libs-gui/Source/GSTrackingRect.m

/* 
   GSTrackingRect.m

   Tracking rectangle class

   Copyright (C) 1996 Free Software Foundation, Inc.

   Author:  Scott Christley <scottc@net-community.com>
   Date: 1996
   
   This file is part of the GNUstep GUI Library.

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
   
   This library 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with this library; see the file COPYING.LIB.
   If not, write to the Free Software Foundation,
   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/ 

#include <gnustep/gui/config.h>
#include <gnustep/gui/GSTrackingRect.h>

@implementation GSTrackingRect

//
// Class methods
//
+ (void) initialize
{
  if (self == [GSTrackingRect class])
    {
      [self setVersion: 1];
    }
}

//
// Instance methods
//
//
// Initialization
//
- initWithRect: (NSRect)aRect
	   tag: (NSTrackingRectTag)aTag
	 owner: anObject
      userData: (void *)theData
        inside: (BOOL)flag
{
  rectangle = aRect;
  tag = aTag;
  owner = anObject;
  if (owner)
    {
      [owner retain];
      if ([owner respondsToSelector: @selector(mouseEntered:)])
	ownerRespondsToMouseEntered = YES;
      if ([owner respondsToSelector: @selector(mouseExited:)])
	ownerRespondsToMouseExited = YES;
    }
  user_data = theData;
  inside = flag;
  isValid = YES;
  return self;
}

- (void) dealloc
{
  if (owner)
    [owner release];
  [super dealloc];
}

- (NSRect) rectangle
{
  return rectangle;
}

- (NSTrackingRectTag) tag
{
  return tag;
}

- owner
{
  return owner;
}

- (void *) userData
{
  return user_data;
}

- (BOOL) inside
{
  return inside;
}

- (BOOL) isValid
{
  return isValid;
}

- (void) invalidate
{
  if (isValid)
    {
      isValid = NO;
      if (owner)
	{
	  [owner release];
	  owner = nil;
	  ownerRespondsToMouseEntered = NO;
	  ownerRespondsToMouseExited = NO;
	}
    }
}

//
// NSCoding protocol
//
- (void) encodeWithCoder: (NSCoder*)aCoder
{
  [aCoder encodeRect: rectangle];
  [aCoder encodeValueOfObjCType: @encode(NSTrackingRectTag) at: &tag];
  [aCoder encodeObject: owner];
  [aCoder encodeValueOfObjCType: @encode(BOOL) at: &inside];
}

- (id) initWithCoder: (NSCoder*)aDecoder
{
  rectangle = [aDecoder decodeRect];
  [aDecoder decodeValueOfObjCType: @encode(NSTrackingRectTag) at: &tag];
  [aDecoder decodeValueOfObjCType: @encode(id) at: &owner];
  [aDecoder decodeValueOfObjCType: @encode(BOOL) at: &inside];
  return self;
}

@end