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# -*- coding: utf-8 -*-
"""
***************************************************************************
OutputSelectionPanel.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'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import os.path
import re
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from qgis.gui import *
from processing.core.ProcessingConfig import ProcessingConfig
from processing.outputs.OutputVector import OutputVector
from processing.outputs.OutputDirectory import OutputDirectory
from processing.ui.ui_widgetOutputSelect import Ui_widgetOutputSelect
class OutputSelectionPanel(QWidget, Ui_widgetOutputSelect):
SAVE_TO_TEMP_FILE = QCoreApplication.translate(
'OutputSelectionPanel', '[Save to temporary file]')
def __init__(self, output, alg):
QWidget.__init__(self)
self.setupUi(self)
self.output = output
self.alg = alg
if hasattr(self.text, 'setPlaceholderText'):
self.text.setPlaceholderText(self.SAVE_TO_TEMP_FILE)
self.btnBrowse.clicked.connect(self.selectOutput)
def selectOutput(self):
if isinstance(self.output, OutputDirectory):
self.selectDirectory()
else:
popupMenu = QMenu()
actionSaveToTempFile = QAction(
self.tr('Save to a temporary file'), self.btnBrowse)
actionSaveToTempFile.triggered.connect(self.saveToTemporaryFile)
popupMenu.addAction(actionSaveToTempFile)
actionSaveToFile = QAction(
self.tr('Save to file...'), self.btnBrowse)
actionSaveToFile.triggered.connect(self.selectFile)
popupMenu.addAction(actionSaveToFile)
if isinstance(self.output, OutputVector) \
and self.alg.provider.supportsNonFileBasedOutput():
actionSaveToMemory = QAction(
self.tr('Save to memory layer'), self.btnBrowse)
actionSaveToMemory.triggered.connect(self.saveToMemory)
popupMenu.addAction(actionSaveToMemory)
popupMenu.exec_(QCursor.pos())
def saveToTemporaryFile(self):
self.text.setText('')
def saveToMemory(self):
self.text.setText('memory:')
def selectFile(self):
fileFilter = self.output.getFileFilter(self.alg)
settings = QSettings()
if settings.contains('/Processing/LastOutputPath'):
path = settings.value('/Processing/LastOutputPath')
else:
path = ProcessingConfig.getSetting(ProcessingConfig.OUTPUT_FOLDER)
encoding = settings.value('/Processing/encoding', 'System')
fileDialog = QgsEncodingFileDialog(
self, self.tr('Save file'), path, fileFilter, encoding)
fileDialog.setFileMode(QFileDialog.AnyFile)
fileDialog.setAcceptMode(QFileDialog.AcceptSave)
fileDialog.setConfirmOverwrite(True)
if fileDialog.exec_() == QDialog.Accepted:
files = fileDialog.selectedFiles()
encoding = unicode(fileDialog.encoding())
self.output.encoding = encoding
fileName = unicode(files[0])
selectedFileFilter = unicode(fileDialog.selectedNameFilter())
if not fileName.lower().endswith(
tuple(re.findall("\*(\.[a-z]{1,5})", fileFilter))):
ext = re.search("\*(\.[a-z]{1,5})", selectedFileFilter)
if ext:
fileName += ext.group(1)
self.text.setText(fileName)
settings.setValue('/Processing/LastOutputPath',
os.path.dirname(fileName))
settings.setValue('/Processing/encoding', encoding)
def selectDirectory(self):
lastDir = ''
dirName = QFileDialog.getExistingDirectory(self,
self.tr('Select directory'), lastDir, QFileDialog.ShowDirsOnly)
self.text.setText(dirName)
def getValue(self):
fileName = unicode(self.text.text())
if fileName.strip() in ['', self.SAVE_TO_TEMP_FILE]:
value = None
elif fileName.startswith('memory:'):
value = fileName
elif not os.path.isabs(fileName):
value = ProcessingConfig.getSetting(
ProcessingConfig.OUTPUT_FOLDER) + os.sep + fileName
else:
value = fileName
return value
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