PDFlib 8 Windows COM/.NET Tutorial

Long Distance Glider with sensational range!
Fig. 8.9 Fitting a text line using leaders
Generated output Option list for fit_textline( )
a)
Features of Giant Wing ....................................................
Description of Long Distance Glider.................................
Benefits of Cone Head Rocket .........................................
boxsize={200 10}
leader={alignment={none right}}
b)
+ + + + + + + + + Giant Wing in purple! + + + + + + + + +
+ + Long Distance Glider with sensational range! + +
+ + + + + Cone Head Rocket incredibly fast! + + + + +
boxsize={200 10}
position={center bottom}
leader={alignment={left right}
text={+ }}
8.1.7 Text on a Path
Instead of placing text on a straight line you can also place text on an arbitrary path.
PDFlib will place the individual characters along the path so that the text follows the
curvature of the path. Use the textpath option of fit_textline( ) to create text on a path.
The path must have been created earlier and is represented by a path handle. Path handles
can be created by explicitly constructing a path with add_path_point( ) and related
path object functions, or by retrieving a handle for the clipping path in an existing raster
image. The following code fragment creates a simple path and places text on the
path (see Figure 8.10):
/* Define the path in the origin */
path = p.add_path_point( -1, 0, 0, "move", "");
path = p.add_path_point(path, 100, 100, "control", "");
path = p.add_path_point(path, 200, 0, "circular", "");
/* Place text on the path */
p.fit_textline("Long Distance Glider with sensational range!", x, y,
"textpath={path=" + path + "} position={center bottom}");
/* We also draw the path for demonstration purposes */
p.draw_path(path, x, y, "stroke");
Cookbook A full code sample can be found in the Cookbook topic text_output/text_on_a_path.
Fig. 8.10
Text on a path
8.1 Placing and Fitting Textlines 205