def _calc_limits(union_size, screen_size, fitmode, allow_upscaling):
""" Returns a list or a tuple with the i-th element set to int x if
fitmode limits the size at the i-th axis to x, or None if fitmode has no
preference for this axis. """
manual = fitmode == constants.ZOOM_MODE_MANUAL
if fitmode == constants.ZOOM_MODE_BEST or \
(manual and allow_upscaling and all(tools.smaller(union_size, screen_size))):
return screen_size
result = [None] * len(screen_size)
if not manual:
fixed_size = None
if fitmode == constants.ZOOM_MODE_SIZE:
fitmode = prefs['fit to size mode'] # reassigning fitmode
fixed_size = int(prefs['fit to size px'])
if fitmode == constants.ZOOM_MODE_WIDTH:
axis = constants.WIDTH_AXIS
elif fitmode == constants.ZOOM_MODE_HEIGHT:
axis = constants.HEIGHT_AXIS
else:
assert False, 'Cannot map fitmode to axis'
result[axis] = fixed_size if fixed_size is not None else screen_size[axis]
return result
def _calc_limits(union_size, screen_size, fitmode, allow_upscaling):
''' Returns a list or a tuple with the i-th element set to int x if
fitmode limits the size at the i-th axis to x, or None if fitmode has no
preference for this axis. '''
manual = fitmode == constants.ZOOM_MODE_MANUAL
if fitmode == constants.ZOOM_MODE_BEST or \
(manual and allow_upscaling and all(tools.smaller(union_size, screen_size))):
return screen_size
result = [None] * len(screen_size)
if not manual:
fixed_size = None
if fitmode == constants.ZOOM_MODE_SIZE:
fitmode = prefs['fit to size mode'] # reassigning fitmode
fixed_size = int(prefs['fit to size px'])
if fitmode == constants.ZOOM_MODE_WIDTH:
axis = constants.WIDTH_AXIS
elif fitmode == constants.ZOOM_MODE_HEIGHT:
axis = constants.HEIGHT_AXIS
else:
assert False, 'Cannot map fitmode to axis'
result[
axis] = fixed_size if fixed_size is not None else screen_size[
axis]
return result
def _draw_image(self, at_bottom, scroll):
self._display_active_widgets()
if not self.filehandler.file_loaded:
self._waiting_for_redraw = False
return False
self.is_virtual_double_page = self.imagehandler.get_virtual_double_page()
if self.imagehandler.page_is_available():
distribution_axis = constants.DISTRIBUTION_AXIS
alignment_axis = constants.ALIGNMENT_AXIS
n = 2 if self.displayed_double() else 1 # XXX limited to at most 2 pages
pixbufs = list(self.imagehandler.get_pixbufs(n))
rotations = [self._get_pixbuf_rotation(x, True) for x in pixbufs]
sizes = map(lambda y: tuple(reversed(y[1])) \
if rotations[y[0]] in (90, 270) else y[1], # 2D only
enumerate([(x.get_width(), x.get_height()) for x in pixbufs]))
viewport_size = () # dummy
expand_area = False
scrollbar_requests = [False] * len(self._scroll)
# Visible area size is recomputed depending on scrollbar visibility
while True:
self._show_scrollbars(scrollbar_requests)
new_viewport_size = self.get_visible_area_size()
if new_viewport_size == viewport_size:
break
viewport_size = new_viewport_size
zoom_dummy_size = list(viewport_size)
dasize = zoom_dummy_size[distribution_axis] - \
self._spacing * (n - 1)
if dasize <= 0:
dasize = 1
zoom_dummy_size[distribution_axis] = dasize
scaled_sizes = self.zoom.get_zoomed_size(sizes, zoom_dummy_size,
distribution_axis)
self.layout = scrolling.FiniteLayout(scaled_sizes, viewport_size,
scrolling.MANGA_ORIENTATION if self.is_manga_mode
else scrolling.WESTERN_ORIENTATION, self._spacing,
expand_area, distribution_axis, alignment_axis)
union_scaled_size = self.layout.get_union_box().get_size()
scrollbar_requests = map(operator.or_, scrollbar_requests,
tools.smaller(viewport_size, union_scaled_size))
if len(filter(None, scrollbar_requests)) > 1 and not expand_area:
expand_area = True
viewport_size = () # start anew
for i in range(n):
pixbufs[i] = image_tools.fit_pixbuf_to_rectangle(
pixbufs[i], scaled_sizes[i], rotations[i])
for i in range(n):
if prefs['horizontal flip']: # 2D only
pixbufs[i] = pixbufs[i].flip(horizontal=True)
if prefs['vertical flip']: # 2D only
pixbufs[i] = pixbufs[i].flip(horizontal=False)
pixbufs[i] = self.enhancer.enhance(pixbufs[i])
for i in range(n):
self.images[i].set_from_pixbuf(pixbufs[i])
scales = tuple(map(lambda x, y: math.sqrt(tools.div(
tools.volume(x), tools.volume(y))), scaled_sizes, sizes))
resolutions = tuple(map(lambda x, y: x + (y,), sizes, scales))
if self.is_manga_mode:
resolutions = tuple(reversed(resolutions))
self.statusbar.set_resolution(resolutions)
smartbg = prefs['smart bg']
smartthumbbg = prefs['smart thumb bg'] and prefs['show thumbnails']
if smartbg or smartthumbbg:
bg_colour = self.imagehandler.get_pixbuf_auto_background(n)
if smartbg:
self.set_bg_colour(bg_colour)
if smartthumbbg:
self.thumbnailsidebar.change_thumbnail_background_color(bg_colour)
#self._image_box.window.freeze_updates() # XXX replacement necessary?
self._main_layout.set_size(*union_scaled_size)
content_boxes = self.layout.get_content_boxes()
for i in range(n):
self._main_layout.move(self.images[i],
*content_boxes[i].get_position())
for i in range(n):
self.images[i].show()
for i in range(n, len(self.images)):
self.images[i].hide()
if scroll:
if at_bottom:
self.scroll_to_fixed(horiz='endsecond', vert='bottom')
else:
self.scroll_to_fixed(horiz='startfirst', vert='top')
#self._image_box.window.thaw_updates() # XXX replacement necessary?
else:
# If the pixbuf for the current page(s) isn't available,
# hide all images to clear any old pixbufs.
# XXX How about calling self._clear_main_area?
for i in range(len(self.images)):
self.images[i].hide()
self._update_page_information()
self._waiting_for_redraw = False
return False
def _draw_image(self, at_bottom, scroll):
self._display_active_widgets()
if not self.filehandler.file_loaded:
self._waiting_for_redraw = False
return False
self.is_virtual_double_page = self.imagehandler.get_virtual_double_page(
)
if self.imagehandler.page_is_available():
distribution_axis = constants.DISTRIBUTION_AXIS
alignment_axis = constants.ALIGNMENT_AXIS
n = 2 if self.displayed_double(
) else 1 # XXX limited to at most 2 pages
pixbufs = list(self.imagehandler.get_pixbufs(n))
rotations = [self._get_pixbuf_rotation(x, True) for x in pixbufs]
sizes = map(lambda y: tuple(reversed(y[1])) \
if rotations[y[0]] in (90, 270) else y[1], # 2D only
enumerate([(x.get_width(), x.get_height()) for x in pixbufs]))
viewport_size = () # dummy
expand_area = False
scrollbar_requests = [False] * len(self._scroll)
# Visible area size is recomputed depending on scrollbar visibility
while True:
self._show_scrollbars(scrollbar_requests)
new_viewport_size = self.get_visible_area_size()
if new_viewport_size == viewport_size:
break
viewport_size = new_viewport_size
zoom_dummy_size = list(viewport_size)
dasize = zoom_dummy_size[distribution_axis] - \
self._spacing * (n - 1)
if dasize <= 0:
dasize = 1
zoom_dummy_size[distribution_axis] = dasize
scaled_sizes = self.zoom.get_zoomed_size(
sizes, zoom_dummy_size, distribution_axis)
self.layout = layout.FiniteLayout(
scaled_sizes, viewport_size, constants.MANGA_ORIENTATION
if self.is_manga_mode else constants.WESTERN_ORIENTATION,
self._spacing, expand_area, distribution_axis,
alignment_axis)
union_scaled_size = self.layout.get_union_box().get_size()
scrollbar_requests = map(
operator.or_, scrollbar_requests,
tools.smaller(viewport_size, union_scaled_size))
if len(filter(None,
scrollbar_requests)) > 1 and not expand_area:
expand_area = True
viewport_size = () # start anew
for i in range(n):
pixbufs[i] = image_tools.fit_pixbuf_to_rectangle(
pixbufs[i], scaled_sizes[i], rotations[i])
for i in range(n):
if prefs['horizontal flip']: # 2D only
pixbufs[i] = pixbufs[i].flip(horizontal=True)
if prefs['vertical flip']: # 2D only
pixbufs[i] = pixbufs[i].flip(horizontal=False)
pixbufs[i] = self.enhancer.enhance(pixbufs[i])
for i in range(n):
image_tools.set_from_pixbuf(self.images[i], pixbufs[i])
scales = tuple(
map(
lambda x, y: math.sqrt(
tools.div(tools.volume(x), tools.volume(y))),
scaled_sizes, sizes))
resolutions = tuple(map(lambda x, y: x + (y, ), sizes, scales))
if self.is_manga_mode:
resolutions = tuple(reversed(resolutions))
self.statusbar.set_resolution(resolutions)
smartbg = prefs['smart bg']
smartthumbbg = prefs['smart thumb bg'] and prefs['show thumbnails']
if smartbg or smartthumbbg:
bg_colour = self.imagehandler.get_pixbuf_auto_background(n)
if smartbg:
self.set_bg_colour(bg_colour)
if smartthumbbg:
self.thumbnailsidebar.change_thumbnail_background_color(
bg_colour)
#self._image_box.window.freeze_updates() # XXX replacement necessary?
self._main_layout.set_size(*union_scaled_size)
content_boxes = self.layout.get_content_boxes()
for i in range(n):
self._main_layout.move(self.images[i],
*content_boxes[i].get_position())
for i in range(n):
self.images[i].show()
for i in range(n, len(self.images)):
self.images[i].hide()
if scroll:
if at_bottom:
self.scroll_to_predefined((constants.SCROLL_TO_END, ) * 2,
constants.LAST_INDEX)
else:
self.scroll_to_predefined(
(constants.SCROLL_TO_START, ) * 2,
constants.FIRST_INDEX)
#self._image_box.window.thaw_updates() # XXX replacement necessary?
else:
# If the pixbuf for the current page(s) isn't available,
# hide all images to clear any old pixbufs.
# XXX How about calling self._clear_main_area?
for i in range(len(self.images)):
self.images[i].hide()
self._update_page_information()
self._waiting_for_redraw = False
return False
def _draw_image(self, scroll_to):
self._update_toggles_visibility()
self.osd.clear()
if not self.filehandler.file_loaded:
self._clear_main_area()
self._waiting_for_redraw = False
return False
if self.imagehandler.page_is_available():
distribution_axis = constants.DISTRIBUTION_AXIS
alignment_axis = constants.ALIGNMENT_AXIS
pixbuf_count = 2 if self.displayed_double(
) else 1 # XXX limited to at most 2 pages
pixbuf_list = list(self.imagehandler.get_pixbufs(pixbuf_count))
do_not_transform = [
image_tools.disable_transform(x) for x in pixbuf_list
]
size_list = [[pixbuf.get_width(),
pixbuf.get_height()] for pixbuf in pixbuf_list]
if self.is_manga_mode:
orientation = constants.MANGA_ORIENTATION
else:
orientation = constants.WESTERN_ORIENTATION
# Rotation handling:
# - apply Exif rotation on individual images
# - apply automatic rotation (size based) on whole page
# - apply manual rotation on whole page
if prefs['auto rotate from exif']:
rotation_list = [
image_tools.get_implied_rotation(pixbuf)
for pixbuf in pixbuf_list
]
else:
rotation_list = [0] * len(pixbuf_list)
virtual_size = [0, 0]
for i in range(pixbuf_count):
if rotation_list[i] in (90, 270):
size_list[i].reverse()
size = size_list[i]
virtual_size[distribution_axis] += size[distribution_axis]
virtual_size[alignment_axis] = max(
virtual_size[alignment_axis], size[alignment_axis])
rotation = self._get_size_rotation(*virtual_size)
rotation = (rotation + prefs['rotation']) % 360
if rotation in (90, 270):
distribution_axis, alignment_axis = alignment_axis, distribution_axis
orientation = list(orientation)
orientation.reverse()
for i in range(pixbuf_count):
size_list[i].reverse()
if rotation in (180, 270):
orientation = tools.vector_opposite(orientation)
for i in range(pixbuf_count):
rotation_list[i] = (rotation_list[i] + rotation) % 360
if prefs['vertical flip'] and rotation in (90, 270):
orientation = tools.vector_opposite(orientation)
if prefs['horizontal flip'] and rotation in (0, 180):
orientation = tools.vector_opposite(orientation)
viewport_size = () # dummy
expand_area = False
scrollbar_requests = [False] * len(self._scroll)
# Visible area size is recomputed depending on scrollbar visibility
while True:
self._show_scrollbars(scrollbar_requests)
new_viewport_size = self.get_visible_area_size()
if new_viewport_size == viewport_size:
break
viewport_size = new_viewport_size
zoom_dummy_size = list(viewport_size)
dasize = zoom_dummy_size[distribution_axis] - \
self._spacing * (pixbuf_count - 1)
if dasize <= 0:
dasize = 1
zoom_dummy_size[distribution_axis] = dasize
scaled_sizes = self.zoom.get_zoomed_size(
size_list, zoom_dummy_size, distribution_axis,
do_not_transform)
self.layout = layout.FiniteLayout(scaled_sizes, viewport_size,
orientation, self._spacing,
expand_area,
distribution_axis,
alignment_axis)
union_scaled_size = self.layout.get_union_box().get_size()
scrollbar_requests = [(old or new) for old, new in zip(
scrollbar_requests,
tools.smaller(viewport_size, union_scaled_size))]
if len(tuple(filter(
None, scrollbar_requests))) > 1 and not expand_area:
expand_area = True
viewport_size = () # start anew
for i in range(pixbuf_count):
pixbuf_list[i] = image_tools.fit_pixbuf_to_rectangle(
pixbuf_list[i], scaled_sizes[i], rotation_list[i])
for i in range(pixbuf_count):
pixbuf_list[i] = image_tools.trans_pixbuf(
pixbuf_list[i],
flip=prefs['vertical flip'],
flop=prefs['horizontal flip'])
pixbuf_list[i] = self.enhancer.enhance(pixbuf_list[i])
for i in range(pixbuf_count):
image_tools.set_from_pixbuf(self.images[i], pixbuf_list[i])
resolutions = [
(*size, scaled_size[0] / size[0])
for scaled_size, size in zip(scaled_sizes, size_list)
]
if self.is_manga_mode:
resolutions.reverse()
self.statusbar.set_resolution(resolutions)
self.statusbar.update()
smartbg = prefs['smart bg']
smartthumbbg = prefs['show thumbnails'] and prefs['smart thumb bg']
if smartbg or smartthumbbg:
bg_color = self.imagehandler.get_pixbuf_auto_background(
pixbuf_count)
if smartbg:
self.set_bg_color(bg_color)
if smartthumbbg:
self.thumbnailsidebar.change_thumbnail_background_color(
bg_color)
self._main_layout.get_bin_window().freeze_updates()
self._main_layout.set_size(*union_scaled_size)
content_boxes = self.layout.get_content_boxes()
for i in range(pixbuf_count):
self._main_layout.move(self.images[i],
*content_boxes[i].get_position())
for i in range(pixbuf_count):
self.images[i].show()
for i in range(pixbuf_count, len(self.images)):
self.images[i].hide()
# Reset orientation so scrolling behaviour is sane.
if self.is_manga_mode:
self.layout.set_orientation(constants.MANGA_ORIENTATION)
else:
self.layout.set_orientation(constants.WESTERN_ORIENTATION)
if scroll_to is not None:
destination = (scroll_to, ) * 2
if constants.SCROLL_TO_START == scroll_to:
index = constants.FIRST_INDEX
elif constants.SCROLL_TO_END == scroll_to:
index = constants.LAST_INDEX
else:
index = None
self.scroll_to_predefined(destination, index)
self._main_layout.get_bin_window().thaw_updates()
else:
# Save scroll destination for when the page becomes available.
self._last_scroll_destination = scroll_to
# If the pixbuf for the current page(s) isn't available,
# hide all images to clear any old pixbufs.
# XXX How about calling self._clear_main_area?
for i in range(len(self.images)):
self.images[i].hide()
self._show_scrollbars([False] * len(self._scroll))
self._waiting_for_redraw = False
return False
def _draw_image(self, scroll_to):
self._update_toggles_visibility()
if not self.filehandler.file_loaded:
self._clear_main_area()
self._waiting_for_redraw = False
return False
if self.imagehandler.page_is_available():
distribution_axis = constants.DISTRIBUTION_AXIS
alignment_axis = constants.ALIGNMENT_AXIS
pixbuf_count = 2 if self.displayed_double() else 1 # XXX limited to at most 2 pages
pixbuf_list = list(self.imagehandler.get_pixbufs(pixbuf_count))
size_list = [[pixbuf.get_width(), pixbuf.get_height()]
for pixbuf in pixbuf_list]
if self.is_manga_mode:
orientation = constants.MANGA_ORIENTATION
else:
orientation = constants.WESTERN_ORIENTATION
# Rotation handling:
# - apply Exif rotation on individual images
# - apply automatic rotation (size based) on whole page
# - apply manual rotation on whole page
if prefs['auto rotate from exif']:
rotation_list = [image_tools.get_implied_rotation(pixbuf)
for pixbuf in pixbuf_list]
else:
rotation_list = [0] * len(pixbuf_list)
virtual_size = [0, 0]
for i in range(pixbuf_count):
if rotation_list[i] in (90, 270):
size_list[i].reverse()
size = size_list[i]
virtual_size[distribution_axis] += size[distribution_axis]
virtual_size[alignment_axis] = max(virtual_size[alignment_axis],
size[alignment_axis])
rotation = self._get_size_rotation(*virtual_size)
rotation = (rotation + prefs['rotation']) % 360
if rotation in (90, 270):
distribution_axis, alignment_axis = alignment_axis, distribution_axis
orientation = list(orientation)
orientation.reverse()
for i in range(pixbuf_count):
size_list[i].reverse()
if rotation in (180, 270):
orientation = tools.vector_opposite(orientation)
for i in range(pixbuf_count):
rotation_list[i] = (rotation_list[i] + rotation) % 360
if prefs['vertical flip'] and rotation in (90, 270):
orientation = tools.vector_opposite(orientation)
if prefs['horizontal flip'] and rotation in (0, 180):
orientation = tools.vector_opposite(orientation)
viewport_size = () # dummy
expand_area = False
scrollbar_requests = [False] * len(self._scroll)
# Visible area size is recomputed depending on scrollbar visibility
while True:
self._show_scrollbars(scrollbar_requests)
new_viewport_size = self.get_visible_area_size()
if new_viewport_size == viewport_size:
break
viewport_size = new_viewport_size
zoom_dummy_size = list(viewport_size)
dasize = zoom_dummy_size[distribution_axis] - \
self._spacing * (pixbuf_count - 1)
if dasize <= 0:
dasize = 1
zoom_dummy_size[distribution_axis] = dasize
scaled_sizes = self.zoom.get_zoomed_size(size_list, zoom_dummy_size,
distribution_axis)
self.layout = layout.FiniteLayout(scaled_sizes,
viewport_size,
orientation,
self._spacing,
expand_area,
distribution_axis,
alignment_axis)
union_scaled_size = self.layout.get_union_box().get_size()
scrollbar_requests = map(operator.or_, scrollbar_requests,
tools.smaller(viewport_size, union_scaled_size))
if len(filter(None, scrollbar_requests)) > 1 and not expand_area:
expand_area = True
viewport_size = () # start anew
for i in range(pixbuf_count):
pixbuf_list[i] = image_tools.fit_pixbuf_to_rectangle(
pixbuf_list[i], scaled_sizes[i], rotation_list[i])
for i in range(pixbuf_count):
if prefs['horizontal flip']:
pixbuf_list[i] = pixbuf_list[i].flip(horizontal=True)
if prefs['vertical flip']:
pixbuf_list[i] = pixbuf_list[i].flip(horizontal=False)
pixbuf_list[i] = self.enhancer.enhance(pixbuf_list[i])
for i in range(pixbuf_count):
image_tools.set_from_pixbuf(self.images[i], pixbuf_list[i])
scales = tuple(map(lambda x, y: math.sqrt(tools.div(
tools.volume(x), tools.volume(y))), scaled_sizes, size_list))
resolutions = tuple(map(lambda x, y: x + [y,], size_list, scales))
if self.is_manga_mode:
resolutions = tuple(reversed(resolutions))
self.statusbar.set_resolution(resolutions)
self.statusbar.update()
smartbg = prefs['smart bg']
smartthumbbg = prefs['smart thumb bg'] and prefs['show thumbnails']
if smartbg or smartthumbbg:
bg_colour = self.imagehandler.get_pixbuf_auto_background(pixbuf_count)
if smartbg:
self.set_bg_colour(bg_colour)
if smartthumbbg:
self.thumbnailsidebar.change_thumbnail_background_color(bg_colour)
self._main_layout.window.freeze_updates()
self._main_layout.set_size(*union_scaled_size)
content_boxes = self.layout.get_content_boxes()
for i in range(pixbuf_count):
self._main_layout.move(self.images[i],
*content_boxes[i].get_position())
for i in range(pixbuf_count):
self.images[i].show()
for i in range(pixbuf_count, len(self.images)):
self.images[i].hide()
# Reset orientation so scrolling behaviour is sane.
if self.is_manga_mode:
self.layout.set_orientation(constants.MANGA_ORIENTATION)
else:
self.layout.set_orientation(constants.WESTERN_ORIENTATION)
if scroll_to is not None:
destination = (scroll_to,) * 2
if constants.SCROLL_TO_START == scroll_to:
index = constants.FIRST_INDEX
elif constants.SCROLL_TO_END == scroll_to:
index = constants.LAST_INDEX
else:
index = None
self.scroll_to_predefined(destination, index)
self._main_layout.window.thaw_updates()
else:
# Save scroll destination for when the page becomes available.
self._last_scroll_destination = scroll_to
# If the pixbuf for the current page(s) isn't available,
# hide all images to clear any old pixbufs.
# XXX How about calling self._clear_main_area?
for i in range(len(self.images)):
self.images[i].hide()
self._show_scrollbars([False] * len(self._scroll))
self._waiting_for_redraw = False
return False