paintable.cpp

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#ifndef PAINTABLE_IMPLEMENTATION_FILE
#define PAINTABLE_IMPLEMENTATION_FILE

/*****************************************************************************\
*                                                                             *
*  Name   : paintable                                                         *
*  Author : Chris Koeritz                                                     *
*                                                                             *
*******************************************************************************
* Copyright (c) 1991-$now By Author.  This program is free software; you can  *
* redistribute it and/or modify it under the terms of the GNU General Public  *
* License as published by the Free Software Foundation; either version 2 of   *
* the License or (at your option) any later version.  This is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/

#include "canvas.h"
#include "paintable.h"
#include "wp_implementation.h"

#include <basis/guards.h>

paintable::paintable(canvas &to_draw_on, const c_point &origin,
    const color &fgnd, bool attach)
: drawable(origin, fgnd), _filled(false), _attach(attach),
  _canvas(to_draw_on)
{ foreground(fgnd); }

paintable::~paintable() { 
// erase();   // causes weird abort on non-pointer paintables!
}

canvas &paintable::target() const { return _canvas; }

void paintable::set_filled(bool filled_now) { _filled = filled_now; }

bool paintable::filled() const { return _filled; }

color paintable::foreground() const { return drawable::foreground(); }

void paintable::draw()
{
  plot(_foreground);
  if (!visible()) {
    if (_attach) attach();
    set_visible();
  }
}

void paintable::erase()
{
  color b = _canvas.background();
  plot(b);
  if (visible()) {
    set_invisible();
    if (_attach) detach();
  }
}

void paintable::attach()
{
/*
  for (int i = 0; i < _canvas.elements(); i++)
    if (_canvas.contents.get(i) == this) {
LOG("paintable::attach: adding worker again!");
      return;
    }
*/
  _canvas.add(this);
}

void paintable::detach() { _canvas.remove(this); }

void paintable::foreground(const color &new_foreground)
{
  color fg(new_foreground);
  _canvas.colormap().add(fg);
  drawable::foreground(fg);
}

void paintable::set_origin(const c_point &new_origin)
{
  bool was_visible(visible());
  if (was_visible) erase();
  drawable::set_origin(new_origin);
  if (was_visible) draw();
}


#endif //PAINTABLE_IMPLEMENTATION_FILE

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