merged many changes in from acq4:

 - added vertical lines / regions for plots
 - added gradient editor widget
 - many bugfixes
 - cleaned up imageview a bit

GradientWidget.py

+# -*- coding: utf-8 -*-
+from PyQt4 import QtGui, QtCore
+
+
+class TickSlider(QtGui.QGraphicsView):
+    def __init__(self, parent=None, orientation='bottom', allowAdd=True, **kargs):
+        QtGui.QGraphicsView.__init__(self, parent)
+        #self.orientation = orientation
+        self.allowAdd = allowAdd
+        self.setVerticalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
+        self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
+        self.setTransformationAnchor(QtGui.QGraphicsView.NoAnchor)
+        self.setResizeAnchor(QtGui.QGraphicsView.AnchorViewCenter)
+        self.setRenderHints(QtGui.QPainter.Antialiasing | QtGui.QPainter.TextAntialiasing)
+        self.length = 100
+        self.tickSize = 15
+        self.orientations = {
+            'left': (270, 1, -1), 
+            'right': (270, 1, 1), 
+            'top': (0, 1, -1), 
+            'bottom': (0, 1, 1)
+        }
+            
+        self.scene = QtGui.QGraphicsScene()
+        self.setScene(self.scene)
+        
+        self.ticks = {}
+        self.maxDim = 20
+        self.setOrientation(orientation)
+        self.setFrameStyle(QtGui.QFrame.NoFrame | QtGui.QFrame.Plain)
+        self.setBackgroundRole(QtGui.QPalette.NoRole)
+        self.setMouseTracking(True)
+        
+    def keyPressEvent(self, ev):
+        ev.ignore()
+     
+    def setMaxDim(self, mx=None):
+        if mx is None:
+            mx = self.maxDim
+        else:
+            self.maxDim = mx
+            
+        if self.orientation in ['bottom', 'top']:
+            self.setFixedHeight(mx)
+            self.setMaximumWidth(16777215)
+        else:
+            self.setFixedWidth(mx)
+            self.setMaximumHeight(16777215)
+        
+    def setOrientation(self, ort):
+        self.orientation = ort
+        self.resetTransform()
+        self.rotate(self.orientations[ort][0])
+        self.scale(*self.orientations[ort][1:])
+        self.setMaxDim()
+        
+    def addTick(self, x, color=None, movable=True):
+        if color is None:
+            color = QtGui.QColor(255,255,255)
+        tick = Tick(self, [x*self.length, 0], color, movable, self.tickSize)
+        self.ticks[tick] = x
+        self.scene.addItem(tick)
+        return tick
+                
+    def removeTick(self, tick):
+        del self.ticks[tick]
+        self.scene.removeItem(tick)
+                
+    def tickMoved(self, tick, pos):
+        #print "tick changed"
+        ## Correct position of tick if it has left bounds.
+        newX = min(max(0, pos.x()), self.length)
+        pos.setX(newX)
+        tick.setPos(pos)
+        self.ticks[tick] = float(newX) / self.length
+    
+    def tickClicked(self, tick, ev):
+        if ev.button() == QtCore.Qt.RightButton:
+            self.removeTick(tick)
+    
+    def widgetLength(self):
+        if self.orientation in ['bottom', 'top']:
+            return self.width()
+        else:
+            return self.height()
+    
+    def resizeEvent(self, ev):
+        wlen = max(40, self.widgetLength())
+        self.setLength(wlen-self.tickSize)
+        bounds = self.scene.itemsBoundingRect()
+        bounds.setLeft(min(-self.tickSize*0.5, bounds.left()))
+        bounds.setRight(max(self.length + self.tickSize, bounds.right()))
+        #bounds.setTop(min(bounds.top(), self.tickSize))
+        #bounds.setBottom(max(0, bounds.bottom()))
+        self.setSceneRect(bounds)
+        self.fitInView(bounds, QtCore.Qt.KeepAspectRatio)
+        
+    def setLength(self, newLen):
+        for t, x in self.ticks.items():
+            t.setPos(x * newLen, t.pos().y())
+        self.length = float(newLen)
+        
+    def mousePressEvent(self, ev):
+        QtGui.QGraphicsView.mousePressEvent(self, ev)
+        self.ignoreRelease = False
+        if len(self.items(ev.pos())) > 0:  ## Let items handle their own clicks
+            self.ignoreRelease = True
+        
+    def mouseReleaseEvent(self, ev):
+        QtGui.QGraphicsView.mouseReleaseEvent(self, ev)
+        if self.ignoreRelease:
+            return
+            
+        pos = self.mapToScene(ev.pos())
+        if pos.x() < 0 or pos.x() > self.length:
+            return
+        if pos.y() < 0 or pos.y() > self.tickSize:
+            return
+            
+        if ev.button() == QtCore.Qt.LeftButton and self.allowAdd:
+            pos.setX(min(max(pos.x(), 0), self.length))
+            self.addTick(pos.x()/self.length)
+        elif ev.button() == QtCore.Qt.RightButton:
+            self.showMenu(ev)
+            
+        
+    def showMenu(self, ev):
+        pass
+
+    def setTickColor(self, tick, color):
+        tick = self.getTick(tick)
+        tick.color = color
+        tick.setBrush(QtGui.QBrush(QtGui.QColor(tick.color)))
+
+    def setTickValue(self, tick, val):
+        tick = self.getTick(tick)
+        val = min(max(0.0, val), 1.0)
+        x = val * self.length
+        pos = tick.pos()
+        pos.setX(x)
+        tick.setPos(pos)
+        self.ticks[tick] = val
+        
+    def tickValue(self, tick):
+        tick = self.getTick(tick)
+        return self.ticks[tick]
+        
+    def getTick(self, tick):
+        if type(tick) is int:
+            tick = self.listTicks()[tick][0]
+        return tick
+
+    def mouseMoveEvent(self, ev):
+        QtGui.QGraphicsView.mouseMoveEvent(self, ev)
+        #print ev.pos(), ev.buttons()
+
+    def listTicks(self):
+        ticks = self.ticks.items()
+        ticks.sort(lambda a,b: cmp(a[1], b[1]))
+        return ticks
+
+
+class GradientWidget(TickSlider):
+    def __init__(self, *args, **kargs):
+        TickSlider.__init__(self, *args, **kargs)
+        self.rectSize = 15
+        self.gradRect = QtGui.QGraphicsRectItem(QtCore.QRectF(0, -self.rectSize, 100, self.rectSize))
+        self.colorMode = 'rgb'
+        
+        
+        #self.gradient = QtGui.QLinearGradient(QtCore.QPointF(0,0), QtCore.QPointF(100,0))
+        self.scene.addItem(self.gradRect)
+        self.addTick(0, QtGui.QColor(0,0,0), True)
+        self.addTick(1, QtGui.QColor(255,0,0), True)
+        
+        self.setMaxDim(self.rectSize + self.tickSize)
+        self.updateGradient()
+            
+        #self.btn = QtGui.QPushButton('RGB')
+        #self.btnProxy = self.scene.addWidget(self.btn)
+        #self.btnProxy.setFlag(self.btnProxy.ItemIgnoresTransformations)
+        #self.btnProxy.scale(0.7, 0.7)
+        #self.btnProxy.translate(-self.btnProxy.sceneBoundingRect().width()+self.tickSize/2., 0)
+        #if self.orientation == 'bottom':
+            #self.btnProxy.translate(0, -self.rectSize)
+            
+    def setColorMode(self, cm):
+        if cm not in ['rgb', 'hsv']:
+            raise Exception("Unknown color mode %s" % str(cm))
+        self.colorMode = cm
+        self.updateGradient()
+        
+    def updateGradient(self):
+        self.gradient = self.getGradient()
+        self.gradRect.setBrush(QtGui.QBrush(self.gradient))
+        self.emit(QtCore.SIGNAL('gradientChanged'), self)
+        
+    def setLength(self, newLen):
+        TickSlider.setLength(self, newLen)
+        self.gradRect.setRect(0, -self.rectSize, newLen, self.rectSize)
+        self.updateGradient()
+        
+        
+        
+    def tickClicked(self, tick, ev):
+        if ev.button() == QtCore.Qt.LeftButton:
+            if not tick.colorChangeAllowed:
+                return
+            color = QtGui.QColorDialog.getColor(tick.color, None, "Select Color", QtGui.QColorDialog.ShowAlphaChannel)
+            if color.isValid():
+                self.setTickColor(tick, color)
+                self.updateGradient()
+        elif ev.button() == QtCore.Qt.RightButton:
+            if not tick.removeAllowed:
+                return
+            if len(self.ticks) > 2:
+                self.removeTick(tick)
+                self.updateGradient()
+                
+    def tickMoved(self, tick, pos):
+        TickSlider.tickMoved(self, tick, pos)
+        self.updateGradient()
+
+
+    def getGradient(self):
+        g = QtGui.QLinearGradient(QtCore.QPointF(0,0), QtCore.QPointF(self.length,0))
+        if self.colorMode == 'rgb':
+            ticks = self.listTicks()
+            g.setStops([(x, QtGui.QColor(t.color)) for t,x in ticks])
+        elif self.colorMode == 'hsv':  ## HSV mode is approximated for display by interpolating 10 points between each stop
+            ticks = self.listTicks()
+            stops = []
+            stops.append((ticks[0][1], ticks[0][0].color))
+            for i in range(1,len(ticks)):
+                x1 = ticks[i-1][1]
+                x2 = ticks[i][1]
+                dx = (x2-x1) / 10.
+                for j in range(1,10):
+                    x = x1 + dx*j
+                    stops.append((x, self.getColor(x)))
+                stops.append((x2, self.getColor(x2)))
+            g.setStops(stops)
+        return g
+        
+    def getColor(self, x):
+        ticks = self.listTicks()
+        if x <= ticks[0][1]:
+            return QtGui.QColor(ticks[0][0].color)  # always copy colors before handing them out
+        if x >= ticks[-1][1]:
+            return QtGui.QColor(ticks[-1][0].color)
+            
+        x2 = ticks[0][1]
+        for i in range(1,len(ticks)):
+            x1 = x2
+            x2 = ticks[i][1]
+            if x1 <= x and x2 >= x:
+                break
+                
+        dx = (x2-x1)
+        if dx == 0:
+            f = 0.
+        else:
+            f = (x-x1) / dx
+        c1 = ticks[i-1][0].color
+        c2 = ticks[i][0].color
+        if self.colorMode == 'rgb':
+            r = c1.red() * (1.-f) + c2.red() * f
+            g = c1.green() * (1.-f) + c2.green() * f
+            b = c1.blue() * (1.-f) + c2.blue() * f
+            return QtGui.QColor(r, g, b)
+        elif self.colorMode == 'hsv':
+            h1,s1,v1,_ = c1.getHsv()
+            h2,s2,v2,_ = c2.getHsv()
+            h = h1 * (1.-f) + h2 * f
+            s = s1 * (1.-f) + s2 * f
+            v = v1 * (1.-f) + v2 * f
+            c = QtGui.QColor()
+            c.setHsv(h,s,v)
+            return c
+                    
+                    
+
+    def mouseReleaseEvent(self, ev):
+        TickSlider.mouseReleaseEvent(self, ev)
+        self.updateGradient()
+        
+    def addTick(self, x, color=None, movable=True):
+        if color is None:
+            color = self.getColor(x)
+        t = TickSlider.addTick(self, x, color=color, movable=movable)
+        t.colorChangeAllowed = True
+        t.removeAllowed = True
+        return t
+        
+
+class GammaWidget(TickSlider):
+    pass
+    
+        
+class Tick(QtGui.QGraphicsPolygonItem):
+    def __init__(self, view, pos, color, movable=True, scale=10):
+        #QObjectWorkaround.__init__(self)
+        self.movable = movable
+        self.view = view
+        self.scale = scale
+        self.color = color
+        #self.endTick = endTick
+        self.pg = QtGui.QPolygonF([QtCore.QPointF(0,0), QtCore.QPointF(-scale/3**0.5,scale), QtCore.QPointF(scale/3**0.5,scale)])
+        QtGui.QGraphicsPolygonItem.__init__(self, self.pg)
+        self.setPos(pos[0], pos[1])
+        self.setFlags(QtGui.QGraphicsItem.ItemIsMovable | QtGui.QGraphicsItem.ItemIsSelectable)
+        self.setBrush(QtGui.QBrush(QtGui.QColor(self.color)))
+        if self.movable:
+            self.setZValue(1)
+        else:
+            self.setZValue(0)
+
+    #def x(self):
+        #return self.pos().x()/100.
+
+    def mouseMoveEvent(self, ev):
+        #print self, "move", ev.scenePos()
+        if not self.movable:
+            return
+        if not ev.buttons() & QtCore.Qt.LeftButton:
+            return
+            
+            
+        newPos = ev.scenePos() + self.mouseOffset
+        newPos.setY(self.pos().y())
+        #newPos.setX(min(max(newPos.x(), 0), 100))
+        self.setPos(newPos)
+        self.view.tickMoved(self, newPos)
+        self.movedSincePress = True
+        #self.emit(QtCore.SIGNAL('tickChanged'), self)
+        ev.accept()
+
+    def mousePressEvent(self, ev):
+        self.movedSincePress = False
+        if ev.button() == QtCore.Qt.LeftButton:
+            ev.accept()
+            self.mouseOffset = self.pos() - ev.scenePos()
+            self.pressPos = ev.scenePos()
+        elif ev.button() == QtCore.Qt.RightButton:
+            ev.accept()
+            #if self.endTick:
+                #return
+            #self.view.tickChanged(self, delete=True)
+            
+    def mouseReleaseEvent(self, ev):
+        #print self, "release", ev.scenePos()
+        if not self.movedSincePress:
+            self.view.tickClicked(self, ev)
+        
+        #if ev.button() == QtCore.Qt.LeftButton and ev.scenePos() == self.pressPos:
+            #color = QtGui.QColorDialog.getColor(self.color, None, "Select Color", QtGui.QColorDialog.ShowAlphaChannel)
+            #if color.isValid():
+                #self.color = color
+                #self.setBrush(QtGui.QBrush(QtGui.QColor(self.color)))
+                ##self.emit(QtCore.SIGNAL('tickChanged'), self)
+                #self.view.tickChanged(self)
+        
+        
+    
\ No newline at end of file

GradientWidgetTest.py

+# -*- coding: utf-8 -*-
+
+from GradientWidget import *
+from PyQt4 import QtGui
+
+app = QtGui.QApplication([])
+w = QtGui.QMainWindow()
+w.show()
+w.resize(400,400)
+cw = QtGui.QWidget()
+w.setCentralWidget(cw)
+
+l = QtGui.QGridLayout()
+l.setSpacing(0)
+cw.setLayout(l)
+
+w1 = GradientWidget(orientation='top')
+w2 = GradientWidget(orientation='right', allowAdd=False)
+w2.setTickColor(1, QtGui.QColor(255,255,255))
+w3 = GradientWidget(orientation='bottom')
+w4 = TickSlider(orientation='left')
+
+l.addWidget(w1, 0, 1)
+l.addWidget(w2, 1, 2)
+l.addWidget(w3, 2, 1)
+l.addWidget(w4, 1, 0)

GraphicsView.py

@@ -10,11 +10,11 @@ from PyQt4 import QtCore, QtGui, QtOpenGL, QtSvg
 #import time
 from Point import *
 #from vector import *
-
+import sys
             
         
 class GraphicsView(QtGui.QGraphicsView):
-    def __init__(self, *args):
+    def __init__(self, parent=None, useOpenGL=True):
         """Re-implementation of QGraphicsView that removes scrollbars and allows unambiguous control of the 
         viewed coordinate range. Also automatically creates a QGraphicsScene and a central QGraphicsWidget
         that is automatically scaled to the full view geometry.
@@ -26,8 +26,9 @@ class GraphicsView(QtGui.QGraphicsView):
         The view can be panned using the middle mouse button and scaled using the right mouse button if
         enabled via enableMouse()."""
         
-        QtGui.QGraphicsView.__init__(self, *args)
-        self.setViewport(QtOpenGL.QGLWidget())
+        QtGui.QGraphicsView.__init__(self, parent)
+        self.useOpenGL(useOpenGL)
+        
         palette = QtGui.QPalette()
         brush = QtGui.QBrush(QtGui.QColor(0,0,0))
         brush.setStyle(QtCore.Qt.SolidPattern)
@@ -49,6 +50,7 @@ class GraphicsView(QtGui.QGraphicsView):
         #self.setResizeAnchor(QtGui.QGraphicsView.NoAnchor)
         self.setViewportUpdateMode(QtGui.QGraphicsView.SmartViewportUpdate)
         self.setSceneRect(QtCore.QRectF(-1e10, -1e10, 2e10, 2e10))
+        #self.setSceneRect(1, 1, 0, 0) ## Set an empty (but non-zero) scene rect so that the view doesn't try to automatically update for us.
         #self.setInteractive(False)
         self.lockedViewports = []
         self.lastMousePos = None
@@ -68,6 +70,18 @@ class GraphicsView(QtGui.QGraphicsView):
         self.scaleCenter = False  ## should scaling center around view center (True) or mouse click (False)
         self.clickAccepted = False
         
+    def useOpenGL(self, b=True):
+        if b:
+            v = QtOpenGL.QGLWidget()
+        else:
+            v = QtGui.QWidget()
+            
+        #v.setStyleSheet("background-color: #000000;")
+        self.setViewport(v)
+            
+    def keyPressEvent(self, ev):
+        ev.ignore()
+        
     def setCentralItem(self, item):
         if self.centralWidget is not None:
             self.scene().removeItem(self.centralWidget)
@@ -77,6 +91,9 @@ class GraphicsView(QtGui.QGraphicsView):
     def addItem(self, *args):
         return self.scene().addItem(*args)
         
+    def removeItem(self, *args):
+        return self.scene().removeItem(*args)
+        
     def enableMouse(self, b=True):
         self.mouseEnabled = b
         self.autoPixelRange = (not b)
@@ -128,6 +145,8 @@ class GraphicsView(QtGui.QGraphicsView):
                 v.setXRange(self.range, padding=0)
         
     def visibleRange(self):
+        """Return the boundaries of the view in scene coordinates"""
+        ## easier to just return self.range ?
         r = QtCore.QRectF(self.rect())
         return self.viewportTransform().inverted()[0].mapRect(r)
 
@@ -347,6 +366,16 @@ class GraphicsView(QtGui.QGraphicsView):
         self.setRenderHints(rh)
         self.png.save(fileName)
         
+    def writePs(self, fileName=None):
+        if fileName is None:
+            fileName = str(QtGui.QFileDialog.getSaveFileName())
+        printer = QtGui.QPrinter(QtGui.QPrinter.HighResolution)
+        printer.setOutputFileName(fileName)
+        painter = QtGui.QPainter(printer)
+        self.render(painter)
+        painter.end()
+        
+        
     #def getFreehandLine(self):
         
         ## Wait for click

ImageView.py

@@ -17,6 +17,11 @@ from ImageViewTemplate import *
 from graphicsItems import *
 from widgets import ROI
 from PyQt4 import QtCore, QtGui
+import sys
+from numpy import ndarray
+import ptime
+
+from SignalProxy import proxyConnect
 
 class PlotROI(ROI):
     def __init__(self, size):
@@ -35,12 +40,25 @@ class ImageView(QtGui.QWidget):
         self.ui = Ui_Form()
         self.ui.setupUi(self)
         self.scene = self.ui.graphicsView.sceneObj
+        
+        self.ignoreTimeLine = False
+        
+        if 'linux' in sys.platform.lower():   ## Stupid GL bug in linux.
+            self.ui.graphicsView.setViewport(QtGui.QWidget())
+        
         self.ui.graphicsView.enableMouse(True)
         self.ui.graphicsView.autoPixelRange = False
         self.ui.graphicsView.setAspectLocked(True)
         self.ui.graphicsView.invertY()
         self.ui.graphicsView.enableMouse()
         
+        self. ticks = [t[0] for t in self.ui.gradientWidget.listTicks()]
+        self.ticks[0].colorChangeAllowed = False
+        self.ticks[1].colorChangeAllowed = False
+        self.ui.gradientWidget.allowAdd = False
+        self.ui.gradientWidget.setTickColor(self.ticks[1], QtGui.QColor(255,255,255))
+        self.ui.gradientWidget.setOrientation('right')
+        
         self.imageItem = ImageItem()
         self.scene.addItem(self.imageItem)
         self.currentIndex = 0
@@ -51,26 +69,46 @@ class ImageView(QtGui.QWidget):
         self.roi.setZValue(20)
         self.scene.addItem(self.roi)
         self.roi.hide()
-        self.ui.roiPlot.hide()
+        self.normRoi = PlotROI(10)
+        self.normRoi.setPen(QtGui.QPen(QtGui.QColor(255,255,0)))
+        self.normRoi.setZValue(20)
+        self.scene.addItem(self.normRoi)
+        self.normRoi.hide()
+        #self.ui.roiPlot.hide()
         self.roiCurve = self.ui.roiPlot.plot()
-        self.roiTimeLine = InfiniteLine(self.ui.roiPlot, 0)
-        self.roiTimeLine.setPen(QtGui.QPen(QtGui.QColor(255, 255, 0, 200)))
-        self.ui.roiPlot.addItem(self.roiTimeLine)
-        
-        self.normLines = []
-        for i in [0,1]:
-            l = InfiniteLine(self.ui.roiPlot, 0)
-            l.setPen(QtGui.QPen(QtGui.QColor(0, 100, 200, 200)))
-            self.ui.roiPlot.addItem(l)
-            self.normLines.append(l)
-            l.hide()
+        self.timeLine = InfiniteLine(self.ui.roiPlot, 0, movable=True)
+        self.timeLine.setPen(QtGui.QPen(QtGui.QColor(255, 255, 0, 200)))
+        self.timeLine.setZValue(1)
+        self.ui.roiPlot.addItem(self.timeLine)
+        self.ui.splitter.setSizes([self.height()-35, 35])
+        self.ui.roiPlot.showScale('left', False)
+        
+        self.keysPressed = {}
+        self.playTimer = QtCore.QTimer()
+        self.playRate = 0
+        self.lastPlayTime = 0
+        
+        #self.normLines = []
+        #for i in [0,1]:
+            #l = InfiniteLine(self.ui.roiPlot, 0)
+            #l.setPen(QtGui.QPen(QtGui.QColor(0, 100, 200, 200)))
+            #self.ui.roiPlot.addItem(l)
+            #self.normLines.append(l)
+            #l.hide()
+        self.normRgn = LinearRegionItem(self.ui.roiPlot, 'vertical')
+        self.normRgn.setZValue(0)
+        self.ui.roiPlot.addItem(self.normRgn)
+        self.normRgn.hide()
             
-        for fn in ['addItem']:
+        ## wrap functions from graphics view
+        for fn in ['addItem', 'removeItem']:
             setattr(self, fn, getattr(self.ui.graphicsView, fn))
 
-        QtCore.QObject.connect(self.ui.timeSlider, QtCore.SIGNAL('valueChanged(int)'), self.timeChanged)
-        QtCore.QObject.connect(self.ui.whiteSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateImage)
-        QtCore.QObject.connect(self.ui.blackSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateImage)
+        #QtCore.QObject.connect(self.ui.timeSlider, QtCore.SIGNAL('valueChanged(int)'), self.timeChanged)
+        self.timeLine.connect(QtCore.SIGNAL('positionChanged'), self.timeLineChanged)
+        #QtCore.QObject.connect(self.ui.whiteSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateImage)
+        #QtCore.QObject.connect(self.ui.blackSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateImage)
+        QtCore.QObject.connect(self.ui.gradientWidget, QtCore.SIGNAL('gradientChanged'), self.updateImage)
         QtCore.QObject.connect(self.ui.roiBtn, QtCore.SIGNAL('clicked()'), self.roiClicked)
         self.roi.connect(QtCore.SIGNAL('regionChanged'), self.roiChanged)
         QtCore.QObject.connect(self.ui.normBtn, QtCore.SIGNAL('toggled(bool)'), self.normToggled)
@@ -80,21 +118,151 @@ class ImageView(QtGui.QWidget):
         QtCore.QObject.connect(self.ui.normROICheck, QtCore.SIGNAL('clicked()'), self.updateNorm)
         QtCore.QObject.connect(self.ui.normFrameCheck, QtCore.SIGNAL('clicked()'), self.updateNorm)
         QtCore.QObject.connect(self.ui.normTimeRangeCheck, QtCore.SIGNAL('clicked()'), self.updateNorm)
-        QtCore.QObject.connect(self.ui.normStartSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateNorm)
-        QtCore.QObject.connect(self.ui.normStopSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateNorm)
+        QtCore.QObject.connect(self.playTimer, QtCore.SIGNAL('timeout()'), self.timeout)
+        
+        ##QtCore.QObject.connect(self.ui.normStartSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateNorm)
+        #QtCore.QObject.connect(self.ui.normStopSlider, QtCore.SIGNAL('valueChanged(int)'), self.updateNorm)
+        self.normProxy = proxyConnect(self.normRgn, QtCore.SIGNAL('regionChanged'), self.updateNorm)
+        self.normRoi.connect(QtCore.SIGNAL('regionChangeFinished'), self.updateNorm)
         
         self.ui.roiPlot.registerPlot(self.name + '_ROI')
+        
+        self.noRepeatKeys = [QtCore.Qt.Key_Right, QtCore.Qt.Key_Left, QtCore.Qt.Key_Up, QtCore.Qt.Key_Down, QtCore.Qt.Key_PageUp, QtCore.Qt.Key_PageDown]
 
-    def updateNorm(self):
-        for l, sl in zip(self.normLines, [self.ui.normStartSlider, self.ui.normStopSlider]):