Re: Problems with image cell in table view (was: Re: NSImage -isValid not always right?)
Re: Problems with image cell in table view (was: Re: NSImage -isValid not always right?)
- Subject: Re: Problems with image cell in table view (was: Re: NSImage -isValid not always right?)
- From: "Peesapaty Ramesh" <email@hidden>
- Date: Sat, 13 Apr 2002 16:24:51 +0530
hi joar,
i am able to show images in tableview.
thanks for your inputs
regards
ramesh
[TABLE NOT SHOWN]
Hello Ramesh,
You don't say where in your code the snippet is from. It doesn't seem to
really fit anywhere unfortunately... :)
I would set the cell type for columns in awakeFromNib - before they are
used, but after they have been loaded from the nib. You should not set
an image for the cell at this point - that is something you do later on
in the table data source methods. Something like this:
- (void) awakeFromNib
{
// Your other stuff
// Set the cell type
{
NSTableColumn *col = [myTableView
tableColumnWithIdentifier:@"ImageColumn"];
NSImageCell *myImageCell = [[NSImageCell alloc] init];
[col setDataCell:[myImageCell autorelease]];
}
}
- (id)tableView:(NSTableView *)aTableView
objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex
{
if ([[aTableColumn identifier] isEqualToString:@"ImageColumn"]) {
// Here you must make sure to return a proper object value
for the
// cell, or else you will get errors
return [NSImage imageNamed:@"image.giff"];
} else {
NSLog(@"This should never happen");
return nil;
}
}
j o a r
On Friday, April 12, 2002, at 06:56 , Peesapaty Ramesh wrote:
>
Hi,
>
i am trying to display a image in tableView .
>
the code is as follows.
>
>
>
NSImageCell *myImageCell;
>
NSTableColumn *col = [folderList
>
tableColumnWithIdentifier:@"folder"];
>
NSImage *myImage = [[NSImage alloc]
>
initWithContentsOfFile:@"folder.gif"];
>
>
if ([myImage isValid]){
>
NSLog(@"Image is valid");
>
}
>
if ([myImage isKindOfClass:[NSImage class]]){
>
NSLog(@"YES");
>
}
>
myImageCell = [[NSImageCell alloc] init];
>
[myImageCell setImage:myImage];
>
[col setDataCell:myImageCell];
>
>
when it is setting value in the tablecolumn it is giving following
>
error.
>
"NSImageCell's object value must be an NSImage."
>
am i missing anything.
>
>
thanks in advance.
>
Ramesh
>
_______________________________________________
>
cocoa-dev mailing list | email@hidden
>
Help/Unsubscribe/Archives:
>
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
>
Do not post admin requests to the list. They will be ignored.
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.