/usr/share/mypaint/lib/document.py is in mypaint 1.1.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright (C) 2007-2008 by Martin Renold <martinxyz@gmx.ch>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
import gui.pygtkcompat
if gui.pygtkcompat.USE_GTK3:
from gi.repository import GdkPixbuf
import os, sys, zipfile, tempfile, time, traceback
join = os.path.join
from cStringIO import StringIO
import xml.etree.ElementTree as ET
from gtk import gdk
import gobject, numpy
from gettext import gettext as _
import helpers, tiledsurface, pixbufsurface, backgroundsurface, mypaintlib
import command, stroke, layer
import brush
N = tiledsurface.N
LOAD_CHUNK_SIZE = 64*1024
from layer import DEFAULT_COMPOSITE_OP, VALID_COMPOSITE_OPS
class SaveLoadError(Exception):
"""Expected errors on loading or saving
Covers stuff like missing permissions or non-existing files.
"""
pass
class Document():
"""
This is the "model" in the Model-View-Controller design.
(The "view" would be ../gui/tileddrawwidget.py.)
It represents everything that the user would want to save.
The "controller" mostly in drawwindow.py.
It is possible to use it without any GUI attached (see ../tests/)
"""
# Please note the following difficulty with the undo stack:
#
# Most of the time there is an unfinished (but already rendered)
# stroke pending, which has to be turned into a command.Action
# or discarded as empty before any other action is possible.
# (split_stroke)
def __init__(self, brushinfo=None):
if not brushinfo:
brushinfo = brush.BrushInfo()
brushinfo.load_defaults()
self.layers = []
self.brush = brush.Brush(brushinfo)
self.brush.brushinfo.observers.append(self.brushsettings_changed_cb)
self.stroke = None
self.canvas_observers = [] #: See `layer_modified_cb()`
self.stroke_observers = [] #: See `split_stroke()`
self.doc_observers = [] #: See `call_doc_observers()`
self.frame_observers = []
self.command_stack_observers = []
self.symmetry_observers = [] #: See `set_symmetry_axis()`
self.__symmetry_axis = None
self.default_background = (255, 255, 255)
self.clear(True)
self._frame = [0, 0, 0, 0]
self._frame_enabled = False
def move_current_layer(self, dx, dy):
layer = self.layers[self.layer_idx]
layer.translate(dx, dy)
def get_frame(self):
return self._frame
def set_frame(self, x=None, y=None, width=None, height=None):
"""Set the size of the frame. Pass None to indicate no-change."""
for i, var in enumerate([x, y, width, height]):
if not var is None:
self._frame[i] = int(var)
for f in self.frame_observers: f()
def get_frame_enabled(self):
return self._frame_enabled
def set_frame_enabled(self, enabled):
self._frame_enabled = enabled
for f in self.frame_observers: f()
frame_enabled = property(get_frame_enabled)
def call_doc_observers(self):
"""Announce major structural changes via `doc_observers`.
This is invoked to announce major structural changes such as the layers
changing or a new document being loaded. The callbacks in the list are
invoked with a single argument, `self`.
"""
for f in self.doc_observers:
f(self)
return True
def get_symmetry_axis(self):
"""Gets the active painting symmetry X axis value.
"""
return self.__symmetry_axis
def set_symmetry_axis(self, x):
"""Sets the active painting symmetry X axis value.
A value of `None` inactivates symmetrical painting. After setting, all
registered `symmetry_observers` are called without arguments.
"""
# TODO: make this undoable?
for layer in self.layers:
layer.set_symmetry_axis(x)
self.__symmetry_axis = x
for func in self.symmetry_observers:
func()
def clear(self, init=False):
self.split_stroke()
self.set_symmetry_axis(None)
if not init:
bbox = self.get_bbox()
# throw everything away, including undo stack
self.command_stack = command.CommandStack()
self.command_stack.stack_observers = self.command_stack_observers
self.set_background(self.default_background)
self.layers = []
self.layer_idx = None
self.add_layer(0)
# disallow undo of the first layer
self.command_stack.clear()
self.unsaved_painting_time = 0.0
if not init:
for f in self.canvas_observers:
f(*bbox)
self.call_doc_observers()
def get_current_layer(self):
return self.layers[self.layer_idx]
layer = property(get_current_layer)
def split_stroke(self):
"""Splits the current stroke, announcing the newly stacked stroke
The stroke being drawn is pushed onto to the command stack and the
callbacks in the list `self.stroke_observers` are invoked with two
arguments: the newly completed stroke, and the brush used. The brush
argument is a temporary read-only convenience object.
This is called every so often when drawing a single long brushstroke on
input to allow parts of a long line to be undone.
"""
if not self.stroke: return
self.stroke.stop_recording()
if not self.stroke.empty:
cmd = command.Stroke(self, self.stroke,
self.snapshot_before_stroke)
self.command_stack.do(cmd)
del self.snapshot_before_stroke
self.unsaved_painting_time += self.stroke.total_painting_time
for f in self.stroke_observers:
f(self.stroke, self.brush)
self.stroke = None
def brushsettings_changed_cb(self, settings, lightweight_settings=set([
'radius_logarithmic', 'color_h', 'color_s', 'color_v',
'opaque', 'hardness', 'slow_tracking', 'slow_tracking_per_dab'
])):
# The lightweight brush settings are expected to change often in
# mid-stroke e.g. by heavy keyboard usage. If only those change, we
# don't create a new undo step. (And thus also no separate pickable
# stroke in the strokemap.)
if settings - lightweight_settings:
self.split_stroke()
def select_layer(self, idx):
self.do(command.SelectLayer(self, idx))
def record_layer_move(self, layer, dx, dy):
layer_idx = self.layers.index(layer)
self.do(command.MoveLayer(self, layer_idx, dx, dy, True))
def move_layer(self, was_idx, new_idx, select_new=False):
self.do(command.ReorderSingleLayer(self, was_idx, new_idx, select_new))
def duplicate_layer(self, insert_idx=None, name=''):
self.do(command.DuplicateLayer(self, insert_idx, name))
def reorder_layers(self, new_layers):
self.do(command.ReorderLayers(self, new_layers))
def clear_layer(self):
if not self.layer.is_empty():
self.do(command.ClearLayer(self))
def stroke_to(self, dtime, x, y, pressure, xtilt, ytilt):
"""Draws a stroke to the current layer with the current brush.
This is called by GUI code in response to motion events on the canvas -
both with and without pressure. If enough time has elapsed,
`split_stroke()` is called.
:param self:
This is an object method.
:param float dtime:
Floating-point number of seconds since the last call to this,
function, for motion interpolation etc.
:param float x:
Document X position of the end-point of this stroke.
:param float y:
Document Y position of the end-point of this stroke.
:param float pressure:
Pressure, ranging from 0.0 to 1.0.
:param float xtilt:
X-axis tilt, ranging from -1.0 to 1.0.
:param float ytilt:
Y-axis tilt, ranging from -1.0 to 1.0.
"""
if not self.stroke:
self.stroke = stroke.Stroke()
self.stroke.start_recording(self.brush)
self.snapshot_before_stroke = self.layer.save_snapshot()
self.stroke.record_event(dtime, x, y, pressure, xtilt, ytilt)
split = self.layer.stroke_to(self.brush, x, y,
pressure, xtilt, ytilt, dtime)
if split:
self.split_stroke()
def redo_last_stroke_with_different_brush(self, brush):
cmd = self.get_last_command()
if not isinstance(cmd, command.Stroke):
return
cmd = self.undo()
assert isinstance(cmd, command.Stroke)
new_stroke = cmd.stroke.copy_using_different_brush(brush)
snapshot_before = self.layer.save_snapshot()
new_stroke.render(self.layer._surface)
self.do(command.Stroke(self, new_stroke, snapshot_before))
def layer_modified_cb(self, *args):
"""Forwards region modify notifications (area invalidations)
GUI code can respond to these notifications by appending callbacks to
`self.canvas_observers`. Each callback is invoked with the bounding box
of the changed region: ``cb(x, y, w, h)``, or ``cb(0, 0, 0, 0)`` to
denote that everything needs to be redrawn.
See also: `invalidate_all()`.
"""
# for now, any layer modification is assumed to be visible
for f in self.canvas_observers:
f(*args)
def invalidate_all(self):
"""Marks everything as invalid.
Invokes the callbacks in `self.canvas_observers` passing the notation
for "everything" as arguments. See `layer_modified_cb()` for details.
"""
for f in self.canvas_observers:
f(0, 0, 0, 0)
def undo(self):
self.split_stroke()
while 1:
cmd = self.command_stack.undo()
if not cmd or not cmd.automatic_undo:
return cmd
def redo(self):
self.split_stroke()
while 1:
cmd = self.command_stack.redo()
if not cmd or not cmd.automatic_undo:
return cmd
def do(self, cmd):
self.split_stroke()
self.command_stack.do(cmd)
def update_last_command(self, **kwargs):
self.split_stroke()
return self.command_stack.update_last_command(**kwargs)
def get_last_command(self):
self.split_stroke()
return self.command_stack.get_last_command()
def get_bbox(self):
"""Returns the dynamic bounding box of the document.
This is currently the union of all the bounding boxes of all of the
layers. It disregards the user-chosen frame.
"""
res = helpers.Rect()
for layer in self.layers:
# OPTIMIZE: only visible layers...
# careful: currently saving assumes that all layers are included
bbox = layer.get_bbox()
res.expandToIncludeRect(bbox)
return res
def get_effective_bbox(self):
"""Return the effective bounding box of the document.
If the frame is enabled, this is the bounding box of the frame,
else the (dynamic) bounding box of the document.
"""
return self.get_frame() if self.frame_enabled else self.get_bbox()
def blit_tile_into(self, dst, dst_has_alpha, tx, ty, mipmap_level=0, layers=None, background=None):
assert dst_has_alpha is False
if layers is None:
layers = self.layers
if background is None:
background = self.background
assert dst.shape[-1] == 4
if dst.dtype == 'uint8':
dst_8bit = dst
dst = numpy.empty((N, N, 4), dtype='uint16')
else:
dst_8bit = None
background.blit_tile_into(dst, dst_has_alpha, tx, ty, mipmap_level)
for layer in layers:
layer.composite_tile(dst, dst_has_alpha, tx, ty, mipmap_level)
if dst_8bit is not None:
mypaintlib.tile_convert_rgbu16_to_rgbu8(dst, dst_8bit)
def get_rendered_image_behind_current_layer(self, tx, ty):
dst = numpy.empty((N, N, 4), dtype='uint16')
l = self.layers[0:self.layer_idx]
self.blit_tile_into(dst, False, tx, ty, layers=l)
return dst
def add_layer(self, insert_idx=None, after=None, name=''):
self.do(command.AddLayer(self, insert_idx, after, name))
def remove_layer(self,layer=None):
self.do(command.RemoveLayer(self, layer))
def rename_layer(self, layer, name):
self.do(command.RenameLayer(self, name, layer))
def convert_layer_to_normal_mode(self):
self.do(command.ConvertLayerToNormalMode(self, self.layer))
def merge_layer_down(self):
dst_idx = self.layer_idx - 1
if dst_idx < 0:
return False
self.do(command.MergeLayer(self, dst_idx))
return True
def load_layer_from_pixbuf(self, pixbuf, x=0, y=0):
arr = helpers.gdkpixbuf2numpy(pixbuf)
s = tiledsurface.Surface()
bbox = s.load_from_numpy(arr, x, y)
self.do(command.LoadLayer(self, s))
return bbox
def load_layer_from_png(self, filename, x=0, y=0, feedback_cb=None):
s = tiledsurface.Surface()
bbox = s.load_from_png(filename, x, y, feedback_cb)
self.do(command.LoadLayer(self, s))
return bbox
def set_layer_visibility(self, visible, layer):
"""Sets the visibility of a layer."""
cmd = self.get_last_command()
if isinstance(cmd, command.SetLayerVisibility) and cmd.layer is layer:
self.update_last_command(visible=visible)
else:
self.do(command.SetLayerVisibility(self, visible, layer))
def set_layer_locked(self, locked, layer):
"""Sets the input-locked status of a layer."""
cmd = self.get_last_command()
if isinstance(cmd, command.SetLayerLocked) and cmd.layer is layer:
self.update_last_command(locked=locked)
else:
self.do(command.SetLayerLocked(self, locked, layer))
def set_layer_opacity(self, opacity, layer=None):
"""Sets the opacity of a layer.
If layer=None, works on the current layer.
"""
cmd = self.get_last_command()
if isinstance(cmd, command.SetLayerOpacity):
self.undo()
self.do(command.SetLayerOpacity(self, opacity, layer))
def set_layer_compositeop(self, compositeop, layer=None):
"""Sets the compositing operator for a layer.
If layer=None, works on the current layer.
"""
if compositeop not in VALID_COMPOSITE_OPS:
compositeop = DEFAULT_COMPOSITE_OP
cmd = self.get_last_command()
if isinstance(cmd, command.SetLayerCompositeOp):
self.undo()
self.do(command.SetLayerCompositeOp(self, compositeop, layer))
def set_background(self, obj, make_default=False):
# This is not an undoable action. One reason is that dragging
# on the color chooser would get tons of undo steps.
if not isinstance(obj, backgroundsurface.Background):
obj = backgroundsurface.Background(obj)
self.background = obj
if make_default:
self.default_background = obj
self.invalidate_all()
def load_from_pixbuf(self, pixbuf):
"""Load a document from a pixbuf."""
self.clear()
bbox = self.load_layer_from_pixbuf(pixbuf)
self.set_frame(*bbox)
def is_layered(self):
"""True if there are more than one nonempty layers."""
count = 0
for l in self.layers:
if not l.is_empty():
count += 1
return count > 1
def is_empty(self):
"""True if there is only one layer and it is empty."""
return len(self.layers) == 1 and self.layer.is_empty()
def save(self, filename, **kwargs):
"""Save the document to a file.
:param str filename:
The filename to save to. The extension is used to determine format,
and a ``save_*()`` method is chosen to perform the save.
:param dict kwargs:
Passed on to the chosen save method.
:raise SaveLoadError:
The error string will be set to something descriptive and
presentable to the user.
"""
self.split_stroke()
junk, ext = os.path.splitext(filename)
ext = ext.lower().replace('.', '')
save = getattr(self, 'save_' + ext, self._unsupported)
try:
save(filename, **kwargs)
except gobject.GError, e:
traceback.print_exc()
if e.code == 5:
#add a hint due to a very consfusing error message when there is no space left on device
raise SaveLoadError, _('Unable to save: %s\nDo you have enough space left on the device?') % e.message
else:
raise SaveLoadError, _('Unable to save: %s') % e.message
except IOError, e:
traceback.print_exc()
raise SaveLoadError, _('Unable to save: %s') % e.strerror
self.unsaved_painting_time = 0.0
def load(self, filename, **kwargs):
"""Load the document from a file.
:param str filename:
The filename to load from. The extension is used to determine
format, and a ``load_*()`` method is chosen to perform the load.
:param dict kwargs:
Passed on to the chosen loader method.
:raise SaveLoadError:
The error string will be set to something descriptive and
presentable to the user.
"""
if not os.path.isfile(filename):
raise SaveLoadError, _('File does not exist: %s') % repr(filename)
if not os.access(filename,os.R_OK):
raise SaveLoadError, _('You do not have the necessary permissions to open file: %s') % repr(filename)
junk, ext = os.path.splitext(filename)
ext = ext.lower().replace('.', '')
load = getattr(self, 'load_' + ext, self._unsupported)
try:
load(filename, **kwargs)
except gobject.GError, e:
traceback.print_exc()
raise SaveLoadError, _('Error while loading: GError %s') % e
except IOError, e:
traceback.print_exc()
raise SaveLoadError, _('Error while loading: IOError %s') % e
self.command_stack.clear()
self.unsaved_painting_time = 0.0
self.call_doc_observers()
def _unsupported(self, filename, *args, **kwargs):
raise SaveLoadError, _('Unknown file format extension: %s') % repr(filename)
def render_as_pixbuf(self, *args, **kwargs):
return pixbufsurface.render_as_pixbuf(self, *args, **kwargs)
def render_thumbnail(self):
t0 = time.time()
x, y, w, h = self.get_effective_bbox()
if w == 0 or h == 0:
# workaround to save empty documents
x, y, w, h = 0, 0, tiledsurface.N, tiledsurface.N
mipmap_level = 0
while mipmap_level < tiledsurface.MAX_MIPMAP_LEVEL and max(w, h) >= 512:
mipmap_level += 1
x, y, w, h = x/2, y/2, w/2, h/2
pixbuf = self.render_as_pixbuf(x, y, w, h, mipmap_level=mipmap_level)
assert pixbuf.get_width() == w and pixbuf.get_height() == h
pixbuf = helpers.scale_proportionally(pixbuf, 256, 256)
print 'Rendered thumbnail in', time.time() - t0, 'seconds.'
return pixbuf
def save_png(self, filename, alpha=False, multifile=False, **kwargs):
doc_bbox = self.get_effective_bbox()
if multifile:
self.save_multifile_png(filename, **kwargs)
else:
if alpha:
tmp_layer = layer.Layer()
for l in self.layers:
l.merge_into(tmp_layer)
tmp_layer.save_as_png(filename, *doc_bbox)
else:
pixbufsurface.save_as_png(self, filename, *doc_bbox, alpha=False, **kwargs)
def save_multifile_png(self, filename, alpha=False, **kwargs):
prefix, ext = os.path.splitext(filename)
# if we have a number already, strip it
l = prefix.rsplit('.', 1)
if l[-1].isdigit():
prefix = l[0]
doc_bbox = self.get_effective_bbox()
for i, l in enumerate(self.layers):
filename = '%s.%03d%s' % (prefix, i+1, ext)
l.save_as_png(filename, *doc_bbox, **kwargs)
def load_png(self, filename, feedback_cb=None):
self.clear()
bbox = self.load_layer_from_png(filename, 0, 0, feedback_cb)
self.set_frame(*bbox)
@staticmethod
def _pixbuf_from_stream(fp, feedback_cb=None):
if gui.pygtkcompat.USE_GTK3:
loader = GdkPixbuf.PixbufLoader()
else:
loader = gdk.PixbufLoader()
while True:
if feedback_cb is not None:
feedback_cb()
buf = fp.read(LOAD_CHUNK_SIZE)
if buf == '':
break
loader.write(buf)
loader.close()
return loader.get_pixbuf()
def load_from_pixbuf_file(self, filename, feedback_cb=None):
fp = open(filename, 'rb')
pixbuf = self._pixbuf_from_stream(fp, feedback_cb)
fp.close()
self.load_from_pixbuf(pixbuf)
load_jpg = load_from_pixbuf_file
load_jpeg = load_from_pixbuf_file
def save_jpg(self, filename, quality=90, **kwargs):
x, y, w, h = self.get_effective_bbox()
if w == 0 or h == 0:
x, y, w, h = 0, 0, N, N # allow to save empty documents
pixbuf = self.render_as_pixbuf(x, y, w, h, **kwargs)
options = {"quality": str(quality)}
gui.pygtkcompat.gdk.pixbuf.save(pixbuf, filename, 'jpeg', **options)
save_jpeg = save_jpg
def save_ora(self, filename, options=None, **kwargs):
print 'save_ora:'
t0 = time.time()
tempdir = tempfile.mkdtemp('mypaint')
if not isinstance(tempdir, unicode):
tempdir = tempdir.decode(sys.getfilesystemencoding())
# use .tmp extension, so we don't overwrite a valid file if there is an exception
z = zipfile.ZipFile(filename + '.tmpsave', 'w', compression=zipfile.ZIP_STORED)
# work around a permission bug in the zipfile library: http://bugs.python.org/issue3394
def write_file_str(filename, data):
zi = zipfile.ZipInfo(filename)
zi.external_attr = 0100644 << 16
z.writestr(zi, data)
write_file_str('mimetype', 'image/openraster') # must be the first file
image = ET.Element('image')
stack = ET.SubElement(image, 'stack')
x0, y0, w0, h0 = self.get_effective_bbox()
a = image.attrib
a['w'] = str(w0)
a['h'] = str(h0)
def store_pixbuf(pixbuf, name):
tmp = join(tempdir, 'tmp.png')
t1 = time.time()
gui.pygtkcompat.gdk.pixbuf.save(pixbuf, tmp, 'png')
print ' %.3fs pixbuf saving %s' % (time.time() - t1, name)
z.write(tmp, name)
os.remove(tmp)
def store_surface(surface, name, rect=[]):
tmp = join(tempdir, 'tmp.png')
t1 = time.time()
surface.save_as_png(tmp, *rect, **kwargs)
print ' %.3fs surface saving %s' % (time.time() - t1, name)
z.write(tmp, name)
os.remove(tmp)
def add_layer(x, y, opac, surface, name, layer_name, visible=True,
locked=False, selected=False,
compositeop=DEFAULT_COMPOSITE_OP, rect=[]):
layer = ET.Element('layer')
stack.append(layer)
store_surface(surface, name, rect)
a = layer.attrib
if layer_name:
a['name'] = layer_name
a['src'] = name
a['x'] = str(x)
a['y'] = str(y)
a['opacity'] = str(opac)
if compositeop not in VALID_COMPOSITE_OPS:
compositeop = DEFAULT_COMPOSITE_OP
a['composite-op'] = compositeop
if visible:
a['visibility'] = 'visible'
else:
a['visibility'] = 'hidden'
if locked:
a['edit-locked'] = 'true'
if selected:
a['selected'] = 'true'
return layer
for idx, l in enumerate(reversed(self.layers)):
if l.is_empty():
continue
opac = l.opacity
x, y, w, h = l.get_bbox()
sel = (idx == self.layer_idx)
el = add_layer(x-x0, y-y0, opac, l._surface,
'data/layer%03d.png' % idx, l.name, l.visible,
locked=l.locked, selected=sel,
compositeop=l.compositeop, rect=(x, y, w, h))
# strokemap
sio = StringIO()
l.save_strokemap_to_file(sio, -x, -y)
data = sio.getvalue(); sio.close()
name = 'data/layer%03d_strokemap.dat' % idx
el.attrib['mypaint_strokemap_v2'] = name
write_file_str(name, data)
# save background as layer (solid color or tiled)
bg = self.background
# save as fully rendered layer
x, y, w, h = self.get_bbox()
l = add_layer(x-x0, y-y0, 1.0, bg, 'data/background.png', 'background',
locked=True, selected=False,
compositeop=DEFAULT_COMPOSITE_OP,
rect=(x,y,w,h))
x, y, w, h = bg.get_pattern_bbox()
# save as single pattern (with corrected origin)
store_surface(bg, 'data/background_tile.png', rect=(x+x0, y+y0, w, h))
l.attrib['background_tile'] = 'data/background_tile.png'
# preview (256x256)
t2 = time.time()
print ' starting to render full image for thumbnail...'
thumbnail_pixbuf = self.render_thumbnail()
store_pixbuf(thumbnail_pixbuf, 'Thumbnails/thumbnail.png')
print ' total %.3fs spent on thumbnail' % (time.time() - t2)
helpers.indent_etree(image)
xml = ET.tostring(image, encoding='UTF-8')
write_file_str('stack.xml', xml)
z.close()
os.rmdir(tempdir)
if os.path.exists(filename):
os.remove(filename) # windows needs that
os.rename(filename + '.tmpsave', filename)
print '%.3fs save_ora total' % (time.time() - t0)
return thumbnail_pixbuf
@staticmethod
def __xsd2bool(v):
v = str(v).lower()
if v in ['true', '1']: return True
else: return False
def load_ora(self, filename, feedback_cb=None):
"""Loads from an OpenRaster file"""
print 'load_ora:'
t0 = time.time()
tempdir = tempfile.mkdtemp('mypaint')
if not isinstance(tempdir, unicode):
tempdir = tempdir.decode(sys.getfilesystemencoding())
z = zipfile.ZipFile(filename)
print 'mimetype:', z.read('mimetype').strip()
xml = z.read('stack.xml')
image = ET.fromstring(xml)
stack = image.find('stack')
w = int(image.attrib['w'])
h = int(image.attrib['h'])
def get_pixbuf(filename):
t1 = time.time()
try:
fp = z.open(filename, mode='r')
except KeyError:
# support for bad zip files (saved by old versions of the GIMP ORA plugin)
fp = z.open(filename.encode('utf-8'), mode='r')
print 'WARNING: bad OpenRaster ZIP file. There is an utf-8 encoded filename that does not have the utf-8 flag set:', repr(filename)
res = self._pixbuf_from_stream(fp, feedback_cb)
fp.close()
print ' %.3fs loading %s' % (time.time() - t1, filename)
return res
def get_layers_list(root, x=0,y=0):
res = []
for item in root:
if item.tag == 'layer':
if 'x' in item.attrib:
item.attrib['x'] = int(item.attrib['x']) + x
if 'y' in item.attrib:
item.attrib['y'] = int(item.attrib['y']) + y
res.append(item)
elif item.tag == 'stack':
stack_x = int( item.attrib.get('x', 0) )
stack_y = int( item.attrib.get('y', 0) )
res += get_layers_list(item, stack_x, stack_y)
else:
print 'Warning: ignoring unsupported tag:', item.tag
return res
self.clear() # this leaves one empty layer
no_background = True
self.set_frame(width=w, height=h)
selected_layer = None
for layer in get_layers_list(stack):
a = layer.attrib
if 'background_tile' in a:
assert no_background
try:
print a['background_tile']
self.set_background(get_pixbuf(a['background_tile']))
no_background = False
continue
except backgroundsurface.BackgroundError, e:
print 'ORA background tile not usable:', e
src = a.get('src', '')
if not src.lower().endswith('.png'):
print 'Warning: ignoring non-png layer'
continue
name = a.get('name', '')
x = int(a.get('x', '0'))
y = int(a.get('y', '0'))
opac = float(a.get('opacity', '1.0'))
compositeop = str(a.get('composite-op', DEFAULT_COMPOSITE_OP))
if compositeop not in VALID_COMPOSITE_OPS:
compositeop = DEFAULT_COMPOSITE_OP
selected = self.__xsd2bool(a.get("selected", 'false'))
locked = self.__xsd2bool(a.get("edit-locked", 'false'))
visible = not 'hidden' in a.get('visibility', 'visible')
self.add_layer(insert_idx=0, name=name)
t1 = time.time()
# extract the png form the zip into a file first
# the overhead for doing so seems to be neglegible (around 5%)
z.extract(src, tempdir)
tmp_filename = join(tempdir, src)
self.load_layer_from_png(tmp_filename, x, y, feedback_cb)
os.remove(tmp_filename)
layer = self.layers[0]
self.set_layer_opacity(helpers.clamp(opac, 0.0, 1.0), layer)
self.set_layer_compositeop(compositeop, layer)
self.set_layer_visibility(visible, layer)
self.set_layer_locked(locked, layer)
if selected:
selected_layer = layer
print ' %.3fs loading and converting layer png' % (time.time() - t1)
# strokemap
fname = a.get('mypaint_strokemap_v2', None)
if fname:
if x % N or y % N:
print 'Warning: dropping non-aligned strokemap'
else:
sio = StringIO(z.read(fname))
layer.load_strokemap_from_file(sio, x, y)
sio.close()
if len(self.layers) == 1:
# no assertion (allow empty documents)
print 'Warning: Could not load any layer, document is empty.'
if len(self.layers) > 1:
# remove the still present initial empty top layer
self.select_layer(len(self.layers)-1)
self.remove_layer()
# this leaves the topmost layer selected
if selected_layer is not None:
for i, layer in zip(range(len(self.layers)), self.layers):
if layer is selected_layer:
self.select_layer(i)
break
z.close()
# remove empty directories created by zipfile's extract()
for root, dirs, files in os.walk(tempdir, topdown=False):
for name in dirs:
os.rmdir(os.path.join(root, name))
os.rmdir(tempdir)
print '%.3fs load_ora total' % (time.time() - t0)
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