Ross - That looks like a good solution, basically, I'm highlighting the
background versus the actual text. Very clever. This approach has the added
advantage of preventing the user from accidentally deleting text because it's
not a real highligh. I'll try this out tonight.
Using this code I was able to highlight text in an textView but again, it's
highlighting the text, not the background:
NSString *s = [textView string];
NSMutableArray *selRangeArray = [[NSMutableArray alloc] init];
if ([s length] > 0) {
NSRange r = [s rangeOfString:searchText
options:NSCaseInsensitiveSearch range:NSMakeRange(0, [s length])];
while (r.location != NSNotFound) {
[selRangeArray addObject:[NSValue
valueWithRange:r]];
NSUInteger newStart = r.location + r.length;
r = [s rangeOfString:searchText
options:NSCaseInsensitiveSearch range:NSMakeRange(newStart, [s length] -
newStart)];
}
if ([selRangeArray count] > 0) {
[textView setSelectedRanges:selRangeArray];
}
}
On Sep 6, 2010, at 1:19 PM, Ross Carter wrote:
> On Sep 5, 2010, at 7:33 PM, Brad Stone wrote:
>
>> I want to highlight different substrings contained in controls in a window
>> (two different comboBoxes for example) programmatically when the user is
>> searching for a subString. I can do this for one comboBox but not both
>> simultaneously. Here's one.
>>
>> NSString *s = [titleComboBox stringValue];
>> NSRange r = [s rangeOfString:searchText options:NSCaseInsensitiveSearch
>> range:NSMakeRange(0, [s length])];
>> [titleComboBox selectText:w];
>> if (r.location != NSNotFound) {
>> // this is needed to select the substring
>> NSText *textEditor = [w fieldEditor:YES forObject:titleComboBox];
>> [textEditor setSelectedRange:r];
>> }
>>
>> But this only highlights the text in the titleComboBox. If I then repeat
>> this to highlight the text in the categoryComboBox by repeating the code,
>> titleComboBox gets deselected and categoryComboBox gets selected. I want to
>> highlight them both simultaneously. I'd also rather use the big yellow
>> highlight like with the find panel (but that's later).
>>
>> Is this possible?
>
> Your code will not work because there can be only one active field editor at
> a time, and you are controlling the text by manipulating the selectedRange
> property of the field editor.
>
> I would be inclined to try using attributed strings to show the selection.
> Maybe something like this:
>
> if (r.location != NSNotFound) {
> NSMutableAttributedString *stringWithSelection =
> [[NSMutableAttributedString alloc] initWithString:s];
> [stringWithSelection addAttribute: NSBackgroundColorAttributeName
> value:[NSColor yellowColor] range:r];
> // set control value to stringWithSelection, using whatever technique
> is appropriate
> [stringWithSelection release];
> }
>
> To deselect, just set the control value to [[control attributedStringValue]
> string].
>
> There are other ways to do what you need. This might be the most
> straightforward.
>
> -Ross
> _______________________________________________
>
> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>
> Please do not post admin requests or moderator comments to the list.
> Contact the moderators at cocoa-dev-admins(at)lists.apple.com
>
> Help/Unsubscribe/Update your Subscription:
> http://lists.apple.com/mailman/options/cocoa-dev/cocoa-dev%40softraph.com
>
> This email sent to cocoa-...@softraph.com
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
