NAME

XmPanedWindow—The PanedWindow widget class

SYNOPSIS

#include <Xm/PanedW.h>

DESCRIPTION

PanedWindow is a composite widget that lays out children in a vertically tiled format.  Children appear in top-to-bottom fashion, with the first child inserted appearing at the top of the PanedWindow and the last child inserted appearing at the bottom.  The PanedWindow grows to match the width of its widest child and all other children are forced to this width. The height of the PanedWindow is equal to the sum of the heights of all its children, the spacing between them, and the size of the top and bottom margins. 

The user can also adjust the size of the panes.  To facilitate this adjustment, a pane control sash is created for most children.  The sash appears as a square box positioned on the bottom of the pane that it controls.  The user can adjust the size of a pane by using the mouse or keyboard. 

The PanedWindow is also a constraint widget, which means that it creates and manages a set of constraints for each child.  You can specify a minimum and maximum size for each pane.  The PanedWindow does not allow a pane to be resized below its minimum size or beyond its maximum size.  Also, when the minimum size of a pane is equal to its maximum size, no control sash is presented for that pane or for the lowest pane. 

The default XmNinsertPosition procedure for PanedWindow causes sashes to be inserted at the end of the list of children and causes non-sash widgets to be inserted after other non-sash children but before any sashes. 

All panes and sashes in a PanedWindow must be tab groups.  When a pane is inserted as a child of the PanedWindow, if the pane’s XmNnavigationType is not XmEXCLUSIVE_TAB_GROUP, PanedWindow sets it to XmSTICKY_TAB_GROUP. 

Classes

PanedWindow inherits behavior and resources from the Core, Composite, Constraint, and XmManager classes. 

The class pointer is xmPanedWindowWidgetClass. 

The class name is XmPanedWindow. 

New Resources

The following table defines a set of widget resources used by the programmer to specify data.  The programmer can also set the resource values for the inherited classes to set attributes for this widget.  To reference a resource by name or by class in a .Xdefaults file, remove the XmN or XmC prefix and use the remaining letters.  To specify one of the defined values for a resource in a .Xdefaults file, remove the Xm prefix and use the remaining letters (in either lowercase or uppercase, but include any underscores between words).  The codes in the access column indicate if the given resource can be set at creation time (C), set by using XtSetValues (S), retrieved by using XtGetValues (G), or is not applicable (N/A). 

XmPanedWindow Resource Set
NameClassTypeDefaultAccess

XmNmarginHeightXmCMarginHeightDimension3CSG
XmNmarginWidthXmCMarginWidthDimension3CSG
XmNrefigureModeXmCBooleanBooleanTrueCSG
XmNsashHeight XmCSashHeightDimension10CSG
XmNsashIndentXmCSashIndentPosition-10CSG
XmNsashShadowThicknessXmCShadowThicknessDimensiondynamicCSG
XmNsashWidth XmCSashWidthDimension10CSG
XmNseparatorOnXmCSeparatorOnBooleanTrueCSG
XmNspacingXmCSpacingDimension8CSG

XmNmarginHeightSpecifies the distance between the top and bottom edges of the PanedWindow
and its children.

XmNmarginWidthSpecifies the distance between the left and right edges of the PanedWindow
and its children.

XmNrefigureModeDetermines whether the panes’ positions are recomputed and repositioned
when programmatic changes are being made to the PanedWindow.
Setting this resource to True resets the children to their appropriate
positions.

XmNsashHeightSpecifies the height of the sash.

XmNsashIndentSpecifies the horizontal placement of the sash along each pane.  A positive
value causes the sash to be offset from the near (left) side of the PanedWindow,
and a negative value causes the sash to be offset from the far (right)
side of the PanedWindow.  If the offset is greater than the width of the
PanedWindow minus the width of the sash, the sash is placed flush
against the near side of the PanedWindow.
Whether the placement actually corresponds to the left or right side of
the PanedWindow may depend on the value of the XmNstringDirection
resource.

XmNsashShadowThicknessSpecifies the thickness of the shadows of the sashes.

XmNsashWidthSpecifies the width of the sash.

XmNseparatorOnDetermines whether a separator is created between each of the panes.
Setting this resource to True creates a Separator at the
midpoint between each of the panes.

XmNspacingSpecifies the distance between each child pane.

XmPanedWindow Constraint Resource Set
NameClassTypeDefaultAccess

XmNallowResizeXmCBooleanBooleanFalseCSG
XmNpaneMaximumXmCPaneMaximumDimension1000CSG
XmNpaneMinimumXmCPaneMinimumDimension1CSG
XmNpositionIndexXmCPositionIndexshortXmLAST_POSITIONCSG
XmNskipAdjustXmCBooleanBooleanFalseCSG

XmNallowResizeAllows an application to specify whether the PanedWindow
should allow a pane to request to be resized.  This flag has an
effect only after the PanedWindow and its children have been realized.
If this flag is set to True, the PanedWindow tries to honor requests
to alter the height of the pane. If False, it always denies pane
requests to resize.

XmNpaneMaximumAllows an application to specify the maximum size to which a pane
may be resized.  This value must be greater than the specified minimum.

XmNpaneMinimumAllows an application to specify the minimum size to which a pane
may be resized.  This value must be greater than 0.

XmNpositionIndexSpecifies the position of the widget in its parent’s list of
children (the list of pane children, not including sashes).  The value
is an integer that is no less than zero and no greater than
the number of children in the list at the time the value is
specified.  A value of zero means that the child is placed at the
beginning of the list.  The value can also be  specified as
XmLAST_POSITION (the default), which means that the child
is placed at the end of the list.  Any other value is ignored.
XtGetValues returns the position of the widget in its parent’s
child list at the time of the call to XtGetValues.
When a widget is inserted into its parent’s child list, the positions
of any existing children that are greater than or equal to the
specified widget’s XmNpositionIndex are increased by one.
The effect of a call to XtSetValues for XmNpositionIndex
is to remove the specified widget from its parent’s child list, decrease
by one the positions of any existing children that are greater than
the specified widget’s former position in the list, and then insert
the specified widget into its parent’s child list as described in the
preceding sentence.

XmNskipAdjustWhen set to True, this Boolean resource allows an application to specify
that the PanedWindow should not automatically resize this pane.

Inherited Resources

PanedWindow inherits behavior and resources from the following superclasses.  For a complete description of each resource, refer to the man page for that superclass. 

XmManager Resource Set
NameClassTypeDefaultAccess

XmNbottomShadowColorXmCBottomShadowColorPixeldynamicCSG
XmNbottomShadowPixmapXmCBottomShadowPixmapPixmapXmUNSPECIFIED_PIXMAPCSG
XmNforegroundXmCForegroundPixeldynamicCSG
XmNhelpCallbackXmCCallbackXtCallbackListNULLC
XmNhighlightColorXmCHighlightColorPixeldynamicCSG
XmNhighlightPixmapXmCHighlightPixmapPixmapdynamicCSG
XmNinitialFocusXmCInitialFocusWidgetNULLCSG
XmNnavigationTypeXmCNavigationTypeXmNavigationTypeXmTAB_GROUPCSG
XmNshadowThicknessXmCShadowThicknessDimension2CSG
XmNstringDirectionXmCStringDirectionXmStringDirectiondynamicCG
XmNtopShadowColorXmCTopShadowColorPixeldynamicCSG
XmNtopShadowPixmapXmCTopShadowPixmapPixmapdynamicCSG
XmNtraversalOnXmCTraversalOnBooleanTrueCSG
XmNunitTypeXmCUnitTypeunsigned chardynamicCSG
XmNuserDataXmCUserDataXtPointerNULLCSG

Core Resource Set
NameClassTypeDefaultAccess

XmNacceleratorsXmCAcceleratorsXtAcceleratorsdynamicCSG
XmNancestorSensitiveXmCSensitiveBooleandynamicG
XmNbackgroundXmCBackgroundPixeldynamicCSG
XmNbackgroundPixmapXmCPixmapPixmapXmUNSPECIFIED_PIXMAPCSG
XmNborderColorXmCBorderColorPixelXtDefaultForegroundCSG
XmNborderPixmapXmCPixmapPixmapXmUNSPECIFIED_PIXMAPCSG
XmNborderWidthXmCBorderWidthDimension0CSG
XmNcolormapXmCColormapColormapdynamicCG
XmNdepthXmCDepthintdynamicCG
XmNdestroyCallbackXmCCallbackXtCallbackListNULLC
XmNheightXmCHeightDimensiondynamicCSG
XmNinitialResourcesPersistentXmCInitialResourcesPersistentBooleanTrueC
XmNmappedWhenManagedXmCMappedWhenManagedBooleanTrueCSG
XmNscreenXmCScreenScreen ∗dynamicCG
XmNsensitiveXmCSensitiveBooleanTrueCSG
XmNtranslationsXmCTranslationsXtTranslationsdynamicCSG
XmNwidthXmCWidthDimensiondynamicCSG
XmNxXmCPositionPosition0CSG
XmNyXmCPositionPosition0CSG

Composite Resource Set
NameClassTypeDefaultAccess

XmNchildrenXmCReadOnlyWidgetListNULLG
XmNinsertPositionXmCInsertPositionXtOrderProcdefault procedureCSG
XmNnumChildrenXmCReadOnlyCardinal0G

Translations

XmPanedWindow inherits translations from XmManager. 

The translations for sashes within the PanedWindow are listed below.  These translations may not directly correspond to a translation table. 

BSelect Press:SashAction(Start)
BSelect Motion:SashAction(Move)
BSelect Release:SashAction(Commit)
BDrag Press:SashAction(Start)
BDrag Motion:SashAction(Move)
BDrag Release:SashAction(Commit)
KUp:SashAction(Key,DefaultIncr,Up)
MCtrl KUp:SashAction(Key,LargeIncr,Up)
KDown:SashAction(Key,DefaultIncr,Down)
MCtrl KDown:SashAction(Key,LargeIncr,Down)
KNextField:NextTabGroup()
KPrevField:PrevTabGroup()
KHelp:Help()

Action Routines

The XmPanedWindow action routines are described below:

Help():Calls the callbacks for XmNhelpCallback if any exist.  If there are no help callbacks for this widget, this action calls the help callbacks for the nearest ancestor that has them. 

NextTabGroup():
Moves the keyboard focus to the next tab group. By default each pane and sash is a tab group.

PrevTabGroup():
Moves the keyboard focus to the previous tab group. By default each pane and sash is a tab group.

SashAction(action) or SashAction(Key,increment,direction):
The Start action activates the interactive placement of the pane’s borders.  The Move action causes the sash to track the position of the pointer.  If one of the panes reaches its minimum or maximum size, adjustment continues with the next adjustable pane.  The Commit action ends sash motion. 

When sash action is caused by a keyboard event, the sash with the keyboard focus is moved according to the increment and direction specified.  DefaultIncr adjusts the sash by one line.  LargeIncr adjusts the sash by one view region.  The direction is specified as either Up or Down. 

Note that the SashAction action routine is not a direct action routine of the XmPanedWindow, but rather an action of the Sash control created by the XmPanedWindow. 

Additional Behavior

This widget has the additional behavior described below:

<FocusIn>:
Moves the keyboard focus to the sash and highlights it.

<FocusOut>:
Unsets the keyboard focus in the sash and unhighlights it.

Virtual Bindings

The bindings for virtual keys are vendor specific.  For information about bindings for virtual buttons and keys, see VirtualBindings(3X). 

RELATED INFORMATION

Composite(3X), Constraint(3X), Core(3X), XmCreatePanedWindow(3X), and XmManager(3X). 

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