Files
create/src/Mod/Draft/draftviewproviders/view_text.py
vocx-fc 08069a89eb Draft: add modules of draftviewproviders to the proper Doxygen group
This includes `view_array`, `view_base`, `view_bezcurve`,
`view_bspline`, `view_circulararray`, `view_clone`, `view_dimension`,
`view_draft_annotation`, `view_draftlink`, `view_facebinder`,
`view_fillet`, `view_label`, `view_orthoarray`, `view_point`,
`view_polararray`, `view_rectangle`, `view_text`, `view_wire`,
`view_wpproxy`.

These are added to the `draftviewproviders` Doxygen group
so that the functions and classes contained in each module
are listed appropriately in the automatically generated
documentation.
2020-07-17 13:01:45 +02:00

230 lines
9.8 KiB
Python

# ***************************************************************************
# * Copyright (c) 2009, 2010 Yorik van Havre <yorik@uncreated.net> *
# * Copyright (c) 2009, 2010 Ken Cline <cline@frii.com> *
# * Copyright (c) 2020 Eliud Cabrera Castillo <e.cabrera-castillo@tum.de> *
# * *
# * This file is part of the FreeCAD CAx development system. *
# * *
# * 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. *
# * *
# * FreeCAD 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 FreeCAD; if not, write to the Free Software *
# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
# * USA *
# * *
# ***************************************************************************
"""Provides the viewprovider code for the Text object."""
## @package view_text
# \ingroup draftviewproviders
# \brief Provides the viewprovider code for the Text object.
## \addtogroup draftviewproviders
# @{
import pivy.coin as coin
import sys
from PySide.QtCore import QT_TRANSLATE_NOOP
import draftutils.utils as utils
from draftviewproviders.view_draft_annotation \
import ViewProviderDraftAnnotation
class ViewProviderText(ViewProviderDraftAnnotation):
"""Viewprovider for the Draft Text annotation."""
def __init__(self, vobj):
super(ViewProviderText, self).__init__(vobj)
self.set_properties(vobj)
self.Object = vobj.Object
vobj.Proxy = self
def set_properties(self, vobj):
"""Set the properties only if they don't already exist."""
super(ViewProviderText, self).set_properties(vobj)
properties = vobj.PropertiesList
if "FontSize" not in properties:
_tip = QT_TRANSLATE_NOOP("App::Property",
"The size of the text")
vobj.addProperty("App::PropertyLength",
"FontSize",
"Text",
_tip)
vobj.FontSize = utils.get_param("textheight", 1)
if "FontName" not in properties:
_tip = QT_TRANSLATE_NOOP("App::Property",
"The font of the text")
vobj.addProperty("App::PropertyFont",
"FontName",
"Text",
_tip)
vobj.FontName = utils.get_param("textfont", "sans")
if "Justification" not in properties:
_tip = QT_TRANSLATE_NOOP("App::Property",
"The vertical alignment of the text")
vobj.addProperty("App::PropertyEnumeration",
"Justification",
"Text",
_tip)
vobj.Justification = ["Left", "Center", "Right"]
if "TextColor" not in properties:
_tip = QT_TRANSLATE_NOOP("App::Property",
"Text color")
vobj.addProperty("App::PropertyColor",
"TextColor",
"Text",
_tip)
if "LineSpacing" not in properties:
_tip = QT_TRANSLATE_NOOP("App::Property",
"Line spacing (relative to font size)")
vobj.addProperty("App::PropertyFloat",
"LineSpacing",
"Text",
_tip)
def getIcon(self):
"""Return the path to the icon used by the view provider."""
return ":/icons/Draft_Text.svg"
def claimChildren(self):
"""Return objects that will be placed under it in the tree view."""
return []
def attach(self, vobj):
"""Set up the scene sub-graph of the view provider."""
# Main attributes of the Coin scenegraph
self.mattext = coin.SoMaterial()
self.trans = coin.SoTransform()
self.font = coin.SoFont()
self.text2d = coin.SoText2() # Faces the camera always
self.text3d = coin.SoAsciiText() # Can be oriented in 3D space
textdrawstyle = coin.SoDrawStyle()
textdrawstyle.style = coin.SoDrawStyle.FILLED
# The text string needs to be initialized to something,
# otherwise it may crash
self.text2d.string = self.text3d.string = "Label"
self.text2d.justification = coin.SoText2.LEFT
self.text3d.justification = coin.SoAsciiText.LEFT
self.node2d = coin.SoGroup()
self.node2d.addChild(self.trans)
self.node2d.addChild(self.mattext)
self.node2d.addChild(textdrawstyle)
self.node2d.addChild(self.font)
self.node2d.addChild(self.text2d)
self.node3d = coin.SoGroup()
self.node3d.addChild(self.trans)
self.node3d.addChild(self.mattext)
self.node3d.addChild(textdrawstyle)
self.node3d.addChild(self.font)
self.node3d.addChild(self.text3d)
vobj.addDisplayMode(self.node2d, "2D text")
vobj.addDisplayMode(self.node3d, "3D text")
self.onChanged(vobj, "TextColor")
self.onChanged(vobj, "FontSize")
self.onChanged(vobj, "FontName")
self.onChanged(vobj, "Justification")
self.onChanged(vobj, "LineSpacing")
self.onChanged(vobj, "ScaleMultiplier")
def getDisplayModes(self, vobj):
"""Return the display modes that this viewprovider supports."""
return ["2D text", "3D text"]
def setDisplayMode(self, mode):
"""Return the saved display mode."""
return mode
def updateData(self, obj, prop):
"""Execute when a property from the Proxy class is changed."""
if prop == "Text" and obj.Text:
self.text2d.string.setValue("")
self.text3d.string.setValue("")
if sys.version_info.major >= 3:
_list = [l for l in obj.Text if l]
else:
_list = [l.encode("utf8") for l in obj.Text if l]
self.text2d.string.setValues(_list)
self.text3d.string.setValues(_list)
elif prop == "Placement":
self.trans.translation.setValue(obj.Placement.Base)
self.trans.rotation.setValue(obj.Placement.Rotation.Q)
def onChanged(self, vobj, prop):
"""Execute when a view property is changed."""
super(ViewProviderText, self).onChanged(vobj, prop)
properties = vobj.PropertiesList
if (prop == "ScaleMultiplier" and "ScaleMultiplier" in properties
and vobj.ScaleMultiplier):
if "FontSize" in properties:
self.font.size = vobj.FontSize.Value * vobj.ScaleMultiplier
elif prop == "TextColor" and "TextColor" in properties:
col = vobj.TextColor
self.mattext.diffuseColor.setValue([col[0], col[1], col[2]])
elif prop == "FontName" and "FontName" in properties:
self.font.name = vobj.FontName.encode("utf8")
elif (prop == "FontSize" and "FontSize" in properties
and "ScaleMultiplier" in properties and vobj.ScaleMultiplier):
# In v0.19 this code causes an `AttributeError` exception
# during loading of the document as `ScaleMultiplier`
# apparently isn't set immediately when the document loads.
# So the if condition tests for the existence
# of `ScaleMultiplier` before even changing the font size.
# A try-except block may be used as well to catch and ignore
# this error.
self.font.size = vobj.FontSize.Value * vobj.ScaleMultiplier
elif prop == "Justification" and "Justification" in properties:
# This code was surrounded by a try-except block in order to catch
# and ignore an `AssertionError` exception. This was the result
# of a race condition that would result in the `Justification`
# property not being set at the time that this code is invoked.
# However, in v0.19 this problem doesn't seem to exist any more
# so we removed the try-except block.
if vobj.Justification == "Left":
self.text2d.justification = coin.SoText2.LEFT
self.text3d.justification = coin.SoAsciiText.LEFT
elif vobj.Justification == "Right":
self.text2d.justification = coin.SoText2.RIGHT
self.text3d.justification = coin.SoAsciiText.RIGHT
else:
self.text2d.justification = coin.SoText2.CENTER
self.text3d.justification = coin.SoAsciiText.CENTER
elif prop == "LineSpacing" and "LineSpacing" in properties:
self.text2d.spacing = vobj.LineSpacing
self.text3d.spacing = vobj.LineSpacing
# Alias for compatibility with v0.18 and earlier
ViewProviderDraftText = ViewProviderText
## @}