src/org/apache/fop/image/BmpBwImage.java

/* modified by JKT to integrate into 0.12.0 */

//Title:        BoBoGi FOP
//Version:      
//Copyright:    Copyright (c) 1999
//Author:       Sergio Botti
//Company:      Dibe Elsag
//Description:  xml to pdf converter

package org.apache.xml.fop.image;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.PrintWriter;

public class BmpBwImage implements FopImage {
    int X;
    int Y;
    int width;
    int height;
    int pixelwidth;
    int pixelheight;
    String ref;
    boolean color;
    int bitperpixel;
    int[] imagemap;
    int imagestart;
    /*
      Costructor read the header of the bmp file to get the size
      and the other data
      SB
    */
    public BmpBwImage(String href,int x,int y,int w,int h)
    {
	this.ref=href;
	this.X=x;
	this.Y=y;
	
	int wpos=18;
	int hpos=22; //offset positioning for w and height in  bmp files
	int [] headermap = new int[54];
	try{
	    FileInputStream file=new FileInputStream(ref);
	    boolean eof=false;
	    int count=0;
	    while ((!eof) && (count<54) ) {
		int input =file.read();
		if (input==-1)
		    eof=true;
		else
		    headermap[count++]=input;
	    }
	    file.close();
	}catch (IOException e) {System.err.println("Image not found");}
	// gets h & w from headermap
	this.pixelwidth = headermap[wpos]+headermap[wpos+1]*256+headermap[wpos+2]*256*256+headermap[wpos+3]*256*256*256;
	this.pixelheight = headermap[hpos]+headermap[hpos+1]*256+headermap[hpos+2]*256*256+headermap[hpos+3]*256*256*256;
	if (w==0)
	    this.width=this.pixelwidth*1000;
	else
	    this.width=w;
	if (h==0)
	    this.height=this.pixelheight*1000;
	else
	    this.height=h;
	
	this.imagestart =headermap[10]+headermap[11]*256+headermap[12]*256*256+headermap[13]*256*256*256;
	this.bitperpixel=headermap[28];
    }
    
    public String gethref() {		return this.ref;	}
    public int getWidth() {		return this.width;	}
    public int getHeight() {		return this.height;	}
    public int getpixelwidth() {	return this.pixelwidth;	}
    public int getpixelheight() { return this.pixelheight; }
    public int getX(){ return this.X; }
    public int getY(){ return this.Y; }

    public int[] getimagemap(){
	int input;
	int[] temp = new int[nextfourdiv(this.pixelwidth)*(this.pixelheight)];
	try {
	    FileInputStream file = new FileInputStream(this.ref);
	    int count = 0;
	    file.skip((long) this.imagestart);
	    while ((input = file.read()) != -1) {
		temp[count++] = input;
	    }
	    file.close();
	} catch (IOException e) {
	    System.err.println("Image not found");
	}
	int[] map = new int[this.pixelheight * this.pixelwidth];
	int k = 0;
	for (int y = 0; y < this.pixelheight; y++) {
	    for (int x = 0; x < this.pixelwidth; x++)
		map[k++] = temp[y * nextfourdiv(this.pixelwidth) + x];
	}
	return map;
    }

    public boolean getcolor(){return false;}
    public int getbitperpixel() {return this.bitperpixel;} 
    
    private int nextfourdiv(int number) {
	return ((number/4)+1)*4;
    }
    
}