libs-gui/Source/GSTrackingRect.m
Richard Frith-MacDonald 80cb0f7b81 Optimisation of handling of mouse movement.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@4221 72102866-910b-0410-8b05-ffd578937521
1999-05-07 11:06:37 +00:00

146 lines
2.8 KiB
Objective-C

/*
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