Re: NSTextField didn't change color on set...Color: while editing.

[Ivan Vučica]

Hi,

Let's keep the conversation on the mailing list :)

If GNUstep is tracking Cocoa, then this is the correct behavior. I didn't know about -fieldEditor:forObject: (thanks!) so I examined the first responder. For the sake of documentation, I'll post the code here. Again, it's for OS X but I suspect that it should work under GS, too.

Providing a helper function that updates both the text field and the editor's background color might be an interesting GNUstep-specific extension to NSTextField class.

        [contactFirstNameTextField setBackgroundColor:[NSColor redColor]];

        [contactLastNameTextField setBackgroundColor:[NSColor redColor]];

        [contactCompanyTextField setBackgroundColor:[NSColor redColor]];

        if ([self.window.firstResponder isKindOfClass:[NSText class]]) 

        {

            NSText *textBox = (NSText*)self.window.firstResponder;

            /*

            for (NSResponder *parent = textBox.nextResponder; parent; parent = parent.nextResponder) 

            {

                if(parent == contactFirstNameTextField || parent == contactLastNameTextField || parent == contactCompanyTextField)

                {

                    if([textBox.nextResponder respondsToSelector:@selector(setBackgroundColor:)])

                    {

                        [(id)textBox.nextResponder setBackgroundColor:[NSColor redColor]];

                    }

                    break;

                }

            }

             */

            NSTextField *parent = [textBox parentTextField];

            if(parent == contactFirstNameTextField || parent == contactLastNameTextField || parent == contactCompanyTextField)

            {

                if([textBox.nextResponder respondsToSelector:@selector(setBackgroundColor:)])

                {

                    [(id)textBox.nextResponder setBackgroundColor:[NSColor controlBackgroundColor]];

                }

            }

        }

On Wed, Dec 7, 2011 at 06:11, Bluna Ratimonkey <address@hidden> wrote:

Hi,
A text field didn't generate a text view but invoke NSWindow's
-fieldEditor:forObject: which will return a shared among many
controls.
I already have a working code, the one I posted. What I ask was if it
is necessary to do it that way, or if set...Color: and it should also
do that for me.
Thanks,
Bluna

On Wed, Dec 7, 2011 at 8:24 AM, Ivan Vučica <address@hidden> wrote:
> If I remember correctly, under OS X focusing a textfield generates a textview. I don't know what happens under OS X. Try fetching your first responder and drill your way back to the top of the responder hierarchy, inspecting the responder classes along the way.
>
> If you still have issues with this, fire off another mail and I'll send some code I wrote for OS X that changes color of the text field based on validation results for the currently entered text.
>
> Poslano s mog iPad uređaja
>
> 3. 12. 2011., u 22:18, Bluna Ratimonkey <address@hidden> napisao:
>
>> Hi,
>> NSTextField didn't change color on set...Color: while editing, is that a bug?
>>
>> I have to hack like this to set the color directly
>>
>> [[[myTF window] fieldEditor:NO forObject:myTF] setBackgroundColor:color];
>>
>> Is that a correct way to hack it?
>>
>> Cheers,
>> Bluna
>>
>> --
>> /* Join Bluna Ratimonkey (漫画家) and build the real future for GNUstep ! */
>>    [@"http://mus3.sourceforge.net" setNeedsYourHelps:YES!!];
>>
>> _______________________________________________
>> Gnustep-dev mailing list
>> address@hidden
>> https://lists.gnu.org/mailman/listinfo/gnustep-dev



--
/* Join Bluna Ratimonkey (漫画家) and build the real future for GNUstep ! */
   [@"http://mus3.sourceforge.net" setNeedsYourHelps:YES!!];

--
Ivan Vučica - address@hidden