TweetFollow Us on Twitter

Icon in DA Menu
Volume Number:5
Issue Number:4
Column Tag:Assembly Lab

Related Info: Desk Manager Menu Manager

Icons in DA Menus

By John A. Love, III, Springfield, VA

John got his start in the world of computers a long time ago on main frames while serving in the U. S. Air Force. He has gone from the Apple ][ to the “Fat” Mac to his SE. He can be found on GEnie (J.LOVE7).

I am currently writing a Desk Accessory in whose MENU Items I would like to have ICONs. Immediately we have two seemingly disparate numbering systems as dictated by “Inside Macintosh” {IM}. The first deals with the arithmetic pertaining to IDs for Resources owned by Desk Accessories; the second pertains to IDs for ICONs placed in MENU Items. Each set of arithmetic is simple enough to understand. The challenge, of course, is their combined implementation in each of two different operational environments.

Let’s quickly review the 1st numbering system pertaining to owned Resources. The best way to accomplish this is the picture contained in Volume I of IM:

Figure 1. Resource ID of an Owned System Resource

Since a Desk Accessory is a DRVR-type Resource, the type bits = 000. The ID of the owning Resource can be derived one of two ways, the most common of which relies on dCtlRefNum in the Device Control Entry (DCE). The last 5 bits, earmarked “variable”, are up for grabs so long, obviously, as the quantity is in the range 0 --> 31. Speaking of ranges, what this long word reduces to is a number in the range = -16000 --> -15521 for a Desk Accessory.

NOW, what about the 2nd numbering system that addresses the IDs of ICONs for MENU Items?? IM stipulates that these numbers be in the range 257 --> 511. Once again it is obvious that when you load or create your MENUs in the Open Section of your DRVR, you’ve got to temporarily change the high negative ID of your owned MENU ICON to a low positive # before you call _SetItmIcon. No sweat, right ?*!!*? Yup, anything you say !!

As if the above gymnastics weren’t enough, it turns out that “Suitcase” searches for the 1st empty slot {a positive Unit # = the ID of the owning Resource} and temporarily converts that to new IDs for your owned Resources. For example, if your Source Code specifies a Unit # of 16 {mandatory range = 12 --> 26}, but “Suitcase” detects an empty Slot #12, “Suitcase” will temporarily change all the IDs of your DA’s owned Resources accordingly {I don’t know what “Font/DA Juggler Plus” does behind the scenes}. Interesting, you say ?*!!*?

Before I address the solution to the above puzzle, I must praise to the skies both the intelligence and patience of the following folk, without whom I would still be groveling:

• Steve Brecher, author of “Suitcase”.

• Dave McWherter, author of

“McAssembly™” {$5000 SW} and the

“McSink” DA. By the way, the latter is now

called “Vantage™” and goes for $8995.

• Dave Smith..

By the way, if I blow it, I hereby declare that I am the sole occupant at the end of this tree limb that I’m busily sawing off. Steve and the two Dave’s are not responsible for any of my mistakes.

First, what does NOT work:

 Open Section   -->  _GetResInfo {original ID}
            
  _SetResInfo {new ID}
 ; ------------------------------

 Close Section -->    _SetResInfo {original ID}

These gyrations won’t work in either operational environment. Oh, your MENU ICONs will show up as advertised after you open your DA in both; however, upon closing the DA, the new ID is still in place {257 -> 511} for the 1st environment [using “Font/DA Mover”]. NO resetting was implemented. As you can see, I do NOT call _WriteResource on closing, because then I would update the System File Resource {YUCK !!} Even if I would be willing to suffer the latter, “Suitcase”, remember, messes with the owned Resource ID and the reset would be back to its make-believe ID, NOT my ID as stored on disk. “Ain’t life wonderful ??”

Okay, folks, how about making a copy of the Handle to your MENU ICONs, and, after doing the appropriate arithmetic, using the copy for your MENU and best of all, this works {well, almost }. All the Source Code that follows uses “McAssembly™”, Version 7.3 :


setMenuIcon MACRO&1,&2,&3 ; MenuHandle,Menu Item #,ICON Name.

 ; First, retrieve the attached ICON Resource:
 move.w RescIDBase,iconID
 addi.w #&2,iconID
 GetIconiconID,=iconHdl
 move.l iconHdl,tempHdl   ; Just temporary, folks !!
 
 ; Then, get the Resource file’s Attributes so we can
 ; reset them later.  After that, we make a copy of the
 ; ICON’s Handle so that we can use the COPY for the MENU:
 
 HomeResFileiconHdl,=resFileRef
 GetResFileAttrs resFileRef,=resFileAttrs
 ; ----------
 move.l iconHdl,a0
 _HandToHand
 move.l a0,cyHdl
 ReleaseResource tempHdl  ; The ORIGINAL Resource.
 ; Now, place the ICON’s COPY in the Menu Item by
 ; changing the ICON’s ID # to between 257 --> 511:
 move.w #&2,iconID
 addi.w #256,iconID
 AddResourcecyHdl,#’ICON’,iconID,!.name
 bra.s  .1
.name   text#&&3
 align
 ; Reset to ORIGINAL Attributes to clear the resChanged
 ; Bit in the Attribute Byte so that we don’t update the
 ; Resource upon Closing AND so “Suitcase” DOES reset to
 ; the disk-based ID:

.1 SetResFileAttrs resFileRef,resFileAttrs
 SetItmIcon &1,#&2,#&2    ; menuHandle,item #,icon #.
 ENDM

Okay, this almost works, but _SetResFileAttrs , itself, will eventually do a _WriteResource. Since close only counts in horseshoes, so much for that idea. Anything else?

What about setting the “MapReadOnly” bit of the Resource file’s Attribute byte so that the changed Resource Map is NOT written to disk. This could be done upon Opening the DA. Upon Closing, the original “MapReadOnly” bit could be reset. Steve Brecher correctly pointed out, however, that this effectively holds your DA’s Resource(s) captive ==> a super big “no-no” !!

Okay, I guess I’ll just have to implement what Dave McWherter suggested several months back write my own Menu Definition Procedure and thank heaven for Darryl Lovato (MacTutor, August 86). Darryl presented his code in Pascal. Just for the sake of converting to assembly, there’s no need to blatantly repeat his code here. However, I do wish to present the sub-Function that handles “mChooseMsg” simply because I have added access to hierarchical menu items that, guess what, also have ICONs. By the way, I use Mike Schuster’s “PopupSelect” routine to implement the hierarchical Menus {see MacTutor, Dec 85}:

Before I present the modified assembly Source code, I would like to extend a 1000 special “Atta-Boys” to Dave McWherter, author of “McAssembly™” and the “Vantage™” DA, aka “McSink”.

Dave’s Assembler, in my considered judgment, incorporates many of the most powerful features of Apple’s “MPW”, while retaining the ultimate of user friendliness. You can even program in the worlds of the 68010, 68020 and 68851 CPUs by invoking a pseudo-opcode, for example, ‘M68020’. A very significant part of this user friendliness focuses on what he calls the “Trap Compiler” with which the assembly language programmer can implement the sometimes-lengthy pushes onto the Stack prior to actually calling the various TRAPs via ONE line of code, just like “LightSpeed Pascal”. At the present time, the current Version (7.3) uses Apple’s “Edit”, or other comparable Editor external to “McAssembly™”. Be forewarned, however -- Dave is working on an update to “McAssembly™” wherein he is incorporating his own Editor internal to his Assembler. In this manner, if there is an assembly error (horrors !!), you bounce automatically into his Editor. Neat, isn’t it, again just like “LightSpeed Pascal”.

So long as I’m advertising, Dave’s “McSink” is now being distributed by :

Preferred Software

5100 Poplar Avenue

Suite 2716

Memphis, TN 38137

(901) 683-3383

“McSink”, now called “Vantage™”, is a text Processing Desk Accessory that includes :

Auto-paste and Auto-copy between multiple windows (max = 16)

Horizontal scrolling

KeyPad control of cursor placement

Catalog Folder contents

Statistics -- # of characters, lines, words, sentences and paragraph in the shown document

Add/Strip prefix & suffix strings, as well as line #s

Dave can be reached via:

Signature Software

2151 Brown Avenue

Bensalem, PA. 19020

(215) 639-8764

Now, onto the Source Code I’ve promised

First, how do I install my own Menu Definition Procedure?? It’s really very easy -- all I do is create a 6--byte handle in which I have code to effect an absolute jump to my Procedure. This Handle is then stored in in the “menuDefHandle” field of the Menu Record. This teeny--tiny code parcel is as follows:

In the Open section of the Desk Accessory Driver:

 move.l #6,d0    ; “jmp  myMenuDefProc”.
 _NewHandle,clear
 move.l a0,myMenuDefHdl
 bra.s  .skipCode
 ; ----------
.code   jmp $CCCCCCCC; 6 bytes.
.absAddrdc.lmyMenuDefProc-.absAddr
 ; ----------
.skipCode move.l (a0),a0  ; Convert to a Pointer.
 lea  .code,a1
 move.w (a1)+,(a0)+; Object Code word for “jmp”.
 lea  .absAddr,a1
 move.l (a1),d1
 lea  (a1,d1.l),a1 ; Absolute address of
 move.l a1,(a0)  ;   “myMenuDefProc”.
  
 NewMenudCtlMenu,!newMenuName,=mainMenuHdl
 AppendMenu mainMenuHdl,!mainMenuItems
 InstallMenuProc mainMenuHdl
  
InstallMenuProc  MACRO  &1; MenuHandle.

 move.l &1,a1    ; Handle -->
 move.l (a1),a1  ;   Pointer.
 move.l myMenuDefHdl,menuDefHandle(a1) ; _NewHandle into Menu Record.
 ; ----------
 CalcMenuSize  &1
 ENDM

Now, the “mChooseMsg” portion of my Menu Definition Procedure as I stated earlier. By the way, you’ll see below some strange looking animals, such as func, endParms, locals, endLocals, enter & exit. These beasts are special Macros that Dave McWherter wrote to assist in the Stack manipulation required to link to an external subroutine.

Some “screwy” things have to happen here in order to simulate a Hierarchical Menu. First, when you choose a main Menu Item that has a Hierarchical {sub} Menu -- you know it’s a Hierarchical Menu Item because its “Cmd-key” = $1B -- you immediately go to an external Popup Menu routine as shown below. Nothing unusual so far But, now you have to fake-out the Menu Manager by returning an un-believably high Item #, like the maximum # = 31, so the Menu Manager does not blink an Item on the main, or parent Menu as you release the Mouse over the subMenu. Hold on, I’m not through yet Down a-ways into the Code, you’ll see a reference to supporting your local _MenuChoice on the Macintosh II. Sure enough, but there’s another equally important reason for placing the Item # in the global, MenuDisable. The reason is that you peg on MenuDisable in the Menu Event section of your Desk Accessory code, instead of on the csParam field of the Parameter Block Record. The reason for this last divet is that otherwise the Menu Manager will not communicate a Menu Event to your DA. Actually, to tell you the truth, this doesn’t make a darn bit of sense, but it’s true when you write your own Menu Definition Procedure instead of using Apple’s !!

Now, hold on a cotton-pickin minute, Love, don’t you know that the new Menu Manger supports Hierarchical Menus already. Yup, sure enough!! However, there’s a bug in the portion of the new Menu Manager that handles screen up-dates after you release the Mouse over a Hierarchical Menu Item {anybody know when System Version 7.0 is due out ??}

; ======================================
; FUNCTION  doChooseMessage (myMenu:MenuHandle; myRect:Rect; myPoint:Point;
;     oldItem:INTEGER) : INTEGER;
; Returns Menu Item # you selected:
doChooseMessage  funcinteger
.myMenu handle
.myRect pointer
.myPointpoint
.oldIteminteger
 endParms
 locals
.oldRectrect
.itemKeychar
.itemMark char
.itemRect rect
 endLocals
.menuHdlrequa1   ; My worker bees ...
.cyParamBlkPtr requa2
.cyDCEPtr requ a3
.menuRegrequa4
.theItemrequd3   ; Counts Items to get current one.
.enableFlagsrequ d4; A disabled
.shift  requd0   ;   item ??
 enter
 
 movem.ld1-d7/a0-a4,-(sp) ; All your goodies.
 ; ==========
 move.l .myMenu,.menuHdl  ; Handle -->
 move.l (.menuHdl),.menuReg ;   Pointer.
 ;
 PtInRect .myPoint,.myRect,=d0
 beq  .outsideMRect
 moveq  #0,.theItem; Initialize counter.
.chooseLoop addq.w #1,.theItem
 push.l .myMenu
 push.l .myRect
 push.w .theItem
 pea  .itemRect
 bsr  GetItemRect
 ; ----------    
 PtInRect .myPoint,!.itemRect,=d1
 beq.s  .chooseLoop
 move.l menuID(.menuReg),d2 ; Support _MenuChoice
 move.w .theItem,d2;   for the Mac II.
 move.l d2,MenuDisable
.disabled?move.l menuEnable(.menuReg),.enableFlags
 BitAnd .enableFlags,#1,=d0 ; Bit #0 for ENTIRE Menu.
 beq.s  .yup; ... it’s disabled.
 ; ----------
 moveq  #1,.shift
 lsl.l  .theItem,.shift   
 BitAnd .enableFlags,.shift,=d1
 bne.s  .deSelectOld
 ; ----------    
.yup    moveq  #0,.theItem; Item is disabled.
.deSelectOldcmp.w.oldItem,.theItem
 beq  .aSelection
 tst.w  .oldItem
 beq.s  .selectNew ; MenuBar, so don’t invert back.
 ; ----------    
 push.l .myMenu
 push.l .myRect
 push.w .oldItem
 pea  .oldRect
 bsr  GetItemRect
 InverRect!.oldRect; Invert back to white
.selectNewtst.w  .theItem
 beq.s  .itsDisabled
 ; ----------    
 InverRect!.itemRect ; Blacken current selection.
 push.l .myMenu
 push.w .theItem
 pea  .itemKey
 bsr  GetItemKey
 cmpi.w #hMenuCmd,.itemKey
 bne.s  .aSelection
 ;
 GetItmMark .myMenu,.theItem,!.itemMark
 GetMHandle .itemMark,=a0 ; = MenuHandle.
 clr.l  -(sp)
 push.l a0
 push.l .myPoint
 bsr  PopupSelect
 pop.l  d1
 tst.w  d1
 beq.s  .onMenuBar ; Item’s disabled.
 move.w #31,.theItem ; ... fake out Menu Manager so it
 ;     doesn’t blink a parent item.
.itsDisabled
.aSelection move.w .theItem,.result
 bra.s  .end
 ; ==========
.outsideMRect  tst.w .oldItem
 beq.s  .onMenuBar
 ; ----------    
 push.l .myMenu
 push.l .myRect
 push.w .oldItem
 pea  .oldRect
 bsr  GetItemRect
 InverRect!.oldRect; Back to white.
.onMenuBarclr.w  .result
 ; ==========
.end    movem.l  (sp)+,d1-d7/a0-a4 ; Withdraw life savings !!
 
 exit

 
AAPL
$107.72
Apple Inc.
+0.74
MSFT
$46.72
Microsoft Corpora
+0.67
GOOG
$557.22
Google Inc.
+6.91

MacTech Search:
Community Search:

Software Updates via MacUpdate

Vitamin-R 2.20b1 - Personal productivity...
Vitamin-R creates the optimal conditions for your brain to work at its best by structuring your work into short bursts of distraction-free, highly focused activity alternating with opportunities for... Read more
Dropbox 2.10.44 - Cloud synchronization...
Dropbox is an application that creates a special Finder folder that automatically syncs online and between your computers. It allows you to both backup files and keep them up-to-date between systems... Read more
Sandvox 2.9.2 - Easily build eye-catchin...
Sandvox is for Mac users who want to create a professional looking website quickly and easily. With Sandvox, you don't need to be a Web genius to build a stylish, feature-rich, standards-compliant... Read more
Cocktail 8.0.1 - General maintenance and...
Cocktail is a general purpose utility for OS X that lets you clean, repair and optimize your Mac. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get... Read more
LibreOffice 4.3.3.2 - Free Open Source o...
LibreOffice is an office suite (word processor, spreadsheet, presentations, drawing tool) compatible with other major office suites. The Document Foundation is coordinating development and... Read more
VMware Fusion 7.0.1 - Run Windows apps a...
VMware Fusion allows you to create a Virtual Machine on your Mac and run Windows (including Windows 8.1) and Windows software on your Mac. Run your favorite Windows applications alongside Mac... Read more
OneNote 15.3.2 - Free digital notebook f...
OneNote is your very own digital notebook. With OneNote, you can capture that flash of genius, that moment of inspiration, or that list of errands that's too important to forget. Whether you're at... Read more
Audio Hijack Pro 2.11.4 - Record and enh...
Audio Hijack Pro drastically changes the way you use audio on your computer, giving you the freedom to listen to audio when you want and how you want. Record and enhance any audio with Audio Hijack... Read more
Iridient Developer 3.0.0 beta 3 - Powerf...
Iridient Developer (was RAW Developer) is a powerful image conversion application designed specifically for OS X. Iridient Developer gives advanced photographers total control over every aspect of... Read more
TextWrangler 4.5.11 - Free general purpo...
TextWrangler is the powerful general purpose text editor, and Unix and server administrator's tool. Oh, and also, like the best things in life, it's free. TextWrangler is the "little brother" to... Read more

Latest Forum Discussions

See All

Card Dungeon, the Semi-Board Game Roguel...
Card Dungeon, the Semi-Board Game Roguelike, Has Been Renovated Posted by Jessica Fisher on October 31st, 2014 [ permalink ] | Read more »
Logitech Protection + Power iPhone5/5S C...
Made by: Logitech Price: $99.99 Hardware/iOS Integration Rating: 3 out of 5 stars Usability Rating: 0.5 out of 5 stars Reuse Value Rating: 0.75 out of 5 stars Build Quality Rating: 0.75 out of 5 stars Overall Rating: 1.25 out of 5 stars | Read more »
This Is Not a Test Goes Free, Permanentl...
This Is Not a Test Goes Free, Permanently Posted by Jessica Fisher on October 31st, 2014 [ permalink ] Universal App - Designed for iPhone and iPad | Read more »
Swap Heroes Review
Swap Heroes Review By Campbell Bird on October 31st, 2014 Our Rating: :: STRATEGIC SWAPPINGUniversal App - Designed for iPhone and iPad Rotate a cast of heroes to fend of waves of monsters in this difficult, puzzle rpg.   | Read more »
Night Sky Pro™ (Reference)
Night Sky Pro™ 3.0.1 Device: iOS Universal Category: Reference Price: $2.99, Version: 3.0.1 (iTunes) Description: Night Sky Pro™Wonder No More™ Night Sky Pro™ is the ultimate stargazing experience. From the creators of the original... | Read more »
Audio Defence : Zombie Arena (Games)
Audio Defence : Zombie Arena 1.0 Device: iOS Universal Category: Games Price: $4.99, Version: 1.0 (iTunes) Description: A zombie shooter audio game. Made from gut-wrenching 3D binaural sound, for a new kind of weird immersion. You... | Read more »
RPG Asdivine Hearts (Games)
RPG Asdivine Hearts 1.1.0 Device: iOS Universal Category: Games Price: $3.99, Version: 1.1.0 (iTunes) Description: SPECIAL PRICE50% OFF (USD 7.99 -> USD 3.99)!!! Travel alongside four companions and a cat in the adventure of a... | Read more »
Haunt the House: Terrortown (Games)
Haunt the House: Terrortown 1.0.1 Device: iOS Universal Category: Games Price: $.99, Version: 1.0.1 (iTunes) Description: 66.6% OFF! SPECIAL SPOOKY HALLOWEEN LAUNCH PRICE! 66.6% OFF! ...What was that sound? Is somebody there? | Read more »
SAS: Zombie Assault 4 Review
SAS: Zombie Assault 4 Review By Jennifer Allen on October 30th, 2014 Our Rating: :: FLAWED SHOOTERUniversal App - Designed for iPhone and iPad Shoot everything that moves in this fun, if flawed, twin-stick shooter.   | Read more »
Naailde the Witch Review
Naailde the Witch Review By Amy Solomon on October 30th, 2014 Our Rating: :: PITCH-PERFECT STORYTELLINGUniversal App - Designed for iPhone and iPad Marvelous storytelling, narration, and moving illustrations make this storybook... | Read more »

Price Scanner via MacPrices.net

Apple Regains Momentum As Windows Stutters An...
The latest smartphone sales data from Kantar Worldpanel ComTech, for the three months to March 2014, shows Apple performing strongly in the first quarter of the year, with sales bouncing back in... Read more
Worldwide Smartphone Shipments Increase 25.2%...
New smartphone releases and an increased emphasis on emerging markets drove global smartphone shipments above 300 million units for the second consecutive quarter, according to preliminary data from... Read more
Apple now offering refurbished 2014 15-inch M...
The Apple Store is now offering Apple Certified Refurbished 2014 15″ Retina MacBook Pros for up to $400 off the cost of new models. An Apple one-year warranty is included with each model, and... Read more
Apple drops prices on refurbished 2013 Retina...
The Apple Store has dropped prices on 2013 Apple Certified Refurbished 13″ and 15″ Retina MacBook Pros, with Retina models now available starting at $999. Apple’s one-year warranty is standard, and... Read more
New 2.8GHz Mac mini on sale for $949, save $5...
Abt Electronics has the new 2.8GHz Mac mini in stock and on sale for $949.05 including free shipping. Their price is $50 off MSRP, and it’s the lowest price available for this model from any reseller... Read more
Sale! 3.7GHz Quad Core Mac Pro available for...
 B&H Photo has the 3.7GHz Quad Core Mac Pro on sale for $2649 including free shipping plus NY sales tax only. Their price is $350 off MSRP, and it’s the lowest price for this model from any... Read more
Mujjo Steps Up The Game With Refined Touchscr...
Netherlands based Mujjo have just launched their Refined Touchscreen Gloves, stepping up their game. The gloves feature a updated elegant design that takes these knitted gloves to the next level. A... Read more
Sale! Preorder the new 27-inch 5K iMac for $2...
 Abt Electronics has the new 27″ 3.5GHz 5K iMac on sale and available for preorder for $2374.05 including free shipping. Their price is $125 off MSRP, and it’s the lowest price available for this... Read more
Simplex Solutions Inc. Brings Secure Web Surf...
New York based Simplex Solutions Inc. has announced the release and immediate availability of Private Browser 1.0, its revolutionary new secure web browser developed for iPhone, iPad and iPod touch... Read more
Save up to $180 off MSRP with an Apple refurb...
The Apple Store has Apple Certified Refurbished 2014 MacBook Airs available for up to $180 off the cost of new models. An Apple one-year warranty is included with each MacBook, and shipping is free.... Read more

Jobs Board

Position Opening at *Apple* - Apple (United...
**Job Summary** Every day, business customers come to the Apple Store to discover what powerful, easy-to-use Apple products can do for them. As a Business Leader, Read more
Sr. Manager, *Apple* Deployment Programs fo...
**Job Summary** Apple is seeking candidates for a new position on the Education Content and Technology team. iPad and Mac is in the hands of millions of teachers and Read more
*Apple* Solutions Consultant (ASC) - Apple I...
…important role that the ASC serves is that of providing an excellent Apple Customer Experience. Responsibilities include: * Promoting Apple products and solutions Read more
*Apple* Solutions Consultant (ASC) - Apple I...
…important role that the ASC serves is that of providing an excellent Apple Customer Experience. Responsibilities include: * Promoting Apple products and solutions Read more
*Apple* Solutions Consultant (ASC) - Apple I...
…important role that the ASC serves is that of providing an excellent Apple Customer Experience. Responsibilities include: * Promoting Apple products and solutions Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.