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🐛 Fix wrong pixel to screen position conversion

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This commit is contained in:
Antonio Scandurra
2015-10-01 13:05:50 +02:00
parent e94ff33d83
commit b6a0db916f
1 changed files with 8 additions and 5 deletions
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13
src/lines-yardstick.coffee
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@@ -37,7 +37,7 @@ class LinesYardstick
iterator = document.createNodeIterator(lineNode, NodeFilter.SHOW_TEXT)
column = 0
previousColumn = 0
previousDistance = Infinity
previousLeft = 0
@tokenIterator.reset(line)
while @tokenIterator.next()
@@ -67,15 +67,18 @@ class LinesYardstick
indexWithinTextNode = column - textNodeIndex
left = @leftPixelPositionForCharInTextNode(lineNode, textNode, indexWithinTextNode)
distance = Math.abs(targetLeft - left)
charWidth = left - previousLeft
return new Point(row, previousColumn) if distance > previousDistance
return new Point(row, previousColumn) if targetLeft <= previousLeft + (charWidth / 2)
previousDistance = distance
previousLeft = left
previousColumn = column
column += charLength
new Point(row, column)
if targetLeft <= previousLeft + (charWidth / 2)
new Point(row, previousColumn)
else
new Point(row, column)
pixelPositionForScreenPosition: (screenPosition, clip=true) ->
screenPosition = Point.fromObject(screenPosition)