protected void updateTexts() {
mLine1 = "PdfViewer: " + mText;
float fileTime = fileMillis * 0.001f;
float pageRenderTime = pageRenderMillis * 0.001f;
float pageParseTime = pageParseMillis * 0.001f;
mLine2 =
"render page="
+ format(pageRenderTime, 2)
+ ", parse page="
+ format(pageParseTime, 2)
+ ", parse file="
+ format(fileTime, 2);
int maxCmds = PDFPage.getParsedCommands();
int curCmd = PDFPage.getLastRenderedCommand() + 1;
mLine3 = "PDF-Commands: " + curCmd + "/" + maxCmds;
mLine1View.setText(mLine1);
mLine2View.setText(mLine2);
mLine3View.setText(mLine3);
if (mPdfPage != null) {
if (mBtPage != null)
mBtPage.setText(mPdfPage.getPageNumber() + "/" + mPdfFile.getNumPages());
if (mBtPage2 != null)
mBtPage2.setText(mPdfPage.getPageNumber() + "/" + mPdfFile.getNumPages());
}
}
private void showPage(int page, float zoom) throws Exception {
long startTime = System.currentTimeMillis();
long middleTime = startTime;
try {
// free memory from previous page
mGraphView.setPageBitmap(null);
mGraphView.updateImage();
mPdfPage = mPdfFile.getPage(page, true);
int num = mPdfPage.getPageNumber();
int maxNum = mPdfFile.getNumPages();
float wi = mPdfPage.getWidth();
float hei = mPdfPage.getHeight();
String pageInfo =
new File(pdffilename).getName() + " - " + num + "/" + maxNum + ": " + wi + "x" + hei;
mGraphView.showText(pageInfo);
Log.i(TAG, pageInfo);
RectF clip = null;
middleTime = System.currentTimeMillis();
Bitmap bi = mPdfPage.getImage((int) (wi * zoom), (int) (hei * zoom), clip, true, true);
mGraphView.setPageBitmap(bi);
mGraphView.updateImage();
} catch (Throwable e) {
Log.e(TAG, e.getMessage(), e);
mGraphView.showText("Exception: " + e.getMessage());
}
long stopTime = System.currentTimeMillis();
mGraphView.pageParseMillis = middleTime - startTime;
mGraphView.pageRenderMillis = stopTime - middleTime;
}
public void pdfRead() {
try {
String INPUTFILE = "example_2.pdf";
File file = new File(INPUTFILE);
RandomAccessFile raf = new RandomAccessFile(file, "r");
FileChannel channel = raf.getChannel();
ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
PDFFile pdffile = new PDFFile(buf);
// draw the first page to an image
PDFPage page = pdffile.getPage(0);
// get the width and height for the doc at the default zoom
Rectangle rect =
new Rectangle(0, 0, (int) page.getBBox().getWidth(), (int) page.getBBox().getHeight());
// generate the image
Image img =
page.getImage(
rect.width,
rect.height, // width & height
rect, // clip rect
null, // null for the ImageObserver
true, // fill background with white
true // block until drawing is done
);
frame.getContentPane().add(new JLabel(new ImageIcon(img)));
frame.pack();
frame.setSize(600, 700);
} catch (Exception e) {
System.out.println(e);
}
}
public static void imageConverter() {
System.out.println("…ffene Datei...");
File file = new File("./PDFFile/01 Access2010 EinfŸhrung.pdf");
RandomAccessFile raf;
try {
raf = new RandomAccessFile(file, "r");
FileChannel channel = raf.getChannel();
ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
PDFFile pdfFile = new PDFFile(buf);
// konvertiere erste seite in ein bild
int num = pdfFile.getNumPages();
for (int i = 0; i < num; i++) {
PDFPage page = pdfFile.getPage(i);
// ermittle Hoehe und Breite
int width = (int) page.getBBox().getWidth();
int height = (int) page.getBBox().getHeight();
// AWT
Rectangle rect = new Rectangle(0, 0, width, height);
int rotation = page.getRotation();
Rectangle rectl = rect;
if (rotation == 90 || rotation == 270) {
rectl = new Rectangle(0, 0, rect.height, rect.width);
}
// generiere Bild
BufferedImage img =
(BufferedImage)
page.getImage(
rect.width,
rect.height, // Breite Hoehe
rectl,
null,
true, // Fuelle Hintergrund weiss aus
true);
ImageIO.write(img, "png", new File("./PDFImages/" + i + ".png"));
System.out.println("Bild {" + i + " }erzeugt");
img.flush();
}
System.out.println("Bilder erzeugt!");
}
// Catcher
catch (FileNotFoundException e1) {
System.err.println(e1.getLocalizedMessage());
} catch (IOException e2) {
System.err.println(e2.getLocalizedMessage());
}
}
/** Add commands for this glyph to a page */
public Point2D addCommands(PDFPage cmds, AffineTransform transform, int mode) {
if (shape != null) {
GeneralPath outline = (GeneralPath) shape.createTransformedShape(transform);
cmds.addCommand(new PDFShapeCmd(outline, mode));
} else if (page != null) {
cmds.addCommands(page, transform);
}
return advance;
}
public Rectangle2D convertPDF2ImageCoord(Rectangle2D r) {
if (currentImage == null) return null;
int imwid = currentImage.getWidth(null);
int imhgt = currentImage.getHeight(null);
AffineTransform t = currentPage.getInitialTransform(imwid, imhgt, prevClip);
Rectangle2D tr = t.createTransformedShape(r).getBounds2D();
tr.setFrame(tr.getX(), tr.getY(), tr.getWidth(), tr.getHeight());
return tr;
}
private void showPage(int page, float zoom) throws Exception {
// long startTime = System.currentTimeMillis();
// long middleTime = startTime;
try {
// free memory from previous page
mGraphView.setPageBitmap(null);
mGraphView.updateImage();
// Only load the page if it's a different page (i.e. not just changing the zoom level)
if (mPdfPage == null || mPdfPage.getPageNumber() != page) {
mPdfPage = mPdfFile.getPage(page, true);
}
// int num = mPdfPage.getPageNumber();
// int maxNum = mPdfFile.getNumPages();
float width = mPdfPage.getWidth();
float height = mPdfPage.getHeight();
// String pageInfo= new File(pdffilename).getName() + " - " + num +"/"+maxNum+ ": " + width +
// "x" + height;
// mGraphView.showText(pageInfo);
// Log.i(TAG, pageInfo);
RectF clip = null;
// middleTime = System.currentTimeMillis();
Bitmap bi = mPdfPage.getImage((int) (width * zoom), (int) (height * zoom), clip, true, true);
mGraphView.setPageBitmap(bi);
mGraphView.updateImage();
writeTempFileToDisc(bi);
// bi.recycle();//ADDED FOR EFFICIENCY
File dir = Environment.getExternalStorageDirectory();
File file = new File(dir, IMAGE_PATH + mPage + ".jpg");
mImageUri = Uri.fromFile(file);
System.out.println("Displaying " + mImageUri.getPath());
mAllShareService.start(mImageUri.getPath());
if (progress != null) progress.dismiss();
} catch (Throwable e) {
Log.e(TAG, e.getMessage(), e);
mGraphView.showText("Exception: " + e.getMessage());
}
// long stopTime = System.currentTimeMillis();
// mGraphView.pageParseMillis = middleTime-startTime;
// mGraphView.pageRenderMillis = stopTime-middleTime;
}
public Rectangle2D convertImage2PDFCoord(Rectangle2D r) {
if (currentImage == null) return null;
int imwid = currentImage.getWidth(null);
int imhgt = currentImage.getHeight(null);
AffineTransform t;
try {
t = currentPage.getInitialTransform(imwid, imhgt, prevClip).createInverse();
r.setFrame(r.getX(), r.getY(), 1, 1);
Rectangle2D tr = t.createTransformedShape(r).getBounds2D();
tr.setFrame(tr.getX(), tr.getY(), tr.getWidth(), tr.getHeight());
return tr;
} catch (NoninvertibleTransformException e) {
return null;
}
}
public void write() {
int navg = 8;
// int nshift=3;
bookend = 8;
numPgs = pdffile.getNumPages();
files = new File[numPgs];
int[] pixelsi = null;
long[] sum = null;
long[][] hist = null;
BufferedImage bimage = null;
// BufferedImage simage = null;
// float data[] = { 0.0625f, 0.125f, 0.0625f, 0.125f, 0.25f, 0.125f,
// 0.0625f, 0.125f, 0.0625f };
// Kernel kernel = new Kernel(3, 3, data);
// ConvolveOp convolve = new ConvolveOp(kernel, ConvolveOp.EDGE_NO_OP, null);
done(0);
for (int i = 0; i < numPgs; i++) {
if (i > MAXPAGE) break;
PDFPage page = getPage(i);
if (i == 0) {
w = (int) page.getBBox().getWidth();
h = (int) page.getBBox().getHeight();
rect = new Rectangle(0, 0, w, h);
// w /= 2; h /=2;
bimage = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);
// simage = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);
pixelsi = new int[h * w];
sum = new long[h * w];
hist = new long[navg][h * w];
for (int j = 0; j < h * w; j++) {
sum[j] = 0;
}
page1.countDown();
}
// generate page image
Image image = pdffile.getPage(i).getImage(w, h, rect, null, true, true);
// force complete loading
image = new ImageIcon(image).getImage();
// Copy image to buffered image
Graphics g = bimage.createGraphics();
// Paint the image onto the buffered image
g.drawImage(image, 0, 0, null);
g.dispose();
// extract pixels into array
bimage.getRGB(0, 0, w, h, pixelsi, 0, w);
// Accumulate rolling averages
int im = i % navg;
int ii = i - navg / 2; // middle of averaging range
for (int j = 0; j < h * w; j++) {
int p = pixelsi[j], q = 0;
// Expand packed 8x3 pixel to 16x3
long r = 0, r2 = 0;
r |= (p & 0xff);
r <<= 16;
p >>= 8;
r |= (p & 0xff);
r <<= 16;
p >>= 8;
r |= (p & 0xff);
r = ~r;
sum[j] += r; // rolling sum
if (i >= navg) { // we have enough to average
sum[j] -= hist[im][j]; // roll off the old
hist[im][j] = r;
r2 = (3 * sum[j] / navg + r) / 4;
r = ~r2;
} else {
hist[im][j] = r;
}
// Repack averaged pixel
q |= (r & 0xff);
q <<= 8;
r >>= 16;
q |= (r & 0xff);
q <<= 8;
r >>= 16;
q |= (r & 0xff);
// Average over number of images frames with a non-background pixel in this location.
// Note that we sum in complement space, so background is zero.
// if(i>=navg)
// nfg[j] -= fghist[im][j];
// nfg[j] += (fghist[im][j] = (q==-1) ? 0 : 1);
//
// // If all pixels in history were background, this is easy...
// if(nfg[j]==0)
// q = -1;
//
// else {
//
// if(i>=navg) sum[k]-=hist[im][k];
// hist[im][k] = ~(p&0xff);
// sum[k] += hist[im][k];
// if(i>=navg)
// q += ~(((sum[k]/nfg[j])*3 + hist[iim][k])>>2);
// else if(i>=navg/2)
// q += ~(sum[k]/nfg[j] + hist[i-navg/2][k])>>1;
// else
// q += ~(sum[k]/nfg[j]);
// k++; q<<=8; p>>=8;
//
// if(i>=navg) sum[k]-=hist[im][k];
// hist[im][k] = ~(p&0xff);
// sum[k] += hist[im][k];
// if(i>=navg)
// q += ~(((sum[k]/nfg[j])*3 + hist[iim][k])>>2);
// else if(i>=navg/2)
// q += ~((sum[k]/nfg[j] + hist[i-navg/2][k])>>1);
// else
// q += ~(sum[k]/nfg[j]);
// k++; q<<=8; p>>=8;
//
// if(i>=navg) sum[k]-=hist[im][k];
// hist[im][k] = ~(p&0xff);
// sum[k] += hist[im][k];
// if(i>=navg)
// q += ~(((sum[k]/nfg[j])*3 + hist[iim][k])>>2);
// else if(i>=navg/2)
// q += ~((sum[k]/nfg[j] + hist[i-navg/2][k])>>1);
// else
// q += ~(sum[k]/nfg[j]);
// k++;
// }
pixelsi[j] = q;
}
bimage = new BufferedImage(w, h, BufferedImage.TYPE_3BYTE_BGR);
bimage.setRGB(0, 0, w, h, pixelsi, 0, w);
// save it as a file
if (i >= navg) {
try {
ImageIO.write(bimage, "png", imageFile(0, ii + 1));
} catch (Exception e) {
throw new RuntimeException(e.getMessage());
}
}
done(ii + 1);
// System.err.println("Page " + i + " " + (System.currentTimeMillis()-t0)/1000.);
if (terminated) {
System.err.println("Prematurely terminated");
for (File f : files) f.delete();
tmpdir.delete();
break;
}
}
}
public static void main(String[] args) {
try {
String sourceDir =
"d:\\Desarrollo\\git\\AyudaDigitalizacion\\AyudaDigitalizacion\\ocr.pdf"; // PDF file must
// be placed in
// DataGet
// folder
String destinationDir =
"d:\\Desarrollo\\git\\AyudaDigitalizacion\\AyudaDigitalizacion\\"; // Converted PDF page
// saved in this folder
File sourceFile = new File(sourceDir);
File destinationFile = new File(destinationDir);
String fileName = sourceFile.getName().replace(".pdf", "");
if (sourceFile.exists()) {
if (!destinationFile.exists()) {
destinationFile.mkdir();
System.out.println("Folder created in: " + destinationFile.getCanonicalPath());
}
RandomAccessFile raf = new RandomAccessFile(sourceFile, "r");
FileChannel channel = raf.getChannel();
ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
PDFFile pdf = new PDFFile(buf);
int pageNumber = 1; // which PDF page to be convert
PDFPage page = pdf.getPage(pageNumber);
// image dimensions
int width = 1200;
int height = 1400;
// imagenes rectificadas
width = (int) page.getBBox().getWidth();
height = (int) page.getBBox().getHeight();
// create the image
Rectangle rect =
new Rectangle(0, 0, (int) page.getBBox().getWidth(), (int) page.getBBox().getHeight());
BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
// width & height, // clip rect, // null for the ImageObserver, // fill background with
// white, // block until drawing is done
Image image = page.getImage(width, height, rect, null, true, true);
Graphics2D bufImageGraphics = bufferedImage.createGraphics();
bufImageGraphics.drawImage(image, 0, 0, null);
File imageFile =
new File(
destinationDir
+ fileName
+ "_"
+ pageNumber
+ ".jpg"); // change file format here. Ex: .png, .jpg, .jpeg, .gif, .bmp
ImageIO.write(bufferedImage, "png", imageFile);
System.out.println(
imageFile.getName() + " File created in: " + destinationFile.getCanonicalPath());
} else {
System.err.println(sourceFile.getName() + " File not exists");
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Stop the generation of any previous page, and draw the new one.
*
* @param page the PDFPage to draw.
*/
public void showPage(PDFPage page) {
// stop drawing the previous page
if (currentPage != null && prevSize != null) {
currentPage.stop(prevSize.width, prevSize.height, prevClip);
}
// set up the new page
currentPage = page;
if (page == null) {
// no page
currentImage = null;
clip = null;
currentXform = null;
canvas.repaint();
} else {
// Reset highlight
highlight = null;
boolean resize = false;
int newW = Math.round(zoomFactor * page.getWidth());
int newH = Math.round(zoomFactor * page.getHeight());
// setSize(Math.round(zoomFactor*page.getWidth()), Math.round(zoomFactor*page.getHeight()));
Point sz = getSize();
if (sz.x != newW || sz.y != newH) {
sz.x = newW;
sz.y = newH;
resize = true;
}
if (sz.x + sz.y == 0) {
// no image to draw.
return;
}
// calculate the clipping rectangle in page space from the
// desired clip in screen space.
Rectangle2D useClip = clip;
if (clip != null && currentXform != null) {
useClip = currentXform.createTransformedShape(clip).getBounds2D();
}
Dimension pageSize = page.getUnstretchedSize(sz.x, sz.y, useClip);
ImageInfo info = new ImageInfo(pageSize.width, pageSize.height, useClip, null);
currentImage = new RefImage(pageSize.width, pageSize.height, BufferedImage.TYPE_INT_ARGB);
Rectangle rect = new Rectangle(0, 0, pageSize.width, pageSize.height);
PDFRenderer r =
new PDFRenderer(
page, ((BufferedImage) currentImage).createGraphics(), rect, useClip, Color.WHITE);
page.renderers.put(info, new WeakReference<PDFRenderer>(r));
// get the new image
/*currentImage = page.getImage(pageSize.width, pageSize.height,
useClip, this, true, false);*/
// calculate the transform from screen to page space
currentXform = page.getInitialTransform(pageSize.width, pageSize.height, useClip);
try {
currentXform = currentXform.createInverse();
} catch (NoninvertibleTransformException nte) {
System.out.println("Error inverting page transform!");
nte.printStackTrace();
}
prevClip = useClip;
prevSize = pageSize;
r.go(true);
if (r.getStatus() != Watchable.COMPLETED) return;
if (resize)
// Resize triggers repaint
setSize(
Math.round(zoomFactor * page.getWidth()), Math.round(zoomFactor * page.getHeight()));
else {
EventQueue.invokeLater(
new Runnable() {
@Override
public void run() {
// canvas.repaint();
}
});
}
}
}
public void highlight(double x, double y, double x2, double y2) {
Rectangle2D r = new Double(x, currentPage.getHeight() - y2, x2 - x, y2 - y);
highlight = convertPDF2ImageCoord(r);
}
