def evaluate_flags(self):
"""
"""
# Detect modifications
file_url_changed = (self.config_file_url_edit.text() !=
PluginGlobals.instance().CONFIG_FILE_URLS[0])
download_at_startup_changed = \
(self.download_cb.isChecked() != PluginGlobals.instance().CONFIG_FILES_DOWNLOAD_AT_STARTUP)
hide_resources_with_warn_status_changed = \
(self.hide_resources_with_warn_status_cb.isChecked() !=
PluginGlobals.instance().HIDE_RESOURCES_WITH_WARN_STATUS)
hide_empty_groups_changed = \
(self.hide_empty_groups_cb.isChecked() != PluginGlobals.instance().HIDE_EMPTY_GROUPS)
# Init flags
self.need_update_visibility_of_tree_items = hide_empty_groups_changed or hide_resources_with_warn_status_changed
self.need_update_of_tree_content = file_url_changed
self.need_save = file_url_changed or download_at_startup_changed or \
hide_resources_with_warn_status_changed or \
hide_empty_groups_changed
# Update state of the Apply Button
self.button_box.button(QDialogButtonBox.Apply).setEnabled(
self.need_save)
def __init__(self):
"""
"""
# Folder icon
QgsApplication.initQgis()
style = QgsApplication.style()
self.folder_icon = style.standardIcon(QStyle.SP_DirClosedIcon)
warn_icon_path = os.path.join(
PluginGlobals.instance().images_dir_path,
PluginGlobals.instance().ICON_WARN_FILE_NAME)
self.warn_icon = QIcon(warn_icon_path)
wms_layer_icon_path = os.path.join(
PluginGlobals.instance().images_dir_path,
PluginGlobals.instance().ICON_WMS_LAYER_FILE_NAME)
self.wms_layer_icon = QIcon(wms_layer_icon_path)
wms_style_icon_path = os.path.join(
PluginGlobals.instance().images_dir_path,
PluginGlobals.instance().ICON_WMS_STYLE_FILE_NAME)
self.wms_style_icon = QIcon(wms_style_icon_path)
wfs_layer_icon_path = os.path.join(
PluginGlobals.instance().images_dir_path,
PluginGlobals.instance().ICON_WFS_LAYER_FILE_NAME)
self.wfs_layer_icon = QIcon(wfs_layer_icon_path)
raster_layer_icon_path = os.path.join(
PluginGlobals.instance().images_dir_path,
PluginGlobals.instance().ICON_RASTER_LAYER_FILE_NAME)
self.raster_layer_icon = QIcon(raster_layer_icon_path)
def update_visibility_of_tree_items(self):
"""
Update the visibility of tree items:
- visibility of empty groups
- visibility of items with status = warn
"""
hide_items_with_warn_status = PluginGlobals.instance(
).HIDE_RESOURCES_WITH_WARN_STATUS
hide_empty_groups = PluginGlobals.instance().HIDE_EMPTY_GROUPS
def update_visibility_of_subitems(item, hide_empty_groups,
hide_items_with_warn_status):
if hasattr(item, "item_data"
) and item.item_data.status == PluginGlobals.instance(
).NODE_STATUS_WARN:
item.setHidden(hide_items_with_warn_status)
child_count = item.childCount()
if child_count > 0:
for i in range(child_count):
sub_item = item.child(i)
if sub_item.is_an_empty_group():
sub_item.setHidden(hide_empty_groups)
update_visibility_of_subitems(sub_item, hide_empty_groups,
hide_items_with_warn_status)
update_visibility_of_subitems(self.invisibleRootItem(),
hide_empty_groups,
hide_items_with_warn_status)
def restore_defaults_button_clicked(self):
"""
"""
# URL of the file
self.config_file_url_edit.blockSignals(True)
self.config_file_url_edit.setText(
PluginGlobals.instance().get_qgis_setting_default_value(
"CONFIG_FILE_URLS")[0])
self.config_file_url_edit.setCursorPosition(0)
self.config_file_url_edit.blockSignals(False)
# Download the file at startup
self.download_cb.blockSignals(True)
self.download_cb.setChecked(
PluginGlobals.instance().get_qgis_setting_default_value(
"CONFIG_FILES_DOWNLOAD_AT_STARTUP"))
self.download_cb.blockSignals(False)
# Hide resources with a warn flag
self.hide_resources_with_warn_status_cb.blockSignals(True)
self.hide_resources_with_warn_status_cb.setChecked(
PluginGlobals.instance().get_qgis_setting_default_value(
"HIDE_RESOURCES_WITH_WARN_STATUS"))
self.hide_resources_with_warn_status_cb.blockSignals(False)
# Hide empty groups in the resources tree
self.hide_empty_groups_cb.blockSignals(True)
self.hide_empty_groups_cb.setChecked(
PluginGlobals.instance().get_qgis_setting_default_value(
"HIDE_EMPTY_GROUPS"))
self.hide_empty_groups_cb.blockSignals(False)
self.evaluate_flags()
def save_settings(self):
"""
"""
# URL of the file
new_value = [self.config_file_url_edit.text()]
PluginGlobals.instance().set_qgis_settings_value(
"config_file_urls", new_value)
# Download the file at startup
new_value = self.download_cb.isChecked()
PluginGlobals.instance().set_qgis_settings_value(
"config_files_download_at_startup", new_value)
# Hide resources with a warn flag
new_value = self.hide_resources_with_warn_status_cb.isChecked()
PluginGlobals.instance().set_qgis_settings_value(
"hide_resources_with_warn_status", new_value)
# Hide empty groups in the resources tree
new_value = self.hide_empty_groups_cb.isChecked()
PluginGlobals.instance().set_qgis_settings_value(
"hide_empty_groups", new_value)
# Download, read the resources tree file and update the GUI
if self.need_update_of_tree_content:
download_tree_config_file(
PluginGlobals.instance().CONFIG_FILE_URLS[0])
self.ressources_tree = TreeNodeFactory(
PluginGlobals.instance().config_file_path).root_node
self.tree_dock.set_tree_content(self.ressources_tree)
# Update the visibility of tree items
elif self.need_update_visibility_of_tree_items and self.tree_dock is not None:
self.tree_dock.update_visibility_of_tree_items()
def download_tree_config_file(file_url):
"""
Download the resources tree file
"""
try:
# QgsMessageLog.logMessage("Config file URL: {}".format(file_url,
# tag=PluginGlobals.instance().PLUGIN_TAG,
# level=Qgis.Info))
# Download the config file
http_req = Request(file_url)
http_req.add_header("Cache-Control", "no-cache")
with urlopen(http_req) as response, open(
PluginGlobals.instance().config_file_path,
'wb') as local_config_file:
data = response.read()
local_config_file.write(data)
except Exception as e:
short_message = u"Le téléchargement du fichier de configuration du plugin {0} a échoué.".format(
PluginGlobals.instance().PLUGIN_TAG)
PluginGlobals.instance().iface.messageBar().pushMessage(
"Erreur", short_message, level=Qgis.Critical)
long_message = u"{0}\nUrl du fichier : {1}\n{2}\n{3}".format(
short_message, file_url, e.__doc__, e)
QgsMessageLog.logMessage(long_message,
tag=PluginGlobals.instance().PLUGIN_TAG,
level=Qgis.Critical)
def __init__(self, parent=None):
QWidget.__init__(self, parent)
mainLayout = QVBoxLayout()
logo_file_path = PluginGlobals.instance().logo_file_path
self.logo = QLabel()
self.logo.setPixmap(QPixmap(logo_file_path))
mainLayout.addWidget(self.logo)
title = u"À propos de l'extension Géo2France…"
description = u"""Extension pour QGIS donnant un accès simplifié aux ressources géographiques utiles aux
partenaires de Géo2France
Version {0}
Plus d'informations à l'adresse suivante :
{1}
""".format(PluginGlobals.instance().PLUGIN_VERSION,
PluginGlobals.instance().PLUGIN_SOURCE_REPOSITORY)
self.textArea = QTextEdit()
self.textArea.setReadOnly(True)
self.textArea.setText(description)
self.textArea.setFrameShape(QFrame.NoFrame)
mainLayout.addWidget(self.textArea)
self.setModal(True)
self.setSizeGripEnabled(False)
self.setLayout(mainLayout)
self.setFixedSize(400, 250)
self.setWindowTitle(title)
def set_values_from_qsettings(self):
"""
"""
# URL of the file
self.config_file_url_edit.blockSignals(True)
self.config_file_url_edit.setText(
PluginGlobals.instance().CONFIG_FILE_URLS[0])
self.config_file_url_edit.setCursorPosition(0)
self.config_file_url_edit.blockSignals(False)
# Download the file at startup
self.download_cb.blockSignals(True)
self.download_cb.setChecked(
PluginGlobals.instance().CONFIG_FILES_DOWNLOAD_AT_STARTUP)
self.download_cb.blockSignals(False)
# Hide resources with a warn flag
self.hide_resources_with_warn_status_cb.blockSignals(True)
self.hide_resources_with_warn_status_cb.setChecked(
PluginGlobals.instance().HIDE_RESOURCES_WITH_WARN_STATUS)
self.hide_resources_with_warn_status_cb.blockSignals(False)
# Hide empty groups in the resources tree
self.hide_empty_groups_cb.blockSignals(True)
self.hide_empty_groups_cb.setChecked(
PluginGlobals.instance().HIDE_EMPTY_GROUPS)
self.hide_empty_groups_cb.blockSignals(False)
def run_add_to_map_action(self):
"""
Add the WMS layer with the specified style to the map
"""
qgis_layer_details = self.get_qgis_layer_details()
PluginGlobals.instance().iface.addRasterLayer(
qgis_layer_details["uri"],
qgis_layer_details["title"],
qgis_layer_details["provider"])
def run_add_to_map_action(self):
"""
Add the WFS feature type to the map
"""
qgis_layer_details = self.get_qgis_layer_details()
if qgis_layer_details is not None:
PluginGlobals.instance().iface.addVectorLayer(
qgis_layer_details["uri"],
qgis_layer_details["title"],
qgis_layer_details["provider"])
def run_add_to_map_action(self):
"""
Add the preconfigured TMS layer to the map
"""
# PluginGlobals.instance().iface.addRasterLayer(self.gdal_config_file_path, self.title)
qgis_layer_details = self.get_qgis_layer_details()
if qgis_layer_details is not None:
PluginGlobals.instance().iface.addRasterLayer(
qgis_layer_details["uri"],
qgis_layer_details["title"])
def need_download_tree_config_file(self):
"""
Do we need to download a new version of the resources tree file?
2 possible reasons:
- the user wants it to be downloading at plugin start up
- the file is currently missing
"""
return (PluginGlobals.instance().CONFIG_FILES_DOWNLOAD_AT_STARTUP > 0 or
not os.path.isfile(PluginGlobals.instance().config_file_path))
def __init__(self, title, node_type=PluginGlobals.instance().NODE_TYPE_FOLDER,
description=None, status=None, metadata_url=None, params=None, parent_node=None):
"""
"""
FavoritesTreeNode.__init__(self, title, node_type, description, status, metadata_url, params, parent_node)
# Icon
plugin_icons = PluginIcons.instance()
self.icon = plugin_icons.folder_icon
if self.status == PluginGlobals.instance().NODE_STATUS_WARN:
self.icon = plugin_icons.warn_icon
def __init__(self, file_path):
self.file_path = file_path
self.root_node = None
if not os.path.isfile(self.file_path):
message = u"Le fichier de configuration du plugin {0} n'a pas pu être trouvé.".format(
PluginGlobals.instance().PLUGIN_TAG)
PluginGlobals.instance().iface.messageBar().pushMessage(
"Erreur", message, level=Qgis.Critical)
QgsMessageLog.logMessage(message,
tag=PluginGlobals.instance().PLUGIN_TAG,
level=Qgis.Critical)
return
try:
# Read the config file
# QgsMessageLog.logMessage("Config file path: {}".format(self.file_path,
# tag=PluginGlobals.instance().PLUGIN_TAG,
# level=Qgis.Info))
with open(self.file_path) as f:
config_string = "".join(f.readlines())
config_struct = json.loads(config_string)
self.root_node = self.build_tree(config_struct)
except Exception as e:
short_message = u"La lecture du fichier de configuration du plugin {0} a produit des erreurs.".format(
PluginGlobals.instance().PLUGIN_TAG)
PluginGlobals.instance().iface.messageBar().pushMessage(
"Erreur", short_message, level=Qgis.Critical)
long_message = u"{0}\n{1}\n{2}".format(short_message, e.__doc__, e)
QgsMessageLog.logMessage(long_message,
tag=PluginGlobals.instance().PLUGIN_TAG,
level=Qgis.Critical)
def __init__(self, title, node_type=PluginGlobals.instance().NODE_TYPE_WFS_FEATURE_TYPE_FILTER,
description=None, status=None, metadata_url=None, params=None, parent_node=None):
"""
"""
FavoritesTreeNode.__init__(self, title, node_type, description, status, metadata_url, params, parent_node)
self.filter = params.get("filter")
self.can_be_added_to_map = True
# Icon
plugin_icons = PluginIcons.instance()
self.icon = plugin_icons.wfs_layer_icon
if self.status == PluginGlobals.instance().NODE_STATUS_WARN:
self.icon = plugin_icons.warn_icon
def __init__(self, title, node_type=PluginGlobals.instance().NODE_TYPE_WMS_LAYER_STYLE,
description=None, status=None, metadata_url=None, params=None, parent_node=None):
"""
"""
FavoritesTreeNode.__init__(self, title, node_type, description, status, metadata_url, params, parent_node)
self.layer_style_name = params.get("name")
self.can_be_added_to_map = True
# Icon
plugin_icons = PluginIcons.instance()
self.icon = plugin_icons.wms_style_icon
if self.status == PluginGlobals.instance().NODE_STATUS_WARN:
self.icon = plugin_icons.warn_icon
def __init__(self, title, node_type=PluginGlobals.instance().NODE_TYPE_GDAL_WMS_CONFIG_FILE,
description=None, status=None, metadata_url=None, params=None, parent_node=None):
"""
"""
FavoritesTreeNode.__init__(self, title, node_type, description, status, metadata_url, params, parent_node)
self.gdal_config_file_path = os.path.join(
PluginGlobals.instance().config_dir_path,
params.get("file_path"))
self.can_be_added_to_map = True
# Icon
plugin_icons = PluginIcons.instance()
self.icon = plugin_icons.raster_layer_icon
if self.status == PluginGlobals.instance().NODE_STATUS_WARN:
self.icon = plugin_icons.warn_icon
def download_file_now(self):
"""
"""
# Download, read the resources tree file and update the GUI
download_tree_config_file(self.config_file_url_edit.text())
self.ressources_tree = TreeNodeFactory(
PluginGlobals.instance().config_file_path).root_node
if self.tree_dock is not None:
self.tree_dock.set_tree_content(self.ressources_tree)
def __init__(self, title, node_type=PluginGlobals.instance().NODE_TYPE_WFS_FEATURE_TYPE,
description=None, status=None, metadata_url=None, params=None, parent_node=None):
"""
"""
FavoritesTreeNode.__init__(self, title, node_type, description, status, metadata_url, params, parent_node)
self.service_url = params.get("url")
self.feature_type_name = params.get("name")
self.filter = params.get("filter")
self.wfs_version = params.get("version", "1.0.0")
self.layer_srs = params.get("srs")
self.can_be_added_to_map = True
# Icon
plugin_icons = PluginIcons.instance()
self.icon = plugin_icons.wfs_layer_icon
if self.status == PluginGlobals.instance().NODE_STATUS_WARN:
self.icon = plugin_icons.warn_icon
def __init__(self, title, node_type=PluginGlobals.instance().NODE_TYPE_WMTS_LAYER,
description=None, status=None, metadata_url=None, params=None, parent_node=None):
"""
"""
FavoritesTreeNode.__init__(self, title, node_type, description, status, metadata_url, params, parent_node)
self.service_url = params.get("url")
self.layer_tilematrixset_name = params.get("tilematrixset_name")
self.layer_name = params.get("name")
self.layer_format = params.get("format")
self.layer_srs = params.get("srs")
self.layer_style_name = params.get("style", "")
self.can_be_added_to_map = True
# Icon
plugin_icons = PluginIcons.instance()
self.icon = plugin_icons.wms_style_icon
if self.status == PluginGlobals.instance().NODE_STATUS_WARN:
self.icon = plugin_icons.warn_icon
def is_an_empty_group(self):
"""
Indicates if this tem is an empty group
"""
child_count = self.childCount()
if child_count == 0:
return self.item_data.node_type == PluginGlobals.instance(
).NODE_TYPE_FOLDER
else:
for i in range(child_count):
if not self.child(i).is_an_empty_group():
return False
return True
def __init__(self, title, node_type=PluginGlobals.instance().NODE_TYPE_FOLDER,
description=None, status=None, metadata_url=None, params=None, parent_node=None):
"""
"""
self.parent_node = parent_node
self.node_type = node_type
self.title = title
self.description = description
self.status = status
self.metadata_url = metadata_url
self.children = []
self.can_be_added_to_map = False
self.icon = None
def __init__(self, iface):
self.iface = iface
self.dock = None
PluginGlobals.instance().set_plugin_path(os.path.dirname(os.path.abspath(__file__)))
PluginGlobals.instance().set_plugin_iface(self.iface)
PluginGlobals.instance().reload_globals_from_qgis_settings()
config_struct = None
config_string = ""
# Download the config if needed
if self.need_download_tree_config_file():
download_tree_config_file(PluginGlobals.instance().CONFIG_FILE_URLS[0])
# Read the resources tree file and update the GUI
self.ressources_tree = TreeNodeFactory(PluginGlobals.instance().config_file_path).root_node
def update_visibility_of_subitems(item, hide_empty_groups,
hide_items_with_warn_status):
if hasattr(item, "item_data"
) and item.item_data.status == PluginGlobals.instance(
).NODE_STATUS_WARN:
item.setHidden(hide_items_with_warn_status)
child_count = item.childCount()
if child_count > 0:
for i in range(child_count):
sub_item = item.child(i)
if sub_item.is_an_empty_group():
sub_item.setHidden(hide_empty_groups)
update_visibility_of_subitems(sub_item, hide_empty_groups,
hide_items_with_warn_status)
def build_tree(self, tree_config, parent_node=None):
"""
Function that do the job
"""
# Read the node attributes
node_title = tree_config.get('title', None)
node_description = tree_config.get('description', None)
node_type = tree_config.get('type', None)
node_status = tree_config.get('status', None)
node_metadata_url = tree_config.get('metadata_url', None)
node_params = tree_config.get('params', None)
if node_title:
# Creation of the node
if node_type == PluginGlobals.instance().NODE_TYPE_WMS_LAYER:
node = WmsLayerTreeNode(node_title, node_type,
node_description, node_status,
node_metadata_url, node_params,
parent_node)
elif node_type == PluginGlobals.instance(
).NODE_TYPE_WMS_LAYER_STYLE:
node = WmsStyleLayerTreeNode(node_title, node_type,
node_description, node_status,
node_metadata_url, node_params,
parent_node)
elif node_type == PluginGlobals.instance().NODE_TYPE_WMTS_LAYER:
node = WmtsLayerTreeNode(node_title, node_type,
node_description, node_status,
node_metadata_url, node_params,
parent_node)
elif node_type == PluginGlobals.instance(
).NODE_TYPE_WFS_FEATURE_TYPE:
node = WfsFeatureTypeTreeNode(node_title, node_type,
node_description, node_status,
node_metadata_url, node_params,
parent_node)
elif node_type == PluginGlobals.instance(
).NODE_TYPE_WFS_FEATURE_TYPE_FILTER:
node = WfsFeatureTypeFilterTreeNode(node_title, node_type,
node_description,
node_status,
node_metadata_url,
node_params, parent_node)
elif node_type == PluginGlobals.instance(
).NODE_TYPE_GDAL_WMS_CONFIG_FILE:
node = GdalWmsConfigFileTreeNode(node_title, node_type,
node_description, node_status,
node_metadata_url,
node_params, parent_node)
else:
node = FolderTreeNode(node_title, node_type, node_description,
node_status, node_metadata_url,
node_params, parent_node)
# Creation of the node children
node_children = tree_config.get('children', [])
if len(node_children) > 0:
for child_config in node_children:
child_node = self.build_tree(child_config, node)
node.children.append(child_node)
return node
else:
return None