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How to construct a "Variable" V List (or H List)

NRW

Folks,

I use the following expression to populate a PowerPoint slide. Usually it's three rows lined vertically. However, I was looking for a more elegant way to set up a conditional statement to make the items in the V List variable. That is sometimes I will want only one row vs. three. Or maybe more than three rows. I put a commented "If" statement just to visualize what I'm after (obviously this does not work).

Ultimately looking for a more flexible way to arrange not only V List, but H List as well.

Many Thanks

Neil

coltwin_1 = Expr( 								// Layout for surface orientation					
					V List Box(
						H List Box(
							sem1,
							col1 ,
							LT1 ,
							spacer box(size(50,0))	
						),
					//If (n > 1,
							sp1 = Spacer Box( size(0, 100)),
							H List Box(
								sem2,
								col2,
								LT2,
							),
							sp2 = Spacer Box( size(0, 100)),
							H List Box(
								sem3,
								col3,
								LT3
							)
					//);				
				));

Accepted answers

ian_jmp

Everyone develops their own style, and here's one:

NamesDefaultToHere(1);

tb = TextBox( "Hello world" );

n1 = 3;
vlb1 = VListBox();
for(i=1, i<=n1, i++, InsertInto(vlb1, tb));
NewWindow(Char(n1)|| " display boxes in a Vertical List Box", vlb1);

n2 = 5;
vlb2 = VListBox();
for(i=1, i<=n2, i++, InsertInto(vlb2, tb));
NewWindow(Char(n2)|| " display boxes in a Vertical List Box", vlb2);

You might also look at 'LineUpBox()'.

All comments

ian_jmp

Everyone develops their own style, and here's one:

NamesDefaultToHere(1);

tb = TextBox( "Hello world" );

n1 = 3;
vlb1 = VListBox();
for(i=1, i<=n1, i++, InsertInto(vlb1, tb));
NewWindow(Char(n1)|| " display boxes in a Vertical List Box", vlb1);

n2 = 5;
vlb2 = VListBox();
for(i=1, i<=n2, i++, InsertInto(vlb2, tb));
NewWindow(Char(n2)|| " display boxes in a Vertical List Box", vlb2);

You might also look at 'LineUpBox()'.

NRW

Many thanks for reply and input. I'm working on overhauling my clumsy approach and introducing what you have suggested. I included "commented" old approach to illustrate what was working in static mode. I've got image file sets with "a1", "a2", and "a3" suffixes. However, I'm still getting one row (H list) that is displayed and it is the "a3" set. Index did ratchet 1-3, but final image set was the last read. As if a1 and a2 sets were overwritten.

Thanks in advance for all your help.

For(i=1, i<=n, i++,
		
			sem = Open(SD1 || samplename2 || "_a" || Char(i) || ".jpg", jpg);
			sem << Scale(.15);
			col = Open(SD1 || samplename2 || "_a" || Char(i) || "_16col_filt.jpg", jpg);
			col << Scale(.16);
			LT = Open(SD1 || samplename2 || "_a" || Char(i) || "_LtIm.jpg", jpg);
			LT << Scale(.16);
			
			coltwin_1 = V List Box();
			H_list = H List Box(sem, col, LT, spacer box(size(50,0)));
			InsertInto(coltwin_1, H_list);
			
		);
		
		
		//sem1 = Open(SD1 || samplename2 || "_a1.jpg", jpg);
		//sem1 << Scale(.15);
		//col1 = Open(SD1 || samplename2 || "_a1_16col_filt.jpg", jpg);
		//col1 << Scale(.16);
		//LT1 = Open(SD1 || samplename2 || "_a1_LtIm.jpg", jpg);
		//LT1 << Scale(.16);
		//sem2 = Open(SD1 || samplename2 || "_a2.jpg", jpg);
		//sem2 << Scale(.15);
		//sem3 = Open(SD1 || samplename2 || "_a3.jpg", jpg);
		//sem3 << Scale(.15);
		//col2 = Open(SD1 || samplename2 || "_a2_16col_filt.jpg", jpg);
		//col2 << Scale(.16);
		//col3 = Open(SD1 || samplename2 || "_a3_16col_filt.jpg", jpg);
		//col3 << Scale(.16);
		//LT2 = Open(SD1 || samplename2 || "_a2_LtIm.jpg", jpg);
		//LT2 << Scale(.16);
		//LT3 = Open(SD1 || samplename2 || "_a3_LtIm.jpg", jpg);
		//LT3 << Scale(.16);	

/*coltwin_1 = Expr( 													
					V List Box(
						H List Box(
							sem1,
							col1 ,
							LT1 ,
							spacer box(size(50,0))	
						),
					
						sp1 = Spacer Box( size(0, 100)),
						H List Box(
							sem2,
							col2,
							LT2,
						),
						sp2 = Spacer Box( size(0, 100)),
						H List Box(
							sem3,
							col3,
							LT3
						)
							
				));*/

NRW

Immediately saw my mistake as soon as I sent the reply:)

This works perfectly, much more elegant!

Thank you again for all the help.

coltwin_1 = V List Box();
		For(i=1, i<=n, i++,
		
			s = Open(SD1 || samplename2 || "_a" || Char(i) || ".jpg", jpg);
			s << Scale(.15);
			col = Open(SD1 || samplename2 || "_a" || Char(i) || "_filt.jpg", jpg);
			col << Scale(.16);
			LT = Open(SD1 || samplename2 || "_a" || Char(i) || "_L.jpg", jpg);
			LT << Scale(.16);
			
			H_list = H List Box(s, col, LT, spacer box(size(50,0)));
			
			InsertInto(coltwin_1, H_list);
			InsertInto(coltwin_1, sp = Spacer Box( size(0, 100)));
		);