class ReviewView(QGraphicsView):
"""Simple extension of QGraphicsView
- containing an image and click-to-zoom/unzoom
"""
def __init__(self, fnames):
QGraphicsView.__init__(self)
self.initUI(fnames)
def initUI(self, fnames):
# Make QGraphicsScene
self.scene = QGraphicsScene()
# TODO = handle different image sizes.
self.images = {}
self.imageGItem = QGraphicsItemGroup()
self.scene.addItem(self.imageGItem)
self.updateImage(fnames)
self.setBackgroundBrush(QBrush(Qt.darkCyan))
def updateImage(self, fnames):
"""Update the image with that from filename"""
for n in self.images:
self.imageGItem.removeFromGroup(self.images[n])
self.images[n].setVisible(False)
if fnames is not None:
x = 0
n = 0
for fn in fnames:
self.images[n] = QGraphicsPixmapItem(QPixmap(fn))
self.images[n].setTransformationMode(Qt.SmoothTransformation)
self.images[n].setPos(x, 0)
self.images[n].setVisible(True)
self.scene.addItem(self.images[n])
x += self.images[n].boundingRect().width() + 10
self.imageGItem.addToGroup(self.images[n])
n += 1
# Set sensible sizes and put into the view, and fit view to the image.
br = self.imageGItem.boundingRect()
self.scene.setSceneRect(
0,
0,
max(1000, br.width()),
max(1000, br.height()),
)
self.setScene(self.scene)
self.fitInView(self.imageGItem, Qt.KeepAspectRatio)
def mouseReleaseEvent(self, event):
"""Left/right click to zoom in and out"""
if (event.button() == Qt.RightButton) or (
QGuiApplication.queryKeyboardModifiers() == Qt.ShiftModifier):
self.scale(0.8, 0.8)
else:
self.scale(1.25, 1.25)
self.centerOn(event.pos())
def resetView(self):
"""Reset the view to its reasonable initial state."""
self.fitInView(self.imageGItem, Qt.KeepAspectRatio)
class IDView(QGraphicsView):
"""Simple extension of QGraphicsView
- containing an image and click-to-zoom/unzoom
"""
def __init__(self, parent, fnames):
QGraphicsView.__init__(self)
self.parent = parent
self.initUI(fnames)
def initUI(self, fnames):
# Make QGraphicsScene
self.scene = QGraphicsScene()
# TODO = handle different image sizes.
self.images = {}
self.imageGItem = QGraphicsItemGroup()
self.scene.addItem(self.imageGItem)
self.updateImage(fnames)
self.setBackgroundBrush(QBrush(Qt.darkCyan))
self.parent.tool = "zoom"
self.boxFlag = False
self.originPos = QPointF(0, 0)
self.currentPos = self.originPos
self.boxItem = QGraphicsRectItem()
self.boxItem.setPen(QPen(Qt.darkCyan, 1))
self.boxItem.setBrush(QBrush(QColor(0, 255, 0, 64)))
def updateImage(self, fnames):
"""Update the image with that from filename"""
for n in self.images:
self.imageGItem.removeFromGroup(self.images[n])
self.images[n].setVisible(False)
if fnames is not None:
x = 0
n = 0
for fn in fnames:
self.images[n] = QGraphicsPixmapItem(QPixmap(fn))
self.images[n].setTransformationMode(Qt.SmoothTransformation)
self.images[n].setPos(x, 0)
self.images[n].setVisible(True)
self.scene.addItem(self.images[n])
x += self.images[n].boundingRect().width() + 10
self.imageGItem.addToGroup(self.images[n])
n += 1
# Set sensible sizes and put into the view, and fit view to the image.
br = self.imageGItem.boundingRect()
self.scene.setSceneRect(
0,
0,
max(1000, br.width()),
max(1000, br.height()),
)
self.setScene(self.scene)
self.fitInView(self.imageGItem, Qt.KeepAspectRatio)
def deleteRect(self):
if self.boxItem.scene() is None:
return
self.scene.removeItem(self.boxItem)
self.parent.rectangle = None
def mousePressEvent(self, event):
if self.parent.tool == "rect":
self.originPos = self.mapToScene(event.pos())
self.currentPos = self.originPos
self.boxItem.setRect(QRectF(self.originPos, self.currentPos))
if self.boxItem.scene() is None:
self.scene.addItem(self.boxItem)
self.boxFlag = True
else:
super(IDView, self).mousePressEvent(event)
def mouseMoveEvent(self, event):
if self.parent.tool == "rect" and self.boxFlag:
self.currentPos = self.mapToScene(event.pos())
if self.boxItem is None:
return
else:
self.boxItem.setRect(QRectF(self.originPos, self.currentPos))
else:
super(IDView, self).mousePressEvent(event)
def mouseReleaseEvent(self, event):
if self.boxFlag:
self.boxFlag = False
self.parent.rectangle = self.boxItem.rect()
self.parent.whichFile = self.parent.vTW.currentIndex()
return
"""Left/right click to zoom in and out"""
if (event.button() == Qt.RightButton) or (
QGuiApplication.queryKeyboardModifiers() == Qt.ShiftModifier):
self.scale(0.8, 0.8)
else:
self.scale(1.25, 1.25)
self.centerOn(event.pos())
def resetView(self):
"""Reset the view to its reasonable initial state."""
self.fitInView(self.imageGItem, Qt.KeepAspectRatio)
class ExamView(QGraphicsView):
"""Simple extension of QGraphicsView
- containing an image and click-to-zoom/unzoom
"""
def __init__(self, fnames):
QGraphicsView.__init__(self)
self.initUI(fnames)
def initUI(self, fnames):
# set background
self.setStyleSheet("background: transparent")
self.setBackgroundBrush(BackGrid())
self.setRenderHint(QPainter.Antialiasing, True)
self.setRenderHint(QPainter.SmoothPixmapTransform, True)
# Make QGraphicsScene
self.scene = QGraphicsScene()
# TODO = handle different image sizes.
self.images = {}
self.imageGItem = QGraphicsItemGroup()
self.scene.addItem(self.imageGItem)
self.updateImage(fnames)
def updateImage(self, fnames):
"""Update the image with that from filename"""
for n in self.images:
self.imageGItem.removeFromGroup(self.images[n])
self.images[n].setVisible(False)
if fnames is not None:
x = 0
for (n, fn) in enumerate(fnames):
pix = QPixmap(fn)
self.images[n] = QGraphicsPixmapItem(pix)
self.images[n].setTransformationMode(Qt.SmoothTransformation)
self.images[n].setPos(x, 0)
self.images[n].setVisible(True)
sf = float(ScenePixelHeight) / float(pix.height())
self.images[n].setScale(sf)
self.scene.addItem(self.images[n])
# x += self.images[n].boundingRect().width() + 10
# TODO: why did this have + 10 but the scene did not?
x += sf * (pix.width() - 1.0)
# TODO: don't floor here if units of scene are large!
x = int(x)
self.imageGItem.addToGroup(self.images[n])
# Set sensible sizes and put into the view, and fit view to the image.
br = self.imageGItem.boundingRect()
self.scene.setSceneRect(
0,
0,
max(1000, br.width()),
max(1000, br.height()),
)
self.setScene(self.scene)
self.fitInView(self.imageGItem, Qt.KeepAspectRatio)
def mouseReleaseEvent(self, event):
"""Left/right click to zoom in and out"""
if (event.button() == Qt.RightButton) or (
QGuiApplication.queryKeyboardModifiers() == Qt.ShiftModifier):
self.scale(0.8, 0.8)
else:
self.scale(1.25, 1.25)
self.centerOn(event.pos())
def resetView(self):
"""Reset the view to its reasonable initial state."""
self.fitInView(self.imageGItem, Qt.KeepAspectRatio)
