/usr/share/flowblade/Flowblade/propertyedit.py is in flowblade 0.8.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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Flowblade Movie Editor is a nonlinear video editor.
Copyright 2012 Janne Liljeblad.
This file is part of Flowblade Movie Editor <http://code.google.com/p/flowblade>.
Flowblade Movie Editor 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 3 of the License, or
(at your option) any later version.
Flowblade Movie Editor is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Flowblade Movie Editor. If not, see <http://www.gnu.org/licenses/>.
"""
"""
Module provides wrapper objects for editing property values of objects in
the sequence.
Properties are (name, value, type) tuples that are wrapped in objects
extending AbstractProperty class for editing. These wrappers convert
edit inputs into mlt property values (that effect how sequence is displayed)
and python side values (that are persistant).
"""
import gtk
import appconsts
from editorstate import current_sequence
import keyframeeditor
import mlttransitions
import mltfilters
import propertyparse
import respaths
import utils
# keys meaning of values for this key
RANGE_IN = "range_in" # values define user input range
RANGE_OUT = "range_out" # values define range of output to mlt
STEP = "step" # gtk.Adjustment step_increment value is set using this
EXPRESSION_TYPE = "exptype" # type of string expression used as value
EDITOR = "editor" # editor used to edit property
DISPLAY_NAME = "displayname" # name of property that is displayed to user
MULTIPART_START_PROP = "multistartprop" # Value used to set multipart value at part start
MULTIPART_END_PROP = "multiendprop" # Value used to set multipart value at part end
# ranges values expression is replaced with
NORMALIZED_FLOAT = "NORMALIZED_FLOAT" # range 0.0 - 1.0
# PROP_EXPRESSION values, e.g. "exptype=keyframe_hcs" parsed output
DEFAULT = "default" # value (str(int), str(float) or str(str))
DEFAULT_TRANSITION = "default_transition" # value (str(int), str(float) or str(str))
SINGLE_KEYFRAME = "singlekeyframe" # 0=value
OPACITY_IN_GEOM_SINGLE_KF = "opacity_in_geom_kf_single" # 0=0/0:SCREEN_WIDTHxSCREEN_HEIGHT:opacity
OPACITY_IN_GEOM_KF = "opacity_in_geom_kf" # frame=0/0:SCREEN_WIDTHxSCREEN_HEIGHT:opacity (kf_str;kf_str;kf_str;...;kf_str)
GEOMETRY_OPACITY_KF ="geom_opac_kf" # frame=x/y:widthxheight:opacity
GEOM_IN_AFFINE_FILTER = "geom_in_affine_filt" # x/y:widthxheight:opacity
KEYFRAME_HCS = "keyframe_hcs" # frame=value(;frame=value) HCS = half comma separeted
KEYFRAME_HCS_TRANSITION = "keyframe_hcs_transition" # frame=value(;frame=value) HCS = half comma separeted, used to edit transitions
MULTIPART_KEYFRAME_HCS = "multipart_keyframe" # frame=value(;frame=value) series of mlt.Filter objects that get their properties set, HCS = half comma separeted
FREI_POSITION_HCS = "frei_pos_hcs" # frame=x:y
FREI_GEOM_HCS_TRANSITION = "frei_geom_hcs"; # time=x:y:x_scale:y_scale:rotation:mix
COLOR = "color" # #rrggbb
WIPE_RESOURCE = "wipe_resource" # /path/to/resource.pgm
NOT_PARSED = "not_parsed" # A write out value is not parsed from value
NOT_PARSED_TRANSITION = "not_parsed_transition" # A write out value is not parsed from value in transition object
DEFAULT_STEP = 1.0 # for sliders
def get_filter_editable_properties(clip, filter_object, filter_index,
track, clip_index, compositor_filter=False):
"""
Creates EditableProperty wrappers for all property tuples in a
mltfilters.FilterObject and returns them in array.
"""
editable_properties = []
# Editable properties for normal filters
for i in range(0, len(filter_object.properties)):
p_name, p_value, p_type = filter_object.properties[i]
args_str = filter_object.info.property_args[p_name]
params = (clip, filter_index, (p_name, p_value, p_type), i, args_str)
ep = _create_editable_property(p_type, args_str, params)
ep.is_compositor_filter = compositor_filter
ep.track = track
ep.clip_index = clip_index
editable_properties.append(ep)
# Editable property for multipart filters
if isinstance(filter_object, mltfilters.MultipartFilterObject):
args_str, start_property, end_property = filter_object.info.multipart_desc
property_index = len(editable_properties)
params = (clip, filter_index,
("no dispname given", filter_object.value, appconsts.PROP_EXPRESSION),
property_index, args_str)
ep = _create_editable_property(appconsts.PROP_EXPRESSION, args_str, params)
ep.is_compositor_filter = compositor_filter
ep.track = track
ep.clip_index = clip_index
editable_properties.append(ep)
return editable_properties
def _create_editable_property(p_type, args_str, params):
if p_type == appconsts.PROP_EXPRESSION:
"""
For expressions we can't do straight input output numerical
conversion so we need a extending class for expression type.
"""
args = propertyparse.args_string_to_args_dict(args_str)
exp_type = args[EXPRESSION_TYPE] # 'exptype' arg missing?. if this fails, it's a bug in filters.xml
creator_func = EDITABLE_PROPERTY_CREATORS[exp_type]
ep = creator_func(params)
else:
ep = EditableProperty(params)
return ep
def get_transition_editable_properties(compositor):
"""
Creates AbstractProperty extending wrappers for all property tuples in
mlttransitions.CompositorTransition.
"""
transition = compositor.transition
editable_properties = []
for i in range(0, len(transition.properties)):
p_name, p_value, p_type = transition.properties[i]
args_str = transition.info.property_args[p_name]
params = (compositor, (p_name, p_value, p_type), i, args_str)
if p_type == mltfilters.PROP_EXPRESSION:
"""
For expressions we can't do straight input output numerical
conversion so we need a extending class for expression type.
"""
args = propertyparse.args_string_to_args_dict(args_str)
exp_type = args[EXPRESSION_TYPE] # 'exptype' arg missing?. if this fails, it's a bug in compositors.xml
creator_func = EDITABLE_PROPERTY_CREATORS[exp_type]
ep = creator_func(params)
else:
ep = TransitionEditableProperty(params)
ep.track = None
ep.clip_index = None
editable_properties.append(ep)
return editable_properties
# -------------------------------------------- property wrappers objs
class AbstractProperty:
"""
A base class for all wrappers of property tuples in
mltfilters.FilterObject.properties array and in
mlttransitions.CompositorObject.transition.properties array.
This class converts input to output using set ranges.
Class also creates args name->value dict used by all extending classes
and has default versions of editor component callbacks.
"""
def __init__(self, args_str):
self.args = propertyparse.args_string_to_args_dict(args_str)
self.track = None # set in creator loops
self.clip_index = None # set in creator loops
self.name = None # mlt property name. set by extending classes
self._set_input_range()
self._set_output_range()
def get_display_name(self):
"""
Parses display name from args display_name value by replacing "!" with " ", a hack
"""
try:
disp_name = self.args[DISPLAY_NAME]
return disp_name.replace("!"," ") # We're using space as separator in args
# so names with spaces use letter ! in places where spaces go
except:
return self.name
def _set_input_range(self):
try:
range_in = self.args[RANGE_IN]
except: # not defined, use default
range_in = NORMALIZED_FLOAT
if len(range_in.split(",")) == 2: # comma separated range
vals = range_in.split(",")
self.input_range = (propertyparse.get_args_num_value(vals[0]),
propertyparse.get_args_num_value(vals[1]))
elif range_in == NORMALIZED_FLOAT:
self.input_range = (0.0, 1.0)
def _set_output_range(self):
try:
range_out = self.args[RANGE_OUT]
except: # not defined, use default
range_out = NORMALIZED_FLOAT
if len(range_out.split(",")) == 2: # comma separeated range
vals = range_out.split(",")
self.output_range = (propertyparse.get_args_num_value(vals[0]),
propertyparse.get_args_num_value(vals[1]))
elif range_out == NORMALIZED_FLOAT:
self.output_range = (0.0, 1.0)
def get_out_value(self, in_value):
"""
Converts input value to output value using ranges.
"""
in_l, in_h = self.input_range
out_l, out_h = self.output_range
in_range = in_h - in_l
out_range = out_h - out_l
in_frac = in_value - in_l
in_norm = in_frac / in_range
return out_l + (in_norm * out_range)
def get_current_in_value(self):
"""
Corresponding input value for current self.value
"""
return self.get_in_value(float(self.value))
def get_in_value(self, out_value):
"""
Converts output to input value
"""
in_l, in_h = self.input_range
out_l, out_h = self.output_range
in_range = in_h - in_l
out_range = out_h - out_l
out_frac = propertyparse.get_args_num_value(str(out_value)) - out_l
out_norm = out_frac / out_range
return in_l + (out_norm * in_range)
def get_input_range_adjustment(self):
try:
step = propertyparse.get_args_num_value(self.args[STEP])
except:
step = DEFAULT_STEP
lower, upper = self.input_range
value = self.get_current_in_value()
return gtk.Adjustment(float(value), float(lower), float(upper), float(step))
def adjustment_value_changed(self, adjustment):
value = adjustment.get_value()
out_value = self.get_out_value(value)
str_value = str(out_value)
self.write_value(str_value)
def boolean_button_toggled(self, button):
if button.get_active():
val = "1"
else:
val = "0"
self.write_value(val)
def color_selected(self, color_button):
print "color_selected() not overridden"
def combo_selection_changed(self, combo_box, values):
value = values[combo_box.get_active()]
self.write_value(str(value))
def write_value(self, val):
"""
This has to be overridden by all extending classes.
"""
print "write_value() not overridden"
def write_out_keyframes(self, keyframes):
"""
This has to be overridden by extending classes
edited with keyframe editor.
"""
print "write_out_keyframes() not overridden"
def get_clip_length(self):
return self.clip.clip_out - self.clip.clip_in + 1
def get_clip_tline_pos(self):
return self.track.clip_start(self.clip_index)
def update_clip_index(self):
self.clip_index = self.track.clips.index(self.clip)
def get_pixel_aspect_ratio(self):
return (float(current_sequence().profile.sample_aspect_num()) /
current_sequence().profile.sample_aspect_den())
class EditableProperty(AbstractProperty):
"""
A wrapper for mltfilter.FilterObject.properties array property tuple
and related data that converts user input to
property values.
This class is used for properties of type PROP_INT and PROP_FLOAT.
If property type is PROP_EXPRESSION an extending class is used
to parse value expression from input.
"""
def __init__(self, create_params):
"""
property is tuple from FilterObject.properties array.
args_str is args attribute value from filters.xml.
"""
clip, filter_index, prop, property_index, args_str = create_params
AbstractProperty.__init__(self, args_str)
self.name, self.value, self.type = prop
self.clip = clip
self.filter_index = filter_index #index of param in clip.filters, clip created in sequence.py
self.property_index = property_index # index of property in FilterObject.properties. This is the persistant object
self.is_compositor_filter = False # This is after changed after creation if needed
def _get_filter_object(self):
"""
Filter being edited is in different places for normal filters
and filters that are part of compositors
"""
if self.is_compositor_filter:
return self.clip.compositor.filter
else:
return self.clip.filters[self.filter_index]
def write_value(self, str_value): # overrides ConvertingProperty.write_value(str_value)
self.write_mlt_property_str_value(str_value)
self.value = str_value
self.write_filter_object_property(str_value)
def write_mlt_property_str_value(self, str_value):
# mlt property value
filter_object = self._get_filter_object()
filter_object.mlt_filter.set(str(self.name), str(str_value))
def write_filter_object_property(self, str_value):
# Persistant python object
filter_object = self._get_filter_object()
prop = (str(self.name), str(str_value), self.type)
filter_object.properties[self.property_index] = prop
class TransitionEditableProperty(AbstractProperty):
"""
A wrapper for mlttransitions.CompositorObject.transition.properties
array property tuple and related data that converts user input to
property values.
This class is used for properties of type PROP_INT and PROP_FLOAT.
If property type is PROP_EXPRESSION an extending class is used
to parse value expression from input.
"""
def __init__(self, create_params):
clip, prop, property_index, args_str = create_params
AbstractProperty.__init__(self, args_str)
self.name, self.value, self.type = prop
self.clip = clip # this is actually compositor ducktyping for clip
self.transition = clip.transition # ... is compositor.transition
self.property_index = property_index # index of property in mlttransitions.CompositorObject.transition.properties.
# This is the persistant object
def get_clip_tline_pos(self):
# self.clip is actually compositor ducktyping for clip
return self.clip.clip_in # compositor in and out points staright in timeline frames
def write_value(self, str_value):
self.write_mlt_property_str_value(str_value)
self.value = str_value
self.write_transition_object_property(str_value)
def write_mlt_property_str_value(self, str_value):
self.transition.mlt_transition.set(str(self.name), str(str_value))
def write_transition_object_property(self, str_value):
# Persistant python object
prop = (str(self.name), str(str_value), self.type)
self.transition.properties[self.property_index] = prop
# ----------------------------------------- PROP_EXPRESSION types extending classes
class SingleKeyFrameProperty(EditableProperty):
"""
Converts adjustments to expressions like "0=value" and
crates adjustments from expressions.
"""
def get_input_range_adjustment(self):
try:
step = propertyparse.get_args_num_value(self.args[STEP])
except:
step = DEFAULT_STEP
lower, upper = self.input_range
val = self.value.strip('"')
epxr_sides = val.split("=")
in_value = self.get_in_value(float(epxr_sides[1]))
return gtk.Adjustment(float(in_value), float(lower), float(upper), float(step))
def adjustment_value_changed(self, adjustment):
value = adjustment.get_value()
out_value = self.get_out_value(value)
val_str = "0=" + str(out_value)
self.write_value(val_str)
class AffineFilterGeomProperty(EditableProperty):
"""
Converts values of four sliders to position and size info
"""
def slider_values_changed(self, all_sliders, w):
x_s, y_s, h_s = all_sliders
x = x_s.get_adjustment().get_value()
y = y_s.get_adjustment().get_value()
h = h_s.get_adjustment().get_value()
# x/y:widthxheight:opacity
val_str = str(x) + "/" + str(y) + ":" + str(w) + "x" + str(h) + ":100"
self.write_value(val_str)
class FreiPosHCSFilterProperty(EditableProperty):
def adjustment_value_changed(self, adjustment):
value = adjustment.get_value()
out_value = self.get_out_value(value)
val_str = "0=" + str(out_value)
self.write_value(val_str)
class OpacityInGeomSKFProperty(TransitionEditableProperty):
"""
Converts adjustments to expressions like "0/0:720x576:76" for
opacity of 76% and creates adjustments from expressions.
Only opacity part is edited.
"""
def __init__(self, params):
TransitionEditableProperty.__init__(self, params)
clip, property, property_index, args_str = params
name, value, type = property
self.value_parts = value.split(":")
def get_input_range_adjustment(self):
try:
step = propertyparse.get_args_num_value(self.args[STEP])
except:
step = DEFAULT_STEP
lower, upper = self.input_range
in_value = self.get_in_value(float(self.value_parts[2]))
return gtk.Adjustment(float(in_value), float(lower), float(upper), float(step))
def adjustment_value_changed(self, adjustment):
value = adjustment.get_value()
out_value = self.get_out_value(value)
val_str = self.value_parts[0] + ":" + self.value_parts[1] + ":" + str(out_value)
self.write_value(val_str)
class OpacityInGeomKeyframeProperty(TransitionEditableProperty):
def __init__(self, params):
TransitionEditableProperty.__init__(self, params)
clip, property, property_index, args_str = params
name, value, type = property
# We need values of first keyframe for later
key_frames = value.split(";")
self.value_parts = key_frames[0].split(":")
self.screen_size_str = self.value_parts[1]
def get_input_range_adjustment(self):
# initial opacity value
try:
step = propertyparse.get_args_num_value(self.args[STEP])
except:
step = DEFAULT_STEP
lower, upper = self.input_range
in_value = self.get_in_value(float(self.value_parts[2]))
return gtk.Adjustment(float(in_value), float(lower), float(upper), float(step))
def write_out_keyframes(self, keyframes):
# key frame array of tuples (frame, opacity)
val_str = ""
for kf in keyframes:
frame, opac = kf
val_str += str(int(frame)) + "=" # frame
val_str += "0/0:" # pos
val_str += str(self.screen_size_str) + ":" # size
val_str += str(self.get_out_value(opac)) + ";" # opac with converted range from slider
val_str = val_str.strip(";")
self.write_value(val_str)
class KeyFrameGeometryOpacityProperty(TransitionEditableProperty):
"""
Converts user edits to expressions like "12=11/21:720x576:76" for
to keyframes for position scale and opacity.
"""
def __init__(self, params):
TransitionEditableProperty.__init__(self, params)
def get_input_range_adjustment(self):
# This is used for opacity slider
try:
step = propertyparse.get_args_num_value(self.args[STEP])
except:
step = DEFAULT_STEP
lower, upper = self.input_range
return gtk.Adjustment(float(1.0), float(lower), float(upper), float(step)) # Value set later to first kf value
def write_out_keyframes(self, keyframes):
# key frame array of tuples (frame, [x, y, width, height], opacity)
val_str = ""
for kf in keyframes:
frame, rect, opac = kf
val_str += str(int(frame)) + "=" # frame
val_str += str(int(rect[0])) + "/" + str(int(rect[1])) + ":" # pos
val_str += str(int(rect[2])) + "x" + str(int(rect[3])) + ":" # size
val_str += str(self.get_out_value(opac)) + ";" # opac with converted range from slider
val_str = val_str.strip(";")
self.write_value(val_str)
class FreiGeomHCSTransitionProperty(TransitionEditableProperty):
def __init__(self, params):
TransitionEditableProperty.__init__(self, params)
class KeyFrameHCSFilterProperty(EditableProperty):
"""
Coverts array of keyframe tuples to string of type "0=0.2;123=0.143"
"""
def get_input_range_adjustment(self):
try:
step = propertyparse.get_args_num_value(self.args[STEP])
except:
step = DEFAULT_STEP
lower, upper = self.input_range
return gtk.Adjustment(float(0.1), float(lower), float(upper), float(step)) # Value set later to first kf value
def write_out_keyframes(self, keyframes):
val_str = ""
for kf in keyframes:
frame, val = kf
val_str += str(frame) + "=" + str(self.get_out_value(val)) + ";"
val_str = val_str.strip(";")
self.write_value(val_str)
class KeyFrameHCSTransitionProperty(TransitionEditableProperty):
"""
Coverts array of keyframe tuples to string of type "0=0.2;123=0.143"
"""
def __init__(self, params):
TransitionEditableProperty.__init__(self, params)
def get_input_range_adjustment(self):
try:
step = propertyparse.get_args_num_value(self.args[STEP])
except:
step = DEFAULT_STEP
lower, upper = self.input_range
return gtk.Adjustment(float(0.1), float(lower), float(upper), float(step)) # Value set later to first kf value
def write_out_keyframes(self, keyframes):
val_str = ""
for kf in keyframes:
frame, val = kf
val_str += str(frame) + "=" + str(self.get_out_value(val)) + ";"
val_str = val_str.strip(";")
self.write_value(val_str)
class ColorProperty(EditableProperty):
"""
Gives value as gdk color for gui and writes out color as
different type of hex to mlt
"""
def get_value_as_gdk_color(self):
raw_r, raw_g, raw_b = utils.hex_to_rgb(self.value)
return gtk.gdk.Color(red=(float(raw_r)/255.0),
green=(float(raw_g)/255.0),
blue=(float(raw_b)/255.0))
def color_selected(self, color_button):
color = color_button.get_color()
value = utils.hex_to_rgb(color.to_string())
raw_r, raw_g, raw_b = value
val_str = "#" + utils.int_to_hex(int((float(raw_r) * 255.0) / 65535.0)) + \
utils.int_to_hex(int((float(raw_g) * 255.0) / 65535.0)) + \
utils.int_to_hex(int((float(raw_b) * 255.0) / 65535.0))
self.write_value(val_str)
class WipeResourceProperty(TransitionEditableProperty):
"""
Converts user combobox selections to absolute paths containing wipe
resource images.
"""
def __init__(self, params):
TransitionEditableProperty.__init__(self, params)
def combo_selection_changed(self, combo_box, keys):
key = keys[combo_box.get_active()]
res_path = mlttransitions.get_wipe_resource_path(key)
self.write_value(str(res_path))
class MultipartKeyFrameProperty(AbstractProperty):
def __init__(self, params):
clip, filter_index, property, property_index, args_str = params
AbstractProperty.__init__(self, args_str)
self.name, self.value, self.type = property
self.clip = clip
self.filter_index = filter_index #index of param in clip.filters, clip created in sequence.py
self.property_index = property_index # index of property in FilterObject.properties. This is the persistant object
self.is_compositor_filter = False # This is after changed after creation if needed
def get_input_range_adjustment(self):
try:
step = propertyparse.get_args_num_value(self.args[STEP])
except:
step = DEFAULT_STEP
lower, upper = self.input_range
## stuff missing for load
return gtk.Adjustment(float(0.1), float(lower), float(upper), float(step)) # Value set later to first kf value
def write_out_keyframes(self, keyframes):
val_str = ""
for kf in keyframes:
frame, val = kf
val_str += str(frame) + "=" + str(self.get_out_value(val)) + ";"
val_str = val_str.strip(";")
self.value = val_str
filter_object = self.clip.filters[self.filter_index]
filter_object.update_value(val_str, self.clip, current_sequence().profile)
# ------------------------------------------ creator func dicts
# dict EXPRESSION_TYPE args value -> class extending AbstractProperty
# Note: HCS means half comma separated
EDITABLE_PROPERTY_CREATORS = { \
DEFAULT:lambda params : EditableProperty(params),
DEFAULT_TRANSITION:lambda params : TransitionEditableProperty(params),
SINGLE_KEYFRAME:lambda params: SingleKeyFrameProperty(params),
OPACITY_IN_GEOM_SINGLE_KF: lambda params : OpacityInGeomSKFProperty(params),
OPACITY_IN_GEOM_KF: lambda params : OpacityInGeomKeyframeProperty(params),
KEYFRAME_HCS: lambda params : KeyFrameHCSFilterProperty(params),
FREI_POSITION_HCS: lambda params : FreiPosHCSFilterProperty(params),
FREI_GEOM_HCS_TRANSITION: lambda params : FreiGeomHCSTransitionProperty(params),
KEYFRAME_HCS_TRANSITION: lambda params : KeyFrameHCSTransitionProperty(params),
MULTIPART_KEYFRAME_HCS: lambda params : MultipartKeyFrameProperty(params),
COLOR: lambda params : ColorProperty(params),
GEOMETRY_OPACITY_KF: lambda params : KeyFrameGeometryOpacityProperty(params),
GEOM_IN_AFFINE_FILTER: lambda params : AffineFilterGeomProperty(params),
WIPE_RESOURCE : lambda(params) : WipeResourceProperty(params),
NOT_PARSED : lambda(params) : EditableProperty(params), # This should only be used with params that have editor=NO_EDITOR
NOT_PARSED_TRANSITION : lambda(params) : TransitionEditableProperty(params) } # This should only be used with params that have editor=NO_EDITOR
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