204 lines
6.2 KiB
Plaintext
204 lines
6.2 KiB
Plaintext
|
From ph@doc.ic.ac.uk Mon Nov 28 14:55:30 1994
|
||
|
|
To: achurch@goober.mbhs.edu
|
||
|
|
Subject: Intuition Extension
|
||
|
|
Date: Mon, 28 Nov 1994 19:54:10 +0000
|
||
|
|
From: Paul Hickman <ph@doc.ic.ac.uk>
|
||
|
|
|
||
|
|
|
||
|
|
Somehow I seem to have ended up with the documentation for version 1.2b,
|
||
|
|
but the .lib file for version 1.1! However, the 1.2b documentation does
|
||
|
|
not say that any of these bugs have been fixed...
|
||
|
|
|
||
|
|
|
||
|
|
2-Colour Screen Bug
|
||
|
|
===================
|
||
|
|
|
||
|
|
|
||
|
|
I have finally found out why MUI, Reqtools and other programs think that
|
||
|
|
all AMOS Intuition screens only have 2 colours, after fixing the Cygnus
|
||
|
|
Editor 2.12 screen using the promotor. The reason is because you do not
|
||
|
|
setup the dri_pens array by specifying an SA_PENS tag when opening the
|
||
|
|
screen( Or you are not using OpenScreenTags or OpenScreenTaglist or the
|
||
|
|
ExtNewScreen structure at all). The procedure given below sets up the dripens
|
||
|
|
after the screen is open, so that reqtools requesters, gadtool library,
|
||
|
|
and MUI windows open with the correct colours, and the screen title bar
|
||
|
|
looks like a normal KS2.x/3.x screen title bar (Almost - The screen depth
|
||
|
|
gadget still looks like a KS1.x screen gadget, but I think this is because
|
||
|
|
I am modifying the dri_pens after the screen is open instead of specifing
|
||
|
|
them before).
|
||
|
|
|
||
|
|
The parameters are:
|
||
|
|
|
||
|
|
_DETAIL = Colour No. to use for normal detail. (Detail pen in Screen struct)
|
||
|
|
_BLOCK = Colour No. to use for normal block. (Detail pen in Screen struct)
|
||
|
|
_TEXT = " normal text.
|
||
|
|
_SHINE = " bright 3D edges.
|
||
|
|
_SHADOW = " dark 3D edges.
|
||
|
|
_FILL = " Selected window/gadget background
|
||
|
|
_FILLTEXT = " Selected window/gadget foreground
|
||
|
|
_BACK = " normal background. (Should be 0)
|
||
|
|
_HIGH = " highlighted text foreground (On normal back)
|
||
|
|
_BARDETAIL= " menubar text & other foreground
|
||
|
|
_BARBLOCK = " menubar background
|
||
|
|
_BARTRIM = " the thin line under the menubar.
|
||
|
|
|
||
|
|
The last three only have any affect under KS3.x. The default settings should
|
||
|
|
be the ones given in this example call, which shows the difference made to
|
||
|
|
the ASL/Reqtools file requester:
|
||
|
|
|
||
|
|
Iscreen Open 0,640,256,8,Hires,"Hello World"+Chr$(0)
|
||
|
|
Amos To Back
|
||
|
|
F$=Irequest File$
|
||
|
|
ISET_PENS[1,0,1,2,1,3,1,0,2,1,2,1]
|
||
|
|
F$=Irequest File$
|
||
|
|
|
||
|
|
If the 2 requesters appear identical to you, it may be that under 2.x, the
|
||
|
|
ASL library does not use dri_pens. But under 3.x, the first requester
|
||
|
|
appears in a black & grey window - No blue or white.
|
||
|
|
|
||
|
|
|
||
|
|
Procedure ISET_PENS[_DETAIL,_BLOCK,_TEXT,_SHINE,_SHADOW,_FILL,_FILLTEXT,
|
||
|
|
_BACK,_HIGH,_BARDETAIL,_BARBLOCK,_BARTRIM]
|
||
|
|
'
|
||
|
|
'^^^ Parameters split onto 2 lines for readability.
|
||
|
|
'
|
||
|
|
'
|
||
|
|
'Obtain the draw info structure for the screen, and
|
||
|
|
'the number of pens (9=V36-38, 12=V39-40)
|
||
|
|
'
|
||
|
|
Areg(0)=Iscreen Base
|
||
|
|
_DRAW_INFO=Intcall(-690) : Rem _LVOGetScreenDrawInfo
|
||
|
|
_NUM_PENS=Deek(_DRAW_INFO+2)
|
||
|
|
_PENARRAY=Leek(_DRAW_INFO+4)
|
||
|
|
|
||
|
|
|
||
|
|
'
|
||
|
|
'Set the pens to the colours specified.
|
||
|
|
'
|
||
|
|
Doke _PENARRAY,_DETAIL
|
||
|
|
Doke _PENARRAY+2,_BLOCK
|
||
|
|
Doke _PENARRAY+4,_TEXT
|
||
|
|
Doke _PENARRAY+6,_SHINE
|
||
|
|
Doke _PENARRAY+8,_SHADOW
|
||
|
|
Doke _PENARRAY+10,_FILL
|
||
|
|
Doke _PENARRAY+12,_FILLTEXT
|
||
|
|
Doke _PENARRAY+14,_BACK
|
||
|
|
Doke _PENARRAY+16,_HIGH
|
||
|
|
If _NUM_PENS>=12
|
||
|
|
'
|
||
|
|
'Additional pens for V39-40 only
|
||
|
|
'
|
||
|
|
Doke _PENARRAY+18,_BARDETAIL
|
||
|
|
Doke _PENARRAY+20,_BARBLOCK
|
||
|
|
Doke _PENARRAY+22,_BARTRIM
|
||
|
|
End If
|
||
|
|
|
||
|
|
|
||
|
|
'
|
||
|
|
'Inform intuiton that this is now a new-look screen, so it uses these
|
||
|
|
'pens whenever possible, and uses the KS2.x/3.x style window border
|
||
|
|
'gadgets.
|
||
|
|
'
|
||
|
|
'Without this, the window border gadgets in the requesters use the wrong
|
||
|
|
'colours. You probably won't need to do this, if the screen is opened
|
||
|
|
'with a taglist.
|
||
|
|
'
|
||
|
|
Loke _DRAW_INFO+18,1
|
||
|
|
|
||
|
|
|
||
|
|
'
|
||
|
|
'Now determine if the screen title is visible, and redraw it if it is,
|
||
|
|
'which makes it use the BARDETAIL,BARBLOCK & BARTRIM pens.
|
||
|
|
'
|
||
|
|
If Btst(4,Iscreen Base+21)
|
||
|
|
Areg(0)=Iscreen Base
|
||
|
|
Dreg(0)=1
|
||
|
|
A=Intcall(-282) : Rem _LVOShowTitle
|
||
|
|
End If
|
||
|
|
|
||
|
|
'
|
||
|
|
'This only leaves the screen depth gadgetusing the old KS1.x style gadget.
|
||
|
|
'I can't seem to change this, but I believe it would be correct if the
|
||
|
|
'dri_pens were setup before the screen was opened, and the screen opened
|
||
|
|
'using OpenScreenTags or Taglist.
|
||
|
|
'
|
||
|
|
'
|
||
|
|
End Proc
|
||
|
|
|
||
|
|
I suggest you provide to new intuition commands:
|
||
|
|
|
||
|
|
1) Iscreen Open Nl ...
|
||
|
|
|
||
|
|
Opens a newlook screen, using OpenScreenTag[s/List], and sets up the
|
||
|
|
default dri_pens by providing an SA_PENS tag in the list.
|
||
|
|
|
||
|
|
|
||
|
|
2) Iscreen pens DETAIL,BLOCK,TEXT, etc.
|
||
|
|
|
||
|
|
A machine code version of the above procedure.
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Irequest ... bug
|
||
|
|
=================
|
||
|
|
|
||
|
|
If you call these functions when the AMOS screen is "in front" the
|
||
|
|
machine locks up, and you have to reboot the machine. Fix this by
|
||
|
|
checking the status of the AMOS screen before calling the requester
|
||
|
|
functions e.g.
|
||
|
|
|
||
|
|
;Assumes standard AMOS A5
|
||
|
|
|
||
|
|
move.w T_NoFlip(a5),d7 ;Store "Amos (Un)Lock" status
|
||
|
|
move.w #$FFFF,T_NoFlip(a5) ;Turn "Amos Lock" on
|
||
|
|
tst.w T_AMOSHere(a5) ;Test if AMOS screen is in front
|
||
|
|
bne.s .amosinfronterr
|
||
|
|
|
||
|
|
;Insert your requester here ...
|
||
|
|
;You'll have to preserve D7 somehow.
|
||
|
|
|
||
|
|
move.w d7,T_NoFlip(a5) ;Restore AMOS Lock Status
|
||
|
|
rts
|
||
|
|
|
||
|
|
.amosinfronterr
|
||
|
|
move.w d7,T_NoFlip(a5) ;Restore AMOS Lock Status
|
||
|
|
moveQ #AMOS_SCREEN_IN_FRONT_ERR,d0
|
||
|
|
Rbra L_Custom ;Cause an AMOS error
|
||
|
|
|
||
|
|
|
||
|
|
NOTE: You can't move the AMOS screen from front to back just by changing
|
||
|
|
T_AMOSHere(A5) - An automatic Amos To Back when the command is called
|
||
|
|
would be moe complicated.
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
Iset Screen Title
|
||
|
|
=================
|
||
|
|
|
||
|
|
Add an instruction to change the screen title after the screen is opened.
|
||
|
|
|
||
|
|
|
||
|
|
Palettes
|
||
|
|
=======
|
||
|
|
|
||
|
|
How about an instruction to set palettes using colour values from 0 to 255
|
||
|
|
instead of 0-15
|
||
|
|
|
||
|
|
|
||
|
|
+-------------------------+------------------------------------+
|
||
|
|
| | _____ |
|
||
|
|
| PAUL HICKMAN | / \ ON A HOT SUMMER NIGHT |
|
||
|
|
| (ph@doc.ic.ac.uk) | / O O \ WOULD YOU OFFER YOUR |
|
||
|
|
| DEPARTMENT OF COMPUTING | | _ | THROAT TO THE WOLF |
|
||
|
|
| IMPERIAL COLLEGE LONDON | \ / \ / WITH THE RED ROSES ? |
|
||
|
|
| | \_____/ |
|
||
|
|
+-------------------------+------------------------------------+
|
||
|
|
Machines: Amiga 500 WB1.3 - 1mb Memory - External Disk Drive.
|
||
|
|
Amiga 1200 WB3.0 - 6mb Memory - 200Mb Hard Disk.
|
||
|
|
|