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#------------------------------------------------------------------------------
# This file is part of the OpenStructure project <www.openstructure.org>
#
# Copyright (C) 2008-2020 by the OpenStructure authors
#
# This library is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation; either version 3.0 of the License, or (at your option)
# any later version.
# This library 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this library; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
#------------------------------------------------------------------------------
# -*- coding: utf-8 -*-
from ost import gui
from ost import gfx
from ost import info
from PyQt5 import QtCore, QtWidgets, QtGui
#Gradient Editor
class ImmutableGradientInfoHandler:
def __init__(self, fileName):
self.FILE_NAME = fileName
self.GRADIENTS_GROUP_NAME = "Gradients"
self.GRADIENT_GROUP_NAME = "Gradient"
self.NAME_ATTRIBUTE_NAME = "Name"
self.handle_ = info.LoadOrCreateInfo(self.FILE_NAME)
self.root_ = self.handle_.Root()
self.gradients_ = self.root_.RetrieveGroup(self.GRADIENTS_GROUP_NAME)
def GetGfxGradient(self, name):
group = self.gradients_.GetGroup(name)
gfx_gradient = gfx.Gradient.GradientFromInfo(group)
return gfx_gradient
def GetQGradient(self, name):
gfx_gradient = self.GetGfxGradient(name)
return ImmutableGradientInfoHandler.ConvertToQGradient(gfx_gradient)
def GetQGradients(self):
group_list = self.gradients_.GetGroups(self.GRADIENT_GROUP_NAME)
q_gradients = dict()
for group in group_list:
if group.HasAttribute(self.NAME_ATTRIBUTE_NAME):
gfx_gradient = gfx.Gradient.GradientFromInfo(group)
q_gradients[group.GetAttribute(self.NAME_ATTRIBUTE_NAME)] = (ImmutableGradientInfoHandler.ConvertToQGradient(gfx_gradient))
return q_gradients
@staticmethod
def ConvertToQGradient(gfx_gradient):
stops = gfx_gradient.GetStops()
qgrad = QtGui.QLinearGradient()
for stop in stops:
color = stop.GetColor()
qcolor = QtGui.QColor(int(color.Red()*255),
int(color.Green()*255),
int(color.Blue()*255),
int(color.Alpha()*255))
qgrad.setColorAt(stop.GetRel(), qcolor)
return qgrad
@staticmethod
def ConvertToGfxGradient(gradient):
gfx_gradient = gfx.Gradient()
for s in gradient.stops():
rel=s[0]
color=s[1]
gfx_gradient.SetColorAt(s[0], gfx.RGB(s[1].redF(), s[1].greenF(), s[1].blueF()));
return gfx_gradient;
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