer, 1993, 1997                                    *
 ****************************************************************************/

#include "internal.h"
#include "cursesp.h"

MODULE_ID("$Id: cursesp.cc,v 1.27 2020/02/02 23:34:34 tom Exp $")

NCursesPanel* NCursesPanel::dummy = static_cast<NCursesPanel*>(0);

void NCursesPanel::init()
{
  p = ::new_panel(w);
  if (!p)
    OnError(ERR);

  UserHook* hook = new UserHook;
  hook->m_user  = NULL;
  hook->m_back  = this;
  hook->m_owner = p;
  ::set_panel_userptr(p, reinterpret_cast<void *>(hook));
}

NCursesPanel::~NCursesPanel() THROWS(NCursesException)
{
  UserHook* hook = UserPointer();
  assert(hook != 0 && hook->m_back==this && hook->m_owner==p);
  delete hook;
  ::del_panel(p);
  ::update_panels();
}

void
NCursesPanel::redraw()
{
  PANEL *pan;

  pan = ::panel_above(NULL);
  while (pan) {
    ::touchwin(panel_window(pan));
    pan = ::panel_above(pan);
  }
  ::update_panels();
  ::doupdate();
}

int
NCursesPanel::refresh()
{
  ::update_panels();
  return ::doupdate();
}

int
NCursesPanel::noutrefresh()
{
  ::update_panels();
  return OK;
}

void
NCursesPanel::boldframe(const char *title, const char* btitle)
{
  standout();
  frame(title, btitle);
  standend();
}

void
NCursesPanel::frame(const char *title,const char *btitle)
{
  int err = OK;
  if (!title && !btitle) {
    err = box();
  }
  else {
    err = box();
    if (err==OK)
      label(title,btitle);
  }
  OnError(err);
}

void
NCursesPanel::label(const char *tLabel, const char *bLabel)
{
  if (tLabel)
    centertext(0,tLabel);
  if (bLabel)
    centertext(maxy(),bLabel);
}

void
NCursesPanel::centertext(int row,const char *labelText)
{
  if (labelText) {
    int x = (maxx() - ::strlen(labelText)) / 2;
    if (x<0)
      x=0;
    OnError(addstr(row, x, labelText, width()));
  }
}

int
NCursesPanel::getKey(void)
{
  return getch();
}