Updated

Scripts/Animation/aTools/animTools/framePlaybackRange.py

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+'''
+========================================================================================================================
+Author: Alan Camilo
+www.alancamilo.com
+Modified: Michael Klimenko
+
+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
+import importlib
+
+def toggleframePlaybackRange(onOff):
+    utilMod.killScriptJobs("G.framePlaybackRangeScriptJobs")
+    
+    if onOff:
+        G.framePlaybackRangeScriptJobs.append(cmds.scriptJob(runOnce = False, killWithScene = False,  event =('ToolChanged',  framePlaybackRangeFn)) )
+        G.framePlaybackRangeScriptJobs.append(cmds.scriptJob(runOnce = False, killWithScene = False,  event =('SelectionChanged',  framePlaybackRangeFn)) )
+        
+        framePlaybackRangeFn()
+ 
+def getMinMax(rangeStart=None, rangeEnd=None):            
+    
+    displayNormalized = cmds.animCurveEditor( 'graphEditor1GraphEd', query=True, displayNormalized=True)
+    if displayNormalized: return [-1.1, 1.1]  
+   
+    if not rangeStart:
+        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:
+            kTimes = cmds.keyframe(aCurve, query=True, timeChange=True)
+            if kTimes:
+                keysTimes.extend(kTimes)
+                keysValues.extend(cmds.keyframe(aCurve, query=True, valueChange=True))
+                for n, key in enumerate(keysTimes):
+                    if rangeStart <= key <= rangeEnd:
+                        keysShown.append(keysValues[n])
+        
+        if not keysShown:
+            keyMax = 0
+            keyMin = 0
+        else:                  
+            keyMax = max(keysShown)
+            keyMin = min(keysShown)
+        
+        total  = keyMax - keyMin
+        if total == 0: total = 10
+        border = total * .1
+        
+        return [keyMax+border, keyMin-border]
+    else:
+        return [0, 100]
+
+def framePlaybackRangeFn(rangeStart=None, rangeEnd=None): 
+    
+    from aTools.commonMods import animMod; importlib.reload(animMod)
+    animMod.filterNonAnimatedCurves()
+    
+    if not rangeStart:
+        rangeStart  = cmds.playbackOptions(query=True, minTime=True) -1
+        rangeEnd    = cmds.playbackOptions(query=True, maxTime=True) +1
+    val         = getMinMax(rangeStart, rangeEnd)
+    minVal      = val[0]
+    maxVal      = val[1]
+    
+    cmds.animView('graphEditor1GraphEd', startTime=rangeStart, endTime=rangeEnd, minValue=minVal, maxValue=maxVal)
+    
+