Turnbull China Bikeride/Turnbull China Bikeride - Disc 2.iso/STUTTGART/UTIL/FILEUTIL/DIRMENU/DIRMENU~/!DirMenu/History

Text File | 1993-08-14 | 7KB | 203 lines

   DirMenu history:
   ----------------


0.00    July 1992
    Stored the whole HD directory tree as a file
    and loaded it each time it was run. To update
    the tree, had to delete the file and run again.
    A bit crap, but I used it every day for
    months, and it saved a lot of time!

1.00    May 1993
    Having seen !QuickDir by Clive Jones, I decided
    to provide menu-making on the fly as well, so
    the menu tree was always up-to-date. Also
    converted to DeskLib, which is superb.
    Added the configuable root menu featue.

1.10    May 5 1993
    Now displays icons in the menus. Discovered
    that the Wimp sends a message with action code
    0x400c9 when a menu is removed without a
    selection being made (e.g. a click off the
    menu). This is used to release all claims on
    further messages, which are detected when the
    menu is open in order to create new sub-menus
    when MENU_WARNING messages are sent by the WIMP.

1.20    May 12 1993 ** First release **
    Added the Info/Quit menu.
    The Info box is my first ever dialogue box,
    and I don't know how to make it moveable like
    all other dialogue boxes I've seen.

1.21    May 24 1993
    Added the options to open the root menu on the
    left hand side of the screen, as suggested by
    Kai Schlichting.
    Fixed a minor bug which resulted in a garbled
    title bar of the submenu of a '@' root item.
    I've now read the comp.sys.acorn Application
    Writer's Guide, so there is now no !Boot file,
    and I've found out how to make the Info window
    movable (process event_OPEN events).

1.30    ** Second release **
    Added Help to normal menu.
    Added 'Edit Configs' and 'Update' to normal menu.
    These do a poor-man's implementation of a proper
    dialogue-box configuration setter/saver. If I
    had more time... Actually, you shouldn't want to
    change the configs very often, so this method
    isn't too bad.
    Changed the template file so that the program
    fills in the version/date when it is run.

1.31    Looks for File_0fb instead of File_fb, when
    searching for a file-type sprite when the file-
    -type is < &100.

1.32    Compiled without function names in code, to
    make it slightly smaller.

1.40    20 June 1993
    Can have multiple icons on the icon-bar, with
    independent root menus.

1.41    Can have text under the icons.

1.42    28 June 1993
    If a directory has bit 6 of its Access atributes
    set, !DirMenu now displays it as an application
    (i.e. looks for a wimp sprite with same name).
    This is for compatability with FilerPatch, by
    Jens Ovesen.

1.43    4 July 1993
    The WIMP doesn't seem to invert text+sprite
    icons in the same way as normal icons in menus,
    so I've padded all items with spaces, making
    highlighted icons in the menu easier to see.

2.00    11 July 1993
    Now creates a menu for Filer windows, like
    !QuickDir.
    This is done by ataching a filter to the Filer
    which sends !DirMenu an event_CLICK when
    Alt-Menu is clicked on a filer window.

2.10    13 July 1993
    Opens a menu when there is a menu-click on the
    filer window title bar. I think this is a lot
    more convenient than going to the keyboard to
    press <Alt>.
    Couldn't use a filter for this because
    menu-clicks on title bars don't seem to be
    passed on to apps by the Wimp. Hence had to
    make a module which claims OS (not Wimp) mouse
    button events, and sends event_CLICK's to
    DirMenu.


2.11    13 July 1993
    Opens a Filer-window menu for both cases - menu
    on title bar, and alt-menu on workarea.
    !MakeMod makes a single module which acts as a
    filter on the Filer, and also catches mouse
    events.
    Couldn't use mouse-event-detector for the
    Alt-Menu case because the filer would flash
    open its menu just before DirMenu opens its menu.
    !RunImage runs the Basic prog '!MakeMod' after
    it has initialised as a task. !MakeMod then
    assembles the module, called DirMenuMouse,
    assembling in the Filer and DirMenu task_handles.
    When DirMenu is quit, it RMKill's the module.
    Assembling a module every time DirMenu is run
    is a bit clumsy, but I am a new-comer to ARM
    assembler, so a module that actively finds the
    relevant task handles (like in !QuickDir) is a
    bit too advanced for me. My method makes for a
    smaller module anyway, and anyway Acorn have
    gone to the trouble of including an assembler
    on every machine, so I might as well take
    advantage of it!

    I don't know of any way of preventing the Wimp
    from seeing a mouse click. This caused a few
    problems when making DirMenu respond to non-Wimp
    events from the module. Any suggestions ?

2.20    14 July 1993
    Uses a simple Wimp_Poll loop instead of DeskLib's
    Event_ functions, which are a bit of a luxury in
    such a simple program. This makes !RunImage
    nearly 5k smaller. However, it still can't fit
    into a 32k wimpslot.

2.21    18 July 1993 *** third release ***
    Can set DirMenu to expand all system variables in
    file-paths prior to Filer_Run-ing them. This is
    for when iconbar icons are specified to use
    system variables such as <Wimp$ScrapDir> or @. It
    makes file/application windows contain the full
    path name of the files that are clicked on. This
    just uses SWI "OS_FSControl" with r0=37.

2.22    27 July 1993
    Oh dear! The click-on-Filer-titlebar thing seems
    to be a bit wobbly. Changes:

    1. Detects true menu button click i.e. buttons
       000 -> 010, rather than xxx -> y1y.

    2. When opening a Filer-window menu, the main
       program now rechecks that the pointer is over
       a titlebar, as a drag closely followed by a
       menu click on a workarea seem to result in
       Wimp_GetPointerInfo returning the poition of
       the start of the drag i.e. a titlebar. This
       resulted in spurious menu opening sometimes.
       Unfortunately, if you now move the pointer
       away from a titlebar very quickly after
       clicking menu, this modification may mean
       that DirMenu won't open a menu.

    3. In !MakeMod, changed SWI calls to have 'X' bit
       set, and return if the SWI signals an error.
       The normal OS default error handling can give
       a horrid crash when using MemFS's non-
       -multitasking 'free' window. I don't think
       this is my fault, as the OS error handling
       should cope with errors, and the SWI was
       Wimp_GetPointerInfo - hardly a complicated
       system-altering one. There was no problem
       with other non-multitasking windows.

    Thanks to Kai Schlichting for noticing these
    problems.

2.23    13 Aug 1993
    Mr Schlichting still gets spurious menus, and
    I'm a bit stumped by them. I think part of the
    the problem is something to do with
    Wimp_GetPointerInfo returning an out-of-date old
    mouse position just after a drag has taken place,
    leading to DirMenu being told that a click
    occured on a title bar, when it didn't. You can
    now make DirMenu only respond to Alt-Menu clicks
    in a filer window, by altering 'Configs'. This
    removes the low-level code from DirMenu's module.

    The two tiny Obey files 'TBar' and 'NoTBar' are
    needed because Filer_Run doesn't allow you to
    send parameters to whatever it is you're
    Filer_Run-ing.


Can anybody tell me why a 20K program needs more
than a 32k wimpslot to run?