/**
* Process the given tiling pattern. Allows the pattern matrix to be overridden for custom
* rendering.
*
* @param tilingPattern the tiling pattern
* @param color color to use, if this is an uncoloured pattern, otherwise null.
* @param colorSpace color space to use, if this is an uncoloured pattern, otherwise null.
* @param patternMatrix the pattern matrix, may be overridden for custom rendering.
* @throws IOException if there is an error reading or parsing the tiling pattern content stream.
*/
protected final void processTilingPattern(
PDTilingPattern tilingPattern, PDColor color, PDColorSpace colorSpace, Matrix patternMatrix)
throws IOException {
PDResources parent = pushResources(tilingPattern);
Matrix parentMatrix = initialMatrix;
initialMatrix = Matrix.concatenate(initialMatrix, patternMatrix);
// save the original graphics state
Stack<PDGraphicsState> savedStack = saveGraphicsStack();
// save a clean state (new clipping path, line path, etc.)
Rectangle2D bbox = tilingPattern.getBBox().transform(patternMatrix).getBounds2D();
PDRectangle rect =
new PDRectangle(
(float) bbox.getX(),
(float) bbox.getY(),
(float) bbox.getWidth(),
(float) bbox.getHeight());
graphicsStack.push(new PDGraphicsState(rect));
// non-colored patterns have to be given a color
if (colorSpace != null) {
color = new PDColor(color.getComponents(), colorSpace);
getGraphicsState().setNonStrokingColorSpace(colorSpace);
getGraphicsState().setNonStrokingColor(color);
getGraphicsState().setStrokingColorSpace(colorSpace);
getGraphicsState().setStrokingColor(color);
}
// transform the CTM using the stream's matrix
getGraphicsState().getCurrentTransformationMatrix().concatenate(patternMatrix);
// clip to bounding box
clipToRect(tilingPattern.getBBox());
// processStreamOperators(tilingPattern);
initialMatrix = parentMatrix;
restoreGraphicsStack(savedStack);
popResources(parent);
}
/**
* Process the given tiling pattern.
*
* @param tilingPattern the tiling pattern
* @param color color to use, if this is an uncoloured pattern, otherwise null.
* @param colorSpace color space to use, if this is an uncoloured pattern, otherwise null.
* @throws IOException if there is an error reading or parsing the tiling pattern content stream.
*/
protected final void processTilingPattern(
PDTilingPattern tilingPattern, PDColor color, PDColorSpace colorSpace) throws IOException {
processTilingPattern(tilingPattern, color, colorSpace, tilingPattern.getMatrix());
}
