Prima::Utils - miscellanneous routines
The module contains several helper routines, implemented in both C and perl. Whereas the C-coded parts are accessible only if 'use Prima;' statement was issued prior to the 'use Prima::Utils' invocation, the perl-coded are always available. This makes the module valuable when used without the rest of toolkit code.
- alarm $TIMEOUT, $SUB, @PARAMS
Calls SUB with PARAMS after TIMEOUT milliseconds.
- beep [ FLAGS = mb::Error ]
Invokes the system-depended sound and/or visual bell, corresponding to one of following constants:
mb::Error mb::Warning mb::Information mb::Question
Returns one of
gui::XXXconstants, reflecting the graphic user interface used in the system:
gui::Default gui::PM gui::Windows gui::XLib gui::GTK
Returns one of
apc::XXXconstants, reflecting the platfrom. Currently, the list of the supported platforms is:
- ceil DOUBLE
Returns stdlib's ceil() of DOUBLE
- find_image PATH
Converts PATH from perl module notation into a file path, and searches for the file in
@INCpaths set. If a file is found, its full filename is returned; otherwise
- floor DOUBLE
Returns stdlib's floor() of DOUBLE
- getdir PATH
Reads content of PATH directory and returns array of string pairs, where the first item is a file name, and the second is a file type.
The file type is a string, one of the following:
"fifo" - named pipe "chr" - character special file "dir" - directory "blk" - block special file "reg" - regular file "lnk" - symbolic link "sock" - socket "wht" - whiteout
This function was implemented for faster directory reading, to avoid successive call of
statfor every file.
Returns last system error, if any
- path [ FILE ]
If called with no parameters, returns path to a directory, usually ~/.prima, that can be used to contain the user settings of a toolkit module or a program. If FILE is specified, appends it to the path and returns the full file name. In the latter case the path is automatically created by
File::Path::mkpathunless it already exists.
- post $SUB, @PARAMS
Postpones a call to SUB with PARAMS until the next event loop tick.
- query_drives_map [ FIRST_DRIVE = "A:" ]
Returns anonymous array to drive letters, used by the system. FIRST_DRIVE can be set to other value to start enumeration from. Some OSes can probe eventual diskette drives inside the drive enumeration routines, so there is a chance to increase responsiveness of the function it might be reasonable to set FIRST_DRIVE to
If the system supports no drive letters, empty array reference is returned ( unix ).
- query_drive_type DRIVE
Returns one of
dt::XXXconstants, describing the type of drive, where DRIVE is a 1-character string. If there is no such drive, or the system supports no drive letters ( unix ),
dt::None dt::Unknown dt::Floppy dt::HDD dt::Network dt::CDROM dt::Memory
- sound [ FREQUENCY = 2000, DURATION = 100 ]
Issues a tone of FREQUENCY in Hz with DURATION in milliseconds.
Returns the login name of the user. Sometimes is preferred to the perl-provided
getlogin( see "getlogin" in perlfunc ) .
- xcolor COLOR
Accepts COLOR string on one of the three formats:
#rgb #rrggbb #rrrgggbbb
and returns 24-bit RGB integer value.
Dmitry Karasik, <email@example.com>.