class _FileWatcher(QObject):
"""File watcher.
QFileSystemWatcher notifies client about any change (file access mode, modification date, etc.)
But, we need signal, only after file contents had been changed
"""
modified = pyqtSignal(bool)
removed = pyqtSignal(bool)
def __init__(self, path):
QObject.__init__(self)
self._contents = None
self._watcher = QFileSystemWatcher()
self._timer = None
self._path = path
self._lastEmittedModifiedStatus = None
self._lastEmittedRemovedStatus = None
self.setPath(path)
self.enable()
def __del__(self):
self._stopTimer()
def enable(self):
"""Enable signals from the watcher
"""
self._watcher.fileChanged.connect(self._onFileChanged)
def disable(self):
"""Disable signals from the watcher
"""
self._watcher.fileChanged.disconnect(self._onFileChanged)
self._stopTimer()
def setContents(self, contents):
"""Set file contents. Watcher uses it to compare old and new contents of the file.
"""
self._contents = contents
# Qt File watcher may work incorrectly, if file was not existing, when it started
if not self._watcher.files():
self.setPath(self._path)
self._lastEmittedModifiedStatus = None
self._lastEmittedRemovedStatus = None
def setPath(self, path):
"""Path had been changed or file had been created. Set new path
"""
if self._watcher.files():
self._watcher.removePaths(self._watcher.files())
if path is not None and os.path.isfile(path):
self._watcher.addPath(path)
self._path = path
self._lastEmittedModifiedStatus = None
self._lastEmittedRemovedStatus = None
def _emitModifiedStatus(self):
"""Emit self.modified signal with right status
"""
isModified = self._contents != self._safeRead(self._path)
if isModified != self._lastEmittedModifiedStatus:
self.modified.emit(isModified)
self._lastEmittedModifiedStatus = isModified
def _emitRemovedStatus(self, isRemoved):
"""Emit 'removed', if status changed"""
if isRemoved != self._lastEmittedRemovedStatus:
self._lastEmittedRemovedStatus = isRemoved
self.removed.emit(isRemoved)
def _onFileChanged(self):
"""File changed. Emit own signal, if contents changed
"""
if os.path.exists(self._path):
self._emitModifiedStatus()
else:
self._emitRemovedStatus(True)
# Sometimes QFileSystemWatcher emits only 1 signal for 2 modifications
# Check once more later
self._startTimer()
def _startTimer(self):
"""Init a timer.
It is used for monitoring file after deletion.
Git removes file, than restores it.
"""
if self._timer is None:
self._timer = QTimer()
self._timer.setInterval(500)
self._timer.timeout.connect(self._onCheckIfDeletedTimer)
self._timer.start()
def _stopTimer(self):
"""Stop timer, if exists
"""
if self._timer is not None:
self._timer.stop()
def _onCheckIfDeletedTimer(self):
"""Check, if file has been restored
"""
if os.path.exists(self._path):
self.setPath(self._path) # restart Qt file watcher after file has been restored
self._stopTimer()
self._emitRemovedStatus(False)
self._emitModifiedStatus()
def _safeRead(self, path):
"""Read file. Ignore exceptions
"""
try:
with open(path, 'rb') as file:
return file.read()
except (OSError, IOError):
return None
class ProjectWidget(Ui_Form, QWidget):
SampleWidgetRole = Qt.UserRole + 1
projectsaved = pyqtSignal()
projectupdated = pyqtSignal(object)
projectloaded = pyqtSignal(object)
selectlayersupdated = pyqtSignal(list)
def __init__(self, parent=None):
super(ProjectWidget, self).__init__(parent)
self.setupUi(self)
self.project = None
self.bar = None
self.roamapp = None
menu = QMenu()
# self.roamVersionLabel.setText("You are running IntraMaps Roam version {}".format(roam.__version__))
self.openProjectFolderButton.pressed.connect(self.openprojectfolder)
self.openinQGISButton.pressed.connect(self.openinqgis)
self.depolyProjectButton.pressed.connect(self.deploy_project)
self.depolyInstallProjectButton.pressed.connect(
functools.partial(self.deploy_project, True))
self.filewatcher = QFileSystemWatcher()
self.filewatcher.fileChanged.connect(self.qgisprojectupdated)
self.projectupdatedlabel.linkActivated.connect(self.reloadproject)
self.projectupdatedlabel.hide()
# self.setpage(4)
self.currentnode = None
self.form = None
qgislocation = r'C:\OSGeo4W\bin\qgis.bat'
qgislocation = roam.config.settings.setdefault('configmanager', {}) \
.setdefault('qgislocation', qgislocation)
self.qgispathEdit.setText(qgislocation)
self.qgispathEdit.textChanged.connect(self.save_qgis_path)
self.filePickerButton.pressed.connect(self.set_qgis_path)
self.connect_page_events()
def connect_page_events(self):
"""
Connect the events from all the pages back to here
"""
for index in range(self.stackedWidget.count()):
widget = self.stackedWidget.widget(index)
if hasattr(widget, "raiseMessage"):
widget.raiseMessage.connect(self.bar.pushMessage)
def set_qgis_path(self):
"""
Set the location of the QGIS install. We need the path to be able to create Roam
projects
"""
path = QFileDialog.getOpenFileName(self,
"Select QGIS install file",
filter="(*.bat)")
if not path:
return
self.qgispathEdit.setText(path)
self.save_qgis_path(path)
def save_qgis_path(self, path):
"""
Save the QGIS path back to the Roam config.
"""
roam.config.settings['configmanager'] = {'qgislocation': path}
roam.config.save()
def setpage(self, page, node):
"""
Set the current page in the config manager. We pass the project into the current
page so that it knows what the project is.
"""
self.currentnode = node
self.write_config_currentwidget()
self.stackedWidget.setCurrentIndex(page)
widget = self.stackedWidget.currentWidget()
if hasattr(widget, "set_project"):
widget.set_project(self.project, self.currentnode)
def write_config_currentwidget(self):
"""
Call the write config command on the current widget.
"""
widget = self.stackedWidget.currentWidget()
if hasattr(widget, "write_config"):
widget.write_config()
def deploy_project(self, with_data=False):
"""
Run the step to deploy a project. Projects are deplyed as a bundled zip of the project folder.
"""
if self.roamapp.sourcerun:
base = os.path.join(self.roamapp.apppath, "..")
else:
base = self.roamapp.apppath
default = os.path.join(base, "roam_serv")
path = roam.config.settings.get("publish", {}).get("path", '')
if not path:
path = default
path = os.path.join(path, "projects")
if not os.path.exists(path):
os.makedirs(path)
self._saveproject()
options = {}
bundle.bundle_project(self.project,
path,
options,
as_install=with_data)
def setaboutinfo(self):
"""
Set the current about info on the widget
"""
self.versionLabel.setText(roam.__version__)
self.qgisapiLabel.setText(unicode(QGis.QGIS_VERSION))
def selectlayerschanged(self, *args):
"""
Run the updates when the selection layers have changed
"""
self.formlayers.setSelectLayers(self.project.selectlayers)
self.selectlayersupdated.emit(self.project.selectlayers)
def reloadproject(self, *args):
"""
Reload the project. At the moment this will drop any unsaved changes to the config.
Note: Should look at making sure it doesn't do that because it's not really needed.
"""
self.projectupdated.emit(self.project)
# self.setproject(self.project)
def qgisprojectupdated(self, path):
"""
Show a message when the QGIS project file has been updated.
"""
self.projectupdatedlabel.show()
self.projectupdatedlabel.setText(
"The QGIS project has been updated. <a href='reload'> "
"Click to reload</a>. <b style=\"color:red\">Unsaved data will be lost</b>"
)
def openinqgis(self):
"""
Open a QGIS session for the user to config the project layers.
"""
try:
openqgis(self.project.projectfile)
except OSError:
self.bar.pushMessage("Looks like I couldn't find QGIS",
"Check qgislocation in roam.config",
QgsMessageBar.WARNING)
def openprojectfolder(self):
"""
Open the project folder in the file manager for the OS.
"""
folder = self.project.folder
openfolder(folder)
def setproject(self, project, loadqgis=True):
"""
Set the widgets active project.
"""
self.filewatcher.removePaths(self.filewatcher.files())
self.projectupdatedlabel.hide()
self._closeqgisproject()
if project.valid:
self.startsettings = copy.deepcopy(project.settings)
self.project = project
self.projectlabel.setText(project.name)
self.loadqgisproject(project, self.project.projectfile)
self.filewatcher.addPath(self.project.projectfile)
self.projectloaded.emit(self.project)
def loadqgisproject(self, project, projectfile):
print("Load QGIS Project!!")
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
# No idea why we have to set this each time. Maybe QGIS deletes it for
# some reason.
self.badLayerHandler = BadLayerHandler(callback=self.missing_layers)
QgsProject.instance().setBadLayerHandler(self.badLayerHandler)
QgsProject.instance().read(fileinfo)
def missing_layers(self, missinglayers):
"""
Handle any and show any missing layers.
"""
self.project.missing_layers = missinglayers
def _closeqgisproject(self):
"""
Close the current QGIS project and clean up after..
"""
QGIS.close_project()
def _saveproject(self):
"""
Save the project config to disk.
"""
self.write_config_currentwidget()
# self.project.dump_settings()
self.project.save(update_version=True)
self.filewatcher.removePaths(self.filewatcher.files())
QgsProject.instance().write()
self.filewatcher.addPath(self.project.projectfile)
self.projectsaved.emit()
class ProjectWidget(Ui_Form, QWidget):
SampleWidgetRole = Qt.UserRole + 1
projectsaved = pyqtSignal()
projectupdated = pyqtSignal()
projectloaded = pyqtSignal(object)
selectlayersupdated = pyqtSignal(list)
def __init__(self, parent=None):
super(ProjectWidget, self).__init__(parent)
self.setupUi(self)
self.project = None
self.mapisloaded = False
self.bar = None
self.roamapp = None
menu = QMenu()
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.canvas.mapRenderer().setLabelingEngine(QgsPalLabeling())
# self.roamVersionLabel.setText("You are running IntraMaps Roam version {}".format(roam.__version__))
self.openProjectFolderButton.pressed.connect(self.openprojectfolder)
self.openinQGISButton.pressed.connect(self.openinqgis)
self.depolyProjectButton.pressed.connect(self.deploy_project)
self.depolyInstallProjectButton.pressed.connect(
functools.partial(self.deploy_project, True))
self.filewatcher = QFileSystemWatcher()
self.filewatcher.fileChanged.connect(self.qgisprojectupdated)
self.projectupdatedlabel.linkActivated.connect(self.reloadproject)
self.projectupdatedlabel.hide()
# self.setpage(4)
self.currentnode = None
self.form = None
qgislocation = r'C:\OSGeo4W\bin\qgis.bat'
qgislocation = roam.config.settings.setdefault('configmanager', {}) \
.setdefault('qgislocation', qgislocation)
self.qgispathEdit.setText(qgislocation)
self.qgispathEdit.textChanged.connect(self.save_qgis_path)
self.filePickerButton.pressed.connect(self.set_qgis_path)
def set_qgis_path(self):
path = QFileDialog.getOpenFileName(self,
"Select QGIS install file",
filter="(*.bat)")
if not path:
return
self.qgispathEdit.setText(path)
self.save_qgis_path(path)
def save_qgis_path(self, path):
roam.config.settings['configmanager'] = {'qgislocation': path}
roam.config.save()
def setpage(self, page, node):
self.currentnode = node
self.write_config_currentwidget()
self.stackedWidget.setCurrentIndex(page)
if self.project:
print self.project.dump_settings()
widget = self.stackedWidget.currentWidget()
if hasattr(widget, "set_project"):
widget.set_project(self.project, self.currentnode)
def write_config_currentwidget(self):
widget = self.stackedWidget.currentWidget()
if hasattr(widget, "write_config"):
widget.write_config()
def deploy_project(self, with_data=False):
if self.roamapp.sourcerun:
base = os.path.join(self.roamapp.apppath, "..")
else:
base = self.roamapp.apppath
default = os.path.join(base, "roam_serv")
path = roam.config.settings.get("publish", {}).get("path", '')
if not path:
path = default
path = os.path.join(path, "projects")
if not os.path.exists(path):
os.makedirs(path)
self._saveproject()
options = {}
bundle.bundle_project(self.project,
path,
options,
as_install=with_data)
def setaboutinfo(self):
self.versionLabel.setText(roam.__version__)
self.qgisapiLabel.setText(str(QGis.QGIS_VERSION))
def checkcapturelayers(self):
haslayers = self.project.hascapturelayers()
self.formslayerlabel.setVisible(not haslayers)
return haslayers
def selectlayerschanged(self, *args):
self.formlayers.setSelectLayers(self.project.selectlayers)
self.checkcapturelayers()
self.selectlayersupdated.emit(self.project.selectlayers)
def reloadproject(self, *args):
self.setproject(self.project)
self.projectupdated.emit()
def qgisprojectupdated(self, path):
self.projectupdatedlabel.show()
self.projectupdatedlabel.setText(
"The QGIS project has been updated. <a href='reload'> "
"Click to reload</a>. <b style=\"color:red\">Unsaved data will be lost</b>"
)
def openinqgis(self):
projectfile = self.project.projectfile
qgislocation = r'C:\OSGeo4W\bin\qgis.bat'
qgislocation = roam.config.settings.setdefault('configmanager', {}) \
.setdefault('qgislocation', qgislocation)
try:
openqgis(projectfile, qgislocation)
except OSError:
self.bar.pushMessage("Looks like I couldn't find QGIS",
"Check qgislocation in roam.config",
QgsMessageBar.WARNING)
def openprojectfolder(self):
folder = self.project.folder
openfolder(folder)
def setproject(self, project, loadqgis=True):
"""
Set the widgets active project.
"""
self.mapisloaded = False
self.filewatcher.removePaths(self.filewatcher.files())
self.projectupdatedlabel.hide()
self._closeqgisproject()
if project.valid:
self.startsettings = copy.deepcopy(project.settings)
self.project = project
self.projectlabel.setText(project.name)
self.loadqgisproject(project, self.project.projectfile)
self.filewatcher.addPath(self.project.projectfile)
self.projectloaded.emit(self.project)
def loadqgisproject(self, project, projectfile):
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
self.projectLocationLabel.setText("Project File: {}".format(
os.path.basename(project.projectfile)))
QgsProject.instance().read(fileinfo)
def _closeqgisproject(self):
if self.canvas.isDrawing():
return
self.canvas.freeze(True)
QgsMapLayerRegistry.instance().removeAllMapLayers()
self.canvas.freeze(False)
def loadmap(self):
if self.mapisloaded:
return
# This is a dirty hack to work around the timer that is in QgsMapCanvas in 2.2.
# Refresh will stop the canvas timer
# Repaint will redraw the widget.
# loadmap is only called once per project load so it's safe to do this here.
self.canvas.refresh()
self.canvas.repaint()
parser = roam.projectparser.ProjectParser.fromFile(
self.project.projectfile)
canvasnode = parser.canvasnode
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.updateScale()
self.canvas.refresh()
self.mapisloaded = True
def _saveproject(self):
"""
Save the project config to disk.
"""
self.write_config_currentwidget()
# self.project.dump_settings()
self.project.save(update_version=True)
self.projectsaved.emit()
class ProjectWidget(Ui_Form, QWidget):
SampleWidgetRole = Qt.UserRole + 1
projectsaved = pyqtSignal()
projectupdated = pyqtSignal()
projectloaded = pyqtSignal(object)
selectlayersupdated = pyqtSignal(list)
projectlocationchanged = pyqtSignal(str)
def __init__(self, parent=None):
super(ProjectWidget, self).__init__(parent)
self.setupUi(self)
self.project = None
self.mapisloaded = False
self.bar = None
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.canvas.mapRenderer().setLabelingEngine(QgsPalLabeling())
self.fieldsmodel = QgsFieldModel()
self.widgetmodel = WidgetsModel()
self.possiblewidgetsmodel = QStandardItemModel()
self.formlayersmodel = QgsLayerModel(watchregistry=False)
self.formlayers = CaptureLayerFilter()
self.formlayers.setSourceModel(self.formlayersmodel)
self.selectlayermodel = CaptureLayersModel(watchregistry=False)
self.selectlayerfilter = LayerTypeFilter()
self.selectlayerfilter.setSourceModel(self.selectlayermodel)
self.selectlayermodel.dataChanged.connect(self.selectlayerschanged)
self.layerCombo.setModel(self.formlayers)
self.widgetCombo.setModel(self.possiblewidgetsmodel)
self.selectLayers.setModel(self.selectlayerfilter)
self.selectLayers_2.setModel(self.selectlayerfilter)
self.fieldList.setModel(self.fieldsmodel)
self.widgetlist.setModel(self.widgetmodel)
self.widgetlist.selectionModel().currentChanged.connect(self.updatecurrentwidget)
self.widgetmodel.rowsRemoved.connect(self.setwidgetconfigvisiable)
self.widgetmodel.rowsInserted.connect(self.setwidgetconfigvisiable)
self.widgetmodel.modelReset.connect(self.setwidgetconfigvisiable)
self.titleText.textChanged.connect(self.updatetitle)
QgsProject.instance().readProject.connect(self._readproject)
self.loadwidgettypes()
self.addWidgetButton.pressed.connect(self.newwidget)
self.removeWidgetButton.pressed.connect(self.removewidget)
self.roamVersionLabel.setText("You are running IntraMaps Roam version {}".format(roam.__version__))
self.openProjectFolderButton.pressed.connect(self.openprojectfolder)
self.openinQGISButton.pressed.connect(self.openinqgis)
self.filewatcher = QFileSystemWatcher()
self.filewatcher.fileChanged.connect(self.qgisprojectupdated)
self.formfolderLabel.linkActivated.connect(self.openformfolder)
self.projectupdatedlabel.linkActivated.connect(self.reloadproject)
self.projectupdatedlabel.hide()
self.formtab.currentChanged.connect(self.formtabchanged)
self.expressionButton.clicked.connect(self.opendefaultexpression)
self.fieldList.currentIndexChanged.connect(self.updatewidgetname)
self.fieldwarninglabel.hide()
for item, data in readonlyvalues:
self.readonlyCombo.addItem(item, data)
self.setpage(4)
self.form = None
self.projectlocations.currentIndexChanged[str].connect(self.projectlocationchanged.emit)
def setaboutinfo(self):
self.versionLabel.setText(roam.__version__)
self.qgisapiLabel.setText(str(QGis.QGIS_VERSION))
def checkcapturelayers(self):
haslayers = self.project.hascapturelayers()
self.formslayerlabel.setVisible(not haslayers)
return haslayers
def opendefaultexpression(self):
layer = self.currentform.QGISLayer
dlg = QgsExpressionBuilderDialog(layer, "Create default value expression", self)
text = self.defaultvalueText.text().strip('[%').strip('%]').strip()
dlg.setExpressionText(text)
if dlg.exec_():
self.defaultvalueText.setText('[% {} %]'.format(dlg.expressionText()))
def openformfolder(self, url):
openfolder(url)
def selectlayerschanged(self, *args):
self.formlayers.setSelectLayers(self.project.selectlayers)
self.checkcapturelayers()
self.selectlayersupdated.emit(self.project.selectlayers)
def formtabchanged(self, index):
# preview
if index == 1:
self.form.settings['widgets'] = list(self.widgetmodel.widgets())
self.setformpreview(self.form)
def setprojectfolders(self, folders):
for folder in folders:
self.projectlocations.addItem(folder)
def setpage(self, page):
self.stackedWidget.setCurrentIndex(page)
def reloadproject(self, *args):
self.setproject(self.project)
def qgisprojectupdated(self, path):
self.projectupdatedlabel.show()
self.projectupdatedlabel.setText("The QGIS project has been updated. <a href='reload'> "
"Click to reload</a>. <b style=\"color:red\">Unsaved data will be lost</b>")
def openinqgis(self):
projectfile = self.project.projectfile
qgislocation = r'C:\OSGeo4W\bin\qgis.bat'
qgislocation = roam.config.settings.setdefault('configmanager', {}) \
.setdefault('qgislocation', qgislocation)
try:
openqgis(projectfile, qgislocation)
except WindowsError:
self.bar.pushMessage("Looks like I couldn't find QGIS",
"Check qgislocation in settings.config", QgsMessageBar.WARNING)
def openprojectfolder(self):
folder = self.project.folder
openfolder(folder)
def setwidgetconfigvisiable(self, *args):
haswidgets = self.widgetmodel.rowCount() > 0
self.widgetframe.setEnabled(haswidgets)
def removewidget(self):
"""
Remove the selected widget from the widgets list
"""
widget, index = self.currentuserwidget
if index.isValid():
self.widgetmodel.removeRow(index.row(), index.parent())
def newwidget(self):
"""
Create a new widget. The default is a list.
"""
widget = {}
widget['widget'] = 'List'
# Grab the first field.
widget['field'] = self.fieldsmodel.index(0, 0).data(QgsFieldModel.FieldNameRole)
currentindex = self.widgetlist.currentIndex()
currentitem = self.widgetmodel.itemFromIndex(currentindex)
if currentitem and currentitem.iscontainor():
parent = currentindex
else:
parent = currentindex.parent()
index = self.widgetmodel.addwidget(widget, parent)
self.widgetlist.setCurrentIndex(index)
def loadwidgettypes(self):
self.widgetCombo.blockSignals(True)
for widgettype in roam.editorwidgets.core.supportedwidgets():
try:
configclass = configmanager.editorwidgets.widgetconfigs[widgettype]
except KeyError:
continue
configwidget = configclass()
item = QStandardItem(widgettype)
item.setData(configwidget, Qt.UserRole)
item.setData(widgettype, Qt.UserRole + 1)
item.setIcon(QIcon(widgeticon(widgettype)))
self.widgetCombo.model().appendRow(item)
self.widgetstack.addWidget(configwidget)
self.widgetCombo.blockSignals(False)
def usedfields(self):
"""
Return the list of fields that have been used by the the current form's widgets
"""
for widget in self.currentform.widgets:
yield widget['field']
@property
def currentform(self):
"""
Return the current selected form.
"""
return self.form
@property
def currentuserwidget(self):
"""
Return the selected user widget.
"""
index = self.widgetlist.currentIndex()
return index.data(Qt.UserRole), index
@property
def currentwidgetconfig(self):
"""
Return the selected widget in the widget combo.
"""
index = self.widgetCombo.currentIndex()
index = self.possiblewidgetsmodel.index(index, 0)
return index.data(Qt.UserRole), index, index.data(Qt.UserRole + 1)
def updatewidgetname(self, index):
# Only change the edit text on name field if it's not already set to something other then the
# field name.
field = self.fieldsmodel.index(index, 0).data(QgsFieldModel.FieldNameRole)
currenttext = self.nameText.text()
foundfield = self.fieldsmodel.findfield(currenttext)
if foundfield:
self.nameText.setText(field)
def _save_widgetfield(self, index):
"""
Save the selected field for the current widget.
Shows a error if the field is already used but will allow
the user to still set it in the case of extra logic for that field
in the forms Python logic.
"""
widget, index = self.currentuserwidget
row = self.fieldList.currentIndex()
field = self.fieldsmodel.index(row, 0).data(QgsFieldModel.FieldNameRole)
showwarning = field in self.usedfields()
self.fieldwarninglabel.setVisible(showwarning)
widget['field'] = field
self.widgetmodel.setData(index, widget, Qt.UserRole)
def _save_selectedwidget(self, index):
configwidget, index, widgettype = self.currentwidgetconfig
widget, index = self.currentuserwidget
if not widget:
return
widget['widget'] = widgettype
widget['required'] = self.requiredCheck.isChecked()
widget['config'] = configwidget.getconfig()
widget['name'] = self.nameText.text()
widget['read-only-rules'] = [self.readonlyCombo.itemData(self.readonlyCombo.currentIndex())]
widget['hidden'] = self.hiddenCheck.isChecked()
self.widgetmodel.setData(index, widget, Qt.UserRole)
def _save_default(self):
widget, index = self.currentuserwidget
default = self.defaultvalueText.text()
widget['default'] = default
self.widgetmodel.setData(index, widget, Qt.UserRole)
def _save_selectionlayers(self, index, layer, value):
config = self.project.settings
self.selectlayermodel.dataChanged.emit(index, index)
def _save_formtype(self, index):
formtype = self.formtypeCombo.currentText()
form = self.currentform
form.settings['type'] = formtype
def _save_formname(self, text):
"""
Save the form label to the settings file.
"""
try:
form = self.currentform
if form is None:
return
form.settings['label'] = text
self.projectupdated.emit()
except IndexError:
return
def _save_layer(self, index):
"""
Save the selected layer to the settings file.
"""
index = self.formlayers.index(index, 0)
layer = index.data(Qt.UserRole)
if not layer:
return
form = self.currentform
if form is None:
return
form.settings['layer'] = layer.name()
self.updatefields(layer)
def setsplash(self, splash):
pixmap = QPixmap(splash)
w = self.splashlabel.width()
h = self.splashlabel.height()
self.splashlabel.setPixmap(pixmap.scaled(w,h, Qt.KeepAspectRatio))
def setproject(self, project, loadqgis=True):
"""
Set the widgets active project.
"""
self.disconnectsignals()
self.mapisloaded = False
self.filewatcher.removePaths(self.filewatcher.files())
self.projectupdatedlabel.hide()
self._closeqgisproject()
if project.valid:
self.startsettings = copy.deepcopy(project.settings)
self.project = project
self.projectlabel.setText(project.name)
self.versionText.setText(project.version)
self.selectlayermodel.config = project.settings
self.formlayers.setSelectLayers(self.project.selectlayers)
self.setsplash(project.splash)
self.loadqgisproject(project, self.project.projectfile)
self.filewatcher.addPath(self.project.projectfile)
self.projectloaded.emit(self.project)
def loadqgisproject(self, project, projectfile):
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
QgsProject.instance().read(fileinfo)
def _closeqgisproject(self):
if self.canvas.isDrawing():
return
self.canvas.freeze(True)
self.formlayersmodel.removeall()
self.selectlayermodel.removeall()
QgsMapLayerRegistry.instance().removeAllMapLayers()
self.canvas.freeze(False)
def loadmap(self):
if self.mapisloaded:
return
# This is a dirty hack to work around the timer that is in QgsMapCanvas in 2.2.
# Refresh will stop the canvas timer
# Repaint will redraw the widget.
# loadmap is only called once per project load so it's safe to do this here.
self.canvas.refresh()
self.canvas.repaint()
parser = roam.projectparser.ProjectParser.fromFile(self.project.projectfile)
canvasnode = parser.canvasnode
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.updateScale()
self.canvas.refresh()
self.mapisloaded = True
def _readproject(self, doc):
self.formlayersmodel.refresh()
self.selectlayermodel.refresh()
self._updateforproject(self.project)
def _updateforproject(self, project):
self.titleText.setText(project.name)
self.descriptionText.setPlainText(project.description)
def swapwidgetconfig(self, index):
widgetconfig, _, _ = self.currentwidgetconfig
defaultvalue = widgetconfig.defaultvalue
self.defaultvalueText.setText(defaultvalue)
self.updatewidgetconfig({})
def updatetitle(self, text):
self.project.settings['title'] = text
self.projectlabel.setText(text)
self.projectupdated.emit()
def updatewidgetconfig(self, config):
widgetconfig, index, widgettype = self.currentwidgetconfig
self.setconfigwidget(widgetconfig, config)
def setformpreview(self, form):
def removewidget():
item = self.frame_2.layout().itemAt(0)
if item and item.widget():
item.widget().setParent(None)
removewidget()
featureform = FeatureForm.from_form(form, form.settings, None, {})
self.frame_2.layout().addWidget(featureform)
def connectsignals(self):
self.formLabelText.textChanged.connect(self._save_formname)
self.layerCombo.currentIndexChanged.connect(self._save_layer)
self.formtypeCombo.currentIndexChanged.connect(self._save_formtype)
#widget settings
self.fieldList.currentIndexChanged.connect(self._save_widgetfield)
self.requiredCheck.toggled.connect(self._save_selectedwidget)
self.defaultvalueText.textChanged.connect(self._save_default)
self.widgetCombo.currentIndexChanged.connect(self._save_selectedwidget)
self.widgetCombo.currentIndexChanged.connect(self.swapwidgetconfig)
self.nameText.textChanged.connect(self._save_selectedwidget)
self.readonlyCombo.currentIndexChanged.connect(self._save_selectedwidget)
self.hiddenCheck.toggled.connect(self._save_selectedwidget)
def disconnectsignals(self):
try:
self.formLabelText.textChanged.disconnect(self._save_formname)
self.layerCombo.currentIndexChanged.disconnect(self._save_layer)
self.formtypeCombo.currentIndexChanged.disconnect(self._save_formtype)
#widget settings
self.fieldList.currentIndexChanged.disconnect(self._save_widgetfield)
self.requiredCheck.toggled.disconnect(self._save_selectedwidget)
self.defaultvalueText.textChanged.disconnect(self._save_default)
self.widgetCombo.currentIndexChanged.disconnect(self._save_selectedwidget)
self.widgetCombo.currentIndexChanged.disconnect(self.swapwidgetconfig)
self.nameText.textChanged.disconnect(self._save_selectedwidget)
self.readonlyCombo.currentIndexChanged.disconnect(self._save_selectedwidget)
self.hiddenCheck.toggled.disconnect(self._save_selectedwidget)
except TypeError:
pass
def setform(self, form):
"""
Update the UI with the currently selected form.
"""
def getfirstlayer():
index = self.formlayers.index(0,0)
layer = index.data(Qt.UserRole)
layer = layer.name()
return layer
def loadwidgets(widget):
"""
Load the widgets into widgets model
"""
self.widgetmodel.clear()
self.widgetmodel.loadwidgets(form.widgets)
def findlayer(layername):
index = self.formlayersmodel.findlayer(layername)
index = self.formlayers.mapFromSource(index)
layer = index.data(Qt.UserRole)
return index, layer
self.disconnectsignals()
self.form = form
settings = form.settings
label = form.label
layername = settings.setdefault('layer', getfirstlayer())
layerindex, layer = findlayer(layername)
if not layer or not layerindex.isValid():
return
formtype = settings.setdefault('type', 'auto')
widgets = settings.setdefault('widgets', [])
self.formLabelText.setText(label)
folderurl = "<a href='{path}'>{name}</a>".format(path=form.folder, name=os.path.basename(form.folder))
self.formfolderLabel.setText(folderurl)
self.layerCombo.setCurrentIndex(layerindex.row())
self.updatefields(layer)
index = self.formtypeCombo.findText(formtype)
if index == -1:
self.formtypeCombo.insertItem(0, formtype)
self.formtypeCombo.setCurrentIndex(0)
else:
self.formtypeCombo.setCurrentIndex(index)
loadwidgets(widgets)
# Set the first widget
index = self.widgetmodel.index(0, 0)
if index.isValid():
self.widgetlist.setCurrentIndex(index)
self.updatecurrentwidget(index, None)
self.connectsignals()
def updatefields(self, layer):
"""
Update the UI with the fields for the selected layer.
"""
self.fieldsmodel.setLayer(layer)
def setconfigwidget(self, configwidget, config):
"""
Set the active config widget.
"""
try:
configwidget.widgetdirty.disconnect(self._save_selectedwidget)
except TypeError:
pass
#self.descriptionLabel.setText(configwidget.description)
self.widgetstack.setCurrentWidget(configwidget)
configwidget.setconfig(config)
configwidget.widgetdirty.connect(self._save_selectedwidget)
def updatecurrentwidget(self, index, _):
"""
Update the UI with the config for the current selected widget.
"""
if not index.isValid():
return
widget = index.data(Qt.UserRole)
widgettype = widget['widget']
field = widget['field']
required = widget.setdefault('required', False)
name = widget.setdefault('name', field)
default = widget.setdefault('default', '')
readonly = widget.setdefault('read-only-rules', [])
hidden = widget.setdefault('hidden', False)
try:
data = readonly[0]
except:
data = 'never'
self.readonlyCombo.blockSignals(True)
index = self.readonlyCombo.findData(data)
self.readonlyCombo.setCurrentIndex(index)
self.readonlyCombo.blockSignals(False)
self.defaultvalueText.blockSignals(True)
if not isinstance(default, dict):
self.defaultvalueText.setText(default)
else:
# TODO Handle the more advanced default values.
pass
self.defaultvalueText.blockSignals(False)
self.nameText.blockSignals(True)
self.nameText.setText(name)
self.nameText.blockSignals(False)
self.requiredCheck.blockSignals(True)
self.requiredCheck.setChecked(required)
self.requiredCheck.blockSignals(False)
self.hiddenCheck.blockSignals(True)
self.hiddenCheck.setChecked(hidden)
self.hiddenCheck.blockSignals(False)
if not field is None:
self.fieldList.blockSignals(True)
index = self.fieldList.findData(field.lower(), QgsFieldModel.FieldNameRole)
if index > -1:
self.fieldList.setCurrentIndex(index)
else:
self.fieldList.setEditText(field)
self.fieldList.blockSignals(False)
index = self.widgetCombo.findText(widgettype)
self.widgetCombo.blockSignals(True)
if index > -1:
self.widgetCombo.setCurrentIndex(index)
self.widgetCombo.blockSignals(False)
self.updatewidgetconfig(config=widget.setdefault('config', {}))
def _saveproject(self):
"""
Save the project config to disk.
"""
title = self.titleText.text()
description = self.descriptionText.toPlainText()
version = str(self.versionText.text())
settings = self.project.settings
settings['title'] = title
settings['description'] = description
settings['version'] = version
form = self.currentform
if form:
form.settings['widgets'] = list(self.widgetmodel.widgets())
logger.debug(form.settings)
self.project.save()
self.projectsaved.emit()
class Console(QObject):
@property
def _currentCursor(self):
return self.widget.textCursor()
@_currentCursor.setter
def _currentCursor(self, cursor):
self.widget.setTextCursor(cursor)
@property
def _endCursor(self):
return self._lastBlock.endCursor()
@property
def _currentBlock(self):
return TextBlock(self._currentCursor)
@property
def _document(self):
return self.widget.document()
def _canDeletePreviousChar(self):
if self._currentBlock.type in TextBlock.EDITABLE_TYPES and self._cursorInEditableArea():
return self._currentBlock.containsCursor(self._currentCursor, in_active_area='strict')
return False
def _cursorInEditableArea(self, cursor=None):
if cursor is None:
cursor = self._currentCursor
return self._lastBlock.isCursorInRelatedBlock(cursor) and self._currentBlock.containsCursor(cursor)
def _canEditCurrentChar(self):
if not self._currentBlock.type in TextBlock.EDITABLE_TYPES:
return False
if not self._currentBlock.containsCursor(self._currentCursor):
return False
def _gotoBlockStart(self):
self._currentCursor = self._currentBlock.startCursor()
def _gotoBlockEnd(self):
self._currentCursor = self._currentBlock.endCursor()
@property
def _lastBlock(self):
return TextBlock(self._document.lastBlock())
def _gotoEnd(self):
self._currentCursor = self._endCursor
def _insertBlock(self, cursor=None, block_type=TextBlock.TYPE_CODE_CONTINUED, content=""):
if cursor is None:
cursor = self._currentCursor
b = TextBlock(cursor, create_new=True, typ=block_type)
if len(content):
b.appendText(content)
return b
def _appendBlock(self, block_type, content="", html=False):
b = TextBlock(self._endCursor, create_new=True, typ=block_type)
if len(content) > 0:
if html:
b.appendHtml(content)
else:
b.appendText(content)
return b
def _blocks(self):
b = TextBlock(self._document.begin())
ret = []
while not b.isLast():
ret.append(b)
b = b.next()
ret.append(b)
return ret
def _saveBlocksToJSON(self,num_of_blocks=None):
if num_of_blocks is None:
num_of_blocks = 0
ret = []
for b in self._blocks()[-num_of_blocks:]:
ret += [json.dumps({'block_type':b.type,'content':b.content()})]
return '\n'.join(ret)
def save_history(self, fname=None):
if fname is None:
fname = config.history_file
fname = expanduser(fname)
if fname.endswith('.gz'):
f = gzip.open(fname,'wb')
else:
f = open(fname,'wb')
try:
hist_size = config.history_size
except:
hist_size = None
f.write(self._saveBlocksToJSON(num_of_blocks=hist_size))
f.close()
def load_history(self, fname=None):
if fname is None:
fname = config.history_file
fname = expanduser(fname)
if not os.path.exists(fname):
return
if fname.endswith('.gz'):
f = gzip.open(fname,'rb')
else:
f = open(fname,'rb')
blocks = f.readlines()
for b in blocks:
bl = json.loads(b.strip())
self._appendBlock(**bl)
def _joinCurrentToPreviousBlock(self):
logger.debug(msg("Deleting current block"))
cur = self._currentBlock
prev = cur.previous()
prev.appendText(cur.content())
cur.deleteBlock()
def wordUnderCursor(self, cursor=None, delta=0):
""" Returns the word (name) under cursor @cursor (or self._currentCursor)
if @cursor is None. The cursor is shifted by @delta """
if cursor is None:
cursor = self._currentCursor
if delta > 0:
cursor.movePosition(QTextCursor.Right, QTextCursor.MoveAnchor, delta)
elif delta < 0:
cursor.movePosition(QTextCursor.Left, QTextCursor.MoveAnchor, abs(delta))
return self._currentBlock.wordUnderCursor(cursor)
def _containing_function(self):
""" Determines whether the cursor is located in the argument part of a function.
If yes, returns a (@cursor,@func_name) where @cursor points to the opening brace
and @func_name is the function name. """
ct = self.textToCursor()
i=len(ct)-1
brackets = 0
logger.debug("ct == " + ct)
while i >= 0:
if ct[i] == ')':
brackets -=1
if ct[i] == '(':
if brackets < 0:
brackets += 1
elif i > 0 and ct[i-1] not in TextBlock.WORD_STOP_CHARS:
cursor = self._currentBlock.cursorAt(i-1)
func_name = self._currentBlock.wordUnderCursor(cursor)
cursor = self._currentBlock.cursorAt(i+len(func_name))
logger.debug("func_name == "+ func_name)
return (cursor,func_name)
i -= 1
return None
def textToCursor(self):
return self._currentBlock.contentToCursor(self._currentCursor)
def _guessDictPrefix(self, char):
""" Tries to determine whether the user is typing a string-key in a dict. If yes
returns the dict name and the key typed so far. Otherwise returns None. """
c = self._currentCursor
block_content = self._currentBlock.content(include_decoration=True)
pos = min(c.positionInBlock(), len(block_content))
block_content = unicode(block_content[:pos]+char)
double_quotes = block_content.count('"')
single_quotes = block_content.count("'")
if double_quotes % 2 == 0 and single_quotes % 2 == 0:
return None
stop_chars = '"\' '
ret = []
while pos >= 0 and block_content[pos] not in stop_chars:
ret.append(block_content[pos])
pos -= 1
ret.reverse()
if pos > 0 and block_content[pos-1] == '[':
pos -= 1
dct = []
while pos >= 0 and block_content[pos] not in [ ' ', "\n", "\t"]:
dct.append(block_content[pos])
pos -= 1
dct.reverse()
logger.debug(msg('dct:',''.join(dct[:-1]), 'key:',''.join(ret)))
return ''.join(dct[:-1]), ''.join(ret)
else:
return None
def _guessStringPrefix(self, char):
"""Tries to guess whether the user is typing a string (i.e. inside quotes)
and if yes, returns the string typed so far. Otherwise returns None. """
c = self._currentCursor
block_content = self._currentBlock.content(include_decoration=True)
pos = min(c.positionInBlock(), len(block_content))
block_content = unicode(block_content[:pos]+char)
double_quotes = block_content.count('"')
single_quotes = block_content.count("'")
if double_quotes % 2 == 0 and single_quotes % 2 == 0:
return None
stop_chars = '"\' '
ret = []
while pos >= 0 and block_content[pos] not in stop_chars:
ret.append(block_content[pos])
pos -= 1
ret.reverse()
logger.debug(''.join(ret))
return ''.join(ret)
@pyqtSlot(unicode)
def _insertCompletion(self, completion):
insertion = completion[len(self.completer.completionPrefix()):]
if len(insertion) == 0:
self._process_enter()
else:
c = self._currentCursor
c.movePosition(QTextCursor.Left)
c.movePosition(QTextCursor.EndOfWord)
c.insertText(insertion)
self._currentCursor = c
DEFAULT_INDENT = 4
MODE_RUNNING = 0
MODE_CODE_EDITING = 1
MODE_RAW_INPUT = 2
MODE_READ_ONLY = 3
MODE_WAITING_FOR_INTERRUPT = 4
# run_code = pyqtSignal(unicode)
run_code = signal(unicode)
read_line = signal(unicode)
restart_shell = signal()
interrupt_shell = signal()
quit = pyqtSignal()
file_watched = signal(unicode)
def __init__(self, widget):
super(Console, self).__init__()
self.font_size = 10
self.font = QFont("Ubuntu Mono", self.font_size)
self.allow_quit = True
self.indent = self.DEFAULT_INDENT
self.widget = widget
self.hilighter = PythonHighlighter(self.widget.document())
self.parser = PyParser(self.indent, self.indent)
self.widget.setFont(self.font)
# The source file's we are watching
self.watcher = QFileSystemWatcher()
self.watcher.fileChanged.connect(self._sourceChanged)
self._watched_files_menu = QMenu(self.widget.tr("&Watched Files"))
self._watched_files_actions = {}
self._lost_files = []
self._widgetKeyPressEvent = self.widget.keyPressEvent
self.widget.keyPressEvent = self.keyPressEvent
self._widgetFocusInEvent = self.widget.focusInEvent
self.widget.focusInEvent = self.focusInEvent
self.widget.dragEnterEvent = self.dragEnterEvent
self.widget.dragMoveEvent = self.dragMoveEvent
self.widget.dropEvent = self.dropEvent
# Code Completion
self.completer = QCompleter(
[kw for kw in PythonHighlighter.keywords if len(kw) > 3])
self.completer.setCompletionMode(QCompleter.PopupCompletion)
self.completer.setCaseSensitivity(Qt.CaseInsensitive)
self.completer.activated.connect(self._insertCompletion)
self.completer.popup().setStyleSheet(
"QWidget {border-width: 1px; border-color: black;}")
self.completer.popup().setVerticalScrollBarPolicy(
Qt.ScrollBarAlwaysOff)
self.completer.setWidget(self.widget)
self.completion_enabled = True
if config.history:
self.load_history()
self._lastBlock.setType(TextBlock.TYPE_MESSAGE)
self._lastBlock.appendText("PyShell v 0.5: Starting ...")
self._write_message("Python version ", sys.version)
self.start_editing()
# Restart shell timer
self.timer = QTimer(self)
@property
def watched_files_menu(self):
return self._watched_files_menu
@property
def mode(self):
return self._mode
@pyqtSlot()
def increase_font(self):
self.font_size += 1
self.font = QFont("Ubuntu Mono", self.font_size)
self.widget.setFont(self.font)
@pyqtSlot()
def decrease_font(self):
self.font_size -= 1
self.font = QFont("Ubuntu Mono", self.font_size)
self.widget.setFont(self.font)
@pyqtSlot(unicode, unicode)
def write(self, stream, string):
#assert self.mode == Console.MODE_RUNNING or self.mode == Console.MODE_WAITING_FOR_INTERRUPT, "Cannot write " + \
# string + " to console stream "+stream+" in "+str(
# self.mode) + " (need to be RUNNING/INTERRUPT mode) "
if string.startswith('<html_snippet>'):
self._lastBlock.appendHtml(string.replace(
"<html_snippet>", "").replace("</html_snippet>", ""))
else:
lines = string.split('\n')
block_type = block_type_for_stream(stream)
for ln in lines[:-1]:
self._lastBlock.appendText(ln)
self._lastBlock.setType(block_type)
self._appendBlock(block_type)
self._lastBlock.appendText(lines[-1])
self._gotoEnd()
def write_object(self, obj):
logger.debug(msg("Received object", obj, "writing it to stdout"))
self.write('stdout',print_hooks.html_repr(obj, self._document))
@pyqtSlot()
def do_readline(self):
assert self.mode != Console.MODE_RAW_INPUT, "Cannot call readline before previous call finished"
assert self.mode == Console.MODE_RUNNING, "readline may be called only in the RUNNING mode"
self._lastBlock.setType(TextBlock.TYPE_RAW_INPUT)
self._mode = Console.MODE_RAW_INPUT
@pyqtSlot()
def shell_restarted(self):
logger.debug("Shell restarted!")
self._write_message("<span style='color:green'>","="*20,
"</span> SHELL RESTARTED <span style='color:green'>","="*20,"</span>", html=True)
self._write_message('Python version ',sys.version, html=True)
self.start_editing()
@pyqtSlot()
def finished_running(self):
logger.debug("Finished running.")
if len(self._lastBlock.content()) == 0:
self._lastBlock.deleteBlock()
self.start_editing()
@pyqtSlot()
def start_editing(self):
new_code_block = self._appendBlock(TextBlock.TYPE_CODE_START)
self._gotoEnd()
self._mode = Console.MODE_CODE_EDITING
@pyqtSlot()
def exec_command(self,*args, **kwargs):
""" Executes a command in the console context.
The command is given by the cmd keyword argument.
It is either a predefined command or the name of
a method of the console object, in which case this
method is called with *args and **kwargs (where cmd
is first deleted from kwargs) """
if 'cmd' in kwargs:
cmd = kwargs['cmd']
del kwargs['cmd']
if cmd == 'watch.list_files':
self._write_message("Currently watching the following files:")
self._write_message([unicode(x) for x in self.watcher.files()])
self._write_message("Total watched:",len(self.watcher.files()))
logger.debug(msg([x for x in self.watcher.files()]))
elif cmd == 'watch.reload':
self._reload_watch_files()
elif cmd in dir(self):
attr = self.__getattribute__(cmd)
if type(attr) == type(self.exec_command):
attr(*args, **kwargs)
else:
self.write_object(attr)
def _write_message(self, *args, **kwargs):
""" Outputs a "System" message to the console. The message is composed
of string representations of args. If the keyword argument html
is present, the message is assumed to be html. """
if 'html' in kwargs:
html = kwargs['html']
else:
html = True
msg = u''
for a in args:
try:
msg += unicode(a)
except Exception, e:
logger.warn("Exception while writing to console" + str(e))
self._appendBlock(TextBlock.TYPE_MESSAGE, msg, html)
class NFile(QObject):
"""
SIGNALS:
@neverSavedFileClosing(QString)
@fileClosing(QString)
@fileChanged()
@willDelete(PyQt_PyObject, PyQt_PyObject)
@willOverWrite(PyQt_PyObject, QString, QString)
@willMove(Qt_PyQtObject, QString, QString)
@willSave(QString, QString)
@savedAsNewFile(PyQt_PyObject, QString, QString)
@gotAPath(PyQt_PyObject)
@willAttachToExistingFile(PyQt_PyObject, QString)
"""
def __init__(self, path=None):
"""
"""
self._file_path = path
self.__created = False
self.__watcher = None
self.__mtime = None
super(NFile, self).__init__()
if not self._exists():
self.__created = True
@property
def file_name(self):
""""Returns filename of nfile"""
file_name = None
if self._file_path is None:
file_name = translations.TR_NEW_DOCUMENT
else:
file_name = get_basename(self._file_path)
return file_name
@property
def display_name(self):
"""Returns a pretty name to be displayed by tabs"""
display_name = self.file_name
if not self._file_path is None and not self.has_write_permission():
display_name += translations.TR_READ_ONLY
return display_name
@property
def is_new_file(self):
return self.__created
def file_ext(self):
""""Returns extension of nfile"""
if self._file_path is None:
return ''
return get_file_extension(self._file_path)
@property
def file_path(self):
""""Returns file path of nfile"""
return self._file_path
def start_watching(self):
self.__watcher = QFileSystemWatcher(self)
self.connect(self.__watcher, SIGNAL("fileChanged(const QString&)"),
self._file_changed)
if self._file_path is not None:
self.__mtime = os.path.getmtime(self._file_path)
self.__watcher.addPath(self._file_path)
def _file_changed(self, path):
current_mtime = os.path.getmtime(self._file_path)
if current_mtime != self.__mtime:
self.__mtime = current_mtime
self.emit(SIGNAL("fileChanged()"))
def has_write_permission(self):
if not self._exists():
return True
return os.access(self._file_path, os.W_OK)
def _exists(self):
"""
Check if we have been created with a path and if such path exists
In case there is no path, we are most likely a new file.
"""
file_exists = False
if self._file_path and os.path.exists(self._file_path):
file_exists = True
return file_exists
def attach_to_path(self, new_path):
if os.path.exists(new_path):
signal_handler = SignalFlowControl()
self.emit(
SIGNAL("willAttachToExistingFile(PyQt_PyObject, QString)"),
signal_handler, new_path)
if signal_handler.stopped():
return
self._file_path = new_path
self.emit(SIGNAL("gotAPath(PyQt_PyObject)"), self)
return self._file_path
def create(self):
if self.__created:
self.save("")
self.__created = False
def save(self, content, path=None):
"""
Write a temprorary file with .tnj extension and copy it over the
original one.
.nsf = Ninja Swap File
#FIXME: Where to locate addExtension, does not fit here
"""
new_path = False
if path:
self.attach_to_path(path)
new_path = True
save_path = self._file_path
if not save_path:
raise NinjaNoFileNameException("I am asked to write a "
"file but no one told me where")
swap_save_path = u"%s.nsp" % save_path
self.__watcher.removePath(save_path)
flags = QIODevice.WriteOnly | QIODevice.Truncate
f = QFile(swap_save_path)
if settings.use_platform_specific_eol():
flags |= QIODevice.Text
if not f.open(flags):
raise NinjaIOException(f.errorString())
stream = QTextStream(f)
encoding = get_file_encoding(content)
if encoding:
stream.setCodec(encoding)
encoded_stream = stream.codec().fromUnicode(content)
f.write(encoded_stream)
f.flush()
f.close()
#SIGNAL: Will save (temp, definitive) to warn folder to do something
self.emit(SIGNAL("willSave(QString, QString)"), swap_save_path,
save_path)
self.__mtime = os.path.getmtime(swap_save_path)
shutil.move(swap_save_path, save_path)
self.__watcher.addPath(save_path)
self.reset_state()
if self.__watcher and new_path:
self.__watcher.removePath(self.__watcher.files()[0])
self.__watcher.addPath(self._file_path)
return self
def reset_state(self):
"""
#FIXE: to have a ref to changed I need to have the doc here
"""
self.__created = False
def read(self, path=None):
"""
Read the file or fail
"""
open_path = path and path or self._file_path
self._file_path = open_path
if not self._file_path:
raise NinjaNoFileNameException("I am asked to read a "
"file but no one told me from where")
try:
with open(open_path, 'rU') as f:
content = f.read()
except IOError as reason:
raise NinjaIOException(reason)
return content
def move(self, new_path):
"""
Phisically move the file
"""
if self._exists():
signal_handler = SignalFlowControl()
#SIGNALL: WILL MOVE TO, to warn folder to exist
self.emit(SIGNAL("willMove(Qt_PyQtObject, QString, QString)"),
signal_handler,
self._file_path,
new_path)
if signal_handler.stopped():
return
if os.path.exists(new_path):
signal_handler = SignalFlowControl()
self.emit(
SIGNAL("willOverWrite(PyQt_PyObject, QString, QString)"),
signal_handler, self._file_path, new_path)
if signal_handler.stopped():
return
if self.__watcher:
self.__watcher.removePath(self._file_path)
shutil.move(self._file_path, new_path)
if self.__watcher:
self.__watcher.addPath(new_path)
self._file_path = new_path
return
def copy(self, new_path):
"""
Copy the file to a new path
"""
if self._exists():
signal_handler = SignalFlowControl()
#SIGNALL: WILL COPY TO, to warn folder to exist
self.emit(SIGNAL("willCopyTo(Qt_PyQtObject, QString, QString)"),
signal_handler,
self._file_path,
new_path)
if signal_handler.stopped():
return
if os.path.exists(new_path):
signal_handler = SignalFlowControl()
self.emit(
SIGNAL("willOverWrite(PyQt_PyObject, QString, QString)"),
signal_handler, self._file_path, new_path)
if signal_handler.stopped():
return
shutil.copy(self._file_path, new_path)
def delete(self, force=False):
"""
This deletes the object and closes the file.
"""
#if created but exists this file migth to someone else
self.close()
if ((not self.__created) or force) and self._exists():
DEBUG("Deleting our own NFile %s" % self._file_path)
signal_handler = SignalFlowControl()
self.emit(SIGNAL("willDelete(PyQt_PyObject, PyQt_PyObject)"),
signal_handler, self)
if not signal_handler.stopped():
if self.__watcher:
self.__watcher.removePath(self._file_path)
os.remove(self._file_path)
def close(self, force_close=False):
"""
Lets let people know we are going down so they can act upon
As you can see close does nothing but let everyone know that we are
not saved yet
"""
DEBUG("About to close NFile")
if self.__created and not force_close:
self.emit(SIGNAL("neverSavedFileClosing(QString)"),
self._file_path)
else:
self.emit(SIGNAL("fileClosing(QString)"), self._file_path)
if self.__watcher:
self.__watcher.removePath(self._file_path)
class ProjectWidget(Ui_Form, QWidget):
SampleWidgetRole = Qt.UserRole + 1
projectsaved = pyqtSignal()
projectupdated = pyqtSignal()
projectloaded = pyqtSignal(object)
selectlayersupdated = pyqtSignal(list)
def __init__(self, parent=None):
super(ProjectWidget, self).__init__(parent)
self.setupUi(self)
self.project = None
self.mapisloaded = False
self.bar = None
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.canvas.mapRenderer().setLabelingEngine(QgsPalLabeling())
self.fieldsmodel = QgsFieldModel()
self.widgetmodel = WidgetsModel()
self.possiblewidgetsmodel = QStandardItemModel()
self.formlayersmodel = QgsLayerModel(watchregistry=False)
self.formlayers = CaptureLayerFilter()
self.formlayers.setSourceModel(self.formlayersmodel)
self.selectlayermodel = CaptureLayersModel(watchregistry=False)
self.selectlayerfilter = LayerTypeFilter()
self.selectlayerfilter.setSourceModel(self.selectlayermodel)
self.selectlayermodel.dataChanged.connect(self.selectlayerschanged)
self.layerCombo.setModel(self.formlayers)
self.widgetCombo.setModel(self.possiblewidgetsmodel)
self.selectLayers.setModel(self.selectlayerfilter)
self.selectLayers_2.setModel(self.selectlayerfilter)
self.fieldList.setModel(self.fieldsmodel)
self.widgetlist.setModel(self.widgetmodel)
self.widgetlist.selectionModel().currentChanged.connect(self.updatecurrentwidget)
self.widgetmodel.rowsRemoved.connect(self.setwidgetconfigvisiable)
self.widgetmodel.rowsInserted.connect(self.setwidgetconfigvisiable)
self.widgetmodel.modelReset.connect(self.setwidgetconfigvisiable)
self.titleText.textChanged.connect(self.updatetitle)
QgsProject.instance().readProject.connect(self._readproject)
self.loadwidgettypes()
self.addWidgetButton.pressed.connect(self.newwidget)
self.removeWidgetButton.pressed.connect(self.removewidget)
self.roamVersionLabel.setText("You are running IntraMaps Roam version {}".format(roam.__version__))
self.openProjectFolderButton.pressed.connect(self.openprojectfolder)
self.openinQGISButton.pressed.connect(self.openinqgis)
self.filewatcher = QFileSystemWatcher()
self.filewatcher.fileChanged.connect(self.qgisprojectupdated)
self.formfolderLabel.linkActivated.connect(self.openformfolder)
self.projectupdatedlabel.linkActivated.connect(self.reloadproject)
self.projectupdatedlabel.hide()
self.formtab.currentChanged.connect(self.formtabchanged)
self.expressionButton.clicked.connect(self.opendefaultexpression)
self.fieldList.currentIndexChanged.connect(self.updatewidgetname)
self.fieldwarninglabel.hide()
for item, data in readonlyvalues:
self.readonlyCombo.addItem(item, data)
self.setpage(4)
self.form = None
def setaboutinfo(self):
self.versionLabel.setText(roam.__version__)
self.qgisapiLabel.setText(str(QGis.QGIS_VERSION))
def checkcapturelayers(self):
haslayers = self.project.hascapturelayers()
self.formslayerlabel.setVisible(not haslayers)
return haslayers
def opendefaultexpression(self):
layer = self.currentform.QGISLayer
dlg = QgsExpressionBuilderDialog(layer, "Create default value expression", self)
text = self.defaultvalueText.text().strip('[%').strip('%]').strip()
dlg.setExpressionText(text)
if dlg.exec_():
self.defaultvalueText.setText('[% {} %]'.format(dlg.expressionText()))
def openformfolder(self, url):
openfolder(url)
def selectlayerschanged(self, *args):
self.formlayers.setSelectLayers(self.project.selectlayers)
self.checkcapturelayers()
self.selectlayersupdated.emit(self.project.selectlayers)
def formtabchanged(self, index):
# preview
if index == 1:
self.form.settings['widgets'] = list(self.widgetmodel.widgets())
self.setformpreview(self.form)
def setpage(self, page):
self.stackedWidget.setCurrentIndex(page)
def reloadproject(self, *args):
self.setproject(self.project)
def qgisprojectupdated(self, path):
self.projectupdatedlabel.show()
self.projectupdatedlabel.setText("The QGIS project has been updated. <a href='reload'> "
"Click to reload</a>. <b style=\"color:red\">Unsaved data will be lost</b>")
def openinqgis(self):
projectfile = self.project.projectfile
qgislocation = r'C:\OSGeo4W\bin\qgis.bat'
qgislocation = roam.config.settings.setdefault('configmanager', {}) \
.setdefault('qgislocation', qgislocation)
try:
openqgis(projectfile, qgislocation)
except WindowsError:
self.bar.pushMessage("Looks like I couldn't find QGIS",
"Check qgislocation in roam.config", QgsMessageBar.WARNING)
def openprojectfolder(self):
folder = self.project.folder
openfolder(folder)
def setwidgetconfigvisiable(self, *args):
haswidgets = self.widgetmodel.rowCount() > 0
self.widgetframe.setEnabled(haswidgets)
def removewidget(self):
"""
Remove the selected widget from the widgets list
"""
widget, index = self.currentuserwidget
if index.isValid():
self.widgetmodel.removeRow(index.row(), index.parent())
def newwidget(self):
"""
Create a new widget. The default is a list.
"""
widget = {}
widget['widget'] = 'Text'
# Grab the first field.
widget['field'] = self.fieldsmodel.index(0, 0).data(QgsFieldModel.FieldNameRole)
currentindex = self.widgetlist.currentIndex()
currentitem = self.widgetmodel.itemFromIndex(currentindex)
if currentitem and currentitem.iscontainor():
parent = currentindex
else:
parent = currentindex.parent()
index = self.widgetmodel.addwidget(widget, parent)
self.widgetlist.setCurrentIndex(index)
def loadwidgettypes(self):
self.widgetCombo.blockSignals(True)
for widgettype in roam.editorwidgets.core.supportedwidgets():
try:
configclass = configmanager.editorwidgets.widgetconfigs[widgettype]
except KeyError:
continue
configwidget = configclass()
item = QStandardItem(widgettype)
item.setData(configwidget, Qt.UserRole)
item.setData(widgettype, Qt.UserRole + 1)
item.setIcon(QIcon(widgeticon(widgettype)))
self.widgetCombo.model().appendRow(item)
self.widgetstack.addWidget(configwidget)
self.widgetCombo.blockSignals(False)
def usedfields(self):
"""
Return the list of fields that have been used by the the current form's widgets
"""
for widget in self.currentform.widgets:
yield widget['field']
@property
def currentform(self):
"""
Return the current selected form.
"""
return self.form
@property
def currentuserwidget(self):
"""
Return the selected user widget.
"""
index = self.widgetlist.currentIndex()
return index.data(Qt.UserRole), index
@property
def currentwidgetconfig(self):
"""
Return the selected widget in the widget combo.
"""
index = self.widgetCombo.currentIndex()
index = self.possiblewidgetsmodel.index(index, 0)
return index.data(Qt.UserRole), index, index.data(Qt.UserRole + 1)
def updatewidgetname(self, index):
# Only change the edit text on name field if it's not already set to something other then the
# field name.
field = self.fieldsmodel.index(index, 0).data(QgsFieldModel.FieldNameRole)
currenttext = self.nameText.text()
foundfield = self.fieldsmodel.findfield(currenttext)
if foundfield:
self.nameText.setText(field)
def _save_widgetfield(self, index):
"""
Save the selected field for the current widget.
Shows a error if the field is already used but will allow
the user to still set it in the case of extra logic for that field
in the forms Python logic.
"""
widget, index = self.currentuserwidget
row = self.fieldList.currentIndex()
field = self.fieldsmodel.index(row, 0).data(QgsFieldModel.FieldNameRole)
showwarning = field in self.usedfields()
self.fieldwarninglabel.setVisible(showwarning)
widget['field'] = field
self.widgetmodel.setData(index, widget, Qt.UserRole)
def _save_selectedwidget(self, index):
configwidget, index, widgettype = self.currentwidgetconfig
widget, index = self.currentuserwidget
if not widget:
return
widget['widget'] = widgettype
widget['required'] = self.requiredCheck.isChecked()
widget['config'] = configwidget.getconfig()
widget['name'] = self.nameText.text()
widget['read-only-rules'] = [self.readonlyCombo.itemData(self.readonlyCombo.currentIndex())]
widget['hidden'] = self.hiddenCheck.isChecked()
self.widgetmodel.setData(index, widget, Qt.UserRole)
def _save_default(self):
widget, index = self.currentuserwidget
default = self.defaultvalueText.text()
widget['default'] = default
self.widgetmodel.setData(index, widget, Qt.UserRole)
def _save_selectionlayers(self, index, layer, value):
config = self.project.settings
self.selectlayermodel.dataChanged.emit(index, index)
def _save_formtype(self, index):
formtype = self.formtypeCombo.currentText()
form = self.currentform
form.settings['type'] = formtype
def _save_formname(self, text):
"""
Save the form label to the settings file.
"""
try:
form = self.currentform
if form is None:
return
form.settings['label'] = text
self.projectupdated.emit()
except IndexError:
return
def _save_layer(self, index):
"""
Save the selected layer to the settings file.
"""
index = self.formlayers.index(index, 0)
layer = index.data(Qt.UserRole)
if not layer:
return
form = self.currentform
if form is None:
return
form.settings['layer'] = layer.name()
self.updatefields(layer)
def setsplash(self, splash):
pixmap = QPixmap(splash)
w = self.splashlabel.width()
h = self.splashlabel.height()
self.splashlabel.setPixmap(pixmap.scaled(w,h, Qt.KeepAspectRatio))
def setproject(self, project, loadqgis=True):
"""
Set the widgets active project.
"""
self.disconnectsignals()
self.mapisloaded = False
self.filewatcher.removePaths(self.filewatcher.files())
self.projectupdatedlabel.hide()
self._closeqgisproject()
if project.valid:
self.startsettings = copy.deepcopy(project.settings)
self.project = project
self.projectlabel.setText(project.name)
self.versionText.setText(project.version)
self.selectlayermodel.config = project.settings
self.formlayers.setSelectLayers(self.project.selectlayers)
self.setsplash(project.splash)
self.loadqgisproject(project, self.project.projectfile)
self.filewatcher.addPath(self.project.projectfile)
self.projectloaded.emit(self.project)
def loadqgisproject(self, project, projectfile):
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
QgsProject.instance().read(fileinfo)
def _closeqgisproject(self):
if self.canvas.isDrawing():
return
self.canvas.freeze(True)
self.formlayersmodel.removeall()
self.selectlayermodel.removeall()
QgsMapLayerRegistry.instance().removeAllMapLayers()
self.canvas.freeze(False)
def loadmap(self):
if self.mapisloaded:
return
# This is a dirty hack to work around the timer that is in QgsMapCanvas in 2.2.
# Refresh will stop the canvas timer
# Repaint will redraw the widget.
# loadmap is only called once per project load so it's safe to do this here.
self.canvas.refresh()
self.canvas.repaint()
parser = roam.projectparser.ProjectParser.fromFile(self.project.projectfile)
canvasnode = parser.canvasnode
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.updateScale()
self.canvas.refresh()
self.mapisloaded = True
def _readproject(self, doc):
self.formlayersmodel.refresh()
self.selectlayermodel.refresh()
self._updateforproject(self.project)
def _updateforproject(self, project):
self.titleText.setText(project.name)
self.descriptionText.setPlainText(project.description)
def swapwidgetconfig(self, index):
widgetconfig, _, _ = self.currentwidgetconfig
defaultvalue = widgetconfig.defaultvalue
self.defaultvalueText.setText(defaultvalue)
self.updatewidgetconfig({})
def updatetitle(self, text):
self.project.settings['title'] = text
self.projectlabel.setText(text)
self.projectupdated.emit()
def updatewidgetconfig(self, config):
widgetconfig, index, widgettype = self.currentwidgetconfig
self.setconfigwidget(widgetconfig, config)
def setformpreview(self, form):
def removewidget():
item = self.frame_2.layout().itemAt(0)
if item and item.widget():
item.widget().setParent(None)
removewidget()
featureform = FeatureForm.from_form(form, form.settings, None, {})
self.frame_2.layout().addWidget(featureform)
def connectsignals(self):
self.formLabelText.textChanged.connect(self._save_formname)
self.layerCombo.currentIndexChanged.connect(self._save_layer)
self.formtypeCombo.currentIndexChanged.connect(self._save_formtype)
#widget settings
self.fieldList.currentIndexChanged.connect(self._save_widgetfield)
self.requiredCheck.toggled.connect(self._save_selectedwidget)
self.defaultvalueText.textChanged.connect(self._save_default)
self.widgetCombo.currentIndexChanged.connect(self._save_selectedwidget)
self.widgetCombo.currentIndexChanged.connect(self.swapwidgetconfig)
self.nameText.textChanged.connect(self._save_selectedwidget)
self.readonlyCombo.currentIndexChanged.connect(self._save_selectedwidget)
self.hiddenCheck.toggled.connect(self._save_selectedwidget)
def disconnectsignals(self):
try:
self.formLabelText.textChanged.disconnect(self._save_formname)
self.layerCombo.currentIndexChanged.disconnect(self._save_layer)
self.formtypeCombo.currentIndexChanged.disconnect(self._save_formtype)
#widget settings
self.fieldList.currentIndexChanged.disconnect(self._save_widgetfield)
self.requiredCheck.toggled.disconnect(self._save_selectedwidget)
self.defaultvalueText.textChanged.disconnect(self._save_default)
self.widgetCombo.currentIndexChanged.disconnect(self._save_selectedwidget)
self.widgetCombo.currentIndexChanged.disconnect(self.swapwidgetconfig)
self.nameText.textChanged.disconnect(self._save_selectedwidget)
self.readonlyCombo.currentIndexChanged.disconnect(self._save_selectedwidget)
self.hiddenCheck.toggled.disconnect(self._save_selectedwidget)
except TypeError:
pass
def setform(self, form):
"""
Update the UI with the currently selected form.
"""
def getfirstlayer():
index = self.formlayers.index(0,0)
layer = index.data(Qt.UserRole)
layer = layer.name()
return layer
def loadwidgets(widget):
"""
Load the widgets into widgets model
"""
self.widgetmodel.clear()
self.widgetmodel.loadwidgets(form.widgets)
def findlayer(layername):
index = self.formlayersmodel.findlayer(layername)
index = self.formlayers.mapFromSource(index)
layer = index.data(Qt.UserRole)
return index, layer
self.disconnectsignals()
self.form = form
settings = form.settings
label = form.label
layername = settings.setdefault('layer', getfirstlayer())
layerindex, layer = findlayer(layername)
if not layer or not layerindex.isValid():
return
formtype = settings.setdefault('type', 'auto')
widgets = settings.setdefault('widgets', [])
self.formLabelText.setText(label)
folderurl = "<a href='{path}'>{name}</a>".format(path=form.folder, name=os.path.basename(form.folder))
self.formfolderLabel.setText(folderurl)
self.layerCombo.setCurrentIndex(layerindex.row())
self.updatefields(layer)
index = self.formtypeCombo.findText(formtype)
if index == -1:
self.formtypeCombo.insertItem(0, formtype)
self.formtypeCombo.setCurrentIndex(0)
else:
self.formtypeCombo.setCurrentIndex(index)
loadwidgets(widgets)
# Set the first widget
index = self.widgetmodel.index(0, 0)
if index.isValid():
self.widgetlist.setCurrentIndex(index)
self.updatecurrentwidget(index, None)
self.connectsignals()
def updatefields(self, layer):
"""
Update the UI with the fields for the selected layer.
"""
self.fieldsmodel.setLayer(layer)
def setconfigwidget(self, configwidget, config):
"""
Set the active config widget.
"""
try:
configwidget.widgetdirty.disconnect(self._save_selectedwidget)
except TypeError:
pass
#self.descriptionLabel.setText(configwidget.description)
self.widgetstack.setCurrentWidget(configwidget)
configwidget.setconfig(config)
configwidget.widgetdirty.connect(self._save_selectedwidget)
def updatecurrentwidget(self, index, _):
"""
Update the UI with the config for the current selected widget.
"""
if not index.isValid():
return
widget = index.data(Qt.UserRole)
widgettype = widget['widget']
field = widget['field']
required = widget.setdefault('required', False)
name = widget.setdefault('name', field)
default = widget.setdefault('default', '')
readonly = widget.setdefault('read-only-rules', [])
hidden = widget.setdefault('hidden', False)
try:
data = readonly[0]
except:
data = 'never'
self.readonlyCombo.blockSignals(True)
index = self.readonlyCombo.findData(data)
self.readonlyCombo.setCurrentIndex(index)
self.readonlyCombo.blockSignals(False)
self.defaultvalueText.blockSignals(True)
if not isinstance(default, dict):
self.defaultvalueText.setText(default)
self.defaultvalueText.setEnabled(True)
self.expressionButton.setEnabled(True)
else:
# TODO Handle the more advanced default values.
self.defaultvalueText.setText("Advanced default set in config")
self.defaultvalueText.setEnabled(False)
self.expressionButton.setEnabled(False)
self.defaultvalueText.blockSignals(False)
self.nameText.blockSignals(True)
self.nameText.setText(name)
self.nameText.blockSignals(False)
self.requiredCheck.blockSignals(True)
self.requiredCheck.setChecked(required)
self.requiredCheck.blockSignals(False)
self.hiddenCheck.blockSignals(True)
self.hiddenCheck.setChecked(hidden)
self.hiddenCheck.blockSignals(False)
if not field is None:
self.fieldList.blockSignals(True)
index = self.fieldList.findData(field.lower(), QgsFieldModel.FieldNameRole)
if index > -1:
self.fieldList.setCurrentIndex(index)
else:
self.fieldList.setEditText(field)
self.fieldList.blockSignals(False)
index = self.widgetCombo.findText(widgettype)
self.widgetCombo.blockSignals(True)
if index > -1:
self.widgetCombo.setCurrentIndex(index)
self.widgetCombo.blockSignals(False)
self.updatewidgetconfig(config=widget.setdefault('config', {}))
def _saveproject(self):
"""
Save the project config to disk.
"""
title = self.titleText.text()
description = self.descriptionText.toPlainText()
version = str(self.versionText.text())
settings = self.project.settings
settings['title'] = title
settings['description'] = description
settings['version'] = version
form = self.currentform
if form:
form.settings['widgets'] = list(self.widgetmodel.widgets())
logger.debug(form.settings)
self.project.save()
self.projectsaved.emit()
class NFile(QObject):
"""
SIGNALS:
@askForSaveFileClosing(QString)
@fileClosing(QString)
@fileChanged()
@willDelete(PyQt_PyObject, PyQt_PyObject)
@willOverWrite(PyQt_PyObject, QString, QString)
@willMove(Qt_PyQtObject, QString, QString)
@willSave(QString, QString)
@savedAsNewFile(PyQt_PyObject, QString, QString)
@gotAPath(PyQt_PyObject)
@willAttachToExistingFile(PyQt_PyObject, QString)
"""
def __init__(self, path=None):
"""
"""
self._file_path = path
self.__created = False
self.__watcher = None
self.__mtime = None
super(NFile, self).__init__()
if not self._exists():
self.__created = True
@property
def file_name(self):
""""Returns filename of nfile"""
file_name = None
if self._file_path is None:
file_name = translations.TR_NEW_DOCUMENT
else:
file_name = get_basename(self._file_path)
return file_name
@property
def display_name(self):
"""Returns a pretty name to be displayed by tabs"""
display_name = self.file_name
if not self._file_path is None and not self.has_write_permission():
display_name += translations.TR_READ_ONLY
return display_name
@property
def is_new_file(self):
return self.__created
def file_ext(self):
""""Returns extension of nfile"""
if self._file_path is None:
return ''
return get_file_extension(self._file_path)
@property
def file_path(self):
""""Returns file path of nfile"""
return self._file_path
def start_watching(self):
"""Create a file system watcher and connect its fileChanged
SIGNAL to our _file_changed SLOT"""
if not self.__watcher:
self.__watcher = QFileSystemWatcher(self)
self.connect(self.__watcher,
SIGNAL("fileChanged(const QString&)"),
self._file_changed)
if self._file_path is not None:
self.__mtime = os.path.getmtime(self._file_path)
self.__watcher.addPath(self._file_path)
def _file_changed(self, path):
current_mtime = os.path.getmtime(self._file_path)
if current_mtime != self.__mtime:
self.__mtime = current_mtime
self.emit(SIGNAL("fileChanged()"))
def has_write_permission(self):
if not self._exists():
return True
return os.access(self._file_path, os.W_OK)
def _exists(self):
"""
Check if we have been created with a path and if such path exists
In case there is no path, we are most likely a new file.
"""
file_exists = False
if self._file_path and os.path.exists(self._file_path):
file_exists = True
return file_exists
def attach_to_path(self, new_path):
if os.path.exists(new_path):
signal_handler = SignalFlowControl()
self.emit(
SIGNAL("willAttachToExistingFile(PyQt_PyObject, QString)"),
signal_handler,
new_path)
if signal_handler.stopped():
return
self._file_path = new_path
self.emit(SIGNAL("gotAPath(PyQt_PyObject)"), self)
return self._file_path
def create(self):
if self.__created:
self.save("")
self.__created = False
def save(self, content, path=None):
"""
Write a temprorary file with .tnj extension and copy it over the
original one.
.nsf = Ninja Swap File
#FIXME: Where to locate addExtension, does not fit here
"""
new_path = False
if path:
self.attach_to_path(path)
new_path = True
save_path = self._file_path
if not save_path:
raise NinjaNoFileNameException("I am asked to write a "
"file but no one told me where")
swap_save_path = "%s.nsp" % save_path
# If we have a file system watcher, remove the file path
# from its watch list until we are done making changes.
if self.__watcher:
self.__watcher.removePath(save_path)
flags = QIODevice.WriteOnly | QIODevice.Truncate
f = QFile(swap_save_path)
if settings.use_platform_specific_eol():
flags |= QIODevice.Text
if not f.open(flags):
raise NinjaIOException(f.errorString())
stream = QTextStream(f)
encoding = get_file_encoding(content)
if encoding:
stream.setCodec(encoding)
encoded_stream = stream.codec().fromUnicode(content)
f.write(encoded_stream)
f.flush()
f.close()
#SIGNAL: Will save (temp, definitive) to warn folder to do something
self.emit(SIGNAL("willSave(QString, QString)"),
swap_save_path, save_path)
self.__mtime = os.path.getmtime(swap_save_path)
shutil.move(swap_save_path, save_path)
self.reset_state()
# If we have a file system watcher, add the saved path back
# to its watch list, otherwise create a watcher and start
# watching
if self.__watcher:
if new_path:
self.__watcher.removePath(self.__watcher.files()[0])
self.__watcher.addPath(self._file_path)
else:
self.__watcher.addPath(save_path)
else:
self.start_watching()
return self
def reset_state(self):
"""
#FIXE: to have a ref to changed I need to have the doc here
"""
self.__created = False
def read(self, path=None):
"""
Read the file or fail
"""
open_path = path and path or self._file_path
self._file_path = open_path
if not self._file_path:
raise NinjaNoFileNameException("I am asked to read a "
"file but no one told me from where")
try:
with open(open_path, 'rU') as f:
content = f.read()
except IOError as reason:
raise NinjaIOException(reason)
return content
def move(self, new_path):
"""
Phisically move the file
"""
if self._exists():
signal_handler = SignalFlowControl()
#SIGNALL: WILL MOVE TO, to warn folder to exist
self.emit(SIGNAL("willMove(Qt_PyQtObject, QString, QString)"),
signal_handler,
self._file_path,
new_path)
if signal_handler.stopped():
return
if os.path.exists(new_path):
signal_handler = SignalFlowControl()
self.emit(
SIGNAL("willOverWrite(PyQt_PyObject, QString, QString)"),
signal_handler, self._file_path, new_path)
if signal_handler.stopped():
return
if self.__watcher:
self.__watcher.removePath(self._file_path)
shutil.move(self._file_path, new_path)
if self.__watcher:
self.__watcher.addPath(new_path)
self._file_path = new_path
return
def copy(self, new_path):
"""
Copy the file to a new path
"""
if self._exists():
signal_handler = SignalFlowControl()
#SIGNALL: WILL COPY TO, to warn folder to exist
self.emit(SIGNAL("willCopyTo(Qt_PyQtObject, QString, QString)"),
signal_handler, self._file_path, new_path)
if signal_handler.stopped():
return
if os.path.exists(new_path):
signal_handler = SignalFlowControl()
self.emit(
SIGNAL("willOverWrite(PyQt_PyObject, QString, QString)"),
signal_handler, self._file_path, new_path)
if signal_handler.stopped():
return
shutil.copy(self._file_path, new_path)
def delete(self, force=False):
"""
This deletes the object and closes the file.
"""
#if created but exists this file migth to someone else
self.close()
if ((not self.__created) or force) and self._exists():
DEBUG("Deleting our own NFile %s" % self._file_path)
signal_handler = SignalFlowControl()
self.emit(SIGNAL("willDelete(PyQt_PyObject, PyQt_PyObject)"),
signal_handler, self)
if not signal_handler.stopped():
if self.__watcher:
self.__watcher.removePath(self._file_path)
os.remove(self._file_path)
def close(self, force_close=False):
"""
Lets let people know we are going down so they can act upon
As you can see close does nothing but let everyone know that we are
not saved yet
"""
DEBUG("About to close NFile")
self.emit(SIGNAL("fileClosing(QString, bool)"),
self._file_path, force_close)
def remove_watcher(self):
if self.__watcher:
self.__watcher.removePath(self._file_path)
class _FileWatcher(QObject):
"""File watcher.
QFileSystemWatcher notifies client about any change (file access mode, modification date, etc.)
But, we need signal, only after file contents had been changed
"""
modified = pyqtSignal(bool)
removed = pyqtSignal(bool)
def __init__(self, path):
QObject.__init__(self)
self._contents = None
self._watcher = QFileSystemWatcher()
self._timer = None
self._path = path
self.setPath(path)
self.enable()
def __del__(self):
self._stopTimer()
def enable(self):
"""Enable signals from the watcher
"""
self._watcher.fileChanged.connect(self._onFileChanged)
def disable(self):
"""Disable signals from the watcher
"""
self._watcher.fileChanged.disconnect(self._onFileChanged)
self._stopTimer()
def setContents(self, contents):
"""Set file contents. Watcher uses it to compare old and new contents of the file.
"""
self._contents = contents
# Qt File watcher may work incorrectly, if file was not existing, when it started
self.setPath(self._path)
def setPath(self, path):
"""Path had been changed or file had been created. Set new path
"""
if self._watcher.files():
self._watcher.removePaths(self._watcher.files())
if path is not None and os.path.isfile(path):
self._watcher.addPath(path)
self._path = path
def _emitModifiedStatus(self):
"""Emit self.modified signal with right status
"""
isModified = self._contents != self._safeRead(self._path)
self.modified.emit(isModified)
def _onFileChanged(self):
"""File changed. Emit own signal, if contents changed
"""
if os.path.exists(self._path):
self._emitModifiedStatus()
else:
self.removed.emit(True)
self._startTimer()
def _startTimer(self):
"""Init a timer.
It is used for monitoring file after deletion.
Git removes file, than restores it.
"""
if self._timer is None:
self._timer = QTimer()
self._timer.setInterval(500)
self._timer.timeout.connect(self._onCheckIfDeletedTimer)
self._timer.start()
def _stopTimer(self):
"""Stop timer, if exists
"""
if self._timer is not None:
self._timer.stop()
def _onCheckIfDeletedTimer(self):
"""Check, if file has been restored
"""
if os.path.exists(self._path):
self.removed.emit(False)
self._emitModifiedStatus()
self.setPath(
self._path
) # restart Qt file watcher after file has been restored
self._stopTimer()
def _safeRead(self, path):
"""Read file. Ignore exceptions
"""
try:
with open(path, 'rb') as file:
return file.read()
except (OSError, IOError):
return None
class ProjectWidget(Ui_Form, QWidget):
SampleWidgetRole = Qt.UserRole + 1
projectsaved = pyqtSignal()
projectupdated = pyqtSignal(object)
projectloaded = pyqtSignal(object)
selectlayersupdated = pyqtSignal(list)
def __init__(self, parent=None):
super(ProjectWidget, self).__init__(parent)
self.setupUi(self)
self.project = None
self.bar = None
self.roamapp = None
menu = QMenu()
# self.roamVersionLabel.setText("You are running IntraMaps Roam version {}".format(roam.__version__))
self.openProjectFolderButton.pressed.connect(self.openprojectfolder)
self.openinQGISButton.pressed.connect(self.openinqgis)
self.depolyProjectButton.pressed.connect(self.deploy_project)
self.depolyInstallProjectButton.pressed.connect(functools.partial(self.deploy_project, True))
self.filewatcher = QFileSystemWatcher()
self.filewatcher.fileChanged.connect(self.qgisprojectupdated)
self.projectupdatedlabel.linkActivated.connect(self.reloadproject)
self.projectupdatedlabel.hide()
# self.setpage(4)
self.currentnode = None
self.form = None
qgislocation = r'C:\OSGeo4W\bin\qgis.bat'
qgislocation = roam.config.settings.setdefault('configmanager', {}) \
.get('qgislocation', "")
self.qgispathEdit.setText(qgislocation)
self.qgispathEdit.textChanged.connect(self.save_qgis_path)
self.filePickerButton.pressed.connect(self.set_qgis_path)
self.connect_page_events()
QgsProject.instance().readProject.connect(self.projectLoaded)
def connect_page_events(self):
"""
Connect the events from all the pages back to here
"""
for index in range(self.stackedWidget.count()):
widget = self.stackedWidget.widget(index)
if hasattr(widget, "raiseMessage"):
widget.raiseMessage.connect(self.bar.pushMessage)
def set_qgis_path(self):
"""
Set the location of the QGIS install. We need the path to be able to create Roam
projects
"""
path = QFileDialog.getOpenFileName(self, "Select QGIS install file", filter="(*.bat)")
if not path:
return
self.qgispathEdit.setText(path)
self.save_qgis_path(path)
def save_qgis_path(self, path):
"""
Save the QGIS path back to the Roam config.
"""
roam.config.settings['configmanager'] = {'qgislocation': path}
roam.config.save()
def setpage(self, page, node, refreshingProject=False):
"""
Set the current page in the config manager. We pass the project into the current
page so that it knows what the project is.
"""
self.currentnode = node
if not refreshingProject and self.project:
self.write_config_currentwidget()
else:
roam.utils.info("Reloading project. Not saving current config values")
self.unload_current_widget()
# Set the new widget for the selected page
self.stackedWidget.setCurrentIndex(page)
widget = self.stackedWidget.currentWidget()
print "New widget {}".format(widget.objectName())
if hasattr(widget, "set_project"):
widget.set_project(self.project, self.currentnode)
def unload_current_widget(self):
print "NOTIFY!!"
widget = self.stackedWidget.currentWidget()
print widget
if hasattr(widget, "unload_project"):
widget.unload_project()
def write_config_currentwidget(self):
"""
Call the write config command on the current widget.
"""
widget = self.stackedWidget.currentWidget()
if hasattr(widget, "write_config"):
roam.utils.debug("Write config for {} in project {}".format(widget.objectName(), self.project.name))
widget.write_config()
def deploy_project(self, with_data=False):
"""
Run the step to deploy a project. Projects are deplyed as a bundled zip of the project folder.
"""
if self.roamapp.sourcerun:
base = os.path.join(self.roamapp.apppath, "..")
else:
base = self.roamapp.apppath
default = os.path.join(base, "roam_serv")
path = roam.config.settings.get("publish", {}).get("path", '')
if not path:
path = default
path = os.path.join(path, "projects")
if not os.path.exists(path):
os.makedirs(path)
self._saveproject(update_version=True, reset_save_point=True)
options = {}
bundle.bundle_project(self.project, path, options, as_install=with_data)
def setaboutinfo(self):
"""
Set the current about info on the widget
"""
self.versionLabel.setText(roam.__version__)
self.qgisapiLabel.setText(unicode(QGis.QGIS_VERSION))
def selectlayerschanged(self, *args):
"""
Run the updates when the selection layers have changed
"""
self.formlayers.setSelectLayers(self.project.selectlayers)
self.selectlayersupdated.emit(self.project.selectlayers)
def reloadproject(self, *args):
"""
Reload the project. At the moment this will drop any unsaved changes to the config.
Note: Should look at making sure it doesn't do that because it's not really needed.
"""
self.projectupdated.emit(self.project)
# self.setproject(self.project)
def qgisprojectupdated(self, path):
"""
Show a message when the QGIS project file has been updated.
"""
self.projectupdatedlabel.show()
self.projectupdatedlabel.setText("The QGIS project has been updated. <a href='reload'> "
"Click to reload</a>. <b style=\"color:red\">Unsaved data will be lost</b>")
def openinqgis(self):
"""
Open a QGIS session for the user to config the project layers.
"""
try:
openqgis(self.project.projectfile)
except OSError:
self.bar.pushMessage("Looks like I couldn't find QGIS",
"Check qgislocation in roam.config", QgsMessageBar.WARNING)
def openprojectfolder(self):
"""
Open the project folder in the file manager for the OS.
"""
folder = self.project.folder
openfolder(folder)
def setproject(self, project):
"""
Set the widgets active project.
"""
self.unload_current_widget()
if self.project:
savelast = QMessageBox.question(self,
"Save Current Project",
"Save {}?".format(self.project.name),
QMessageBox.Save | QMessageBox.No)
if savelast == QMessageBox.Accepted:
self._saveproject()
self.filewatcher.removePaths(self.filewatcher.files())
self.projectupdatedlabel.hide()
self._closeqgisproject()
if project.valid:
self.startsettings = copy.deepcopy(project.settings)
self.project = project
self.projectlabel.setText(project.name)
self.loadqgisproject(project, self.project.projectfile)
def projectLoaded(self):
self.filewatcher.addPath(self.project.projectfile)
self.projectloaded.emit(self.project)
def loadqgisproject(self, project, projectfile):
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
# No idea why we have to set this each time. Maybe QGIS deletes it for
# some reason.
self.badLayerHandler = BadLayerHandler(callback=self.missing_layers)
QgsProject.instance().setBadLayerHandler(self.badLayerHandler)
QgsProject.instance().read(fileinfo)
def missing_layers(self, missinglayers):
"""
Handle any and show any missing layers.
"""
self.project.missing_layers = missinglayers
def _closeqgisproject(self):
"""
Close the current QGIS project and clean up after..
"""
QGIS.close_project()
def _saveproject(self, update_version=False, reset_save_point=False):
"""
Save the project config to disk.
"""
if not self.project:
return
roam.utils.info("Saving project: {}".format(self.project.name))
self.write_config_currentwidget()
# self.project.dump_settings()
self.project.save(update_version=update_version, reset_save_point=reset_save_point)
self.filewatcher.removePaths(self.filewatcher.files())
QgsProject.instance().write()
self.filewatcher.addPath(self.project.projectfile)
self.projectsaved.emit()
class ProjectWidget(Ui_Form, QWidget):
SampleWidgetRole = Qt.UserRole + 1
projectsaved = pyqtSignal()
projectupdated = pyqtSignal()
projectloaded = pyqtSignal(object)
selectlayersupdated = pyqtSignal(list)
def __init__(self, parent=None):
super(ProjectWidget, self).__init__(parent)
self.setupUi(self)
self.project = None
self.mapisloaded = False
self.bar = None
self.roamapp = None
menu = QMenu()
self.canvas.setCanvasColor(Qt.white)
self.canvas.enableAntiAliasing(True)
self.canvas.setWheelAction(QgsMapCanvas.WheelZoomToMouseCursor)
self.canvas.mapRenderer().setLabelingEngine(QgsPalLabeling())
# self.roamVersionLabel.setText("You are running IntraMaps Roam version {}".format(roam.__version__))
self.openProjectFolderButton.pressed.connect(self.openprojectfolder)
self.openinQGISButton.pressed.connect(self.openinqgis)
self.depolyProjectButton.pressed.connect(self.deploy_project)
self.depolyInstallProjectButton.pressed.connect(functools.partial(self.deploy_project, True))
self.filewatcher = QFileSystemWatcher()
self.filewatcher.fileChanged.connect(self.qgisprojectupdated)
self.projectupdatedlabel.linkActivated.connect(self.reloadproject)
self.projectupdatedlabel.hide()
# self.setpage(4)
self.currentnode = None
self.form = None
qgislocation = r'C:\OSGeo4W\bin\qgis.bat'
qgislocation = roam.config.settings.setdefault('configmanager', {}) \
.setdefault('qgislocation', qgislocation)
self.qgispathEdit.setText(qgislocation)
self.qgispathEdit.textChanged.connect(self.save_qgis_path)
self.filePickerButton.pressed.connect(self.set_qgis_path)
def set_qgis_path(self):
path = QFileDialog.getOpenFileName(self, "Select QGIS install file", filter="(*.bat)")
if not path:
return
self.qgispathEdit.setText(path)
self.save_qgis_path(path)
def save_qgis_path(self, path):
roam.config.settings['configmanager'] = {'qgislocation': path}
roam.config.save()
def setpage(self, page, node):
self.currentnode = node
self.write_config_currentwidget()
self.stackedWidget.setCurrentIndex(page)
if self.project:
print self.project.dump_settings()
widget = self.stackedWidget.currentWidget()
if hasattr(widget, "set_project"):
widget.set_project(self.project, self.currentnode)
def write_config_currentwidget(self):
widget = self.stackedWidget.currentWidget()
if hasattr(widget, "write_config"):
widget.write_config()
def deploy_project(self, with_data=False):
if self.roamapp.sourcerun:
base = os.path.join(self.roamapp.apppath, "..")
else:
base = self.roamapp.apppath
default = os.path.join(base, "roam_serv")
path = roam.config.settings.get("publish", {}).get("path", '')
if not path:
path = default
path = os.path.join(path, "projects")
if not os.path.exists(path):
os.makedirs(path)
self._saveproject()
options = {}
bundle.bundle_project(self.project, path, options, as_install=with_data)
def setaboutinfo(self):
self.versionLabel.setText(roam.__version__)
self.qgisapiLabel.setText(str(QGis.QGIS_VERSION))
def checkcapturelayers(self):
haslayers = self.project.hascapturelayers()
self.formslayerlabel.setVisible(not haslayers)
return haslayers
def selectlayerschanged(self, *args):
self.formlayers.setSelectLayers(self.project.selectlayers)
self.checkcapturelayers()
self.selectlayersupdated.emit(self.project.selectlayers)
def reloadproject(self, *args):
self.setproject(self.project)
self.projectupdated.emit()
def qgisprojectupdated(self, path):
self.projectupdatedlabel.show()
self.projectupdatedlabel.setText("The QGIS project has been updated. <a href='reload'> "
"Click to reload</a>. <b style=\"color:red\">Unsaved data will be lost</b>")
def openinqgis(self):
projectfile = self.project.projectfile
qgislocation = r'C:\OSGeo4W\bin\qgis.bat'
qgislocation = roam.config.settings.setdefault('configmanager', {}) \
.setdefault('qgislocation', qgislocation)
try:
openqgis(projectfile, qgislocation)
except OSError:
self.bar.pushMessage("Looks like I couldn't find QGIS",
"Check qgislocation in roam.config", QgsMessageBar.WARNING)
def openprojectfolder(self):
folder = self.project.folder
openfolder(folder)
def setproject(self, project, loadqgis=True):
"""
Set the widgets active project.
"""
self.mapisloaded = False
self.filewatcher.removePaths(self.filewatcher.files())
self.projectupdatedlabel.hide()
self._closeqgisproject()
if project.valid:
self.startsettings = copy.deepcopy(project.settings)
self.project = project
self.projectlabel.setText(project.name)
self.loadqgisproject(project, self.project.projectfile)
self.filewatcher.addPath(self.project.projectfile)
self.projectloaded.emit(self.project)
def loadqgisproject(self, project, projectfile):
QDir.setCurrent(os.path.dirname(project.projectfile))
fileinfo = QFileInfo(project.projectfile)
self.projectLocationLabel.setText("Project File: {}".format(os.path.basename(project.projectfile)))
QgsProject.instance().read(fileinfo)
def _closeqgisproject(self):
if self.canvas.isDrawing():
return
self.canvas.freeze(True)
QgsMapLayerRegistry.instance().removeAllMapLayers()
self.canvas.freeze(False)
def loadmap(self):
if self.mapisloaded:
return
# This is a dirty hack to work around the timer that is in QgsMapCanvas in 2.2.
# Refresh will stop the canvas timer
# Repaint will redraw the widget.
# loadmap is only called once per project load so it's safe to do this here.
self.canvas.refresh()
self.canvas.repaint()
parser = roam.projectparser.ProjectParser.fromFile(self.project.projectfile)
canvasnode = parser.canvasnode
self.canvas.mapRenderer().readXML(canvasnode)
self.canvaslayers = parser.canvaslayers()
self.canvas.setLayerSet(self.canvaslayers)
self.canvas.updateScale()
self.canvas.refresh()
self.mapisloaded = True
def _saveproject(self):
"""
Save the project config to disk.
"""
self.write_config_currentwidget()
# self.project.dump_settings()
self.project.save(update_version=True)
self.projectsaved.emit()
