def _check_button_cb(self, button, preference):
'''Callback for all checkbutton-type preferences.'''
prefs[preference] = button.get_active()
if preference == 'color box bg' and button.get_active():
if not prefs['smart bg'] or not self._window.filehandler.file_loaded:
self._window.set_bg_color(prefs['bg colour'])
elif preference == 'smart bg' and button.get_active():
# if the color is no longer using the smart background then return it to the chosen color
if not prefs[preference]:
self._window.set_bg_color(prefs['bg colour'])
else:
# draw_image() will set the main background to the smart background
self._window.draw_image()
elif preference == 'color box thumb bg' and button.get_active():
if prefs[preference]:
prefs['smart thumb bg'] = False
prefs['thumbnail bg uses main colour'] = False
self._window.thumbnailsidebar.change_thumbnail_background_color(prefs['thumb bg colour'])
else:
self._window.draw_image()
elif preference == 'smart thumb bg' and button.get_active():
if prefs[preference]:
prefs['color box thumb bg'] = False
prefs['thumbnail bg uses main colour'] = False
pixbuf = image_tools.static_image(image_tools.unwrap_image(
self._window.images[0])) # XXX transitional(double page limitation)
if pixbuf:
bg_color = image_tools.get_most_common_edge_color(pixbuf)
self._window.thumbnailsidebar.change_thumbnail_background_color(bg_color)
else:
self._window.draw_image()
elif preference in ('checkered bg for transparent images',
'no double page for wide images', 'auto rotate from exif'):
self._window.draw_image()
elif (preference == 'hide all in fullscreen' and
self._window.is_fullscreen):
self._window.draw_image()
elif preference == 'show page numbers on thumbnails':
self._window.thumbnailsidebar.toggle_page_numbers_visible()
elif preference in ('animation background', 'animation transform'):
self._window.filehandler.refresh_file()
elif preference in ('check image mimetype',):
self._window.filehandler.refresh_file()
def _check_button_cb(self, button, preference):
"""Callback for all checkbutton-type preferences."""
prefs[preference] = button.get_active()
if preference == 'color box bg' and button.get_active():
if not prefs['smart bg'] or not self._window.filehandler.file_loaded:
self._window.set_bg_colour(prefs['bg colour'])
elif preference == 'smart bg' and button.get_active():
# if the color is no longer using the smart background then return it to the chosen color
if not prefs[preference]:
self._window.set_bg_colour(prefs['bg colour'])
else:
# draw_image() will set the main background to the smart background
self._window.draw_image()
elif preference == 'color box thumb bg' and button.get_active():
if prefs[preference]:
prefs['smart thumb bg'] = False
prefs['thumbnail bg uses main colour'] = False
self._window.thumbnailsidebar.change_thumbnail_background_color(prefs['thumb bg colour'])
else:
self._window.draw_image()
elif preference == 'smart thumb bg' and button.get_active():
if prefs[preference]:
prefs['color box thumb bg'] = False
prefs['thumbnail bg uses main colour'] = False
pixbuf = image_tools.static_image(image_tools.unwrap_image(
self._window.images[0])) # XXX transitional(double page limitation)
if pixbuf:
bg_color = image_tools.get_most_common_edge_colour(pixbuf)
self._window.thumbnailsidebar.change_thumbnail_background_color(bg_color)
else:
self._window.draw_image()
elif preference in ('checkered bg for transparent images',
'no double page for wide images', 'auto rotate from exif'):
self._window.draw_image()
elif (preference == 'hide all in fullscreen' and
self._window.is_fullscreen):
self._window.draw_image()
elif preference == 'show page numbers on thumbnails':
self._window.thumbnailsidebar.toggle_page_numbers_visible()
def _add_subpixbuf(self, canvas, x, y, image_size, source_pixbuf):
'''Copy a subpixbuf from <source_pixbuf> to <canvas> as it should
be in the lens if the coordinates <x>, <y> are the mouse pointer
position on the main window layout area.
The displayed image (scaled from the <source_pixbuf>) must have
size <image_size>.
'''
# Prevent division by zero exceptions further down
if not image_size[0]:
return
# FIXME This merely prevents Errors being raised if source_pixbuf is an
# animation. The result might be broken, though, since animation,
# rotation etc. might not match or will be ignored:
source_pixbuf = image_tools.static_image(source_pixbuf)
rotation = prefs['rotation']
if prefs['auto rotate from exif']:
rotation += image_tools.get_implied_rotation(source_pixbuf)
rotation = rotation % 360
if rotation in [90, 270]:
scale = float(source_pixbuf.get_height()) / image_size[0]
else:
scale = float(source_pixbuf.get_width()) / image_size[0]
x *= scale
y *= scale
source_mag = prefs['lens magnification'] / scale
width = height = prefs['lens size'] / source_mag
paste_left = x > width / 2
paste_top = y > height / 2
dest_x = max(0, int(math.ceil((width / 2 - x) * source_mag)))
dest_y = max(0, int(math.ceil((height / 2 - y) * source_mag)))
if rotation == 90:
x, y = y, source_pixbuf.get_height() - x
elif rotation == 180:
x = source_pixbuf.get_width() - x
y = source_pixbuf.get_height() - y
elif rotation == 270:
x, y = source_pixbuf.get_width() - y, x
if prefs['horizontal flip']:
if rotation in (90, 270):
y = source_pixbuf.get_height() - y
else:
x = source_pixbuf.get_width() - x
if prefs['vertical flip']:
if rotation in (90, 270):
x = source_pixbuf.get_width() - x
else:
y = source_pixbuf.get_height() - y
src_x = x - width / 2
src_y = y - height / 2
if src_x < 0:
width += src_x
src_x = 0
if src_y < 0:
height += src_y
src_y = 0
width = max(0, min(source_pixbuf.get_width() - src_x, width))
height = max(0, min(source_pixbuf.get_height() - src_y, height))
if width < 1 or height < 1:
return
subpixbuf = source_pixbuf.new_subpixbuf(int(src_x), int(src_y),
int(width), int(height))
subpixbuf = subpixbuf.scale_simple(
int(math.ceil(source_mag * subpixbuf.get_width())),
int(math.ceil(source_mag * subpixbuf.get_height())),
prefs['scaling quality'])
if rotation == 90:
subpixbuf = subpixbuf.rotate_simple(Gdk.PIXBUF_ROTATE_CLOCKWISE)
elif rotation == 180:
subpixbuf = subpixbuf.rotate_simple(Gdk.PIXBUF_ROTATE_UPSIDEDOWN)
elif rotation == 270:
subpixbuf = subpixbuf.rotate_simple(
Gdk.PIXBUF_ROTATE_COUNTERCLOCKWISE)
if prefs['horizontal flip']:
subpixbuf = subpixbuf.flip(horizontal=True)
if prefs['vertical flip']:
subpixbuf = subpixbuf.flip(horizontal=False)
subpixbuf = self._window.enhancer.enhance(subpixbuf)
if paste_left:
dest_x = 0
else:
dest_x = min(canvas.get_width() - subpixbuf.get_width(), dest_x)
if paste_top:
dest_y = 0
else:
dest_y = min(canvas.get_height() - subpixbuf.get_height(), dest_y)
if subpixbuf.get_has_alpha(
) and prefs['checkered bg for transparent images']:
subpixbuf = subpixbuf.composite_color_simple(
subpixbuf.get_width(), subpixbuf.get_height(),
GdkPixbuf.InterpType.NEAREST, 255, 8, 0x777777, 0x999999)
subpixbuf.copy_area(0, 0, subpixbuf.get_width(),
subpixbuf.get_height(), canvas, dest_x, dest_y)
def draw_histogram(self, pixbuf):
"""Draw a histogram representing <pixbuf> in the dialog."""
pixbuf = image_tools.static_image(pixbuf)
histogram_pixbuf = histogram.draw_histogram(pixbuf, text=False)
self._hist_image.set_from_pixbuf(histogram_pixbuf)
def draw_histogram(self, pixbuf):
"""Draw a histogram representing <pixbuf> in the dialog."""
pixbuf = image_tools.static_image(pixbuf)
histogram_pixbuf = histogram.draw_histogram(pixbuf, text=False)
self._hist_image.set_from_pixbuf(histogram_pixbuf)
def _add_subpixbuf(self, canvas, x, y, image_size, source_pixbuf):
"""Copy a subpixbuf from <source_pixbuf> to <canvas> as it should
be in the lens if the coordinates <x>, <y> are the mouse pointer
position on the main window layout area.
The displayed image (scaled from the <source_pixbuf>) must have
size <image_size>.
"""
# Prevent division by zero exceptions further down
if not image_size[0]:
return
# FIXME This merely prevents Errors being raised if source_pixbuf is an
# animation. The result might be broken, though, since animation,
# rotation etc. might not match or will be ignored:
source_pixbuf = image_tools.static_image(source_pixbuf)
rotation = prefs['rotation']
if prefs['auto rotate from exif']:
rotation += image_tools.get_implied_rotation(source_pixbuf)
rotation = rotation % 360
if rotation in [90, 270]:
scale = float(source_pixbuf.get_height()) / image_size[0]
else:
scale = float(source_pixbuf.get_width()) / image_size[0]
x *= scale
y *= scale
source_mag = prefs['lens magnification'] / scale
width = height = prefs['lens size'] / source_mag
paste_left = x > width / 2
paste_top = y > height / 2
dest_x = max(0, int(math.ceil((width / 2 - x) * source_mag)))
dest_y = max(0, int(math.ceil((height / 2 - y) * source_mag)))
if rotation == 90:
x, y = y, source_pixbuf.get_height() - x
elif rotation == 180:
x = source_pixbuf.get_width() - x
y = source_pixbuf.get_height() - y
elif rotation == 270:
x, y = source_pixbuf.get_width() - y, x
if prefs['horizontal flip']:
if rotation in (90, 270):
y = source_pixbuf.get_height() - y
else:
x = source_pixbuf.get_width() - x
if prefs['vertical flip']:
if rotation in (90, 270):
x = source_pixbuf.get_width() - x
else:
y = source_pixbuf.get_height() - y
src_x = x - width / 2
src_y = y - height / 2
if src_x < 0:
width += src_x
src_x = 0
if src_y < 0:
height += src_y
src_y = 0
width = max(0, min(source_pixbuf.get_width() - src_x, width))
height = max(0, min(source_pixbuf.get_height() - src_y, height))
if width < 1 or height < 1:
return
subpixbuf = source_pixbuf.subpixbuf(int(src_x), int(src_y),
int(width), int(height))
subpixbuf = subpixbuf.scale_simple(
int(math.ceil(source_mag * subpixbuf.get_width())),
int(math.ceil(source_mag * subpixbuf.get_height())),
prefs['scaling quality'])
if rotation == 90:
subpixbuf = subpixbuf.rotate_simple(
gtk.gdk.PIXBUF_ROTATE_CLOCKWISE)
elif rotation == 180:
subpixbuf = subpixbuf.rotate_simple(
gtk.gdk.PIXBUF_ROTATE_UPSIDEDOWN)
elif rotation == 270:
subpixbuf = subpixbuf.rotate_simple(
gtk.gdk.PIXBUF_ROTATE_COUNTERCLOCKWISE)
if prefs['horizontal flip']:
subpixbuf = subpixbuf.flip(horizontal=True)
if prefs['vertical flip']:
subpixbuf = subpixbuf.flip(horizontal=False)
subpixbuf = self._window.enhancer.enhance(subpixbuf)
if paste_left:
dest_x = 0
else:
dest_x = min(canvas.get_width() - subpixbuf.get_width(), dest_x)
if paste_top:
dest_y = 0
else:
dest_y = min(canvas.get_height() - subpixbuf.get_height(), dest_y)
if subpixbuf.get_has_alpha() and prefs['checkered bg for transparent images']:
subpixbuf = subpixbuf.composite_color_simple(subpixbuf.get_width(), subpixbuf.get_height(),
gtk.gdk.INTERP_NEAREST, 255, 8, 0x777777, 0x999999)
subpixbuf.copy_area(0, 0, subpixbuf.get_width(),
subpixbuf.get_height(), canvas, dest_x, dest_y)