freebsd-dev/contrib/ncurses/c++/cursesapp.cc

// * this is for making emacs happy: -*-Mode: C++;-*-
/****************************************************************************
 * Copyright (c) 1998,1999 Free Software Foundation, Inc.                   *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * in all copies or substantial portions of the Software.                   *
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 ****************************************************************************/

/****************************************************************************
 *   Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1997                 *
 ****************************************************************************/

#include "cursesapp.h"
#include "internal.h"

MODULE_ID("$Id: cursesapp.cc,v 1.6 1999/10/30 23:59:37 tom Exp $")

void
NCursesApplication::init(bool bColors) {
  if (bColors)
    NCursesWindow::useColors();
  
  if (Root_Window->colors() > 1) {    
    b_Colors = TRUE;
    Root_Window->setcolor(1);
    Root_Window->setpalette(COLOR_YELLOW,COLOR_BLUE);
    Root_Window->setcolor(2);
    Root_Window->setpalette(COLOR_CYAN,COLOR_BLUE);
    Root_Window->setcolor(3);
    Root_Window->setpalette(COLOR_BLACK,COLOR_BLUE);
    Root_Window->setcolor(4);
    Root_Window->setpalette(COLOR_BLACK,COLOR_CYAN);
    Root_Window->setcolor(5);
    Root_Window->setpalette(COLOR_BLUE,COLOR_YELLOW);
    Root_Window->setcolor(6);
    Root_Window->setpalette(COLOR_BLACK,COLOR_GREEN);
  }
  else
    b_Colors = FALSE;

  Root_Window->bkgd(' '|window_backgrounds());
}

NCursesApplication* NCursesApplication::theApp = 0;
NCursesWindow* NCursesApplication::titleWindow = 0;
NCursesApplication::SLK_Link* NCursesApplication::slk_stack = 0;

NCursesApplication::~NCursesApplication() {
  Soft_Label_Key_Set* S;

  delete titleWindow;
  while( (S=top()) ) {
    pop();
    delete S;
  }
  delete Root_Window;
  ::endwin();
}

int NCursesApplication::rinit(NCursesWindow& w) {
  titleWindow = &w;
  return OK;
}

void NCursesApplication::push(Soft_Label_Key_Set& S) {
  SLK_Link* L = new SLK_Link;
  assert(L != 0);
  L->prev = slk_stack;
  L->SLKs = &S;
  slk_stack = L;
  if (Root_Window)
    S.show();
}

bool NCursesApplication::pop() {
  if (slk_stack) {
    SLK_Link* L = slk_stack;
    slk_stack = slk_stack->prev;
    delete L;
    if (Root_Window && top())
      top()->show();
  }
  return (slk_stack ? FALSE : TRUE);
}

Soft_Label_Key_Set* NCursesApplication::top() const {
  if (slk_stack)
    return slk_stack->SLKs;
  else
    return (Soft_Label_Key_Set*)0;
}

int NCursesApplication::operator()(void) {
  bool bColors = b_Colors;
  Soft_Label_Key_Set* S;

  int ts = titlesize();
  if (ts>0)
    NCursesWindow::ripoffline(ts,rinit);
  Soft_Label_Key_Set::Label_Layout fmt = useSLKs();
  if (fmt!=Soft_Label_Key_Set::None) {    
    S = new Soft_Label_Key_Set(fmt);
    assert(S != 0);
    init_labels(*S);
  }

  Root_Window = new NCursesWindow(::stdscr);
  init(bColors);

  if (ts>0)
    title();
  if (fmt!=Soft_Label_Key_Set::None) {
    push(*S);
  }

  return run();
}

NCursesApplication::NCursesApplication(bool bColors) {
  b_Colors = bColors;
  if (theApp)
    THROW(new NCursesException("Application object already created."));
  else
    theApp = this;
}