Yesno_gump.cc

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/*
Copyright (C) 2000-2002 The Exult Team

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 program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

#ifdef HAVE_CONFIG_H
#  include <config.h>
#endif

#include "SDL_events.h"

#include "Yesno_gump.h"
#include "gamewin.h"
#include "mouse.h"
#include "game.h"
#include "Gump_button.h"
#include "Gump_manager.h"

/*
 *  Statics:
 */

short Yesno_gump::yesx = 63;
short Yesno_gump::yesnoy = 45;
short Yesno_gump::nox = 84;


/*
 *  A 'yes' or 'no' button.
 */

class Yesno_button : public Gump_button
{
  int isyes;      // 1 for 'yes', 0 for 'no'.
public:
  Yesno_button(Gump *par, int px, int py, int yes)
    : Gump_button(par, yes ? 
      game->get_shape("gumps/yesbtn") 
      : game->get_shape("gumps/nobtn"), px, py),
      isyes(yes)
    {  }
          // What to do when 'clicked':
  virtual void activate();
};


/*
 *  Handle 'yes' or 'no' button.
 */

void Yesno_button::activate
  (
  )
{
  ((Yesno_gump *) parent)->set_answer(isyes);
}


/*
 *  Create a yes/no box.
 */

Yesno_gump::Yesno_gump
  (
  const std::string &txt
  ) : Modal_gump(0, game->get_shape("gumps/yesnobox")), text(txt), answer(-1)
{
  set_object_area(Rectangle(6, 6, 116, 30));
  yes_button = new Yesno_button(this, yesx, yesnoy, 1);
  no_button = new Yesno_button(this, nox, yesnoy, 0);
}

/*
 *  Done with yes/no box.
 */

Yesno_gump::~Yesno_gump
  (
  )
{
  delete yes_button;
  delete no_button;
}

/*
 *  Paint on screen.
 */

void Yesno_gump::paint
  (
  )
{
          // Paint the gump itself.
  paint_shape(x, y);
          // Paint buttons.
  yes_button->paint();
  no_button->paint();
          // Paint text.
  sman->paint_text_box(2, text.c_str(), x + object_area.x, 
      y + object_area.y, object_area.w, object_area.h, 2);
  gwin->set_painted();
}

/*
 *  Handle mouse-down events.
 */

void Yesno_gump::mouse_down
  (
  int mx, int my      // Position in window.
  )
{
          // Check buttons.
  if (yes_button->on_button(mx, my))
    pushed = yes_button;
  else if (no_button->on_button(mx, my))
    pushed = no_button;
  else
  {
    pushed = 0;
    return;
  }
  pushed->push();   // Show it.
}

/*
 *  Handle mouse-up events.
 */

void Yesno_gump::mouse_up
  (
  int mx, int my      // Position in window.
  )
{
  if (pushed)     // Pushing a button?
  {
    pushed->unpush();
    if (pushed->on_button(mx, my))
      pushed->activate();
    pushed = 0;
  }
}

/*
 *  Handle ASCII character typed.
 */

void Yesno_gump::key_down(int chr)
{
  if (chr == 'y' || chr == 'Y' || chr == SDLK_RETURN)
    set_answer(1);
  else if (chr == 'n' || chr == 'N' || chr == SDLK_ESCAPE)
    set_answer(0);
}

/*
 *  Get an answer to a question.
 *
 *  Output: 1 if yes, 0 if no or ESC.
 */

int Yesno_gump::ask
  (
  const char *txt     // What to ask.
  )
{
  Yesno_gump *dlg = new Yesno_gump(txt);
  int answer;
  if (!gumpman->do_modal_gump(dlg, Mouse::hand))
    answer = 0;
  else
    answer = dlg->get_answer();
  delete dlg;
  return (answer);
}

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