XmDrawnButton - Online Linux Manual Page

Section : library call

NAME

XmDrawnButton

— The DrawnButton widget class .iX "XmDrawnButton" .iX "widget class" "DrawnButton"

SYNOPSIS

#include <Xm/DrawnB.h>

DESCRIPTION

The DrawnButton widget consists of an empty widget window surrounded by a shadow border. It provides the application developer with a graphics area that can have PushButton input semantics.

Callback types are defined for widget exposure and widget resize to allow the application to redraw or reposition its graphics. If the DrawnButton widget has a highlight and shadow thickness, the application should not draw in that area. To avoid drawing in the highlight and shadow area, create the graphics context with a clipping rectangle for drawing in the widget. The clipping rectangle should take into account the size of the widget's highlight thickness and shadow. DrawnButton uses the XmQTmenuSystem

and

XmQTspecifyRenderTable

traits, and holds the

XmQTactivatable

trait.

Classes

DrawnButton inherits behavior, resources, and traits from the Core

Primitive

, and

XmLabel

classes.

The class pointer is xmDrawnButtonWidgetClass

The class name is XmDrawnButton

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

XmC

prefix and use the remaining letters. To specify one of the defined values for a resource in a

.Xdefaults

file, remove the

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).

XmDrawnButton Resource Set
Name	Class	Type	Default	Access

XmNactivateCallback	XmCCallback	XtCallbackList	NULL	C

XmNarmCallback	XmCCallback	XtCallbackList	NULL	C

XmNdisarmCallback	XmCCallback	XtCallbackList	NULL	C

XmNexposeCallback	XmCCallback	XtCallbackList	NULL	C

XmNmultiClick	XmCMultiClick	unsigned char	dynamic	CSG

XmNpushButtonEnabled	XmCPushButtonEnabled	Boolean	False	CSG

XmNresizeCallback	XmCCallback	XtCallbackList	NULL	C

XmNshadowType	XmCShadowType	unsigned char	XmSHADOW_ETCHED_IN	CSG

XmNactivateCallback

Specifies the list of callbacks that is called when the widget becomes selected. The reason sent by the callback is XmCR_ACTIVATE

. This callback uses the

XmQTactivatable

trait.

XmNarmCallback

Specifies the list of callbacks that is called when the widget becomes armed. The reason sent by the callback is XmCR_ARM

XmNdisarmCallback

Specifies the list of callbacks that is called when the widget becomes disarmed. The reason sent by the callback is XmCR_DISARM

XmNexposeCallback

Specifies the list of callbacks that is called when the widget receives an exposure event. The reason sent by the callback is XmCR_EXPOSE

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

XmNpushButtonEnabled

Enables or disables the 3-dimensional shadow drawing as in PushButton.

XmNresizeCallback

Specifies the list of callbacks that is called when the widget receives a resize event. The reason sent by the callback is XmCR_RESIZE

. The event returned for this callback is NULL.

XmNshadowType

Describes the drawing style for the DrawnButton. This resource can have the following values:

XmSHADOW_IN

Draws the DrawnButton so that the shadow appears inset. This means that the bottom shadow visuals and top shadow visuals are reversed.

XmSHADOW_OUT

Draws the DrawnButton so that the shadow appears outset.

XmSHADOW_ETCHED_IN

Draws the DrawnButton using a double line. This gives the effect of a line etched into the window. The thickness of the double line is equal to the value of XmNshadowThickness

XmSHADOW_ETCHED_OUT

Draws the DrawnButton using a double line. This gives the effect of a line coming out of the window. The thickness of the double line is equal to the value of XmNshadowThickness

Inherited Resources

DrawnButton inherits behavior and resources from the superclasses described in the following tables. For a complete description of each resource, refer to the reference page for that superclass.

XmLabel Resource Set
Name	Class	Type	Default	Access

XmNaccelerator	XmCAccelerator	String	NULL	N/A

XmNacceleratorText	XmCAcceleratorText	XmString	NULL	N/A

XmNalignment	XmCAlignment	unsigned char	dynamic	CSG

XmNfontList	XmCFontList	XmFontList	dynamic	CSG

XmNlabelInsensitivePixmap	XmCLabelInsensitivePixmap	Pixmap	XmUNSPECIFIED_PIXMAP	CSG

XmNlabelPixmap	XmCLabelPixmap	Pixmap	XmUNSPECIFIED_PIXMAP	CSG

XmNlabelString	XmCXmString	XmString	"\0"	CSG

XmNlabelType	XmCLabelType	unsigned char	XmSTRING	CSG

XmNmarginBottom	XmCMarginBottom	Dimension	0	CSG

XmNmarginHeight	XmCMarginHeight	Dimension	2	CSG

XmNmarginLeft	XmCMarginLeft	Dimension	0	CSG

XmNmarginRight	XmCMarginRight	Dimension	0	CSG

XmNmarginTop	XmCMarginTop	Dimension	0	CSG

XmNmarginWidth	XmCMarginWidth	Dimension	2	CSG

XmNmnemonic	XmCMnemonic	KeySym	NULL	N/A

XmNmnemonicCharSet	XmCMnemonicCharSet	String	XmFONTLIST_DEFAULT_TAG	N/A

XmNrecomputeSize	XmCRecomputeSize	Boolean	True	CSG

XmNrenderTable	XmCRenderTable	XmRenderTable	dynamic	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

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

; Window

window

; int

click_count

; } XmDrawnButtonCallbackStruct;

reason

Indicates why the callback was invoked.

event

Points to the XEvent

that triggered the callback. This is NULL for

XmNresizeCallback

window

Is set to the window ID in which the event occurred.

click_count

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

XmDrawnButton includes translations from Primitive. Additional XmDrawnButton translations are described in the following list. 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.

c<Btn1Down>

ButtonTakeFocus(

)

∼c

Arm(

)

∼c

,∼c

Activate() Disarm(

)

∼c

(2+)

MultiArm(

)

∼c

(2+)

MultiActivate(

)

∼c

Activate() Disarm(

)

<Key>

PrimitiveParentActivate(

)

<Key>

PrimitiveParentCancel(

)

<Key>

ArmAndActivate(

)

<Key>

Help(

)

∼s ∼m ∼a

<Key>

Return

PrimitiveParentActivate(

)

∼s ∼m ∼a

<Key>

space

ArmAndActivate(

)

Action Routines

The XmDrawnButton

action routines are

Activate(): If XmNpushButtonEnabled

is True, redraws the shadow in the unselected state; otherwise, redraws the shadow according to

XmNshadowType

. If the pointer is within the DrawnButton, calls the

XmNactivateCallback

callbacks.

Arm(): If XmNpushButtonEnabled

is True, redraws the shadow in the selected state; otherwise, redraws the shadow according to

XmNshadowType

. Calls the callbacks for

XmNarmCallback

ArmAndActivate(): If XmNpushButtonEnabled

is True, redraws the shadow in the selected state; otherwise, redraws the shadow according to

XmNshadowType

. Calls the callbacks for

XmNarmCallback

If XmNpushButtonEnabled

is True, the shadow is redrawn in the unselected state; otherwise, the shadow is redrawn according to

XmNshadowType

. The callbacks for

XmNactivateCallback

and

XmNdisarmCallback

are called. These actions happen either immediately or at a later time.

ButtonTakeFocus(): Causes the PushButton to take keyboard focus when Ctrl<Btn1Down>

is pressed, without activating the widget.

Disarm(): Marks the DrawnButton as unselected 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

XmMULTICLICK_DISCARD

, this action does nothing.

If XmNmultiClick

XmMULTICLICK_KEEP

, this action increments

click_count

in the callback structure. If

XmNpushButtonEnabled

is True, this action redraws the shadow in the unselected state; otherwise, it redraws the shadow according to

XmNshadowType

. If the pointer is within the DrawnButton, this action calls the

XmNactivateCallback

callbacks and calls the callbacks for

XmNdisarmCallback

MultiArm(): If XmNmultiClick

XmMULTICLICK_DISCARD

, this action does nothing.

If XmNmultiClick

XmMULTICLICK_KEEP

and if

XmNpushButtonEnabled

is True, this action redraws the shadow in the selected state; otherwise, it redraws the shadow according to

XmNshadowType

and calls the callbacks for

XmNarmCallback

Additional Behavior

This widget has the following additional behavior:

Draws the shadow in its selected state if XmNpushButtonEnabled

is True and if the cursor leaves and re-enters the window while

BSelect

is pressed.

Draws the shadow in its unselected state if XmNpushButtonEnabled

is True and if the cursor leaves the window while

BSelect

is pressed.

Virtual Bindings

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

Core(3), XmCreateDrawnButton

, XmLabel(3), XmPrimitive(3),

XmPushButton

, XmSeparator(3),

XmVaCreateDrawnButton

XmVaCreateManagedDrawnButton

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