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126 lines
5.1 KiB
Python
126 lines
5.1 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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OutputSelectionPanel.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.path
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import re
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from qgis.gui import *
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from processing.core.ProcessingConfig import ProcessingConfig
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from processing.outputs.OutputVector import OutputVector
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class OutputSelectionPanel(QWidget):
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lastOutputFolder = None
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SAVE_TO_TEMP_FILE = '[Save to temporary file]'
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def __init__(self, output, alg):
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self.output = output
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self.alg = alg
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super(OutputSelectionPanel, self).__init__(None)
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self.horizontalLayout = QHBoxLayout(self)
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self.horizontalLayout.setSpacing(2)
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self.horizontalLayout.setMargin(0)
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self.text = QLineEdit()
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if hasattr(self.text, 'setPlaceholderText'):
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self.text.setPlaceholderText(
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OutputSelectionPanel.SAVE_TO_TEMP_FILE)
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self.text.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
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self.horizontalLayout.addWidget(self.text)
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self.pushButton = QPushButton()
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self.pushButton.setText('...')
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self.pushButton.clicked.connect(self.buttonPushed)
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self.horizontalLayout.addWidget(self.pushButton)
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self.setLayout(self.horizontalLayout)
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def buttonPushed(self):
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popupmenu = QMenu()
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saveToTemporaryFileAction = QAction('Save to a temporary file',
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self.pushButton)
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saveToTemporaryFileAction.triggered.connect(self.saveToTemporaryFile)
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popupmenu.addAction(saveToTemporaryFileAction)
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if isinstance(self.output, OutputVector) \
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and self.alg.provider.supportsNonFileBasedOutput():
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saveToMemoryAction = QAction('Save to a memory layer',
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self.pushButton)
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saveToMemoryAction.triggered.connect(self.saveToMemory)
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popupmenu.addAction(saveToMemoryAction)
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saveToFileAction = QAction('Save to file...', self.pushButton)
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saveToFileAction.triggered.connect(self.saveToFile)
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popupmenu.addAction(saveToFileAction)
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popupmenu.exec_(QCursor.pos())
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def saveToTemporaryFile(self):
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self.text.setText('')
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def saveToMemory(self):
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self.text.setText('memory:')
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def saveToFile(self):
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filefilter = self.output.getFileFilter(self.alg)
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settings = QSettings()
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if settings.contains('/Processing/LastOutputPath'):
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path = settings.value('/Processing/LastOutputPath')
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else:
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path = ProcessingConfig.getSetting(ProcessingConfig.OUTPUT_FOLDER)
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lastEncoding = settings.value('/Processing/encoding', 'System')
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fileDialog = QgsEncodingFileDialog(self, 'Save file', path,
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filefilter, lastEncoding)
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fileDialog.setFileMode(QFileDialog.AnyFile)
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fileDialog.setAcceptMode(QFileDialog.AcceptSave)
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fileDialog.setConfirmOverwrite(True)
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if fileDialog.exec_() == QDialog.Accepted:
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files = fileDialog.selectedFiles()
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encoding = unicode(fileDialog.encoding())
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self.output.encoding = encoding
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filename = unicode(files[0])
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selectedFilefilter = unicode(fileDialog.selectedNameFilter())
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if not filename.lower().endswith(
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tuple(re.findall("\*(\.[a-z]{1,5})", filefilter))):
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ext = re.search("\*(\.[a-z]{1,5})", selectedFilefilter)
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if ext:
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filename = filename + ext.group(1)
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self.text.setText(filename)
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settings.setValue('/Processing/LastOutputPath',
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os.path.dirname(filename))
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settings.setValue('/Processing/encoding', encoding)
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def getValue(self):
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filename = unicode(self.text.text())
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if filename.strip() == '' or filename \
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== OutputSelectionPanel.SAVE_TO_TEMP_FILE:
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return None
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if filename.startswith('memory:'):
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return filename
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else:
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if not os.path.isabs(filename):
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filename = ProcessingConfig.getSetting(
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ProcessingConfig.OUTPUT_FOLDER) + os.sep + filename
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return filename
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