def __init__(self, *args):
scene = QGraphicsScene(args[0])
scene.setSceneRect(0,0,600.0,SCENE_HEIGHT)
QGraphicsView.__init__(self, scene, *args)
scene = self.scene()
self.yAxis = scene.addLine(PADDING, PADDING, PADDING, scene.height() - PADDING)
self.xAxis = scene.addLine(PADDING, scene.height() - PADDING, scene.width() - PADDING, scene.height() - PADDING)
self.bars = []
self.barLabels = []
self.xLabels = []
self.yLabels = []
self.values = []
self.show()
self.raise_()
class Canvas(QGraphicsView):
def __init__(self, window, resultDict, imagePath):
QGraphicsView.__init__(self)
self.window = window
self.pen = QPen(QColor("red"))
self.pen.setWidth(0.5)
self.canvasScene = QGraphicsScene()
self.setScene(self.canvasScene)
self.resultDict = resultDict
self.imagePath = imagePath
self.setBackgroundBrush(QBrush(Qt.black, Qt.SolidPattern))
def drawImage(self, imageFile):
"""Draw an image on the canvas"""
image = QPixmap(imageFile)
self.canvasScene.addPixmap(image)
return image
def drawFeaturePoint(self, pointList):
"""Draw a feature point on the canvas"""
radius = 0.5
width, height = 2, 2
x1, y1, x2, y2 = pointList
#Draw ellipse and bounding rect. Is a hacked version!
self.canvasScene.addEllipse(x1 - radius + 5, y1 - radius + 3, 2 * radius, 2 * radius, self.pen)
self.canvasScene.addEllipse(x2 - radius + self.imageWidth + 10, y2 - radius + 3, 2 * radius, 2 * radius, self.pen)
self.canvasScene.addRect(x1 - width / 2. + 5, y1 - height / 2. + 3, width, height, self.pen)
self.canvasScene.addRect(x2 - width / 2. + self.imageWidth + 10, y2 - height / 2. + 3, width, height, self.pen)
def drawFeatureImages(self, imageFile):
"""Draw two consecutive images on the screen"""
#Load image files
path, file_ = os.path.split(imageFile)
image1 = QPixmap(os.path.join(path, 'first_' + file_))
image2 = QPixmap(os.path.join(path, 'second_' + file_))
self.imageWidth = image1.width()
#Add pixmaps
image1Map = self.canvasScene.addPixmap(image1)
image2Map = self.canvasScene.addPixmap(image2)
#Shift pixmaps to the right position
image1Map.setOffset(QPointF(5, 3))
image2Map.setOffset(QPointF(10 + image1.width(), 3))
def drawPolygon(self, Polygon):
"""Draw a polygon on the canvas"""
polygon = QPolygonF()
for point in Polygon:
polygon.append(QPointF(point[0], point[1]))
self.canvasScene.addPolygon(polygon, self.pen)
def getWorkerId(self):
return self.resultDict.values()[self.index][0][0]
def getAssignmentId(self):
return self.resultDict.keys()[self.index]
def nextImage(self):
"""Load next image"""
self.index += 1
self.canvasScene.clear()
if self.index > len(self.resultDict) - 1 or len(self.resultDict) <= 0:
self.canvasScene.addText("No annotations to review")
self.window.reviewFlag = False
self.window.updateTable()
else:
#Draw Image and Polygon
assignmentId = self.resultDict.keys()[self.index]
result = self.resultDict[assignmentId]
image = result[0][1]
pointList = result[0][2]
if self.window.segmentation_mode:
pointList = [round(float(point), 3) for point in pointList]
pointList = zip(*[iter(pointList)] * 2)
self.drawImage(os.path.join(self.imagePath, image))
self.drawPolygon(pointList)
else:
pointList = [round(float(point), 3) for point in pointList]
pointList = zip(*[iter(pointList)] * 4)
self.drawFeatureImages(os.path.join(self.imagePath, image))
for point in pointList:
self.drawFeaturePoint(point)
#update scene
self.window.setWindowTitle("MTurk Review Tool ({0}/{1}) Rejected: {2} Approved: {3}".format(self.index + 1,
len(self.resultDict), len(self.window.rejected), len(self.window.approved)))
self.canvasScene.setSceneRect(self.canvasScene.itemsBoundingRect())
self.fitInView(0, 0, self.canvasScene.width(), self.canvasScene.height(), 1)
self.canvasScene.update(0, 0, self.canvasScene.width(), self.canvasScene.height())
