[processing] use QgsMessage bar in algorithm dialogs

Author: volaya

python/plugins/processing/gui/AlgorithmDialog.py

@@ -29,9 +29,10 @@
 
 from qgis.PyQt.QtCore import Qt
 from qgis.PyQt.QtWidgets import QMessageBox, QApplication, QPushButton, QWidget, QVBoxLayout
-from qgis.PyQt.QtGui import QCursor, QColor, QPalette
+from qgis.PyQt.QtGui import QCursor, QColor, QPalette, QSizePolicy
 
 from qgis.core import QgsMapLayerRegistry
+from qgis.gui import QgsMessageBar
 
 from processing.core.ProcessingLog import ProcessingLog
 from processing.core.ProcessingConfig import ProcessingConfig
@@ -71,6 +72,10 @@ def __init__(self, alg):
 
         self.setMainWidget(ParametersPanel(self, alg))
 
+        self.bar = QgsMessageBar()
+        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
+        self.layout().insertWidget(0, self.bar)
+
         self.cornerWidget = QWidget()
         layout = QVBoxLayout()
         layout.setContentsMargins(0, 0, 0, 5)
@@ -179,13 +184,11 @@ def accept(self):
                 palette = e.widget.palette()
                 palette.setColor(QPalette.Base, QColor(255, 255, 0))
                 e.widget.setPalette(palette)
-                self.lblProgress.setText(
-                    self.tr('<b>Missing parameter value: %s</b>') % e.parameter.description)
-                return
             except:
-                QMessageBox.critical(self,
-                                     self.tr('Unable to execute algorithm'),
-                                     self.tr('Wrong or missing parameter values'))
+                pass
+            self.bar.clearWidgets()
+            self.bar.pushMessage("", "Wrong or missing parameter value: %s" % e.parameter.description,
+                                 level=QgsMessageBar.WARNING, duration=5)
 
     def finish(self):
         keepOpen = ProcessingConfig.getSetting(ProcessingConfig.KEEP_DIALOG_OPEN)

python/plugins/processing/gui/BatchPanel.py

@@ -35,6 +35,7 @@
 from qgis.PyQt.QtWidgets import QTableWidgetItem, QComboBox, QLineEdit, QHeaderView, QFileDialog, QMessageBox
 
 from qgis.core import QgsApplication
+from qgis.gui import QgsMessageBar
 
 from processing.gui.BatchOutputSelectionPanel import BatchOutputSelectionPanel
 from processing.gui.GeometryPredicateSelectionPanel import GeometryPredicateSelectionPanel
@@ -88,8 +89,8 @@ def __init__(self, parent, alg):
             self.fillParameterValues)
 
         self.initWidgets()
-        
-        
+
+
     def layerRegistryChanged(self):
         pass
 
@@ -192,8 +193,9 @@ def save(self):
                     continue
                 wrapper = self.wrappers[row][col]
                 if not self.setParamValue(param, wrapper, alg):
-                    self.parent.lblProgress.setText(
-                        self.tr('<b>Missing parameter value: %s (row %d)</b>') % (param.description, row + 1))
+                    self.parent.bar.pushMessage("", self.tr('Wrong or missing parameter value: %s (row %d)')
+                                         % (param.description, row + 1),
+                                         level=QgsMessageBar.WARNING, duration=5)
                     return
                 algParams[param.name] = param.getValueAsCommandLineParameter()
                 col += 1
@@ -206,8 +208,9 @@ def save(self):
                     algOutputs[out.name] = text.strip()
                     col += 1
                 else:
-                    self.parent.lblProgress.setText(
-                        self.tr('<b>Wrong or missing parameter value: %s (row %d)</b>') % (out.description, row + 1))
+                    self.parent.bar.pushMessage("", self.tr('Wrong or missing output value: %s (row %d)')
+                                                % (out.description, row + 1),
+                                                level=QgsMessageBar.WARNING, duration=5)
                     return
             toSave.append({self.PARAMETERS: algParams, self.OUTPUTS: algOutputs})
 
@@ -267,7 +270,7 @@ def fillParameterValues(self, column):
         wrapper = self.wrappers[0][column]
         for row in range(1, self.tblParameters.rowCount()):
             self.wrappers[row][column].setValue(wrapper.value())
-            
+
     def toggleAdvancedMode(self, checked):
         for column, param in enumerate(self.alg.parameters):
             if param.isAdvanced:

python/plugins/processing/preconfigured/PreconfiguredAlgorithmDialog.py

@@ -38,6 +38,8 @@
 from qgis.PyQt.QtWidgets import QMessageBox, QVBoxLayout, QLabel, QLineEdit, QWidget
 from qgis.PyQt.QtGui import QPalette, QColor
 
+from qgis.gui import QgsMessageBar
+
 
 class PreconfiguredAlgorithmDialog(AlgorithmDialog):
 
@@ -77,8 +79,9 @@ def accept(self):
                 palette = e.widget.palette()
                 palette.setColor(QPalette.Base, QColor(255, 255, 0))
                 e.widget.setPalette(palette)
-                self.lblProgress.setText(
-                    self.tr('<b>Missing parameter value: %s</b>') % e.parameter.description)
+                self.parent.bar.pushMessage("", self.tr('Missing parameter value: %s')
+                                     % e.parameter.description,
+                                     level=QgsMessageBar.WARNING, duration=5)
                 return
             except:
                 QMessageBox.critical(self,