ParticlePainting Working, still bug in contour selection...

analysis/analysisview.py

@@ -113,11 +113,18 @@ class ParticleAnalysis(QtWidgets.QMainWindow):
         self.navigationGroup = QtWidgets.QGroupBox('Navigate through polymers')
         self.navigationGroup.setDisabled(True)
         navigationLayout = QtWidgets.QHBoxLayout()
+        self.specNumberSelector = QtWidgets.QSpinBox()
+        self.specNumberSelector.setMinimumWidth(150)
+        self.specNumberSelector.setMinimum(1)
+        self.specNumberSelector.setMaximum(1E6)
+        self.jumpToSpecBtn = QtWidgets.QPushButton('Jump To Spectrum of Number:')
+        self.jumpToSpecBtn.released.connect(self.jumpToSpectrumOfNumber)
+        
         self.typeSelectorCombo = QtWidgets.QComboBox()
         self.typeSelectorCombo.currentIndexChanged.connect(self.displayNewPolymerType)
         self.typeSelectorCombo.setMinimumWidth(150)
         self.particleSelector = QtWidgets.QSpinBox()
-        self.particleSelector.valueChanged.connect(self.updateToSelectedParticle)
+        self.particleSelector.valueChanged.connect(self.updateSpecPlotToSelectedParticle)
         self.particleNumberLabel = QtWidgets.QLabel('of xx particles; ')
         
         self.spectrumSelector = QtWidgets.QSpinBox()
@@ -128,6 +135,8 @@ class ParticleAnalysis(QtWidgets.QMainWindow):
             spinbox.setSingleStep(1)
             spinbox.setValue(1)
         
+        navigationLayout.addWidget(self.jumpToSpecBtn)
+        navigationLayout.addWidget(self.specNumberSelector)
         navigationLayout.addWidget(QtWidgets.QLabel('Select Polymer Type:'))
         navigationLayout.addWidget(self.typeSelectorCombo)
         navigationLayout.addStretch()
@@ -214,7 +223,7 @@ class ParticleAnalysis(QtWidgets.QMainWindow):
         self.updateDisplays()
         self.initializeSpecPlot()
         self.displayNewPolymerType()
-        self.updateToSelectedParticle()
+        self.updateSpecPlotToSelectedParticle()
 #        self.createPolymerOverlay()
     
     def createActions(self):
@@ -390,16 +399,16 @@ class ParticleAnalysis(QtWidgets.QMainWindow):
         self.createHistogramData()
         t0 = time.time()
         self.updateTypeHistogram()
-        print('update type hist:', round((time.time()-t0)*1000))
+        print('update type hist: {} ms'.format(round((time.time()-t0)*1000)))
         t0 = time.time()
         self.updateSizeHistogram()
-        print('update size hist:', round((time.time()-t0)*1000))
+        print('update size hist: {} ms'.format(round((time.time()-t0)*1000)))
         t0 = time.time()
         self.updateContourColors()
-        print('update contours:', round((time.time()-t0)*1000))
+        print('update contours: {} ms'.format(round((time.time()-t0)*1000)))
         t0 = time.time()
         self.updateLegend()
-        print('update legend:', round((time.time()-t0)*1000))
+        print('update legend: {} ms'.format(round((time.time()-t0)*1000)))
         self.dataset.save()
     
     def initializeSpecPlot(self):
@@ -474,7 +483,7 @@ class ParticleAnalysis(QtWidgets.QMainWindow):
     
     def updateContourColors(self):
         contours = self.parent.contourItems
-        alpha = (128 if self.transpAct.isChecked() else 255)
+        alpha = (64 if self.transpAct.isChecked() else 255)
         selectedPolymers = self.getSelectedPolymers()
 
         for particleIndex, contour in enumerate(contours):
@@ -501,10 +510,22 @@ class ParticleAnalysis(QtWidgets.QMainWindow):
                         
     def getSelectedPolymers(self):
         return [checkbox.text() for checkbox in self.polymerCheckBoxes if checkbox.isChecked()]
+    
+    def jumpToSpectrumOfNumber(self):
+        specIndex = self.specNumberSelector.value()-1
+        assert specIndex is not None
+        partIndex = self.particleContainer.getParticleIndexContainingSpecIndex(specIndex)
+        assignment = self.particleContainer.getParticleAssignmentByIndex(partIndex)
+        self.typeSelectorCombo.setCurrentText(assignment)
         
-    #TODO: Connect to widget that allows jumping to particular particle
-    def selectParticleIndex(self, particleIndex, centerOn=True):
-        self.typeSelectorCombo.currentIndexChanged.disconnect()
+        partIndices = self.particleContainer.getIndicesOfParticleType(assignment)
+        self.particleSelector.setValue(partIndices.index(partIndex)+1)
+        
+        specIndices = self.particleContainer.getSpectraIndicesOfParticle(partIndex)
+        self.spectrumSelector.setValue(specIndices.index(specIndex)+1)
+
+
+    def selectParticleOfIndex(self, particleIndex, centerOn=True):
         assignment = self.particleContainer.getParticleAssignmentByIndex(particleIndex)
         self.typeSelectorCombo.setCurrentText(assignment)
         self.typeSelectorCombo.currentIndexChanged.connect(self.displayNewPolymerType)
@@ -512,9 +533,9 @@ class ParticleAnalysis(QtWidgets.QMainWindow):
         self.particleSelector.valueChanged.disconnect()
         particleIndices = self.particleContainer.getIndicesOfParticleType(assignment)
         self.particleSelector.setValue(particleIndices.index(particleIndex)+1)
-        self.particleSelector.valueChanged.connect(self.updateToSelectedParticle)
+        self.particleSelector.valueChanged.connect(self.updateSpecPlotToSelectedParticle)
         
-        self.updateToSelectedParticle(resetSpectrumCount=True, centerOn=centerOn)
+        self.updateSpecPlotToSelectedParticle(resetSpectrumCount=True, centerOn=centerOn)
         
     def displayNewPolymerType(self, resetCurrentIndex=True):
         polymerName = self.typeSelectorCombo.currentText()
@@ -532,7 +553,7 @@ class ParticleAnalysis(QtWidgets.QMainWindow):
         self.currentSpectrumIndex = self.getSpectrumIndexFromSpectrumSelector()
         self.updateSpecPlot(centerOn=False)
     
-    def updateToSelectedParticle(self, resetSpectrumCount=True, centerOn=True):
+    def updateSpecPlotToSelectedParticle(self, resetSpectrumCount=True, centerOn=True):
         polymerName = self.typeSelectorCombo.currentText()
         if polymerName != '':
             self.currentParticleIndex = self.getParticleIndexFromParticleSelector()

analysis/particleInfo.py

@@ -115,7 +115,12 @@ class ParticleContainer(object):
         particle = self.particles[index]
         assert particle.index == index, f'particle.index ({particle.index}) does match requested index in particleList ({index})' 
         return particle
-            
+    
+    def getParticleIndexContainingSpecIndex(self, index):
+        for particle in self.particles:
+            if index in particle.getMeasurementIndices():
+                return particle.index
+    
     def getNumberOfParticles(self):
         return len(self.particles)
     

analysis/particlePainter.py

@@ -21,54 +21,146 @@ If not, see <https://www.gnu.org/licenses/>.
 """
 from PyQt5 import QtWidgets, QtCore, QtGui
 import numpy as np
+import cv2
+
 
 class ParticlePainter(QtWidgets.QGraphicsItem):
-    def __init__(self, particleContour, pos=(0,0)):
-        super().__init__()
-        self.setZValue(1)
-        self.setPos(pos[0], pos[1])
-        
-        self.polygon = None
-        self.particleContour = particleContour
+    def __init__(self, editorParent, contours, pos=(500,500)):
+        super(ParticlePainter, self).__init__()
+        self.editorParent = editorParent
+        self.viewparent = self.editorParent.viewparent
+        self.setZValue(5)
+        self.polygons = None
+        self.contours = contours
         self.mousePos = None
-        self.minRadius = 1
+        self.minRadius = 10
         self.maxRadius = 500
-        self.radius = 20
+        self.radius = 50
         self.brect = QtCore.QRectF(0,0,1,1)
-#        self.getBrectAndPolygon()
-        
-#    def getBrectAndPolygon(self):
-#        polygon = QtGui.QPolygonF()
-#        x0 = self.particleContour[:,0,0].min()
-#        x1 = self.particleContour[:,0,0].max()
-#        y0 = self.particleContour[:,0,1].min()
-#        y1 = self.particleContour[:,0,1].max()
-#        for point in self.particleContour:
-#            polygon.append(QtCore.QPointF(point[0,0], point[0,1]))
+        self.getBrectAndPolygon()
+        self.painting = False
+        self.erasing = False
         
-#        self.brect.setCoords(x0, y0, x1, y1)
-#        self.polygon = polygon
+    def getBrectAndPolygon(self):
+        polygons = []
+        x0 = None
+        for c in self.contours:
+            polygon = QtGui.QPolygonF()
+            if x0 is None:
+                x0 = c[:,0,0].min()
+                x1 = c[:,0,0].max()
+                y0 = c[:,0,1].min()
+                y1 = c[:,0,1].max()
+            else:
+                x0 = min(x0, c[:,0,0].min())
+                x1 = max(x1, c[:,0,0].max())
+                y0 = min(y0, c[:,0,1].min())
+                y1 = max(y1, c[:,0,1].max())
+            for ci in c:
+                polygon.append(QtCore.QPointF(ci[0,0],ci[0,1]))
+            polygons.append(polygon)
+        if x0 is None:
+            self.brect = QtCore.QRectF(0,0,1,1)
+        else:
+            self.brect.setCoords(x0,y0,x1,y1)
+        self.polygons = polygons        
     
     def boundingRect(self):
         return self.brect
     
+    def mousePressEvent(self, event):
+        self.mousePos = self.viewparent.mapToScene(event.pos())
+        self.erasing = self.painting = False
+        if event.modifiers()==QtCore.Qt.ControlModifier:
+            self.painting = True
+        elif event.modifiers()==QtCore.Qt.ShiftModifier:
+            self.erasing = True
+            
+        if self.painting or self.erasing:
+            drawPos = self.viewparent.mapToScene(event.pos()) - self.brect.topLeft()
+            self.drawParticle(drawPos)
+            
     def mouseMoveEvent(self, event):
-        p = event.pos()
-        self.brect.setCoords(p.x()-self.radius/2, p.y()-self.radius/2, p.x()+self.radius/2, p.y()+self.radius/2)
-        self.mousePos = p
-    
+        self.mousePos = self.viewparent.mapToScene(event.pos())
+        self.update()
+        if self.painting or self.erasing:
+            drawPos = self.viewparent.mapToScene(event.pos()) - self.brect.topLeft()
+            self.drawParticle(drawPos)
+        
     def wheelEvent(self, event):
-        if event.angleDelta().y() > 0:
-            self.radius = np.clip(self.radius+1, self.minRadius, self.maxRadius)
+        if event.angleDelta().y() < 0:
+            self.radius = int(np.clip(self.radius+self.radius*0.1, self.minRadius, self.maxRadius))
+        else:
+            self.radius = int(np.clip(self.radius-self.radius*0.1, self.minRadius, self.maxRadius))
+            
+        self.update()
+        
+    def mouseReleaseEvent(self, event):
+        self.erasing = self.painting = False
+            
+    def keyPressEvent(self, event):
+        if event.key() == QtCore.Qt.Key_Escape:
+            self.editorParent.destroyParticlePainter()
+        elif event.key() == QtCore.Qt.Key_Return:
+            self.editorParent.acceptPaintedResult()
+    
+    def drawParticle(self, pos):
+        img, xmin, ymin, padding = self.contoursToImg(self.contours)
+        center = (int(pos.x()+self.radius), int(pos.y()+self.radius))
+        if self.painting:
+            cv2.circle(img, center, self.radius, 255, -1)
+        elif self.erasing:
+            cv2.circle(img, center, self.radius, 0, -1)
+            
+        img = np.uint8(img)
+        self.contours = self.imgToCnt(img, xmin, ymin, padding)
+        self.getBrectAndPolygon()
+        self.update()
+    
+    def contoursToImg(self, contours):
+        cnt = np.vstack(tuple(contours))  #combine contous
+        #draw contours
+        xmin, xmax = cnt[:,0,:][:, 0].min(), cnt[:,0,:][:, 0].max()
+        ymin, ymax = cnt[:,0,:][:, 1].min(), cnt[:,0,:][:, 1].max()        
+        padding = self.radius+2    #pixel in each direction
+        rangex = int(np.round((xmax-xmin)+2*padding))
+        rangey = int(np.round((ymax-ymin)+2*padding))
+
+        img = np.zeros((rangey, rangex), dtype = np.uint8)
+        for curCnt in contours:
+            for i in range(len(curCnt)):
+                curCnt[i][0][0] -= xmin-padding
+                curCnt[i][0][1] -= ymin-padding
+                
+            cv2.drawContours(img, [curCnt], -1, 255, -1)
+            cv2.drawContours(img, [curCnt], -1, 255, 1)
+        return img, xmin, ymin, padding
+    
+    def imgToCnt(self, img, xmin, ymin, padding):
+        if cv2.__version__ > '3.5':
+            contours, hierarchy = cv2.findContours(img, cv2.RETR_CCOMP, cv2.CHAIN_APPROX_NONE)
         else:
-            self.radius = np.clip(self.radius-1, self.minRadius, self.maxRadius)
+            temp, contours, hierarchy = cv2.findContours(img, cv2.RETR_CCOMP, cv2.CHAIN_APPROX_NONE)
 
-    def paint(self, painter, option, widget):       
+        for contour in contours:
+            for i in range(len(contour)):
+                contour[i][0][0] += xmin-padding
+                contour[i][0][1] += ymin-padding
+            
+        return contours
+    
+    def paint(self, painter, option, widget):   
+        painter.setPen(QtCore.Qt.white)
+        painter.drawRect(self.brect)
+        
         if self.mousePos is not None:
             p = [self.mousePos.x(), self.mousePos.y(), self.radius]
             painter.drawEllipse(p[0]-p[2], p[1]-p[2], 2*p[2], 2*p[2])            
             
-#        if self.polygon is not None:
-#            painter.setPen(QtCore.Qt.white)
-#            painter.setBrush(QtGui.QColor(200, 200, 200, 128))
-#            painter.drawPolygon(self.polygon)
\ No newline at end of file
+        if self.polygons is not None:            
+            for poly in self.polygons:
+                painter.setBrush(QtGui.QColor(200, 200, 255, 128))
+                painter.drawPolygon(poly)
+                
+                
+    
\ No newline at end of file

analysis/particleeditor.py

@@ -29,9 +29,12 @@ import numpy as np
 import cv2
 from PyQt5 import QtWidgets, QtCore
 
+from analysis.particlePainter import ParticlePainter
+
 class ParticleContextMenu(QtWidgets.QMenu):
     combineParticlesSignal = QtCore.pyqtSignal(list, str)
     reassignParticlesSignal = QtCore.pyqtSignal(list, str)
+    paintParticlesSignal = QtCore.pyqtSignal(list, str)
     def __init__(self, viewparent):
         super(ParticleContextMenu, self).__init__()
         self.viewparent = viewparent
@@ -41,18 +44,25 @@ class ParticleContextMenu(QtWidgets.QMenu):
     def executeAtScreenPos(self, screenPos):
         self.combineActs = []
         self.combineMenu = QtWidgets.QMenu("Combine Particles into")
-        assignments = []
+
+        self.paintActs = []
+        self.paintMenu = QtWidgets.QMenu("Paint Mode, merge into")
+
+        selctedAssignments = []
 
         for particleIndex in self.selectedParticleIndices:
             try:
                 assignment = self.particleContainer.getParticleAssignmentByIndex(particleIndex)
             except:
                 return
-            assignments.append(assignment)
+            selctedAssignments.append(assignment)
         
-        for assignment in np.unique(assignments):
+        for assignment in np.unique(selctedAssignments):
             self.combineActs.append(self.combineMenu.addAction(assignment))
+            self.paintActs.append(self.paintMenu.addAction(assignment))
         self.combineActs.append(self.combineMenu.addAction("other"))
+        self.paintActs.append(self.paintMenu.addAction("other"))
+        
         
         self.reassignActs = []
         self.reassignMenu = QtWidgets.QMenu("Reassign particle(s) into")
@@ -69,15 +79,19 @@ class ParticleContextMenu(QtWidgets.QMenu):
             
         self.addMenu(self.combineMenu)        
         self.addMenu(self.reassignMenu)
+        self.addMenu(self.paintMenu)
         
         action = self.exec_(screenPos)
 
-        if action in self.combineActs:
-            newAssignment = self.validifyAssignment(action.text())
-            self.combineParticlesSignal.emit(self.selectedParticleIndices, newAssignment)
-        elif action in self.reassignActs:
+        if action:
             newAssignment = self.validifyAssignment(action.text())
-            self.reassignParticlesSignal.emit(self.selectedParticleIndices, newAssignment)
+
+            if action in self.combineActs:
+                self.combineParticlesSignal.emit(self.selectedParticleIndices, newAssignment)
+            elif action in self.reassignActs:
+                self.reassignParticlesSignal.emit(self.selectedParticleIndices, newAssignment)
+            elif action in self.paintActs:
+                self.paintParticlesSignal.emit(self.selectedParticleIndices, newAssignment)
     
     def validifyAssignment(self, assignment):
         if assignment == "other":
@@ -85,7 +99,7 @@ class ParticleContextMenu(QtWidgets.QMenu):
         return assignment
     
     def getNewEntry(self):
-        text, okClicked = QtWidgets.QInputDialog.getText(QtWidgets.QWidget(), "Custom assignment", "Enter new assignment")
+        text, okClicked = QtWidgets.QInputDialog.getText(self.viewparent, "Custom assignment", "Enter new assignment")
         if okClicked and text != '':
             return text
 
@@ -93,22 +107,26 @@ class ParticleContextMenu(QtWidgets.QMenu):
 class ParticleEditor(QtCore.QObject):
     particleContoursChanged = QtCore.pyqtSignal()
     particleAssignmentChanged = QtCore.pyqtSignal()
-    def __init__(self, analysisparent, particleContainer):
+    def __init__(self, viewparent, particleContainer):
         super(ParticleEditor, self).__init__()
         self.particleContainer = particleContainer
-        self.analysisparent = analysisparent #the assigned analysis widget
+        self.viewparent = viewparent #the assigned analysis widget
         self.backupFreq = 3     #save a backup every n actions
         self.neverBackedUp = True
         self.actionCounter = 0
+        
+        self.storedIndices = []
+        self.storedAssignmend = None
     
     def connectToSignals(self, contextMenu):
         contextMenu.combineParticlesSignal.connect(self.combineParticles)
         contextMenu.reassignParticlesSignal.connect(self.reassignParticles)
+        contextMenu.paintParticlesSignal.connect(self.paintParticles)
     
     def createSafetyBackup(self):
         self.actionCounter += 1
         if self.actionCounter == self.backupFreq-1 or self.neverBackedUp:            
-            backupname = self.analysisparent.dataset.saveBackup()
+            backupname = self.viewparent.dataset.saveBackup()
             print('backing up as', backupname)
             self.neverBackedUp = False
             self.actionCounter = 0        
@@ -122,14 +140,13 @@ class ParticleEditor(QtCore.QObject):
         stats = self.characterizeParticle(newContour)
 
         self.particleContainer.mergeParticles(contourIndices, newContour, stats, newAssignment=newAssignment)
-        self.particleContoursChanged.emit()
-#        #save data
-#        minHQI = self.parent.hqiSpinBox.value()
-#        compHQI = self.parent.compHqiSpinBox.value()
-#        if not self.datastats.saveAnalysisResults(minHQI, compHQI):
-#            QtWidgets.QMessageBox.warning(self.parent, 'Error!',
-#                    'Data inconsistency after saving!', QtWidgets.QMessageBox.Ok, 
-#                    QtWidgets.QMessageBox.Ok)
+        for ind in contourIndices:
+            self.viewparent.removeParticleContour(ind)
+        
+        self.viewparent.resetContourIndices()
+        self.viewparent.addParticleContour(newContour, len(self.viewparent.contourItems))
+        
+        #TODO: INCLUDE SANITY CHECK!!!!!!!!!
     
     @QtCore.pyqtSlot(list, str)
     def reassignParticles(self, contourindices, newAssignment):
@@ -139,6 +156,41 @@ class ParticleEditor(QtCore.QObject):
             self.particleContainer.reassignParticleToAssignment(partIndex, newAssignment)
 
         self.particleAssignmentChanged.emit()
+     
+    @QtCore.pyqtSlot(list, str)
+    def paintParticles(self, contourIndices, newAssignment):
+        self.createSafetyBackup
+        self.storedIndices = contourIndices
+        self.storedAssignmend = newAssignment
+        contours = self.particleContainer.getParticleContoursByIndex(contourIndices)
+        self.particlePainter = ParticlePainter(self, contours)
+        self.viewparent.normalSize()
+        self.viewparent.particlePainter = self.particlePainter
+        self.viewparent.scene().addItem(self.particlePainter)
+        self.viewparent.update()
+        
+    def acceptPaintedResult(self):
+        newContour = self.mergeContours(self.particlePainter.contours.copy())
+        stats = self.characterizeParticle(newContour)
+        
+        self.particleContainer.mergeParticles(self.storedIndices, newContour, stats, newAssignment=self.storedAssignmend)
+        for ind in self.storedIndices:
+            self.viewparent.removeParticleContour(ind)
+        
+        self.viewparent.resetContourIndices()
+        self.viewparent.addParticleContour(newContour, len(self.viewparent.contourItems))
+        
+        #TODO: INCLUDE SANITY CHECK!!!!!!!!!
+        self.storedIndices = []
+        self.storedAssignmend = None
+        self.destroyParticlePainter()
+    
+    def destroyParticlePainter(self):
+        if self.particlePainter is not None:
+            self.viewparent.particlePainter = None
+            self.viewparent.scene().removeItem(self.particlePainter)
+            self.viewparent.update()
+            self.particlePainter = None
     
     def mergeContours(self, contours):
         cnt = np.vstack(tuple(contours))  #combine contous
@@ -177,7 +229,6 @@ class ParticleEditor(QtCore.QObject):
             
         return newContour
         
-        
     def characterizeParticle(self, contours):
         ##characterize particle
         longellipse, shortellipse = np.nan, np.nan

sampleview.py

@@ -38,8 +38,6 @@ from helperfunctions import polygoncovering, cv2imread_fix
 from ramancom.configRaman import RamanConfigWin
 from analysis.particleeditor import ParticleEditor
 
-from analysis.particlePainter import ParticlePainter
-
 
 class SampleView(QtWidgets.QGraphicsView):
     ScalingChanged = QtCore.pyqtSignal(float)
@@ -62,7 +60,6 @@ class SampleView(QtWidgets.QGraphicsView):
         self.setRenderHint(QtGui.QPainter.Antialiasing)
         self.setTransformationAnchor(QtWidgets.QGraphicsView.AnchorUnderMouse)
         self.setResizeAnchor(QtWidgets.QGraphicsView.AnchorViewCenter)
-        self.disableSelection = False
         
         self.ramanctrl = RamanControl()
         self.simulatedRaman = simulatedRaman        
@@ -89,6 +86,7 @@ class SampleView(QtWidgets.QGraphicsView):
         self.isblocked = False
         self.contourItems = []
         self.selectedParticleIndices = []
+        self.particlePainter = None
         
         self.detectionwidget = None
         self.ramanwidget = RamanScanUI(self.ramanctrl, None, self.logpath, self)
@@ -101,8 +99,7 @@ class SampleView(QtWidgets.QGraphicsView):
         self.darkenPixmap = False
         self.microscopeMode = None
         
-        self.painter = ParticlePainter([])
-        self.scene().addItem(self.painter)
+        self.update()
         
         
     def takeScreenshot(self):
@@ -216,7 +213,6 @@ class SampleView(QtWidgets.QGraphicsView):
                 print('show maximized already exisiting analysiswidget')
                 self.analysiswidget.showMaximized()
             
-#            self.ramanwidget.setVisible(False)
             if self.detectionwidget is not None:
                 self.detectionwidget.setVisible(False)
             
@@ -321,40 +317,28 @@ class SampleView(QtWidgets.QGraphicsView):
         return maxmode
 
     def mousePressEvent(self, event):
-        if not self.disableSelection:
-            if event.button()==QtCore.Qt.MiddleButton:
-                self.drag = event.pos()
-            elif event.button()==QtCore.Qt.LeftButton:
+        if event.button()==QtCore.Qt.MiddleButton:
+            self.drag = event.pos()
+        
+        elif self.particlePainter is None:
+            if event.button()==QtCore.Qt.LeftButton:
                 self.checkForContourSelection(event)
-                event.ignore()
-            elif event.button()==QtCore.Qt.LeftButton and self.mode in ["OpticalScan", "RamanScan"] \
-                 and event.modifiers()==QtCore.Qt.ControlModifier:
-                p0 = self.mapToScene(event.pos())
-                if self.dataset is not None and self.dataset.pshift is not None:
-                    if self.dataset.readin:
-                        reply = QtWidgets.QMessageBox.critical(self, 'Dataset is newly read from disk!',
-                            "Coordinate systems might have changed since. Do you want to continue with saved coordinates?", 
-                            QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No, QtWidgets.QMessageBox.No)
                 
-                        if reply == QtWidgets.QMessageBox.Yes:
-                            self.dataset.readin = False
-                        else:
-                            return
-    #                x, y, z = self.dataset.mapToLengthRaman([p0.x(), p0.y()], 
-    #                                                         microscopeMode=self.microscopeMode,
-    #                                                         noz=(False if self.mode=="RamanScan" else True))
-                    x, y, z = self.dataset.mapToLengthRaman([p0.x(), p0.y()], microscopeMode=self.microscopeMode, noz=False)
-                    if z is not None:
-                        assert z>-100.
-                    self.ramanctrl.moveToAbsolutePosition(x, y, z)
-            elif event.button()==QtCore.Qt.LeftButton and self.mode=="ParticleDetection":
-                p0 = self.mapToScene(event.pos())
-                self.detectionwidget.setImageCenter([p0.x(), p0.y()])
+                if self.mode in ["OpticalScan", "RamanScan"] and event.modifiers()==QtCore.Qt.ControlModifier:
+                    p0 = self.mapToScene(event.pos())
+                    self.moveStageToPosition(p0)
+                    
+                elif self.mode=="ParticleDetection":
+                    p0 = self.mapToScene(event.pos())
+                    self.detectionwidget.setImageCenter([p0.x(), p0.y()])
             
             else:
                 p0 = self.mapToScene(event.pos())
                 super(SampleView, self).mousePressEvent(event)
-            
+        
+        elif self.particlePainter is not None:
+            self.particlePainter.mousePressEvent(event)
+
     def mouseMoveEvent(self, event):
         if self.drag is not None:
             p0 = event.pos()
@@ -363,17 +347,50 @@ class SampleView(QtWidgets.QGraphicsView):
             self.verticalScrollBar().setValue(move.y() + self.verticalScrollBar().value())
             
             self.drag = p0
-        else:
+        elif self.particlePainter is None:
+            p0 = self.mapToScene(event.pos())
             super(SampleView, self).mouseMoveEvent(event)
+        else:
+            self.particlePainter.mouseMoveEvent(event)
                         
     def mouseReleaseEvent(self, event):
         self.drag = None
-        super(SampleView, self).mouseReleaseEvent(event)
+        if self.particlePainter is None:
+            super(SampleView, self).mouseReleaseEvent(event)
+        else: