On Jun 1, 2008, at 12:19 PM, John Love wrote:
1) I found the culprit on the sheet appearing as a separate window,
and not
a sheet .. you were right cause somehow the passed docWindow was
apparently
nil .. anyway, called my sheet routine from a different part of
MyDocument.m
.. and now the sheet appears as a sheet.
2) the problem remaining centers on accessing the various buttons on
the
alert sheet
You have several issues here:
First, you can't cast the NSAlert to an NSWindow. The
endCalculateSheet:code:info: method must have the same types as the
prototype.
Second, the returnCodes for the buttons will be
NSAlertFirstButtonReturn, NSAlertSecondButtonReturn and
NSAlertThirdButtonReturn. The ones you used are only valid if you call
alertWithMessageText:defaultButton:alternateButton:otherButton:informativeTextWithFormat
:.
Third, you don't need to close or orderOut the NSAlert because it will
automatically close when your endCalculateSheet:code:info: method
finishes.
See below:
- (void) showCalculateSheet:(NSWindow*)docWindow
{
NSAlert *calculateSheet = [[[NSAlert alloc] init] autorelease];
[calculateSheet addButtonWithTitle:@"Continue"];
[calculateSheet addButtonWithTitle:@"Stop and save"];
[calculateSheet addButtonWithTitle:@"Stop and don't save"];
[calculateSheet setMessageText:@"Do you wish to continue
calculating?"];
[calculateSheet setInformativeText:@"You have not finished
calculating your Spreadsheet."];
[calculateSheet setAlertStyle:NSWarningAlertStyle];
[calculateSheet beginSheetModalForWindow:docWindow
modalDelegate:self
didEndSelector:@selector(endCalculateSheet:code:info:)
contextInfo:docWindow];
}
- (void) endCalculateSheet:(NSAlert*)theSheet code:(int)returnCode
info:(void*)contextInfo
{
if (returnCode == NSAlertFirstButtonReturn) // "Continue"
{
NSLog(@"Continue button clicked");
}
else if (returnCode == NSAlertSecondButtonReturn) // "Stop and
save"
{
NSLog(@"Stop and save button clicked");
}
else if (returnCode == NSAlertThirdButtonReturn) // "Stop and don't
save"
{
NSLog(@"Stop and don't save button clicked");
}
}
--Nathan
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