mouse.cpp

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#ifndef MOUSE_IMPLEMENTATION_FILE
#define MOUSE_IMPLEMENTATION_FILE

/*****************************************************************************\
*                                                                             *
*  Name   : mouse                                                             *
*  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 "mouse.h"

#include <wp_passive/canvas.h>
#include <wp_passive/wp_implementation.h>

mouse::mouse(nub &connect_to) : _connection(connect_to)
{
  XtAddEventHandler
    (connect_to.self(), ButtonPressMask, false,
     XtEventHandler(mouse_callback), XtPointer(this));
  XtAddEventHandler
    (connect_to.self(), ButtonReleaseMask, false,
     XtEventHandler(mouse_callback), XtPointer(this));
}

mouse::~mouse()
{
  XtRemoveEventHandler
    (_connection.self(), ButtonPressMask, false,
     XtEventHandler(mouse_callback), XtPointer(this));
  XtRemoveEventHandler
    (_connection.self(), ButtonReleaseMask, false,
     XtEventHandler(mouse_callback), XtPointer(this));
}

/*
void mouse::position(c_point new_position)
{
x warp pointer...
}
*/

c_point mouse::position() const
{
  int root_x = 0, root_y = 0, win_x = 0, win_y = 0;
  Window root_win = NIL, child_win = NIL;
  unsigned int mask_returned = 0;

  // if the querypointer routine returns false, some of the results are
  // invalidated below.
  XQueryPointer(_connection.display(), _connection.window(),
    &root_win, &child_win, &root_x, &root_y, &win_x, &win_y, &mask_returned);
  c_point device_coords(root_x, root_y);
  device_coords -= c_point(_connection.device_dimensions().vertex_1());
  return convert(device_coords);
}

c_point mouse::convert(const c_point &to_convert) const
{
return to_convert;
/*
printf((istring("convert:\nto_convert=") + to_convert.text_form() + "\n").s());
  c_point to_return(to_convert);
  if (_direction == first_to_second)
    return _realm.to_system_2(to_return);
  else
    return _realm.to_system_1(to_return);
*/
}

void mouse::mouse_callback(window_handle, mouse *me, XEvent *parms)
{
  FUNCDEF("mouse_callback");
  int mask = 0;
  switch (parms->xbutton.button) {
  case Button1: mask = Button1Mask; break;
  case Button2: mask = Button2Mask; break;
  case Button3: mask = Button3Mask; break;
  case Button4: mask = Button4Mask; break;
  case Button5: mask = Button5Mask; break;
  default:
    LOG("unknown button pressed");
    break;
  }
//LOG(isprintf("state=%d, mask=%d", parms->xbutton.state, mask));
  mouse::button_positions state
    = (parms->xbutton.state & mask? mouse::down : mouse::up);
//LOG(isprintf(" value masked is --> %d", parms->xbutton.state & mask));
  c_point device_point(parms->xbutton.x, parms->xbutton.y);
  c_point converted(me->convert(device_point));
  LOG(isprintf("button state to return in mouse is: %s",
      (state==mouse::down? "DOWN" : "UP")));
  me->button_event(converted, parms->xbutton.button, state);
}


#endif //MOUSE_IMPLEMENTATION_FILE

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