Content-type: text/html Man page of XmPushButtonGadget

XmPushButtonGadget

Section: (3X)
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NAME

XmPushButtonGadget - The PushButtonGadget widget class  

SYNOPSIS

#include <Xm/PushBG.h>


 

DESCRIPTION

PushButtonGadget issues commands within an application. It consists of a text label or pixmap surrounded by a border shadow. When PushButtonGadget is selected, the shadow changes to give the appearance that the PushButtonGadget has been pressed in. When PushButtonGadget is unselected, the shadow changes to give the appearance that the PushButtonGadget is out.

The default behavior associated with a PushButtonGadget in a menu depends on the type of menu system in which it resides. By default, BSelect controls the behavior of the PushButtonGadget. In addition, BMenu controls the behavior of the PushButtonGadget if it resides in a PopupMenu system. The actual mouse button used is determined by its RowColumn parent.

Thickness for a second shadow 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

PushButtonGadget inherits behavior and resources from Object, RectObj, XmGadget and XmLabelGadget classes.

The class pointer is xmPushButtonGadgetClass.

The class name is XmPushButtonGadget.
 

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).

XmPushButtonGadget

Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: XmCArmColor Default: dynamic Type: Pixel Access: CSG Class: XmCArmPixmap Default: XmUNSPECIFIED_PIXMAP Type: Pixmap Access: CSG Class: XmCdefaultButtonShadowThickness Default: dynamic Type: Dimension Access: CSG Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: XmCFillOnArm Default: True Type: Boolean Access: CSG Class: XmCMultiClick Default: dynamic Type: unsigned char Access: CSG Class: XmCShowAsDefault Default: 0 Type: Dimension Access: CSG

Specifies the list of callbacks that is called when the PushButtonGadget is activated. It is activated when the user presses and releases the active mouse button while the pointer is inside the PushButtonGadget. Activating PushButtonGadget also disarms it. For this callback the reason is XmCR_ACTIVATE. Specifies the list of callbacks that is called when PushButtonGadget is armed. It is armed when the user presses the active mouse button while the pointer is inside the PushButtonGadget. For this callback the reason is XmCR_ARM. 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. Specifies the pixmap to be used as the button face if XmNlabeltype is XmPIXMAP and PushButtonGadget is armed. This resource is disabled when the PushButtonGadget is in a menu. 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. Specifies the list of callbacks that is called when the PushButtonGadget is disarmed. PushButtonGadget is disarmed when the user presses and releases the active mouse button while the pointer is inside that gadget. For this callback, the reason is XmCR_DISARM. Forces the PushButtonGadget 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 PushButtonGadget is in a menu, this resource is ignored and assumed to be False. 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. 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

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

XmLabelGadget Resource Set

Class: XmCAccelerator Default: NULL Type: String Access: CSG Class: XmCAcceleratorText Default: NULL Type: XmString Access: CSG Class: XmCAlignment Default: dynamic Type: unsigned char Access: CSG Class: XmCFontList Default: dynamic Type: XmFontList Access: CSG Class: XmCLabelInsensitivePixmap Default: XmUNSPECIFIED_PIXMAP Type: Pixmap Access: CSG Class: XmCLabelPixmap Default: dynamic Type: Pixmap Access: CSG Class: XmCXmString Default: dynamic Type: XmString Access: CSG Class: XmCLabelType Default: XmSTRING Type: unsigned char Access: CSG Class: XmCMarginBottom Default: dynamic Type: Dimension Access: CSG Class: XmCMarginHeight Default: 2 Type: Dimension Access: CSG Class: XmCMarginLeft Default: dynamic Type: Dimension Access: CSG Class: XmCMarginRight Default: dynamic Type: Dimension Access: CSG Class: XmCMarginTop Default: dynamic Type: Dimension Access: CSG Class: XmCMarginWidth Default: 2 Type: Dimension Access: CSG Class: XmCMnemonic Default: NULL Type: KeySym Access: CSG Class: XmCMnemonicCharSet Default: dynamic Type: String Access: CSG Class: XmCRecomputeSize Default: True Type: Boolean Access: CSG Class: XmCStringDirection Default: dynamic Type: XmStringDirection Access: CSG

XmGadget Resource Set

Class: XmCBottomShadowColor Default: dynamic Type: Pixel Access: G Class: XmCCallback Default: NULL Type: XtCallbackList Access: C Class: XmCHighlightColor Default: dynamic Type: Pixel Access: G Class: XmCHighlightOnEnter Default: False Type: Boolean Access: CSG Class: XmCHighlightThickness Default: 2 Type: Dimension Access: CSG Class: XmCNavigationType Default: XmNONE Type: XmNavigationType Access: CSG Class: XmCShadowThickness Default: 2 Type: Dimension Access: CSG Class: XmCTopShadowColor Default: dynamic Type: Pixel Access: G Class: XmCTraversalOn Default: True Type: Boolean Access: CSG Class: XmCUnitType Default: dynamic Type: unsigned char Access: CSG Class: XmCUserData Default: NULL Type: XtPointer Access: CSG

RectObj Resource Set

Class: XmCSensitive Default: dynamic Type: Boolean Access: G Class: XmCBorderWidth Default: 0 Type: Dimension Access: CSG Class: XmCHeight Default: dynamic Type: Dimension Access: CSG Class: XmCSensitive Default: True Type: Boolean Access: CSG Class: XmCWidth Default: dynamic Type: Dimension Access: CSG Class: XmCPosition Default: 0 Type: Position Access: CSG Class: XmCPosition Default: 0 Type: Position Access: CSG

Object Resource Set

Class: XmCCallback Default: NULL Type: XtCallbackList Access: C


 

Callback Information

A pointer to the following structure is passed to each callback:

typedef struct {
  int      reason;
  XEvent   * event;
  int      click_count; } XmPushButtonCallbackStruct;

Indicates why the callback was invoked. Points to the XEvent that triggered the callback. 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.
 

Behavior

XmPushButtonGadget includes behavior from XmGadget. XmPushButtonGadget includes menu traversal behavior from XmLabelGadget. Additional behavior for XmPushButtonGadget is described below: Drags the contents of a PushButtonGadget 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 PushButtonGadgets used in a menu system. This action arms the PushButtonGadget.

In a menu, this action unposts any menus posted by the PushButtonGadget's parent menu, disables keyboard traversal for the menu, and enables mouse traversal for the menu. It draws the shadow in the armed state. Unless the button is already armed, it calls the XmNarmCallback callbacks.
If the button is not in a menu, this action draws the shadow in the armed state. 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. 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. In a menu, this action unposts all menus in the menu hierarchy and activates the PushButtonGadget. It calls the XmNactivateCallback callbacks and then the XmNdisarmCallback callbacks.
If the PushButtonGadget is not in a menu, 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. If the pointer is still within the button, this action calls the callbacks for XmNactivateCallback. Calls the callbacks for XmNdisarmCallback. 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 PushButtonGadget, calls the callbacks for XmNactivateCallback. Calls the callbacks for XmNdisarmCallback. In a menu, does the following: unposts all menus in the menu hierarchy; unless the button is already armed, calls the XmNarmCallback callbacks; and calls the XmNactivateCallback and XmNdisarmCallback callbacks. Outside a menu, KActivate has no effect. For PushButtonGadgets outside of a menu, if the parent is a manager, this action passes the event to the parent. 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. In a Pulldown or Popup MenuPane, unposts all menus in the menu hierarchy and 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. In a toplevel Pulldown MenuPane from a MenuBar, unposts the menu, disarms the MenuBar CascadeButton and the MenuBar, and restores keyboard focus to the widget that had the focus before the MenuBar was entered. In other Pulldown MenuPanes, unposts the menu.
In a Popup MenuPane, unposts the menu and restores keyboard focus to the widget from which the menu was posted. For a PushButtonGadget outside of a menu, if the parent is a manger, this action passes the event to the parent. 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 PushButtonGadget is not in a menu and the cursor leaves and then reenters the PushButtonGadget 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. In a menu, if keyboard traversal is enabled, this action does nothing. Otherwise, it draws the shadow in the unarmed state and calls the XmNdisarmCallback callbacks.
If the PushButtonGadget is not in a menu and the cursor leaves the PushButtonGadget 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).
 

SEE ALSO

Object(3X), RectObj(3X), XmCreatePushButtonGadget(3X), XmGadget(3X), XmLabelGadget(3X), XmRowColumn(3X)


 

Index

NAME
SYNOPSIS
DESCRIPTION
Classes
New Resources
Inherited Resources
Callback Information
Behavior
Virtual Bindings
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 02:41:11 GMT, October 02, 2010