@Override
public void process(Operator operator, List<COSBase> operands) throws IOException {
COSNumber x = (COSNumber) operands.get(0);
COSNumber y = (COSNumber) operands.get(1);
Point2D.Float pos = context.transformedPoint(x.floatValue(), y.floatValue());
context.moveTo(pos.x, pos.y);
}
/**
* This will get the average font width for all characters.
*
* @return The width is in 1000 unit of text space, ie 333 or 777
* @throws IOException If an error occurs while parsing.
*/
public float getAverageFontWidth() throws IOException {
float average = 0.0f;
if (avgFontWidth != 0.0f) {
average = avgFontWidth;
} else {
float totalWidth = 0.0f;
float characterCount = 0.0f;
COSArray widths = (COSArray) font.getDictionaryObject(COSName.WIDTHS);
if (widths != null) {
for (int i = 0; i < widths.size(); i++) {
COSNumber fontWidth = (COSNumber) widths.getObject(i);
if (fontWidth.floatValue() > 0) {
totalWidth += fontWidth.floatValue();
characterCount += 1;
}
}
}
if (totalWidth > 0) {
average = totalWidth / characterCount;
} else {
average = getAverageFontWidthFromAFMFile();
}
avgFontWidth = average;
}
return average;
}
@Override
public void process(Operator operator, List<COSBase> arguments) throws MissingOperandException {
if (arguments.size() < 2) {
throw new MissingOperandException(operator, arguments);
}
Matrix textLineMatrix = context.getTextLineMatrix();
if (textLineMatrix == null) {
// LOG.warn("TextLineMatrix is null, " + getName() + " operator will be ignored");
return;
}
COSBase base0 = arguments.get(0);
COSBase base1 = arguments.get(1);
if (!(base0 instanceof COSNumber)) {
return;
}
if (!(base1 instanceof COSNumber)) {
return;
}
COSNumber x = (COSNumber) base0;
COSNumber y = (COSNumber) base1;
Matrix matrix = new Matrix(1, 0, 0, 1, x.floatValue(), y.floatValue());
textLineMatrix.concatenate(matrix);
context.setTextMatrix(textLineMatrix.clone());
}
@Override
public void process(Operator operator, List<COSBase> arguments) throws IOException {
if (arguments.size() == 0) {
throw new MissingOperandException(operator, arguments);
}
// there are some documents which are incorrectly structured, and have
// a wrong number of arguments to this, so we will assume the last argument
// in the list
Object charSpacing = arguments.get(arguments.size() - 1);
if (charSpacing instanceof COSNumber) {
COSNumber characterSpacing = (COSNumber) charSpacing;
context.getGraphicsState().getTextState().setCharacterSpacing(characterSpacing.floatValue());
}
}
/**
* rg Set color space for non stroking operations.
*
* @param operator The operator that is being executed.
* @param arguments List
* @throws IOException If an error occurs while processing the font.
*/
public void process(PDFOperator operator, List arguments) throws IOException {
super.process(operator, arguments);
PDFObjectExtractor drawer = (PDFObjectExtractor) context;
COSNumber r = (COSNumber) arguments.get(0);
COSNumber g = (COSNumber) arguments.get(1);
COSNumber b = (COSNumber) arguments.get(2);
drawer.setNonStrokingColor(new Color(r.floatValue(), g.floatValue(), b.floatValue()));
}
/**
* process : y : Append curved segment to path (final point replicated).
*
* @param operator The operator that is being executed.
* @param arguments List
*/
public void process(PDFOperator operator, List<COSBase> arguments) {
PageDrawer drawer = (PageDrawer) context;
COSNumber x1 = (COSNumber) arguments.get(0);
COSNumber y1 = (COSNumber) arguments.get(1);
COSNumber x3 = (COSNumber) arguments.get(2);
COSNumber y3 = (COSNumber) arguments.get(3);
Point2D point1 = drawer.transformedPoint(x1.doubleValue(), y1.doubleValue());
Point2D point3 = drawer.transformedPoint(x3.doubleValue(), y3.doubleValue());
drawer
.getLinePath()
.curveTo(
(float) point1.getX(),
(float) point1.getY(),
(float) point3.getX(),
(float) point3.getY(),
(float) point3.getX(),
(float) point3.getY());
}
/**
* This will get the maximum value of the range.
*
* @return The max value.
*/
public float getMax() {
COSNumber max = (COSNumber) rangeArray.getObject(startingIndex * 2 + 1);
return max.floatValue();
}
/**
* This will get the minimum value of the range.
*
* @return The min value.
*/
public float getMin() {
COSNumber min = (COSNumber) rangeArray.getObject(startingIndex * 2);
return min.floatValue();
}
/**
* Tr Set text rendering mode.
*
* @param operator The operator that is being executed.
* @param arguments List
* @throws IOException If an error occurs while processing the font.
*/
public void process(PDFOperator operator, List arguments) throws IOException {
COSNumber mode = (COSNumber) arguments.get(0);
context.getGraphicsState().getTextState().setRenderingMode(mode.intValue());
}
