positionfilter.java

Sony Ericsson手机上的Facebook客户端全套代码

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) 
// Source File Name:   PositionFilter.java

package se.southend.drops.pixelfilter;

import javax.microedition.lcdui.Graphics;
import javax.microedition.lcdui.Image;

// Referenced classes of package se.southend.drops.pixelfilter:
//            Filter, RGBTools

public class PositionFilter
    implements Filter
{

    public PositionFilter()
    {
    }

    public PositionFilter(Image fromImage)
    {
        setImage(fromImage);
    }

    public void setImage(Image fromImage)
    {
        if(fromImage == null)
        {
            return;
        } else
        {
            width = fromImage.getWidth() + 1;
            height = fromImage.getHeight() + 1;
            int fromRGB[] = new int[width * height];
            fromImage.getRGB(fromRGB, 0, width, 0, 0, width - 1, height - 1);
            setRGB(fromRGB, width, height);
            return;
        }
    }

    public void setRGB(int fromRGB[], int width, int height)
    {
        this.fromRGB = fromRGB;
        this.width = width;
        this.height = height;
        rgb = new int[fromRGB.length];
        needsRender = true;
    }

    public Image getImage()
    {
        return Image.createRGBImage(getRGB(), getWidth(), getHeight(), true);
    }

    public int[] getRGB()
    {
        return rgb;
    }

    public int getWidth()
    {
        return width;
    }

    public int getHeight()
    {
        return height;
    }

    public void setPosition(int xDecimal, int yDecimal)
    {
        if(xDecimal == this.xDecimal && yDecimal == this.yDecimal)
        {
            return;
        } else
        {
            this.xDecimal = xDecimal;
            this.yDecimal = yDecimal;
            needsRender = true;
            return;
        }
    }

    public void render()
    {
        if(!needsRender)
        {
            return;
        } else
        {
            rgb = position(fromRGB, rgb, width, height, xDecimal, yDecimal);
            needsRender = false;
            return;
        }
    }

    public void paintAt(Graphics graphics, int x, int y)
    {
        render();
        graphics.drawRGB(rgb, 0, width, x, y, width, height, true);
    }

    public static final int[] position(int src[], int dest[], int width, int height, int xDecimal, int yDecimal)
    {
        if(yDecimal != 0)
        {
            for(int x = 0; x < width; x++)
                dest[x] = RGBTools.blendARGB(src[x], src[x] & 0xffffff, yDecimal);

            for(int y = 1; y < height - 1; y++)
            {
                int y_width = y * width;
                for(int x = 0; x < width; x++)
                    dest[x + y_width] = RGBTools.blendARGB(src[x + y_width], src[(x + y_width) - width], yDecimal);

            }

            int height_1_width = (height - 1) * width;
            for(int x = 0; x < width; x++)
                dest[height_1_width + x] = RGBTools.blendARGB(src[(height_1_width - width) + x] & 0xffffff, src[(height_1_width - width) + x], yDecimal);

        } else
        {
            int rgbLength = src.length;
            for(int i = 0; i < rgbLength; i++)
                dest[i] = src[i];

        }
        if(xDecimal != 0)
        {
            int prev = 0;
            int curr = 0;
            for(int y = 0; y < height; y++)
            {
                int y_width = y * width;
                curr = dest[y_width];
                dest[y_width] = RGBTools.blendARGB(dest[y_width], dest[y_width] & 0xffffff, xDecimal);
                for(int x = 1; x < width - 1; x++)
                {
                    prev = curr;
                    curr = dest[x + y_width];
                    dest[x + y_width] = RGBTools.blendARGB(dest[x + y_width], prev, xDecimal);
                }

                dest[(y_width + width) - 1] = RGBTools.blendARGB(curr & 0xffffff, curr, xDecimal);
            }

        }
        return dest;
    }

    protected int fromRGB[];
    protected int rgb[];
    protected int width;
    protected int height;
    protected int xDecimal;
    protected int yDecimal;
    private boolean needsRender;
}