[Usability]Re: Articles on icon design

[Lars Weber <lars brokenbits de>]

> > Its sort of a neat idea anyway. You could define some amount of space that 
> > is considered "a lot" and measure trash contents based on that.

---8<---

#include <wink.h>

#define TRASH_HAS_NO_SMALL_FILES   0x00 /* use `lid beside trash can' icon */
#define TRASH_HAS_SMALL_FILES      0x01 /* use `lid on trash can' icon */
#define TRASH_HAS_MANY_SMALL_FILES 0x02 /* use `overflowing trash can' icon */
#define TRASH_HAS_LARGE_FILES      0x04 /* add big stuff beside trash can */
#define TRASH_HAS_MANY_LARGE_FILES 0x08 /* add more big stuff */
#define TRASH_HAS_OLD_FILES        0x10 /* add `flies'-animation to icon */

void
set_trash_icon (void)
{
        int icon_flags = TRASH_HAS_NO_SMALL_FILES;

        if ( trash_has_many_small_files () )
                icon_flags = TRASH_HAS_MANY_SMALL_FILES;
        else if ( trash_has_small_files () )
                icon_flags = TRASH_HAS_SMALL_FILES;

        if ( trash_has_many_large_files () )
                icon_flags = icon_flags | TRASH_HAS_MANY_LARGE_FILES;
        else if ( trash_has_large_files () )
                icon_flags = icon_flags | TRASH_HAS_LARGE_FILES;

        if ( trash_has_old_files () )
                icon_flags = icon_flags | HAS_OLD_FILES;

        really_set_trash_icon (icon_flags);
}

--->8---

Regards,
Lars