| Re: iTools Layout - Some help for once :-) [message #47823] |
Mon, 06 March 2006 00:14  |
Antonio Santiago
Messages: 201
Registered: February 2004
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Senior Member |
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Thanks for the tip James.
I just take a look at DoSetProperty, and I saw it uses the SET_PROPERTY
service that is nothing mora than an operation (IDLitopSetProperty) and
, also it uses de CommandBuffer to bring redo/undo options.
I have a problem with this (the undo/redo) method because in my program
I don't want to offer this possibility, and also I dont want to use
extra space storing the previous value of a property or an image. If you
know some tips to avoid the command buffer I will appreciate to you a lot.
Bye.
> Hello everybody,
>
> I'm not sure whether any of you have been subjected to any of my
> previous posts/cries for help, but when my questions started getting
> out of the boundaries of this forum, I had to do break off for a while
> and now I'm back with some knowledge. :-)
>
> I had been creating an iTool that, aside from having some panel UI's
> with thumbnail images, needed to switch back and forth between
> different layouts. In some cases, I wanted to have a single view with
> one image, but then in other cases I would want to switch to a 2x2 grid
> layout and have four different images. I'm sure a lot of you have been
> through the iTools tutorials and know how to do this using the menus,
> but when it came time to actually programming a way to do this, I had
> gotten very stuck. Luckily, I found a great thing called
> ITPROPERTYREPORT that helps a lot when working with iTools.
>
> If you perform a search using IDLitTool::FindIdentifiers for the string
> '*layout*', you'll be able to find the full identifier /TOOLS/IMAGE
> TOOL/OPERATIONS/WINDOW/LAYOUT (which we'll call layoutID). When you
> have an object reference to the tool (let's call it oTool), you can run
> the line:
>> ITPROPERTYREPORT, oTool, layoutID, /value
> and this will show you all the identifiers associated with the layout,
> along with their names, types, and values. You'll see something along
> these lines (this is a shortened list of what actually appears):
>
>
>> Properties of /TOOLS/IMAGE TOOL/OPERATIONS/WINDOW/LAYOUT
>>
>> Identifier Name Type Value
>> ---------- ---- ---- -----
>> NAME Name STRING Layout...
>> DESCRIPTION Description STRING Layout...
>> SHOW_EXECUTION_UI Show dialog BOOLEAN True
>> VIEW_COLUMNS Grid columns INTEGER 1
>> VIEW_ROWS Grid rows INTEGER 1
>
>
> Now, in my case, I wanted to switch to a 2x2 grid layout. First, you
> need to get an object reference to the layout by using the line:
>> layoutOBJ = oTool->GetByIdentifier ( layoutID )
>> From here, you can use the IDLitTool::DoSetProperty() function to
> modify the values you want to change (you'll sometimes see USERDEF
> types, which I unfortunately haven't found a way to change yet). When I
> want to change to a 2x2 grid layout, I run these lines:
>
>
>> result = oTool->DoSetProperty(layout_ID, 'SHOW_EXECUTION_UI', 0)
>> result = oTool->DoSetProperty(layout_ID, 'VIEW_COLUMNS', 2)
>> result = oTool->DoSetProperty(layout_ID, 'VIEW_ROWS', 2)
>> result = oTool->DoAction(layout_ID)
>
>
> You need to start off by setting the SHOW_EXECUTION_UI to 0 because
> when you're dealing with the layout, modifying any values will bring up
> the Layout menu. Also, you need to finish off with the
> IDLitTool::DoAction() method in order to complete the operation.
>
> I'm sure that this method of using DoSetProperty can be used to modify
> a lot of things in iTools, but i haven't yet tested them out.
>
> I hope that some of you are pleased that I'm able to post some help,
> finally. I know I sure am :-)
>
> Sincerely,
>
> - James
>
--
-----------------------------------------------------
Antonio Santiago P�rez
( email: santiago<<at>>grahi.upc.edu )
( www: http://www.grahi.upc.edu/santiago )
( www: http://asantiago.blogsite.org )
-----------------------------------------------------
GRAHI - Grup de Recerca Aplicada en Hidrometeorologia
Universitat Polit�cnica de Catalunya
-----------------------------------------------------
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| Re: iTools Layout - Some help for once :-) [message #48159 is a reply to message #47823] |
Thu, 30 March 2006 17:47  |
Michael Galloy
Messages: 1114
Registered: April 2006
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Senior Member |
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Antonio Santiago wrote:
> Thanks for the tip James.
>
> I just take a look at DoSetProperty, and I saw it uses the SET_PROPERTY
> service that is nothing mora than an operation (IDLitopSetProperty) and
> , also it uses de CommandBuffer to bring redo/undo options.
>
> I have a problem with this (the undo/redo) method because in my program
> I don't want to offer this possibility, and also I dont want to use
> extra space storing the previous value of a property or an image. If you
> know some tips to avoid the command buffer I will appreciate to you a lot.
You can bypass doSetProperty by using setProperty directly on the object
whose properties you want to modify. Remember that doSetProperty is a
method of the tool object which takes an argument that is the identifier
of the component whose properties you are changing. This would be like:
status = oTool->doSetProperty(id, 'COLOR', [255, 0, 0])
If you want to use setProperty directly, then use getByIdentifier method
of the tool like:
oComponent = otool->getByIdentifier(id)
oComponent->setProperty, COLOR=[255, 0, 0]
to get the object reference of the component. This bypasses the
undo/redo system.
-Mike
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