GitLab

Detail:
  * The pointer passed to Wimp_CommandWindow can now be top-bit-set.
  * Bugfix to Wimp_CommandWindow: if the current task was uninitialised,
    or initialised as a non-multitasking task, then although entering the
    CommandWindow would restore escape condition generation to the way it
    was before entering the desktop, exiting the CommandWindow did not
    reset escape condition generation to the default desktop state (which is
    for escape condition generation to be disabled).
  * Escape condition generation is disabled for the duration of SWI
    Wimp_ReportError (instead of setting the default escape key for the
    duration). The previous state is restored on exit.
  * Added a minimal environment for the service call
    Service_ErrorButtonPressed, so that claimants can call OS_Exit without
    leaving the global Wimp error box in an undefined state.
  * In the Wimp_Poll loop, if there are no events to deliver to any tasks
    (not even null events), then rather than sitting in a SVC mode loop,
    the Wimp now triggers transient callbacks. This is particularly
    important in order not to halt all activity in the Internet stack.
    The option LeaveOS can be set to make the Wimp use the as-yet
    unimplemented SWI OS_LeaveOS for this purpose; this is currently unset
    for all builds.
  * By (persistent) request, reinstated the old iconbar popping code,
    though it is currently a build switch that is turned off for all builds.
Admin:
  Tested on a Risc PC.

Version 4.69. Tagged as 'Wimp-4_69'

Detail:
  When building a copy for RISC OS 3.1, this bug would be hit. Now fixed.
Admin:
  Checked on RISC OS 3.1; seems to work fine now.

Version 4.68. Tagged as 'Wimp-4_68'

Detail:
  * Command line buffer for Wimp_StartTask (and anything that uses it,
    eg *WimpTask) increased from 256 bytes to 1024 bytes.
  * Top-bit-set message list pointers passed to Wimp_Initialise and
    Wimp_RemoveMessages now work (there was never a problem with
    Wimp_AddMessages!)
  * The fix for top-bit-set application name pointers in Wimp 4.65 actually
    only fixed lookup for "<application> may have gone wrong" lookups. They
    now work correctly in error window title construction, and when
    constructing an application sprite name if flag bit 8 is clear.
  * A pointer value of 0 is now accepted in addition to -1 for an
    "<application> may have gone wrong" lookup - this brings it into line
    with the other two places where the application name pointer is
    referenced.
  * When constructing an error window title, the Wimp would skip any leading
    backslash character. Now it does so when constructing "<application> may
    have gone wrong" too - this is a simple way to disable the application
    sprite in the error window.
Admin:
  Error box behaviour actually tested this time!

Version 4.67. Tagged as 'Wimp-4_67'

  Updated to build using objasm instead of aasm.
  Sources changed to be objasm-compatible.
Admin:
  Requires Library 0.71 or later.
  Requires BuildSys 3.06 or later.
  Requires Env 0.65 or later.

Version 4.64. Tagged as 'Wimp-4_64'

Detail:
  1) The pointer to the module flags word wasn't made relative to the start
     of the module; because the linker bases an image at &8000 by default,
     this meant that the module flags pointer pointed at a word 32K too far
     into the image, and there were even chances whether a given build of
     the Wimp would appear to be 32-bit compatible.
  2) Due to a missing alignment directive in the Wimp's workspace layout, if
     you did a build of the Wimp where one or more of the ClickSubmenus,
     IconiseButton, StickyEdges or BounceClose switches were on but the
     PoppingIconBar one was off, you would end up with several word-sized
     locations being non-word-aligned. This affected embedded builds, where
     only the ClickSubmenus switch (new in Wimp 4.57) is typically set, but
     not desktop builds, where PoppingIconBar is typically set.
Admin:
  Only tested on a desktop machine so far, but this wouldn't have shown up
  either of the problems in the first place...

Version 4.63. Tagged as 'Wimp-4_63'

Detail:
  * Added new functionality for menu trees: submenus can now be opened by
    clicking on their parent menu item. This is particularly aimed at
    touchscreen devices, and is configurable via the new *Configure keyword
    WimpClickSubmenu.
  * Change to the menu inactivity timeout behaviour after auto-opening of
    submenus (either by hovering over the parent menu item or by the new
    click-to-open functionality): although all hover operations are still
    ignored for this period, any click operations *will* now be obeyed.
  * Corrected numerous misleading comments in the menu handling code.
  * Added some suspiciously absent ALIGNs in the *Configure keyword handlers.
  * Uses new ASCII case-forcing macros so there are now fewer warnings
    printed during assembly (and it should run faster now too).
  * Added an AREA directive so that objasm's -ABS switch is no longer needed.
  * Standardised ErrMem token across all Messages files that use English.
Admin:
  Tested on a desktop machine.
  Requires HdrSrc 1.06.

Version 4.57. Tagged as 'Wimp-4_57'

Detail:
  Lots of little changes throughout a lot of source.
Admin:
  Appears to work - not stress tested with things like lots of tasks, big
  transfers, and all the other things that tend to go wrong.

Version 4.47. Tagged as 'Wimp-4_47'

Detail:
  The code that checked for a Wimp_Initialise version number of >= 380 before
  applying the new interpretation of title foreground colour &FF was broken:
  it was checking the current task handle instead of the task handle of the
  window's creator. A few other things needed tampering with in order to ensure
  that the window's task handle word is correctly set up at the time that the
  colour check is performed.
Admin:
  Tested in a desktop build, using STB resources.

Version 4.43. Tagged as 'Wimp-4_43'

Doing all of recalcmodevars on Service_ModeChanging turns out to be a Bad Idea because some of the Wimp's copies of VDU variables end up out-of-date. Now only the parts pertaining to command windows are done on Service_ModeChanging

(for that was the bit we were having trouble with), and the rest is back on
Service_ModeChange.

Version 4.24. Tagged as 'Wimp-4_24'

(this was clashing with the Interlace module at one point during STB
development, and had the potential to trip us up again in the future).

No longer produces build errors if some resources are absent.

Corrected token in Japan messages file to use valid UTF-8 character.

Service call table now included by default.

Version 4.23. Tagged as 'Wimp-4_23'

Version 4.19. Tagged as 'Wimp-4_19'

* If pointer was hidden-until-next-mouse-move, the act of confining the mouse
  to the error box window no longer causes it to be redisplayed.
* In error boxes, the pointer and the IconHigh highlight are now initially
  positioned over the rightmost (default) button. There is one exception to
  this rule: when "Next task" is clicked in a Watchdog window, the pointer
  stays over the "Next task" button.

Version 4.13. Tagged as 'Wimp-4_13'

Optimisation to new WimpSymbol substitution code: in icons containing fonts other than the desktop font, the substitution table is only calculated when a symbol character is encountered.

Embryonic cut-n-paste support introduced (currently in desktop builds only):
  * workspace is allocated and initialised;
  * extended Wimp_GetCaretPosition implemented;
  * pushfontstring adapted to allow insertion of arbitrary control sequences in
    font strings (to allow selected text to be plotted in inverted colours).
Inverted, unfilled text icons now work properly again in <256-colour modes.
Reworked NC error box code: see Doc.IconHigh.

Version 4.11. Tagged as 'Wimp-4_11'

* Deprecated Font SWIs no longer used
* Height of UTF-8 strings now calculated correctly
* Fancy fonts in icons are now aligned the same as outline desktop-font icons
* Text rubout boxes for icons with text above the sprite are correctly sized

Lazy WimpSymbol subsitution implemented: characters are only substituted if
they are not already present in the font. For the first time, substitution
now works in UTF-8 text - but for the proper Unicode positions of the
relevant symbols, instead of usurping undefined positions (as in other
alphabets).

Version 4.10. Tagged as 'Wimp-4_10'

Adapted assembly process so that the choice of Options file (previously based purely on the "System" variable) can be overridden by passing "OPTIONS=foo" as an argument to either MkRom, or to amu/amu_machine directly, or indirectly, by specifying it in the components file for a build. To accomplish this, it was necessary to switch from using aasm to objasm - hence the large number of source files affected in this commit.

Version 4.09. Tagged as 'Wimp-4_09'

Service_SwitchingOutputToSprite code optimised: graphics parameters are now only cached when making the first Wimp_PlotIcon call while output is switched to a sprite, and upon return to screen output after such an occurrence.

All error box templates featuring "border" icons updated to have button type
0 (never). This prevents IconHigh from mistakenly allowing them to be selected.

Version 4.07. Tagged as 'Wimp-4_07'

UTF-8 support from previous version switched in; additional alphabet- conditional support added as follows:

* Correctly converts character index returned from Font_FindCaret into byte
  index into raw string.
* Left-arrow, right-arrow, delete-left and delete-right now act as far as
  the next character boundary, instead of to the next byte.
* Menu item text justification works again (it relies on overwriting spaces
  with hard space characters, which are two-byte characters in UTF-8).
* General key handling code has been rewritten. The Wimp now has three
  internal key input buffers - one each for taking keyboard-generated,
  task-generated, and function-key-generated strings. Each input buffer is
  processed in chunks of one character, rather than one byte; malformed
  UTF-8 characters are rejected, so tasks don't have to worry about them
  (simplifying their character-handling code). There is also a key output
  buffer, to ensure that (UTF-8) sequences of Key_Pressed events are not
  broken up.
* As a result of the above, multiple calls to Wimp_ProcessKey are now
  possible between calls to Wimp_Poll. Previously, this resulted in bytes
  getting jumbled up - making it useless for input of UTF-8 characters.
* Multi-byte characters are inserted into writeable icons in one go, so you
  don't see a brief flicker of the "malformed character" symbol while the
  initial bytes are being inserted.
* Multi-byte characters that don't entirely fit in a writeable icon buffer
  are not inserted at all.
* A new validation string command ("U") can limit the contents of a
  writeable by number of characters, instead of bytes. This will hide the
  character sizes from the user interface.
* Allowable characters (validation string command "A") now works on Unicode
  characters and character ranges.
* Various other minor bugs are fixed (Wimp_ProcessKey 13 can activate a
  writeable menu item, Shift-arrow keys are always consistent in firing off
  Key_Pressed events, etc.)
* Password icons supported: one symbol is displayed for each character
  (instead of for each byte); the display character (validation string
  command "D") can be any UTF-8 character; correctly displays the caret
  after set-caret-by-index calls, even though characters in the processed
  string are different width to those in the raw string, in password icons.

Other changes:
* The border around NC-style error boxes is resized when the error window
  is grown or shrunk.
* Messages, CmdHelp and Template files made consistent across resource
  directories, including support for all Ursula features.
* ShrinkableAreas turned back on in System=RCA builds.
* User interface features of desktop OS builds standardised.

Version 4.06. Tagged as 'Wimp-4_06'

Changed to use srccommit.
All conditionals on "Version" removed.

Version 4.01. Tagged as 'Wimp-4_01'

Made options files specify any text wanted after the module version number.
Auto-fronting iconbar now returns to previous position rather than back, so
it interacts with Shift+F12 better.