| iTools Layout - Some help for once :-) [message #47832] |
Fri, 03 March 2006 10:17  |
James Everton
Messages: 19
Registered: November 2005
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Junior Member |
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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
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| Re: iTools Layout - Some help for once :-) [message #48156 is a reply to message #47832] |
Thu, 30 March 2006 22:17  |
Antonio Santiago
Messages: 201
Registered: February 2004
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Senior Member |
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Michael Galloy wrote:
> 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
Thanks Mike,
but since I was write the post I learn more on iTools. Now I am some
kind of Master Of the iTools :) (sorry, it's a bad joke).
PD: I am a fan of IDLdoc.
--
-----------------------------------------------------
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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