Category : OS/2 Files
Archive   : SHR93.ZIP
Filename : ADDRBKV.C

 
Output of file : ADDRBKV.C contained in archive : SHR93.ZIP
/*
* OS/2 Work Place Shell Sample Program - ShrAddressBook view code
*
* Copyright (C) 1993 IBM Corporation
*
* DISCLAIMER OF WARRANTIES. The following [enclosed] code is
* sample code created by IBM Corporation. This sample code is
* not part of any standard or IBM product and is provided to you
* solely for the purpose of assisting you in the development of
* your applications. The code is provided "AS IS". ALL
* WARRANTIES ARE EXPRESSLY DISCLAIMED, INCLUDING THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE. IBM shall not be liable for any damages arising out
* of your use of the sample code, even if IBM has been advised of
* the possibility of such damages.
*
* The address book view window structure is shown below
* along with the corresponding window procedures:
*
* hwndFrame (ShrAddressBookFrameWndProc)
* |
* hwndNotebook (WC_NOTEBOOK)
* |
* hwndCnrOwner (ShrFrameCnrOwnerWndProc)
* |
* hwndCnr (WC_CONTAINER)
*
* All the notebook pages point to the same window, hwndCnrOwner.
* The contents of the container is filtered based on the current top
* page.
*/

#define SOM_NoTest

#include "share.h"
#include "addrbk.h"
#include "addrbkv.h"
#include "notify.h"
#include "person.h"

/*
* A pointer to the view data for the Address Book is kept
* in the extra window word (QW_USER) of the frame.
*/

#define setAddressBookViewDataFromFrame(h,p) \
WinSetWindowULong(h,QWL_USER,(ULONG)p)
#define queryAddressBookViewDataFromFrame(h) \
(PADDRESSBOOKVIEWDATA) WinQueryWindowULong(h,QWL_USER)

/*
* Below is the data that is kept for each Address
* Book's Indexed View. It would be better if this structure
* was converted to a SOM object with methods like shrOpen,
* shrClose, shrPersonAdded, etc.
*/

typedef struct
{
SOMAny *somSelf;
HWND hwndCnr;
HWND hwndNotebook;
} ADDRESSBOOKVIEWDATA, *PADDRESSBOOKVIEWDATA;

/*
* ShrFilterAddressBookRecord is a container filter function.
*
* It allows objects who's first character below to the set
* of characters for the page. For example, "Smith" belongs in
* "S - V" page. The pszIndexChars parameter would point to
* the string "STUV" when filtering for that page (see CM_FILTER
* message for more details).
*/

extern BOOL EXPENTRY ShrFilterAddressBookRecord
(PMINIRECORDCORE pRecord, PSZ pszIndexChars)
{
BOOL bInclude = FALSE;
PSZ pszTitle;
CHAR chFirst;
SOMAny *somObject;

/*
* In theory, no non-person objects can get into the
* address book since ShrAddressBook's wpDragOver
* method refuses non-person objects.
*
* But check anyway just in case the user opened a command line
* and copied something to the address book subdirectory.
*
* Note that _somIsA is not used here. That is because later
* developers may want to implement a new-and-improved version
* of the person object that is not a direct descendant of
* ShrPerson. But note there is a problem -- ShrPerson
* has many methods that are not "name lookup" methods, ie, they
* use the offset method, so creating a new person class that is
* not a subclass of ShrPerson would require considerable care since
* it would have to be certain to have its version of ShrPerson
* methods in the same order in the method table as ShrPerson's.
*/

somObject = _shrclsValidateObject(ShrFindAddressBookClass(),
OBJECT_FROM_PREC(pRecord));

if (somObject)
{
pszTitle = _wpQueryTitle(somObject);

/*
* When the user creates a new person for the address
* book, it is given the default name "Last name, First name".
*
* We'd like to make it easy to find the newly created person,
* so the user doesn't have to search through the pages
* (ie, the "J - L" page would contain "Last name, First name").
* So add a filter check for the default name, and if this object
* has it, allow it on all pages.
*/

if (strstr(pszTitle, vszPersonNewTitle))
{
bInclude = TRUE;
}
else
{
chFirst = toupper(pszTitle[0]);

/*
* The index characters (pszIndexChars) is a list of those
* characters allowed in the address book page that is
* currently active. For example, the "A - C" page index
* characters string is "ABC", "V - Z" page uses "VWXYZ".
*
* If it is NULL, then we're filtering for the "Misc" page
* which contains all others that don't belong in the
* "A" to "Z" pages (eg, "1st Federal Bank"). We check if
* the first character doesn't fit in the "A" to "Z" pages
* by searching "vszAllIndexChars" which contains the
* characters "ABCDEFGHIJKLMNOPQRSTUVWXYZ".
*/

if (pszIndexChars)
bInclude = BOOLFROMP(strchr(pszIndexChars, chFirst));
else
bInclude = !strchr(vszAllIndexChars, chFirst);
}
}

return bInclude;
}


/*
* ShrSortAddressBookRecord is a container sort function.
* It simply sorts by object title.
*
* See the pSortRecord field in the CNRINFO structure,
* the CM_SETCNRINFO message, and the CM_SORTRECORD message for
* more details.
*/

extern SHORT EXPENTRY ShrSortAddressBookRecord
(PMINIRECORDCORE pRecord1, PMINIRECORDCORE pRecord2, PVOID pUnused)
{
return stricmp(_wpQueryTitle(OBJECT_FROM_PREC(pRecord1)),
_wpQueryTitle(OBJECT_FROM_PREC(pRecord2)));
}

/*
* ShrCnrInsertObject inserts the object into the given container.
*
* No positioning is done, so CCS_AUTOPOSITION should be specified
* when creating the container.
*/

extern PMINIRECORDCORE ShrCnrInsertObject
(SOMAny *somInsertObject, HWND hwndCnr)
{
RECORDINSERT recordInsert;
POINTL ptlIcon;
PMINIRECORDCORE pMiniRecord;

/*
* Note the record is inserted without invalidating.
* This is because the container records will later
* be filtered with CM_FILTER which invalidates all
* the records (see ShrAddressBookUpdateTopPage for
* more details).
*/

ptlIcon.x = ptlIcon.y = 0;

memset(&recordInsert, 0, sizeof(recordInsert));
recordInsert.cb = sizeof(RECORDINSERT);
recordInsert.pRecordOrder = (PRECORDCORE) CMA_END;
recordInsert.zOrder = CMA_TOP;
recordInsert.cRecordsInsert = 1;
recordInsert.fInvalidateRecord = FALSE;

pMiniRecord = _wpCnrInsertObject(somInsertObject, hwndCnr,
&ptlIcon, NULL, &recordInsert);

return pMiniRecord;
}

/*
* ShrAddressBookUpdateTopPage handles the user switching to a new
* page in the address book.
*/

extern VOID ShrAddressBookUpdateTopPage
(SOMAny *somSelf, HWND hwndNotebook, HWND hwndCnr)
{
ULONG ulPageId;
PSZ pszIndexChars;
BOOKTEXT booktext;
CNRINFO cnrInfo;

/*
* The notebook page data points to a static string containing
* the list of valid first-characters for the page, eg:
* "ABC" for "A - C". If the index characters pointer is NULL,
* then the page is the "Misc" page, ie, it holds all the persons
* whose names do not fit into one of the other pages (eg,
* "1st Federal Bank").
*/

ulPageId = (ULONG) WinSendMsg(hwndNotebook, BKM_QUERYPAGEID,
MPFROMLONG(BKA_TOP), MPFROMLONG(BKA_TOP));
pszIndexChars = (PSZ) WinSendMsg(hwndNotebook, BKM_QUERYPAGEDATA,
MPFROMLONG(ulPageId), NULL);
WinSendMsg(hwndCnr, CM_FILTER,
MPFROMP(ShrFilterAddressBookRecord), pszIndexChars);

/*
* OS/2 2.0 GA container had a bug which did not re-sort the
* containers when the icon text was changed even though
* CMA_PSORTRECORD was specified on CM_SETCNRINFO.
*
* Make an extra call to CM_SORTRECORD in case we're running
* on a 2.0 machine.
*/

WinSendMsg(hwndCnr, CM_SORTRECORD,
MPFROMP(ShrSortAddressBookRecord), NULL);

/*
* The address book container title is set to the tab of the
* top page to make it a little more obvious what page the user
* is dealing with.
*
* Note the container title buffer must be static, ie, not on the
* stack, since the container does not make a copy of it
* but strictly stores your pointer to it.
*/

booktext.pString = vszAddressBookCnrTitle;
booktext.textLen = sizeof(vszAddressBookCnrTitle);
WinSendMsg(hwndNotebook,
BKM_QUERYTABTEXT, MPFROMLONG(ulPageId),
&booktext);

cnrInfo.cb = sizeof(cnrInfo);
cnrInfo.flWindowAttr = CA_CONTAINERTITLE |
CA_TITLEREADONLY | CA_TITLESEPARATOR;
cnrInfo.pszCnrTitle = vszAddressBookCnrTitle;

WinSendMsg(hwndCnr, CM_SETCNRINFO, MPFROMP(&cnrInfo),
MPFROMLONG(CMA_FLWINDOWATTR | CMA_CNRTITLE));
}

/*
* ShrAddressBookPersonAdded is called when the open view
* notified via SHRN_ADDRESSBOOKPERSONADDED
* page in the address book.

* Note: The address book view is notified because it has
* registered interest via the shrAddInterestedWindow method
* (see ShrNotifier for more details).
*/

extern VOID ShrAddressBookPersonAdded
(SOMAny *somSelf, HWND hwndNotebook, HWND hwndCnr,
SOMAny *somNewPerson)
{
ShrCnrInsertObject(somNewPerson, hwndCnr);
ShrAddressBookUpdateTopPage(somSelf, hwndNotebook, hwndCnr);
}

/*
* ShrAddressBookDestroy is called when the address book frame
* receives WM_DESTROY.
*/

extern VOID ShrAddressBookDestroy
(SOMAny *somSelf, HWND hwndFrame, HWND hwndCnr)
{
/*
* This view is going away, so remove interest in the model.
*/

_shrRemoveInterestedWindow(_shrQueryNotifier(somSelf), hwndFrame);

/*
* Remove all the WPS object container records from
* the container before closing (otherwise
* the default container destroy action is to free the records,
* which screws up WPS since its records are shared).
*/

ShrEmptyObjectCnr(hwndCnr);

/*
* Save the colors, fonts, size and position of the
* address book frame.
*/

WinStoreWindowPos(vszAppName, vszIndexedViewWindowPosKeyName,
hwndFrame);

/*
* Remove and free the USAGE_OPENVIEW item from the address
* book use list.
*/

ShrClosingView(somSelf, hwndFrame);
}

/*
* ShrCnrRegisterOwner is used to register a FRAME window as
* a view of a WPS object. Calling this method associates the
* frame with the object so WPS can figure out what frames belong
* to which objects during drag operations.
*
* Note: wpRegisterView will subclass the frame window to add
* standard WPS container object behavior (drag/drop, context
* menus, etc). The wpRegisterView method expects top-level frame
* windows since it adds it to the Window List. But we have to
* call it anyway to get WPS to subclass this frame, even though
* it isn't a top level window. As fate would have it, the call
* to WinAddSwitchEntry fails for this frame is not top-level.
*
* See ShrOpenAddressBook for more details.
*
* A better long-term solution would be for WPS to add
* wpCnrRegisterOwner method that does all that wpRegisterView
* does today EXCEPT for trying to add the frame to the Window List.
* (see "Problem 1" in WPS-PGM.TXT for more details).
*/

extern BOOL ShrCnrRegisterOwner(SOMAny *somObject, HWND hwndCnrOwner)
{
return _wpRegisterView(somObject, hwndCnrOwner, vszNullString);
}

/*
* ShrAddressBookFrameWndProc
*/

extern MRESULT EXPENTRY ShrAddressBookFrameWndProc
(HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2)
{
MRESULT mr = NULL;
PADDRESSBOOKVIEWDATA pViewData;

switch (msg)
{
/*
* SHRN_ADDRESSBOOKPERSONADDED is sent when a person
* is added to the address book model. Update the
* view to match.
*/

case SHRN_ADDRESSBOOKPERSONADDED:
pViewData = queryAddressBookViewDataFromFrame(hwnd);

ShrAddressBookPersonAdded(pViewData->somSelf,
pViewData->hwndNotebook, pViewData->hwndCnr,
(SOMAny *) mp2);
break;

/*
* WM_CONTROL is sent when an owned control has something
* about it that has changed. We're only interested in the
* page turning activity of the notebook.
*/

case WM_CONTROL:
pViewData = queryAddressBookViewDataFromFrame(hwnd);

if (SHORT1FROMMP(mp1) == FID_CLIENT)
{
if (SHORT2FROMMP(mp1) == BKN_PAGESELECTED)
ShrAddressBookUpdateTopPage(pViewData->somSelf,
pViewData->hwndNotebook, pViewData->hwndCnr);
}
else
{
mr = ShrDefWPSCnrOwnerProc(hwnd, msg, mp1, mp2);
}
break;

/*
* WM_DESTROY is sent as the last message to the window.
* Make certain WM_DESTROY is forwarded to the superclass
* so frame resources are freed.
*
* Here we have to check the view data pointer because
* the frame may have been successfully created, but
* one of the children could not be created. Under
* all other cases this check is not necessary.
*/

case WM_DESTROY:
pViewData = queryAddressBookViewDataFromFrame(hwnd);

if (pViewData)
{
ShrAddressBookDestroy(pViewData->somSelf,
hwnd, pViewData->hwndCnr);
_wpFreeMem(pViewData->somSelf, (PBYTE) pViewData);
}

ShrDefWPSCnrOwnerProc(hwnd, msg, mp1, mp2);
break;

/*
* WM_SYSCOMMAND is sent from the system menu. We only
* handle the close case.
*/

case WM_SYSCOMMAND:
if (SHORT1FROMMP(mp1) == SC_CLOSE)
WinDestroyWindow(hwnd);
else
mr = ShrDefWPSCnrOwnerProc(hwnd, msg, mp1, mp2);
break;

default:
mr = ShrDefWPSCnrOwnerProc(hwnd, msg, mp1, mp2);
break;
}

return mr;
}

/*
* ShrOpenAddressBook creates the address book view and displays it.
*/

extern HWND ShrOpenAddressBook(SOMAny *somSelf)
{
HWND hwndFrame = NULLHANDLE;
PADDRESSBOOKVIEWDATA pViewData = NULL;
BOOL bHoldingSem = FALSE;
HWND hwndNotebook;
HWND hwndCnrOwner;
HWND hwndCnr;
FRAMECDATA fcdata;
HPS hps;
SHORT sHeight = 0, sWidth = 0, sTemp;
ULONG i, ulPageId;
RECTL rectl;
SOMAny *somObject;
CNRINFO cnrInfo;
SWP swp;

/*
* NOTE! It is very important that exception handlers be coded in
* routines that request mutex semaphores! The exception condition
* should relinquish the semaphore if it was successfully
* requested. Otherwise, later requestors of the semaphore could
* wait indefinitely, typically resulting in a hang of one of the
* WPS threads or the entire WPS.
*
* ShrStartTryBlock is a macro that installs an exception
* handler for this function. See SHARE.H for more details.
*/

ShrStartTryBlock;

/*
* Create the Address Book view. It's parent/child
* window structure is:
*
* hwndFrame, unowned (ShrAddressBookFrameWndProc)
* |
* hwndNotebook, owned by hwndFrame (WC_NOTEBOOK)
* |
* hwndCnrOwner, owned by hwndNotebook (ShrFrameCnrOwnerWndProc)
* |
* hwndCnr, owned by hwndCnrOwner (WC_CONTAINER)
*/

memset(&fcdata, 0, sizeof(fcdata));
fcdata.cb = sizeof(FRAMECDATA);
fcdata.flCreateFlags = FCF_TITLEBAR | FCF_SYSMENU | FCF_MINMAX |
FCF_SIZEBORDER;

hwndFrame = WinCreateWindow(HWND_DESKTOP,
WC_FRAME, vszNullString,
WS_ANIMATE, 0,0,0,0, NULLHANDLE, HWND_TOP, 0, &fcdata, NULL);

/*
* The notebook is initially created unowned to avoid
* unnecessary updates when the first page is inserted, ie,
* WM_CONTROL (BKN_PAGESELECTED).
*
* Once all the pages are inserted, the notebook owner
* is set to the top frame (hwndFrame).
*/

hwndNotebook = WinCreateWindow(hwndFrame, WC_NOTEBOOK,
vszNullString,
(WS_VISIBLE | BKS_SPIRALBIND | BKS_SQUARETABS |
BKS_BACKPAGESBR | BKS_MAJORTABBOTTOM |
BKS_TABTEXTCENTER), 0,0,0,0,
NULLHANDLE, HWND_TOP, FID_CLIENT, NULL, NULL);

/* OS/2 GA bug:
*
* WPS assumes that the container is a direct child of
* the frame, and that the frame has a FID_SYSMENU. If
* it does not have a system menu, then the context menu
* created by clicking on the whitespace of the container
* (which brings up the address book context menu) erroneously
* sends its menu selections to the desktop in OS/2 2.0 GA.
*
* In OS/2 2.1 beta, the menu selections are sent to the
* correct window, but context menu emphasis is not set.
*
* This bug has been report to Boca (4/2/93).
*/

fcdata.flCreateFlags = 0;
hwndCnrOwner = WinCreateWindow(hwndNotebook,
vszWcFrameCnrOwner, vszNullString,
0, 0,0,0,0, hwndNotebook, HWND_TOP, 0, &fcdata, NULL);

/*
* If a container is to hold WPS objects (ie, it will be used as
* hwndCnr parameter in calls to the wpCnrInsertObject
* and wpCnrRemoveObject method), ITS OWNER AND PARENT MUST BE
* A SUBCLASS OF WC_FRAME. In addition, the container ID must
* be FID_CLIENT.
*
* WPS makes assumptions about the container owner that are only
* valid for WC_FRAME subclasses.
*/

hwndCnr = WinCreateWindow(hwndCnrOwner,
WC_CONTAINER, vszNullString,
(WS_VISIBLE | CCS_EXTENDSEL | CCS_AUTOPOSITION |
CCS_VERIFYPOINTERS | CCS_MINIRECORDCORE),
0,0,0,0, hwndCnrOwner, HWND_BOTTOM,
FID_CLIENT, NULL, NULL);

/*
* Allocate and save the view's instance data. It would be a better
* implementation to create a "view" object as a subclass of
* SOMObject with methods like _shrOpenView, _shrCloseView,
* _shrPageSelected, etc.
*
* I'll leave that as an exercise for the user.
*/

pViewData = (PADDRESSBOOKVIEWDATA)
_wpAllocMem(somSelf, sizeof(ADDRESSBOOKVIEWDATA), NULL);
pViewData->somSelf = somSelf;
pViewData->hwndNotebook = hwndNotebook;
pViewData->hwndCnr = hwndCnr;
setAddressBookViewDataFromFrame(hwndFrame, pViewData);

/*
* When a view is registered with wpRegisterView, it
* is subclassed and its window procedure pointer saved
* in a reserved window words. The WPS subclass handles
* all the CN_ messages for WPS object container records
* inserted into our contents container, along with the
* system menu code to display the context menu, and
* a few WM_COMMAND (delete, copy, move, etc).
*
* We're going to re-subclass so ShrAddressBookFrameWndProc
* gets called before the WPS version. This is necessary
* because the WPS version does not forward any
* WM_CONTROL messages to its superclass, and
* ShrAddressBookFrameWndProc needs the notebook notifications.
*
* Note the top frame was registered with the default
* frame window procedure -- that will be the superclass
* the WPS window procedure calls when it doesn't
* handle a message, ie:
*
* 1. ShrAddressBookFrameWndProc, first, followed by
* 2. WPS container owner window subclass, followed by
* 3. WC_FRAME's window procedure, followed by
* 4. WinDefWindowProc last
*
* WARNING: The notebook subclasses the page on
* BKM_SETPAGEWINDOWHWND if it is the topmost page
* and when a page is made the top page by the user clicking
* on a tab. Later, when the page is no longer the top
* page, the notebook tries to unsubclass the window
* by replacing QWP_PFNWP with the pointer that was
* there before. So WPS must subclass first so the
* notebook does not undo the WPS subclass.
*/

ShrOpeningView(somSelf, hwndFrame,
ID_OPENADDRESSINDEXVIEW, vszAddressBookViewTitle);
WinSubclassWindow(hwndFrame, ShrAddressBookFrameWndProc);

/*
* The WPS window procedure requires that the container
* owner and parent be the same. Otherwise, the container
* will not have standard WPS container behavior.
*
* Note: The BKM_SETPAGEWINDOWHWND message changes
* hwndCnrOwner's parent to one of the notebooks
* children. This ensures that the page window draws
* only within the top page boundaries.
*/

ShrCnrRegisterOwner(somSelf, hwndCnrOwner);

/*
* Add the notebook pages, set their page data, and calculate
* the size of the largest tab.
*/

hps = WinGetPS(hwndNotebook);

for (i = 0; i < CINDEXTABS; i++)
{
ulPageId = (ULONG) WinSendMsg(hwndNotebook, BKM_INSERTPAGE, 0,
MPFROM2SHORT((BKA_MAJOR|BKA_AUTOPAGESIZE), BKA_LAST));

/*
* All the pages of the notebook are associated the same
* container. The contents of the container is filtered based
* on the current top page.
*/

WinSendMsg(hwndNotebook, BKM_SETPAGEWINDOWHWND,
MPFROMP(ulPageId), MPFROMLONG(hwndCnrOwner));
WinSendMsg(hwndNotebook, BKM_SETTABTEXT,
MPFROMLONG(ulPageId), vaszIndexTabs[i]);

/*
* There is one extra page for those persons that don't
* belong in any other page (eg, '1st Federal Bank').
* All the other pages have page data that points to a
* string containing valid first characters for person's
* on their page, eg, "ABC" for the "A - C" page.
*
* See ShrFilterAddressBookRecord and the CM_FILTER
* message for more details.
*
* Note that CINDEXCHARS is one less than CINDEXTABS.
* The extra tab is for the "Misc" page, and its page data
* pointer is NULL.
*/

if (i < CINDEXCHARS)
WinSendMsg(hwndNotebook, BKM_SETPAGEDATA,
MPFROMLONG(ulPageId), vaszIndexChars[i]);

/*
* Calculate the largest tab size. All the tabs in the notebook
* are the same size, and we don't want to clip the tab text.
*
* WinDrawText determines the size needed to properly draw tab
* text. The actual drawing of the tabs is done by the notebook.
*/

rectl.xLeft = rectl.yBottom = 0;
rectl.xRight = rectl.yTop = 1;
WinDrawText(hps, -1, vaszIndexTabs[i],
&rectl, 0, 0, DT_QUERYEXTENT);

sTemp = (SHORT) (rectl.xRight - rectl.xLeft);
if (sTemp > sWidth)
sWidth = sTemp;

sTemp = (SHORT) (rectl.yTop - rectl.yBottom);
if (sTemp > sHeight)
sHeight = sTemp;
}

WinReleasePS(hps);

/*
* Set the major tab size to the size of the largest tab
* text, and set the minor tabs to (0,0) since the address
* book view doesn't use them. Note the fudge factor added
* below to allow for tab cursor emphasis.
*/

WinSendMsg(hwndNotebook, BKM_SETDIMENSIONS,
MPFROM2SHORT(sWidth+8, sHeight+8), MPFROMSHORT(BKA_MAJORTAB));
WinSendMsg(hwndNotebook, BKM_SETDIMENSIONS,
MPFROM2SHORT(0, 0), MPFROMSHORT(BKA_MINORTAB));

/*
* Set the container sort function.
*
* The container sort function assures that each record
* is sorted when inserted into the container. Setting the
* pSortRecord in the CNRINFO structure will sort the container
* as records are inserted until CM_SETCNRINFO is called again
* with CMA_PSORTRECORD and pSortRecord == NULL.
*
* CM_SORTRECORD, on the other hand, is a one-shot sort that
* doesn't affect subsequent record insertions. CM_FILTER works
* the same way as CM_SORTRECORD, ie, it must be called after
* record insertions to re-filter the records.
*/

cnrInfo.cb = sizeof(cnrInfo);
cnrInfo.pSortRecord = (PVOID) ShrSortAddressBookRecord;

WinSendMsg(hwndCnr, CM_SETCNRINFO, MPFROMP(&cnrInfo),
MPFROMLONG(CMA_PSORTRECORD));

/*
* Size and position the address book view and force an
* update of the screen so the user gets the feeling something
* is happening.
*
* Note we're saving only one set of fonts, colors, size,
* etc with WinStoreWindowPos for all the indexed views
* of address books, so we need to call
* WinQueryTaskSizePos to get a new suggestion position.
* We could save a separate window position key for each
* instance (like WPS does) using wpQueryHandle to create
* a unique key, but that wastes space in the INI file
* (and this is just an example, afterall).
*/

WinQueryTaskSizePos(NULLHANDLE, 0, &swp);
swp.hwnd = hwndFrame;
swp.hwndInsertBehind = HWND_TOP;
swp.fl |= (SWP_ZORDER | SWP_ACTIVATE | SWP_SHOW);

if (WinRestoreWindowPos(vszAppName,
vszIndexedViewWindowPosKeyName, hwndFrame))
swp.fl &= ~SWP_SIZE;

WinSetMultWindowPos(NULLHANDLE, &swp, 1);
WinUpdateWindow(hwndFrame);

/*
* It would be better if wpPopulate was called from another
* thread so we don't hold up PM while the address book (folder)
* is filled.
*
* But all the person objects are WPAbstract subclasses
* which can be created very quickly, and we don't expect a lot
* of them (famous last words).
*/

WinSetPointer(HWND_DESKTOP,
WinQuerySysPointer(HWND_DESKTOP, SPTR_WAIT, FALSE));

_wpPopulate(somSelf, NULLHANDLE, NULL, FALSE);

WinSetPointer(HWND_DESKTOP,
WinQuerySysPointer(HWND_DESKTOP, SPTR_ARROW, FALSE));

/*
* Fill the address book view container with the person objects.
* Request its semaphore to avoid objects being added/removed while
* in the loop below.
*/

bHoldingSem = !_wpRequestObjectMutexSem(somSelf, SEM_INDEFINITE_WAIT);

if (bHoldingSem)
{
somObject = _wpQueryContent(somSelf, NULL, QC_First);
while (somObject)
{
ShrCnrInsertObject(somObject, hwndCnr);

/*
* Each call to wpPopulate increments the object's
* lock count. The locking count is used to determine
* when an object is ready for garbage collection.
*
* If you're going to access an object from a second thread,
* use wpRequestObjectMutexSem and wpReleaseObjectMutexSem.
* The wpRequestObjectMutexSem method will will prevent
* other threads from modifying your object's instance data
* while you do (of course, this assumes new methods you add
* that query/set instance data use wpRequestObjectMutexSem
* and wpReleaseObjectMutexSem, too).
*
* WPS is extremely multithreaded. The
* wpRequest/ReleaseObjectMutexSem methods are very
* important. It is wise to request/release the object
* mutex semaphore in each method that queries/sets object
* instance data. In addition, the method should include
* exception protection should the method trap to make
* certain it releases the object's semaphore.
*/

_wpUnlockObject(somObject);

somObject = _wpQueryContent(somSelf, somObject, QC_Next);
}

bHoldingSem = _wpReleaseObjectMutexSem(somSelf);
}

/*
* Now that the address book view container is filled, update the
* top page. We put off setting the notebook owner till now to
* prevent the notebook from sending a page selection notification
* when we added the first page.
*/

WinSetOwner(hwndNotebook, hwndFrame);
ShrAddressBookUpdateTopPage(somSelf, hwndNotebook, hwndCnr);

/*
* Add interest in the address book so the open view will be
* notified if something of interest occurs to it (eg, a person
* is added to the address book).
*
* Interest is removed when the frame is destroyed.
*/

_shrAddInterestedWindow(_shrQueryNotifier(somSelf), hwndFrame);

ShrEndTryBlock;
return hwndFrame;

/*
* Exception handling code for this function goes here.
*/

OnException:
if (bHoldingSem)
bHoldingSem = _wpReleaseObjectMutexSem(somSelf);

if (pViewData)
_wpFreeMem(somSelf, (PBYTE) pViewData);

if (hwndFrame)
{
/*
* Set the view instance data pointer to NULL since
* it is tested in WM_DESTROY.
*/

setAddressBookViewDataFromFrame(hwndFrame, NULL);
WinDestroyWindow(hwndFrame);
}

ShrEndTryBlock;
return NULLHANDLE;
}


  3 Responses to “Category : OS/2 Files
Archive   : SHR93.ZIP
Filename : ADDRBKV.C

  1. Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/