SpaceExtra

SpaceExtra Space out text for left/right justification

#include <Quickdraw.h> Quickdraw

void SpaceExtra(extraSpace );

Fixed extraSpace ; spacing adjustment, fractional pixels

SpaceExtra tells the Font Manager how much additional space to add when

displaying the space character (ASCII 0x20). It can be useful in

fully-justifying text.

extraSpace is a 4-byte Fixed value, specifying the average number of pixels and

fractional pixels to be added to each space character (ASCII 0x32).

Notes: SpaceExtra modifies the spExtra field of the current GrafPort structure.

The initial value of this field is 0.

To justify a given text string to a specific line width:

1 Use StringWidth to get the unadjusted size of the string.

2 Subtract the returned value from the width between the margins; the

difference is the amount of adjustment needed.

3 Count the number of spaces in the line.

4 Use FixRatio to find the ratio between the results of steps 2 and 3.

5 Call SpaceExtra, specifying the ratio returned from step 4.

6 Position the pen (MoveTo) and draw the text (DrawString).