slkww@cc.usu.edu (02/28/91)
I'm trying to learn Turbo Vision. As an exercise, I'm using TListViewer to view a directory list inside a window, and I have two problems: - the color for the filenames is flashing white on red, as is the color for the selected item. I've done nothing to change the default palette; even if I wanted to, to book leaves me clueless. Do I have to activate the palette somehow? - even though the book states that TListViewer's Draw method "copes with resizing," my directory list view does not change size with the window. What does the book's statement mean? Any comments would be greatly appreciated. Turbo Vision seems to me to be either overly complicated or underly documented. I sure would like to see a comp.lang.pascal.tvision group soon. Ken Austin slkww@cc.usu.edu
fehr@ms.uky.edu (Jeffrey Davis) (03/04/91)
In article <1991Feb27.230255.46955@cc.usu.edu> slkww@cc.usu.edu writes: > >Turbo Vision seems to me to be either overly complicated or underly >documented. I sure would like to see a comp.lang.pascal.tvision group >soon. I agree. Since I am about to embark on a significant port of a couple of large programs, and I'd like to use TurboVision, I'm sure I could add my share of questions. -- davis@ca.uky.edu
rind@popvax.uucp (747707@d.rind) (03/04/91)
[Question about TListViewer deleted.] As far as I can tell, despite some statements in the TV manual that seem to imply otherwise, TListViewers are only meant to be placed in TDialog boxes and not in TWindows. If you put it in a Dialog then the colors come out right and everything seems to work. If people have found another solution, I'd be interested. David Rind rind@popvax.harvard.edu
bobb@vice.ICO.TEK.COM (Bob Beauchaine) (03/05/91)
>In article <1991Feb27.230255.46955@cc.usu.edu> slkww@cc.usu.edu writes: >> >>Turbo Vision seems to me to be either overly complicated or underly >>documented. I sure would like to see a comp.lang.pascal.tvision group >>soon. As a card carrying Windows hater, I too will probably develop applications in Turbo Vision well into the immediate future. Sounds like it's time to have a vote on creation of a new newsgroup. /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\ Bob Beauchaine bobb@vice.ICO.TEK.COM C: The language that combines the power of assembly language with the flexibility of assembly language.
seth@wet.UUCP (Seth Olitzky) (03/08/91)
In article <1991Feb27.230255.46955@cc.usu.edu> slkww@cc.usu.edu writes: >I'm trying to learn Turbo Vision. As an exercise, I'm using TListViewer >to view a directory list inside a window, and I have two problems: > >- the color for the filenames is flashing white on red, as is the > color for the selected item. I've done nothing to change the > default palette; even if I wanted to, to book leaves me clueless. > Do I have to activate the palette somehow? >- even though the book states that TListViewer's Draw method "copes > with resizing," my directory list view does not change size with > the window. What does the book's statement mean? Turbo Vision has a somewhat sharp learning curve, but once over the hurdle its great. 1. You have used TListViewer on a TWindow, not on a TDialog. This causes the palette to be wrong. Certain items in Turbo Vision, buttons, list boxes, are designed to be inserted onto dialog boxes and not windows. The palette for a default TWindow is not large enough to handle these objects. Compare the palettes for TDialog and TWindow. See the difference. Flashing white on Red always means that you have a bad GetColor call and that the palette indexes could not be followed up to the application. 2. Don't use TListViewer. Its not made to be on a resized window. Use TSCROLLER. This works like a champ and all that you have to write is the Draw procedure. But you can find an example for all of this in the Turbo Vision book on around page 40 and upwards. Read it. Im also looking for other Turbo Vision crazies, besides myself. What the use of learning it all if I can't discuss it with someone. -- ----------------------------------------------------------------------------- Seth Olitzky seth@wet ...!sun!hoptoad!wet!seth ----------------------------------------------------------------------------
kankkune@cs.Helsinki.FI (Risto Kankkunen) (03/14/91)
>2. Don't use TListViewer. Its not made to be on a resized window.
Have you set the GrowMode correctly (gfGrowHiX+gfGrowHiY, for example)?
I have had no problems with TListBox. I don't remember where in the
hierarchy TListViewer is, but I think it should work, too.
Risto Kankkunen kankkune@cs.Helsinki.FI (Internet)
Department of Computer Science kankkunen@finuh (Bitnet)
University of Helsinki, Finland ..!mcsun!uhecs!kankkune (UUCP)kankkune@cs.Helsinki.FI (Risto Kankkunen) (03/14/91)
>As far as I can tell, despite some statements in the TV manual that seem >to imply otherwise, TListViewers are only meant to be placed in TDialog >boxes and not in TWindows. This is what I dislike most of in TV. Though, I understand the design principles, but I think I had made the palette system differently. > If people have found another solution, I'd be interested. There is, however, a work-around. You have to override the view's GetPalette method. The standard palette references entries that are not in TWindow's palette, as it is smaller than that of TDialog. You can do something like this: FUNCTION GetPalette:PString; CONST Colours =#7#8#7#8#1 etc. choose suitable indexes from TWindow's palette MyPalette :String[Length(Colours)]=Colours; BEGIN Getpalette:=@MyPalette; END; Risto Kankkunen kankkune@cs.Helsinki.FI (Internet) Department of Computer Science kankkunen@finuh (Bitnet) University of Helsinki, Finland ..!mcsun!uhecs!kankkune (UUCP)