Hi All,
> On 7 Sep 2015, at 22:12, Ken Thomases <k...@codeweavers.com
> <mailto:k...@codeweavers.com>> wrote:
>
> On Sep 7, 2015, at 3:14 PM, Dave <d...@looktowindward.com
> <mailto:d...@looktowindward.com>> wrote:
>
>> Thanks a lot for this.
>
> You're welcome.
There is so little info I can find on how to do this any help is really
appreciated.
>>> You should set leading and trailing constraints between the stack view and
>>> the clip view so that the stack view is as wide as the clip view.
>
>> Horizontal Space StackView.Trailing Equal FlippedClipView.Trailing -1,
>> 1000, 1 *****Constant = -1
>> Vertical Space StackView.Top Equal FlippedClipView.top
>> 0, 1000, 1
>> Horizontal Space StackView.Leading Equal FlippedClipView.Leading 0, 1000,
>> 1
>>
>> Is this correct or do I need to change or add something?
>
> I would say the trailing constraint would be better with constant 0. I'm not
> sure why it's -1. Either way, though, the difference will be slight and can
> be changed later if you find a cause to without disrupting anything else.
It got set to -1 by XCode/IB when I did “Reset to Suggested Constraints” so I
assumed it would be right although I’ve no clue why it should choose -1 as the
value? Also, if I change it to zero I get IB warnings.
So given the above constraints, is this right if I want the Detail View to
Stretch/Shrink in line with Scroll View/StackView? I realise I have to tweak
the priorities in the DetailView but I’m trying to establish if the above is
right were I to somehow Devine the right set of priorities for DetailView?
If so, then I need to tweak things in the LTWDetailView in order to make it
Stretch/Shrink in the X direction?
After thinking about what I am trying to do here, I’m wondering if it’s
possible using a NSScrollView/NSStackView combo - call it the
“ScrollingStackView” to save my fingers.
Here’s the way I way thinking about things, I’d be grateful if someone could
tell me if it’s possible using Auto Layout or suggested a better way of going
about things.
1. There are one or more Windows that have one or more of these
ScrollingStackView's in their NIB files. Initially the Window is sized sensibly
and the ScrollingStackView’s positioned sensibly with the Window.
2. There are one or more DetailView’s, these DetailView's are stored in
separate NIB files (e.g. LTWDetailXView, LTWDetailYView) and loaded when needed
by code. The Detail Views are constructed in XCode/IB and are at their smallest
most compact size (e.g. I don’t want them to get any smaller).
3. I add these DetailView’s to the ScrollingStackView, when a view is added
I’m like the following to happen:
If the width of the ScrollingStackView is smaller than the width of the
DetailView, then I want the ScrollingStackView to expand to fit the DetailView.
If the width of the ScrollingStackView is greater than the width of DetailView
then I want the DetailView to expand to fit the ScrollingStackView. After that
I want it to change with the
Is this possible to do using auto layout in XCode 6.4?
I’ve been experimenting changing priorities in the DetailView to try and figure
out how to do the above, but it’s really frustrating because quite often,
changing one of the priorities cause the while view to disintegrate and give
many IB errors and warnings and it’s difficult to put everything back together
again. Also there doesn’t seem to be an “undo” for the Priority Values which
makes it even harder to get it right and much easier to screw something up.
I’ve had to revert the NIB file a good few times now when things have got to
state where it’s completely Beswicked and the only way out is the dreaded
“Clear All Constraints” command and even that sometimes still leaves things
totally screwed up.
This is the View Hierarchy of the DetailView:
LTWDetailXView (Class
LTWDetailXView)
DetailMainView (Class
LTWDrawFrameView)
DetailControlsView (Class
NSView)
DetailDescriptionTextField (Class
NSTextField)
DetailButtonStackView (Class
NSStackView)
DetailButton1 (Class
NSButton)
DetailButton2 (Class
NSButton)
DetailButton3 (Class
NSButton)
I’m not sure if you can see the Screen Dump sent in a separate message?
If not then the layout is really simple. one DetailDescriptionTextField on the
Left and one Vertical Stack View containing 3 buttons to the right of this. I
want the DetailButtonStackView to move to the right and the
DetailDescriptionTextField to Expand towards the DetailButtonStackView.
I did a “Clear Constraints” and then a “Reset to Suggested Constraints”, this
placed a width constraint on DetailDescriptionTextField, in order to make it
Stretch in X, I added a Height Constraint and removed the Width constraint that
XCode/IB generated. This had no effect, so I then changed Content Hugging to
H=240 and the Content Compression Resistance t H=760 and low and behold the
text field stretches out in X to fill the Frame of the Details View and doesn’t
get any smaller - so far so good!
I now want to have the same happen with LTWDetailXView in relation to the
ScrollingStackView, so I tried doing the same thing to the CHP and the CCRP on
LTWDetailXView and DetailMainView but this did nothing? Why is this? Surely it
should have the same effect or is the ScrollingStackView doing something to
prevent this?
Any idea what need to do in order to make this happen?
Thanks again to everyone for the help.
All the Best
Dave
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