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diff --git a/libXaw/spec/CH6.intro b/libXaw/spec/CH6.intro deleted file mode 100644 index 530f2f7f9..000000000 --- a/libXaw/spec/CH6.intro +++ /dev/null @@ -1,84 +0,0 @@ -.LP -.bp -.if e .bp \" make sure we break on an odd page. -\& -.sp 1 -.ce 3 -\s+1\fBChapter 6\fP\s-1 - -\s+1\fBComposite and Constraint Widgets\fP\s-1 -.sp 2 -.nr H1 6 -.nr H2 0 -.nr H3 0 -.nr H4 0 -.nr H5 0 -.na -.LP -.XS -Chapter 6 - Composite and Constraint Widgets -.XE -.LP -These widgets may contain arbitrary widget children. They implement a -policy for the size and location of their children. -.IP \fBBox\fP 1i -.IN "Box widget" "" -This widget will pack its children as tightly as possible in -non-overlapping rows. -.IP \fBDialog\fP 1i -.IN "Dialog widget" "" -An implementation of a commonly used interaction semantic to prompt for -auxiliary input from the user, such as a filename. -.IP \fBForm\fP 1i -.IN "Form widget" "" -A more sophisticated layout widget that allows the children to specify -their positions relative to the other children, or to the edges of the Form. -.IP \fBPaned\fP 1i -.IN "Paned widget" "" -Allows children to be tiled vertically or horizontally. Controls are -also provided to allow the user to dynamically resize the individual panes. -.IP \fBPorthole\fP 1i -.IN "Porthole widget" "" -Allows viewing of a managed child which is as large as, or larger than its -parent, typically under control of a Panner widget. -.IP \fBTree\fP 1i -.IN "Tree widget" "" -Provides geometry management of widgets arranged in a directed, acyclic graph. -.IP \fBViewport\fP 1i -.IN "Viewport widget" "" -Consists of a frame, one or two scrollbars, and an inner window. The -inner window can contain all the data that is to be displayed. This inner -window will be clipped by the frame with the scrollbars controlling -which section of the inner window is currently visible. -.LP -.NH 3 -A Brief Note on Geometry Management -.IN "geometry management" "" -.LP -The geometry management semantics provided by the X Toolkit give full -control of the size and position of a widget to the parent of that -widget. While the children are allowed to request a certain size or -location, it is the parent who makes the final decision. Many of the -composite widgets here will deny any geometry request from their -children by default. If a child widget is not getting the expected size -or location, it is most likely the parent disallowing a request, or -implementing semantics slightly different than those expected by the -application programmer. -.LP -If the application wishes to change the size or location of -any widget it should make a call to \fBXtSetValues\fP. This will -.IN "XtSetValues" "" -allow the widget to ask its parent for the new size or location. -As noted above the parent is allowed to refuse this request, -and the child must live with the result. If the -application is unable to achieve the desired semantics, then perhaps it -should use a different composite widget. Under no circumstances -should an application programmer resort to \fBXtMoveWidget\fP or -.IN "XtMoveWidget" "" -\fBXtResizeWidget\fP; these functions are exclusively for the use of -.IN "XtResizeWidget" "" -Composite widget implementors. -.LP -For more information on geometry management consult the \fI\*(xT\fP. - - |