New, smaller dialog. More defaults, checks and failovers. Merged work of Stephan Meissl

git-svn-id: http://svn.osgeo.org/qgis/trunk@12120 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: rduivenvoorde

python/plugins/mapserver_export/__init__.py

@@ -24,7 +24,7 @@ def name():
 def description():
   return "Export a saved QGIS project file to a MapServer map file"
 def version(): 
-  return "Version 0.4" 
+  return "Version 0.4.1" 
 def qgisMinimumVersion(): 
   return "1.0"
 def authorName():

python/plugins/mapserver_export/mapserverexport.py

@@ -16,7 +16,7 @@
  *   (at your option) any later version.                                   *
  *                                                                         *
  ***************************************************************************/
-/* Adapted by Erik van de Pol, B3Partners BV. */
+/* Adapted by Erik van de Pol */
 """
 # Import the PyQt and QGIS libraries
 from PyQt4.QtCore import * 
@@ -55,6 +55,7 @@ def getThemeIcon(self, theName):
     else:
       return QIcon()
 
+
   def initGui(self):  
     # Create action that will start plugin configuration
     self.action = QAction(self.getThemeIcon("mapserver_export.png"), \
@@ -63,26 +64,31 @@ def initGui(self):
     # connect the action to the run method
     QObject.connect(self.action, SIGNAL("activated()"), self.run) 
     QObject.connect(self.iface, SIGNAL("currentThemeChanged ( QString )"), self.setCurrentTheme)
-
     # Add toolbar button and menu item
     self.iface.addToolBarIcon(self.action)
     self.iface.addPluginToMenu("&MapServer Export...", self.action)
 
+
   def unload(self):
     # Remove the plugin menu item and icon
     self.iface.removePluginMenu("&MapServer Export...",self.action)
     self.iface.removeToolBarIcon(self.action)
 
+
   # run method that performs all the real work
   def run(self): 
     # create and show the MapServerExport dialog 
     self.dlg = MapServerExportDialog()
-    #dlg.setupUi(self)
+    
+    # TODO: should come from settings
+    self.dlg.ui.txtMapFilePath.setText('/usr/lib/cgi-bin/kaas.map')
 
+    # project defaults to current instance
     project = QgsProject.instance()
+    
     # question: save project on loading export dialog?
     if project.isDirty():
-      shouldSave = QMessageBox.question(None,
+      shouldSave = QMessageBox.question(self.dlg,
                       "Save?",
                       "Save project to \"" + project.fileName() + "\" before exporting? Only the last saved version of your project will be exported.",
                       QMessageBox.Yes,
@@ -97,14 +103,31 @@ def run(self):
                       ".",
                       "QGIS Project Files (*.qgs)",
                       "Filter list for selecting files from a dialog box")
-          project.setFileName(saveAsFileName)
-        project.write()
+          # Check that a file was selected
+          if saveAsFileName.size() == 0:
+            QMessageBox.warning(self.dlg, "Not saved!", "QGis project file not saved because no file name was given.")
+            # fall back to using current project if available
+            self.dlg.ui.txtQgisFilePath.setText(project.fileName())
+          else:
+            project.setFileName(saveAsFileName)
+            project.write()
+        else:
+          project.write()
       elif shouldSave == QMessageBox.Cancel:
         return # do not show the export dialog
 
     self.dlg.ui.txtQgisFilePath.setText(project.fileName())
+    
+    # set title, or set default one if none available
+    title = project.title()
+    if title == "":
+      title = "QGisGeneratedMapfile"
     self.dlg.ui.txtMapName.setText(project.title())
-
+    
+    if self.dlg.ui.txtMapFilePath.text().size() == 0:
+      btnOk = self.dlg.ui.buttonBox.button(QDialogButtonBox.Ok)
+      btnOk.setEnabled(False)
+      
     # TODO: fetch unit used from QSettings
 
     # TODO: fetch width/height guess from QSettings:
@@ -119,94 +142,149 @@ def run(self):
     #self.dlg.ui.spinBoxScale.setValue(scale.toInt()[0])
 
     QObject.connect(self.dlg.ui.btnChooseFile, SIGNAL("clicked()"), self.setSaveFile)
+    QObject.connect(self.dlg.ui.txtMapFilePath, SIGNAL("textChanged(QString)"), self.mapfileChanged)
     QObject.connect(self.dlg.ui.btnChooseProjectFile, SIGNAL("clicked()"), self.setProjectFile)
     QObject.connect(self.dlg.ui.chkExpLayersOnly, SIGNAL("clicked(bool)"), self.toggleLayersOnly)
+    QObject.connect(self.dlg.ui.checkBoxCurrentProject, SIGNAL("clicked(bool)"), self.toggleUseCurrentProject)
     QObject.connect(self.dlg.ui.btnChooseFooterFile, SIGNAL("clicked()"), self.setFooterFile)
     QObject.connect(self.dlg.ui.btnChooseHeaderFile, SIGNAL("clicked()"), self.setHeaderFile)
     QObject.connect(self.dlg.ui.btnChooseTemplateFile, SIGNAL("clicked()"), self.setTemplateFile)
-
+    QObject.connect(self.dlg.ui.buttonBox, SIGNAL("accepted()"), self.ok_clicked)
+	
     self.dlg.show()
-    result = self.dlg.exec_() 
-    # See if OK was pressed
-    if result == 1: 
-      # get the settings from the dialog and export the map file
-      print "Creating exporter using %s and %s" % (self.dlg.ui.txtQgisFilePath.text(), self.dlg.ui.txtMapFilePath.text())
-      exporter = Qgis2Map(unicode(self.dlg.ui.txtQgisFilePath.text()), unicode(self.dlg.ui.txtMapFilePath.text()))
-      print "Setting options"
-
-      exporter.setOptions(
-          unicode(self.dlg.ui.txtMapServerUrl.text()),
-          unicode(self.dlg.ui.cmbMapUnits.itemData( self.dlg.ui.cmbMapUnits.currentIndex() ).toString()),
-          unicode(self.dlg.ui.cmbMapImageType.currentText()),
-          unicode(self.dlg.ui.txtMapName.text()),
-          unicode(self.dlg.ui.txtMapWidth.text()),
-          unicode(self.dlg.ui.txtMapHeight.text()),
-          unicode(self.dlg.ui.txtWebTemplate.text()),
-          unicode(self.dlg.ui.txtWebFooter.text()),
-          unicode(self.dlg.ui.txtWebHeader.text()),
-          self.dlg.ui.checkBoxDump.isChecked(),
-          self.dlg.ui.checkBoxForce.isChecked(),
-          self.dlg.ui.checkBoxAntiAlias.isChecked(),
-          self.dlg.ui.checkBoxPartials.isChecked(),
-          self.dlg.ui.chkExpLayersOnly.isChecked(),
-          unicode(self.dlg.ui.txtFontsetPath.text()),
-          unicode(self.dlg.ui.txtSymbolsetPath.text())
-          )
-      print "Calling writeMapFile"
+
+  def ok_clicked(self):
+    # Check if map file name is provided
+    if self.dlg.ui.txtMapFilePath.text().size() == 0:
+      saveAsFileName = QFileDialog.getSaveFileName(self.dlg,
+                    "Please choose to save map file as...",
+                    ".",
+                    "Map files (*.map)",
+                    "Filter list for selecting files from a dialog box")
+      # Check that a file was selected
+      if saveAsFileName.size() == 0:
+        QMessageBox.warning(self.dlg, "Not saved!", "Map file not saved because no file name was given")
+        return
+      else:
+        self.dlg.ui.txtMapFilePath.setText(saveAsFileName)
+        self.saveMapFile()
+
+    # Check if map file exists and we should overwrite it
+    elif QFile(self.dlg.ui.txtMapFilePath.text()).exists():
+      shouldOverwrite = QMessageBox.question(self.dlg,
+                    "Overwrite?",
+                    "Map file \"" + self.dlg.ui.txtMapFilePath.text() + "\" already exists. \nShould we overwrite it?",
+                    QMessageBox.Yes,
+                    QMessageBox.Cancel
+                    )
+      if shouldOverwrite == QMessageBox.Yes:
+        self.saveMapFile()
+      elif shouldOverwrite == QMessageBox.Cancel:
+        return
+        
+    else:
+      self.saveMapFile()
+
+  def toggleUseCurrentProject(self, boolUseCurrent):
+    self.dlg.ui.txtQgisFilePath.setEnabled(not boolUseCurrent)
+    self.dlg.ui.btnChooseProjectFile.setEnabled(not boolUseCurrent)
+    if boolUseCurrent:
+      if self.dlg.ui.txtQgisFilePath.text().size() == 0:
+        # reload path of current project
+        self.dlg.ui.txtQgisFilePath.setText(QgsProject.instance().fileName())
+        # check if current project is saved and/or dirty? Nope: will be done when Ok clicked
+    else:  
+      # open dialog to choose project file
+      self.setProjectFile()
+    
+    
+
+  def saveMapFile(self):
+    # get the settings from the dialog and export the map file  
+    print "Creating exporter using %s and %s" % (self.dlg.ui.txtQgisFilePath.text(), self.dlg.ui.txtMapFilePath.text())
+    if self.dlg.ui.txtQgisFilePath.text().size() == 0:
+      saveAsFileName = QFileDialog.getSaveFileName(self.dlg,
+                    "Please choose to save QGis project file as...",
+                    ".",
+                    "QGis files (*.qgs)",
+                    "Filter list for selecting files from a dialog box")
+      # Check that a file was selected
+      if saveAsFileName.size() == 0:
+        QMessageBox.warning(self.dlg, "Not saved!", "QGis project file not saved because no file name was given")
+        return
+      else:
+        self.dlg.ui.txtQgisFilePath.setText(saveAsFileName)
+        
+    exporter = Qgis2Map(unicode(self.dlg.ui.txtMapFilePath.text()))
+    
+    # Parse qgis project file and check success
+    if not(exporter.setQgsProject(self.dlg.ui.txtQgisFilePath.text())):
+      QMessageBox.warning(self.dlg, "Not saved!", "File not saved because no valid qgis project file was given.")
+      return
+    
+    self.dlg.hide()
+    print "Setting options"
+    exporter.setOptions(
+        unicode(self.dlg.ui.txtMapServerUrl.text()),
+        unicode(self.dlg.ui.cmbMapUnits.itemData( self.dlg.ui.cmbMapUnits.currentIndex() ).toString()),
+        unicode(self.dlg.ui.cmbMapImageType.currentText()),
+        unicode(self.dlg.ui.txtMapName.text()),
+        unicode(self.dlg.ui.txtMapWidth.text()),
+        unicode(self.dlg.ui.txtMapHeight.text()),
+        unicode(self.dlg.ui.txtWebTemplate.text()),
+        unicode(self.dlg.ui.txtWebHeader.text()),
+        unicode(self.dlg.ui.txtWebFooter.text()),
+        self.dlg.ui.checkBoxDump.isChecked(),
+        self.dlg.ui.checkBoxForce.isChecked(),
+        self.dlg.ui.checkBoxAntiAlias.isChecked(),
+        self.dlg.ui.checkBoxPartials.isChecked(),
+        self.dlg.ui.chkExpLayersOnly.isChecked(),
+        unicode(self.dlg.ui.txtFontsetPath.text()),
+        unicode(self.dlg.ui.txtSymbolsetPath.text())
+    )
+    print "Calling writeMapFile"
+    try:
       result = exporter.writeMapFile()
-      QMessageBox.information(None, "MapServer Export Results", result)
+    except Exception, err:
+      QMessageBox.information(self.dlg, "MapServer Export Error", str(err))
+      return
+      
+    QMessageBox.information(self.dlg, "MapServer Export Results", result)
+
+  def mapfileChanged(self, text):
+    # Enable OK button
+    btnOk = self.dlg.ui.buttonBox.button(QDialogButtonBox.Ok)
+    if text.size() > 0:
+      btnOk.setEnabled(True)
+    else:
+      btnOk.setEnabled(False)      
 
   def setSaveFile(self):
     mapFile = QFileDialog.getSaveFileName(self.dlg, "Name for the map file", \
       ".", "MapServer map files (*.map);;All files (*.*)","Filter list for selecting files from a dialog box")
     self.dlg.ui.txtMapFilePath.setText(mapFile)
-
+      
   def setProjectFile(self):
-    qgisProjectFile = QFileDialog.getOpenFileName(self.dlg, "Choose the QGIS Project file", \
-        ".", "QGIS Project Files (*.qgs);;All files (*.*)", "Filter list for selecting files from a dialog box")
+    qgisProjectFile = QFileDialog.getOpenFileName(self.dlg, "Choose a QGIS Project file", \
+      ".", "QGIS Project Files (*.qgs);;All files (*.*)", "Filter list for selecting files from a dialog box")
     self.dlg.ui.txtQgisFilePath.setText(qgisProjectFile)
 
   def setTemplateFile(self):
-    templateFile = QFileDialog.getOpenFileName(self.dlg, 
-        "Choose the MapServer template file", 
-        ".", 
-        "All files (*.*)", 
-        "Filter list for selecting files from a dialog box")
+    templateFile = QFileDialog.getOpenFileName(self.dlg, "Choose the MapServer template file", \
+      ".", "All files (*.*)", "Filter list for selecting files from a dialog box")
     self.dlg.ui.txtWebTemplate.setText(templateFile)
 
   def setHeaderFile(self):
-    headerFile = QFileDialog.getOpenFileName(self.dlg, 
-        "Choose the MapServer header file", 
-        ".", 
-        "All files (*.*)", 
-        "Filter list for selecting files from a dialog box")
+    headerFile = QFileDialog.getOpenFileName(self.dlg, "Choose the MapServer header file", \
+      ".", "All files (*.*)",  "Filter list for selecting files from a dialog box")
     self.dlg.ui.txtWebHeader.setText(headerFile)
 
   def setFooterFile(self):
-    footerFile = QFileDialog.getOpenFileName(self.dlg, 
-        "Choose the MapServer footer file", 
-        ".", 
-        "All files (*.*)", 
-        "Filter list for selecting files from a dialog box")
+    footerFile = QFileDialog.getOpenFileName(self.dlg, "Choose the MapServer footer file", \
+        ".", "All files (*.*)", "Filter list for selecting files from a dialog box")
     self.dlg.ui.txtWebFooter.setText(footerFile)
-
-  def apply(self):
-    # create the map file
-    foo = 'bar'
 
   def toggleLayersOnly(self, isChecked):
     # disable other sections if only layer export is desired
-    self.dlg.ui.txtMapName.setEnabled(not isChecked)
-    self.dlg.ui.txtMapWidth.setEnabled(not isChecked)
-    self.dlg.ui.txtMapHeight.setEnabled(not isChecked)
-    self.dlg.ui.cmbMapUnits.setEnabled(not isChecked)
-    self.dlg.ui.cmbMapImageType.setEnabled(not isChecked)
-    self.dlg.ui.txtMapServerUrl.setEnabled(not isChecked)
-    self.dlg.ui.txtFontsetPath.setEnabled(not isChecked)
-    self.dlg.ui.txtSymbolsetPath.setEnabled(not isChecked)
-    self.dlg.ui.txtWebTemplate.setEnabled(not isChecked)
-    self.dlg.ui.txtWebHeader.setEnabled(not isChecked)
-    self.dlg.ui.txtWebFooter.setEnabled(not isChecked)
-    self.dlg.ui.btnChooseFooterFile.setEnabled(not isChecked)
-    self.dlg.ui.btnChooseHeaderFile.setEnabled(not isChecked)
-    self.dlg.ui.btnChooseTemplateFile.setEnabled(not isChecked)
+    self.dlg.ui.grpPaths.setEnabled(not isChecked)
+    self.dlg.ui.grpMap.setEnabled(not isChecked)