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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<!-- BEGIN META TAG INFO -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
<link rel="find" href="http://developer.apple.com/search/">
<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
<!-- END META TAG INFO -->
<!-- BEGIN TITLE -->
<title>ThreadsImporter - /MyDocument.m</title>
<!-- END TITLE -->
<script language="JavaScript">
function JumpToNewPage() {
window.location=document.scpopupmenu.gotop.value;
return true;
}
</script>
</head>
<!-- BEGIN BODY OPEN -->
<body>
<!--END BODY OPEN -->
<!-- START CENTER OPEN -->
<center>
<!-- END CENTER OPEN -->
<!-- BEGIN LOGO AND SEARCH -->
<!--#include virtual="/includes/adcnavbar"-->
<!-- END LOGO AND SEARCH -->
<!-- START BREADCRUMB -->
<div id="breadcrumb">
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td scope="row"><img width="340" height="10" src="images/1dot.gif" alt=""></td>
<td><img width="340" height="10" src="images/1dot.gif" alt=""></td>
</tr>
<tr valign="middle">
<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/QuickTime/index.html">QuickTime</a> > <a href="../../samplecode/QuickTime/idxCocoa-date.html">Cocoa</a> > <A HREF="javascript:location.replace('index.html');">ThreadsImporter</A> >
</td>
</tr>
<tr>
<td colspan="2" scope="row"><img width="680" height="35" src="images/1dot.gif" alt=""></td>
</tr>
</table>
</div>
<!-- END BREADCRUMB -->
<!-- START MAIN CONTENT -->
<!-- START TITLE GRAPHIC AND INTRO-->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td><h1><div id="pagehead">ThreadsImporter</div></h1></td>
</tr>
</table>
<!-- END TITLE GRAPHIC AND INTRO -->
<!-- START WIDE COLUMN -->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td id="scdetails">
<h2>/MyDocument.m</h2>
<form name="scpopupmenu" onSubmit="return false;" method=post>
<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/AutoRunSettings.h</option>
<option value="listing2.html">/AutoRunSettings.m</option>
<option value="listing3.html">/DataRefUtilities.c</option>
<option value="listing4.html">/DataRefUtilities.h</option>
<option value="listing5.html">/FileObject.h</option>
<option value="listing6.html">/FileObject.m</option>
<option value="listing7.html">/main.m</option>
<option value="listing8.html">/MyDocument.h</option>
<option value="listing9.html">/MyDocument.m</option>
<option value="listing10.html">/MyQuickDrawView.h</option>
<option value="listing11.html">/MyQuickDrawView.m</option>
<option value="listing12.html">/QTDataRef.c</option>
<option value="listing13.html">/QTDataRef.h</option>
<option value="listing14.html">/ThreadData.h</option>
<option value="listing15.html">/URLUtilities.c</option>
<option value="listing16.html">/URLUtilities.h</option>
<option value="listing17.html">/WorkerThread.c</option>
<option value="listing18.html">/WorkerThread.h</option></select>
</p>
</form>
<p><strong><a href="ThreadsImporter.zip">Download Sample</a></strong> (“ThreadsImporter.zip”, 218.2K)<BR>
<strong><a href="ThreadsImporter.dmg">Download Sample</a></strong> (“ThreadsImporter.dmg”, 282.3K)</p>
<!--
<p><strong><a href="#">Download Sample</a></strong> (“filename.sit”, 500K)</p>
-->
</td>
</tr>
<tr>
<td scope="row"><img width="680" height="10" src="images/1dot.gif" alt=""><br>
<img height="1" width="680" src="images/1dot_919699.gif" alt=""><br>
<img width="680" height="20" src="images/1dot.gif" alt=""></td>
</tr>
<tr>
<td scope="row">
<!--googleon: index -->
<pre class="sourcecodebox">/*
File: MyDocument.m
Description: Document-specific code for thread-safety test application.
Author: QTEngineering, dts
Copyright: © Copyright 2003-2004 Apple Computer, Inc. All rights reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
("Apple") in consideration of your agreement to the following terms, and your
use, installation, modification or redistribution of this Apple software
constitutes acceptance of these terms. If you do not agree with these terms,
please do not use, install, modify or redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject
to these terms, Apple grants you a personal, non-exclusive license, under Apple's
copyrights in this original Apple software (the "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or implied,
are granted by Apple herein, including but not limited to any patent rights that
may be infringed by your derivative works or by other works in which the Apple
Software may be incorporated.
The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
(INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Change History (most recent first): <1> dts 11/16/03 initial release
*/
//////////
//
// header files
//
//////////
#import <Appkit/NSApplication.h>
#import <Foundation/NSRunLoop.h>
#import "MyDocument.h"
#import "AutoRunSettings.h"
#import "DataRefUtilities.h"
#import "WorkerThread.h"
//////////
//
// non-Controller function declarations
//
//////////
static OSErr importTheImage (ThreadData *threadData);
static pascal OSErr imageProgressProc (short message, Fixed percentDone, long refCon);
void workerActionRoutine (void *refcon, WorkerRequestRef request);
void workerCancelRoutine (void *refcon, WorkerRequestRef request);
void workerResponseMainThreadCallback (void *refcon, WorkerRequestRef request);
//////////
//
// static global variables
//
//////////
static ICMProgressUPP gImageProgressProcUPP = NULL; // UPP for our progress procedure
static UInt32 gNumIteration = 0;
static long gOSVersion = 0;
//////////
//
// MyDocument implementation
//
//////////
@implementation MyDocument
- (id)init
{
WorkerThreadRef outWorker = NULL;
[super init];
if (self) {
autoRunSettings = [[AutoRunSettings alloc] init];
_threadModelTag = USE_POSIX_THREAD; // use POSIX threads by default
_dhTag = USE_FILE_DH; // use file data handler by default
_onlySafeComps = YES; // use only thread-safe components by default
// allocate progress proc UPP, if necessary
if (gImageProgressProcUPP == NULL)
gImageProgressProcUPP = NewICMProgressUPP(imageProgressProc);
// get the current version of the OS we're running on
Gestalt(gestaltSystemVersion, &gOSVersion);
if (gOSVersion < 0x00001030) {
// thread-safe components are available only in 10.3 (Panther) and beyond; for earlier systems,
// don't allow POSIX threads
_threadModelTag = USE_MAIN_THREAD;
}
// add a notification observer to monitor selections in the file table view
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(tableViewSelectionDidChange:)
name:NSTableViewSelectionDidChangeNotification
object:tableView];
// create a worker thread handler
createWorkerThread(
workerActionRoutine,
workerCancelRoutine,
workerResponseMainThreadCallback,
(void *)self,
&outWorker);
_worker = outWorker;
}
return self;
}
- (void)dealloc
{
// stop auto-running
[self setAutoRunTimer:nil];
// remove the worker thread handler
releaseWorkerThread(_worker);
// remove the notification that monitors selections in the file table view
[[NSNotificationCenter defaultCenter] removeObserver:self
name:NSTableViewSelectionDidChangeNotification
object:tableView];
// clean up the list of images
[self setFileArray:nil];
// dispose of the thread data and any memory it accesses
if (_currThreadData != NULL)
if (_currThreadData->threadModelTag == USE_MAIN_THREAD)
[self setCurrThreadData:nil];
[autoRunSettings release];
[super dealloc];
}
- (NSString *)windowNibName
{
return @"MyDocument";
}
- (void)windowControllerDidLoadNib:(NSWindowController *) aController
{
[quickdrawView setDocument: self];
[super windowControllerDidLoadNib:aController];
}
- (void)showWindows
{
[super showWindows];
[self updateWindowTitle];
}
- (NSData *)dataRepresentationOfType:(NSString *)aType
{
return nil;
}
- (BOOL)loadDataRepresentation:(NSData *)data ofType:(NSString *)aType
{
return YES;
}
//////////
//
// window delegate
//
//////////
- (NSSize)windowWillResize:(NSWindow *)sender toSize:(NSSize)frameSize
{
// if the image is being drawn we don't want
// to resize the window untill we're done
if (_doneDrawing == false) {
NSRect theFrame = [sender frame];
NSSize theFrameSize = {NSWidth(theFrame), NSHeight(theFrame)};
return theFrameSize;
}
return frameSize;
}
//////////
//
// window notifications
//
//////////
- (void)windowWillClose:(NSNotification*)notification
{
// note that NSTimer's scheduledTimerWithTimeInterval method increments the retain count of its target,
// so we cannot release a timer in our dealloc method (since that method will never get called if at least one timer is active...)
// stop the timer
[self setAutoRunTimer:nil];
}
- (void)windowWillMiniaturize:(NSNotification *)aNotification
{
// if we're autorunning, stop
if ([self autorunTimer] != nil) {
[self setAutoRunTimer:nil];
[autorunBtn setTitle:@"Auto-Run"];
}
}
//////////
//
// the main drawing routine
//
// draw the image into the NSQuickDrawView in the document window; this method is *always* called on the main thread
//
//////////
- (void)updateQDImageView:(ThreadData *)threadData updateTime:(BOOL)doUpdateTime
{
GrafPtr port = NULL;
CGrafPtr savedPort = NULL;
GDHandle savedGDevice = NULL;
Rect srcRect;
Rect dstRect;
Rect viewRect;
PixMapHandle srcPixMap = NULL;
PixMapHandle dstPixMap = NULL;
UnsignedWide endTime;
float imageWidth, imageHeight;
float viewWidth, viewHeight;
float newWidth, newHeight;
NSMutableString *sizeString = [NSMutableString string];
if (threadData == NULL)
return;
_doneDrawing = false; // a flag for cycleImages: method
port = [quickdrawView qdPort];
if (port == NULL)
return;
// update the elapsed time indicator, if so instructed
if (doUpdateTime) {
Microseconds(&endTime);
[timeField setDoubleValue: endTime.lo - threadData->startTime.lo];
}
// stop the progress indicator
[progressBar stopAnimation:nil];
// display the natural size of the image
[sizeString appendFormat:@"%i", threadData->naturalWidth];
[sizeString appendString:@" x "];
[sizeString appendFormat:@"%i", threadData->naturalHeight];
[sizeField setStringValue:sizeString];
// get the current port and device
GetGWorld(&savedPort, &savedGDevice);
// set the NSQuickDrawView port to be the current port
SetGWorld(port, NULL);
// erase the NSQuickDrawView
GetPortBounds(port, &viewRect);
EraseRect(&viewRect);
// set the thread data passed in as the current thread data
[self setCurrThreadData:threadData];
if (threadData->gWorld != NULL) {
GetPortBounds(threadData->gWorld, &srcRect);
srcPixMap = GetGWorldPixMap(threadData->gWorld);
LockPixels(srcPixMap);
// scale the destination rectangle so that the image fits into the NSQuickDrawView while retaining its aspect ratio
imageWidth = srcRect.right - srcRect.left;
imageHeight = srcRect.bottom - srcRect.top;
viewWidth = viewRect.right - viewRect.left;
viewHeight = viewRect.bottom - viewRect.top;
dstRect.top = 0;
dstRect.left = 0;
if ((threadData->naturalWidth <= viewWidth) && (threadData->naturalHeight <= viewHeight)) {
dstRect.right = imageWidth;
dstRect.bottom = imageHeight;
} else {
float imageRatio = imageWidth / imageHeight;
float viewRatio = viewWidth / viewHeight;
if (imageRatio > viewRatio) {
// the image is wider than will fit; rescale
newHeight = viewWidth / imageRatio;
newWidth = newHeight * imageRatio;
dstRect.right = newWidth;
dstRect.bottom = newHeight;
} else {
// the image is taller than will fit; rescale
newWidth = viewHeight * imageRatio;
newHeight = newWidth / imageRatio;
dstRect.right = newWidth;
dstRect.bottom = newHeight;
}
}
dstPixMap = GetGWorldPixMap(port);
LockPixels(dstPixMap);
CopyBits((BitMapPtr)*srcPixMap, (BitMapPtr)*dstPixMap, &srcRect, &dstRect, srcCopy, NULL);
UnlockPixels(srcPixMap);
UnlockPixels(dstPixMap);
}
// make sure our drawing appears in the window
QDFlushPortBuffer(port, NULL);
// restore the original port and device
SetGWorld(savedPort, savedGDevice);
_doneDrawing = true; // a flag for cycleImages: method
}
- (void)cycleImages:(NSTimer *)timer
{
UInt32 currRow = [tableView selectedRow];
// if the current image has been drawn, select the next item in the list of images; at the end, loop back to the beginning
if (_doneDrawing) {
if (_randomAutoRun) {
// select a random row between 0 and [tableView numberOfRows] - 1
double randNum = (rand()/(double)RAND_MAX) * [tableView numberOfRows];
UInt32 nextRow = (UInt32)randNum;
if (currRow == nextRow) {
nextRow++;
if (nextRow >= [tableView numberOfRows]) {
nextRow = 0;
}
}
_doneDrawing = false;
[tableView selectRow:nextRow byExtendingSelection:NO];
} else {
if ((gNumIteration < _autoRunIterations) || (_autoRunIterations == 0)) {
currRow++;
if (currRow == [tableView numberOfRows]) {
currRow = 0;
gNumIteration++;
}
_doneDrawing = false;
[tableView selectRow:currRow byExtendingSelection:NO];
} else {
// stop the auto-run
[self setAutoRunTimer:nil];
[autorunBtn setTitle:@"Auto-Run"];
}
}
}
}
//////////
//
// button action handlers
//
//////////
- (IBAction)autoRun:(id)sender {
gNumIteration = 0; // reset iteration counter
[tableView selectRow:0 byExtendingSelection:NO];
if (_autorunTimer == nil) {
/*[self setAutoRunTimer:[NSTimer
scheduledTimerWithTimeInterval:kAutoRunInterval
target:self
selector:@selector(cycleImages:)
userInfo:nil
repeats:YES]];*/
[self setAutoRunTimer:[NSTimer
timerWithTimeInterval:kAutoRunInterval
target:self
selector:@selector(cycleImages:)
userInfo:nil
repeats:YES]];
[[NSRunLoop currentRunLoop] addTimer:[self autorunTimer] forMode:NSDefaultRunLoopMode];
[[NSRunLoop currentRunLoop] addTimer:[self autorunTimer] forMode:NSEventTrackingRunLoopMode];
[autorunBtn setTitle:@"Stop"];
} else {
[self setAutoRunTimer:nil];
[autorunBtn setTitle:@"Auto-Run"];
}
}
- (IBAction)selectFolder:(id)sender
{
NSOpenPanel *oPanel = [NSOpenPanel openPanel];
NSString *filename;
NSEnumerator *enumerator = nil;
UInt32 count = 0;
UInt32 dirPathLength = 0;
int result;
// elicit a folder from the user
[oPanel setCanChooseDirectories:YES];
[oPanel setCanChooseFiles:NO];
[oPanel setAllowsMultipleSelection:NO];
result = [oPanel runModalForTypes:nil];
if (result != NSOKButton)
return;
// no current thread data yet...
_currThreadData = NULL;
// enable the auto-run button but disable the select-folder button
[autorunBtn setEnabled:YES];
[folderBtn setEnabled:NO];
// allocate and retain a file array
[self setFileArray:[NSMutableArray array]];
dirPathLength = [[[oPanel filenames] objectAtIndex:0] cStringLength];
// put filenames and full pathnames into the file array
enumerator = [[[NSFileManager defaultManager] directoryContentsAtPath: [[oPanel filenames] objectAtIndex:0]] objectEnumerator];
while (filename = [enumerator nextObject]) {
if ([filename length] > 0) {
// don't allow any "hidden" files
if ([filename characterAtIndex:0] == '.')
continue;
FileObject *aFileObject = [[FileObject alloc] init];
char *cFileName, *cPathName;
cFileName = malloc([filename cStringLength] + 1);
cPathName = malloc([filename cStringLength] + dirPathLength + 2);
if ((cFileName != NULL) && (cPathName != NULL)) {
[filename getCString:cFileName];
[[[oPanel filenames] objectAtIndex:0] getCString:cPathName];
*(cPathName + dirPathLength) = '/';
[filename getCString:cPathName + dirPathLength + 1];
[aFileObject setPathName: cPathName];
[aFileObject setFileName: cFileName];
}
// don't put directories in the list
NSDictionary *fattrs = [[NSFileManager defaultManager] fileAttributesAtPath:[NSString stringWithCString:cPathName] traverseLink:YES];
if (fattrs) {
NSString *fileType = [fattrs objectForKey:NSFileType];
if (fileType == NSFileTypeRegular) {
[_fileArray insertObject:aFileObject atIndex:count];
count++;
}
[aFileObject release]; // was retained by the array, so release this instance
}
}
}
// select the first item in the list, and reload the data
[tableView selectRow:0 byExtendingSelection:NO];
[tableView reloadData];
[[tableView window] makeFirstResponder:tableView];
[self updateWindowTitle];
}
//////////
//
// table notification handler and data source methods
//
//////////
- (void)tableViewSelectionDidChange:(NSNotification *)aNotification
{
ThreadData *threadData = NULL;
WorkerRequestRef wkrRequest = NULL;
OSErr err = noErr;
// make sure it's a notification for me
if ([aNotification object] != tableView)
return;
// initialize the elapsed time indicator
[timeField setIntValue: 0];
// clear the status field
[statusField setStringValue:@""];
// determine whether an image is currently being imported; if so, try to cancel the import
// if it's not on the main thread
if (_currThreadData != NULL) {
if (_currThreadData->threadModelTag == USE_POSIX_THREAD) {
if (_currThreadData->busy) {
// cancel the current worker request
wkrRequest = _currThreadData->request;
if (wkrRequest != NULL) {
cancelWorkerRequest(wkrRequest);
}
}
} else if (_currThreadData->threadModelTag == USE_MAIN_THREAD) {
// dispose of the thread data and any memory it accesses
[self setCurrThreadData:NULL];
}
}
// load the image currently selected in the list of files
_fileObject = [_fileArray objectAtIndex:[tableView selectedRow]];
if (_fileObject) {
// start the progress indicator animation
[progressBar startAnimation:nil];
// each import operation gets its own thread data
threadData = calloc(1, sizeof(ThreadData));
if (threadData == NULL)
return;
// configure the thread data to the current settings
threadData->dhTag = _dhTag;
threadData->threadModelTag = _threadModelTag;
threadData->fileObject = _fileObject;
threadData->imageRect = [self qdViewBounds];
threadData->onlySafeComps = _onlySafeComps;
[self setCurrThreadData:threadData];
switch (_threadModelTag) {
case USE_MAIN_THREAD:
// import the file on the main thread
threadData->busy = true;
// in theory, we could force threadData->onlySafeComps to be false here,
// in which case we can dispense with the retry logic just below;
// for demo/testing purposes, I'm going to follow the user's explicit selection
importTheImage(threadData);
if (threadData->retry) {
[statusField setStringValue:@"Retried import on main thread with any components!"];
threadData->onlySafeComps = false;
importTheImage(threadData);
}
threadData->busy = false;
[self updateQDImageView:threadData updateTime:YES];
break;
case USE_POSIX_THREAD:
// import the file on a pthread; create, configure, and send a new worker request
err = createWorkerRequest(_worker, &wkrRequest);
if (err == noErr) {
setWorkerRequestThreadData(wkrRequest, threadData);
setWorkerRequestDoc(wkrRequest, (UInt32)self);
threadData->request = wkrRequest;
}
if (err == noErr) {
threadData->busy = true;
err = sendWorkerRequest(wkrRequest);
}
break;
}
}
}
// table data source methods
- (int)numberOfRowsInTableView:(NSTableView *)tableView
{
return [[self fileArray] count];
}
- (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(id)column row:(int)row
{
FileObject *aFileObject;
aFileObject = [[self fileArray] objectAtIndex:row];
return [NSString stringWithCString: [aFileObject fileName]];
}
- (BOOL)windowShouldClose:(id)sender
{
WorkerRequestRef wkrRequest = NULL;
// the window wants to close; make sure the threads are closed down
if (_currThreadData != NULL) {
if (_currThreadData->threadModelTag == USE_POSIX_THREAD) {
if (_currThreadData->busy) {
// cancel the current worker request
wkrRequest = _currThreadData->request;
if (wkrRequest != NULL) {
// it's not safe to close the document window right now; cancel any current request
// and mark the document as wanting to be closed when it's safe to do so
cancelWorkerRequest(wkrRequest);
_currThreadData->closeWhenSafe = YES;
return NO;
}
}
} else if (_currThreadData->threadModelTag == USE_MAIN_THREAD) {
// dispose of the thread data and any memory it accesses
[self setCurrThreadData:NULL];
}
}
return YES;
}
//////////
//
// auto-run settings
//
//////////
- (void)setIterations:(UInt32)iterations
{
_autoRunIterations = iterations;
}
- (void)setRandom:(UInt32)random
{
_randomAutoRun = random;
}
//////////
//
// menu validator and handlers
//
//////////
- (BOOL)validateMenuItem:(NSMenuItem *)item {
BOOL isValid = NO;
SEL action = [item action];
if ((action == @selector(usePOSIXThreads:)) ||
(action == @selector(useMainThread:))) {
[item setState: ([item tag] == _threadModelTag) ? NSOnState : NSOffState];
isValid = YES;
// disable POSIX threads on systems earlier than 10.3
if (gOSVersion < 0x00001030)
if (action == @selector(usePOSIXThreads:))
isValid = NO;
}
if ((action == @selector(useHandleDH:)) ||
(action == @selector(usePointerDH:)) ||
(action == @selector(useFileDH:)) ||
(action == @selector(useURLDH:))) {
[item setState: ([item tag] == _dhTag) ? NSOnState : NSOffState];
isValid = YES;
}
if (action == @selector(toggleThreadGuard:)) {
[item setState: _onlySafeComps ? NSOnState : NSOffState];
isValid = YES;
}
if (action == @selector(doAutoRunSettingsBox:)) {
isValid = YES;
}
return isValid;
}
- (IBAction)useHandleDH:(id)sender
{
_dhTag = USE_HANDLE_DH;
[self updateWindowTitle];
}
- (IBAction)usePointerDH:(id)sender
{
_dhTag = USE_POINTER_DH;
[self updateWindowTitle];
}
- (IBAction)useFileDH:(id)sender
{
_dhTag = USE_FILE_DH;
[self updateWindowTitle];
}
- (IBAction)useURLDH:(id)sender
{
_dhTag = USE_URL_DH;
[self updateWindowTitle];
}
- (IBAction)usePOSIXThreads:(id)sender
{
_threadModelTag = USE_POSIX_THREAD;
[self updateWindowTitle];
}
- (IBAction)useMainThread:(id)sender
{
_threadModelTag = USE_MAIN_THREAD;
[self updateWindowTitle];
}
- (IBAction)toggleThreadGuard:(id)sender
{
_onlySafeComps = !_onlySafeComps;
[self updateWindowTitle];
}
- (IBAction)doAutoRunSettingsBox:(id)sender
{
// show the autorun settings box
[autoRunSettings showSettingsPanel];
}
- (void)updateWindowTitle
{
// set the window title to reflect the current thread/data handler/etc. settings
NSMutableString *titleString = [NSMutableString string];
switch (_threadModelTag) {
case USE_POSIX_THREAD:
[titleString appendFormat: @"PThreads * "];
break;
case USE_MAIN_THREAD:
[titleString appendFormat: @"Main Thread * "];
}
switch (_dhTag) {
case USE_HANDLE_DH:
[titleString appendFormat: @"Handle DH * "];
break;
case USE_POINTER_DH:
[titleString appendFormat: @"Pointer DH * "];
break;
case USE_FILE_DH:
[titleString appendFormat: @"File DH * "];
break;
case USE_URL_DH:
[titleString appendFormat: @"URL DH * "];
}
if (_onlySafeComps)
[titleString appendFormat: @"Safe Components"];
else
[titleString appendFormat: @"Any Components"];
[[folderBtn window] setTitle:titleString];
}
//////////
//
// getters and setters
//
//////////
- (id)statusField;
{
return statusField;
}
- (Rect)qdViewBounds
{
GrafPtr port = NULL;
Rect viewRect = {0, 0, 0, 0};
port = [quickdrawView qdPort];
GetPortBounds(port, &viewRect);
return viewRect;
}
- (void *)currThreadData
{
return _currThreadData;
}
- (void)setCurrThreadData:(ThreadData *)threadData
{
if (_currThreadData && (_currThreadData != threadData) && (!_currThreadData->busy)) {
[self disposeThreadData:_currThreadData];
}
_currThreadData = threadData;
}
- (void)disposeThreadData:(ThreadData *)threadData
{
if (threadData) {
if (threadData->gWorld)
DisposeGWorld(threadData->gWorld);
free(threadData);
}
}
- (NSMutableArray *)fileArray
{
return _fileArray;
}
- (void)setFileArray:(NSMutableArray *)array
{
[_fileArray release];
[array retain];
_fileArray = array;
}
- (NSTimer *)autorunTimer
{
return _autorunTimer;
}
- (void)setAutoRunTimer:(NSTimer *)theTimer
{
[_autorunTimer invalidate];
[_autorunTimer release];
[theTimer retain];
_autorunTimer = theTimer;
}
@end
//////////
//
// static functions
//
//////////
static OSErr importTheImage (ThreadData *threadData)
{
FileObject *aFileObject = nil;
FSSpec fileSpec;
FSRef fileRef;
Rect naturalBounds;
Rect qdViewBounds;
Rect dstRect;
OSType drType;
UInt32 dhTag;
char strLenByte;
ICMProgressProcRecord procRec;
GraphicsImportComponent importer = 0;
void * imagePointer = NULL;
Handle imageHandle = NULL;
Handle drHandle = NULL;
ComponentResult err = noErr;
if (threadData == NULL)
return paramErr;
aFileObject = threadData->fileObject;
if (aFileObject == nil) return paramErr;