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b1cadb1822
have specific icons, instead of generic qgis icon We consider these 'top level' algorithms, and using the standard algorithm icon should help reflect this and differentiate them from 3rd party algorithms.
82 lines
2.9 KiB
Python
82 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SelectByLocation.py
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---------------------
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Date : August 2012
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Copyright : (C) 2012 by Victor Olaya
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Email : volayaf at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Victor Olaya'
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__date__ = 'August 2012'
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__copyright__ = '(C) 2012, Victor Olaya'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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import os
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from qgis.PyQt.QtXml import QDomDocument
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from qgis.core import (QgsApplication,
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QgsProcessingUtils)
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from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
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from processing.core.parameters import ParameterFile
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from processing.core.parameters import ParameterRaster
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from processing.core.outputs import OutputRaster
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from processing.tools import dataobjects
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from qgis.utils import iface
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class SetRasterStyle(QgisAlgorithm):
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INPUT = 'INPUT'
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STYLE = 'STYLE'
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OUTPUT = 'OUTPUT'
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def group(self):
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return self.tr('Raster general tools')
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def __init__(self):
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super().__init__()
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self.addParameter(ParameterRaster(self.INPUT,
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self.tr('Raster layer')))
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self.addParameter(ParameterFile(self.STYLE,
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self.tr('Style file'), False, False, 'qml'))
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self.addOutput(OutputRaster(self.OUTPUT, self.tr('Styled'), True))
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def name(self):
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return 'setstyleforrasterlayer'
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def displayName(self):
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return self.tr('Set style for raster layer')
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def processAlgorithm(self, parameters, context, feedback):
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filename = self.getParameterValue(self.INPUT)
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layer = QgsProcessingUtils.mapLayerFromString(filename, context)
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style = self.getParameterValue(self.STYLE)
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if layer is None:
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dataobjects.load(filename, os.path.basename(filename), style=style)
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else:
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with open(style) as f:
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xml = "".join(f.readlines())
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d = QDomDocument()
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d.setContent(xml)
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n = d.firstChild()
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layer.readSymbology(n, '')
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context.addLayerToLoadOnCompletion(self.getOutputFromName(self.OUTPUT).value)
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self.setOutputValue(self.OUTPUT, filename)
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layer.triggerRepaint()
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