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CHAPTER 10
Recognition: Advanced Topics
Summary of Advanced Topics in Recognition 10-51
// height of cells in pixels
cellHeight: int, // system-provided default is 50
// recConfig frame specifying this view’s recog behavior
recConfig: frame, // system provides default
// specifies appearance & behavior of formatted comb view
template: frame, // optional protoCharEdit template
// string displayed when view opens; arg to SetupString method
text: string, // optional
// index of leftmost non-space character in comb view
wordLeft: int, // system-provided value
// index of cell to the right of rightmost non-space character
wordRight: int, // system-provided value
// index into text slot of character occupying leftmost cell
dispLeft: int, // system-provided value; changes after scrolling
// offset in pixels from leftmost edge of comb view
// to leftmost edge of first cell displayed
dispIndent: int,
// return word from comb view w/out leading/trailing spaces
CurrentWord: function,
// return cleaned-up version of word suitable for ext display
GetWordForDisplay: function, // calls CleanupString if provided
// deletes specified text from comb view
DeleteText: function,
// scrolls contents of comb view left or right as specified
Scroll: function,
// makes comb view use current values of text & template slots
UseTextAndTemplate: function,
// Sets the string displayed by the comb view
SetNewWord: function,
// performs internal initialization using current values of
// text and template slot; call after calling SetNewWord
UseNewWord: function,
// Returns true when template’s format slot is non-nil
FixedWord: function,
// Returns number of chars residing in templates format slot
FixedWordLength: function,
// optional app-defined methods
// you supply optional fn to update external display
DisplayExternal: function, // message sent when comb view changes
// you supply optional fn to save your undo info
SaveUndoState: function, // message sent when comb view changes
// you supply optional fn to do app-specific tasks for undo
RestoreUndoState: function, // msg sent to undo comb view changes
…}
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