[processing] allow selection of open layers in batch interface

Author: volaya

python/plugins/processing/gui/BatchInputSelectionPanel.py

@@ -28,6 +28,11 @@
 import os
 from PyQt4 import QtGui, QtCore
 from processing.parameters.ParameterMultipleInput import ParameterMultipleInput
+from processing.gui.MultipleInputDialog import MultipleInputDialog
+from processing.tools import dataobjects
+from processing.parameters.ParameterRaster import ParameterRaster
+from processing.parameters.ParameterVector import ParameterVector
+from processing.parameters.ParameterTable import ParameterTable
 
 
 class BatchInputSelectionPanel(QtGui.QWidget):
@@ -49,11 +54,55 @@ def __init__(self, param, row, col, batchDialog, parent=None):
         self.horizontalLayout.addWidget(self.text)
         self.pushButton = QtGui.QPushButton()
         self.pushButton.setText('...')
-        self.pushButton.clicked.connect(self.showSelectionDialog)
+        self.pushButton.clicked.connect(self.showPopupMenu)                
         self.horizontalLayout.addWidget(self.pushButton)
         self.setLayout(self.horizontalLayout)
+        
+    def showPopupMenu(self):
+        popupmenu = QtGui.QMenu()
+        if not (isinstance(self.param, ParameterMultipleInput) 
+                    and self.param.datatype == ParameterMultipleInput.TYPE_FILE):
+            selectLayerAction = QtGui.QAction('Select from open layers',
+                self.pushButton)
+            selectLayerAction.triggered.connect(self.showLayerSelectionDialog)
+            popupmenu.addAction(selectLayerAction)
+        selectFileAction = QtGui.QAction('Select from filesystem',
+                self.pushButton)
+        selectFileAction.triggered.connect(self.showFileSelectionDialog)
+        popupmenu.addAction(selectFileAction)
+        popupmenu.exec_(QtGui.QCursor.pos())        
 
-    def showSelectionDialog(self):
+    def showLayerSelectionDialog(self):
+        if (isinstance(self.param, ParameterRaster)
+                or (isinstance(self.param, ParameterMultipleInput) 
+                    and self.param.datatype == ParameterMultipleInput.TYPE_RASTER)):
+            layers = dataobjects.getRasterLayers()  
+        elif isinstance(self.param, ParameterTable):
+            layers = dataobjects.getTables()    
+        else:
+            if isinstance(self.param, ParameterVector):
+                datatype = self.param.shapetype
+            else:
+                datatype = [self.param.datatype]
+            layers = dataobjects.getVectorLayers(datatype)            
+        dlg = MultipleInputDialog([layer.name() for layer in layers])
+        dlg.exec_()
+        if dlg.selectedoptions is not None:            
+            selected = dlg.selectedoptions            
+            if len(selected) == 1:
+                self.text.setText(layers[selected[0]])
+            else:                
+                if isinstance(self.param, ParameterMultipleInput):
+                    self.text.setText(';'.join(layers[idx].name() for idx in selected))
+                else:
+                    rowdif = len(layers) - (self.table.rowCount() - self.row)
+                    for i in range(rowdif):
+                        self.batchDialog.addRow()
+                    for i, layeridx in enumerate(selected):
+                        self.table.cellWidget(i + self.row,
+                                self.col).setText(layers[layeridx].name())
+        
+    def showFileSelectionDialog(self):
         settings = QtCore.QSettings()
         text = unicode(self.text.text())
         if os.path.isdir(text):
@@ -72,7 +121,7 @@ def showSelectionDialog(self):
             if len(files) == 1:
                 settings.setValue('/Processing/LastInputPath',
                                   os.path.dirname(unicode(files[0])))
-                self.text.setText(str(files[0]))
+                self.text.setText(files[0])
             else:
                 settings.setValue('/Processing/LastInputPath',
                                   os.path.dirname(unicode(files[0])))
@@ -82,9 +131,9 @@ def showSelectionDialog(self):
                     rowdif = len(files) - (self.table.rowCount() - self.row)
                     for i in range(rowdif):
                         self.batchDialog.addRow()
-                    for i in range(len(files)):
+                    for i, f in enumerate(files):
                         self.table.cellWidget(i + self.row,
-                                self.col).setText(files[i])
+                                self.col).setText(f)
 
     def setText(self, text):
         return self.text.setText(text)

python/plugins/processing/gui/BatchProcessingDialog.py

@@ -25,7 +25,7 @@
 
 __revision__ = '$Format:%H$'
 
-from PyQt4 import QtCore, QtGui
+from PyQt4 import QtGui
 from PyQt4.QtCore import *
 from PyQt4.QtGui import *
 from processing.core.ProcessingResults import ProcessingResults
@@ -86,8 +86,10 @@ def __init__(self, alg):
         self.buttonBox.addButton(self.deleteRowButton,
                                  QtGui.QDialogButtonBox.ActionRole)
 
+        nOutputs = self.alg.getVisibleOutputsCount() + 1
+        if nOutputs == 1: nOutputs = 0
         self.table.setColumnCount(self.alg.getVisibleParametersCount()
-                                  + self.alg.getVisibleOutputsCount() + 1)
+                                  + nOutputs)
         self.setTableContent()
         self.table.horizontalHeader().setStretchLastSection(True)
         self.table.verticalHeader().setVisible(False)
@@ -146,8 +148,9 @@ def setTableContent(self):
                         QtGui.QTableWidgetItem(out.description))
                 i += 1
 
-        self.table.setColumnWidth(i, 200)
-        self.table.setHorizontalHeaderItem(i,
+        if self.alg.getVisibleOutputsCount():
+            self.table.setColumnWidth(i, 200)
+            self.table.setHorizontalHeaderItem(i,
                 QtGui.QTableWidgetItem('Load in QGIS'))
 
         for i in range(3):
@@ -314,21 +317,26 @@ def addRow(self):
         self.table.setRowHeight(self.table.rowCount() - 1, 22)
         i = 0
         for param in self.alg.parameters:
+            if param.hidden:
+                continue
             self.table.setCellWidget(self.table.rowCount() - 1, i,
                                      self.getWidgetFromParameter(param,
                                      self.table.rowCount() - 1, i))
             i += 1
         for out in self.alg.outputs:
+            if out.hidden:
+                continue
             self.table.setCellWidget(self.table.rowCount() - 1, i,
                                      BatchOutputSelectionPanel(out, self.alg,
                                      self.table.rowCount() - 1, i, self))
             i += 1
 
-        item = QtGui.QComboBox()
-        item.addItem('Yes')
-        item.addItem('No')
-        item.setCurrentIndex(0)
-        self.table.setCellWidget(self.table.rowCount() - 1, i, item)
+        if self.alg.getVisibleOutputsCount():
+            item = QtGui.QComboBox()
+            item.addItem('Yes')
+            item.addItem('No')
+            item.setCurrentIndex(0)
+            self.table.setCellWidget(self.table.rowCount() - 1, i, item)
 
     def showAdvancedParametersClicked(self):
         self.showAdvanced = not self.showAdvanced

python/plugins/processing/gui/MultipleInputDialog.py

@@ -38,7 +38,7 @@ def __init__(self, options, selectedoptions=None):
         self.setupUi(self)
 
         self.options = options
-        self.selectedoptions = selectedoptions
+        self.selectedoptions = selectedoptions or []
 
         # Additional buttons
         self.btnSelectAll = QPushButton(self.tr('Select all'))

python/plugins/processing/tools/dataobjects.py

@@ -66,7 +66,7 @@ def getSupportedOutputTableExtensions():
 
 def getRasterLayers():
     layers = QgsMapLayerRegistry.instance().mapLayers().values()
-    raster = list()
+    raster = []
 
     for layer in layers:
         if layer.type() == layer.RasterLayer: