PDFlib 8 Windows COM/.NET Tutorial

path = p.add_path_point( -1, 0, 100, "move", "");
path = p.add_path_point(path, 200, 100, "control", "");
path = p.add_path_point(path, 0, 100, "circular", "");
/* Visualize the path if desired */
p.draw_path(path, x, y, "stroke");
result = p.fit_textflow(tf, llx1, lly1, urx1, ury1,
"wrap={paths={" +
"{path=" + path + " refpoint={100% 50%} }" +
"}}");
p.delete_path(path);
Use the inversefill option to wrap text inside the path instead of wrapping the text
around the path (i.e. the path serves as text container instead of creating a hole in the
Textflow):
result = p.fit_textflow(tf, llx1, lly1, urx1, ury1,
"wrap={inversefill paths={" +
"{path=" + path + " refpoint={100% 50%} }" +
"}}");
Wrapping text around an image clipping path. TIFF and JPEG images can contain an
integrated clipping path. The path must have been created in an image processing
application and will be evaluated by PDFlib. If a default clipping path is found in the image
it will be used, but you can specify any other clipping path in the image with the
clippingpathname option of load_image( ). If the image has been loaded with a clipping
path you can extract the path and supply it to the wrap option fit_textflow( ) as above.
We also supply the scale option to enlarge the imported image clipping path:
image = p.load_image("auto", "image.tif", "clippingpathname={path 1}");
/* Create a path object from the image’s clipping path */
path = (int) p.info_image(image, "clippingpath", "");
if (path == -1)
throw new Exception("Error: clipping path not found!");
result = p.fit_textflow(tf, llx1, lly1, urx1, ury1,
"wrap={paths={{path=" + path + " refpoint={50% 50%} scale=2}}}");
p.delete_path(path);
Placing an image and wrapping text around it. While the previous section used only
the clipping path of an image (but not the image itself), let’s now place the image inside
the fitbox of the Textflow and wrap the text around it. In order to achieve this we must
again load the image with the clippingpathname option and place it on the page with fit_
image( ). In order to create the proper path object for wrapping the Textflow we call info_
image( ) with the same option list as fit_image( ). Finally, the reference point (the x/y parameters
of fit_image( )) must be supplied to the refpoint suboption of the paths suboption
of the wrap option:
image = p.load_image("auto", "image.tif", "clippingpathname={path 1}");
/* Place the image on the page with some fitting options */
224 Chapter 8: Text and Table Formatting (Edition for COM, .NET, and REALbasic)