NAME
XmArrowButton — The ArrowButton widget class
SYNOPSIS
#include <Xm/ArrowB.h>
DESCRIPTION
ArrowButton consists of a directional arrow surrounded by a border
shadow. When it is selected, the shadow changes to give the appearance
that the ArrowButton has been pressed in. When the ArrowButton is
unselected, the shadow reverts to give the appearance that the
ArrowButton is released, or out.
ArrowButton holds the XmQTactivatable trait.
Classes
ArrowButton inherits behavior, resources, and traits from the Core and
XmPrimitive classes.
The class pointer is xmArrowButtonWidgetClass.
The class name is XmArrowButton.
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).
+-------------------------------------------------------------------------------------------+
| | XmArrowButton Resource Set | | |
|Name | Class | Type | Default | Access |
+-------------------------+--------------------------+----------------+------------+--------+
|XmNactivateCallback | XmCCallback | XtCallbackList | NULL | C |
+-------------------------+--------------------------+----------------+------------+--------+
|XmNarmCallback | XmCCallback | XtCallbackList | NULL | C |
+-------------------------+--------------------------+----------------+------------+--------+
|XmNarrowDirection | XmCArrowDirection | unsigned char | XmARROW_UP | CSG |
+-------------------------+--------------------------+----------------+------------+--------+
|XmNdetailShadowThickness | XmCDetailShadowThickness | Dimension | 2 | CSG |
+-------------------------+--------------------------+----------------+------------+--------+
|XmNdisarmCallback | XmCCallback | XtCallbackList | NULL | C |
+-------------------------+--------------------------+----------------+------------+--------+
|XmNmultiClick | XmCMultiClick | unsigned char | dynamic | CSG |
+-------------------------+--------------------------+----------------+------------+--------+
+-------------------------+--------------------------+----------------+------------+--------+
XmNactivateCallback
Specifies a list of callbacks that is called when the
ArrowButton is activated. To activate the button, press and
release BSelect while the pointer is inside the ArrowButton
widget. Activating the ArrowButton also disarms it. The
reason sent by this callback is XmCR_ACTIVATE. This callback
uses the XmQTactivatable trait.
XmNarmCallback
Specifies a list of callbacks that is called when the
ArrowButton is armed. To arm this widget, press BSelect
while the pointer is inside the ArrowButton. The reason sent
by this callback is XmCR_ARM.
XmNarrowDirection
Sets the arrow direction. The values for this resource are
· XmARROW_UP
· XmARROW_DOWN
· XmARROW_LEFT
· XmARROW_RIGHT
XmNdetailShadowThickness
Specifies the thickness of the inside arrow shadows. The
default thickness is 2 pixels.
XmNdisarmCallback
Specifies a list of callbacks that is called when the
ArrowButton is disarmed. To disarm this widget, press and
release BSelect while the pointer is inside the ArrowButton.
The reason for this callback is XmCR_DISARM.
XmNmultiClick
If a button click is followed by another button click within
the time span specified by the display’s multiclick time, and
this resource is set to XmMULTICLICK_DISCARD, the second
click. is not processed. If this resource is set to
XmMULTICLICK_KEEP, the event is processed and click_count is
incremented in the callback structure. When the button is
not in a menu, the default value is XmMULTICLICK_KEEP.
Inherited Resources
ArrowButton inherits behavior and resources from the superclasses
described in the following table. For a complete description of each
resource, refer to the reference page for that superclass.
+---------------------------------------------------------------------------------------------------+
| | XmPrimitive|Resource Set | | |
|Name | Class | Type | Default | Access |
+------------------------+-----------------------+------------------+----------------------+--------+
|XmNbottomShadowColor | XmCBottomShadowColor | Pixel | dynamic | CSG |
+------------------------+-----------------------+------------------+----------------------+--------+
|XmNbottomShadowPixmap | XmCBottomShadowPixmap | Pixmap | XmUNSPECIFIED_PIXMAP | CSG |
+------------------------+-----------------------+------------------+----------------------+--------+
|XmNconvertCallback | XmCCallback | XtCallbackList | NULL | C |
+------------------------+-----------------------+------------------+----------------------+--------+
|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 |
+------------------------+-----------------------+------------------+----------------------+--------+
|XmNlayoutDirection | XmCLayoutDirection | XmDirection | dynamic | CG |
+------------------------+-----------------------+------------------+----------------------+--------+
|XmNnavigationType | XmCNavigationType | XmNavigationType | XmNONE | CSG |
+------------------------+-----------------------+------------------+----------------------+--------+
|XmNpopupHandlerCallback | XmCCallback | XtCallbackList | NULL | C |
+------------------------+-----------------------+------------------+----------------------+--------+
|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;
int click_count;
} XmArrowButtonCallbackStruct;
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
XmArrowButton includes translations for XmPrimitive. The following key
names are listed in the X standard key event translation table syntax.
This format is the one used by Motif to specify the widget actions
corresponding to a given key. A brief overview of the format is
provided under VirtualBindings(3). For a complete description of the
format, please refer to the X Toolkit Instrinsics Documentation.
<EnterWindow>:
Enter()
<LeaveWindow>:
Leave()
c<Btn1Down>:
ButtonTakeFocus()
∼c<Btn1Down>:
Arm()
∼c<Btn1Down>,∼c<Btn1Up>:
Activate() Disarm()
∼c<Btn1Down>(2+):
MultiArm()
∼c<Btn1Up>(2+):
MultiActivate()
∼c<Btn1Up>:
Activate() Disarm()
:<Key><osfActivate>:
PrimitiveParentActivate()
:<Key><osfCancel>:
PrimitiveParentCancel()
:<Key><osfSelect>:
ArmAndActivate()
:<Key><osfHelp>:
Help()
∼s ∼m ∼a <Key>Return:
PrimitiveParentActivate()
∼s ∼m ∼a <Key>space:
ArmAndActivate()
Action Routines
The XmArrowButton action routines are
Activate():
Draws the shadow in the unselected state. If the pointer is
within the ArrowButton, calls the callbacks for
XmNactivateCallback.
Arm(): Draws the shadow in the selected state and calls the
callbacks for XmNarmCallback.
ArmAndActivate():
Draws the shadow in the selected state and calls the
callbacks for XmNarmCallback. Arranges for the shadow to be
drawn in the unselected state and the callbacks for
XmNactivateCallback and XmNdisarmCallback to be called,
either immediately or at a later time.
ButtonTakeFocus():
Causes the ArrowButton to take keyboard focus when
Ctrl<Btn1Down> is pressed, without activating the widget.
Disarm(): Draws the shadow in the unselected state and calls the
callbacks for XmNdisarmCallback.
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.
MultiActivate():
If XmNmultiClick is XmMULTICLICK_DISCARD, this action does
nothing.
If XmNmultiClick is XmMULTICLICK_KEEP, this action increments
click_count in the callback structure and draws the shadow in
the unselected state. If the pointer is within the
ArrowButton, this action calls the callbacks for
XmNactivateCallback and XmNdisarmCallback.
MultiArm():
If XmNmultiClick is XmMULTICLICK_DISCARD, this action does
nothing. If XmNmultiClick is XmMULTICLICK_KEEP, this action
draws the shadow in the selected state and calls the
callbacks for XmNarmCallback.
Additional Behavior
This widget has the following additional behavior:
<EnterWindow>:
Draws the ArrowButton shadow in its selected state if the
pointer leaves and re-enters the window while <Btn1> is
pressed.
<LeaveWindow>:
Draws the ArrowButton shadow in its unselected state if the
pointer leaves the window while <Btn1> is pressed.
Virtual Bindings
The bindings for virtual keys are vendor specific. For information
about bindings for virtual buttons and keys, see VirtualBindings(3).
RELATED
Core(3), XmCreateArrowButton(3), and XmPrimitive(3).
XmArrowButton(library call)