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now .makeSparseImages(..) if close to O(n) when the set is mostly sorted, so all connected operations are quite a bit faster, especially shifting left/right...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2015-12-07 04:25:35 +03:00
parent 61eea2938e
commit 440eedbb36
1 changed files with 16 additions and 4 deletions
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20
ui (gen4)/data.js
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@ -230,8 +230,16 @@ var DataPrototype = {
gids = gids.slice()
}
gids.forEach(function(e){
var i = order.indexOf(e)
gids.forEach(function(e, i){
// if the element is in its place alredy do nothing...
if(e == order[i] && e == target[i]){
return
}
// NOTE: try and avoid the expensive .indexOf(..) as much as
// possible...
i = e != order[i] ? order.indexOf(e) : i
if(i >= 0){
var o = target[i]
// save overwritten target items if keep_target_items
@ -1233,7 +1241,7 @@ var DataPrototype = {
},
// Gather gids into an connected section...
// Gather gids into a connected section...
//
// The section is positioned relative to a reference gid, which also
// determines the ribbon.
@ -1357,7 +1365,8 @@ var DataPrototype = {
}
})
// XXX this is cheating...
// NOTE: this is cheating, but if it's fast and simple I do
// not care ;)
this.updateImagePositions()
}
@ -1873,6 +1882,8 @@ var DataPrototype = {
//
// Targets MUST be listed in order of occurrence.
//
// Returns list of split sections.
//
// NOTE: this will not affect the original data object...
// NOTE: this might result in empty ribbons, if no images are in a
// given ribbon in the section to be split...
@ -1935,6 +1946,7 @@ var DataPrototype = {
// if it is needed to keep the original intact, just .clone() it...
//
// XXX test more complex cases...
// XXX appears to be broken for joining sets via 'base' align...
join: function(){
var args = Array.apply(null, arguments)
var align = typeof(args[0]) == typeof('str') ? args.splice(0, 1)[0] : 'base'