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//
// PRCBriCon.m
// PRICE
//
// Created by Riccardo Mottola on Thu Mar 3 2005.
// Copyright (c) 2005-2010 Carduus. All rights reserved.
//
// This application 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.
// for values > 1
// the minimum is from 126 to 127: 1.008
// 125 to 127: 1.015
// the maximum is from 1 to 127: 127
#include <stdlib.h>
#import "PRCBriCon.h"
#import "PRBriCon.h"
#import "MyDocument.h"
#include <limits.h>
#define HALF_CHAR (UCHAR_MAX >> 1)
@implementation PRCBriCon
- (id)init
{
if ((self = [super init]))
{
filter = [[PRBriCon alloc] init];
}
return self;
}
- (IBAction)showFilter:(id)sender
{
[super showFilter:sender];
if (!briconWindow)
[NSBundle loadNibNamed:@"BriCon" owner:self];
[briconWindow makeKeyAndOrderFront:nil];
[self parametersChanged:self];
}
- (NSArray *)encodeParameters
{
NSArray *parameters;
float contrast;
int level;
level = [conVal intValue];
contrast = 1 + (float)abs(level)/HALF_CHAR;
if (level < 0)
contrast = 1 / contrast;
/* encode parameters */
parameters = [NSArray arrayWithObjects:
[NSNumber numberWithInt:[briVal intValue]],
[NSNumber numberWithFloat:contrast],
nil];
return parameters;
}
- (void)closeFilterPanel
{
[briconWindow performClose:nil];
}
- (IBAction)briconReset:(id)sender
{
[briSlider setIntValue:0];
[briStep setIntValue:0];
[briVal setIntValue:0];
[conSlider setFloatValue:0.0];
[conStep setFloatValue:0.0];
[conVal setFloatValue:0.0];
[self parametersChanged:sender];
}
- (IBAction)changeBri:(id)sender
{
if (sender == briVal)
{
int tempVal;
tempVal = [sender intValue];
if (tempVal > 255)
{
tempVal = 255;
[briVal setIntValue:tempVal];
} else if (tempVal < -255)
{
tempVal = -255;
[briVal setIntValue:tempVal];
}
[briSlider setIntValue:tempVal];
[briStep setIntValue:tempVal];
} else if (sender == briStep)
{
[briSlider setIntValue:[sender intValue]];
[briVal setIntValue:[sender intValue]];
} else if (sender == briSlider)
{
[briVal setIntValue:[sender intValue]];
[briStep setIntValue:[sender intValue]];
} else
NSLog(@"undexpected sender value in changeBri");
[self parametersChanged:sender];
}
- (IBAction)changeCon:(id)sender
{
if (sender == conVal)
{
int tempVal;
tempVal = [sender intValue];
if (tempVal > 127)
{
tempVal = 127;
[briVal setIntValue:tempVal];
} else if (tempVal < -127)
{
tempVal = -127;
[briVal setIntValue:tempVal];
}
[conSlider setIntValue:tempVal];
[conStep setIntValue:tempVal];
} else if (sender == conStep)
{
[conSlider setIntValue:[sender intValue]];
[conVal setIntValue:[sender intValue]];
} else if (sender == conSlider)
{
[conVal setIntValue:[sender intValue]];
[conStep setIntValue:[sender intValue]];
} else
NSLog(@"undexpected sender value in changeCon");
[self parametersChanged:sender];
}
@end
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