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54396a7646
Fold placeholders needed to be real token objects so their screen / buffer deltas would be defined in ScreenLineFragment.proto.translateColumn
79 lines
1.4 KiB
CoffeeScript
79 lines
1.4 KiB
CoffeeScript
module.exports =
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class Point
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@fromObject: (object) ->
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if object instanceof Point
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object
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else
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if object instanceof Array
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[row, column] = object
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else
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{ row, column } = object
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new Point(row, column)
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constructor: (@row=0, @column=0) ->
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copy: ->
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new Point(@row, @column)
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add: (other) ->
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row = @row + other.row
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if other.row == 0
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column = @column + other.column
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else
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column = other.column
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new Point(row, column)
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subtract: (other) ->
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row = @row - other.row
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if @row == other.row
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column = @column - other.column
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else
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column = @column
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new Point(row, column)
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splitAt: (column) ->
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if @row == 0
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rightColumn = @column - column
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else
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rightColumn = @column
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[new Point(0, column), new Point(@row, rightColumn)]
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compare: (other) ->
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if @row > other.row
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1
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else if @row < other.row
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-1
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else
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if @column > other.column
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1
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else if @column < other.column
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-1
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else
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0
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isEqual: (other) ->
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other = Point.fromObject(other)
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@row == other.row and @column == other.column
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isLessThan: (other) ->
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@compare(other) < 0
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isLessThanOrEqual: (other) ->
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@compare(other) <= 0
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isGreaterThan: (other) ->
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@compare(other) > 0
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isGreaterThanOrEqual: (other) ->
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@compare(other) >= 0
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inspect: ->
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"(#{@row}, #{@column})"
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toString: ->
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"#{@row},#{@column}"
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