Athena Widget Set - C Language Interface - X Consortium ... - X.Org

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Composite and ConstraintWidgetsIf the relayout is due to a resize or change in management then the panes aresearched from bottom to top. If the relayout is due to grip movement then they aresearched from the grip selected in the direction opposite the pane selected.Resizing Panes from a Grip ActionThe pane above the grip is resized by invoking the GripAction with UpLeftPanespecified. The panes below the grip are each checked against all rules, then rules2 and 1 and finally against rule 1 only. No pane above the chosen pane will everbe resized.The pane below the grip is resized by invoking the GripAction with LowRightPanespecified. The panes above the grip are each checked in this case. No pane belowthe chosen pane will ever be resized.Invoking GripAction with ThisBorderOnly specified just moves the border betweenthe panes. No other panes are ever resized.Resizing Panes after the Paned widget is resized.When the Pane widget is resized it must determine a new size for each pane. Thereare two methods of doing this. The Paned widget can either give each pane itspreferred size and then resize the panes to fit, or it can use the current sizes andthen resize the panes to fit. The resizeToPreferred resource allows the applicationto tell the Paned widget whether to query the child about its preferred size (subjectto the the preferredPaneSize) or to use the current size when refiguring the panelocations after the pane has been resized.There is one special case. All panes assume they should resize to their preferredsize until the Paned widget becomes visible to the user.Managing Children and Geometry ManagementThe Paned widget always resizes its children to their preferred sizes when a newchild is managed, or a geometry management request is honored. The Paned widgetwill first attempt to resize itself to contain its panes exactly. If this is not possiblethen it will hunt through the children, from bottom to top (right to left), for a paneto resize.Special ConsiderationsWhen a user resizes a pane with the grips, the Paned widget assumes that this newsize is the preferred size of the pane.Grip TranslationsThe Paned widget has no action routines of its own, as all actions are handledthrough the grips. The grips are each assigned a default Translation table.: GripAction(Start, UpLeftPane)117
Composite and ConstraintWidgets: GripAction(Start, ThisBorderOnly): GripAction(Start, LowRightPane): GripAction(Move, UpLeftPane): GripAction(Move, ThisBorderOnly): GripAction(Move, LowRightPane)Any: GripAction(Commit)The Paned widget interprets the GripAction as taking two arguments. The firstargument may be any of the following:StartMoveSets up the Paned widget for resizing and changes the cursorof the grip. The second argument determines which panewill be resized, and can take on any of the three valuesshown above.The internal borders are drawn over the current pane locationsto animate where the borders would actually be placedif you were to move this border as shown. The second argumentmust match the second argument that was passedto the Start action, that began this process. If these argumentsare not passed, the behavior is undefined.CommitConvenience RoutinesThis argument causes the Paned widget to commit thechanges selected by the previously started action. The cursoris changed back to the grip's inactive cursor. No secondargument is needed in this case.To enable or disable a child's request for pane resizing, use XawPanedAllowResize :void XawPanedAllowResize( w, allow_resize);wallow_resizeSpecifies the child pane.Specifies whether or not resizing requests for thischild will be granted by the Paned widget.If allow_resize is True, the Paned widget allows geometry requests from the child tochange the pane's height. If allow_resize is False, the Paned widget ignores geometryrequests from the child to change the pane's height. The default state is Truebefore the Pane is realized and False after it is realized. This procedure is equivalentto changing the allowResize constraint resource for the child.To change the minimum and maximum height settings for a pane, use XawPanedSet-MinMax :void XawPanedSetMinMax( w, max);wminmaxSpecifies the child pane.Specifies the new minimum height of the child, expressed inpixels.Specifies new maximum height of the child, expressed in pixels.118
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Athena Widget Set -C Language Inter
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Table of Contents1. Athena Widgets
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Athena Widget Set -C Language Inter
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Athena Widgetsand The Intrinsicswid
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Athena Widgetsand The Intrinsics•
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Athena Widgetsand The IntrinsicsDRD
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Using Widgetsapplication_classoptio
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Using WidgetsName Class Type Defaul
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Using Widgetsapp_contextSpecifies t
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Using Widgetsnum_argsSpecifies the
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Using Widgets6. When the argument l
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Using Widgetseither the name used t
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Using WidgetsArg arglist[10];arglis
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Simple WidgetsSuperclass LabelResou
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Simple Widgets• Processing applic
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Simple WidgetsName Class Type Notes
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Simple WidgetsResourceswill allow i
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Simple WidgetsResourcesWhen creatin
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Simple WidgetsforegroundA pixel val
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Simple WidgetsresizeSpecifies a Boo
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Simple WidgetssliderWidthPanner Act
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Simple WidgetsRepeater ActionsThe R
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Simple Widgetsbacks and passes eith
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Simple WidgetsSimple Widget\ * reso
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Simple WidgetsResourcesThe StripCha
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Simple Widgetsvoid(*getValueProc)(
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Simple Widgetsnotify()When the Togg
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Chapter 4. MenusThe Athena widget s
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MenusNotify(\|)Called when the user
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MenusleftBitmaprightBitmapThis is a
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Chapter 5. Text WidgetsThe Text wid
Page 71 and 72: Text Widgetswill be insensitive and
Page 73 and 74: Text WidgetsTwoThreeFourFiveSelect
Page 75 and 76: Text Widgetsscroll-one-line-up()scr
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Page 79 and 80: Text Widgetsreconnect-im()The popup
Page 81 and 82: Text WidgetsText FunctionsLeft: bac
Page 83 and 84: Text Widgetsint XawTextReplace( w,
Page 85 and 86: Text WidgetsCalling this function i
Page 87 and 88: Text WidgetsClass Header fileClassC
Page 89 and 90: Text WidgetsResourcesClass Name Tex
Page 91 and 92: Text WidgetsClearing Portions of th
Page 93 and 94: Text WidgetsFinding the Size of the
Page 95 and 96: Text WidgetsXawTextPosition Read( w
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Page 99 and 100: Text WidgetsResourcesSuperclass Tex
Page 101 and 102: Text WidgetsBoolean XawAsciiSaveAsF
Page 103 and 104: Text WidgetsName Class Type Notes D
Page 105 and 106: Chapter 6. Composite and Constraint
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Page 133 and 134: Creating New Widgets(Subclassing)It
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Page 141: AcknowledgmentsDonna ConverseMIT X
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Athena Widget Set - C Language Interface - X Consortium ... - X.Org

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