List of usage examples for org.apache.pdfbox.util Matrix Matrix
public Matrix()
From source file:edu.umass.cs.iesl.pdf2meta.cli.extract.pdfbox.pagedrawer.BeginInlineImage.java
License:Apache License
/** * process : BI : begin inline image.//from www .j ava 2s . c o m * @param operator The operator that is being executed. * @param arguments List * @throws java.io.IOException If there is an error displaying the inline image. */ public void process(PDFOperator operator, List<COSBase> arguments) throws IOException { GraphicsAwarePDFStreamEngine drawer = (GraphicsAwarePDFStreamEngine) context; PDPage page = drawer.getPage(); //begin inline image object ImageParameters params = operator.getImageParameters(); PDInlinedImage image = new PDInlinedImage(); image.setImageParameters(params); image.setImageData(operator.getImageData()); BufferedImage awtImage = image.createImage(context.getColorSpaces()); if (awtImage == null) { log.warn("BeginInlineImage.process(): createImage returned NULL"); return; } int imageWidth = awtImage.getWidth(); int imageHeight = awtImage.getHeight(); double pageHeight = drawer.getPageSize().getHeight(); Matrix ctm = drawer.getGraphicsState().getCurrentTransformationMatrix(); int pageRotation = page.findRotation(); AffineTransform ctmAT = ctm.createAffineTransform(); ctmAT.scale(1f / imageWidth, 1f / imageHeight); Matrix rotationMatrix = new Matrix(); rotationMatrix.setFromAffineTransform(ctmAT); // calculate the inverse rotation angle // scaleX = m00 = cos // shearX = m01 = -sin // tan = sin/cos double angle = Math.atan(ctmAT.getShearX() / ctmAT.getScaleX()); Matrix translationMatrix = null; if (pageRotation == 0 || pageRotation == 180) { translationMatrix = Matrix.getTranslatingInstance((float) (Math.sin(angle) * ctm.getXScale()), (float) (pageHeight - 2 * ctm.getYPosition() - Math.cos(angle) * ctm.getYScale())); } else if (pageRotation == 90 || pageRotation == 270) { translationMatrix = Matrix.getTranslatingInstance((float) (Math.sin(angle) * ctm.getYScale()), (float) (pageHeight - 2 * ctm.getYPosition())); } rotationMatrix = rotationMatrix.multiply(translationMatrix); rotationMatrix.setValue(0, 1, (-1) * rotationMatrix.getValue(0, 1)); rotationMatrix.setValue(1, 0, (-1) * rotationMatrix.getValue(1, 0)); AffineTransform at = new AffineTransform(rotationMatrix.getValue(0, 0), rotationMatrix.getValue(0, 1), rotationMatrix.getValue(1, 0), rotationMatrix.getValue(1, 1), rotationMatrix.getValue(2, 0), rotationMatrix.getValue(2, 1)); drawer.drawImage(awtImage, at); }
From source file:org.elacin.pdfextract.datasource.pdfbox.PDFBoxIntegration.java
License:Apache License
/** * Old version/* ww w . j av a2s.co m*/ */ public void processEncodedText(@NotNull byte[] string) throws IOException { /* * Note on variable names. There are three different units being used * in this code. Character sizes are given in glyph units, text locations * are initially given in text units, and we want to save the data in * display units. The variable names should end with Text or Disp to * represent if the values are in text or disp units (no glyph units are saved). */ final float fontSizeText = getGraphicsState().getTextState().getFontSize(); final float horizontalScalingText = getGraphicsState().getTextState().getHorizontalScalingPercent() / 100f; // float verticalScalingText = horizontalScaling;//not sure if this is right but what else to // do??? final float riseText = getGraphicsState().getTextState().getRise(); final float wordSpacingText = getGraphicsState().getTextState().getWordSpacing(); final float characterSpacingText = getGraphicsState().getTextState().getCharacterSpacing(); /* * We won't know the actual number of characters until * we process the byte data(could be two bytes each) but * it won't ever be more than string.length*2(there are some cases * were a single byte will result in two output characters "fi" */ final PDFont font = getGraphicsState().getTextState().getFont(); /* * This will typically be 1000 but in the case of a type3 font this might be a different * number */ final float glyphSpaceToTextSpaceFactor; if (font instanceof PDType3Font) { PDMatrix fontMatrix = font.getFontMatrix(); float fontMatrixXScaling = fontMatrix.getValue(0, 0); glyphSpaceToTextSpaceFactor = 1.0f / fontMatrixXScaling; } else { glyphSpaceToTextSpaceFactor = /* 1.0f / */ 1000f; } float spaceWidthText = 0.0F; try { spaceWidthText = (font.getFontWidth(SPACE_BYTES, 0, 1) / glyphSpaceToTextSpaceFactor); } catch (Throwable exception) { log.warn(exception, exception); } if (spaceWidthText == 0.0F) { spaceWidthText = (font.getAverageFontWidth() / glyphSpaceToTextSpaceFactor); spaceWidthText *= .80f; } /* Convert textMatrix to display units */ final Matrix initialMatrix = new Matrix(); initialMatrix.setValue(0, 0, 1.0F); initialMatrix.setValue(0, 1, 0.0F); initialMatrix.setValue(0, 2, 0.0F); initialMatrix.setValue(1, 0, 0.0F); initialMatrix.setValue(1, 1, 1.0F); initialMatrix.setValue(1, 2, 0.0F); initialMatrix.setValue(2, 0, 0.0F); initialMatrix.setValue(2, 1, riseText); initialMatrix.setValue(2, 2, 1.0F); final Matrix ctm = getGraphicsState().getCurrentTransformationMatrix(); final Matrix dispMatrix = initialMatrix.multiply(ctm); Matrix textMatrixStDisp = getTextMatrix().multiply(dispMatrix); final float xScaleDisp = textMatrixStDisp.getXScale(); final float yScaleDisp = textMatrixStDisp.getYScale(); final float spaceWidthDisp = spaceWidthText * xScaleDisp * fontSizeText; final float wordSpacingDisp = wordSpacingText * xScaleDisp * fontSizeText; float maxVerticalDisplacementText = 0.0F; StringBuilder characterBuffer = new StringBuilder(string.length); int codeLength = 1; for (int i = 0; i < string.length; i += codeLength) { // Decode the value to a Unicode character codeLength = 1; String c = font.encode(string, i, codeLength); if ((c == null) && (i + 1 < string.length)) { // maybe a multibyte encoding codeLength++; c = font.encode(string, i, codeLength); } c = inspectFontEncoding(c); // todo, handle horizontal displacement // get the width and height of this character in text units float fontWidth = font.getFontWidth(string, i, codeLength) * 0.95f; if (fontWidth == 0.0f) { fontWidth = spaceWidthDisp; } float characterHorizontalDisplacementText = (fontWidth / glyphSpaceToTextSpaceFactor); maxVerticalDisplacementText = Math.max(maxVerticalDisplacementText, font.getFontHeight(string, i, codeLength) / glyphSpaceToTextSpaceFactor); if (maxVerticalDisplacementText <= 0.0f) { maxVerticalDisplacementText = font.getFontBoundingBox().getHeight() / glyphSpaceToTextSpaceFactor; } /** * PDF Spec - 5.5.2 Word Spacing * * Word spacing works the same was as character spacing, but applies * only to the space character, code 32. * * Note: Word spacing is applied to every occurrence of the single-byte * character code 32 in a string. This can occur when using a simple * font or a composite font that defines code 32 as a single-byte code. * It does not apply to occurrences of the byte value 32 in multiple-byte * codes. * * RDD - My interpretation of this is that only character code 32's that * encode to spaces should have word spacing applied. Cases have been * observed where a font has a space character with a character code * other than 32, and where word spacing (Tw) was used. In these cases, * applying word spacing to either the non-32 space or to the character * code 32 non-space resulted in errors consistent with this interpretation. */ float spacingText = characterSpacingText; if ((string[i] == (byte) 0x20) && (codeLength == 1)) { spacingText += wordSpacingText; } /* * The text matrix gets updated after each glyph is placed. The updated * version will have the X and Y coordinates for the next glyph. */ Matrix glyphMatrixStDisp = getTextMatrix().multiply(dispMatrix); // The adjustment will always be zero. The adjustment as shown in the // TJ operator will be handled separately. float adjustment = 0.0F; // TODO : tx should be set for horizontal text and ty for vertical text // which seems to be specified in the font (not the direction in the matrix). float tx = ((characterHorizontalDisplacementText - adjustment / glyphSpaceToTextSpaceFactor) * fontSizeText) * horizontalScalingText; Matrix td = new Matrix(); td.setValue(2, 0, tx); float ty = 0.0F; td.setValue(2, 1, ty); setTextMatrix(td.multiply(getTextMatrix())); Matrix glyphMatrixEndDisp = getTextMatrix().multiply(dispMatrix); float sx = spacingText * horizontalScalingText; Matrix sd = new Matrix(); sd.setValue(2, 0, sx); float sy = 0.0F; sd.setValue(2, 1, sy); setTextMatrix(sd.multiply(getTextMatrix())); float widthText = glyphMatrixEndDisp.getXPosition() - glyphMatrixStDisp.getXPosition(); characterBuffer.append(c); Matrix textMatrixEndDisp = glyphMatrixEndDisp; float totalVerticalDisplacementDisp = maxVerticalDisplacementText * fontSizeText * yScaleDisp; try { final ETextPosition text = new ETextPosition(page, textMatrixStDisp, textMatrixEndDisp, totalVerticalDisplacementDisp, new float[] { widthText }, spaceWidthDisp, characterBuffer.toString(), font, fontSizeText, (int) (fontSizeText * getTextMatrix().getXScale()), wordSpacingDisp); correctPosition(font, string, i, c, fontSizeText, glyphSpaceToTextSpaceFactor, horizontalScalingText, codeLength, text); processTextPosition(text); } catch (Exception e) { log.warn("LOG00570:Error adding '" + characterBuffer + "': " + e.getMessage()); } textMatrixStDisp = getTextMatrix().multiply(dispMatrix); characterBuffer.setLength(0); } }
From source file:org.fit.pdfdom.PDFBoxTree.java
License:Open Source License
/** * Transforms a length according to the current transformation matrix. *///from w ww.jav a 2 s . c om protected float transformLength(float w) { Matrix ctm = getGraphicsState().getCurrentTransformationMatrix(); Matrix m = new Matrix(); m.setValue(2, 0, w); return m.multiply(ctm).getTranslateX(); }
From source file:org.nmrfx.processor.gui.graphicsio.PDFWriter.java
License:Open Source License
public void showCenteredText(String message, double startX, double startY, String anchor, double rotate) throws GraphicsIOException, IllegalArgumentException { try {// w w w .j a va 2 s . com int aLen = anchor.length(); double xFrac = 0.0; double yFrac = 0.0; if (aLen > 0) { switch (anchor) { case "nw": xFrac = 0.0; yFrac = 1.0; break; case "n": xFrac = 0.5; yFrac = 1.0; break; case "ne": xFrac = 1.0; yFrac = 1.0; break; case "e": xFrac = 1.0; yFrac = 0.5; break; case "se": xFrac = 1.0; yFrac = 0.0; break; case "s": xFrac = 0.5; yFrac = 0.0; break; case "sw": xFrac = 0.0; yFrac = 0.0; break; case "w": xFrac = 0.0; yFrac = 0.5; break; default: throw new IllegalArgumentException("Invalid anchor \"" + anchor + "\""); } } font = PDType1Font.HELVETICA; float fontSize = 12; float stringWidth = font.getStringWidth(message) * fontSize / 1000f; PDFontDescriptor pdfFontDescriptor = font.getFontDescriptor(); float stringHeight = pdfFontDescriptor.getCapHeight() * fontSize / 1000f; float xOffset = -stringWidth * (float) xFrac; float yOffset = -stringHeight * (float) yFrac; contentStream.newLineAtOffset(tX(startX + xOffset), tY(startY - yOffset)); if (rotate != 0.0) { Matrix matrix = new Matrix(); matrix.translate(tX(startX), tY(startY)); matrix.rotate(rotate * Math.PI / 180.0); matrix.translate(xOffset, -yOffset); contentStream.setTextMatrix(matrix); } contentStream.showText(message); } catch (IOException ioE) { throw new GraphicsIOException(ioE.getMessage()); } }
From source file:Project.data.preparation.PrintImageLocation.java
public void processOperator(PDFOperator operator, List arguments) throws IOException { String operation = operator.getOperation(); if (operation.equals("Do")) { COSName objectName = (COSName) arguments.get(0); Map xobjects = getResources().getXObjects(); PDXObject xobject = (PDXObject) xobjects.get(objectName.getName()); if (xobject instanceof PDXObjectImage) { try { PDXObjectImage image = (PDXObjectImage) xobject; PDPage page = getCurrentPage(); Matrix ctm = getGraphicsState().getCurrentTransformationMatrix(); double rotationInRadians = (page.findRotation() * Math.PI) / 180; AffineTransform rotation = new AffineTransform(); rotation.setToRotation(rotationInRadians); AffineTransform rotationInverse = rotation.createInverse(); Matrix rotationInverseMatrix = new Matrix(); rotationInverseMatrix.setFromAffineTransform(rotationInverse); Matrix rotationMatrix = new Matrix(); rotationMatrix.setFromAffineTransform(rotation); Matrix unrotatedCTM = ctm.multiply(rotationInverseMatrix); float xScale = unrotatedCTM.getXScale(); float yScale = unrotatedCTM.getYScale(); double[] location = { unrotatedCTM.getXPosition(), unrotatedCTM.getYPosition() }; double[] size = { image.getWidth(), image.getHeight() }; location_xy.add(location); size_xy.add(size);/* w w w .j a v a 2s. c o m*/ setLocation_xy(location_xy); setSize_xy(size_xy); // System.out.println("Found image[" + objectName.getName() + "] " // + "at " + unrotatedCTM.getXPosition() + "," + unrotatedCTM.getYPosition() // // + " \t\tsize=" + (xScale / 100f * image.getWidth()) + "," + (yScale / 100f * image.getHeight()) // + " \t\tactual size=" + image.getWidth() + "," + image.getHeight()); } catch (NoninvertibleTransformException e) { throw new WrappedIOException(e); } } } else { super.processOperator(operator, arguments); } }