def cursorForEffect(self, effectName): """Return an instance of QCursor customized for the given effectName. TODO: this could be moved to the EffectTool class so that effects can manage per-widget cursors, possibly turning them off or making them dynamic """ if not effectName in self.effectCursors: baseImage = qt.QImage(":/Icons/AnnotationPointWithArrow.png") effectImage = qt.QImage(self.effectIconFiles[effectName]) width = max(baseImage.width(), effectImage.width()) pad = -9 height = pad + baseImage.height() + effectImage.height() width = height = max(width, height) center = int(width / 2) cursorImage = qt.QImage(width, height, qt.QImage().Format_ARGB32) painter = qt.QPainter() cursorImage.fill(0) painter.begin(cursorImage) point = qt.QPoint(center - (baseImage.width() / 2), 0) painter.drawImage(point, baseImage) point.setX(center - (effectImage.width() / 2)) point.setY(cursorImage.height() - effectImage.height()) painter.drawImage(point, effectImage) painter.end() cursorPixmap = qt.QPixmap() cursorPixmap = cursorPixmap.fromImage(cursorImage) self.effectCursors[effectName] = qt.QCursor( cursorPixmap, center, 0) return self.effectCursors[effectName]
def __init__(self, parent=None, width=400, height=400, showWidget=False, scale=False): super(LayerReveal, self).__init__() self.width = width self.height = height self.showWidget = showWidget self.scale = scale self.renderer = None # utility Qt instances for use in methods self.gray = qt.QColor() self.gray.setRedF(0.5) self.gray.setGreenF(0.5) self.gray.setBlueF(0.5) # a painter to use for various jobs self.painter = qt.QPainter() # make a qwidget display if self.showWidget: self.frame = qt.QFrame(parent) mw = slicer.util.mainWindow() self.frame.setGeometry(mw.x, mw.y, self.width, self.height) self.frameLayout = qt.QVBoxLayout(self.frame) self.label = qt.QLabel() self.frameLayout.addWidget(self.label) self.frame.show() # make an image actor in the slice view self.vtkImage = vtk.vtkImageData() self.mrmlUtils = slicer.qMRMLUtils() self.imageMapper = vtk.vtkImageMapper() self.imageMapper.SetColorLevel(128) self.imageMapper.SetColorWindow(255) if vtk.VTK_MAJOR_VERSION <= 5: self.imageMapper.SetInput(self.vtkImage) else: self.imageMapper.SetInputData(self.vtkImage) self.actor2D = vtk.vtkActor2D() self.actor2D.SetMapper(self.imageMapper)
def paintEvent(self, e): qp = qt.QPainter() qp.begin(self) self.drawLines(qp) qp.end()
def __init__(self,parent=None,width=400,height=400,showWidget=False,scale=False): super(ROIManager,self).__init__() self.width = width self.height = height self.showWidget = showWidget self.scale = scale self.renderer = None self.ROIRadius = 20.0 self.minValueBG=0 self.maxValueBG=0 self.minValueFG=0 self.maxValueFG=0 self.probeWidget = None self.drawOverlay = 0 # utility Qt instances for use in methods self.gray = qt.QColor() self.gray.setRedF(0.5) self.gray.setGreenF(0.5) self.gray.setBlueF(0.5) # a painter to use for various jobs self.painter = qt.QPainter() # make a qwidget display if self.showWidget: self.frame = qt.QFrame(parent) mw = slicer.util.mainWindow() self.frame.setGeometry(mw.x, mw.y, self.width, self.height) self.frameLayout = qt.QVBoxLayout(self.frame) self.label = qt.QLabel() self.frameLayout.addWidget(self.label) self.frame.show() # make an image actor in the slice view self.vtkImage = vtk.vtkImageData() self.mrmlUtils = slicer.qMRMLUtils() self.imageMapper = vtk.vtkImageMapper() self.imageMapper.SetColorLevel(128) self.imageMapper.SetColorWindow(255) if vtk.VTK_MAJOR_VERSION <= 5: self.imageMapper.SetInput(self.vtkImage) else: self.imageMapper.SetInputData(self.vtkImage) self.actor2D = vtk.vtkActor2D() self.actor2D.SetMapper(self.imageMapper) # make a circle actor self.circle = vtk.vtkRegularPolygonSource() self.circle.SetNumberOfSides(50) self.circle.SetRadius(5) self.circle.SetCenter(0,0,0) self.circle.GeneratePolylineOn() self.circle.GeneratePolygonOff() self.circle.Update() self.mapper = vtk.vtkPolyDataMapper2D() self.actor = vtk.vtkActor2D() if vtk.VTK_MAJOR_VERSION <= 5: self.mapper.SetInput(self.circle.GetOutput()) else: self.mapper.SetInputConnection(self.circle.GetOutputPort()) self.actor.SetMapper(self.mapper) property_ = self.actor.GetProperty() property_.SetColor(1,1,0) property_.SetLineWidth(1)