Mailing List Archive: Re: How to make a layout from a block

[REBOL] Re: How to make a layout from a block

From: moeller_thorsten:gmx at: 19-Apr-2002 10:59


Hi Brett,

thanks for your suggestions. As this code is just the beginning test, how a
small app to create a seat-plan could work, i have a some additional
questions.

I improved my own code, but think it is not very elegant. I added two fields
to to get the number of rows and columns to generate.

Rebol []

;--- defining seat style
saal-styles: stylize [seat: box 6x6 green [seat/color: red]]

;--- Adding seats to layout
add-seats: func [ 	lines [integer!]
					quantity [integer!]
				] [

		;--- Adding lines
		repeat y lines [

			;--- Adding seats
			repeat x quantity [
			append main [seat]
				]

		append main [below across]
		]

	;--- generate new window
	unview/all
	view/options center-face layout main [no-title]
]

;--- Main Layout
main: [ 	    at 2x2 box 220x16 0.0.128 left bold "Seat-Plan-Generator" font
[name: "Arial" size: 11]
				below
				styles saal-styles
				backcolor silver
				text bold "How many lines should be created?"
				lines: field
				text bold "How many seats should be created?"
				qty: field
				across
				at 2x150 button "Quit" effect [gradient 0.0.0] [unview/all]
				button "Create" effect [gradient 0.0.0] [add-seats (to-integer
lines/text) (to-integer qty/text)]
				return
			]

;--- Start program
view/options center-face layout main [no-title]

Your code only generates one seat, even if i click the button several times.
The next problem is that i need the seats to store an information so the
seats have to look like "seat1: seat". If i add the seats like this i get an
error that "seat1" is not defined in this context when the new window is
generated. The second one is that the seat should perform an action on click, like
changing color or so (see style definition in code). For this reason every
seat must be adressable like "seat1" or "seat23" as well, but how can i
implement that when the style is defined. There i just can define a general action,
not knowing the exact seat number?

Perhaps you find a minute to think about it. I will try to solve it on my
own as well.

Best wishes to the other side of this world.

Thorsten