Java PDColor类代码示例

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
@Override
public boolean equals(Object object) {
  // If the object is an PDColor, compare the rgb arrays.
  if (object instanceof PDColor) {
    PDColor color = (PDColor) object;
    float[] components = color.getComponents();
    PDColorSpace colorSpace = color.getColorSpace();
    if (colorSpace != null) {
      try {
        float[] rgb = colorSpace.toRGB(components);
        return Arrays.equals(rgb, this.rgb);
      } catch (IOException e) {
        return false;
      }
    }
    return false;
  } else if (object instanceof PdfColor) {
    return object == this;
  } else {
    return false;
  }
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
private void applyTexturePaint(TexturePaint texturePaint) throws IOException {
	Rectangle2D anchorRect = texturePaint.getAnchorRect();
	PDTilingPattern pattern = new PDTilingPattern();
	pattern.setPaintType(PDTilingPattern.PAINT_COLORED);
	pattern.setTilingType(PDTilingPattern.TILING_CONSTANT_SPACING_FASTER_TILING);

	pattern.setBBox(new PDRectangle((float) anchorRect.getX(), (float) anchorRect.getY(),
			(float) anchorRect.getWidth(), (float) anchorRect.getHeight()));
	pattern.setXStep((float) anchorRect.getWidth());
	pattern.setYStep((float) anchorRect.getHeight());

	AffineTransform patternTransform = new AffineTransform();
	patternTransform.translate(0, anchorRect.getHeight());
	patternTransform.scale(1f, -1f);
	pattern.setMatrix(patternTransform);

	PDAppearanceStream appearance = new PDAppearanceStream(document);
	appearance.setResources(pattern.getResources());
	appearance.setBBox(pattern.getBBox());

	PDPageContentStream imageContentStream = new PDPageContentStream(document, appearance,
			((COSStream) pattern.getCOSObject()).createOutputStream());
	BufferedImage texturePaintImage = texturePaint.getImage();
	PDImageXObject imageXObject = imageEncoder.encodeImage(document, imageContentStream, texturePaintImage);

	float ratioW = (float) ((anchorRect.getWidth()) / texturePaintImage.getWidth());
	float ratioH = (float) ((anchorRect.getHeight()) / texturePaintImage.getHeight());
	float paintHeight = (texturePaintImage.getHeight()) * ratioH;
	imageContentStream.drawImage(imageXObject, (float) anchorRect.getX(), (float) (paintHeight + anchorRect.getY()),
			texturePaintImage.getWidth() * ratioW, -paintHeight);
	imageContentStream.close();

	PDColorSpace patternCS1 = new PDPattern(null, imageXObject.getColorSpace());
	COSName tilingPatternName = resources.add(pattern);
	PDColor patternColor = new PDColor(tilingPatternName, patternCS1);

	contentStream.setNonStrokingColor(patternColor);
	contentStream.setStrokingColor(patternColor);
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
private static String getColorString(PDColor c) {
	String colorString = "";
//ccheck suitable for getcomponents	
	float[] rgb = c.getComponents();
	if (rgb.length == 1) {
	    int grey = (int) rgb[0] * 255;
	    colorString = Integer.toHexString(grey);
	    if (colorString.length() == 1) {
	        colorString = "0" + colorString;
	    }
	    colorString = colorString + colorString + colorString;
	} else {
   		for (int colorIndex=0; colorIndex<3; colorIndex++) {
   		    int color = (int) rgb[colorIndex] * 255;
   		    String s = Integer.toHexString(color);
   		    if (s.length() == 1) {
   		        s = "0" + s;
   		    }
   		    colorString += s;
   		}
	}
	
	return "#" + colorString;
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
/**
 * Transforms the given color to rgb array.
 */
public static float[] toRGB(PDColor color) {
  try {
    float[] components = color.getComponents();
    PDColorSpace colorSpace = color.getColorSpace();
    if (colorSpace != null) {
        return colorSpace.toRGB(components);
    }
  } catch (Exception e) {
    return null;
  }
  return null;
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
/**
 * Sets the stroking color and, if necessary, the stroking color space.
 *
 * @param color
 *        Color in a specific color space.
 * @throws IOException
 *         If an IO error occurs while writing to the stream.
 */
public void setStrokingColor (final PDColor color) throws IOException
{
  if (strokingColorSpaceStack.isEmpty () || strokingColorSpaceStack.peek () != color.getColorSpace ())
  {
    writeOperand (getName (color.getColorSpace ()));
    writeOperator ((byte) 'C', (byte) 'S');

    if (strokingColorSpaceStack.isEmpty ())
    {
      strokingColorSpaceStack.add (color.getColorSpace ());
    }
    else
    {
      strokingColorSpaceStack.set (nonStrokingColorSpaceStack.size () - 1, color.getColorSpace ());
    }
  }

  for (final float value : color.getComponents ())
  {
    writeOperand (value);
  }

  if (color.getColorSpace () instanceof PDPattern)
  {
    writeOperand (color.getPatternName ());
  }

  if (color.getColorSpace () instanceof PDPattern ||
      color.getColorSpace () instanceof PDSeparation ||
      color.getColorSpace () instanceof PDDeviceN ||
      color.getColorSpace () instanceof PDICCBased)
  {
    writeOperator ((byte) 'S', (byte) 'C', (byte) 'N');
  }
  else
  {
    writeOperator ((byte) 'S', (byte) 'C');
  }
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
/**
 * Sets the non-stroking color and, if necessary, the non-stroking color
 * space.
 *
 * @param color
 *        Color in a specific color space.
 * @throws IOException
 *         If an IO error occurs while writing to the stream.
 */
public void setNonStrokingColor (final PDColor color) throws IOException
{
  if (nonStrokingColorSpaceStack.isEmpty () || nonStrokingColorSpaceStack.peek () != color.getColorSpace ())
  {
    writeOperand (getName (color.getColorSpace ()));
    writeOperator ((byte) 'c', (byte) 's');

    if (nonStrokingColorSpaceStack.isEmpty ())
    {
      nonStrokingColorSpaceStack.add (color.getColorSpace ());
    }
    else
    {
      nonStrokingColorSpaceStack.set (nonStrokingColorSpaceStack.size () - 1, color.getColorSpace ());
    }
  }

  for (final float value : color.getComponents ())
  {
    writeOperand (value);
  }

  if (color.getColorSpace () instanceof PDPattern)
  {
    writeOperand (color.getPatternName ());
  }

  if (color.getColorSpace () instanceof PDPattern ||
      color.getColorSpace () instanceof PDSeparation ||
      color.getColorSpace () instanceof PDDeviceN ||
      color.getColorSpace () instanceof PDICCBased)
  {
    writeOperator ((byte) 's', (byte) 'c', (byte) 'n');
  }
  else
  {
    writeOperator ((byte) 's', (byte) 'c');
  }
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
private void applyShadingAsColor(PDShading shading) throws IOException {
	/*
	 * If the paint has a shading we must create a tiling pattern and set
	 * that as stroke color...
	 */
	PDTilingPattern pattern = new PDTilingPattern();
	pattern.setPaintType(PDTilingPattern.PAINT_COLORED);
	pattern.setTilingType(PDTilingPattern.TILING_CONSTANT_SPACING_FASTER_TILING);
	PDRectangle anchorRect = bbox;
	pattern.setBBox(anchorRect);
	pattern.setXStep(anchorRect.getWidth());
	pattern.setYStep(anchorRect.getHeight());

	PDAppearanceStream appearance = new PDAppearanceStream(this.document);
	appearance.setResources(pattern.getResources());
	appearance.setBBox(pattern.getBBox());

	PDPageContentStream imageContentStream = new PDPageContentStream(document, appearance,
			((COSStream) pattern.getCOSObject()).createOutputStream());
	imageContentStream.addRect(0, 0, anchorRect.getWidth(), anchorRect.getHeight());
	imageContentStream.clip();
	imageContentStream.shadingFill(shading);
	imageContentStream.close();

	PDColorSpace patternCS1 = new PDPattern(null);
	COSName tilingPatternName = xFormObject.getResources().add(pattern);
	PDColor patternColor = new PDColor(tilingPatternName, patternCS1);

	contentStream.setNonStrokingColor(patternColor);
	contentStream.setStrokingColor(patternColor);
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
@Override
public PDColor mapColor(PDPageContentStream contentStream, Color color) {
	if (color == null)
		return new PDColor(new float[] { 1f, 1f, 1f }, PDDeviceRGB.INSTANCE);
	float[] components = new float[] { color.getRed() / 255f, color.getGreen() / 255f, color.getBlue() / 255f };
	return new PDColor(components, PDDeviceRGB.INSTANCE);
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
private PDShading buildLinearGradientShading(Paint paint, AffineTransform tf) throws IOException {
	/*
	 * Batik has a copy of RadialGradientPaint, but it has the same structure as the
	 * AWT RadialGradientPaint. So we use Reflection to access the fields of both
	 * these classes.
	 */
	Color[] colors = getPropertyValue(paint, "getColors");
	Color firstColor = colors[0];
	PDColor firstColorMapped = colorMapper.mapColor(contentStream, firstColor);
	applyAsStrokingColor(firstColor);

	PDShadingType3 shading = new PDShadingType3(new COSDictionary());
	shading.setShadingType(PDShading.SHADING_TYPE2);
	shading.setColorSpace(firstColorMapped.getColorSpace());
	float[] fractions = getPropertyValue(paint, "getFractions");
	Point2D startPoint = getPropertyValue(paint, "getStartPoint");
	Point2D endPoint = getPropertyValue(paint, "getEndPoint");
	AffineTransform gradientTransform = getPropertyValue(paint, "getTransform");
	tf.concatenate(gradientTransform);

	tf.transform(startPoint, startPoint);
	tf.transform(endPoint, endPoint);

	COSArray coords = new COSArray();
	coords.add(new COSFloat((float) startPoint.getX()));
	coords.add(new COSFloat((float) startPoint.getY()));
	coords.add(new COSFloat((float) endPoint.getX()));
	coords.add(new COSFloat((float) endPoint.getY()));
	shading.setCoords(coords);

	PDFunctionType3 type3 = buildType3Function(colors, fractions);

	COSArray extend = new COSArray();
	extend.add(COSBoolean.TRUE);
	extend.add(COSBoolean.TRUE);
	shading.setFunction(type3);
	shading.setExtend(extend);
	return shading;
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
private PDShading buildGradientShading(AffineTransform tf, GradientPaint gradientPaint) throws IOException {
	Color[] colors = new Color[] { gradientPaint.getColor1(), gradientPaint.getColor2() };
	Color firstColor = colors[0];
	PDColor firstColorMapped = colorMapper.mapColor(contentStream, firstColor);

	applyAsStrokingColor(firstColor);

	PDShadingType3 shading = new PDShadingType3(new COSDictionary());
	shading.setShadingType(PDShading.SHADING_TYPE2);
	shading.setColorSpace(firstColorMapped.getColorSpace());
	float[] fractions = new float[] { 0, 1 };
	Point2D startPoint = gradientPaint.getPoint1();
	Point2D endPoint = gradientPaint.getPoint2();

	tf.transform(startPoint, startPoint);
	tf.transform(endPoint, endPoint);

	COSArray coords = new COSArray();
	coords.add(new COSFloat((float) startPoint.getX()));
	coords.add(new COSFloat((float) startPoint.getY()));
	coords.add(new COSFloat((float) endPoint.getX()));
	coords.add(new COSFloat((float) endPoint.getY()));
	shading.setCoords(coords);

	PDFunctionType3 type3 = buildType3Function(colors, fractions);

	COSArray extend = new COSArray();
	extend.add(COSBoolean.TRUE);
	extend.add(COSBoolean.TRUE);

	shading.setFunction(type3);
	shading.setExtend(extend);
	return shading;
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
/**
 * This constructor is used by spring when creating a font from properties.
 *
 * @param config e.g. 10,Times-Roman,#000000
 */
public PdfTextStyle(String config) {
    Assert.hasText(config);
    String[] split = config.split(",");
    Assert.isTrue(split.length == 3, "config must look like: 10,Times-Roman,#000000");
    fontSize = Float.parseFloat(split[0]);
    font = PdfFont.getFont(split[1]);
    Color tempColor = new Color(Integer.valueOf(split[2].substring(1), 16));
    float[] components = {tempColor.getRed(), tempColor.getGreen(), tempColor.getBlue()};
    color = new PDColor(components, PDDeviceRGB.INSTANCE);
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
@Test
public void fromConstructor() {
    PdfTextStyle config = new PdfTextStyle("10.5,Times-Roman,#000000");

    PDColor black = new PDColor(new float[] {0.0f, 0.0f, 0.0f}, PDDeviceRGB.INSTANCE);

    Assert.assertEquals(10.5, config.getFontSize(), delta);
    Assert.assertEquals("Times-Roman", config.getFont().getBasename());
    Assert.assertEquals(black.getColorSpace(), config.getColor().getColorSpace());
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
@Test
public void testFloatSize() {
    float fontSize = 10.5f;
    PDColor red = new PDColor(new float[] {1.0f, 0.0f, 0.0f}, PDDeviceRGB.INSTANCE);
    PdfTextStyle config = new PdfTextStyle(fontSize, PdfFont.TIMES_ROMAN, red, "regular");

    Assert.assertEquals(fontSize, config.getFontSize(), delta);
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
@Test
public void testTextWidth() {
    float fontSize = 0.5f;
    PDColor black = new PDColor(new float[] {0.0f, 0.0f, 0.0f}, PDDeviceRGB.INSTANCE);
    PdfTextStyle config = new PdfTextStyle(fontSize, PdfFont.COURIER, black, "bold");

    Float textWidth = PdfBoxHelper.getTextWidth(config.getCurrentFontStyle(), config.getFontSize(), "Some text");

    Assert.assertTrue(textWidth > 0);
}
 

import org.apache.pdfbox.pdmodel.graphics.color.PDColor; //导入依赖的package包/类
@Override
public void process(Operator operator, List<COSBase> arguments)
  throws IOException {
  PDColorSpace colorSpace = getColorSpace();
  if (colorSpace instanceof PDDeviceColorSpace 
      && arguments.size() < colorSpace.getNumberOfComponents()) {
    throw new MissingOperandException(operator, arguments);
  }
  COSArray array = new COSArray();
  array.addAll(arguments);
  setColor(new PDColor(array, colorSpace));
}