Page.java

/*******************************************************************************
 * Copyright (c) 2014, Pharmed Solutions GmbH
 * All rights reserved.
 *******************************************************************************/

package ch.pharmed.phmprescriber;

import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.awt.geom.Line2D;
import java.awt.image.BufferedImage;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import java.util.Hashtable;
import java.util.Locale;
import java.util.ResourceBundle;

import ch.elexis.data.Artikel;
import ch.elexis.data.Patient;
import ch.elexis.data.Rezept;


class Page implements Printable  
{    
	
  //Fonts
  private static Font fnt = new Font("Helvetica",Font.PLAIN,8); //$NON-NLS-1$
  private static Font fntBold = new Font("Helvetica",Font.BOLD,8); //$NON-NLS-1$
  private static Font fntItalic = new Font("Helvetica",Font.ITALIC,8); //$NON-NLS-1$
  private static Font fntTitle = new Font("Helvetica",Font.BOLD,11); //$NON-NLS-1$
  
  //Message-Constants
  private String PHONE;
  private String FAX;
  
  private String EAN;
  private String ZSR;
  
  private String TITLE;
  private String BORN;
  private String REPETITION;
  
  private static final String PROMO = "https://www.pharmedsolutions.ch"; //$NON-NLS-1$
  
  //Layout-Constants
  private final double LMARGINRATIO = 0.3; 
  private final double SPACERATIO = 1.5;
  
  int Code128Width = 185;
  int Code128Height = 36;
  int QRCodeBorder = 118;
  
  //Objects to print
  private Physician ph;
  private Rezept rp;
  private String presID;
  private String QRCode;
  private Patient pat;
  
  //Barcodes
  private BufferedImage imgQRCode;
  private BufferedImage imgCode128;
  
  //Indices for correctly rendering the page
  private int firstProd = 0;
  private int lastProd = 0;
  
  private ResourceBundle messages;
  
  public Page(Physician ph, Rezept rp, String presID,String QRCode, Integer firstProductIndex, Integer lastProductIndex){
	  
	  this.ph = ph;
	  this.rp = rp;
	  this.pat = rp.getPatient();
	  this.presID = presID;
	  this.QRCode = QRCode;
	  this.firstProd = firstProductIndex;
	  this.lastProd = lastProductIndex;
	  
	  this.messages = ResourceBundle.getBundle("ch.pharmed.phmprescriber.MessagesBundle", new Locale("de", "CH")); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
	  
	  this.PHONE = messages.getString("Page_4");
	  this.FAX = messages.getString("Page_5");
	  
	  this.EAN = messages.getString("Page_6");
	  this.ZSR = messages.getString("Page_7");
	  
	  this.TITLE = messages.getString("Page_8");
	  this.BORN = messages.getString("Page_9");
	  this.REPETITION = messages.getString("Page_10");
	  
	  
  }
  
   
  
  public int print(Graphics g, PageFormat pageFormat, int page)  throws PrinterException  
  {      

		
	    //Define the origin of the printArea
	    double printAreaX = pageFormat.getImageableX();
	    double printAreaY = pageFormat.getImageableY();
	    
	    //Measures the size of strings
	    FontMetrics metrics = g.getFontMetrics(fnt);
	  
	    //Parameters for the layout
	    //Dynamic variable to measure the y-position of each line
	    
	    int intMeasureY = 0;
	    //Others
	    int intMarginLeft = Integer.valueOf((int) Math.round(printAreaX*LMARGINRATIO));
	    int intSpace= Integer.valueOf((int) Math.round(metrics.getHeight()*SPACERATIO));
	    int intDefaultHeight = metrics.getHeight();
	    int intPageWidth = Integer.valueOf((int) Math.round(pageFormat.getImageableWidth()));
	    
	    int pageHeight = Integer.valueOf((int) Math.round(pageFormat.getImageableHeight()));
	    
	    metrics = g.getFontMetrics(fntTitle);
	    int intSpaceBig = metrics.getHeight();
	    
	    //Graphics object to draw lines etc.
	    Graphics2D g2d;
	    Line2D.Double line = new Line2D.Double();
	    //Set colour to black
	    g.setColor(Color.black);
	    
	    //Validate the number of pages

	  	    
	      //Create a graphic2D object a set the default parameters
	      g2d = (Graphics2D) g;
	      g2d.setColor(Color.black);

	      //Translate the origin to be (0,0)
	      //Note: Imageable includes already margins for Headers and Footers
	      g2d.translate(printAreaX, printAreaY);

	      //-- (1) Print the line on the left side
	      line.setLine(0, 0, 0, pageFormat.getHeight()+500);
	      g2d.draw(line);
	      
	      //-- (2) Print the physicians attributes
	      
	      g.setFont(fntBold);
	      //Measure String height to start drawing at the right place
	      metrics = g.getFontMetrics(fntBold);
	      intMeasureY += metrics.getHeight();
	      
	      g.drawString(ph.getTitle() + " " + ph.getFirstname() + " " + ph.getLastname(),intMarginLeft,intMeasureY); //$NON-NLS-1$ //$NON-NLS-2$
	      
	     
	      //Set font to default
	      g.setFont(fnt);
	      
	     //Measure the x-position (Page-Width - length of string)
	      metrics = g.getFontMetrics(fnt);
	     
	      //Draw the date
	      g.drawString(rp.getDate(),intPageWidth - metrics.stringWidth(rp.getDate()),intMeasureY);    
	      
	      intMeasureY += metrics.getHeight();
	           
	      
	      //Draw strings of Address, Phone and insurance information
	      g.drawString(ph.getSpecialty1(),intMarginLeft,intMeasureY);
	                
	      if (ph.getSpecialty2().length() > 0) {
	    	  intMeasureY +=intDefaultHeight;
	    	  g.drawString(ph.getSpecialty2(),intMarginLeft,intMeasureY);
	      }
	      
	      intMeasureY +=intSpace;
	    	  
	      g.drawString(ph.getStreet() + " " + ph.getPostbox(),intMarginLeft,intMeasureY); //$NON-NLS-1$
	     
	      intMeasureY +=intDefaultHeight;
	      
	      g.drawString(ph.getZip() + " " + ph.getCity(),intMarginLeft,intMeasureY); //$NON-NLS-1$
	      
	      intMeasureY += intSpace;
	      
	      //Measure the label strings to align the phone and fax numbers
	      int phoneWidth = metrics.stringWidth(PHONE);
	      
	      if (metrics.stringWidth(PHONE) < metrics.stringWidth(FAX) && ph.getFax().length() > 0)
	    	  phoneWidth = metrics.stringWidth(FAX);
	      
	      
	      g.drawString(PHONE,intMarginLeft,intMeasureY);   
	      g.drawString(ph.getPhone(),intMarginLeft+phoneWidth,intMeasureY);
	      
	      if (ph.getFax().length() > 0 ) {
	    	  intMeasureY +=intDefaultHeight;
	          
	          g.drawString(FAX,intMarginLeft,intMeasureY);
	          g.drawString(ph.getFax(),intMarginLeft+phoneWidth,intMeasureY);
	    	  
	      }
	          
	      intMeasureY += intSpace;
	      
	      //Measure the label strings to align the ZSR and EAN identifiers
	      int EANWidth = metrics.stringWidth(ZSR);
	      
	      if (metrics.stringWidth(ZSR) < metrics.stringWidth(EAN) && ph.getGlnid().length() > 0)
	    	  EANWidth = metrics.stringWidth(EAN);
	      
	      
	      g.drawString(ZSR,intMarginLeft,intMeasureY);
	      g.drawString(ph.getZsrid(),intMarginLeft+EANWidth,intMeasureY);
	      
	      
	      if(ph.getGlnid().length() > 0) {
	      
		      intMeasureY +=intDefaultHeight;
		      
		      g.drawString(EAN,intMarginLeft,intMeasureY);
		      g.drawString(ph.getGlnid(),intMarginLeft+EANWidth,intMeasureY);
		      
	      }
	      
	      intMeasureY += intSpaceBig;
	                
	      //-- (3) Print the line
	      line.setLine(intMarginLeft, intMeasureY, pageFormat.getWidth(),intMeasureY);
	      g2d.draw(line);
	      
	      intMeasureY += intSpaceBig + intSpace;
	      
	      //-- (4) Title
	      g.setFont(fntTitle);
	      g.drawString(TITLE, intMarginLeft, intMeasureY);
	      
	      
	      intMeasureY +=intSpaceBig + intDefaultHeight;
	      
	      //-- (5) Patient
	      g.setFont(fntBold);
	      
	      g.drawString(pat.getName() + " " + pat.getVorname(), intMarginLeft, intMeasureY); //$NON-NLS-1$
	      
	      metrics = g.getFontMetrics(fntBold);
	      int xPat = intMarginLeft + metrics.stringWidth(pat.getName() + " " + pat.getVorname()); //$NON-NLS-1$
	      
	      g.setFont(fnt);
	      g.drawString(", " + BORN + pat.getGeburtsdatum(), xPat, intMeasureY); //$NON-NLS-1$
	      
	      intMeasureY +=intSpaceBig + intSpace;
	      
	      //-- (6) Products
	      LineBreakMeasurer lineBreakMeasurer;
	   	  int intstart, intend;
		 
		  Hashtable hash = new Hashtable();

		  //Print all the items
	      for(int i = this.firstProd; i <= lastProd; i = i+1) {
				 
	    	 	    	 	    	  
				ch.elexis.data.Prescription actualLine =  rp.getLines().get(i);
				Artikel article = actualLine.getArtikel();
				
										  			 
				 AttributedString attributedString = new AttributedString(
						 "1x " + article.getLabel(), hash); //$NON-NLS-1$
				  
				  attributedString.addAttribute(TextAttribute.FONT, fntBold);
				  
				  g2d.setFont(fntBold);
				  FontRenderContext frc = g2d.getFontRenderContext();
				  
				  AttributedCharacterIterator attributedCharacterIterator =  attributedString.getIterator();
				  
				  intstart = attributedCharacterIterator.getBeginIndex();
				  intend = attributedCharacterIterator.getEndIndex();
				  
				  lineBreakMeasurer = new LineBreakMeasurer(attributedCharacterIterator,frc);
				  
				  float width = (float) intPageWidth-intMarginLeft;
				  
				  int X = intMarginLeft;
			
				  lineBreakMeasurer.setPosition(intstart);		  
				  
				  //Create TextLayout accordingly and draw it
				  while (lineBreakMeasurer.getPosition() < intend) {
				
				  TextLayout textLayout = lineBreakMeasurer.nextLayout(width);
				  
				  intMeasureY += textLayout.getAscent();
				  X = intMarginLeft;
				  
				
				  textLayout.draw(g2d, X, intMeasureY);
				  intMeasureY += textLayout.getDescent() + textLayout.getLeading();
						  
				  }
				    
			    //Draw the label
			    String label = actualLine.getBemerkung();
			    
			    if (actualLine.getDosis().length() > 0 ){
			    	
			    	label = actualLine.getDosis() + ", " + label; //$NON-NLS-1$
			    	
			    }
			    
			    //If there is no label specified, go to the next iterations
			    if (label.length() == 0) {
			    	intMeasureY += intSpaceBig*2;
			    	continue;
			    }
			    
			    
			    attributedString = new AttributedString(label, hash);
			       
				attributedString.addAttribute(TextAttribute.FONT, fnt);
						  
				g2d.setFont(fnt);
				frc = g2d.getFontRenderContext();
				  
				attributedCharacterIterator =  attributedString.getIterator();
				  
						  intstart = attributedCharacterIterator.getBeginIndex();
						  intend = attributedCharacterIterator.getEndIndex();
						  			
						  lineBreakMeasurer = new LineBreakMeasurer(attributedCharacterIterator,frc);
						 
						  lineBreakMeasurer.setPosition(intstart);
						  
						  //Create TextLayout accordingly and draw it
						  while (lineBreakMeasurer.getPosition() < intend) {
						
							  //Extra code to determine line breaks in the string --> go on new line, if there is one
							  int next = lineBreakMeasurer.nextOffset(width);
							  int limit = next;
							  if (limit <= label.length()) {
							    for (int k = lineBreakMeasurer.getPosition(); k < next; ++k) {
							      char c = label.charAt(k);
							      if (c == '\n') {
							        limit = k + 1;
							        break;
							      }
							    }
							  }  
							  
							  
						  TextLayout textLayout = lineBreakMeasurer.nextLayout(width,limit, false);
						  
						  intMeasureY += textLayout.getAscent();
						  X = intMarginLeft;
						  					
						  textLayout.draw(g2d, X, intMeasureY);
						  intMeasureY += textLayout.getDescent() + textLayout.getLeading();
						  
						  }	
			    						  
							  
			    intMeasureY += intSpaceBig*2;
		    		  
		    
	      }
	      
	     
	      //(7) Draw now the Footer:
	      
		 //Create the barcodes
	      Barcode bc = new Barcode();
		  
	      this.imgCode128 = bc.getCode128(presID);
	      this.imgQRCode = bc.getQRCode(QRCode);
			
	      //(a) Code 128 with decoded String
	      g.setFont(fntBold);
	      metrics = g.getFontMetrics(fntBold);
	      int xPrescId = intPageWidth-Code128Width + Integer.valueOf((int) Math.round((Code128Width-metrics.stringWidth(this.presID))/2));
	      
	      g.drawString(this.presID, xPrescId, pageHeight);
	      
	      g.drawImage(imgCode128, intPageWidth-Code128Width,pageHeight -Code128Height -intDefaultHeight ,Code128Width,Code128Height, null);
	      
	      //(b) QR-Code
	      g.drawImage(imgQRCode, intMarginLeft,pageHeight - QRCodeBorder ,QRCodeBorder,QRCodeBorder, null);
	      
	      //(c) Promotion-String
	      g.setColor(Color.gray);
	      metrics = g.getFontMetrics(fntItalic);
	      g.setFont(fntItalic);
	      g.drawString(PROMO, Integer.valueOf((int) Math.round((intMarginLeft+(QRCodeBorder -metrics.stringWidth(PROMO))/2))), pageHeight);
	      
	      //set to default
	      g.setColor(Color.black);
	      g.setFont(fnt);
	      
	      
	      //(8) Return, that this page exists and thus will be rendered and printed
	      return (PAGE_EXISTS);
	      
  }  
}