hrp@snoid.cray.COM (Hal Peterson) (12/16/88)
I am trying to make a Form widget with three daughter widgets like this: +------+------+ | Label | +------+------+ | | | | Form | Form | |______|______| but I keep winding up with this: +------++-----+ | Label | | +------++-----+ | | | | Form | Form | |______|______| I can't find any way, short of setting the initial size of the Label widget to some large value, to center the Label in the enclosing Form. I have tried setting XtNright <- XtChainRight XtNleft <- XtChainLeft in the Label widget, with no change in behavior, and I think that makes sense, but it still doesn't solve my problem. -- Hal Peterson / Cray Research / 1440 Northland Dr. / Mendota Hts, MN 55120 hrp@cray.com uunet!cray!hrp (612) 681-3145
hrp@snoid.cray.COM (Hal Peterson) (12/16/88)
Are there any plans to add an XtNorientation resource to the Dialog widget? It would be handy to be able to specify a Dialog like +-------+------+ | Label | Text | +-------+------+ or like +-------+ | Label | +-------+ | Text | +-------+ without resorting to a Form. -- Hal Peterson / Cray Research / 1440 Northland Dr. / Mendota Hts, MN 55120 hrp@cray.com uunet!cray!hrp (612) 681-3145
jack@hpcvlx.HP.COM (Jack Peterson) (12/17/88)
/ hpcvlx:comp.windows.x / hrp@snoid.cray.COM (Hal Peterson) / 11:34 am Dec 15, 1988 / I am trying to make a Form widget with three daughter widgets like this: +------+------+ | Label | +------+------+ | | | | Form | Form | |______|______| but I keep winding up with this: +------++-----+ | Label | | +------++-----+ | | | | Form | Form | |______|______| I can't find any way, short of setting the initial size of the Label widget to some large value, to center the Label in the enclosing Form. I have tried setting XtNright <- XtChainRight XtNleft <- XtChainLeft in the Label widget, with no change in behavior, and I think that makes sense, but it still doesn't solve my problem. -- Hal Peterson / Cray Research / 1440 Northland Dr. / Mendota Hts, MN 55120 hrp@cray.com uunet!cray!hrp (612) 681-3145 ---------- With the HP Widget set, in order to span the width of a form, the constraint resources XtNxAttachRight and XtNxResizable must both be set to TRUE. Jack Peterson HP Corvallis Workstation Operation Support and Training
kit@ATHENA.MIT.EDU (Chris D. Peterson) (12/17/88)
> From hrp@snoid.cray.com (Hal Peterson) > > [picture deleted, basically trying to get a label widget to be the > titlebar over two forms, so that it extends across both of the daughter > forms.] > > I can't find any way, short of setting the initial size of the Label > widget to some large value, to center the Label in the enclosing Form. > I have tried setting > XtNright <- XtChainRight > XtNleft <- XtChainLeft > in the Label widget, with no change in behavior, and I think that > makes sense, but it still doesn't solve my problem. The form widget is a slippery character and is difficult to describe and understand, we are looking into getting something better, but for a while for doing general widget layout the form is it. So to let people use it more effectively I will try to give a better explanation of its use. The form has two distinct methods of laying itself out. Method 1 never resizes the children of the form, and just attempts to place them in next to each other like building blocks, according to the resources shown below. The FromVert resource is used to place this widget directly below one of its siblings. The fromHoriz resource is used to place this widget directly to the right of one of its siblings. This method is used when managing and unmanaging children, and processing childrens geometry requests. Method 2 may resize children if the XtNresizable constraint resouce is set for that child. This method takes each edge of each child, and moves it appropriately, for instance in the above example you may want to chain both the top and bottom edges of the lable widget to the top of the form. This will of course keep it from changing size, and both edges are fixed to the top of the form. For really strange behavior you can chain the top of a widget to the bottom of the form, and the bottom of a widget to the top of the form. This method is only used when the form is told to resize itself by its parent. Resources for each method of laying out the form widgets children. Method 1 Method 2 -------------------------------------------------------------- XtNfromVert XtNbottom XtNfromHoriz XtNtop XtNhorizDistance XtNleft XtNvertDistance XtNright XtNresizeable Back to the specific question: The only what to get the label widget to go all the way across the form like you are asking is to size it appropriately. This can be done by querying the daughter form widgets of their sizes (a call to XtFormDoLayout may be necessary) and the label widget of its XtNhorizDistance resource, and adding them all together as the correct size of the label widget. Chris D. Peterson MIT X Consortium / Project Athena Net: kit@athena.mit.edu Phone: (617) 253 - 1326 USMail: MIT - Room E40-342C 77 Massachusetts Ave. Cambridge, MA 02139
sundar@WHEATIES.AI.MIT.EDU (Sundar Narasimhan) (12/19/88)
If you are using the athena form widget equalizing widths horizontally and
heights vertically may be a problem depending on how you create the widgets
initially.
My solution was to have a equalize_geometry(widget_list, XtNwidth)
procedure that just resizes the widgets to be of equal widths once
they have been created.
-Sundar
ps. here's that piece of code
xt_equalize_geometry(direction, list)
char *direction; /* XtNwidth/XtNheight */
xt_widget_list list;
{
xt_widget_list l;
Arg args[W_MAXARGS];
int i = 0;
Dimension width, height, borderwidth;
int maxvalue = 0;
int widflag = 0;
xt_set_args(args, &i, W_MAXARGS,
XtNwidth, &width,
XtNheight, &height,
XtNborderWidth, &borderwidth,
NULL);
if(strcmp(direction, XtNwidth) == 0)
widflag = 1;
for(l = list; l != NULL; l = l->next) {
XtGetValues(l->widget, args, i);
if(widflag) {
if (maxvalue < width) maxvalue = width;
} else
if(maxvalue < height) maxvalue = height;
}
for(l = list; l != NULL; l = l->next) {
XtGetValues(l->widget, args, i);
XtResizeWidget(l->widget, (widflag == 1) ? maxvalue : width,
(widflag == 1) ? height : maxvalue,
borderwidth);
}
return(maxvalue);
}Sherman.Uitzetter@MAPS.CS.CMU.EDU (07/14/89)
I am using X11R3 and have a Form Widget with (let's say) two buttons in it. How can I stick a third button between the first two? I tried the obvious - set XtNfromHoriz for the new button to the first (left) button and XtNfromHoriz for the second (right) button to the new button and then realized the Form. What happened was - the new button ends up under the first button (upper left of the Form) and the right button ends up to the right of the new button and, thus, obscured by the first button. Basically, the middle button doesn't end up in the middle but underneath the button at the left. Thanks in advance for any response. -Sherman.
converse@EXPO.LCS.MIT.EDU (Donna Converse) (07/14/89)
> I am using X11R3 and have a Form Widget with (let's say) two buttons in it. > How can I stick a third button between the first two? The following resources presuppose the order of widget creation to be leftButton, middleButton, rightButton. Demo.form.middleButton.fromHoriz: leftButton Demo.form.rightButton.fromHoriz: middleButton At the time that the right button is created, the Athena form widget converts middleButton to a widget ID. So, the middle button must be created before the right button. If the order of widget creation is leftButton, rightButton, middleButton, write the resources so that the placement of buttons depend only on existing buttons. Demo.form.middleButton.fromHoriz: leftButton Demo.form.rightButton.fromHoriz: leftButton Demo.form.rightButton.horizDistance: 60 Not very elegant, is it? Donna Converse converse@expo.lcs.mit.edu