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"""
***************************************************************************
gdalinfo.py
---------------------
Date : August 2012
Copyright : (C) 2012 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* 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. *
* *
***************************************************************************
"""
__author__ = "Victor Olaya"
__date__ = "August 2012"
__copyright__ = "(C) 2012, Victor Olaya"
import os
from qgis.PyQt.QtGui import QIcon
from qgis.core import (
QgsProcessingException,
QgsProcessingParameterDefinition,
QgsProcessingParameterString,
QgsProcessingParameterRasterLayer,
QgsProcessingParameterBoolean,
QgsProcessingParameterFileDestination,
)
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
from processing.algs.gdal.GdalUtils import GdalUtils
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
class gdalinfo(GdalAlgorithm):
INPUT = "INPUT"
MIN_MAX = "MIN_MAX"
STATS = "STATS"
NO_GCP = "NOGCP"
NO_METADATA = "NO_METADATA"
EXTRA = "EXTRA"
OUTPUT = "OUTPUT"
def __init__(self):
super().__init__()
def initAlgorithm(self, config=None):
self.addParameter(
QgsProcessingParameterRasterLayer(self.INPUT, self.tr("Input layer"))
)
self.addParameter(
QgsProcessingParameterBoolean(
self.MIN_MAX,
self.tr("Force computation of the actual min/max values for each band"),
defaultValue=False,
)
)
self.addParameter(
QgsProcessingParameterBoolean(
self.STATS,
self.tr(
"Read and display image statistics (force computation if necessary)"
),
defaultValue=False,
)
)
self.addParameter(
QgsProcessingParameterBoolean(
self.NO_GCP, self.tr("Suppress GCP info"), defaultValue=False
)
)
self.addParameter(
QgsProcessingParameterBoolean(
self.NO_METADATA, self.tr("Suppress metadata info"), defaultValue=False
)
)
extra_param = QgsProcessingParameterString(
self.EXTRA,
self.tr("Additional command-line parameters"),
defaultValue=None,
optional=True,
)
extra_param.setFlags(
extra_param.flags() | QgsProcessingParameterDefinition.Flag.FlagAdvanced
)
self.addParameter(extra_param)
self.addParameter(
QgsProcessingParameterFileDestination(
self.OUTPUT,
self.tr("Layer information"),
self.tr("HTML files (*.html)"),
)
)
def name(self):
return "gdalinfo"
def displayName(self):
return self.tr("Raster information")
def group(self):
return self.tr("Raster miscellaneous")
def groupId(self):
return "rastermiscellaneous"
def icon(self):
return QIcon(os.path.join(pluginPath, "images", "gdaltools", "raster-info.png"))
def commandName(self):
return "gdalinfo"
def getConsoleCommands(self, parameters, context, feedback, executing=True):
arguments = []
if self.parameterAsBoolean(parameters, self.MIN_MAX, context):
arguments.append("-mm")
if self.parameterAsBoolean(parameters, self.STATS, context):
arguments.append("-stats")
if self.parameterAsBoolean(parameters, self.NO_GCP, context):
arguments.append("-nogcp")
if self.parameterAsBoolean(parameters, self.NO_METADATA, context):
arguments.append("-nomd")
if self.EXTRA in parameters and parameters[self.EXTRA] not in (None, ""):
extra = self.parameterAsString(parameters, self.EXTRA, context)
arguments.append(extra)
raster = self.parameterAsRasterLayer(parameters, self.INPUT, context)
if raster is None:
raise QgsProcessingException(
self.invalidRasterError(parameters, self.INPUT)
)
input_details = GdalUtils.gdal_connection_details_from_layer(raster)
arguments.append(input_details.connection_string)
if input_details.open_options:
arguments.extend(input_details.open_options_as_arguments())
if input_details.credential_options:
arguments.extend(input_details.credential_options_as_arguments())
return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]
def processAlgorithm(self, parameters, context, feedback):
console_output = GdalUtils.runGdal(
self.getConsoleCommands(parameters, context, feedback), feedback
)
output = self.parameterAsFileOutput(parameters, self.OUTPUT, context)
with open(output, "w") as f:
f.write("<pre>")
for s in console_output[1:]:
f.write(str(s))
f.write("</pre>")
return {self.OUTPUT: output}
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