?? openimage.java
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* Display the Image instance in a panel (JJImgPanel). Then it inserts * the panel in an internal frame * */ private void displayImage(String info, boolean isTemporaryFile) { if(image==null) return; // No image has been created // +---------------------------------+ // | Display Image in internal frame | // +---------------------------------+ mainFrame.setCursor(Cursor.WAIT_CURSOR); JInternalFrame f = new JInternalFrame("",true,true,true,true); // Set preferred size for using scroll-bars appropriately JJImgPanel imgPanel = new JJImgPanel(image,new Rectangle(0,0,width,height),ncImg, mainFrame); // Scroll bars, rules and corners JScrollPane imgScrollPane = new JScrollPane(imgPanel); f.getContentPane().add(imgScrollPane); f.pack(); // Display the decoding rate in the title Rectangle rect = new Rectangle(0,0,width,height); FrameAttribute fA = new FrameAttribute(ncImg,rawFile,rect,imgPanel, inFile.getName()+" @ "+ df.format(rate)+" bpp",info, imgScrollPane,isTemporaryFile); mainFrame.addInternalFrame(f,fA); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } /** Opens three PGX files and display them as a RGB image */ private void openThreePGX(File in) { mainFrame.setCursor(Cursor.WAIT_CURSOR); // Retrieve file names prefix String prefix = in.getPath(). substring(0,in.getPath().lastIndexOf('.')); // Image readers ImgReaderPGX[] imr = new ImgReaderPGX[3]; ImgDataJoiner joiner; try { imr[0] = new ImgReaderPGX(prefix+"-1.pgx"); imr[1] = new ImgReaderPGX(prefix+"-2.pgx"); imr[2] = new ImgReaderPGX(prefix+"-3.pgx"); BlkImgDataSrc[] src = new BlkImgDataSrc[3]; src[0] = new RescaleImgReader(imr[0]); src[1] = new RescaleImgReader(imr[1]); src[2] = new RescaleImgReader(imr[2]); int[] cc = new int[3]; cc[0] = cc[1] = cc[2] = 0; joiner = new ImgDataJoiner(src,cc); width = imr[0].getImgWidth(); height = imr[0].getImgHeight(); } catch(IOException e) { JOptionPane.showMessageDialog(desktop, "Cannot open specified images: "+ prefix+"-{0,1,2}.pgx","Error", JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } // Image producer try { image = BlkImgDataSrcImageProducer.createImage(joiner); } catch(IllegalArgumentException e) { JOptionPane.showMessageDialog(desktop, "Cannot create image producer", "Error", JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } rate = (inFile.length()*8f)/(width*height); } /** Opens the specified PGX file and creates the Image instance */ private void openPGX(File in) { mainFrame.setCursor(Cursor.WAIT_CURSOR); // Image reader ImgReaderPGX imr; try { imr = new ImgReaderPGX(in.getPath()); width = imr.getImgWidth(); height = imr.getImgHeight(); } catch(IOException e) { JOptionPane.showMessageDialog(desktop, "Cannot open specified image: "+ in.getPath(),"Error", JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } // Image producer try { image = BlkImgDataSrcImageProducer. createImage(new RescaleImgReader(imr)); } catch(IllegalArgumentException e) { JOptionPane.showMessageDialog(desktop, "Cannot create image producer", "Error", JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } rate = inFile.length()*8f/width/height; } /** Open the PPM file and creates the Image instance */ private void openPPM(File in) { mainFrame.setCursor(Cursor.WAIT_CURSOR); // Image reader ImgReaderPPM imr; try { imr = new ImgReaderPPM(in.getPath()); width = imr.getImgWidth(); height = imr.getImgHeight(); ncImg = 3; depth = new int[3]; depth[0] = depth[1] = depth[2] = 8; } catch(IOException e) { JOptionPane.showMessageDialog(desktop, "Cannot open specified image: "+ in.getPath(),"Error", JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } // Image producer try { image = BlkImgDataSrcImageProducer.createImage(imr); } catch(IllegalArgumentException e) { JOptionPane.showMessageDialog(desktop, "Cannot create image reader", "Error", JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } rawFile = inFile; rate = inFile.length()*8f/width/height; } /** Open the PGM file and creates the Image instance */ private void openPGM(File in) { mainFrame.setCursor(Cursor.WAIT_CURSOR); // Image reader ImgReaderPGM imr; try { imr = new ImgReaderPGM(in.getPath()); width = imr.getImgWidth(); height = imr.getImgHeight(); } catch(IOException e) { JOptionPane.showMessageDialog(desktop, "Cannot open specified image: "+ in.getPath(),"Error", JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } // Image producer try { image = BlkImgDataSrcImageProducer.createImage(imr); } catch(IllegalArgumentException e) { JOptionPane.showMessageDialog(desktop, "Cannot create image reader", "Error", JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } rawFile = inFile; rate = inFile.length()*8f/width/height; } /** Open the JPEG file, creates the Image instance and the rawFile */ private void openJPEG(File in) { mainFrame.setCursor(Cursor.WAIT_CURSOR); JPEGImageDecoder decoder = null; try { // Decode the JPEG file and create the BufferedImage instance decoder = JPEGCodec.createJPEGDecoder(new FileInputStream(in)); image = decoder.decodeAsBufferedImage(); Raster raster = ((BufferedImage)image).getData(); ncImg = raster.getNumBands(); height = raster.getHeight(); width = raster.getWidth(); // Save decoded image in a temporary PGM or PPM file if(ncImg==1) { // PGM file String header = "P5\n"+width+" "+height+"\n255\n"; rawFile = File.createTempFile("decoded",".pgm"); BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(rawFile)); bos.write(header.getBytes()); for(int i=0; i<height; i++) { for(int j=0; j<width; j++) { bos.write(raster.getSample(j,i,0)); } } bos.close(); } else if(ncImg==3) { // PPM file String header = "P6\n"+width+" "+height+"\n255\n"; rawFile = File.createTempFile("decoded",".ppm"); BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(rawFile)); bos.write(header.getBytes()); for(int i=0; i<height; i++) { for(int j=0; j<width; j++) { bos.write(raster.getSample(j,i,0)); bos.write(raster.getSample(j,i,1)); bos.write(raster.getSample(j,i,2)); } } bos.close(); } else { // Not supported number of components JOptionPane.showMessageDialog(desktop,"Error", "Not supported JPEG format"+ inFile.getPath(), JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } } catch(IOException e) { // Error when decoding JPEG file JOptionPane.showMessageDialog(desktop,inFile.getPath(), "Unable to open JPEG file: "+ inFile.getPath(), JOptionPane.ERROR_MESSAGE); mainFrame.setCursor(Cursor.DEFAULT_CURSOR); return; } rate = inFile.length()*8f/width/height; } /** * Open the JPEG 2000 file/codestream, creates the Image instance and the * rawFile * */ private void openJPEG2000(ParameterList pl) { // Input file pl.put("i",inFile.getPath()); // Ouput file tmpDecFile = null; for(int c=0; c<ncImg; c++) { if(depth[c]>8) { pgxNeeded = true; } } try { if(pgxNeeded) { tmpDecFile = File.createTempFile("decoded", ".pgx"); } else if(ncImg==3) { tmpDecFile = File.createTempFile("decoded",".ppm"); } else { tmpDecFile = File.createTempFile("decoded",".pgm"); } } catch(IOException ioe) { JOptionPane.showMessageDialog(null,inFile.getPath(), "Cannot decode the codestream", JOptionPane.ERROR_MESSAGE); return; } tmpDecFile.delete(); tmpDecFile.deleteOnExit(); pl.put("o",tmpDecFile.getPath()); // Register the FacilityManager (Dialogs) JJPopup mypop = new JJPopup(desktop); FacilityManager.registerMsgLogger(null,mypop); FacilityManager.registerProgressWatch(null,mainFrame); // Instantiate decoder dec = new Decoder(pl); if(dec.getExitCode() != 0) { // An error ocurred FacilityManager.getMsgLogger(). printmsg(MsgLogger.ERROR,"An error ocurred "+ "while instantiating the decoder."); FacilityManager.getMsgLogger().flush(); return; } // Run the decoder dec.setChildProcess(true); Thread thdec = new Thread(dec); // Watch decoder termination ThreadWatch tw = new ThreadWatch(this,thdec); Thread thWatch = new Thread(tw); thWatch.start(); } /** Display the decoded image once the decoding is over */ public void terminatedThread() { // Create the image if(ncImg==1) { if(pgxNeeded) { openPGX(tmpDecFile); } else { openPGM(tmpDecFile); } } else if(ncImg==3) { if(pgxNeeded) { openThreePGX(tmpDecFile); } else { openPPM(tmpDecFile); } } rawFile = tmpDecFile; rate = j2kdecoder.getRate(); // Display image String[] info = dec.getCOMInfo(); for(int i=1; i<info.length; i++) { info[0] += " - "+info[i]; } if(info.length>0) { displayImage(info[0],true); } else { displayImage("",true); } } /** * Handles events happening to registered components used to open and * display supported images. * */ public void actionPerformed(ActionEvent e) { Object o = e.getSource(); if(j2kdecoder!=null) { if(o==j2kdecoder.decOptOkBut) { // Simple JPEG 2000 decoding ParameterList pl = j2kdecoder.getSimpParameters(); openJPEG2000(pl); } else if(o==j2kdecoder.decOkBut) { // Advanced JPEG 2000 decoding ParameterList pl = j2kdecoder.getAdvParameters(); openJPEG2000(pl); } } }}?? 快捷鍵說明
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