XmPushButton(3X) X11 SDE 5.4R3.00 XmPushButton(3X)
NAME
XmPushButton--The PushButton widget class
SYNOPSIS
#include <Xm/PushB.h>
DESCRIPTION
PushButton issues commands within an application. It consists of a
text label or pixmap surrounded by a border shadow. When a
PushButton is selected, the shadow changes to give the appearance
that it has been pressed in. When a PushButton is unselected, the
shadow changes to give the appearance that it is out.
The default behavior associated with a PushButton in a menu depends
on the type of menu system in which it resides. By default, BSelect
controls the behavior of the PushButton. In addition, BMenu controls
the behavior of the PushButton if it resides in a PopupMenu system.
The actual mouse button used is determined by its RowColumn parent.
Thickness for a second shadow, used when the PushButton is the
default button, may be specified by using the XmNshowAsDefault
resource. If it has a non-zero value, the Label's resources
XmNmarginLeft, XmNmarginRight, XmNmarginTop, and XmNmarginBottom may
be modified to accommodate the second shadow.
If an initial value is specified for XmNarmPixmap but not for
XmNlabelPixmap, the XmNarmPixmap value is used for XmNlabelPixmap.
Classes
PushButton inherits behavior and resources from Core, XmPrimitive,
and XmLabel Classes.
The class pointer is xmPushButtonWidgetClass.
The class name is XmPushButton.
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).
XmPushButton Resource Set
Name Class Type Default Access
-------------------------------------------------------------------------------------------------------------------
XmNactivateCallback XmCCallback XtCallbackList NULL C
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XmNarmCallback XmCCallback XtCallbackList NULL C
XmNarmColor XmCArmColor Pixel dynamic CSG
XmNarmPixmap XmCArmPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG
XmNdefaultButtonShadowThickness XmCDefaultButtonShadowThickness Dimension dynamic CSG
XmNdisarmCallback XmCCallback XtCallbackList NULL C
XmNfillOnArm XmCFillOnArm Boolean True CSG
XmNmultiClick XmCMultiClick unsigned char dynamic CSG
XmNshowAsDefault XmCShowAsDefault Dimension 0 CSG
XmNactivateCallback
Specifies the list of callbacks that is called when
PushButton is activated. PushButton is activated when the
user presses and releases the active mouse button while the
pointer is inside that widget. Activating the PushButton
also disarms it. For this callback the reason is
XmCR_ACTIVATE.
XmNarmCallback
Specifies the list of callbacks that is called when
PushButton is armed. PushButton is armed when the user
presses the active mouse button while the pointer is inside
that widget. For this callback the reason is XmCR_ARM.
XmNarmColor
Specifies the color with which to fill the armed button.
XmNfillOnArm must be set to True for this resource to have
an effect. The default for a color display is a color
between the background and the bottom shadow color. For a
monochrome display, the default is set to the foreground
color, and any text in the label appears in the background
color when the button is armed.
XmNarmPixmap
Specifies the pixmap to be used as the button face if
XmNlabelType is XmPIXMAP and PushButton is armed. This
resource is disabled when the PushButton is in a menu.
XmNdefaultButtonShadowThickness
This resource specifies the width of the default button
indicator shadow. If this resource is zero, the width of
the shadow comes from the value of the XmNshowAsDefault
resource. If this resource is greater than zero, the
XmNshowAsDefault resource is only used to specify whether
this button is the default. The default value is the
initial value of XmNshowAsDefault.
XmNdisarmCallback
Specifies the list of callbacks that is called when
PushButton is disarmed. PushButton is disarmed when the
user presses and releases the active mouse button while the
pointer is inside that widget. For this callback, the
reason is XmCR_DISARM.
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XmNfillOnArm
Forces the PushButton to fill the background of the button
with the color specified by XmNarmColor when the button is
armed and when this resource is set to True. If False,
only the top and bottom shadow colors are switched. When
the PushButton is in a menu, this resource is ignored and
assumed to be False.
XmNmultiClick
If a button click is followed by another button click
within the time span specified by the display's multi-click
time, and this resource is set to XmMULTICLICK_DISCARD, do
not process the second click. If this resource is set to
XmMULTICLICK_KEEP, process the event and increment
click_count in the callback structure. When the button is
in a menu, the default is XmMULTICLICK_DISCARD; otherwise,
for a button not in a menu, XmMULTICLICK_KEEP is the
default value.
XmNshowAsDefault
If XmNdefaultButtonShadowThickness is greater than zero, a
value greater than zero in this resource specifies to mark
this button as the default button. If
XmNdefaultButtonShadowThickness is zero, a value greater
than zero in this resource specifies to mark this button as
the default button with the shadow thickness specified by
this resource. The space between the shadow and the
default shadow is equal to the sum of both shadows. The
default value is zero. When this value is not zero, the
Label resources XmNmarginLeft, XmNmarginRight,
XmNmarginTop, and XmNmarginBottom may be modified to
accommodate the second shadow. This resource is disabled
when the PushButton is in a menu.
Inherited Resources
PushButton inherits behavior and resources from the following
superclasses. For a complete description of each resource, refer to
the man page for that superclass.
XmLabel Resource Set
Name Class Type Default Access
------------------------------------------------------------------------------------------------------------
XmNaccelerator XmCAccelerator String NULL CSG
XmNacceleratorText XmCAcceleratorText XmString NULL CSG
XmNalignment XmCAlignment unsigned char dynamic CSG
XmNfontList XmCFontList XmFontList dynamic CSG
XmNlabelInsensitivePixmap XmCLabelInsensitivePixmap Pixmap XmUNSPECIFIED_PIXMAP CSG
XmNlabelPixmap XmCLabelPixmap Pixmap dynamic CSG
XmNlabelString XmCXmString XmString dynamic CSG
XmNlabelType XmCLabelType unsigned char XmSTRING CSG
XmNmarginBottom XmCMarginBottom Dimension dynamic CSG
XmNmarginHeight XmCMarginHeight Dimension 2 CSG
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XmNmarginLeft XmCMarginLeft Dimension dynamic CSG
XmNmarginRight XmCMarginRight Dimension dynamic CSG
XmNmarginTop XmCMarginTop Dimension dynamic CSG
XmNmarginWidth XmCMarginWidth Dimension 2 CSG
XmNmnemonic XmCMnemonic KeySym NULL CSG
XmNmnemonicCharSet XmCMnemonicCharSet String XmFONTLIST_DEFAULT_TAG CSG
XmNrecomputeSize XmCRecomputeSize Boolean True CSG
XmNstringDirection XmCStringDirection XmStringDirection dynamic CSG
XmPrimitive Resource Set
Name Class Type Default Access
-------------------------------------------------------------------------------------------------
XmNbottomShadowColor XmCBottomShadowColor Pixel dynamic CSG
XmNbottomShadowPixmap XmCBottomShadowPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG
XmNforeground XmCForeground Pixel dynamic CSG
XmNhelpCallback XmCCallback XtCallbackList NULL C
XmNhighlightColor XmCHighlightColor Pixel dynamic CSG
XmNhighlightOnEnter XmCHighlightOnEnter Boolean False CSG
XmNhighlightPixmap XmCHighlightPixmap Pixmap dynamic CSG
XmNhighlightThickness XmCHighlightThickness Dimension 2 CSG
XmNnavigationType XmCNavigationType XmNavigationType XmNONE CSG
XmNshadowThickness XmCShadowThickness Dimension 2 CSG
XmNtopShadowColor XmCTopShadowColor Pixel dynamic CSG
XmNtopShadowPixmap XmCTopShadowPixmap Pixmap dynamic CSG
XmNtraversalOn XmCTraversalOn Boolean True CSG
XmNunitType XmCUnitType unsigned char dynamic CSG
XmNuserData XmCUserData XtPointer NULL CSG
Core Resource Set
Name Class Type Default Access
---------------------------------------------------------------------------------------------------------------
XmNaccelerators XmCAccelerators XtAccelerators dynamic CSG
XmNancestorSensitive XmCSensitive Boolean dynamic G
XmNbackground XmCBackground Pixel dynamic CSG
XmNbackgroundPixmap XmCPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG
XmNborderColor XmCBorderColor Pixel XtDefaultForeground CSG
XmNborderPixmap XmCPixmap Pixmap XmUNSPECIFIED_PIXMAP CSG
XmNborderWidth XmCBorderWidth Dimension 0 CSG
XmNcolormap XmCColormap Colormap dynamic CG
XmNdepth XmCDepth int dynamic CG
XmNdestroyCallback XmCCallback XtCallbackList NULL C
XmNheight XmCHeight Dimension dynamic CSG
XmNinitialResourcesPersistent XmCInitialResourcesPersistent Boolean True C
XmNmappedWhenManaged XmCMappedWhenManaged Boolean True CSG
XmNscreen XmCScreen Screen * dynamic CG
XmNsensitive XmCSensitive Boolean True CSG
XmNtranslations XmCTranslations XtTranslations dynamic CSG
XmNwidth XmCWidth Dimension dynamic CSG
XmNx XmCPosition Position 0 CSG
XmNy XmCPosition Position 0 CSG
Callback Information
A pointer to the following structure is passed to each callback:
typedef struct { int reason; XEvent * event;
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int click_count; } XmPushButtonCallbackStruct;
reason Indicates why the callback was invoked.
event Points to the XEvent that triggered the callback.
click_count
This value is valid only when the reason is XmCR_ACTIVATE.
It contains the number of clicks in the last multiclick
sequence if the XmNmultiClick resource is set to
XmMULTICLICK_KEEP, otherwise it contains 1. The activate
callback is invoked for each click if XmNmultiClick is set to
XmMULTICLICK_KEEP.
Translations
XmPushButton includes translations from Primitive.
Note that altering translations in #override or #augment mode is
undefined.
Additional XmPushButton translations for XmPushButtons not in a menu
system are listed below. These translations may not directly
correspond to a translation table. BDrag Press: ProcessDrag()
BSelect Press: Arm() BSelect Click: Activate()
Disarm() BSelect Release:Activate()
Disarm() BSelect Press 2+:MultiArm() BSelect Release
2+:MultiActivate() Disarm()
KSelect: ArmAndActivate() KHelp: Help()
XmPushButton inherits menu traversal translations from XmLabel.
Additional XmPushButton translations for PushButtons in a menu system
are listed below. In a Popup menu system, BMenu also performs the
BSelect actions. These translations may not directly correspond to a
translation table. BSelect Press: BtnDown() BSelect Release:BtnUp()
KActivate: ArmAndActivate() KSelect: ArmAndActivate() MAny
KCancel: MenuShellPopdownOne()
Action Routines
The XmPushButton action routines are described below:
Activate():
This action draws the shadow in the unarmed state. If the
button is not in a menu and if XmNfillOnArm is set to True,
the background color reverts to the unarmed color. If
XmNlabelType is XmPIXMAP, the XmNlabelPixmap is used for
the button face. If the pointer is still within the
button, this action calls the callbacks for
XmNactivateCallback.
Arm(): This action arms the PushButton. It draws the shadow in
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the armed state. If the button is not in a menu and if
XmNfillOnArm is set to True, it fills the button with the
color specified by XmNarmColor. If XmNlabelType is
XmPIXMAP, the XmNarmPixmap is used for the button face. It
calls the XmNarmCallback callbacks.
ArmAndActivate():
In a menu, does the following: Unposts all menus in the
menu hierarchy. Unless the button is already armed, calls
the XmNarmCallback callbacks. Calls the
XmNactivateCallback and XmNdisarmCallback callbacks.
Outside a menu, does the following: Draws the shadow in the armed
state and, if XmNfillOnArm is set to True, fills the button with the
color specified by XmNarmColor. If XmNlabelType is XmPIXMAP, the
XmNarmPixmap is used for the button face. Calls the XmNarmCallback
callbacks.
Outside a menu, this action also arranges for the following to
happen, either immediately or at a later time: The shadow is drawn in
the unarmed state and, if XmNfillOnArm is set to True, the background
color reverts to the unarmed color. If XmNlabelType is XmPIXMAP, the
XmNlabelPixmap is used for the button face. The XmNactivateCallback
and XmNdisarmCallback callbacks are called.
BtnDown():
This action unposts any menus posted by the PushButton's
parent menu, disables keyboard traversal for the menu, and
enables mouse traversal for the menu. It draws the shadow
in the armed state and, unless the button is already armed,
calls the XmNarmCallback callbacks.
BtnUp(): This action unposts all menus in the menu hierarchy and
activates the PushButton. It calls the XmNactivateCallback
callbacks and then the XmNdisarmCallback callbacks.
Disarm(): Calls the callbacks for XmNdisarmCallback.
Help(): In a Pulldown or Popup MenuPane, unposts all menus in the
menu hierarchy and, when the shell's keyboard focus policy
is XmEXPLICT, restores keyboard focus to the widget that
had the focus before the menu system was entered. 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.
MenuShellPopdownOne():
In a toplevel Pulldown MenuPane from a MenuBar, unposts the
menu, disarms the MenuBar CascadeButton and the MenuBar,
and, when the shell's keyboard focus policy is XmEXPLICT,
restores keyboard focus to the widget that had the focus
before the MenuBar was entered. In other Pulldown
MenuPanes, unposts the menu.
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In a Popup MenuPane, unposts the menu and restores keyboard focus to
the widget from which the menu was posted.
MultiActivate():
If XmNmultiClick is XmMULTICLICK_DISCARD, this action does
nothing.
If XmNmultiClick is XmMULTICLICK_KEEP, this action does the
following: Increments click_count in the callback structure. Draws
the shadow in the unarmed state. If the button is not in a menu and
if XmNfillOnArm is set to True, the background color reverts to the
unarmed color. If XmNlabelType is XmPIXMAP, the XmNlabelPixmap is
used for the button face. If the pointer is within the PushButton,
calls the callbacks for XmNactivateCallback. Calls the callbacks for
XmNdisarmCallback.
MultiArm():
If XmNmultiClick is XmMULTICLICK_DISCARD, this action does
nothing.
If XmNmultiClick is XmMULTICLICK_KEEP, this action does the
following: Draws the shadow in the armed state. If the button is not
in a menu and if XmNfillOnArm is set to True, fills the button with
the color specified by XmNarmColor. If XmNlabelType is XmPIXMAP, the
XmNarmPixmap is used for the button face. Calls the XmNarmCallback
callbacks.
ProcessDrag():
Drags the contents of a PushButton label, identified by
pressing BDrag. This action creates a DragContext object
whose XmNexportTargets resource is set to "COMPOUND_TEXT"
for a label type of XmSTRING; otherwise, "PIXMAP" if the
label type is XmPIXMAP. This action is undefined for
PushButtons used in a menu system.
Additional Behavior
This widget has the additional behavior described below:
<EnterWindow>:
In a menu, if keyboard traversal is enabled, this action
does nothing. Otherwise, it draws the shadow in the armed
state and calls the XmNarmCallback callbacks.
If the PushButton is not in a menu and the cursor leaves and then
reenters the PushButton's window while the button is pressed, this
action draws the shadow in the armed state. If XmNfillOnArm is set
to True, it also fills the button with the color specified by
XmNarmColor. If XmNlabelType is XmPIXMAP, the XmNarmPixmap is used
for the button face.
<LeaveWindow>:
In a menu, if keyboard traversal is enabled, this action
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does nothing. Otherwise, it draws the shadow in the
unarmed state and calls the XmNdisarmCallback callbacks.
If the PushButton is not in a menu and the cursor leaves the
PushButton's window while the button is pressed, this action draws
the shadow in the unarmed state. If XmNfillOnArm is set to True, the
background color reverts to the unarmed color. If XmNlabelType is
XmPIXMAP, the XmNlabelPixmap is used for the button face.
Virtual Bindings
The bindings for virtual keys are vendor specific. For information
about bindings for virtual buttons and keys, see VirtualBindings(3X).
RELATED INFORMATION
Core(3X), XmCreatePushButton(3X), XmLabel(3X), XmPrimitive(3X), and
XmRowColumn(3X).
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