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view/list: altering layout possible?

 [1/2] from: robert::muench::robertmuench::de at: 8-Apr-2002 13:29


Hi, I have the following problem and don't know what's the best way to solve it: - I use a list that has three columns all of type text. - There are some actions attached to the text faces. Now I want to insert some rows into my list that use a different row layout. An image and a text. The problem is that the list style takes one 'layout block and this one can either be for the text rows or the image row. What know? I see the following possibilities (disadvantages marked with -, advantages marked with +) 1. I use one list style with a container like a box and use the box/pane to insert a single face I build a priori. + simple pattern for list style - need to simulate the 'supply thing of a list where all columns get triggered - need to create one layouted face that can be inserted into the pane - need to handle positioning and sizing myself 2. I use one list for the text rows and create single faces for the image rows. The image rows are than positioned as a layer over the list (at the position where a image row is placed, the text list will have an empty line) faking the one-list imagination. + simpler to programm - syncing list scrolling might be tedious 3. Use the following list layout: image text text text and decided within the 'supply function if an image is needed or not. If not I can hide the face (?) or set the size to 0x0. + consistent with list style - context depending code within gui code - tricky to understand What do you think about the three possibilities? Did I miss some other possibility? Robert

 [2/2] from: brett:codeconscious at: 9-Apr-2002 20:24


Hi Robert,
> Hi, I have the following problem and don't know what's the best way to
solve it:
> - I use a list that has three columns all of type text. > - There are some actions attached to the text faces. > > Now I want to insert some rows into my list that use a different row
layout. An
> image and a text. The problem is that the list style takes one 'layout
block and
> this one can either be for the text rows or the image row. What know? > > I see the following possibilities (disadvantages marked with -, advantages > marked with +)
Another option - no claim to be the best solution... Option 4. A "calculated pane" - like LIST utilises. Maybe you can even use the code of the LIST style as a basis for your solution. +/- Similar to LIST. + LIST provides you most of the code (esp. if your images are fixed height) - You have to think at a lower level than VID (but you are doing that anyway). Have a look at "Calculated panes" section of "View Notes" found in "Docs" of rebsite "Code. C." (In REBOL/View Click GOTO and enter http://www.codeconscious.com/index.r for the "Code. C." rebsite.) Regards, Brett.