Updated

Scripts/Animation/aTools/animTools/jumpToSelectedKey.py

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+'''
+========================================================================================================================
+Author: Alan Camilo
+www.alancamilo.com
+
+Requirements: aTools Package
+
+------------------------------------------------------------------------------------------------------------------------
+To install aTools, please follow the instructions in the file how_to_install.txt
+
+------------------------------------------------------------------------------------------------------------------------
+To unistall aTools, go to menu (the last button on the right), Uninstall
+
+========================================================================================================================
+''' 
+
+from maya import cmds
+from aTools.generalTools.aToolsGlobals import aToolsGlobals as G
+from aTools.commonMods import utilMod
+from aTools.commonMods import animMod
+
+def togglejumpToSelectedKey(onOff):
+    utilMod.killScriptJobs("G.jumpToSelectedKeyScriptJobs")
+    
+    if onOff:
+        G.jumpToSelectedKeyScriptJobs.append(cmds.scriptJob(runOnce = False, killWithScene = False,  event =('SelectionChanged',  animMod.jumpToSelectedKey)) )
+
+        animMod.jumpToSelectedKey()
+
+def getMinMax():            
+          
+    rangeStart  = cmds.playbackOptions(query=True, minTime=True)
+    rangeEnd    = cmds.playbackOptions(query=True, maxTime=True)
+    curvesShown = cmds.animCurveEditor( 'graphEditor1GraphEd', query=True, curvesShown=True)
+    keysTimes   = []
+    keysValues  = []
+    keysShown   = []
+    
+    if curvesShown:
+        for aCurve in curvesShown:
+            keysTimes.extend(cmds.keyframe(aCurve, query=True, timeChange=True))
+            keysValues.extend(cmds.keyframe(aCurve, query=True, valueChange=True))
+            for n, key in enumerate(keysTimes):
+                if rangeStart <= key <= rangeEnd:
+                    keysShown.append(keysValues[n])
+                    
+        keyMax = max(keysShown)
+        keyMin = min(keysShown)
+        total  = keyMax - keyMin
+        if total == 0: total = 1
+        border = total * .1
+        
+        return [keyMax+border, keyMin-border]
+    else:
+        return [0, 100]
+