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#***************************************************************************
#* *
#* Copyright (c) 2015 - Victor Titov (DeepSOIC) *
#* <vv.titov@gmail.com> *
#* *
#* This program is free software; you can redistribute it and/or modify *
#* it under the terms of the GNU Lesser General Public License (LGPL) *
#* as published by the Free Software Foundation; either version 2 of *
#* the License, or (at your option) any later version. *
#* for detail see the LICENCE text file. *
#* *
#* 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 Library General Public License for more details. *
#* *
#* You should have received a copy of the GNU Library General Public *
#* License along with this program; if not, write to the Free Software *
#* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
#* USA *
#* *
#***************************************************************************
from lattice2Common import *
import lattice2BaseFeature
import lattice2Executer
import lattice2CompoundExplorer as LCE
from lattice2BoundBox import getPrecisionBoundBox #needed for alignment
import FreeCAD as App
import Part
__title__="BoundingBox module for FreeCAD"
__author__ = "DeepSOIC"
__url__ = ""
def findFont(font_file_name):
'''checks for existance of the file in a few locations and returns the full path of the first one found'''
import os
if os.path.isabs(font_file_name):
if not os.path.exists(font_file_name):
raise ValueError("Font file not found: " + font_file_name )
return font_file_name
dirlist = [] #list of directories to probe
import lattice2Dummy
lattice_path = os.path.dirname(lattice2Dummy.__file__)
dirlist.append(lattice_path + "/fonts")
if len(App.ActiveDocument.FileName) > 0:
dirlist.append(os.path.dirname(App.ActiveDocument.FileName))
dirlist.append(os.path.abspath(os.curdir))
#todo: figure out the path to system fonts, and add it here
#do the probing
for _dir in dirlist:
if os.path.exists(_dir + "/" + font_file_name):
return _dir + "/" + font_file_name
raise ValueError("Font file not found: "+font_file_name +". Locations probed: \n"+'\n'.join(dirlist))
# -------------------------- document object --------------------------------------------------
def makeLatticeShapeString(name):
'''makeBoundBox(name): makes a BoundBox object.'''
typ = 'Part::Part2DObjectPython' if activeBody() else 'Part::FeaturePython'
obj = FreeCAD.ActiveDocument.addObject(typ, name)
LatticeShapeString(obj)
if FreeCAD.GuiUp:
ViewProviderLatticeShapeString(obj.ViewObject)
return obj
class FoolFeatureDocumentObject:
'''A class that is to be fed to Draft ShapeString object instead of a real one, to obtain shapes it generates'''
def __init__(self):
self.Placement = App.Placement()
self.Shape = Part.Shape()
self.properties = []
self.Proxy = None
def addProperty(self, proptype, propname, group = None, hint = None):
setattr(self,propname,None)
self.properties.append((proptype, propname, group, hint))
def positionBySupport(self):
return False
class LatticeShapeString:
"The LatticeShapeString object"
def __init__(self,obj):
self.Type = "LatticeShapeString"
#initialize accompanying Draft ShapeString
self.makeFoolObj(obj)
foolObj = self.foolObj
#add Draft ShapeString's properties to document object in posession of our LatticeShapeString
for (proptype, propname, group, hint) in foolObj.properties:
if propname != "String": #we'll define our own string property
obj.addProperty(proptype,propname,"Lattice ShapeString",hint)
obj.addProperty("App::PropertyLink","ArrayLink","Lattice ShapeString","array to use for the shapestring")
obj.addProperty("App::PropertyStringList","Strings","Lattice ShapeString","Strings to put at each placement.")
obj.addProperty("App::PropertyEnumeration","XAlign","Lattice ShapeString","Horizontal alignment of individual strings")
obj.XAlign = ['None','Left','Right','Middle']
obj.addProperty("App::PropertyEnumeration","YAlign","Lattice ShapeString","Vertical alignment of individual strings")
obj.YAlign = ['None','Top','Bottom','Middle']
obj.addProperty("App::PropertyBool","AlignPrecisionBoundBox","Lattice ShapeString","Use precision bounding box for alignment. Warning: slow!")
obj.addProperty("App::PropertyFile","FullPathToFont","Lattice ShapeString","Full path of font file that is actually being used.")
obj.setEditorMode("FullPathToFont", 1) # set read-only
obj.Proxy = self
self.setDefaults(obj)
def makeFoolObj(self,obj):
'''Makes an object that mimics a Part::FeaturePython, and makes a Draft
ShapeString object on top of it. Both are added as attributes to self.
This is needed to re-use Draft ShapeString'''
if hasattr(self, "foolObj"):
return
foolObj = FoolFeatureDocumentObject()
from Draft import _ShapeString
self.draft_shape_string = _ShapeString(foolObj)
self.foolObj = foolObj
def setDefaults(self, obj):
'''initializes the properties, so that LatticeShapeString can be used with no initial fiddling'''
obj.FontFile = "FreeUniversal-Regular.ttf"
obj.Size = 10
obj.Tracking = 0
obj.Strings = ['string1','string2']
def execute(self,obj):
nOfStrings = len(obj.Strings)
lattice = screen(obj.ArrayLink)
if lattice is None:
plms = [App.Placement() for i in range(0,nOfStrings)]
else:
if not lattice2BaseFeature.isObjectLattice(lattice):
lattice2Executer.warning(obj,"ShapeString's link to array must point to a lattice. It points to a generic shape. Results may be unexpected.")
leaves = LCE.AllLeaves(lattice.Shape)
plms = [leaf.Placement for leaf in leaves]
#update foolObj's properties
self.makeFoolObj(obj) #make sure we have one - fixes defunct Lattice ShapeString after save-load
for (proptype, propname, group, hint) in self.foolObj.properties:
if propname != "String": #ignore "String", that will be taken care of in the following loop
setattr(self.foolObj, propname, getattr(obj, propname))
self.foolObj.FontFile = findFont(obj.FontFile)
obj.FullPathToFont = self.foolObj.FontFile
shapes = []
for i in range( 0 , min(len(plms),len(obj.Strings)) ):
if len(obj.Strings[i]) > 0:
#generate shapestring using Draft
self.foolObj.String = obj.Strings[i]
self.foolObj.Shape = None
self.draft_shape_string.execute(self.foolObj)
shape = self.foolObj.Shape
#calculate alignment point
if obj.XAlign == 'None' and obj.YAlign == 'None':
pass #need not calculate boundbox
else:
if obj.AlignPrecisionBoundBox:
bb = getPrecisionBoundBox(shape)
else:
bb = shape.BoundBox
alignPnt = App.Vector()
if obj.XAlign == 'Left':
alignPnt.x = bb.XMin
elif obj.XAlign == 'Right':
alignPnt.x = bb.XMax
elif obj.XAlign == 'Middle':
alignPnt.x = bb.Center.x
if obj.YAlign == 'Bottom':
alignPnt.y = bb.YMin
elif obj.YAlign == 'Top':
alignPnt.y = bb.YMax
elif obj.YAlign == 'Middle':
alignPnt.y = bb.Center.y
#Apply alignment
shape.Placement = App.Placement(alignPnt*(-1.0), App.Rotation()).multiply(shape.Placement)
#Apply placement from array
shape.Placement = plms[i].multiply(shape.Placement)
shapes.append(shape.copy())
if len(shapes) == 0:
scale = 1.0
if lattice is not None:
scale = lattice.Shape.BoundBox.DiagonalLength/math.sqrt(3)/math.sqrt(len(shps))
if scale < DistConfusion * 100:
scale = 1.0
obj.Shape = markers.getNullShapeShape(scale)
raise ValueError('No strings were converted into shapes') #Feeding empty compounds to FreeCAD seems to cause rendering issues, otherwise it would have been a good idea to output nothing.
obj.Shape = Part.makeCompound(shapes)
def __getstate__(self):
return None
def __setstate__(self,state):
return None
class ViewProviderLatticeShapeString:
"A View Provider for the LatticeShapeString object"
def __init__(self,vobj):
vobj.Proxy = self
def getIcon(self):
return getIconPath("Lattice2_ShapeString.svg")
def attach(self, vobj):
self.ViewObject = vobj
self.Object = vobj.Object
def __getstate__(self):
return None
def __setstate__(self,state):
return None
def CreateLatticeShapeString(name):
sel = FreeCADGui.Selection.getSelectionEx()
FreeCAD.ActiveDocument.openTransaction("Create LatticeShapeString")
FreeCADGui.addModule("lattice2ShapeString")
FreeCADGui.addModule("lattice2Executer")
FreeCADGui.doCommand("f = lattice2ShapeString.makeLatticeShapeString(name='"+name+"')")
if len(sel) == 1:
FreeCADGui.doCommand("f.ArrayLink = FreeCADGui.Selection.getSelection()[0]")
FreeCADGui.doCommand("lattice2Executer.executeFeature(f)")
FreeCADGui.doCommand("f = None")
FreeCAD.ActiveDocument.commitTransaction()
# -------------------------- /common stuff --------------------------------------------------
# -------------------------- Gui command --------------------------------------------------
class _CommandLatticeShapeString:
"Command to create LatticeShapeString feature"
def GetResources(self):
return {'Pixmap' : getIconPath("Lattice2_ShapeString.svg"),
'MenuText': QtCore.QT_TRANSLATE_NOOP("Lattice2_ShapeString","ShapeString for arraying"),
'Accel': "",
'ToolTip': QtCore.QT_TRANSLATE_NOOP("Lattice2_ShapeString","Make strings at given placements")}
def Activated(self):
if len(FreeCADGui.Selection.getSelection()) == 0 or len(FreeCADGui.Selection.getSelection()) == 1:
CreateLatticeShapeString(name = "Strings")
else:
mb = QtGui.QMessageBox()
mb.setIcon(mb.Icon.Warning)
mb.setText(translate("Lattice2_ShapeString", "Either select nothing, or just one lattice object! You seem to have more than one object selected.", None))
mb.setWindowTitle(translate("Lattice2_ShapeString","Bad selection", None))
mb.exec_()
def IsActive(self):
if FreeCAD.ActiveDocument:
return True
else:
return False
if FreeCAD.GuiUp:
FreeCADGui.addCommand('Lattice2_ShapeString', _CommandLatticeShapeString())
exportedCommands = ['Lattice2_ShapeString']
# -------------------------- /Gui command --------------------------------------------------
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