# -*- 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 os
import codecs
import inspect
import traceback
import warnings
from qgis.PyQt import uic
from qgis.PyQt.QtCore import Qt
from qgis.PyQt.QtGui import QCursor
from qgis.PyQt.QtWidgets import (QMessageBox,
QFileDialog)
from qgis.gui import QgsGui, QgsErrorDialog
from qgis.core import (QgsApplication,
QgsSettings,
QgsError,
QgsProcessingAlgorithm,
QgsProcessingFeatureBasedAlgorithm)
from qgis.utils import iface, OverrideCursor
from processing.gui.AlgorithmDialog import AlgorithmDialog
from processing.script import ScriptUtils
pluginPath = os.path.split(os.path.dirname(__file__))[0]
with warnings.catch_warnings():
warnings.filterwarnings("ignore", category=DeprecationWarning)
WIDGET, BASE = uic.loadUiType(
os.path.join(pluginPath, "ui", "DlgScriptEditor.ui"))
class ScriptEditorDialog(BASE, WIDGET):
hasChanged = False
def __init__(self, filePath=None, parent=None):
super(ScriptEditorDialog, self).__init__(parent)
self.setupUi(self)
QgsGui.instance().enableAutoGeometryRestore(self)
self.editor.initLexer()
self.searchWidget.setVisible(False)
if iface is not None:
self.toolBar.setIconSize(iface.iconSize())
self.setStyleSheet(iface.mainWindow().styleSheet())
self.actionOpenScript.setIcon(
QgsApplication.getThemeIcon('/mActionScriptOpen.svg'))
self.actionSaveScript.setIcon(
QgsApplication.getThemeIcon('/mActionFileSave.svg'))
self.actionSaveScriptAs.setIcon(
QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
self.actionRunScript.setIcon(
QgsApplication.getThemeIcon('/mActionStart.svg'))
self.actionCut.setIcon(
QgsApplication.getThemeIcon('/mActionEditCut.svg'))
self.actionCopy.setIcon(
QgsApplication.getThemeIcon('/mActionEditCopy.svg'))
self.actionPaste.setIcon(
QgsApplication.getThemeIcon('/mActionEditPaste.svg'))
self.actionUndo.setIcon(
QgsApplication.getThemeIcon('/mActionUndo.svg'))
self.actionRedo.setIcon(
QgsApplication.getThemeIcon('/mActionRedo.svg'))
self.actionFindReplace.setIcon(
QgsApplication.getThemeIcon('/mActionFindReplace.svg'))
self.actionIncreaseFontSize.setIcon(
QgsApplication.getThemeIcon('/mActionIncreaseFont.svg'))
self.actionDecreaseFontSize.setIcon(
QgsApplication.getThemeIcon('/mActionDecreaseFont.svg'))
# Connect signals and slots
self.actionOpenScript.triggered.connect(self.openScript)
self.actionSaveScript.triggered.connect(self.save)
self.actionSaveScriptAs.triggered.connect(self.saveAs)
self.actionRunScript.triggered.connect(self.runAlgorithm)
self.actionCut.triggered.connect(self.editor.cut)
self.actionCopy.triggered.connect(self.editor.copy)
self.actionPaste.triggered.connect(self.editor.paste)
self.actionUndo.triggered.connect(self.editor.undo)
self.actionRedo.triggered.connect(self.editor.redo)
self.actionFindReplace.toggled.connect(self.toggleSearchBox)
self.actionIncreaseFontSize.triggered.connect(self.editor.zoomIn)
self.actionDecreaseFontSize.triggered.connect(self.editor.zoomOut)
self.editor.textChanged.connect(lambda: self.setHasChanged(True))
self.leFindText.returnPressed.connect(self.find)
self.btnFind.clicked.connect(self.find)
self.btnReplace.clicked.connect(self.replace)
self.lastSearch = None
self.filePath = None
if filePath is not None:
self._loadFile(filePath)
self.needUpdate = False
self.setHasChanged(False)
def update_dialog_title(self):
"""
Updates the script editor dialog title
"""
if self.filePath:
path, file_name = os.path.split(self.filePath)
else:
file_name = self.tr('Untitled Script')
if self.hasChanged:
file_name = '*' + file_name
self.setWindowTitle(self.tr('{} - Processing Script Editor').format(file_name))
def closeEvent(self, event):
settings = QgsSettings()
settings.setValue("/Processing/stateScriptEditor", self.saveState())
settings.setValue("/Processing/geometryScriptEditor", self.saveGeometry())
if self.hasChanged:
ret = QMessageBox.question(
self, self.tr('Save Script?'),
self.tr('There are unsaved changes in this script. Do you want to keep those?'),
QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard, QMessageBox.Cancel)
if ret == QMessageBox.Save:
self.updateProvider()
self.saveScript(False)
event.accept()
elif ret == QMessageBox.Discard:
self.updateProvider()
event.accept()
else:
event.ignore()
else:
event.accept()
def updateProvider(self):
if self.needUpdate:
QgsApplication.processingRegistry().providerById("script").refreshAlgorithms()
def openScript(self):
if self.hasChanged:
ret = QMessageBox.warning(self,
self.tr("Unsaved changes"),
self.tr("There are unsaved changes in the script. Continue?"),
QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
if ret == QMessageBox.No:
return
scriptDir = ScriptUtils.scriptsFolders()[0]
fileName, _ = QFileDialog.getOpenFileName(self,
self.tr("Open script"),
scriptDir,
self.tr("Processing scripts (*.py *.PY)"))
if fileName == "":
return
with OverrideCursor(Qt.WaitCursor):
self._loadFile(fileName)
def save(self):
self.saveScript(False)
def saveAs(self):
self.saveScript(True)
def saveScript(self, saveAs):
newPath = None
if self.filePath is None or saveAs:
scriptDir = ScriptUtils.scriptsFolders()[0]
newPath, _ = QFileDialog.getSaveFileName(self,
self.tr("Save script"),
scriptDir,
self.tr("Processing scripts (*.py *.PY)"))
if newPath:
if not newPath.lower().endswith(".py"):
newPath += ".py"
self.filePath = newPath
if self.filePath:
text = self.editor.text()
try:
with codecs.open(self.filePath, "w", encoding="utf-8") as f:
f.write(text)
except IOError as e:
QMessageBox.warning(self,
self.tr("I/O error"),
self.tr("Unable to save edits:\n{}").format(str(e))
)
return
self.needUpdate = True
self.setHasChanged(False)
def setHasChanged(self, hasChanged):
self.hasChanged = hasChanged
self.actionSaveScript.setEnabled(hasChanged)
self.update_dialog_title()
def runAlgorithm(self):
d = {}
try:
exec(self.editor.text(), d)
except Exception as e:
error = QgsError(traceback.format_exc(), "Processing")
QgsErrorDialog.show(error,
self.tr("Execution error")
)
return
alg = None
for k, v in d.items():
if inspect.isclass(v) and issubclass(v, (QgsProcessingAlgorithm, QgsProcessingFeatureBasedAlgorithm)) and v.__name__ not in ("QgsProcessingAlgorithm", "QgsProcessingFeatureBasedAlgorithm"):
alg = v()
break
if alg is None:
QMessageBox.warning(self,
self.tr("No script found"),
self.tr("Seems there is no valid script in the file.")
)
return
alg.setProvider(QgsApplication.processingRegistry().providerById("script"))
alg.initAlgorithm()
dlg = alg.createCustomParametersWidget(self)
if not dlg:
dlg = AlgorithmDialog(alg)
canvas = iface.mapCanvas()
prevMapTool = canvas.mapTool()
dlg.show()
if canvas.mapTool() != prevMapTool:
try:
canvas.mapTool().reset()
except:
pass
canvas.setMapTool(prevMapTool)
def find(self):
textToFind = self.leFindText.text()
caseSensitive = self.chkCaseSensitive.isChecked()
wholeWord = self.chkWholeWord.isChecked()
if self.lastSearch is None or textToFind != self.lastSearch:
self.editor.findFirst(textToFind, False, caseSensitive, wholeWord, True)
else:
self.editor.findNext()
def replace(self):
textToReplace = self.leReplaceText.text()
self.editor.replaceSelectedText(textToReplace)
def toggleSearchBox(self, checked):
self.searchWidget.setVisible(checked)
if (checked):
self.leFindText.setFocus()
def _loadFile(self, filePath):
with codecs.open(filePath, "r", encoding="utf-8") as f:
txt = f.read()
self.editor.setText(txt)
self.hasChanged = False
self.editor.setModified(False)
self.editor.recolor()
self.filePath = filePath
self.update_dialog_title()