spreadView-class {iSPlot} | R Documentation

## Class "spreadView": A class to represent a spreadsheet view

### Description

spreadView is a class to represent a view that is a spreadsheet. spreadView inherits from the virtual class, genView.

### Objects from the Class

Objects can be created by calls of the form `new("spreadView", ...)`.

### Slots

`clist`:
  an object of class `"GtkCList"`, i.e. the spreadsheet
`dataName`:
  a character string describing what data is shown in the view
`win`:
  an object of class `"GtkWindow"` that holds the view
`winNum`:
  a number that tells what number view this is (for example, the first view created will have winNum=1)

### Extends

Class `"genView"`, directly.

### Methods

clickEvent
  Handles button press events on a spreadsheet: identifies the row clicked and creates and handles a gUpdateDataMessage object depending on the whether the row was selected or unselected
clist
  Returns the `clist` slot
clist<-
  Sets the `clist` slot
viewUpdateData
  Called by the initialize method when creating an object of class, gUpdateDataMessage. The viewUpdateData method determines how the data will be updated based on the view mode, the view object, and the location of the event (which row was selected in this case). A list containing the slot values for the gUpdateDataMessage object is returned.

### Author(s)

Elizabeth Whalen

### See Also

`genView-class`, `plotView-class`, `sPlotView-class`, `gUpdateDataMessage-class`

### Examples

      if (interactive())
      {
        createControlWindow()
        # should load data through Open Data or Open File under the File menu
        data(USArrests)
        loadDFData(USArrests,"USArrests")
        # plotting the data should occur through Plot Data under
        # the Display menu
        createView(type = "spreadView", dataName = "USArrests")
        # this will create an object of class, spreadView
        is(get("viewList",viewEnv)[[1]],"spreadView")
      }

[Package iSPlot version 1.0.7 Index]