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# -*- coding: utf-8 -*-
"""
***************************************************************************
EditScriptDialog.py
---------------------
Date : December 2012
Copyright : (C) 2012 by Alexander Bruy
Email : alexander dot bruy 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__ = 'Alexander Bruy'
__date__ = 'December 2012'
__copyright__ = '(C) 2012, Alexander Bruy'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import codecs
import sys
import json
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.Qsci import *
from qgis.core import *
from qgis.utils import iface
from processing.gui.ParametersDialog import ParametersDialog
from processing.gui.HelpEditionDialog import HelpEditionDialog
from processing.modeler.Providers import Providers
from processing.algs.r.RAlgorithm import RAlgorithm
from processing.algs.r.RUtils import RUtils
from processing.script.ScriptAlgorithm import ScriptAlgorithm
from processing.script.ScriptUtils import ScriptUtils
from processing.ui.ui_DlgScriptEditor import Ui_DlgScriptEditor
import processing.resources_rc
class ScriptEditorDialog(QDialog, Ui_DlgScriptEditor):
SCRIPT_PYTHON = 0
SCRIPT_R = 1
hasChanged = False
def __init__(self, algType, alg):
QDialog.__init__(self)
self.setupUi(self)
self.setWindowFlags(Qt.WindowMinimizeButtonHint |
Qt.WindowMaximizeButtonHint |
Qt.WindowCloseButtonHint)
# Set icons
self.btnSave.setIcon(
QgsApplication.getThemeIcon('/mActionFileSave.svg'))
self.btnSaveAs.setIcon(
QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
self.btnEditHelp.setIcon(QIcon(':/processing/images/edithelp.png'))
self.btnRun.setIcon(QIcon(':/processing/images/runalgorithm.png'))
self.btnCut.setIcon(QgsApplication.getThemeIcon('/mActionEditCut.png'))
self.btnCopy.setIcon(
QgsApplication.getThemeIcon('/mActionEditCopy.png'))
self.btnPaste.setIcon(
QgsApplication.getThemeIcon('/mActionEditPaste.png'))
self.btnUndo.setIcon(QgsApplication.getThemeIcon('/mActionUndo.png'))
self.btnRedo.setIcon(QgsApplication.getThemeIcon('/mActionRedo.png'))
# Connect signals and slots
self.btnSave.clicked.connect(self.save)
self.btnSaveAs.clicked.connect(self.saveAs)
self.btnEditHelp.clicked.connect(self.editHelp)
self.btnRun.clicked.connect(self.runAlgorithm)
self.btnCut.clicked.connect(self.editor.cut)
self.btnCopy.clicked.connect(self.editor.copy)
self.btnPaste.clicked.connect(self.editor.paste)
self.btnUndo.clicked.connect(self.editor.undo)
self.btnRedo.clicked.connect(self.editor.redo)
self.editor.textChanged.connect(lambda: self.setHasChanged(True))
self.alg = alg
self.algType = algType
if self.alg is not None:
self.filename = self.alg.descriptionFile
self.editor.setText(self.alg.script)
else:
self.filename = None
self.update = False
self.help = None
self.setHasChanged(False)
self.editor.setLexerType(self.algType)
def editHelp(self):
if self.alg is None:
if self.algType == self.SCRIPT_PYTHON:
alg = ScriptAlgorithm(None, unicode(self.editor.text()))
elif self.algType == self.SCRIPT_R:
alg = RAlgorithm(None, unicode(self.editor.text()))
else:
alg = self.alg
dlg = HelpEditionDialog(alg)
dlg.exec_()
# We store the description string in case there were not saved
# because there was no filename defined yet
if self.alg is None and dlg.descriptions:
self.help = dlg.descriptions
def save(self):
self.saveScript(False)
def saveAs(self):
self.saveScript(True)
def saveScript(self, saveAs):
if self.filename is None or saveAs:
if self.algType == self.SCRIPT_PYTHON:
scriptDir = ScriptUtils.scriptsFolder()
filterName = self.tr('Python scripts (*.py)')
elif self.algType == self.SCRIPT_R:
scriptDir = RUtils.RScriptsFolder()
filterName = self.tr('Processing R script (*.rsx)')
self.filename = unicode(QFileDialog.getSaveFileName(self,
self.tr('Save script'), scriptDir,
filterName))
if self.filename:
if self.algType == self.SCRIPT_PYTHON \
and not self.filename.lower().endswith('.py'):
self.filename += '.py'
if self.algType == self.SCRIPT_R \
and not self.filename.lower().endswith('.rsx'):
self.filename += '.rsx'
text = unicode(self.editor.text())
if self.alg is not None:
self.alg.script = text
try:
with codecs.open(self.filename, 'w', encoding='utf-8') as fout:
fout.write(text)
except IOError:
QMessageBox.warning(self, self.tr('I/O error'),
self.tr('Unable to save edits. Reason:\n %s')
% unicode(sys.exc_info()[1]))
return
self.update = True
# If help strings were defined before saving the script for
# the first time, we do it here
if self.help:
with open(self.filename + '.help', 'w') as f:
json.dump(self.help, f)
self.help = None
self.setHasChanged(False)
else:
self.filename = None
def setHasChanged(self, hasChanged):
self.hasChanged = hasChanged
self.btnSave.setEnabled(hasChanged)
def runAlgorithm(self):
if self.algType == self.SCRIPT_PYTHON:
alg = ScriptAlgorithm(None, unicode(self.editor.text()))
alg.provider = Providers.providers['script']
if self.algType == self.SCRIPT_R:
alg = RAlgorithm(None, unicode(self.editor.text()))
alg.provider = Providers.providers['r']
dlg = alg.getCustomParametersDialog()
if not dlg:
dlg = ParametersDialog(alg)
canvas = iface.mapCanvas()
prevMapTool = canvas.mapTool()
dlg.show()
dlg.exec_()
if canvas.mapTool() != prevMapTool:
try:
canvas.mapTool().reset()
except:
pass
canvas.setMapTool(prevMapTool)
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