com.lowagie.text.pdf.PdfGState Java Examples
The following examples show how to use
com.lowagie.text.pdf.PdfGState.
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Example #1
| Source File: PdfContext.java From geomajas-project-server with GNU Affero General Public License v3.0 | 6 votes |
|
/**
* Draws the specified image with the first rectangle's bounds, clipping with the second one.
*
* @param img image
* @param rect rectangle
* @param clipRect clipping bounds
* @param opacity opacity of the image (1 = opaque, 0= transparent)
*/
public void drawImage(Image img, Rectangle rect, Rectangle clipRect, float opacity) {
try {
template.saveState();
// opacity
PdfGState state = new PdfGState();
state.setFillOpacity(opacity);
state.setBlendMode(PdfGState.BM_NORMAL);
template.setGState(state);
// clipping code
if (clipRect != null) {
template.rectangle(clipRect.getLeft() + origX, clipRect.getBottom() + origY, clipRect.getWidth(),
clipRect.getHeight());
template.clip();
template.newPath();
}
template.addImage(img, rect.getWidth(), 0, 0, rect.getHeight(), origX + rect.getLeft(), origY
+ rect.getBottom());
} catch (DocumentException e) {
log.warn("could not draw image", e);
} finally {
template.restoreState();
}
}
Example #2
| Source File: GroupsTest.java From itext2 with GNU Lesser General Public License v3.0 | 5 votes |
|
/**
* Prints 3 circles in different colors that intersect with eachother.
* @param x
* @param y
* @param cb
* @throws Exception
*/
public static void pictureCircles(float x, float y, PdfContentByte cb) throws Exception {
PdfGState gs = new PdfGState();
gs.setBlendMode(PdfGState.BM_SOFTLIGHT);
gs.setFillOpacity(0.7f);
cb.setGState(gs);
cb.setColorFill(Color.gray);
cb.circle(x + 70, y + 70, 50);
cb.fill();
cb.circle(x + 100, y + 130, 50);
cb.fill();
cb.circle(x + 130, y + 70, 50);
cb.fill();
}
Example #3
| Source File: PdfWatermarkUtils.java From bamboobsc with Apache License 2.0 | 5 votes |
|
public static void addWatermark(PdfStamper pdfStamper, BaseFont baseFont, Color fontColor, String waterMarkString) throws Exception {
if (null == pdfStamper || null == baseFont) {
throw new java.lang.Exception("PdfStamper or BaseFont is null.");
}
if (StringUtils.isBlank(waterMarkString)) {
return;
}
PdfContentByte pdfContentByte = null;
Rectangle pageRect = null;
PdfGState pdfGState = new PdfGState();
// 设置透明度为0.4
pdfGState.setFillOpacity(0.4f);
pdfGState.setStrokeOpacity(0.4f);
int pageNum = pdfStamper.getReader().getNumberOfPages();
try {
for (int i = 1; i <= pageNum; i++) {
pageRect = pdfStamper.getReader().getPageSizeWithRotation(i);
// 计算水印X,Y坐标
float x = pageRect.getWidth() / 2;
float y = pageRect.getHeight() / 2;
//获得PDF最顶层
pdfContentByte = pdfStamper.getOverContent(i);
pdfContentByte.saveState();
// set Transparency
pdfContentByte.setGState(pdfGState);
pdfContentByte.beginText();
pdfContentByte.setColorFill(fontColor);
pdfContentByte.setFontAndSize(baseFont, 60);
// 水印文字成45度角倾斜
pdfContentByte.showTextAligned(Element.ALIGN_CENTER, waterMarkString, x, y, 45);
pdfContentByte.endText();
}
} catch (Exception e) {
e.printStackTrace();
} finally {
pdfContentByte = null;
pageRect = null;
}
}
Example #4
| Source File: PdfContext.java From geomajas-project-server with GNU Affero General Public License v3.0 | 5 votes |
|
private void setStroke(Color color, float linewidth, float[] dashArray) {
// Color and transparency
PdfGState state = new PdfGState();
state.setStrokeOpacity(color.getAlpha());
state.setBlendMode(PdfGState.BM_NORMAL);
template.setGState(state);
template.setColorStroke(color);
// linewidth
template.setLineWidth(linewidth);
if (dashArray != null) {
template.setLineDash(dashArray, 0f);
}
}
Example #5
| Source File: PdfContext.java From geomajas-project-server with GNU Affero General Public License v3.0 | 5 votes |
|
private void setFill(Color color) {
// Color and transparency
PdfGState state = new PdfGState();
state.setFillOpacity(color.getAlpha() / 255f);
state.setBlendMode(PdfGState.BM_NORMAL);
template.setGState(state);
template.setColorFill(color);
}
Example #6
| Source File: PdfXConformanceImp.java From gcs with Mozilla Public License 2.0 | 4 votes |
|
/**
* Business logic that checks if a certain object is in conformance with PDF/X.
* @param writer the writer that is supposed to write the PDF/X file
* @param key the type of PDF/X conformance that has to be checked
* @param obj1 the object that is checked for conformance
*/
public static void checkPDFXConformance(PdfWriter writer, int key, Object obj1) {
if (writer == null || !writer.isPdfX())
return;
int conf = writer.getPDFXConformance();
switch (key) {
case PDFXKEY_COLOR:
switch (conf) {
case PdfWriter.PDFX1A2001:
if (obj1 instanceof ExtendedColor) {
ExtendedColor ec = (ExtendedColor)obj1;
switch (ec.getType()) {
case ExtendedColor.TYPE_CMYK:
case ExtendedColor.TYPE_GRAY:
return;
case ExtendedColor.TYPE_RGB:
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
case ExtendedColor.TYPE_SEPARATION:
SpotColor sc = (SpotColor)ec;
checkPDFXConformance(writer, PDFXKEY_COLOR, sc.getPdfSpotColor().getAlternativeCS());
break;
case ExtendedColor.TYPE_SHADING:
ShadingColor xc = (ShadingColor)ec;
checkPDFXConformance(writer, PDFXKEY_COLOR, xc.getPdfShadingPattern().getShading().getColorSpace());
break;
case ExtendedColor.TYPE_PATTERN:
PatternColor pc = (PatternColor)ec;
checkPDFXConformance(writer, PDFXKEY_COLOR, pc.getPainter().getDefaultColor());
break;
}
}
else if (obj1 instanceof Color)
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
break;
}
break;
case PDFXKEY_CMYK:
break;
case PDFXKEY_RGB:
if (conf == PdfWriter.PDFX1A2001)
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
break;
case PDFXKEY_FONT:
if (!((BaseFont)obj1).isEmbedded())
throw new PdfXConformanceException("All the fonts must be embedded. This one isn't: " + ((BaseFont)obj1).getPostscriptFontName());
break;
case PDFXKEY_IMAGE:
PdfImage image = (PdfImage)obj1;
if (image.get(PdfName.SMASK) != null)
throw new PdfXConformanceException("The /SMask key is not allowed in images.");
switch (conf) {
case PdfWriter.PDFX1A2001:
PdfObject cs = image.get(PdfName.COLORSPACE);
if (cs == null)
return;
if (cs.isName()) {
if (PdfName.DEVICERGB.equals(cs))
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
}
else if (cs.isArray()) {
if (PdfName.CALRGB.equals(((PdfArray)cs).getPdfObject(0)))
throw new PdfXConformanceException("Colorspace CalRGB is not allowed.");
}
break;
}
break;
case PDFXKEY_GSTATE:
PdfDictionary gs = (PdfDictionary)obj1;
PdfObject obj = gs.get(PdfName.BM);
if (obj != null && !PdfGState.BM_NORMAL.equals(obj) && !PdfGState.BM_COMPATIBLE.equals(obj))
throw new PdfXConformanceException("Blend mode " + obj.toString() + " not allowed.");
obj = gs.get(PdfName.CA);
double v = 0.0;
if (obj != null && (v = ((PdfNumber)obj).doubleValue()) != 1.0)
throw new PdfXConformanceException("Transparency is not allowed: /CA = " + v);
obj = gs.get(PdfName.ca);
v = 0.0;
if (obj != null && (v = ((PdfNumber)obj).doubleValue()) != 1.0)
throw new PdfXConformanceException("Transparency is not allowed: /ca = " + v);
break;
case PDFXKEY_LAYER:
throw new PdfXConformanceException("Layers are not allowed.");
}
}
Example #7
| Source File: PdfXConformanceImp.java From itext2 with GNU Lesser General Public License v3.0 | 4 votes |
|
/**
* Business logic that checks if a certain object is in conformance with PDF/X.
* @param writer the writer that is supposed to write the PDF/X file
* @param key the type of PDF/X conformance that has to be checked
* @param obj1 the object that is checked for conformance
*/
public static void checkPDFXConformance(PdfWriter writer, int key, Object obj1) {
if (writer == null || !writer.isPdfX())
return;
int conf = writer.getPDFXConformance();
switch (key) {
case PDFXKEY_COLOR:
switch (conf) {
case PdfWriter.PDFX1A2001:
if (obj1 instanceof ExtendedColor) {
ExtendedColor ec = (ExtendedColor)obj1;
switch (ec.getType()) {
case ExtendedColor.TYPE_CMYK:
case ExtendedColor.TYPE_GRAY:
return;
case ExtendedColor.TYPE_RGB:
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
case ExtendedColor.TYPE_SEPARATION:
SpotColor sc = (SpotColor)ec;
checkPDFXConformance(writer, PDFXKEY_COLOR, sc.getPdfSpotColor().getAlternativeCS());
break;
case ExtendedColor.TYPE_SHADING:
ShadingColor xc = (ShadingColor)ec;
checkPDFXConformance(writer, PDFXKEY_COLOR, xc.getPdfShadingPattern().getShading().getColorSpace());
break;
case ExtendedColor.TYPE_PATTERN:
PatternColor pc = (PatternColor)ec;
checkPDFXConformance(writer, PDFXKEY_COLOR, pc.getPainter().getDefaultColor());
break;
}
}
else if (obj1 instanceof Color)
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
break;
}
break;
case PDFXKEY_CMYK:
break;
case PDFXKEY_RGB:
if (conf == PdfWriter.PDFX1A2001)
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
break;
case PDFXKEY_FONT:
if (!((BaseFont)obj1).isEmbedded())
throw new PdfXConformanceException("All the fonts must be embedded. This one isn't: " + ((BaseFont)obj1).getPostscriptFontName());
break;
case PDFXKEY_IMAGE:
PdfImage image = (PdfImage)obj1;
if (image.get(PdfName.SMASK) != null)
throw new PdfXConformanceException("The /SMask key is not allowed in images.");
switch (conf) {
case PdfWriter.PDFX1A2001:
PdfObject cs = image.get(PdfName.COLORSPACE);
if (cs == null)
return;
if (cs.isName()) {
if (PdfName.DEVICERGB.equals(cs))
throw new PdfXConformanceException("Colorspace RGB is not allowed.");
}
else if (cs.isArray()) {
if (PdfName.CALRGB.equals(((PdfArray)cs).getPdfObject(0)))
throw new PdfXConformanceException("Colorspace CalRGB is not allowed.");
}
break;
}
break;
case PDFXKEY_GSTATE:
PdfDictionary gs = (PdfDictionary)obj1;
PdfObject obj = gs.get(PdfName.BM);
if (obj != null && !PdfGState.BM_NORMAL.equals(obj) && !PdfGState.BM_COMPATIBLE.equals(obj))
throw new PdfXConformanceException("Blend mode " + obj.toString() + " not allowed.");
obj = gs.get(PdfName.CA);
double v = 0.0;
if (obj != null && (v = ((PdfNumber)obj).doubleValue()) != 1.0)
throw new PdfXConformanceException("Transparency is not allowed: /CA = " + v);
obj = gs.get(PdfName.ca);
v = 0.0;
if (obj != null && (v = ((PdfNumber)obj).doubleValue()) != 1.0)
throw new PdfXConformanceException("Transparency is not allowed: /ca = " + v);
break;
case PDFXKEY_LAYER:
throw new PdfXConformanceException("Layers are not allowed.");
}
}
Example #8
| Source File: GStateTest.java From itext2 with GNU Lesser General Public License v3.0 | 4 votes |
|
/**
* Changing the Graphics State with PdfGState.
*
*/
@Test
public void main() throws Exception {
// step 1: creation of a document-object
Document document = new Document();
try {
// step 2:
// we create a writer that listens to the document
// and directs a PDF-stream to a file
PdfWriter writer = PdfWriter.getInstance(document,
PdfTestBase.getOutputStream( "gstate.pdf"));
// step 3: we open the document
document.open();
// step 4: we grab the ContentByte and do some stuff with it
PdfContentByte cb = writer.getDirectContent();
PdfGState gs = new PdfGState();
gs.setFillOpacity(0.5f);
cb.setGState(gs);
cb.setColorFill(Color.red);
cb.circle(260.0f, 500.0f, 250.0f);
cb.fill();
cb.circle(260.0f, 500.0f, 200.0f);
cb.fill();
cb.circle(260.0f, 500.0f, 150.0f);
cb.fill();
gs.setFillOpacity(0.2f);
cb.setGState(gs);
cb.setColorFill(Color.blue);
cb.circle(260.0f, 500.0f, 100.0f);
cb.fill();
cb.circle(260.0f, 500.0f, 50.0f);
cb.fill();
cb.sanityCheck();
} catch (DocumentException de) {
System.err.println(de.getMessage());
} catch (IOException ioe) {
System.err.println(ioe.getMessage());
}
// step 5: we close the document
document.close();
}
