libs-gui/Source/NSActionCell.m

/* 
   NSActionCell.m

   Abstract cell for target/action paradigm

   Copyright (C) 1996-1999 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 <Foundation/NSCoder.h>
#include <AppKit/NSActionCell.h>
#include <AppKit/NSControl.h>

@implementation NSActionCell

static Class controlClass;

/*
 * Class methods
 */
+ (void) initialize
{
  if (self == [NSActionCell class])
    {
      NSDebugLog(@"Initialize NSActionCell class\n");

      controlClass = [NSControl class];
      [self setVersion: 1];
    }
}

/*
 * Instance methods
 */
- (id) init
{
  [super init];
  _target = nil;
  _action = NULL;
  _tag = 0;
  _control_view = nil;
  return self;
}

- (id) initImageCell: (NSImage*)anImage
{
  [super initImageCell: anImage];
  _target = nil;
  _action = NULL;
  _tag = 0;
  _control_view = nil;
  return self;
}

- (id) initTextCell: (NSString*)aString
{
  [super initTextCell: aString];
  _target = nil;
  _action = NULL;
  _tag = 0;
  _control_view = nil;
  return self;
}

/*
 * Configuring an NSActionCell 
 */
- (void) setAlignment: (NSTextAlignment)mode
{
  _cell.text_align = mode;
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setBezeled: (BOOL)flag
{
  _cell.is_bezeled = flag;
  if (_cell.is_bezeled)
    _cell.is_bordered = NO;
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setBordered: (BOOL)flag
{
  _cell.is_bordered = flag;
  if (_cell.is_bordered)
    _cell.is_bezeled = NO;
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setEnabled: (BOOL)flag
{
  _cell.is_disabled = !flag;
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setFloatingPointFormat: (BOOL)autoRange
			   left: (unsigned int)leftDigits
			  right: (unsigned int)rightDigits
{
  _cell.float_autorange = autoRange;
  _cell_float_left = leftDigits;
  _cell_float_right = rightDigits;
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setFont: (NSFont*)fontObject
{
  [super setFont: fontObject];
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setImage: (NSImage*)image
{
  [super setImage: image];
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

/*
 * Manipulating NSActionCell Values 
 */
- (void) setStringValue: (NSString*)aString
{
  [super setStringValue: aString];
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setDoubleValue: (double)aDouble
{
  [super setDoubleValue: aDouble];
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setFloatValue: (float)aFloat
{
  [super setFloatValue: aFloat];
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

- (void) setIntValue: (int)anInt
{
  [super setIntValue: anInt];
  if (_control_view)
    if ([_control_view isKindOfClass: controlClass])
      [(NSControl *)_control_view updateCell: self];
}

/*
 * Target and Action 
 */
- (SEL) action
{
  return _action;
}

- (void) setAction: (SEL)aSelector
{
  _action = aSelector;
}

/* NSActionCell does not retain its target! */
- (void) setTarget: (id)anObject
{
  _target = anObject;
}

- (id) target
{
  return _target;
}

/*
 * Assigning a Tag 
 */
- (void) setTag: (int)anInt
{
  _tag = anInt;
}

- (int) tag
{
  return _tag;
}

- (id) copyWithZone: (NSZone*)zone
{
  NSActionCell	*c = [super copyWithZone: zone];

  c->_tag = _tag;
  c->_target = _target;
  c->_action = _action;
  c->_control_view = _control_view;

  return c;
}

-(NSView *)controlView
{
  return _control_view;
}


- (void) drawWithFrame: (NSRect)cellFrame inView: (NSView*)controlView
{
  if (_control_view != controlView)
    _control_view = controlView;

  [super drawWithFrame: cellFrame 
	 inView: controlView];
}

/*
 * NSCoding protocol
 */
- (void) encodeWithCoder: (NSCoder*)aCoder
{
  [super encodeWithCoder: aCoder];
  [aCoder encodeValueOfObjCType: @encode(int) at: &_tag];
  [aCoder encodeConditionalObject: _target];
  [aCoder encodeValueOfObjCType: @encode(SEL) at: &_action];
  [aCoder encodeConditionalObject: _control_view];
}

- (id) initWithCoder: (NSCoder*)aDecoder
{
  [super initWithCoder: aDecoder];
  [aDecoder decodeValueOfObjCType: @encode(int) at: &_tag];
  _target = [aDecoder decodeObject];
  [aDecoder decodeValueOfObjCType: @encode(SEL) at: &_action];
  _control_view = [aDecoder decodeObject];
  return self;
}

@end