Double view

src/main/java/ru/ras/iph/impose/doubleView.java

@@ -0,0 +1,102 @@
+package ru.ras.iph.impose;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import com.itextpdf.text.Document;
+import com.itextpdf.text.DocumentException;
+import com.itextpdf.text.PageSize;
+import com.itextpdf.text.Rectangle;
+import com.itextpdf.text.pdf.PdfContentByte;
+import com.itextpdf.text.pdf.PdfImportedPage;
+import com.itextpdf.text.pdf.PdfReader;
+import com.itextpdf.text.pdf.PdfWriter;
+
+public class doubleView {
+
+
+    /**
+     * Main method.
+     * @param    args    no arguments needed
+     * @throws DocumentException
+     * @throws IOException
+     */
+    public static void main(String[] args) throws IOException, DocumentException {
+    	if (args.length != 1) {
+			System.err.println("Usage: java -jar double.jar input_file1.pdf input_file2.pdf");
+			}
+    	File inputFile1 = null;
+    	File inputFile2 = null;
+
+    	if (args.length == 2){
+    		String inputFileName1 = args[0];
+    		String inputFileName2 = args[1];
+
+      	inputFile1 = new File(inputFileName1);	
+      	inputFile2 = new File(inputFileName2);
+    	} else {
+    		inputFile1 = FileChooser.chooseFile();
+    		inputFile2 = FileChooser.chooseFile();
+
+    	}
+
+    	if (inputFile1 == null || !inputFile1.exists()){
+    		System.err.println("Input file1 not found!");
+			System.exit(1);
+    	}
+    	if (inputFile2 == null || !inputFile2.exists()){
+    		System.err.println("Input file2 not found!");
+			System.exit(1);
+    	}
+    	FileInputStream inputStream1 = new FileInputStream(inputFile1);
+    	FileInputStream inputStream2 = new FileInputStream(inputFile2);
+
+    	String parentFolder = "";
+    	if (inputFile1.getParent() != null){
+    		parentFolder = inputFile1.getParent() + File.separator;
+    	}
+    	File outputFile = new File( parentFolder  + "double_" + inputFile1.getName());
+    	FileOutputStream outputStream = new FileOutputStream(outputFile);
+
+        PdfReader reader1 = new PdfReader(inputStream1);
+        PdfReader reader2 = new PdfReader(inputStream2);
+        Rectangle pageDoc1 = reader1.getPageSize(1);
+        Rectangle pageDoc2 = reader2.getPageSize(1);
+        float newWidth = pageDoc1.getWidth() + pageDoc2.getWidth();
+        float newHeight;
+        if (pageDoc1.getHeight() > pageDoc2.getHeight()) {
+        	newHeight = pageDoc1.getHeight();
+        } else {
+        	newHeight = pageDoc2.getHeight();
+        }
+        Rectangle newPageSize = new Rectangle(newWidth, newHeight );
+        Document document = new Document(newPageSize);
+
+        Rectangle pagesize = document.getPageSize();
+
+        PdfWriter writer = PdfWriter.getInstance(document, outputStream);
+        document.open();
+        PdfContentByte canvas = writer.getDirectContent();
+        PdfImportedPage page1doc = writer.getImportedPage(reader1, 1);
+        PdfImportedPage page2doc;
+        for (int i = 1; i <= reader1.getNumberOfPages() || i <= reader2.getNumberOfPages() ; i++ ) {
+
+  				//canvas.addTemplate(page1doc, 1f, 0, 0, 1f, deltaWLayout ,deltaHLayout );
+  				if (i <= reader1.getNumberOfPages()) {
+          	page1doc = writer.getImportedPage(reader1, i);
+  					canvas.addTemplate(page1doc, 1f, 0, 0, 1f, 0 ,0 );	
+  				}
+  				if (i <= reader2.getNumberOfPages()) {
+          	page2doc = writer.getImportedPage(reader2, i);
+  					canvas.addTemplate(page2doc, 1f, 0, 0, 1f, page1doc.getWidth() ,0 );	
+  				}
+
+					document.newPage();
+        }
+			  // step 5
+        document.close();
+        reader1.close();
+    }
+}
+