/*
* HaoRan ImageFilter Classes v0.3
* Copyright (C) 2012 Zhenjun Dai
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; either version 2.1 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation.
*/
package com.marshalchen.common.uimodule.ImageFilter;
public class BlindFilter implements IImageFilter{
boolean _direct;//horizontal: true, vertical: false
int _color;
int _opacity;
int _width;
public BlindFilter(boolean direct, int width, int opacity, int blindColor)
{
_direct = direct ;
_width = (width >= 2) ? width : 2;
_opacity = Function.FClamp (opacity, 1, 100);
_color = blindColor;
};
//@Override
public Image process(Image imageIn) {
int r, g, b, a;
for(int x = 0 ; x < (imageIn.getWidth() - 1) ; x++){
for(int y = 0 ; y < (imageIn.getHeight() - 1) ; y++){
r = imageIn.getRComponent(x, y);
g = imageIn.getGComponent(x, y);
b = imageIn.getBComponent(x, y);
int nMod = 0 ;
if (_direct) // horizontal direction
nMod = y % _width ;
else if (_direct == false) // vertical direction
nMod = x % _width ;
double fDelta = 255.0 * (_opacity/100.0) / (_width-1.0);
a = Function.FClamp0255(nMod * fDelta) ;
int colorR = _color & 0xFF0000 >> 16;
int colorG = _color & 0x00FF00 >> 8;
int colorB = _color & 0x0000FF;
if (_color == 0xFF)
{
imageIn.setPixelColor(x, y, colorR, colorG, colorB);
continue ;
}
if (a == 0)
continue ;
int t = 0xFF - a ;
imageIn.setPixelColor(x, y, (colorR * a + r * t) / 0xFF, (colorG * a + g * t) / 0xFF, (colorB * a + b * t) / 0xFF);
}
}
return imageIn;
}
}