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[processing] added drag&drop support in modeler

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This commit is contained in:
Victor Olaya 2014-03-26 13:37:40 +01:00
parent 36bd2d000a
commit 92ee039f10
1 changed files with 65 additions and 2 deletions
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67
python/plugins/processing/modeler/ModelerDialog.py
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@ -65,7 +65,62 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
self.scene = ModelerScene(self)
self.scene.setSceneRect(QRectF(0, 0, 4000, 4000))
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()
print text
if text in ModelerParameterDefinitionDialog.paramTypes:
self.addInputOfType(text)
else:
alg = ModelerUtils.getAlgorithm(text);
if alg is not None:
self._addAlgorithm(alg)
event.accept()
else:
event.ignore()
def _dragMoveEvent(event):
if event.mimeData().hasText():
event.accept()
else:
event.ignore()
self.view.dragEnterEvent = _dragEnterEvent
self.view.dropEvent = _dropEvent
self.view.dragMoveEvent = _dragMoveEvent
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(
@ -285,9 +340,13 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
self.scene.paintModel(self.alg)
self.view.setScene(self.scene)
def addInput(self):
item = self.inputsTree.currentItem()
paramType = str(item.text(0))
self.addInputOfType(paramType)
def addInputOfType(self, paramType):
if paramType in ModelerParameterDefinitionDialog.paramTypes:
dlg = ModelerParameterDefinitionDialog(self.alg, paramType)
dlg.exec_()
@ -301,11 +360,12 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
self.hasChanged = True
def fillInputsTree(self):
parametersItem = QTreeWidgetItem()
parametersItem = QTreeWidgetItem()
parametersItem.setText(0, self.tr('Parameters'))
for paramType in ModelerParameterDefinitionDialog.paramTypes:
paramItem = QTreeWidgetItem()
paramItem.setText(0, paramType)
paramItem.setFlags(Qt.ItemIsEnabled | Qt.ItemIsSelectable | Qt.ItemIsDragEnabled)
parametersItem.addChild(paramItem)
self.inputsTree.addTopLevelItem(parametersItem)
parametersItem.setExpanded(True)
@ -314,7 +374,10 @@ class ModelerDialog(QDialog, Ui_DlgModeler):
item = self.algorithmTree.currentItem()
if isinstance(item, TreeAlgorithmItem):
alg = ModelerUtils.getAlgorithm(item.alg.commandLineName())
alg = alg.getCopy()
self._addAlgorithm(alg)
def _addAlgorithm(self, alg):
alg = alg.getCopy()
dlg = alg.getCustomModelerParametersDialog(self.alg)
if not dlg:
dlg = ModelerParametersDialog(alg, self.alg)