private BufferedImage getImageIcon(String fileName) throws KettleException {
InputStream inputStream = null;
try {
BufferedImage image = ImageIO.read(new File(fileName));
if (image == null) {
image = ImageIO.read(new File("/" + fileName));
}
if (image == null) {
inputStream = getClass().getResourceAsStream(fileName);
if (inputStream == null) {
inputStream = getClass().getResourceAsStream("/" + fileName);
}
if (inputStream == null) {
throw new KettleException("Unable to load image from file : '" + fileName + "'");
}
image = ImageIO.read(inputStream);
}
WaitingImageObserver observer = new WaitingImageObserver(image);
observer.waitImageLoaded();
return image;
} catch (Throwable e) {
throw new KettleException("Unable to load image from file : '" + fileName + "'", e);
} finally {
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException e) {
throw new KettleException("Unable to close image reading stream", e);
}
}
}
}
protected boolean drawImage(
final RenderableReplacedContentBox content,
final Image image,
final com.lowagie.text.Image itextImage) {
final StyleSheet layoutContext = content.getStyleSheet();
final boolean shouldScale = layoutContext.getBooleanStyleProperty(ElementStyleKeys.SCALE);
final int x = (int) StrictGeomUtility.toExternalValue(content.getX());
final int y = (int) StrictGeomUtility.toExternalValue(content.getY());
final int width = (int) StrictGeomUtility.toExternalValue(content.getWidth());
final int height = (int) StrictGeomUtility.toExternalValue(content.getHeight());
if (width == 0 || height == 0) {
PdfLogicalPageDrawable.logger.debug("Error: Image area is empty: " + content);
return false;
}
final WaitingImageObserver obs = new WaitingImageObserver(image);
obs.waitImageLoaded();
final int imageWidth = image.getWidth(obs);
final int imageHeight = image.getHeight(obs);
if (imageWidth < 1 || imageHeight < 1) {
return false;
}
final Rectangle2D.Double drawAreaBounds = new Rectangle2D.Double(x, y, width, height);
final AffineTransform scaleTransform;
final Graphics2D g2;
if (shouldScale == false) {
double deviceScaleFactor = 1;
final double devResolution =
getMetaData().getNumericFeatureValue(OutputProcessorFeature.DEVICE_RESOLUTION);
if (getMetaData().isFeatureSupported(OutputProcessorFeature.IMAGE_RESOLUTION_MAPPING)) {
if (devResolution != 72.0 && devResolution > 0) {
// Need to scale the device to its native resolution before attempting to draw the image..
deviceScaleFactor = (72.0 / devResolution);
}
}
final int clipWidth = Math.min(width, (int) Math.ceil(deviceScaleFactor * imageWidth));
final int clipHeight = Math.min(height, (int) Math.ceil(deviceScaleFactor * imageHeight));
final ElementAlignment horizontalAlignment =
(ElementAlignment) layoutContext.getStyleProperty(ElementStyleKeys.ALIGNMENT);
final ElementAlignment verticalAlignment =
(ElementAlignment) layoutContext.getStyleProperty(ElementStyleKeys.VALIGNMENT);
final int alignmentX =
(int) RenderUtility.computeHorizontalAlignment(horizontalAlignment, width, clipWidth);
final int alignmentY =
(int) RenderUtility.computeVerticalAlignment(verticalAlignment, height, clipHeight);
g2 = (Graphics2D) getGraphics().create();
g2.clip(drawAreaBounds);
g2.translate(x, y);
g2.translate(alignmentX, alignmentY);
g2.clip(new Rectangle2D.Float(0, 0, clipWidth, clipHeight));
g2.scale(deviceScaleFactor, deviceScaleFactor);
scaleTransform = null;
} else {
g2 = (Graphics2D) getGraphics().create();
g2.clip(drawAreaBounds);
g2.translate(x, y);
g2.clip(new Rectangle2D.Float(0, 0, width, height));
final double scaleX;
final double scaleY;
final boolean keepAspectRatio =
layoutContext.getBooleanStyleProperty(ElementStyleKeys.KEEP_ASPECT_RATIO);
if (keepAspectRatio) {
final double scaleFactor =
Math.min(width / (double) imageWidth, height / (double) imageHeight);
scaleX = scaleFactor;
scaleY = scaleFactor;
} else {
scaleX = width / (double) imageWidth;
scaleY = height / (double) imageHeight;
}
final int clipWidth = (int) (scaleX * imageWidth);
final int clipHeight = (int) (scaleY * imageHeight);
final ElementAlignment horizontalAlignment =
(ElementAlignment) layoutContext.getStyleProperty(ElementStyleKeys.ALIGNMENT);
final ElementAlignment verticalAlignment =
(ElementAlignment) layoutContext.getStyleProperty(ElementStyleKeys.VALIGNMENT);
final int alignmentX =
(int) RenderUtility.computeHorizontalAlignment(horizontalAlignment, width, clipWidth);
final int alignmentY =
(int) RenderUtility.computeVerticalAlignment(verticalAlignment, height, clipHeight);
g2.translate(alignmentX, alignmentY);
scaleTransform = AffineTransform.getScaleInstance(scaleX, scaleY);
}
final PdfGraphics2D pdfGraphics2D = (PdfGraphics2D) g2;
pdfGraphics2D.drawPdfImage(itextImage, image, scaleTransform, null);
g2.dispose();
return true;
}
/**
* Helperfunction to extract an image from an imagereference. If the image is contained as
* java.awt.Image object only, the image is recoded into an PNG-Image.
*
* @param reference the image reference.
* @return an image.
* @throws com.lowagie.text.DocumentException if no PDFImageElement could be created using the
* given ImageReference.
* @throws java.io.IOException if the image could not be read.
*/
public Image getImage(final ImageContainer reference) throws DocumentException, IOException {
if (reference == null) {
throw new NullPointerException();
}
Object identity = null;
java.awt.Image image = null;
if (reference instanceof URLImageContainer) {
final URLImageContainer urlImageContainer = (URLImageContainer) reference;
final ResourceKey url = urlImageContainer.getResourceKey();
if (url != null && urlImageContainer.isLoadable()) {
identity = url;
final Image cached = (Image) cachedImages.get(identity);
if (cached != null) {
return cached;
}
try {
final ResourceData resourceData = resourceManager.load(url);
final byte[] data = resourceData.getResource(resourceManager);
final Image itextimage = Image.getInstance(data);
cachedImages.put(identity, itextimage);
return itextimage;
} catch (ResourceException re) {
RTFImageCache.logger.info("Caught illegal Image, will recode to PNG instead", re);
} catch (BadElementException be) {
RTFImageCache.logger.info("Caught illegal Image, will recode to PNG instead", be);
} catch (IOException ioe) {
RTFImageCache.logger.info(
"Unable to read the raw-data, will try to recode image-data.", ioe);
}
try {
final Resource resource = resourceManager.create(url, null, Image.class);
image = (java.awt.Image) resource.getResource();
} catch (ResourceException re) {
RTFImageCache.logger.info("Caught illegal Image, will try to find local instance", re);
}
}
}
if (reference instanceof LocalImageContainer && image == null) {
final LocalImageContainer localImageContainer = (LocalImageContainer) reference;
image = localImageContainer.getImage();
if (image != null) {
// check, if the content was cached ...
identity = localImageContainer.getIdentity();
if (identity != null) {
final Image cachedImage = (Image) cachedImages.get(identity);
if (cachedImage != null) {
return cachedImage;
}
}
}
}
if (image == null) {
return null;
}
final WaitingImageObserver obs = new WaitingImageObserver(image);
obs.waitImageLoaded();
try {
final byte[] data = RenderUtility.encodeImage(image);
final Image itextimage = Image.getInstance(data);
if (identity != null) {
cachedImages.put(identity, itextimage);
}
return itextimage;
} catch (UnsupportedEncoderException uee) {
logger.warn("Assertation-Failure: PNG encoding failed.", uee);
return null;
}
}
public void draw(final Graphics2D graphics2D, final Rectangle2D bounds) {
Graphics2D g = (Graphics2D) graphics2D.create();
g.setColor((Color) styleSheet.getStyleProperty(ElementStyleKeys.PAINT, Color.BLACK));
if (styleSheet.getBooleanStyleProperty(ElementStyleKeys.DRAW_SHAPE)) {
g.draw(bounds);
}
if (styleSheet.getBooleanStyleProperty(ElementStyleKeys.FILL_SHAPE)) {
Graphics2D g2 = (Graphics2D) g.create();
Color fillColor =
(Color) styleSheet.getStyleProperty(ElementStyleKeys.FILL_COLOR, Color.WHITE);
g2.setColor(fillColor);
g2.fill(bounds);
g2.dispose();
}
if (vectorImageBackground != null) {
Graphics2D g2 = (Graphics2D) g.create();
vectorImageBackground.draw(g2, bounds);
g2.dispose();
}
if (rasterImageBackground != null) {
Graphics2D g2 = (Graphics2D) g.create();
Image image = rasterImageBackground.getImage();
WaitingImageObserver obs = new WaitingImageObserver(image);
obs.waitImageLoaded();
g.setColor(Color.WHITE);
g.setBackground(Color.WHITE);
while (g2.drawImage(
image,
(int) bounds.getX(),
(int) bounds.getY(),
(int) bounds.getWidth(),
(int) bounds.getHeight(),
null)
== false) {
obs.waitImageLoaded();
if (obs.isError()) {
logger.warn("Error while loading the image during the rendering.");
break;
}
}
g2.dispose();
}
if (StringUtils.isEmpty(textToPrint) == false) {
AttributedCharacterIterator paragraph = new AttributedString(textToPrint).getIterator();
int paragraphStart = paragraph.getBeginIndex();
int paragraphEnd = paragraph.getEndIndex();
FontRenderContext frc = g.getFontRenderContext();
LineBreakMeasurer lineMeasurer = new LineBreakMeasurer(paragraph, frc);
float breakWidth = (float) bounds.getWidth();
float drawPosY = 0;
// Set position to the index of the first character in the paragraph.
lineMeasurer.setPosition(paragraphStart);
while (lineMeasurer.getPosition() < paragraphEnd) {
TextLayout layout = lineMeasurer.nextLayout(breakWidth).getJustifiedLayout(breakWidth);
float drawPosX = layout.isLeftToRight() ? 0 : breakWidth - layout.getAdvance();
drawPosY += layout.getAscent();
layout.draw(g, drawPosX, drawPosY);
drawPosY += layout.getDescent() + layout.getLeading();
}
}
}