Re: [newbie] Window state saving
Re: [newbie] Window state saving
- Subject: Re: [newbie] Window state saving
- From: j o a r <email@hidden>
- Date: Sun, 15 Jan 2006 01:26:04 +0100
On 15 jan 2006, at 00.42, Jonathan Saggau wrote:
I'm working on a very small NSDocument app that needs to reload the
state of
all GUI widgets on the NSDocument's main window when loading a
document.
When you say state, what do you mean? The obvious thing would be that
you mean that the user interface controls must have the settings /
contents that matches the data in the document - I will go with the
assumption that this is what you're talking about.
Right now (and it does work) I'm enumerating the widgets (Sliders and
buttons and things) and putting the state info in a plist and
refreshing the
view from the plist on open. I wonder if there is a more elegant
way to do
this.
In the traditional Cocoa design, it would be up to the window
controller to do this tedious work when the document is loaded, and
to ensure that it's kept up to date as the user makes modifications.
Nowadays it's perhaps best done using Cocoa bindings. Bindings makes
this all automatic. There's a lot of documentation and sample code on
that topic - go check it out!
Perhaps Serializing the whole mess to disk with a coder? I know the
NIB files do this kind of thing "freeze-drying" the GUI as it were
for a
given app. I just wonder if I'm missing a method that says "save
state of
entire window to disk." :)
Note that the controls in the UI should only ever reflect the true
state of your document data, that should reside in the document. So,
saving the document would in effect also enable you to restore the
state of the user interface.
j o a r
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