Athena Widget Set - C Language Interface - X Consortium ... - X.Org

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Simple WidgetsName Class Type Notes Default ValuepointerColor Foreground Pixel XtDefault-ForegroundpointerColor-BackgroundBackground Pixel XtDefault-Backgroundscreen Screen Pointer R Parent'sScreensensitive Sensitive Boolean Truetranslations Translations TranslationTableNULLupdate Interval int 10width Width Dimension 120x Position Position 0y Position Position 0foregroundgetValuehighlightjumpScrollminScaleA pixel value which indexes the widget's colormap toderive the color that will be used to draw the graph.A list of callback functions to call every update seconds.This list should contain one function, which returns thevalue to be graphed by the StripChart widget. The followingsection describes the procedural interface. Behaviorwhen this list has more than one function is undefined.A pixel value which indexes the widget's colormap toderive the color that will be used to draw the scale lineson the graph.When the graph reaches the right edge of the windowit must be scrolled to the left. This resource specifiesthe number of pixels it will jump. Smooth scrolling canbe achieved by setting this resource to 1.The minimum scale for the graph. The number of divisionson the graph will always be greater than or equalto this value.updateGetting the StripChart ValueThe number of seconds between graph updates. Eachupdate is represented on the graph as a 1 pixel wideline. Every update seconds the getValue procedure willbe used to get a new graph point, and this point will beadded to the right end of the StripChart.The StripChart widget will call the application routine passed to it as the getValuecallback function every update seconds to obtain another point for the StripChartgraph.The calling interface for the getValue callback is:51
Simple Widgetsvoid(*getValueProc)( w, client_data, value);wclient_datavalueSpecifies the StripChart widget.Specifies the client data.Returns a pointer to a double. The application shouldset the address pointed to by this argument to a doublecontaining the value to be graphed on the StripChart.This function is used by the StripChart to call an application routine. The routinewill pass the value to be graphed back to the the StripChart in the value field ofthis routine.Toggle WidgetResourcesApplication Header file Class Header file ClasstoggleWidgetClassClass Name ToggleSuperclass CommandThe Toggle widget is an area, often rectangular, that displays a graphic. The graphicmay be a text string containing multiple lines of characters in an 8 bit or 16 bitcharacter set (to be displayed with a font), or in a multi-byte encoding (for use witha fontset). The graphic may also be a bitmap or pixmap.This widget maintains a Boolean state (e.g. True/False or On/Off) and changes statewhenever it is selected. When the pointer is on the Toggle widget, the Toggle widgetmay become highlighted by drawing a rectangle around its perimeter. This highlightingindicates that the Toggle widget is ready for selection. When pointer button1 is pressed and released, the Toggle widget indicates that it has changed state byreversing its foreground and background colors, and its notify action is invoked,calling all functions on its callback list. If the pointer is moved off of the widgetbefore the pointer button is released, the Toggle widget reverts to its previous foregroundand background colors, and releasing the pointer button has no effect. Thisbehavior allows the user to cancel the operation.Toggle widgets may also be part of a ``radio group.'' A radio group is a list of at leasttwo Toggle widgets in which no more than one Toggle may be set at any time. A radiogroup is identified by the widget ID of any one of its members. The convenienceroutine XawToggleGetCurrent will return information about the Toggle widget inthe radio group.Toggle widget state is preserved across changes in sensitivity.When creating a Toggle widget instance, the following resources are retrieved fromthe argument list or from the resource database:Name Class Type Notes Default Valueaccelerators Accelerators AcceleratorTableNULL52
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Athena Widget Set -C Language Inter
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Table of Contents1. Athena Widgets
Page 5 and 6: Athena Widget Set -C Language Inter
Page 7 and 8: Athena Widgetsand The Intrinsicswid
Page 9 and 10: Athena Widgetsand The Intrinsics•
Page 11 and 12: Athena Widgetsand The IntrinsicsDRD
Page 13 and 14: Using Widgetsapplication_classoptio
Page 15 and 16: Using WidgetsName Class Type Defaul
Page 17 and 18: Using Widgetsapp_contextSpecifies t
Page 19 and 20: Using Widgetsnum_argsSpecifies the
Page 21 and 22: Using Widgets6. When the argument l
Page 23 and 24: Using Widgetseither the name used t
Page 25 and 26: Using WidgetsArg arglist[10];arglis
Page 27 and 28: Simple WidgetsSuperclass LabelResou
Page 29 and 30: Simple Widgets• Processing applic
Page 31 and 32: Simple WidgetsName Class Type Notes
Page 33 and 34: Simple WidgetsResourceswill allow i
Page 35 and 36: Simple WidgetsResourcesWhen creatin
Page 37 and 38: Simple WidgetsforegroundA pixel val
Page 39 and 40: Simple WidgetsresizeSpecifies a Boo
Page 43 and 44: Simple WidgetssliderWidthPanner Act
Page 47 and 48: Simple WidgetsRepeater ActionsThe R
Page 51 and 52: Simple Widgetsbacks and passes eith
Page 53 and 54: Simple WidgetsSimple Widget\ * reso
Page 55: Simple WidgetsResourcesThe StripCha
Page 61 and 62: Simple Widgetsnotify()When the Togg
Page 63 and 64: Chapter 4. MenusThe Athena widget s
Page 65 and 66: MenusNotify(\|)Called when the user
Page 67 and 68: MenusleftBitmaprightBitmapThis is a
Page 69 and 70: Chapter 5. Text WidgetsThe Text wid
Page 71 and 72: Text Widgetswill be insensitive and
Page 73 and 74: Text WidgetsTwoThreeFourFiveSelect
Page 75 and 76: Text Widgetsscroll-one-line-up()scr
Page 77 and 78: Text Widgetskill-to-end-of-paragrap
Page 79 and 80: Text Widgetsreconnect-im()The popup
Page 81 and 82: Text WidgetsText FunctionsLeft: bac
Page 83 and 84: Text Widgetsint XawTextReplace( w,
Page 85 and 86: Text WidgetsCalling this function i
Page 87 and 88: Text WidgetsClass Header fileClassC
Page 89 and 90: Text WidgetsResourcesClass Name Tex
Page 91 and 92: Text WidgetsClearing Portions of th
Page 93 and 94: Text WidgetsFinding the Size of the
Page 95 and 96: Text WidgetsXawTextPosition Read( w
Page 97 and 98: Text Widgetstypevalue_returnlength_
Page 99 and 100: Text WidgetsResourcesSuperclass Tex
Page 101 and 102: Text WidgetsBoolean XawAsciiSaveAsF
Page 103 and 104: Text WidgetsName Class Type Notes D
Page 105 and 106: Chapter 6. Composite and Constraint
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Composite and ConstraintWidgetsName
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Composite and ConstraintWidgetsLayo
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Composite and ConstraintWidgets{Wid
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Composite and ConstraintWidgetsAppl
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Composite and ConstraintWidgets: Gr
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Composite and ConstraintWidgetsReso
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Composite and ConstraintWidgetsAppl
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Composite and ConstraintWidgetsLayo
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Creating New Widgets(Subclassing)It
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Creating New Widgets(Subclassing)dr
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Creating New Widgets(Subclassing)st
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Creating New Widgets(Subclassing)In
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AcknowledgmentsDonna ConverseMIT X
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Athena Widget Set - C Language Interface - X Consortium ... - X.Org

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