def __init__(self, scene, deleteItem):
super(CommandDelete, self).__init__()
self.scene = scene
self.deleteItem = deleteItem
self.setText("Delete")
# the delete animation object
self.do = DeleteObject(self.deleteItem.shape())
class CommandDelete(QUndoCommand):
# Deletes the graphicsitem. Have to be careful when it is
# a rubric-item - need to refresh score in parent-scene
# and be careful that is done once the item is actually deleted.
def __init__(self, scene, deleteItem):
super(CommandDelete, self).__init__()
self.scene = scene
self.deleteItem = deleteItem
self.setText("Delete")
# the delete animation object
self.do = DeleteObject(self.deleteItem.shape())
def redo(self):
# remove the object
self.scene.removeItem(self.deleteItem)
if isinstance(self.deleteItem, GroupDeltaTextItem):
self.scene.refreshStateAndScore()
## flash an animated box around the deleted object
self.scene.addItem(self.do.item)
self.do.flash_undo(
) # note - is undo animation since object being removed
QTimer.singleShot(200, lambda: self.scene.removeItem(self.do.item))
def undo(self):
## flash an animated box around the un-deleted object
self.scene.addItem(self.do.item)
self.do.flash_redo(
) # is redo animation since object being brought back
QTimer.singleShot(200, lambda: self.scene.removeItem(self.do.item))
# put the object back
self.scene.addItem(self.deleteItem)
# If the object is a GroupTextDeltaItem then refresh the state and score
if isinstance(self.deleteItem, GroupDeltaTextItem):
self.scene.refreshStateAndScore()
def __init__(self, scene, pt, text):
super().__init__(scene)
self.blurb = TextItem(pt,
text,
scene,
fontsize=scene.fontSize,
color=scene.style["annot_color"])
self.do = DeleteObject(self.blurb.shape(), fill=True)
self.setText("Text")
class CommandGroupDeltaText(CommandTool):
"""A group of delta and text.
Command to do a delta and a textitem together (a "rubric" or
"saved comment").
Note: must change mark
"""
def __init__(self, scene, pt, rid, kind, delta, text):
super().__init__(scene)
self.gdt = GroupDeltaTextItem(
pt,
delta,
text,
rid,
kind,
scene=scene,
style=scene.style,
fontsize=scene.fontSize,
)
self.do = DeleteObject(self.gdt.shape(), fill=True)
self.setText("GroupDeltaText")
@classmethod
def from_pickle(cls, X, *, scene):
"""Construct a CommandGroupDeltaText from a serialized GroupDeltaTextItem.
TODO: could this comandFoo.__init__() take a FooItem?
"""
assert X[0] == "GroupDeltaText"
X = X[1:]
if len(X) != 6:
raise ValueError("wrong length of pickle data")
# knows to latex it if needed.
return cls(scene, QPointF(X[0], X[1]), X[2], X[3], X[4], X[5])
def redo(self):
self.scene.addItem(self.gdt)
# animate
self.scene.addItem(self.do.item)
self.do.flash_redo()
QTimer.singleShot(200, lambda: self.scene.removeItem(self.do.item))
#
self.scene.refreshStateAndScore()
def undo(self):
self.scene.removeItem(self.gdt)
# animate
self.scene.addItem(self.do.item)
self.do.flash_undo()
QTimer.singleShot(200, lambda: self.scene.removeItem(self.do.item))
#
self.scene.refreshStateAndScore()
def __init__(self, scene, pt, rid, kind, delta, text):
super().__init__(scene)
self.gdt = GroupDeltaTextItem(
pt,
delta,
text,
rid,
kind,
scene=scene,
style=scene.style,
fontsize=scene.fontSize,
)
self.do = DeleteObject(self.gdt.shape(), fill=True)
self.setText("GroupDeltaText")
def __init__(self, scene, pti, ptf):
super().__init__(scene)
self.scene = scene
# A line from pti(nitial) to ptf(inal)
self.obj = LineItem(pti, ptf, scene.style)
self.do = DeleteObject(self.obj.shape())
self.setText("Line")
class CommandText(CommandTool):
def __init__(self, scene, pt, text):
super().__init__(scene)
self.blurb = TextItem(pt,
text,
scene,
fontsize=scene.fontSize,
color=scene.style["annot_color"])
self.do = DeleteObject(self.blurb.shape(), fill=True)
self.setText("Text")
@classmethod
def from_pickle(cls, X, *, scene):
"""Construct a CommandText from a serialized form."""
assert X[0] == "Text"
X = X[1:]
if len(X) != 3:
raise ValueError("wrong length of pickle data")
# knows to latex it if needed.
return cls(scene, QPointF(X[1], X[2]), X[0])
def redo(self):
self.scene.addItem(self.blurb)
# update the deleteobject since the text may have been updated
# use getshape - takes offset into account
self.do.item.setPath(self.blurb.getShape())
# animate
self.scene.addItem(self.do.item)
self.do.flash_redo()
QTimer.singleShot(200, lambda: self.scene.removeItem(self.do.item))
def undo(self):
self.scene.removeItem(self.blurb)
# update the deleteobject since the text may have been updated
# use getshape - takes offset into account
self.do.item.setPath(self.blurb.getShape())
# animate
self.scene.addItem(self.do.item)
self.do.flash_undo()
QTimer.singleShot(200, lambda: self.scene.removeItem(self.do.item))
def __init__(self, scene, pt, image, scale=1, border=True, data=None):
"""
Initialize a new Image command.
Args:
scene (PageScene): the scene the image is being inserted into.
pt (QPoint): the point of the top left corner of the image.
image (QImage): the image being added to the scene.
scale (float): the scaling value, <1 decreases size, >1 increases.
border (bool): True if the image has a border, false otherwise.
data (str): Base64 data held in a string if the image had
previously been json serialized.
"""
super().__init__(scene)
self.width = image.width()
if data is None:
toMidpoint = QPoint(-image.width() / 2, -image.height() / 2)
self.midPt = pt + toMidpoint
else:
self.midPt = pt
self.image = image
self.obj = ImageItem(self.midPt, self.image, scale, border, data)
self.do = DeleteObject(self.obj.shape())
self.setText("Image")
def __init__(self, scene, pt):
super().__init__(scene)
self.obj = QMarkItem(pt, scene.style)
self.do = DeleteObject(self.obj.shape())
self.setText("QMark")
def __init__(self, scene, rect):
super().__init__(scene)
self.obj = BoxItem(rect, scene.style)
self.do = DeleteObject(self.obj.shape(), fill=True)
self.setText("Box")
def __init__(self, scene, path):
super().__init__(scene)
self.obj = PenItem(path, scene.style)
self.do = DeleteObject(self.obj.shape())
self.setText("Pen")
def __init__(self, scene, path):
super().__init__(scene, path)
self.obj = HighlightItem(path, scene.style)
self.do = DeleteObject(self.obj.path)
self.setText("Highlight")