Training, Open Source computer languages
PerlPHPPythonMySQLApache / TomcatTclRubyJavaC and C++LinuxCSS 
Search for:
Home Accessibility Courses Diary The Mouth Forum Resources Site Map About Us Contact
 
For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
canvas text  - changing the font size

Posted by TimT (TimT), 12 July 2005
Can you change the font size when using the canvas create text command?

Also how do you work out the pixel position of a letter within a line of text generated by the above command?


Posted by admin (Graham Ellis), 12 July 2005
You choose a font of the appropriate size using the -font option - there's an example of the use of different size fonts available in the course material section for the canvas widget.

In a fixed width font such as 12x24 or courier, you can work out the position of a character based on the width in pixels of each character * the number of letters in ... and remember that you have 9 options available to position (anchor) the text - also shown in the example above.   With proportional fonts, you cannot work it out in this way.

Posted by TimT (TimT), 12 July 2005
Thanks Graham for your answer - I should have checked my notes from your course! The tckl/tk pocket reference doesn't list fonts as an optional value

Another question - can you list the font options available?
( ie  font names and font sizes that go with them)

Posted by admin (Graham Ellis), 13 July 2005
Available fonts are drawn from the GUI of the system on which you're running Tk;  on the X Windows systems I'm most familiar with, the command to list them is xlsfonts



This page is a thread posted to the opentalk forum at www.opentalk.org.uk and archived here for reference. To jump to the archive index please follow this link.

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2024: Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • FAX: 01144 1225 793803 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho