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- Extremely easy-to-read guide to the reasons why you should use Tornado to
- write your desktop apps with.
-
- by N. Douglas.
-
- Introduction
- -=-=-=-=-=-=
- As anyone who knows me will testify, I don't particularly like RO3.1 or
- anything of that thereafter. There's a simple reason to this: I think RO2 was
- the last great update to RISC-OS, and since then there's been nothing added
- to the OS.
- That's why I came up with Tornado. About 80% IMHO of programs written for
- RISC-OS are written for the desktop environment, and yet the method of using
- the desktop and writing for it are arcane and haven't changed greatly since
- RISC-OS 2.
- The entire philosophy of writing for Tornado is different. You no longer
- write applications in their own right. You write code which defines your
- program as what you want it to be. You don't write code to redraw windows,
- you don't write code to open menus, you don't write code to load or save
- files. You don't even write code to manage memory. You don't write code to
- recognise the difference a double click from a triple click. You don't even
- write code to load in your user-defined configuration.
- The whole thing about Tornado that will scare most programmers is how
- little you /do/ do. And the great advantage of that is that Tornado suddenly
- has a lot of power over every app using it. Which allows applications to
- function as a single unit in a fashion never before seen on ANY platform.
- And despite all this automation, Tornado increases the power available to
- a task by incredible amounts. Suddenly, things like printing no longer take
- over the desktop. Tornado applications can just as easily print five files,
- while recalculating a spreadsheet and converting a set of files from GIF to
- JPEG *on* *a* *1Mb* *machine* (it uses virtual memory). And this BTW,
- _doesn't_ require any applications loaded in other than a single spreadsheet.
- Tornado offers processing occurring on a task at multiple levels, via its
- TAOS-like subtask facilites. Files loaded into one application can appear in
- another application's window without consuming any extra memory, and any
- operations performed on one 'view' affect all other 'views', as actually
- they are all multiple views of the same file. Files can be OLEd and RAM
- transferred to and from any app, including non-Tornado one's (although OLEing
- between Tornado apps is _much_ more pleasant and convenient).
-
- The foremost objective of Tornado /is/ /to/ /increase/ /productivity/.
- Above all else, it will do this to its fullest extent. The second objective
- is to be frugal with resources ie; be quick & responsive, not consume vast
- amounts of memory to do simple operations (like certain PC GUIs), and not to
- take up vast stretches of disc space. The tertiary objective is to remove as
- much programming time from the programmer as possible, and to make life on
- him/her as easy as possible.
-
-
-
-
- Index
- -=-=-
- 1: Continous polling, I/O, OLE and hotlinking
- 2: Memory management
- 3: Subtasks
- 4: Renderers
- 5: Crash protection
- 6: The shell itself
- 7: Misc
-
-
-
-
- Well, unfortunately, as always, here's the copyright notice:
- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
- (Note, you don't /have/ to read it, but not reading it means you are still
- usually under its influence - read it to find out!)
-
- Copyright for absolutely everything described, implicated or inferred to
- (ideas included), whether intentionally or not, within the data as contained
- within the unaltered copy of this archive remains with me Niall Douglas, if
- so granted by the laws of the country in which you are reading this;
- otherwise, copyright remains with me for the same as aforementioned above up
- to and including that which is deemed maximum by the laws of the country in
- which you are reading this.
- The reader is permitted to distribute this archive wherever he/she
- chooses, so long as it remains unaltered and its archived state. Any
- recipient of this archive is also bound by these copyright restrictions from
- the moment of posessing a copy of the archive whether he/she has read these
- restrictions or not, unless this statement and the statement previous to that
- cannot be upheld by the laws of the country in which the copy of this archive
- is being held, in which case the aforementioned statements as written above
- in this paragraph are stated to be in force up to and including that which is
- deemed maximum by the laws of the country in which the copy of this archive
- is residing.
- I take this opportunity to declare no responsibility for any inaccuracies,
- misleading statements (whether intentional or otherwise) or any other liable
- information or statements, unless this resolution cannot be upheld by the
- laws of the country in which this archive is being held, in which case the
- aforementioned statements as written above in this paragraph are stated to be
- in force up to and including that which is deemed maximum by the laws of the
- country in which this archive is residing.
- By reading these restrictions, or having the ability to read them (whether
- it be direct or indirect), you are agreeing to be bound by them. Again, this
- is unless this statement cannot be upheld by the laws of the country in which
- the copy of this archive is being held.
-
- (C) Niall Douglas 1995
-