Class Announcements

The announcements are divided into the following categories:

• Assignments
• Miscellaneous notes and announcements
• Information concerning the Text Book and Reference Materials
• Information concerning lab writing
• A detailed course schedule
• Motif Class FAQ. Student can ask questions through e-mail concerning class material, assignments, and labs. I will post the questions and answers here (after removing the student's name).
• Alternative Means for Accessing aplcenmp

Assignments

• Assignment 1
• Assignment 2
• Lab 1
• Lab 2
• Lab 3

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Miscellaneous Notes

• Be sure to get your aplcenmp accounts soon as lab programming will begin on the third week of class.

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Text Book and Reference Materials

The following are the required and optional materials. All can be purchased in the school bookstore.

Motif Programming Manual for OSF/Motif Release 1.2, by Dan Heller & Paula Ferguson (Required)

This is probably the best text I have found. It has many examples and covers Motif version 1.2 in the most comprehensive way I have seen.

Class notes (Required)

These notes are copies of all transparencies that are presented in class. There are approximately 250 pages in this package. The school is charging approximately $10.00 to recover photocopying charges. The class notes are required materials. There is material in there notes which is not covered in the Motif Programming Manual.

Motif Reference Manual for OSF/Motif Release 1.2, by Paula Ferguson. (Recommended)

This book, though not required, is strongly recommended. It contains a list of all Motif functions, data structures, and widgets.

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Lab Writing

During the course, the students will have to write 3 lab assignments. Each lab is a progressively more complex user interface for an on-line address book. The following are the general requirements for writing your labs:

1. Any copying of labs (or homework) will result in a 0 grade for that assignment.
2. All submitted header and implementation files (.h and .c) must be written in ANSI C (or C++). This means that you can not use the acc compiler on aplcenmp. You may use the sample makefile if you choose (it uses CC).
3. All programs must be compiled and tested on aplcenmp. This is where I will do my grading.
4. You may use my address book application code which manages names and addresses as well as the address book file itself. If the code does not meet your needs, contact me and I will extend it or you may write your own address book code if you wish. This code is written in C++ (with a c wrapper so you do not have to know C++) so your compiler must be able to compile/link C++. The aplcenmp CC compiler compiles and links C++ successfully.
5. The following are the files I would like you submit. Please, no core files, object files or executables, they will just be deleted.
6. • header files,
   • implementation files,
   • makefile,
   • optional readme, and
   • and any application code (address book code I wrote) you had to modify.
7. The mechanism for submission is the following commands:
8. 1. tar -cvf lab.tar *.h *.c ...
   2. compress lab.tar
   3. uuencode lab.tar.Z myname.tar.Z > lab.uu
   4. mail tien@aplcenmp.apl.jhu.edu < lab.uu

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Alternative Methods for Accessing aplcenmp

This section discusses several alternative means for writing labs and doing work on aplcenmp. It is possible that many if not all of these methods will not be applicable to your situation, but feel free to use any that are. Remember, the only requirement I have is that you test your work on aplcenmp prior to submitting it. This is where I will be doing the testing, therefore, this is where it MUST work.

General Terminal Emulation

The following are some phone numbers. I do not yet know how to turn on the SLIP or PPP portion of these numbers (there must be a command), but you can dial into these numbers and use the session as a VT-100 for program editing. You won't be able to run your programs until we figure out how to turn on SLIP or PPP.

• 1 800 835-0936
• 1 301 953-5690
• 1 301 953-5691
• 1 301 953-5531
• 1 301 953-5733

Useful if you have a home PC with SLIP or PPP Connectivity

Follow the following instructions. For the purposes of discussion, I will assume that your IP address is 111.111.111.111.

Note: I will NOT be responsible for any damage or problems that occur to your system as a result of using the public domain software mentioned below! I will also not accept responsibility for late assignments due to wasted nights attempting to configure your system to make this work.

1. Follow instructions in /public/binary/windows/Xwin32/README on aplcenmp.apl.jhu.edu
2. Configure the X Emulator (this is a 1 time operation)
3. 1. Execute Xutil.exe.
   2. Select the Edit Sessions menu item then New Session.
   3. Enter a name such as apl.
   4. Select rsh from the connect mode radio box.
   5. Type aplcenmp.apl.jhu.edu in the Host Name text field.
   6. Type in your user id in the Login text field (mine is simonoff).
   7. Type xterm in the command field.
   8. Click on OK
   9. Select the menu Options followed by Xhost
   10. Type the name of your session (APL from above for example)
   11. Click on Add then Ok
4. Now dial up and establish your SLIP or PPP connection
5. Log into aplcenmp (providing your userid and password)
6. Type setenv DISPLAY 111.111.111.111:0
7. Start the Xwin32.exe program
8. Try running a Motif program, after a delay, it should appear on your PC screen.

Useful if you have a X Terminal at Work

If you have a X Terminal or UNIX workstation capable of supporting a X Server, use the following steps. For the purposes of discussion, I will assume that your IP address is 111.111.111.111.

1. Log into your UNIX system
2. Type xhost +
3. Type telnet aplcenmp.apl.jhu.edu. Note that if this step fails, your firewall will prevent further progress.
4. Log into aplcenmp providing your userid and password
5. In the aplcenmp window type setenv DISPLAY 111.111.111.111:0
6. Try running your Motif application. Note that if your application fails with a message saying something like can't open display, then your firewall is going to prevent this from working.

Useful if you have a home PC without SLIP/PPP access

I have not tried this, but there is a program called Winsock and another called Trumpet. These are located on aplcenmp.apl.jhu.edu in /public/binary/windows/Winsock. There is some documentation there and there are some sample configurations in /public/binary/windows (ppp.info, slip.info, and login.cmd). I know nothing about this software so can provide absolutely no help. If you get it to work and keep careful notes on what you did, I can post the information here for others to use.

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Course Schedule

The following schedule of course material, assignments and labs may change as the semester proceeds. If we need to slow down or are able to speed up I will track the changes to the following chart:

• Week 1 (Sept. 9) - Course Introduction and Introduction to Graphical User Interfaces. Recommend reading Chapter 1. Assignment 1 (Graphical User Interfaces) will be handed out.

  Week 2 (Sept. 16) - X Architecture (X Client/Server Architecture, Using X Windows and X Window Clients). There is no reading for this lecture. Assignment 1 collected.

  Week 3 (Sept. 23) - Introduction to Motif (including a first program). Recommended reading Chapters 2 & 3. Lab 1 will be handed out.

  Week 4 (Sept. 30) - Introduction to Motif widgets. Main Window widget. Recommend reading Chapter 4.

  Week 5 (Oct. 7) - Dialogs. Recommended reading Chapters 5 and 6.

  Week 6 (Oct. 14) - Continue dialogs. Recommended reading Chapter 7. Lab 1 is due, and lab 2 will be passed out.

  Week 7 (Oct. 21) - Manager Widgets. Recommend reading chapter 8. Assignment 2 (Manager widgets) will be passed out.

  Week 8 (Oct. 28) - List and Text Widgets. Recommend reading Chapters 12 and 14.

  Week 9 (Nov. 4) - Menus. Recommend reading chapter 15. Assignment 2 will be collected. Lab 2 is due. Lab 3 will be handed out.

  Week 10 (Nov. 11) - DrawingArea widget. Recommend reading chapters 10.

  Week 11 (Nov. 18) - ScrolledWindows, ScrollBars, Labels, and Buttons. Recommend reading chapter 9 and 11.

  Week 12 (Nov. 25) -

  Week 13 (Dec. 2) -

  Week 14 (Dec. 9) Final exam week. Lab 3 is due.

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Motif Class FAQ

This section is divided into various sections concerning labs, homework, and general questions. I will create further divisions if needed.

Labs

Homework

General

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