[processing] better sizing of columns in batch interface

fixes #12706

python/plugins/processing/gui/BatchInputSelectionPanel.py

@@ -53,6 +53,7 @@ def __init__(self, param, row, col, panel):
         self.horizontalLayout.setSpacing(0)
         self.horizontalLayout.setMargin(0)
         self.text = QLineEdit()
+        self.text.setMinimumWidth(300)
         self.text.setText('')
         self.text.setSizePolicy(QSizePolicy.Expanding,
                                 QSizePolicy.Expanding)

python/plugins/processing/gui/BatchOutputSelectionPanel.py

@@ -56,6 +56,7 @@ def __init__(self, output, alg, row, col, panel):
         self.horizontalLayout.setMargin(0)
         self.text = QLineEdit()
         self.text.setText('')
+        self.text.setMinimumWidth(300)
         self.text.setSizePolicy(QSizePolicy.Expanding,
                                 QSizePolicy.Expanding)
         self.horizontalLayout.addWidget(self.text)

python/plugins/processing/gui/BatchPanel.py

@@ -28,7 +28,7 @@
 import os
 
 from PyQt4 import uic
-from PyQt4.QtGui import QWidget, QIcon, QTableWidgetItem, QComboBox, QLineEdit
+from PyQt4.QtGui import QWidget, QIcon, QTableWidgetItem, QComboBox, QLineEdit, QHeaderView
 
 from qgis.core import QgsApplication
 
@@ -119,6 +119,15 @@ def initWidgets(self):
         for i in xrange(3):
             self.addRow()
 
+        self.tblParameters.horizontalHeader().setResizeMode(QHeaderView.Interactive)
+        self.tblParameters.horizontalHeader().setDefaultSectionSize(250)
+        self.tblParameters.horizontalHeader().setMinimumSectionSize(150)
+        self.tblParameters.horizontalHeader().setResizeMode(QHeaderView.ResizeToContents)
+        self.tblParameters.verticalHeader().setResizeMode(QHeaderView.ResizeToContents)
+        self.tblParameters.horizontalHeader().setStretchLastSection(True)
+
+
+
     def getWidgetFromParameter(self, param, row, col):
         if isinstance(param, (ParameterRaster, ParameterVector, ParameterTable,
                               ParameterMultipleInput)):