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make sure Redo is invisible if theres nothing to redo

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This commit is contained in:
tibbi 2018-02-12 16:09:07 +01:00
parent 8386dd4286
commit d2b219201a
1 changed files with 5 additions and 0 deletions
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5
app/src/main/kotlin/com/simplemobiletools/draw/views/MyCanvas.kt
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@ -84,6 +84,11 @@ class MyCanvas(context: Context, attrs: AttributeSet) : View(context, attrs) {
}
fun redo() {
if (mUndonePaths.keys.isEmpty()) {
mListener?.toggleRedoVisibility(false)
return
}
val lastKey = mUndonePaths.keys.last()
addPath(lastKey, mUndonePaths.values.last())
mUndonePaths.remove(lastKey)