mirror of
https://github.com/qgis/QGIS.git
synced 2025-10-30 00:07:09 -04:00
525 lines
21 KiB
Python
525 lines
21 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
ModelerDialog.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 codecs
|
|
import sys
|
|
import os
|
|
|
|
from qgis.PyQt import uic
|
|
from qgis.PyQt.QtCore import Qt, QRectF, QMimeData, QPoint, QPointF, QSettings, QByteArray
|
|
from qgis.PyQt.QtWidgets import QGraphicsView, QTreeWidget, QMessageBox, QFileDialog, QTreeWidgetItem
|
|
from qgis.PyQt.QtGui import QIcon, QImage, QPainter
|
|
from qgis.core import QgsApplication
|
|
from processing.core.ProcessingConfig import ProcessingConfig
|
|
from processing.core.ProcessingLog import ProcessingLog
|
|
from processing.gui.HelpEditionDialog import HelpEditionDialog
|
|
from processing.gui.AlgorithmDialog import AlgorithmDialog
|
|
from processing.modeler.ModelerParameterDefinitionDialog import ModelerParameterDefinitionDialog
|
|
from processing.modeler.ModelerAlgorithm import ModelerAlgorithm, ModelerParameter
|
|
from processing.modeler.ModelerParametersDialog import ModelerParametersDialog
|
|
from processing.modeler.ModelerUtils import ModelerUtils
|
|
from processing.modeler.ModelerScene import ModelerScene
|
|
from processing.modeler.WrongModelException import WrongModelException
|
|
from processing.core.alglist import algList
|
|
|
|
pluginPath = os.path.split(os.path.dirname(__file__))[0]
|
|
WIDGET, BASE = uic.loadUiType(
|
|
os.path.join(pluginPath, 'ui', 'DlgModeler.ui'))
|
|
|
|
|
|
class ModelerDialog(BASE, WIDGET):
|
|
|
|
CANVAS_SIZE = 4000
|
|
|
|
def __init__(self, alg=None):
|
|
super(ModelerDialog, self).__init__(None)
|
|
self.setupUi(self)
|
|
|
|
self.zoom = 1
|
|
|
|
self.setWindowFlags(Qt.WindowMinimizeButtonHint |
|
|
Qt.WindowMaximizeButtonHint |
|
|
Qt.WindowCloseButtonHint)
|
|
|
|
settings = QSettings()
|
|
self.splitter.restoreState(settings.value("/Processing/splitterModeler", QByteArray()))
|
|
self.restoreGeometry(settings.value("/Processing/geometryModeler", QByteArray()))
|
|
|
|
self.tabWidget.setCurrentIndex(0)
|
|
self.scene = ModelerScene(self)
|
|
self.scene.setSceneRect(QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))
|
|
|
|
self.view.setScene(self.scene)
|
|
self.view.setAcceptDrops(True)
|
|
self.view.ensureVisible(0, 0, 10, 10)
|
|
|
|
def _dragEnterEvent(event):
|
|
if event.mimeData().hasText():
|
|
event.acceptProposedAction()
|
|
else:
|
|
event.ignore()
|
|
|
|
def _dropEvent(event):
|
|
if event.mimeData().hasText():
|
|
text = event.mimeData().text()
|
|
if text in ModelerParameterDefinitionDialog.paramTypes:
|
|
self.addInputOfType(text, event.pos())
|
|
else:
|
|
alg = algList.getAlgorithm(text)
|
|
if alg is not None:
|
|
self._addAlgorithm(alg.getCopy(), event.pos())
|
|
event.accept()
|
|
else:
|
|
event.ignore()
|
|
|
|
def _dragMoveEvent(event):
|
|
if event.mimeData().hasText():
|
|
event.accept()
|
|
else:
|
|
event.ignore()
|
|
|
|
def _wheelEvent(event):
|
|
self.view.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)
|
|
factor = 1.05
|
|
if event.delta() > 0:
|
|
factor = 1 / factor
|
|
self.view.scale(factor, factor)
|
|
self.repaintModel()
|
|
|
|
def _enterEvent(e):
|
|
QGraphicsView.enterEvent(self.view, e)
|
|
self.view.viewport().setCursor(Qt.ArrowCursor)
|
|
|
|
def _mousePressEvent(e):
|
|
QGraphicsView.mousePressEvent(self.view, e)
|
|
self.view.viewport().setCursor(Qt.ArrowCursor)
|
|
|
|
def _mouseReleaseEvent(e):
|
|
QGraphicsView.mouseReleaseEvent(self.view, e)
|
|
self.view.viewport().setCursor(Qt.ArrowCursor)
|
|
|
|
self.view.setDragMode(QGraphicsView.ScrollHandDrag)
|
|
self.view.dragEnterEvent = _dragEnterEvent
|
|
self.view.dropEvent = _dropEvent
|
|
self.view.dragMoveEvent = _dragMoveEvent
|
|
self.view.wheelEvent = _wheelEvent
|
|
self.view.enterEvent = _enterEvent
|
|
self.view.mousePressEvent = _mousePressEvent
|
|
self.view.mouseReleaseEvent = _mouseReleaseEvent
|
|
|
|
def _mimeDataInput(items):
|
|
mimeData = QMimeData()
|
|
text = items[0].text(0)
|
|
mimeData.setText(text)
|
|
return mimeData
|
|
|
|
self.inputsTree.mimeData = _mimeDataInput
|
|
|
|
self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
|
|
self.inputsTree.setDropIndicatorShown(True)
|
|
|
|
def _mimeDataAlgorithm(items):
|
|
item = items[0]
|
|
if isinstance(item, TreeAlgorithmItem):
|
|
mimeData = QMimeData()
|
|
mimeData.setText(item.alg.commandLineName())
|
|
return mimeData
|
|
|
|
self.algorithmTree.mimeData = _mimeDataAlgorithm
|
|
|
|
self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
|
|
self.algorithmTree.setDropIndicatorShown(True)
|
|
|
|
# Set icons
|
|
self.btnOpen.setIcon(QgsApplication.getThemeIcon('/mActionFileOpen.svg'))
|
|
self.btnSave.setIcon(QgsApplication.getThemeIcon('/mActionFileSave.svg'))
|
|
self.btnSaveAs.setIcon(QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
|
|
self.btnExportImage.setIcon(QgsApplication.getThemeIcon('/mActionSaveMapAsImage.png'))
|
|
self.btnExportPython.setIcon(QgsApplication.getThemeIcon('/console/iconSaveAsConsole.png'))
|
|
self.btnEditHelp.setIcon(QIcon(os.path.join(pluginPath, 'images', 'edithelp.png')))
|
|
self.btnRun.setIcon(QIcon(os.path.join(pluginPath, 'images', 'runalgorithm.png')))
|
|
|
|
if hasattr(self.searchBox, 'setPlaceholderText'):
|
|
self.searchBox.setPlaceholderText(self.tr('Search...'))
|
|
if hasattr(self.textName, 'setPlaceholderText'):
|
|
self.textName.setPlaceholderText(self.tr('[Enter model name here]'))
|
|
if hasattr(self.textGroup, 'setPlaceholderText'):
|
|
self.textGroup.setPlaceholderText(self.tr('[Enter group name here]'))
|
|
|
|
# Connect signals and slots
|
|
self.inputsTree.doubleClicked.connect(self.addInput)
|
|
self.searchBox.textChanged.connect(self.fillAlgorithmTree)
|
|
self.algorithmTree.doubleClicked.connect(self.addAlgorithm)
|
|
|
|
self.btnOpen.clicked.connect(self.openModel)
|
|
self.btnSave.clicked.connect(self.save)
|
|
self.btnSaveAs.clicked.connect(self.saveAs)
|
|
self.btnExportImage.clicked.connect(self.exportAsImage)
|
|
self.btnExportPython.clicked.connect(self.exportAsPython)
|
|
self.btnEditHelp.clicked.connect(self.editHelp)
|
|
self.btnRun.clicked.connect(self.runModel)
|
|
|
|
if alg is not None:
|
|
self.alg = alg
|
|
self.textGroup.setText(alg.group)
|
|
self.textName.setText(alg.name)
|
|
self.repaintModel()
|
|
|
|
else:
|
|
self.alg = ModelerAlgorithm()
|
|
self.alg.modelerdialog = self
|
|
|
|
self.fillInputsTree()
|
|
self.fillAlgorithmTree()
|
|
|
|
self.view.centerOn(0, 0)
|
|
self.alg.setModelerView(self)
|
|
self.help = None
|
|
# Indicates whether to update or not the toolbox after
|
|
# closing this dialog
|
|
self.update = False
|
|
|
|
self.hasChanged = False
|
|
|
|
def closeEvent(self, evt):
|
|
settings = QSettings()
|
|
settings.setValue("/Processing/splitterModeler", self.splitter.saveState())
|
|
settings.setValue("/Processing/geometryModeler", self.saveGeometry())
|
|
|
|
if self.hasChanged:
|
|
ret = QMessageBox.question(
|
|
self, self.tr('Unsaved changes'),
|
|
self.tr('There are unsaved changes in model. Continue?'),
|
|
QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
|
|
|
|
if ret == QMessageBox.Yes:
|
|
evt.accept()
|
|
else:
|
|
evt.ignore()
|
|
else:
|
|
evt.accept()
|
|
|
|
def editHelp(self):
|
|
if self.alg.provider is None:
|
|
# Might happen if model is opened from modeler dialog
|
|
self.alg.provider = algList.getProviderFromName('model')
|
|
alg = self.alg.getCopy()
|
|
dlg = HelpEditionDialog(alg)
|
|
dlg.exec_()
|
|
if dlg.descriptions:
|
|
self.alg.helpContent = dlg.descriptions
|
|
self.hasChanged = True
|
|
|
|
def runModel(self):
|
|
if len(self.alg.algs) == 0:
|
|
QMessageBox.warning(self, self.tr('Empty model'),
|
|
self.tr("Model doesn't contains any algorithms and/or "
|
|
"parameters and can't be executed"))
|
|
return
|
|
|
|
if self.alg.provider is None:
|
|
# Might happen if model is opened from modeler dialog
|
|
self.alg.provider = algList.getProviderFromName('model')
|
|
alg = self.alg.getCopy()
|
|
dlg = AlgorithmDialog(alg)
|
|
dlg.exec_()
|
|
|
|
def save(self):
|
|
self.saveModel(False)
|
|
|
|
def saveAs(self):
|
|
self.saveModel(True)
|
|
|
|
def exportAsImage(self):
|
|
filename, filter = QFileDialog.getSaveFileName(self,
|
|
self.tr('Save Model As Image'), '',
|
|
self.tr('PNG files (*.png *.PNG)'))
|
|
if not filename:
|
|
return
|
|
|
|
if not filename.lower().endswith('.png'):
|
|
filename += '.png'
|
|
|
|
totalRect = QRectF(0, 0, 1, 1)
|
|
for item in self.scene.items():
|
|
totalRect = totalRect.united(item.sceneBoundingRect())
|
|
totalRect.adjust(-10, -10, 10, 10)
|
|
|
|
img = QImage(totalRect.width(), totalRect.height(),
|
|
QImage.Format_ARGB32_Premultiplied)
|
|
img.fill(Qt.white)
|
|
painter = QPainter()
|
|
painter.setRenderHint(QPainter.Antialiasing)
|
|
painter.begin(img)
|
|
self.scene.render(painter, totalRect, totalRect)
|
|
painter.end()
|
|
|
|
img.save(filename)
|
|
|
|
def exportAsPython(self):
|
|
filename, filter = QFileDialog.getSaveFileName(self,
|
|
self.tr('Save Model As Python Script'), '',
|
|
self.tr('Python files (*.py *.PY)'))
|
|
if not filename:
|
|
return
|
|
|
|
if not filename.lower().endswith('.py'):
|
|
filename += '.py'
|
|
|
|
text = self.alg.toPython()
|
|
with codecs.open(filename, 'w', encoding='utf-8') as fout:
|
|
fout.write(text)
|
|
QMessageBox.information(self, self.tr('Model exported'),
|
|
self.tr('Model was correctly exported.'))
|
|
|
|
def saveModel(self, saveAs):
|
|
if unicode(self.textGroup.text()).strip() == '' \
|
|
or unicode(self.textName.text()).strip() == '':
|
|
QMessageBox.warning(
|
|
self, self.tr('Warning'), self.tr('Please enter group and model names before saving')
|
|
)
|
|
return
|
|
self.alg.name = unicode(self.textName.text())
|
|
self.alg.group = unicode(self.textGroup.text())
|
|
if self.alg.descriptionFile is not None and not saveAs:
|
|
filename = self.alg.descriptionFile
|
|
else:
|
|
filename, filter = QFileDialog.getSaveFileName(self,
|
|
self.tr('Save Model'),
|
|
ModelerUtils.modelsFolders()[0],
|
|
self.tr('Processing models (*.model)'))
|
|
if filename:
|
|
if not filename.endswith('.model'):
|
|
filename += '.model'
|
|
self.alg.descriptionFile = filename
|
|
if filename:
|
|
text = self.alg.toJson()
|
|
try:
|
|
fout = codecs.open(filename, 'w', encoding='utf-8')
|
|
except:
|
|
if saveAs:
|
|
QMessageBox.warning(self, self.tr('I/O error'),
|
|
self.tr('Unable to save edits. Reason:\n %s') % unicode(sys.exc_info()[1]))
|
|
else:
|
|
QMessageBox.warning(self, self.tr("Can't save model"),
|
|
self.tr("This model can't be saved in its "
|
|
"original location (probably you do not "
|
|
"have permission to do it). Please, use "
|
|
"the 'Save as...' option."))
|
|
return
|
|
fout.write(text)
|
|
fout.close()
|
|
self.update = True
|
|
QMessageBox.information(self, self.tr('Model saved'),
|
|
self.tr('Model was correctly saved.'))
|
|
|
|
self.hasChanged = False
|
|
|
|
def openModel(self):
|
|
filename, selected_filter = unicode(QFileDialog.getOpenFileName(self,
|
|
self.tr('Open Model'), ModelerUtils.modelsFolders()[0],
|
|
self.tr('Processing models (*.model *.MODEL)')))
|
|
if filename:
|
|
try:
|
|
alg = ModelerAlgorithm.fromFile(filename)
|
|
self.alg = alg
|
|
self.alg.setModelerView(self)
|
|
self.textGroup.setText(alg.group)
|
|
self.textName.setText(alg.name)
|
|
self.repaintModel()
|
|
|
|
self.view.centerOn(0, 0)
|
|
self.hasChanged = False
|
|
except WrongModelException as e:
|
|
ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
|
|
self.tr('Could not load model %s\n%s') % (filename, e.msg))
|
|
QMessageBox.critical(self, self.tr('Could not open model'),
|
|
self.tr('The selected model could not be loaded.\n'
|
|
'See the log for more information.'))
|
|
except Exception as e:
|
|
ProcessingLog.addToLog(ProcessingLog.LOG_ERROR,
|
|
self.tr('Could not load model %s\n%s') % (filename, e.args[0]))
|
|
QMessageBox.critical(self, self.tr('Could not open model'),
|
|
self.tr('The selected model could not be loaded.\n'
|
|
'See the log for more information.'))
|
|
|
|
def repaintModel(self):
|
|
self.scene = ModelerScene()
|
|
self.scene.setSceneRect(QRectF(0, 0, ModelerAlgorithm.CANVAS_SIZE,
|
|
ModelerAlgorithm.CANVAS_SIZE))
|
|
self.scene.paintModel(self.alg)
|
|
self.view.setScene(self.scene)
|
|
|
|
def addInput(self):
|
|
item = self.inputsTree.currentItem()
|
|
paramType = unicode(item.text(0))
|
|
self.addInputOfType(paramType)
|
|
|
|
def addInputOfType(self, paramType, pos=None):
|
|
if paramType in ModelerParameterDefinitionDialog.paramTypes:
|
|
dlg = ModelerParameterDefinitionDialog(self.alg, paramType)
|
|
dlg.exec_()
|
|
if dlg.param is not None:
|
|
if pos is None:
|
|
pos = self.getPositionForParameterItem()
|
|
if isinstance(pos, QPoint):
|
|
pos = QPointF(pos)
|
|
self.alg.addParameter(ModelerParameter(dlg.param, pos))
|
|
self.repaintModel()
|
|
# self.view.ensureVisible(self.scene.getLastParameterItem())
|
|
self.hasChanged = True
|
|
|
|
def getPositionForParameterItem(self):
|
|
MARGIN = 20
|
|
BOX_WIDTH = 200
|
|
BOX_HEIGHT = 80
|
|
if self.alg.inputs:
|
|
maxX = max([i.pos.x() for i in self.alg.inputs.values()])
|
|
newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
|
|
else:
|
|
newX = MARGIN + BOX_WIDTH / 2
|
|
return QPointF(newX, MARGIN + BOX_HEIGHT / 2)
|
|
|
|
def fillInputsTree(self):
|
|
icon = QIcon(os.path.join(pluginPath, 'images', 'input.png'))
|
|
parametersItem = QTreeWidgetItem()
|
|
parametersItem.setText(0, self.tr('Parameters'))
|
|
for paramType in ModelerParameterDefinitionDialog.paramTypes:
|
|
paramItem = QTreeWidgetItem()
|
|
paramItem.setText(0, paramType)
|
|
paramItem.setIcon(0, icon)
|
|
paramItem.setFlags(Qt.ItemIsEnabled | Qt.ItemIsSelectable | Qt.ItemIsDragEnabled)
|
|
parametersItem.addChild(paramItem)
|
|
self.inputsTree.addTopLevelItem(parametersItem)
|
|
parametersItem.setExpanded(True)
|
|
|
|
def addAlgorithm(self):
|
|
item = self.algorithmTree.currentItem()
|
|
if isinstance(item, TreeAlgorithmItem):
|
|
alg = algList.getAlgorithm(item.alg.commandLineName())
|
|
self._addAlgorithm(alg.getCopy())
|
|
|
|
def _addAlgorithm(self, alg, pos=None):
|
|
dlg = alg.getCustomModelerParametersDialog(self.alg)
|
|
if not dlg:
|
|
dlg = ModelerParametersDialog(alg, self.alg)
|
|
dlg.exec_()
|
|
if dlg.alg is not None:
|
|
if pos is None:
|
|
dlg.alg.pos = self.getPositionForAlgorithmItem()
|
|
else:
|
|
dlg.alg.pos = pos
|
|
if isinstance(dlg.alg.pos, QPoint):
|
|
dlg.alg.pos = QPointF(pos)
|
|
from processing.modeler.ModelerGraphicItem import ModelerGraphicItem
|
|
for i, out in enumerate(dlg.alg.outputs):
|
|
dlg.alg.outputs[out].pos = dlg.alg.pos + QPointF(ModelerGraphicItem.BOX_WIDTH, (i + 1.5)
|
|
* ModelerGraphicItem.BOX_HEIGHT)
|
|
self.alg.addAlgorithm(dlg.alg)
|
|
self.repaintModel()
|
|
self.hasChanged = True
|
|
|
|
def getPositionForAlgorithmItem(self):
|
|
MARGIN = 20
|
|
BOX_WIDTH = 200
|
|
BOX_HEIGHT = 80
|
|
if self.alg.algs:
|
|
maxX = max([alg.pos.x() for alg in self.alg.algs.values()])
|
|
maxY = max([alg.pos.y() for alg in self.alg.algs.values()])
|
|
newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
|
|
newY = min(MARGIN + BOX_HEIGHT + maxY, self.CANVAS_SIZE
|
|
- BOX_HEIGHT)
|
|
else:
|
|
newX = MARGIN + BOX_WIDTH / 2
|
|
newY = MARGIN * 2 + BOX_HEIGHT + BOX_HEIGHT / 2
|
|
return QPointF(newX, newY)
|
|
|
|
def fillAlgorithmTree(self):
|
|
self.fillAlgorithmTreeUsingProviders()
|
|
self.algorithmTree.sortItems(0, Qt.AscendingOrder)
|
|
|
|
text = unicode(self.searchBox.text())
|
|
if text != '':
|
|
self.algorithmTree.expandAll()
|
|
|
|
def fillAlgorithmTreeUsingProviders(self):
|
|
self.algorithmTree.clear()
|
|
text = unicode(self.searchBox.text())
|
|
allAlgs = algList.algs
|
|
for providerName in allAlgs.keys():
|
|
name = 'ACTIVATE_' + providerName.upper().replace(' ', '_')
|
|
if not ProcessingConfig.getSetting(name):
|
|
continue
|
|
groups = {}
|
|
algs = allAlgs[providerName].values()
|
|
|
|
# Add algorithms
|
|
for alg in algs:
|
|
if not alg.showInModeler or alg.allowOnlyOpenedLayers:
|
|
continue
|
|
if alg.commandLineName() == self.alg.commandLineName():
|
|
continue
|
|
if text == '' or text.lower() in alg.name.lower():
|
|
if alg.group in groups:
|
|
groupItem = groups[alg.group]
|
|
else:
|
|
groupItem = QTreeWidgetItem()
|
|
name = alg.i18n_group or alg.group
|
|
groupItem.setText(0, name)
|
|
groupItem.setToolTip(0, name)
|
|
groups[alg.group] = groupItem
|
|
algItem = TreeAlgorithmItem(alg)
|
|
groupItem.addChild(algItem)
|
|
|
|
if len(groups) > 0:
|
|
providerItem = QTreeWidgetItem()
|
|
provider = algList.getProviderFromName(providerName)
|
|
providerItem.setText(0, provider.getDescription())
|
|
providerItem.setToolTip(0, provider.getDescription())
|
|
providerItem.setIcon(0, provider.getIcon())
|
|
for groupItem in groups.values():
|
|
providerItem.addChild(groupItem)
|
|
self.algorithmTree.addTopLevelItem(providerItem)
|
|
providerItem.setExpanded(text != '')
|
|
for groupItem in groups.values():
|
|
if text != '':
|
|
groupItem.setExpanded(True)
|
|
|
|
self.algorithmTree.sortItems(0, Qt.AscendingOrder)
|
|
|
|
|
|
class TreeAlgorithmItem(QTreeWidgetItem):
|
|
|
|
def __init__(self, alg):
|
|
QTreeWidgetItem.__init__(self)
|
|
self.alg = alg
|
|
icon = alg.getIcon()
|
|
name = alg.displayName()
|
|
self.setIcon(0, icon)
|
|
self.setToolTip(0, name)
|
|
self.setText(0, name)
|