def add(self, value, multiplier):
"""Add a value to the currently stored integer.
Args:
value: The integer value to add.
multiplier: Integer to multiply value with.
"""
value = get_int(value, allow_sign=True)
multiplier = get_int(multiplier, allow_sign=False)
self._value += value * multiplier
def override(self, new_value):
"""Override the setting with a new geometry.
Args:
new_value: String in the form of "WIDTHxHEIGHT" for the new value.
"""
geometry = new_value.split("x")
if len(geometry) != 2:
error = "Geometry must be of the form WIDTHxHEIGHT"
raise StringConversionError(error)
self._value = (get_int(geometry[0]), get_int(geometry[1]))
def flip(self, horizontal):
"""Flip the displayed image and call thread to flip files.
Args:
horizontal: If True, flip horizontally. Else vertically.
"""
try:
self._is_transformable()
horizontal = get_int(horizontal)
except NotTransformable as e:
self._app["statusbar"].message(str(e) + " flip", "error")
return
except StringConversionError as e:
self._app["statusbar"].message(str(e), "error")
return
images = self.get_images("Flipped")
# Apply changes
for fil in images:
if fil not in self._changes:
self._changes[fil] = [0, 0, 0]
if horizontal:
self._changes[fil][1] = \
(self._changes[fil][1] + 1) % 2
else:
self._changes[fil][2] = \
(self._changes[fil][2] + 1) % 2
# Flip the image shown
if self._app.get_path() in images:
self.emit("changed", "flip", horizontal)
# Reload thumbnails of flipped images immediately
if self._app["thumbnail"].toggled:
self.apply()
def rotate(self, cwise):
"""Rotate the displayed image and call thread to rotate files.
Args:
cwise: Rotate image 90 * cwise degrees.
"""
try:
self._is_transformable()
cwise = get_int(cwise, allow_sign=True)
except NotTransformable as e:
self._app["statusbar"].message(str(e) + " rotate", "error")
return
except StringConversionError as e:
self._app["statusbar"].message(str(e), "error")
return
images = self.get_images("Rotated")
cwise = cwise % 4
# Update properties
for fil in images:
if fil in self._changes:
self._changes[fil][0] = \
(self._changes[fil][0] + cwise) % 4
else:
self._changes[fil] = [cwise, 0, 0]
# Rotate the image shown
if self._app.get_path() in images:
self.emit("changed", "rotate", cwise)
# Reload thumbnails of rotated images immediately
if self._app["thumbnail"].toggled:
self.apply()
def override(self, new_value):
"""Override the setting with a new thumbnail size.
Args:
new_value: String in the form of "(val, val)" for the new value.
"""
new_value = new_value.lstrip("(").rstrip(")")
int_tuple = new_value.split(",")
if len(int_tuple) != 2:
error = "Tuple must be of the form (val, val)"
raise StringConversionError(error)
int_tuple = (get_int(int_tuple[0]), get_int(int_tuple[1]))
if int_tuple[0] != int_tuple[1]:
error = "Thumbnail width and height must be equal"
raise StringConversionError(error)
if int_tuple[0] not in [64, 128, 256, 512]:
error = "Thumbnail size must be one of 64, 128, 256 and 512"
raise StringConversionError(error)
self._value = tuple(int_tuple)
def num_receive(self, number=1, to_float=False):
"""Receive self._num_str and clear it.
Args:
number: Number to return if self._num_str is empty.
to_float: If True, convert num_str to float. Else to int.
Return:
The received number or default.
"""
if self._num_str:
number = get_float(self._num_str) \
if to_float else get_int(self._num_str)
self.num_clear()
return number
def change_slider(self, step="1"):
"""Change the value of the currently focused slider.
Args:
step: Step to edit the slider by.
"""
try:
step = get_int(step, allow_sign=True)
except StringConversionError as e:
self._app["statusbar"].message(str(e), "error")
return
for slider in self.sliders.values():
if slider.is_focus():
val = slider.get_value()
step = self._app["eventhandler"].num_receive() * step
val += step
slider.set_value(val)
def override(self, new_value):
self._value = get_int(new_value)