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####################################################################################################
#
# Patro - A Python library to make patterns for fashion design
# Copyright (C) 2017 Fabrice Salvaire
#
# 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 3 of the License, or
# (at your option) any later version.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
#
####################################################################################################
"""
"""
####################################################################################################
import logging
from Patro.GeometryEngine.Vector import Vector2D
from Patro.GraphicEngine.GraphicScene.GraphicItem import GraphicStyle, Font
from Patro.GraphicEngine.GraphicScene.Scene import GraphicScene
from . import SketchOperation
from .Calculator import Calculator
####################################################################################################
_module_logger = logging.getLogger(__name__)
####################################################################################################
class Sketch:
# Fixme:
# do we want to have several sketches
# apply a transformation
# share points
_logger = _module_logger.getChild('Sketch')
##############################################
def __init__(self, pattern):
self._pattern = pattern
self._calculator = Calculator(self.measurements)
self._operations = []
self._operation_dict = {}
##############################################
@property
def pattern(self):
return self._pattern
@property
def measurements(self):
return self._pattern.measurements
@property
def calculator(self):
return self._calculator
@property
def unit(self):
return self._pattern.unit
##############################################
@property
def operations(self):
return self._operations
##############################################
def _add_operation(self, operation):
# Works as a post init
self._operations.append(operation)
# Fixme: operation id, only for valentina ?
self._operation_dict[operation.id] = operation
if hasattr(operation, 'name'):
self._operation_dict[operation.name] = operation
##############################################
def has_operation_id(self, id):
return id in self._operation_dict
##############################################
def get_operation(self, id):
return self._operation_dict[id]
##############################################
def eval(self):
self._logger.info('Eval all operations')
for operation in self._operations:
if isinstance(operation, SketchOperation.Point):
self._calculator.add_point(operation)
operation.eval()
elif isinstance(operation, SketchOperation.SimpleInteractiveSpline):
operation.eval() # for control points
else:
pass
operation.connect_ancestor_for_expressions()
##############################################
def dump(self):
print("\nDump operations:")
for operation in self._operations:
if isinstance(operation, SketchOperation.Point):
print(operation, operation.vector)
else:
print(operation)
for dependency in operation.dependencies:
print(' ->', dependency)
##############################################
@property
def bounding_box(self):
"""Compute the bounding box of the pattern."""
# Fixme: to function
# cache ???
bounding_box = None
for operation in self._operations:
interval = operation.geometry().bounding_box
if bounding_box is None:
bounding_box = interval
else:
bounding_box |= interval
return bounding_box
##############################################
def _operation_to_path_style(self, operation, **kwargs):
"""Generate a :class:`GraphicStyle` instance for a operation"""
return GraphicStyle(
stroke_style=operation.line_style,
stroke_color=operation.line_color,
**kwargs
)
##############################################
def detail_scene(self, scene_cls=GraphicScene):
"""Generate a graphic scene for the detail mode
Scene class can be customised using the *scene_cls* parameter.
"""
scene = scene_cls()
# Fixme: scene bounding box
scene.bounding_box = self.bounding_box
# Fixme: implement a transformer class to prevent if ... ?
font = Font('', 16)
for operation in self._operations:
if isinstance(operation, SketchOperation.Point):
# Register coordinate
scene.add_coordinate(operation.name, operation.vector)
# Draw point and label
scene.circle(operation.name, '1pt',
GraphicStyle(fill_color='black'),
user_data=operation,
)
label_offset = operation.label_offset
offset = Vector2D(label_offset.x, -label_offset.y) # Fixme: ???
label_position = operation.vector + offset
if offset:
# arrow must point to the label center and be clipped
scene.segment(operation.vector, label_position,
GraphicStyle(line_width='.5pt'),
user_data=operation,
)
scene.text(label_position, operation.name, font, user_data=operation)
if isinstance(operation, SketchOperation.LinePropertiesMixin):
path_style = self._operation_to_path_style(operation, line_width='2pt')
if isinstance(operation, SketchOperation.AlongLinePoint):
scene.segment(operation.first_point.name, operation.name,
path_style,
user_data=operation,
)
elif isinstance(operation, SketchOperation.EndLinePoint):
scene.segment(operation.base_point.name, operation.name,
path_style,
user_data=operation,
)
# elif isinstance(operation, LineIntersectPoint):
# scene.segment(operation.point1_line1.name, operation.name, path_style)
# source += r'\draw[{0}] ({1.point1_line1.name}) -- ({1.name});'.format(style, operation) + '\n'
elif isinstance(operation, SketchOperation.NormalPoint):
scene.segment(operation.first_point.name, operation.name,
path_style,
user_data=operation,
)
# Draw path item like segments and Bézier curves
elif isinstance(operation, SketchOperation.Line):
path_style = self._operation_to_path_style(operation, line_width='4pt')
scene.segment(operation.first_point.name, operation.second_point.name,
path_style,
user_data=operation,
)
elif isinstance(operation, SketchOperation.SimpleInteractiveSpline):
path_style = self._operation_to_path_style(operation, line_width='4pt')
scene.cubic_bezier(operation.first_point.name,
operation.control_point1, operation.control_point2,
operation.second_point.name,
path_style,
user_data=operation,
)
return scene