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# This file is part of the qpopplerview package.
#
# Copyright (c) 2010 - 2014 by Wilbert Berendsen
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# See http://www.gnu.org/licenses/ for more information.
"""
Rendering Poppler (PDF) documents helper stuff.
"""
class RenderOptions(object):
"""Manages rendering options."""
def __init__(self):
self._renderHint = None
self._paperColor = None
self._oversampleThreshold = 0
def read(self, document):
"""Reads rendering options from the given Poppler.Document."""
self._renderHint = document.renderHints()
self._paperColor = document.paperColor()
def write(self, document):
"""Writes our rendering options to the given Poppler.Document."""
if self._renderHint is not None:
document.setRenderHint(int(document.renderHints()), False)
document.setRenderHint(self._renderHint)
if self._paperColor is not None:
document.setPaperColor(self._paperColor)
def setRenderHint(self, hint):
"""Sets the Poppler.Document.RenderHints. Use None to unset."""
self._renderHint = hint
def renderHint(self):
"""Returns the currently set RenderHint(s)."""
return self._renderHint
def setPaperColor(self, color):
"""Sets the paper color for rendering. Use None to unset."""
self._paperColor = color
def paperColor(self):
"""Returns the currently set paper color."""
return self._paperColor
def setOversampleThreshold(self, value):
"""Sets the oversample threshold resolution.
Below this resolution, the image will be rendered in double size
and scaled down, to provide a smoother image. Otherwise, the horizontal
lines may appear too thick.
The default value is 0, meaning no oversampling.
"""
self._oversampleThreshold = value
def oversampleThreshold(self):
"""Return the current oversample threshold resolution."""
return self._oversampleThreshold
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