Dear All,
I am learning the document/view design. The document stores data and
provides GUI-independent operations upon it; while the views display
and manipulate the data.
Assume I have several objects to display in the view. And I can hide
some objects in the view.
My question is that: May I need to store the hide status of an object
in the document? If I store them, when on updating the view by the
document, I can still hide those that are asked to hide before. But
accoding my understanding, the hide status is GUI-dependent, and it
will spoil the original intention of separation of document and view.
Anybody can give me some suggestion?
Thanks a lot!
Shuisheng
2  1414 
shuisheng wrote:
Dear All,
I am learning the document/view design. The document stores data and
provides GUI-independent operations upon it; while the views display
and manipulate the data.
Assume I have several objects to display in the view. And I can hide
some objects in the view.
My question is that: May I need to store the hide status of an object
in the document? If I store them, when on updating the view by the
document, I can still hide those that are asked to hide before. But
accoding my understanding, the hide status is GUI-dependent, and it
will spoil the original intention of separation of document and view.
Anybody can give me some suggestion?
It's very difficult to understand you but if I get your meaning you may
be served by using several views governed by a mediator.
On Feb 16, 2:32 pm, "shuisheng" <shuishen...@ya hoo.comwrote:
Dear All,
I am learning the document/view design. The document stores data and
provides GUI-independent operations upon it; while the views display
and manipulate the data.
Assume I have several objects to display in the view. And I can hide
some objects in the view.
My question is that: May I need to store the hide status of an object
in the document?
I don't see any need to do this. All the GUI toolkits I've worked with
support some sort of hide() operation for widgets.
If I store them, when on updating the view by the
document, I can still hide those that are asked to hide before. But
accoding my understanding, the hide status is GUI-dependent, and it
will spoil the original intention of separation of document and view.
It sure would violate the document/view separation to store view
information within the document.
>
Anybody can give me some suggestion?
Thanks a lot!
Shuisheng
HTH,
Paul Davis This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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