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changes needed to have a more intuitive way of choosing between: expo…
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…rting the current loaded project, or a project browsed to by the user. Because postgis layers need more info (primary keys) we ask the user to load a project which holds postgis layers. But warn him if he cancelled.

git-svn-id: http://svn.osgeo.org/qgis/trunk@12292 c8812cc2-4d05-0410-92ff-de0c093fc19c
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rduivenvoorde committed Nov 29, 2009
1 parent c24c1af commit fe606b7
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Showing 3 changed files with 149 additions and 67 deletions.
2 changes: 1 addition & 1 deletion python/plugins/mapserver_export/__init__.py
View file
Expand Up @@ -24,7 +24,7 @@ def name():
def description():
return "Export a saved QGIS project file to a MapServer map file"
def version():
return "Version 0.4.2"
return "Version 0.4.3"
def qgisMinimumVersion():
return "1.0"
def authorName():
Expand Down
147 changes: 100 additions & 47 deletions python/plugins/mapserver_export/mapserverexport.py
View file
Expand Up @@ -36,7 +36,6 @@ def __init__(self, iface):
# Save reference to the QGIS interface
self.iface = iface

# ----------------------------------------- #
def setCurrentTheme(self, theThemeName):
# Set icons to the current theme
self.action.setIcon(self.getThemeIcon("mapserver_export.png"))
Expand All @@ -55,31 +54,26 @@ 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"), \
"MapServer Export", self.iface.mainWindow())
#self.action.setWhatsThis("Configuration for Zoom To Point plugin")
# 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()

# attach events to inputs and buttons
QObject.connect(self.dlg.ui.btnChooseFile, SIGNAL("clicked()"), self.setMapFile)
QObject.connect(self.dlg.ui.txtMapFilePath, SIGNAL("textChanged(QString)"), self.mapfileChanged)
Expand All @@ -90,12 +84,9 @@ def run(self):
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)

# qgs-project
# defaults to current instance
# qgs-project defaults to current instance
project = QgsProject.instance()
self.dlg.ui.txtQgisFilePath.setText(project.fileName())

# get some settings from former successfull exports
# defaults are defined in ms_export.py and set in mapserverexportdialog.py
settings = QSettings()
Expand All @@ -115,64 +106,47 @@ def run(self):
# MapServer URL (default value already set by dialog defaults)
if settings.contains("/MapserverExport/mapserverUrl"):
self.dlg.ui.txtMapServerUrl.setText(settings.value("/MapserverExport/mapserverUrl").toString())


# set title or default to one if none available
title = project.title()
if title == "":
title = "QGIS-MAP"
self.dlg.ui.txtMapName.setText(title)

# TODO: fetch units used from current project
# QGIS: Meters, Feet, Degrees, UnknownUnit since 1.4 also: DecimalDegrees, DegreesMinutesSeconds, DegreesDecimalMinutes
# Mapserver: UNITS [feet|inches|kilometers|meters|miles|dd]

self.dlg.show()

def ok_clicked(self):
if self.checkMapFile():
self.saveMapFile()
else:
# check if current project is saved or dirty
if not self.checkCurrentProject():
# abort because user apparently did not wat to save or Cancelled
return
if not self.checkMapFile():
print "Failed for Map file check, try again..."
pass
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
#if self.dlg.ui.txtQgisFilePath.text().size() == 0:
# reload path of current project
self.dlg.ui.txtQgisFilePath.setText(QgsProject.instance().fileName())
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)

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())
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.")
QMessageBox.warning(self.dlg, "No Map file export!", "Map file not exported because no valid qgis project file was given.")
return

self.dlg.hide()
print "Setting options"
exporter.setOptions(
Expand Down Expand Up @@ -233,21 +207,100 @@ def checkMapFile(self):
self.dlg.ui.txtMapFilePath.setText(mapFileName)
# Check if map file exists and we should overwrite it
if QFile(mapFileName).exists():
if QMessageBox.Cancel == QMessageBox.question(self.dlg, "Overwrite?",
if QMessageBox.Cancel == QMessageBox.question(self.dlg, "Overwrite excisting Map file?",
"Map file \"" + mapFileName + "\" already exists. \nShould we overwrite it?",
QMessageBox.Yes, QMessageBox.Cancel):
return False
# mapfile ok, extension ok, ok to overwrite
# mapfile ok, extension ok, overwrite ok
return True


# check if current project is saved and or dirty (has modifications)
def checkCurrentProject(self, forUnload=False):
project = QgsProject.instance()
# question: save project on loading export dialog?
if project.isDirty():
msg = "Save project to \"" + project.fileName() + "\" before exporting?\nOnly the last saved version of your project will be exported."
if project.fileName()=="":
msg = "Please save project before exporting.\nOnly saved projects can be exported."
if forUnload:
msg = "Save project first?\nAfter saving, this project will be unloaded."
shouldSave = QMessageBox.question(self.dlg, "Save?", msg,
QMessageBox.Yes, QMessageBox.No, QMessageBox.Cancel)
if shouldSave == QMessageBox.Yes:
if project.fileName().size() == 0:
# project has not yet been saved:
saveAsFileName = QFileDialog.getSaveFileName(self.dlg,
"Save QGIS Project file as...", ".",
"QGIS Project 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.")
# fall back to using current project if available
self.dlg.ui.txtQgisFilePath.setText(project.fileName())
else:
if not saveAsFileName.trimmed().endsWith('.qgs'):
saveAsFileName += '.qgs'
self.dlg.ui.txtQgisFilePath.setText(saveAsFileName)
project.setFileName(saveAsFileName)
project.write()
else:
project.write()
#project ok now
return True
elif shouldSave == QMessageBox.No and forUnload:
# unloading a non saved project: just leave ...
return True
elif shouldSave == QMessageBox.No:
# users does not want to save project, but has to because only saved projects can be exported
return False
elif shouldSave == QMessageBox.Cancel:
# user cancelled
return False
else:
# project saved and not dirty
return True

def setMapFile(self):
mapFileName = QFileDialog.getSaveFileName(self.dlg, "Name for the map file", \
self.dlg.ui.txtMapFilePath.text(), "MapServer map files (*.map);;All files (*.*)","Filter list for selecting files from a dialog box")
self.dlg.ui.txtMapFilePath.setText(mapFileName)

def setProjectFile(self):
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")
# check if it's needed to save current project, will return False if user cancelled
if not self.checkCurrentProject(True):
return
qgisProjectFile = QFileDialog.getOpenFileName(self.dlg, "Choose a QGIS Project", \
".", "QGIS Project Files (*.qgs);;", "Filter list for selecting files from a dialog box")
if not qgisProjectFile:
# cancelled: check checkBoxCurrentProject again
self.dlg.ui.checkBoxCurrentProject.setChecked(True)
self.dlg.ui.txtQgisFilePath.setEnabled(False)
return
try:
# reading a nog qgs or not existing file results in qgis crash
# QgsProject.instance().read(QFileInfo(qgisProjectFile))
# we try to open the file first to see if it can be parsed...
exporter = Qgis2Map(unicode(self.dlg.ui.txtMapFilePath.text()))
if exporter.setQgsProject(qgisProjectFile):
# project file OK !!
pass
if exporter.projectHasPostgisLayers():
loadProject = QMessageBox.question(self.dlg, "Load project?",
"The project you selected holds one or more postgis layers. \nTo be able to export a valid DATA string in the map file,\nthe project should be loaded into QGIS. \nNot loading can result in non valid DATA strings in map file.\nSo, should we load it into qgis?",
QMessageBox.Yes, QMessageBox.No)
if loadProject == QMessageBox.Yes:
QgsProject.instance().read(QFileInfo(qgisProjectFile))
else:
# postgis, but user refuses to load it, just go and see what happens
pass
else:
# NO postgis, go
pass
except QgsException, err:
QMessageBox.information(self.dlg, "Error reading or loading the selected project file", str(err))
self.dlg.ui.checkBoxCurrentProject.setChecked(True)
self.dlg.ui.txtQgisFilePath.setEnabled(False)
return
self.dlg.ui.txtQgisFilePath.setText(qgisProjectFile)

def setTemplateFile(self):
Expand Down

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