import java.util.*; import java.io.*; import javax.swing.*; import java.net.*; import java.awt.*; import java.awt.event.*; import java.applet.*; /** * Contains all functionality for saving and loading the current state * of the system, all operators and links, locations, parameter settings * etc. */ public class fileIO { /** * The system layout file for loading from/saving to. */ File file; /** * Predefined java component for graphically selecting a file * to load/save (appears to have some problems with repainting itself). */ JFileChooser fileChooser; /** * List of all operators currently in the system. */ ArrayList boxes; /** * All links currently in the system. */ linkData links; /** * Frame that the whole UI is based around. */ JFrame frame; /** * The URL of the file */ URL url; HttpURLConnection uc; InputStream is; int urlcode; String urlmess; URLStreamHandler ush; URL fileIOdocbase; /** * The textbox for giving the URL */ JTextField urlText; /** * No argument constructor. */ public fileIO(){ } /** * Constructor taking details of all operatorBoxes and links in the * system, so that all details can be saved correctly. * @param boxes a list of all operatorBoxes (and therefore operators) * in the system * @param links all links in the system */ public fileIO(ArrayList boxes, linkData links, JFrame frame){ this.boxes = boxes; this.links = links; this.frame = frame; layoutFilter filter = new layoutFilter(); resetFile(); } /** * Clears the current system by removing all the operators and links. */ public void clearSystem(){ if(!boxes.isEmpty()){ ((operatorBox) boxes.get(0)).removeAllOperators(); } } /** * Sets/resets the default file name (to prevent a new blank layout * being saved overwriting a recently saved layout). */ public void resetFile(){ file = new File("UNTITLED.hjv"); } /** * Saves the layout of the current system to the current file name, * if the current file name is the default file name then allow the * user to select a more suitable name (don't save the file as the * default name). */ public void saveSystem(AppletContext appcontext){ FileWriter saveFile; String data = new String(); String header = new String("//Automatically generated save file.ZZZ1"); String header2 = new String("//ZZZ1//ZZZ1//. . . . . . . . .ZZZ2BLINKZZZ3SAVE AS PLAIN TEXTZZZ2ZZZ4BLINKZZZ3. . . . . . . . .ZZZ1//ZZZ1//ZZZ1"); data = data + header + header2; // save frame size Dimension frameSize = frame.getSize(); data = data + "Resize " + frameSize.width + " " + frameSize.height + " ENDZZZ1"; // Save operators Iterator it = boxes.iterator(); while(it.hasNext()){ operatorBox box = (operatorBox) it.next(); data = data+box.representsOperator.saveOperator(); } data = data + links.saveLinks(); data = data + "EOFZZZ1"; // replace blanks in string by % // String newdata = data.replace(' ','%'); String newdata = data.replaceAll(" ","ZZZ0"); // Save string in displayed document URL cgiurl; try { // cgiurl = new URL("http://www.dai.ed.ac.uk/cgi-bin/rbf/hipreko.pl?"+newdata); cgiurl = new URL("http://homepages.inf.ed.ac.uk/cgi/rbf/hipreko.pl?"+newdata); } catch (MalformedURLException e4) { System.out.println("Exec: MalformedURLException: "+e4); JOptionPane.showMessageDialog(null, "Couldn't save file for some reason, skipping save.", "Invalid Value", JOptionPane.WARNING_MESSAGE); return; } appcontext.showDocument(cgiurl,"_blank" ); } /** * Load the location of an operator from the file, so that the * layout is correct. * @param op the operator to be placed at the correct location * @param tokenizer the input file layered stream */ public void loadLocation(operator op, StreamTokenizer tokenizer) throws IOException{ int tokenType; tokenType = tokenizer.nextToken(); double x = tokenizer.nval; tokenType = tokenizer.nextToken(); double y = tokenizer.nval; op.getBox().setLocation((int) x, (int) y); } /** * Popup a window to allow the user to give a full URL */ public void popUrl() { JFrame frame = new JFrame("Network Loader"); urlText = new JTextField(40); JLabel urlLabel = new JLabel("Full URL:"); JButton enterButton = new JButton("Load"); JPanel panel = new JPanel(); panel.add(urlLabel); panel.add(urlText); panel.add(enterButton); enterButton.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ getUrl(); if (url != null ) { loadURLSystem(); } }}); frame.getContentPane().add(panel); frame.pack(); frame.setVisible(true); frame.setState(JFrame.NORMAL); } /** * Gets the URL in the popup window */ public void getUrl() { // try for either a local demo network or a full URL try { // see if a full URL url = new URL(urlText.getText()); } catch (MalformedURLException e) { // if a file rather than a URL, then try local file space try { url = new URL(fileIOdocbase,"NETWORKS/"+urlText.getText()); } catch (MalformedURLException e4) { // If still not a URL and not a file then report error JOptionPane.showMessageDialog(null,("Incorrect URL given"), "Load Error", JOptionPane.WARNING_MESSAGE); return; } } } public void loadURLSystem() { operator newOp = null; StreamTokenizer tokenizer; int tokenType; boolean isload = false; ArrayList namesFromFile = new ArrayList(); ArrayList operatorsFromUI = new ArrayList(); // make the connection try { uc = (HttpURLConnection) url.openConnection(); } catch (IOException e15) { System.out.println(" IOException e15: "+e15); JOptionPane.showMessageDialog(null, "Couldn't open file for some reason, skipping load.", "Invalid Value", JOptionPane.WARNING_MESSAGE); return; } // see if we can get an input stream for the URL try { is = uc.getInputStream(); } catch (IOException e4) { JOptionPane.showMessageDialog(null, "Couldn't get input stream for some reason, skipping load.", "Invalid Value", JOptionPane.WARNING_MESSAGE); System.out.println(" IOException e4: "+e4); return; } clearSystem(); try{ Reader r = new BufferedReader(new InputStreamReader(is)); tokenizer = new StreamTokenizer(r); tokenizer.eolIsSignificant(false); tokenizer.parseNumbers(); tokenizer.slashSlashComments(true); tokenizer.slashStarComments(true); // System.out.println("Loaded data is as follows - "); tokenType = tokenizer.nextToken();//get the first token // check for "<" as first character -> improperly saved file if (tokenizer.ttype != tokenizer.TT_NUMBER && tokenizer.ttype != tokenizer.TT_WORD) { char c = (char)tokenizer.ttype; if (c == '<') { JOptionPane.showMessageDialog(null, "Invalid file format. Resave as plain text?", "Invalid Value", JOptionPane.WARNING_MESSAGE); return; } } // might be ok - start scanning while(tokenType!=tokenizer.TT_EOF){//stop when EOF is reached // see what the type of the token read is //System.out.println("TOKEN TYPE: "+tokenType+" SVAL: "+tokenizer.sval); isload = false; if (tokenizer.ttype == tokenizer.TT_WORD) { //System.out.println("IO T1:"); if (tokenizer.sval.equals("EOF")) break; //System.out.println("IO T2:"); // see if links to be added if(tokenizer.sval.equals("Link")){ //System.out.println("IO L1:"); links.loadLink(tokenizer,namesFromFile,operatorsFromUI); //System.out.println("IO L2:"); tokenType = tokenizer.nextToken(); // get END token tokenType = tokenizer.nextToken(); // get next //System.out.println("IO L3:"); continue; }else if (tokenizer.sval.equals("Resize")){ tokenType = tokenizer.nextToken(); // get X size int xsize = ((int)tokenizer.nval); tokenType = tokenizer.nextToken(); // get Ysize int ysize = ((int)tokenizer.nval); frame.setSize(xsize,ysize); tokenType = tokenizer.nextToken(); // get END token tokenType = tokenizer.nextToken(); // get next continue; }else{ //System.out.println("IO OP1:"); // see if operator to be added String optype = tokenizer.sval; //System.out.println("IO 2.7: "+tokenizer); tokenType = tokenizer.nextToken(); // get _ //System.out.println("IO 2.8: "+tokenizer); tokenType = tokenizer.nextToken(); // get instance int opinst = ((int)tokenizer.nval); String opname = optype + "_" + opinst; //System.out.println("IO 2.85: opname: "+opname); namesFromFile.add(opname); //System.out.println("IO OP2:"); if(optype.startsWith("Kernel3x3TwoState")){ newOp = new kernel3x3TwoState(links.getPanel(),links); }else if(optype.startsWith("Kernel3x3ThreeState")){ newOp = new kernel3x3ThreeState(links.getPanel(),links); }else if(optype.startsWith("Kernel3x3double")){ newOp = new kernel3x3Double(links.getPanel(),links); }else if(optype.startsWith("ScaleOffset")){ newOp = new scaleOffset(links.getPanel(),links); }else if(optype.startsWith("ConvolutionPadded")){ newOp = new convolutionPadded(links.getPanel(),links); }else if(optype.startsWith("Convolution")){ newOp = new convolution(links.getPanel(),links); }else if(optype.startsWith("ImageDisplay")){ newOp = new imageDisplay(links.getPanel(),links); }else if(optype.startsWith("ImageLoad")){ //System.out.println("IO 1: "+fileIOdocbase); newOp = new imageLoad(links.getPanel(),links,fileIOdocbase); //System.out.println("IO 2: "); isload = true; }else if(optype.startsWith("Addition")){ newOp = new addition(links.getPanel(),links); }else if(optype.startsWith("Subtraction")){ newOp = new subtraction(links.getPanel(),links); }else if(optype.startsWith("Multiplication")){ newOp = new multiplication(links.getPanel(),links); }else if(optype.startsWith("Division")){ newOp = new division(links.getPanel(),links); }else if(optype.startsWith("Blending")){ newOp = new blending(links.getPanel(),links); }else if(optype.startsWith("Thresholding")){ newOp = new threshold(links.getPanel(),links); }else if(optype.startsWith("RobertsCross")){ newOp = new robertsCross(links.getPanel(),links); }else if(optype.startsWith("Sobel")){ newOp = new sobel(links.getPanel(),links); }else if(optype.startsWith("Canny")){ newOp = new canny(links.getPanel(),links); }else if(optype.startsWith("Hough")){ newOp = new hough(links.getPanel(),links); }else if(optype.startsWith("AND")){ newOp = new and(links.getPanel(),links); }else if(optype.startsWith("OR")){ newOp = new or(links.getPanel(),links); }else if(optype.startsWith("XOR")){ newOp = new xor(links.getPanel(),links); }else if(optype.startsWith("NOT")){ newOp = new not(links.getPanel(),links); }else if(optype.startsWith("BitShifting")){ newOp = new bitshift(links.getPanel(),links); }else if(optype.startsWith("AdaptiveThresholding")){ newOp = new adaptiveThreshold(links.getPanel(),links); }else if(optype.startsWith("ContrastStretching")){ newOp = new contrastStretch(links.getPanel(),links); }else if(optype.startsWith("HistogramEqualizing")){ newOp = new equalize(links.getPanel(),links); }else if(optype.startsWith("Logarithm")){ newOp = new logarithm(links.getPanel(),links); }else if(optype.startsWith("Exponential")){ newOp = new exponential(links.getPanel(),links); }else if(optype.startsWith("RaiseToPower")){ newOp = new raiseToPower(links.getPanel(),links); }else if(optype.startsWith("Scaling")){ newOp = new scale(links.getPanel(),links); }else if(optype.startsWith("Rotation")){ newOp = new rotate(links.getPanel(),links); }else if(optype.startsWith("Reflection")){ newOp = new reflect(links.getPanel(),links); }else if(optype.startsWith("Translation")){ newOp = new translate(links.getPanel(),links); }else if(optype.startsWith("Affine")){ newOp = new affine(links.getPanel(),links); }else if(optype.startsWith("Intensity")){ newOp = new histogram(links.getPanel(),links); }else if(optype.startsWith("Classification")){ newOp = new classify(links.getPanel(),links); }else if(optype.startsWith("Labelling")){ newOp = new labelling(links.getPanel(),links); }else if(optype.startsWith("Dilation")){ newOp = new dilation(links.getPanel(),links); }else if(optype.startsWith("Erosion")){ newOp = new erosion(links.getPanel(),links); }else if(optype.startsWith("Opening")){ newOp = new opening(links.getPanel(),links); }else if(optype.startsWith("Closing")){ newOp = new closing(links.getPanel(),links); }else if(optype.startsWith("HitAndMiss")){ newOp = new hitAndMiss(links.getPanel(),links); }else if(optype.startsWith("Thinning")){ newOp = new thinning(links.getPanel(),links); }else if(optype.startsWith("Thickening")){ newOp = new thickening(links.getPanel(),links); }else if(optype.startsWith("Skeletonization")){ newOp = new skeletonize(links.getPanel(),links); }else if(optype.startsWith("MedialAxisTransform")){ newOp = new mat(links.getPanel(),links); }else if(optype.startsWith("MeanSmooth")){ newOp = new meanSmooth(links.getPanel(),links); }else if(optype.startsWith("MedianSmoothing")){ newOp = new medianSmooth(links.getPanel(),links); }else if(optype.startsWith("GaussianSmoothing")){ newOp = new gaussianSmooth(links.getPanel(),links); }else if(optype.startsWith("ConservativeSmoothing")){ newOp = new conservativeSmooth(links.getPanel(),links); }else if(optype.startsWith("Crimmins")){ newOp = new crimmins(links.getPanel(),links); }else if(optype.startsWith("LaplacianOfGaussian")){ newOp = new lapOfGauss(links.getPanel(),links); }else if(optype.startsWith("Laplacian")){ newOp = new laplacian(links.getPanel(),links); }else if(optype.startsWith("Unsharp")){ newOp = new unsharpFilter(links.getPanel(),links); }else if(optype.startsWith("Compass")){ newOp = new compass(links.getPanel(),links); }else if(optype.startsWith("ZeroCrossing")){ newOp = new zeroCrossing(links.getPanel(),links); }else if(optype.startsWith("LineDetector")){ newOp = new lineDetector(links.getPanel(),links); }else if(optype.startsWith("BinaryBoundaryExtractor")){ newOp = new boundary(links.getPanel(),links); }else if(optype.startsWith("Distance")){ newOp = new distance(links.getPanel(),links); }else if(optype.startsWith("Fourier")){ newOp = new fourier(links.getPanel(),links); }else if(optype.startsWith("FFTMask")){ newOp = new mask(links.getPanel(),links); }else if(optype.startsWith("RandomNoise")){ newOp = new noise(links.getPanel(),links); }else{ System.out.println("fileIO - Unrecognized operator: "+tokenizer.sval); } } } else if (tokenizer.ttype == tokenizer.TT_NUMBER) { System.out.println("fileIO load error: "+tokenType+" "+tokenizer.nval); } // load location and parameters: need special case for imageLoad //System.out.println("IO 2.9: "+tokenizer); loadLocation(newOp,tokenizer); //System.out.println("IO 4: "); if (isload) { //System.out.println("IO 5: "); ((imageLoad)newOp).loadParameters(tokenizer,fileIOdocbase); //System.out.println("IO 6: "); } else { //System.out.println("IO 7: "); newOp.loadParameters(tokenizer); tokenType = tokenizer.nextToken(); // get END token tokenType = tokenizer.nextToken(); // get next //System.out.println("IO 8: "); } //System.out.println("IO 8a: "); operatorsFromUI.add(newOp); //System.out.println("IO 9: "); } //System.out.println("IO 10: "); // tokenType = tokenizer.nextToken(); //System.out.println("IO 11: "); } catch(NumberFormatException nfe){ //System.out.println("IO 12: "); System.out.println("fileIO: unexpected number format error"+nfe); JOptionPane.showMessageDialog(null, "Unexpected number format error, skipping load.", "Invalid Value", JOptionPane.WARNING_MESSAGE); }catch(FileNotFoundException fnfe){ System.out.println("fileIO - File not found"+fnfe); JOptionPane.showMessageDialog(null, "File not found, skipping load.", "Invalid Value", JOptionPane.WARNING_MESSAGE); }catch(IOException ioe){ System.out.println("fileIO - IO error"+ioe); JOptionPane.showMessageDialog(null, "Some IO error, skipping load.", "Invalid Value", JOptionPane.WARNING_MESSAGE); } // close the connection uc.disconnect(); } /** * Popup a file load dialog box, to allow the user to select a * layout to load and then load it in to the program. */ public void loadSystem(URL tableaudocbase){ // get the URL and check if it's a correct URL fileIOdocbase = tableaudocbase; popUrl(); } /** * Filter for the load/save dialog boxes to limit the files visible * to the user (user selectable from a combo-box in the dialog. */ class layoutFilter extends javax.swing.filechooser.FileFilter{ public boolean accept(File f) { if (f.isDirectory()) { return true; } if(f.getName().endsWith(".hip")){ return true; }else{ return false; } } public String getDescription(){ return "System layout files (*.hip)"; } } }