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[processing] modeler now warns before closing if there are changes

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This commit is contained in:
Victor Olaya 2013-09-21 12:45:25 +02:00
parent 1517e58ae7
commit 82668d3271
1 changed files with 20 additions and 9 deletions
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29
python/plugins/processing/modeler/ModelerDialog.py
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@ -23,20 +23,16 @@ __copyright__ = '(C) 2012, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
import sys
import codecs
import pickle
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from processing.core.ProcessingConfig import ProcessingConfig
from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.gui.HelpEditionDialog import HelpEditionDialog
from processing.gui.ParametersDialog import ParametersDialog
from processing.gui.AlgorithmClassification import AlgorithmDecorator
from processing.modeler.ModelerParameterDefinitionDialog import ModelerParameterDefinitionDialog
from processing.modeler.ModelerAlgorithm import ModelerAlgorithm
from processing.modeler.ModelerParametersDialog import ModelerParametersDialog
@ -44,9 +40,7 @@ from processing.modeler.ModelerUtils import ModelerUtils
from processing.modeler.WrongModelException import WrongModelException
from processing.modeler.ModelerScene import ModelerScene
from processing.modeler.Providers import Providers
from processing.tools.system import *
from processing.ui.ui_DlgModeler import Ui_DlgModeler
class ModelerDialog(QDialog, Ui_DlgModeler):
@ -56,13 +50,12 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
def __init__(self, alg=None):
QDialog.__init__(self)
self.hasChanged = False
self.setupUi(self)
self.setWindowFlags(self.windowFlags() | Qt.WindowSystemMenuHint |
Qt.WindowMinMaxButtonsHint)
self.tabWidget.setCurrentIndex(0)
self.scene = ModelerScene(self)
self.scene.setSceneRect(QRectF(0, 0, 4000, 4000))
self.view.setScene(self.scene)
@ -124,6 +117,19 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
self.help = None
self.update = False #indicates whether to update or not the toolbox after closing this dialog
def closeEvent(self, evt):
if self.hasChanged:
ret = QMessageBox.question(self, 'Message',
"The are unchanged changes in model. Close modeler without saving?",
QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
if ret == QMessageBox.Yes:
evt.accept()
else:
evt.ignore()
else:
evt.accept()
def editHelp(self):
dlg = HelpEditionDialog(self.alg)
dlg.exec_()
@ -240,6 +246,8 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
self.tr("Model saved"),
self.tr("Model was correctly saved.")
)
self.hasChanged = False
def openModel(self):
filename = unicode(QFileDialog.getOpenFileName(self, self.tr("Open Model"), ModelerUtils.modelsFolder(), self.tr("Processing models (*.model)")))
@ -255,6 +263,7 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
if self.scene.getLastAlgorithmItem():
self.view.ensureVisible(self.scene.getLastAlgorithmItem())
self.view.centerOn(0,0)
self.hasChanged = False
except WrongModelException, e:
QMessageBox.critical(self,
self.tr("Could not open model"),
@ -278,6 +287,7 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
self.alg.addParameter(dlg.param)
self.repaintModel()
self.view.ensureVisible(self.scene.getLastParameterItem())
self.hasChanged = True
def fillInputsTree(self):
parametersItem = QTreeWidgetItem()
@ -303,6 +313,7 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
self.alg.addAlgorithm(alg, dlg.params, dlg.values, dlg.outputs, dlg.dependencies)
self.repaintModel()
self.view.ensureVisible(self.scene.getLastAlgorithmItem())
self.hasChanged = False
def fillAlgorithmTree(self):
settings = QSettings()