class SQLiteCompleterText(QTextEdit):
def __init__(self, parent=None):
super(SQLiteCompleterText, self).__init__(parent)
self.cp = QCompleter(words)
self.cp.setWrapAround(False)
self.cp.setWidget(self)
self.cp.setCompletionMode(QCompleter.PopupCompletion)
self.cp.activated.connect(self.insertCompletion)
def insertCompletion(self, completion):
tc = self.textCursor()
extra = len(completion) - len(self.cp.completionPrefix())
tc.movePosition(QTextCursor.Left)
tc.movePosition(QTextCursor.EndOfWord)
tc.insertText(completion[-extra:])
self.setTextCursor(tc)
def textUnderCursor(self):
tc = self.textCursor()
tc.select(QTextCursor.WordUnderCursor)
return tc.selectedText()
def focusInEvent(self, e):
self.cp.setWidget(self)
super(SQLiteCompleterText, self).focusInEvent(e)
def keyPressEvent(self, e):
if self.cp.popup().isVisible():
if e.key() in (Qt.Key_Enter, Qt.Key_Return, Qt.Key_Escape, Qt.Key_Tab, Qt.Key_Backtab):
e.ignore()
return
is_shortcut = ((e.modifiers() & Qt.ControlModifier) != 0 and e.key() == Qt.Key_E & Qt.ControlModifier)
if not is_shortcut:
super(SQLiteCompleterText, self).keyPressEvent(e)
ctrl_or_shift = e.modifiers() & (Qt.ControlModifier | Qt.ShiftModifier)
if ctrl_or_shift and len(e.text()) == 0:
return
eo = "~!@#$%^&*()_+{}|:\"<>?,./;'[]\\-="
has_modifier = (e.modifiers() != Qt.NoModifier) and not ctrl_or_shift
cp = self.textUnderCursor()
if not is_shortcut and (cp in words or has_modifier or len(e.text()) == 0 or len(cp) < 1 or e.text()[-1] in eo):
self.cp.popup().hide()
return
if cp != self.cp.completionPrefix():
self.cp.setCompletionPrefix(cp)
self.cp.popup().setCurrentIndex(self.cp.completionModel().index(0, 0))
cr = self.cursorRect()
cr.setWidth(self.cp.popup().sizeHintForColumn(0) + self.cp.popup().verticalScrollBar().sizeHint().width())
self.cp.complete(cr)
def complete(self, cr, results):
proposals = []
proposals += results.get('modules', [])
proposals += results.get('classes', [])
proposals += results.get('attributes', [])
proposals += results.get('functions', [])
self.model().setStringList(proposals)
self.popup().setCurrentIndex(self.model().index(0, 0))
cr.setWidth(self.popup().sizeHintForColumn(0)
+ self.popup().verticalScrollBar().sizeHint().width() + 10)
QCompleter.complete(self, cr)
class LineEditWithComplete(QLineEdit):
def __init__(self,
parent,
inputList,
configPath='./config/LineEditWithHistory.ini',
qssFilePath="./Resources/stylesheet/style.qss"):
super(LineEditWithComplete, self).__init__(parent)
self.qssFilePath = qssFilePath
self.configPath = configPath
# 用于存放历史记录的List
self.inputList = inputList
self.__widgetInit()
def Exit(self):
pass
def __widgetInit(self):
# LineEdit设置QCompleter，用于显示历史记录
self.completer = QCompleter(self)
self.listModel = QStringListModel(self.inputList, self)
self.completer.setCaseSensitivity(Qt.CaseInsensitive)
self.completer.setModel(self.listModel)
self.completer.activated.connect(self.Slot_completer_activated,
type=Qt.QueuedConnection)
# try:
# with open(self.qssFilePath, "r") as fh:
# self.completer.popup().setStyleSheet(fh.read())
# except Exception as e:
# logger.info('读取QSS文件失败' + str(e))
self.setCompleter(self.completer)
# 按下回车或单击后恢复显示模式 https://doc.qt.io/qt-5/qcompleter.html#activated
def Slot_completer_activated(self, text):
self.completer.setCompletionMode(QCompleter.PopupCompletion)
def event(self, event):
# 按下Tab键时弹出所有记录
if event.type() == QEvent.KeyPress:
if event.key() == Qt.Key_Tab:
# 设置不过滤显示 https://doc.qt.io/qt-5/qcompleter.html#completionMode-prop
if self.completer.completionCount() > 0:
self.completer.setCompletionMode(
QCompleter.UnfilteredPopupCompletion)
self.listModel.setStringList(self.inputList)
self.completer.complete()
self.completer.popup().show()
return True
elif event.key() == Qt.Key_Delete:
self.deleteEle(self.text())
return super().event(event)
def complete(self, cr, results):
proposals = []
proposals += results.get('modules', [])
proposals += results.get('classes', [])
proposals += results.get('attributes', [])
proposals += results.get('functions', [])
self.model().setStringList(proposals)
self.popup().setCurrentIndex(self.model().index(0, 0))
cr.setWidth(self.popup().sizeHintForColumn(0) +
self.popup().verticalScrollBar().sizeHint().width() + 10)
QCompleter.complete(self, cr)
class HelpWebSearchWidget(E5ClearableLineEdit):
"""
Class implementing a web search widget for the web browser.
@signal search(QUrl) emitted when the search should be done
"""
search = pyqtSignal(QUrl)
def __init__(self, parent=None):
"""
Constructor
@param parent reference to the parent widget (QWidget)
"""
super(HelpWebSearchWidget, self).__init__(parent)
from E5Gui.E5LineEdit import E5LineEdit
from E5Gui.E5LineEditButton import E5LineEditButton
from .OpenSearch.OpenSearchManager import OpenSearchManager
self.__mw = parent
self.__openSearchManager = OpenSearchManager(self)
self.__openSearchManager.currentEngineChanged.connect(
self.__currentEngineChanged)
self.__currentEngine = ""
self.__enginesMenu = QMenu(self)
self.__engineButton = E5LineEditButton(self)
self.__engineButton.setMenu(self.__enginesMenu)
self.addWidget(self.__engineButton, E5LineEdit.LeftSide)
self.__searchButton = E5LineEditButton(self)
self.__searchButton.setIcon(UI.PixmapCache.getIcon("webSearch.png"))
self.addWidget(self.__searchButton, E5LineEdit.LeftSide)
self.__model = QStandardItemModel(self)
self.__completer = QCompleter()
self.__completer.setModel(self.__model)
self.__completer.setCompletionMode(
QCompleter.UnfilteredPopupCompletion)
self.__completer.setWidget(self)
self.__searchButton.clicked.connect(self.__searchButtonClicked)
self.textEdited.connect(self.__textEdited)
self.returnPressed.connect(self.__searchNow)
self.__completer.activated[QModelIndex].connect(
self.__completerActivated)
self.__completer.highlighted[QModelIndex].connect(
self.__completerHighlighted)
self.__enginesMenu.aboutToShow.connect(self.__showEnginesMenu)
self.__suggestionsItem = None
self.__suggestions = []
self.__suggestTimer = None
self.__suggestionsEnabled = Preferences.getHelp("WebSearchSuggestions")
self.__recentSearchesItem = None
self.__recentSearches = []
self.__maxSavedSearches = 10
self.__engine = None
self.__loadSearches()
self.__setupCompleterMenu()
self.__currentEngineChanged()
def __searchNow(self):
"""
Private slot to perform the web search.
"""
searchText = self.text()
if not searchText:
return
globalSettings = QWebSettings.globalSettings()
if not globalSettings.testAttribute(
QWebSettings.PrivateBrowsingEnabled):
if searchText in self.__recentSearches:
self.__recentSearches.remove(searchText)
self.__recentSearches.insert(0, searchText)
if len(self.__recentSearches) > self.__maxSavedSearches:
self.__recentSearches = \
self.__recentSearches[:self.__maxSavedSearches]
self.__setupCompleterMenu()
url = self.__openSearchManager.currentEngine().searchUrl(searchText)
self.search.emit(url)
def __setupCompleterMenu(self):
"""
Private method to create the completer menu.
"""
if not self.__suggestions or \
(self.__model.rowCount() > 0 and
self.__model.item(0) != self.__suggestionsItem):
self.__model.clear()
self.__suggestionsItem = None
else:
self.__model.removeRows(1, self.__model.rowCount() - 1)
boldFont = QFont()
boldFont.setBold(True)
if self.__suggestions:
if self.__model.rowCount() == 0:
if not self.__suggestionsItem:
self.__suggestionsItem = QStandardItem(
self.tr("Suggestions"))
self.__suggestionsItem.setFont(boldFont)
self.__model.appendRow(self.__suggestionsItem)
for suggestion in self.__suggestions:
self.__model.appendRow(QStandardItem(suggestion))
if not self.__recentSearches:
self.__recentSearchesItem = QStandardItem(
self.tr("No Recent Searches"))
self.__recentSearchesItem.setFont(boldFont)
self.__model.appendRow(self.__recentSearchesItem)
else:
self.__recentSearchesItem = QStandardItem(
self.tr("Recent Searches"))
self.__recentSearchesItem.setFont(boldFont)
self.__model.appendRow(self.__recentSearchesItem)
for recentSearch in self.__recentSearches:
self.__model.appendRow(QStandardItem(recentSearch))
view = self.__completer.popup()
view.setFixedHeight(
view.sizeHintForRow(0) * self.__model.rowCount() +
view.frameWidth() * 2)
self.__searchButton.setEnabled(
bool(self.__recentSearches or self.__suggestions))
def __completerActivated(self, index):
"""
Private slot handling the selection of an entry from the completer.
@param index index of the item (QModelIndex)
"""
if self.__suggestionsItem and \
self.__suggestionsItem.index().row() == index.row():
return
if self.__recentSearchesItem and \
self.__recentSearchesItem.index().row() == index.row():
return
self.__searchNow()
def __completerHighlighted(self, index):
"""
Private slot handling the highlighting of an entry of the completer.
@param index index of the item (QModelIndex)
@return flah indicating a successful highlighting (boolean)
"""
if self.__suggestionsItem and \
self.__suggestionsItem.index().row() == index.row():
return False
if self.__recentSearchesItem and \
self.__recentSearchesItem.index().row() == index.row():
return False
self.setText(index.data())
return True
def __textEdited(self, txt):
"""
Private slot to handle changes of the search text.
@param txt search text (string)
"""
if self.__suggestionsEnabled:
if self.__suggestTimer is None:
self.__suggestTimer = QTimer(self)
self.__suggestTimer.setSingleShot(True)
self.__suggestTimer.setInterval(200)
self.__suggestTimer.timeout.connect(self.__getSuggestions)
self.__suggestTimer.start()
else:
self.__completer.setCompletionPrefix(txt)
self.__completer.complete()
def __getSuggestions(self):
"""
Private slot to get search suggestions from the configured search
engine.
"""
searchText = self.text()
if searchText:
self.__openSearchManager.currentEngine()\
.requestSuggestions(searchText)
def __newSuggestions(self, suggestions):
"""
Private slot to receive a new list of suggestions.
@param suggestions list of suggestions (list of strings)
"""
self.__suggestions = suggestions
self.__setupCompleterMenu()
self.__completer.complete()
def __showEnginesMenu(self):
"""
Private slot to handle the display of the engines menu.
"""
self.__enginesMenu.clear()
from .OpenSearch.OpenSearchEngineAction import OpenSearchEngineAction
engineNames = self.__openSearchManager.allEnginesNames()
for engineName in engineNames:
engine = self.__openSearchManager.engine(engineName)
action = OpenSearchEngineAction(engine, self.__enginesMenu)
action.setData(engineName)
action.triggered.connect(self.__changeCurrentEngine)
self.__enginesMenu.addAction(action)
if self.__openSearchManager.currentEngineName() == engineName:
action.setCheckable(True)
action.setChecked(True)
ct = self.__mw.currentBrowser()
linkedResources = ct.linkedResources("search")
if len(linkedResources) > 0:
self.__enginesMenu.addSeparator()
for linkedResource in linkedResources:
url = QUrl(linkedResource.href)
title = linkedResource.title
mimetype = linkedResource.type_
if mimetype != "application/opensearchdescription+xml":
continue
if url.isEmpty():
continue
if url.isRelative():
url = ct.url().resolved(url)
if not title:
if not ct.title():
title = url.host()
else:
title = ct.title()
action = self.__enginesMenu.addAction(
self.tr("Add '{0}'").format(title), self.__addEngineFromUrl)
action.setData(url)
action.setIcon(ct.icon())
self.__enginesMenu.addSeparator()
self.__enginesMenu.addAction(self.__mw.searchEnginesAction())
if self.__recentSearches:
self.__enginesMenu.addAction(self.tr("Clear Recent Searches"),
self.clear)
def __changeCurrentEngine(self):
"""
Private slot to handle the selection of a search engine.
"""
action = self.sender()
if action is not None:
name = action.data()
self.__openSearchManager.setCurrentEngineName(name)
def __addEngineFromUrl(self):
"""
Private slot to add a search engine given its URL.
"""
action = self.sender()
if action is not None:
url = action.data()
if not isinstance(url, QUrl):
return
self.__openSearchManager.addEngine(url)
def __searchButtonClicked(self):
"""
Private slot to show the search menu via the search button.
"""
self.__setupCompleterMenu()
self.__completer.complete()
def clear(self):
"""
Public method to clear all private data.
"""
self.__recentSearches = []
self.__setupCompleterMenu()
super(HelpWebSearchWidget, self).clear()
self.clearFocus()
def preferencesChanged(self):
"""
Public method to handle the change of preferences.
"""
self.__suggestionsEnabled = Preferences.getHelp("WebSearchSuggestions")
if not self.__suggestionsEnabled:
self.__suggestions = []
self.__setupCompleterMenu()
def saveSearches(self):
"""
Public method to save the recently performed web searches.
"""
Preferences.Prefs.settings.setValue('Help/WebSearches',
self.__recentSearches)
def __loadSearches(self):
"""
Private method to load the recently performed web searches.
"""
searches = Preferences.Prefs.settings.value('Help/WebSearches')
if searches is not None:
self.__recentSearches = searches
def openSearchManager(self):
"""
Public method to get a reference to the opensearch manager object.
@return reference to the opensearch manager object (OpenSearchManager)
"""
return self.__openSearchManager
def __currentEngineChanged(self):
"""
Private slot to track a change of the current search engine.
"""
if self.__openSearchManager.engineExists(self.__currentEngine):
oldEngine = self.__openSearchManager.engine(self.__currentEngine)
oldEngine.imageChanged.disconnect(self.__engineImageChanged)
if self.__suggestionsEnabled:
oldEngine.suggestions.disconnect(self.__newSuggestions)
newEngine = self.__openSearchManager.currentEngine()
if newEngine.networkAccessManager() is None:
newEngine.setNetworkAccessManager(self.__mw.networkAccessManager())
newEngine.imageChanged.connect(self.__engineImageChanged)
if self.__suggestionsEnabled:
newEngine.suggestions.connect(self.__newSuggestions)
self.setInactiveText(self.__openSearchManager.currentEngineName())
self.__currentEngine = self.__openSearchManager.currentEngineName()
self.__engineButton.setIcon(
QIcon(
QPixmap.fromImage(
self.__openSearchManager.currentEngine().image())))
self.__suggestions = []
self.__setupCompleterMenu()
def __engineImageChanged(self):
"""
Private slot to handle a change of the current search engine icon.
"""
self.__engineButton.setIcon(
QIcon(
QPixmap.fromImage(
self.__openSearchManager.currentEngine().image())))
def mousePressEvent(self, evt):
"""
Protected method called by a mouse press event.
@param evt reference to the mouse event (QMouseEvent)
"""
if evt.button() == Qt.XButton1:
self.__mw.currentBrowser().pageAction(QWebPage.Back).trigger()
elif evt.button() == Qt.XButton2:
self.__mw.currentBrowser().pageAction(QWebPage.Forward).trigger()
else:
super(HelpWebSearchWidget, self).mousePressEvent(evt)
class DiscoveryPlugin:
def __init__(self, _iface):
# Save reference to the QGIS interface
self.iface = _iface
# initialize plugin directory
self.plugin_dir = os.path.dirname(__file__)
# Variables to facilitate delayed queries and database connection management
self.db_timer = QTimer()
self.line_edit_timer = QTimer()
self.line_edit_timer.setSingleShot(True)
self.line_edit_timer.timeout.connect(self.reset_line_edit_after_move)
self.next_query_time = None
self.last_query_time = time.time()
self.db_conn = None
self.search_delay = 0.5 # s
self.query_sql = ''
self.query_text = ''
self.query_dict = {}
self.db_idle_time = 60.0 # s
self.display_time = 5000 # ms
self.bar_info_time = 30 # s
self.search_results = []
self.tool_bar = None
self.search_line_edit = None
self.completer = None
self.conn_info = {}
self.marker = QgsVertexMarker(iface.mapCanvas())
self.marker.setIconSize(15)
self.marker.setPenWidth(2)
self.marker.setColor(QColor(226, 27, 28)) #51,160,44))
self.marker.setZValue(11)
self.marker.setVisible(False)
self.marker2 = QgsVertexMarker(iface.mapCanvas())
self.marker2.setIconSize(16)
self.marker2.setPenWidth(4)
self.marker2.setColor(QColor(255, 255, 255, 200))
self.marker2.setZValue(10)
self.marker2.setVisible(False)
self.is_displayed = False
self.rubber_band = QgsRubberBand(iface.mapCanvas(), False)
self.rubber_band.setVisible(False)
self.rubber_band.setWidth(3)
self.rubber_band.setStrokeColor(QColor(226, 27, 28))
self.rubber_band.setFillColor(QColor(226, 27, 28, 63))
def initGui(self):
# Create a new toolbar
self.tool_bar = self.iface.addToolBar('Discovery')
self.tool_bar.setObjectName('Discovery_Plugin')
# Create action that will start plugin configuration
self.action_config = QAction(
QIcon(os.path.join(self.plugin_dir, "discovery_logo.png")),
u"Configure Discovery", self.tool_bar)
self.action_config.triggered.connect(self.show_config_dialog)
self.tool_bar.addAction(self.action_config)
# Add combobox for configs
self.config_combo = QComboBox()
settings = QgsSettings()
settings.beginGroup("/Discovery")
config_list = settings.value("config_list")
if config_list:
for conf in config_list:
self.config_combo.addItem(conf)
elif settings.childGroups():
# support for prev version
key = "Config1"
config_list = []
config_list.append(key)
settings.setValue("config_list", config_list)
self.config_combo.addItem(key)
settings.setValue(key + "data_type", settings.value("data_type"))
settings.setValue(key + "file", settings.value("file"))
settings.setValue(key + "connection", settings.value("connection"))
settings.setValue(key + "schema", settings.value("schema"))
settings.setValue(key + "table", settings.value("table"))
settings.setValue(key + "search_column",
settings.value("search_column"))
settings.setValue(key + "echo_search_column",
settings.value("echo_search_column"))
settings.setValue(key + "display_columns",
settings.value("display_columns"))
settings.setValue(key + "geom_column",
settings.value("geom_column"))
settings.setValue(key + "scale_expr", settings.value("scale_expr"))
settings.setValue(key + "bbox_expr", settings.value("bbox_expr"))
delete_config_from_settings("", settings)
self.tool_bar.addWidget(self.config_combo)
# Add search edit box
self.search_line_edit = QgsFilterLineEdit()
self.search_line_edit.setPlaceholderText('Search for...')
self.search_line_edit.setMaximumWidth(768)
self.tool_bar.addWidget(self.search_line_edit)
self.config_combo.currentIndexChanged.connect(
self.change_configuration)
# Set up the completer
self.completer = QCompleter([]) # Initialise with en empty list
self.completer.setCaseSensitivity(Qt.CaseInsensitive)
self.completer.setMaxVisibleItems(1000)
self.completer.setModelSorting(
QCompleter.UnsortedModel) # Sorting done in PostGIS
self.completer.setCompletionMode(QCompleter.UnfilteredPopupCompletion
) # Show all fetched possibilities
self.completer.activated[QModelIndex].connect(self.on_result_selected)
self.completer.highlighted[QModelIndex].connect(
self.on_result_highlighted)
self.search_line_edit.setCompleter(self.completer)
# Connect any signals
self.search_line_edit.textEdited.connect(self.on_search_text_changed)
# Search results
self.search_results = []
# Set up a timer to periodically perform db queries as required
self.db_timer.timeout.connect(self.do_db_operations)
self.db_timer.start(100)
# Read config
self.read_config(config_list[0] if config_list else "")
self.locator_filter = locator_filter.DiscoveryLocatorFilter(self)
self.iface.registerLocatorFilter(self.locator_filter)
# Debug
# import pydevd; pydevd.settrace('localhost', port=5678)
def unload(self):
# Stop timer
self.db_timer.stop()
# Disconnect any signals
self.db_timer.timeout.disconnect(self.do_db_operations)
self.completer.highlighted[QModelIndex].disconnect(
self.on_result_highlighted)
self.completer.activated[QModelIndex].disconnect(
self.on_result_selected)
self.search_line_edit.textEdited.disconnect(
self.on_search_text_changed)
# Remove the new toolbar
self.tool_bar.clear() # Clear all actions
self.iface.mainWindow().removeToolBar(self.tool_bar)
self.iface.deregisterLocatorFilter(self.locator_filter)
self.locator_filter = None
def clear_suggestions(self):
model = self.completer.model()
model.setStringList([])
def on_search_text_changed(self, new_search_text):
"""
This function is called whenever the user modified the search text
1. Open a database connection
2. Make the query
3. Update the QStringListModel with these results
4. Store the other details in self.search_results
"""
self.query_text = new_search_text
if len(new_search_text) < 3:
# Clear any previous suggestions in case the user is 'backspacing'
self.clear_suggestions()
return
if self.data_type == "postgres":
query_text, query_dict = dbutils.get_search_sql(
new_search_text, self.postgisgeomcolumn,
self.postgissearchcolumn, self.echosearchcolumn,
self.postgisdisplaycolumn, self.extra_expr_columns,
self.postgisschema, self.postgistable)
self.schedule_search(query_text, query_dict)
elif self.data_type == "gpkg":
query_text = (new_search_text, self.postgissearchcolumn,
self.echosearchcolumn,
self.postgisdisplaycolumn.split(","),
self.extra_expr_columns, self.layer)
self.schedule_search(query_text, None)
elif self.data_type == "mssql":
query_text = mssql_utils.get_search_sql(
new_search_text, self.postgisgeomcolumn,
self.postgissearchcolumn, self.echosearchcolumn,
self.postgisdisplaycolumn, self.extra_expr_columns,
self.postgisschema, self.postgistable)
self.schedule_search(query_text, None)
def do_db_operations(self):
if self.next_query_time is not None and self.next_query_time < time.time(
):
# It's time to run a query
self.next_query_time = None # Prevent this query from being repeated
self.last_query_time = time.time()
self.perform_search()
else:
# We're not performing a query, close the db connection if it's been open for > 60s
if time.time() > self.last_query_time + self.db_idle_time:
self.db_conn = None
def perform_search(self):
db = self.get_db()
self.search_results = []
suggestions = []
if self.data_type == "postgres":
cur = db.cursor()
try:
cur.execute(self.query_sql, self.query_dict)
except psycopg2.Error as e:
err_info = "Failed to execute the search query. Please, check your settings. Error message:\n\n"
err_info += f"{e.pgerror}"
QMessageBox.critical(None, "Discovery", err_info)
return
result_set = cur.fetchall()
elif self.data_type == "mssql":
result_set = mssql_utils.execute(db, self.query_sql)
elif self.data_type == "gpkg":
result_set = gpkg_utils.search_gpkg(*self.query_sql)
for row in result_set:
geom, epsg, suggestion_text = row[0], row[1], row[2]
extra_data = {}
for idx, extra_col in enumerate(self.extra_expr_columns):
extra_data[extra_col] = row[3 + idx]
self.search_results.append(
(geom, epsg, suggestion_text, extra_data))
suggestions.append(suggestion_text)
model = self.completer.model()
model.setStringList(suggestions)
self.completer.complete()
def schedule_search(self, query_text, query_dict):
# Update the search text and the time after which the query should be executed
self.query_sql = query_text
self.query_dict = query_dict
self.next_query_time = time.time() + self.search_delay
def show_bar_info(self, info_text):
"""Optional show info bar message with selected result information"""
self.iface.messageBar().clearWidgets()
if self.bar_info_time:
self.iface.messageBar().pushMessage("Discovery",
info_text,
level=Qgis.Info,
duration=self.bar_info_time)
def on_result_selected(self, result_index):
# What to do when the user makes a selection
self.select_result(self.search_results[result_index.row()])
def select_result(self, result_data):
geometry_text, src_epsg, suggestion_text, extra_data = result_data
location_geom = QgsGeometry.fromWkt(geometry_text)
canvas = self.iface.mapCanvas()
dst_srid = canvas.mapSettings().destinationCrs().authid()
transform = QgsCoordinateTransform(
QgsCoordinateReferenceSystem(src_epsg),
QgsCoordinateReferenceSystem(dst_srid),
canvas.mapSettings().transformContext())
# Ensure the geometry from the DB is reprojected to the same SRID as the map canvas
location_geom.transform(transform)
location_centroid = location_geom.centroid().asPoint()
# show temporary marker
if location_geom.type() == QgsWkbTypes.PointGeometry:
self.show_marker(location_centroid)
elif location_geom.type() == QgsWkbTypes.LineGeometry or \
location_geom.type() == QgsWkbTypes.PolygonGeometry:
self.show_line_rubber_band(location_geom)
else:
#unsupported geometry type
pass
# Adjust map canvas extent
zoom_method = 'Move and Zoom'
if zoom_method == 'Move and Zoom':
# with higher priority try to use exact bounding box to zoom to features (if provided)
bbox_str = eval_expression(self.bbox_expr, extra_data)
rect = bbox_str_to_rectangle(bbox_str)
if rect is not None:
# transform the rectangle in case of OTF projection
rect = transform.transformBoundingBox(rect)
else:
# bbox is not available - so let's just use defined scale
# compute target scale. If the result is 2000 this means the target scale is 1:2000
rect = location_geom.boundingBox()
if rect.isEmpty():
scale_denom = eval_expression(self.scale_expr,
extra_data,
default=2000.)
rect = canvas.mapSettings().extent()
rect.scale(scale_denom / canvas.scale(), location_centroid)
else:
# enlarge geom bbox to have some margin
rect.scale(1.2)
canvas.setExtent(rect)
elif zoom_method == 'Move':
current_extent = QgsGeometry.fromRect(
self.iface.mapCanvas().extent())
dx = location_centroid.x() - location_centroid.x()
dy = location_centroid.y() - location_centroid.y()
current_extent.translate(dx, dy)
canvas.setExtent(current_extent.boundingBox())
canvas.refresh()
self.line_edit_timer.start(0)
if self.info_to_clipboard:
QApplication.clipboard().setText(suggestion_text)
suggestion_text += ' (copied to clipboard)'
self.show_bar_info(suggestion_text)
def on_result_highlighted(self, result_idx):
self.line_edit_timer.start(0)
def reset_line_edit_after_move(self):
self.search_line_edit.setText(self.query_text)
def get_db(self):
# Create a new new connection if required
if self.db_conn is None:
if self.data_type == "postgres":
self.db_conn = dbutils.get_connection(self.conn_info)
elif self.data_type == "mssql":
self.db_conn = mssql_utils.get_mssql_conn(self.conn_info)
return self.db_conn
def change_configuration(self):
self.search_line_edit.setText("")
self.line_edit_timer.start(0)
self.read_config(self.config_combo.currentText())
def read_config(self, key=""):
# the following code reads the configuration file which setups the plugin to search in the correct database,
# table and method
settings = QgsSettings()
settings.beginGroup("/Discovery")
connection = settings.value(key + "connection", "", type=str)
self.data_type = settings.value(key + "data_type", "", type=str)
self.file = settings.value(key + "file", "", type=str)
self.postgisschema = settings.value(key + "schema", "", type=str)
self.postgistable = settings.value(key + "table", "", type=str)
self.postgissearchcolumn = settings.value(key + "search_column",
"",
type=str)
self.echosearchcolumn = settings.value(key + "echo_search_column",
True,
type=bool)
self.postgisdisplaycolumn = settings.value(key + "display_columns",
"",
type=str)
self.postgisgeomcolumn = settings.value(key + "geom_column",
"",
type=str)
if settings.value("marker_time_enabled", True, type=bool):
self.display_time = settings.value("marker_time", 5000, type=int)
else:
self.display_time = -1
if settings.value("bar_info_time_enabled", True, type=bool):
self.bar_info_time = settings.value("bar_info_time", 30, type=int)
else:
self.bar_info_time = 0
self.info_to_clipboard = settings.value("info_to_clipboard",
True,
type=bool)
scale_expr = settings.value(key + "scale_expr", "", type=str)
bbox_expr = settings.value(key + "bbox_expr", "", type=str)
if self.is_displayed:
self.hide_marker()
self.hide_rubber_band()
self.is_displayed = False
self.make_enabled(False) # assume the config is invalid first
self.db_conn = None
if self.data_type == "postgres":
self.conn_info = dbutils.get_postgres_conn_info(connection)
self.layer = None
if len(connection) == 0 or len(self.postgisschema) == 0 or len(self.postgistable) == 0 or \
len(self.postgissearchcolumn) == 0 or len(self.postgisgeomcolumn) == 0:
return
if len(self.conn_info) == 0:
iface.messageBar().pushMessage(
"Discovery",
"The database connection '%s' does not exist!" %
connection,
level=Qgis.Critical)
return
if self.data_type == "mssql":
self.conn_info = mssql_utils.get_mssql_conn_info(connection)
self.layer = None
if len(connection) == 0 or len(self.postgisschema) == 0 or len(self.postgistable) == 0 or \
len(self.postgissearchcolumn) == 0 or len(self.postgisgeomcolumn) == 0:
return
if len(self.conn_info) == 0:
iface.messageBar().pushMessage(
"Discovery",
"The database connection '%s' does not exist!" %
connection,
level=Qgis.Critical)
return
elif self.data_type == "gpkg":
self.layer = QgsVectorLayer(
self.file + '|layername=' + self.postgistable,
self.postgistable, 'ogr')
self.conn_info = None
self.extra_expr_columns = []
self.scale_expr = None
self.bbox_expr = None
self.make_enabled(True)
# optional scale expression when zooming in to results
if len(scale_expr) != 0:
expr = QgsExpression(scale_expr)
if expr.hasParserError():
iface.messageBar().pushMessage("Discovery",
"Invalid scale expression: " +
expr.parserErrorString(),
level=Qgis.Warning)
else:
self.scale_expr = scale_expr
self.extra_expr_columns += expr.referencedColumns()
# optional bbox expression when zooming in to results
if len(bbox_expr) != 0:
expr = QgsExpression(bbox_expr)
if expr.hasParserError():
iface.messageBar().pushMessage("Discovery",
"Invalid bbox expression: " +
expr.parserErrorString(),
level=Qgis.Warning)
else:
self.bbox_expr = bbox_expr
self.extra_expr_columns += expr.referencedColumns()
def show_config_dialog(self):
dlg = config_dialog.ConfigDialog()
if (self.config_combo.currentIndex() >= 0):
dlg.configOptions.setCurrentIndex(self.config_combo.currentIndex())
if dlg.exec_():
dlg.write_config()
self.config_combo.clear()
for key in [
dlg.configOptions.itemText(i)
for i in range(dlg.configOptions.count())
]:
self.config_combo.addItem(key)
self.config_combo.setCurrentIndex(dlg.configOptions.currentIndex())
self.change_configuration()
def make_enabled(self, enabled):
self.search_line_edit.setEnabled(enabled)
self.search_line_edit.setPlaceholderText(
"Search for..."
if enabled else "Search disabled: check configuration")
def show_marker(self, point):
for m in [self.marker, self.marker2]:
m.setCenter(point)
m.setOpacity(1.0)
m.setVisible(True)
if self.display_time == -1:
self.is_displayed = True
else:
QTimer.singleShot(self.display_time, self.hide_marker)
def hide_marker(self):
opacity = self.marker.opacity()
if opacity > 0.:
# produce a fade out effect
opacity -= 0.1
self.marker.setOpacity(opacity)
self.marker2.setOpacity(opacity)
QTimer.singleShot(100, self.hide_marker)
else:
self.marker.setVisible(False)
self.marker2.setVisible(False)
def show_line_rubber_band(self, geom):
self.rubber_band.reset(geom.type())
self.rubber_band.setToGeometry(geom, None)
self.rubber_band.setVisible(True)
self.rubber_band.setOpacity(1.0)
self.rubber_band.show()
if self.display_time == -1:
self.is_displayed = True
else:
QTimer.singleShot(self.display_time, self.hide_rubber_band)
pass
def hide_rubber_band(self):
opacity = self.rubber_band.opacity()
if opacity > 0.:
# produce a fade out effect
opacity -= 0.1
self.rubber_band.setOpacity(opacity)
QTimer.singleShot(100, self.hide_rubber_band)
else:
self.rubber_band.setVisible(False)
self.rubber_band.hide()
class CompletingTextEdit(QTextEdit):
def __init__(self, parent=None):
super().__init__(parent)
self.completerSequence = QKeySequence("Ctrl+Space")
self._completer = QCompleter()
self._completer.setWidget(self)
self._completer.activated.connect(self.insertCompletion)
def insertCompletion(self, completion):
if self._completer.widget() is not self:
return
tc = self.textCursor()
extra = len(completion) - len(self._completer.completionPrefix())
tc.movePosition(QTextCursor.Left)
tc.movePosition(QTextCursor.EndOfWord)
tc.insertText(completion[-extra:])
self.setTextCursor(tc)
def textUnderCursor(self):
tc = self.textCursor()
tc.select(QTextCursor.WordUnderCursor)
return tc.selectedText()
def loadFromFile(self, fileName):
f = QFile(fileName)
if not f.open(QFile.ReadOnly):
model = QStringListModel()
self._completer.setModel(model)
QApplication.setOverrideCursor(QCursor(Qt.WaitCursor))
words = []
while not f.atEnd():
line = f.readLine().trimmed()
if line.length() != 0:
try:
line = str(line, encoding='utf-8')
except TypeError:
line = str(line)
words.append(line)
QApplication.restoreOverrideCursor()
model = QStringListModel(words)
self._completer.setModel(model)
def loadFromList(self, words):
model = QStringListModel(words)
self._completer.setModel(model)
def keyPressEvent(self, e):
if self._completer.popup().isVisible():
# The following keys are forwarded by the completer to the widget.
if e.key() in (Qt.Key_Enter, Qt.Key_Return, Qt.Key_Escape,
Qt.Key_Tab, Qt.Key_Backtab):
e.ignore()
# Let the completer do default behavior.
return
newSeq = QKeySequence(e.modifiers() | e.key())
isShortcut = newSeq == self.completerSequence
if not isShortcut:
# Do not process the shortcut when we have a completer.
super().keyPressEvent(e)
return
ctrlOrShift = e.modifiers() & (Qt.ControlModifier | Qt.ShiftModifier)
if ctrlOrShift and not e.text():
return
eow = "~!@#$%^&*()_+{}|:\"<>?,./;'[]\\-="
hasModifier = (e.modifiers() != Qt.NoModifier) and not ctrlOrShift
completionPrefix = self.textUnderCursor()
if not isShortcut and (hasModifier or not e.text()
or len(completionPrefix) < 3
or e.text()[-1] in eow):
self._completer.popup().hide()
return
if completionPrefix != self._completer.completionPrefix():
self._completer.setCompletionPrefix(completionPrefix)
self._completer.popup().setCurrentIndex(
self._completer.completionModel().index(0, 0))
cr = self.cursorRect()
cr.setWidth(
self._completer.popup().sizeHintForColumn(0) +
self._completer.popup().verticalScrollBar().sizeHint().width())
self._completer.complete(cr)
class ExtendedLineEdit(QLineEdit):
signal_send_movie = pyqtSignal(list)
signal_search_movie = pyqtSignal(str)
signal_request_movie_data = pyqtSignal(int)
signal_set_loading = pyqtSignal(str, bool)
DEBUG = False
def __init__(self, parent=None):
super(ExtendedLineEdit, self).__init__(parent)
self.movies = []
self.completer_lw = QListWidget()
self.model = self.completer_lw.model()
self.completer = QCompleter(self.model, self)
self.completer.setPopup(self.completer_lw)
self.completer.setCompletionMode(QCompleter.UnfilteredPopupCompletion)
self.completer.setCompletionRole(
Qt.UserRole
) # Change role because default EditRole is paited to list somehow
self.setCompleter(self.completer)
self.textEdited.connect(self.text_edited)
#self.completer.activated[QModelIndex].connect(self.on_completer_activated)
#self.completer.activated[str].connect(self.on_completer_activated_str)
self.completer_lw.itemClicked.connect(self.item_clicked)
self.installEventFilter(self)
def eventFilter(self, obj, event):
if event.type() == QEvent.MouseButtonPress:
if event.button() == Qt.LeftButton:
self.completer.complete()
return super(ExtendedLineEdit, self).eventFilter(obj, event)
def setText(self, text: str) -> None:
if self.DEBUG: print('setText', text, self.sender())
super(ExtendedLineEdit, self).setText(text)
if not isinstance(self.sender(), QCompleter) and text:
self.text_edited(text)
@pyqtSlot(list)
def update_movies_list(self, result):
if self.DEBUG: print('update_movies_list', result[0], len(result) - 1)
type = result.pop(0)
if type == 'db':
self.movies = [x + [
type,
] for x in result]
self.completer_lw.clear()
self.completer.complete()
else:
for item in result:
self.movies.append(item + [
type,
])
for item in result:
cwidget = MyWidget()
cwidget.label_movie_name.setText(item[1] if item[1] else item[2])
cwidget.label_original_name.setText(item[2])
cwidget.label_source.setText(type)
cwidget.label_year.setText(str(item[3]))
completer_myQListWidgetItem = QListWidgetItem(self.completer_lw)
completer_myQListWidgetItem.setSizeHint(cwidget.sizeHint())
completer_myQListWidgetItem.setData(Qt.UserRole, item[1])
self.completer_lw.addItem(completer_myQListWidgetItem)
self.completer_lw.setItemWidget(completer_myQListWidgetItem,
cwidget)
if self.hasFocus() and not self.completer_lw.isVisible() and len(
self.movies) > 0:
self.completer.complete()
@pyqtSlot(str)
def text_edited(self, text):
if self.DEBUG: print('text_edited', text, self.sender())
if text and isinstance(self.sender(), ExtendedLineEdit):
self.signal_search_movie.emit(text)
@pyqtSlot(str)
def on_completer_activated_str(self, name: str):
if self.DEBUG: print('on_completer_activated_str', name)
@pyqtSlot(QModelIndex)
def on_completer_activated(self, index: QModelIndex):
if self.DEBUG: print('on_completer_activated', index.row())
item = self.movies[index.row()]
if len(item) > 13:
self.signal_send_movie.emit(item[:13])
self.signal_request_movie_data.emit(item[13])
else:
self.signal_send_movie.emit(item)
@pyqtSlot(QListWidgetItem)
def item_clicked(self, item: QListWidgetItem):
if self.DEBUG: print('item_clicked', item, [i[1] for i in self.movies])
index = self.completer_lw.indexFromItem(item)
item = self.movies[index.row()]
type = item[-1]
if type == 'db':
self.signal_send_movie.emit(item)
else:
self.signal_set_loading.emit('movie', True)
if len(item) > 13:
self.signal_send_movie.emit(item[:13])
self.signal_request_movie_data.emit(item[13])
else:
self.signal_send_movie.emit(item)
def reset(self):
if self.DEBUG: print('reset')
self.completer_lw.clear()
self.clearFocus()
class TextStatusEditComplete(TextStatusEdit):
""" Adds Completion functions to the base class
This class extends 'TextStatusEdit' by:
1. providing a QCompleter to validate lines for the
'fixupText' and 'lineChanged' signals
2. providing a popup for suggested completions as
the user is typing
3. auto-completing the line when the user selects
a suggestion.
The task of auto completion and providing suggestions
is provided directly by this class.
The task validating and cleaning up text is provided by
the PluginFinder.
"""
def __init__(self, parent: QWidget = None):
super().__init__(parent)
self._dataModel = None
self._monitorDbChanges = False
self._enableAutoCompletion = False
self._completedAndSelected = False
self._completer = QCompleter(self)
self._completer.setWidget(self)
self._completer.setWrapAround(False)
self._completer.setCompletionMode(QCompleter.PopupCompletion)
self._completer.setCaseSensitivity(Qt.CaseInsensitive)
self._completer.setFilterMode(Qt.MatchStartsWith)
self._completer.setModelSorting(
QCompleter.CaseInsensitivelySortedModel)
self._completer.activated.connect(self.replaceLine)
self._pluginFinder = PluginFinder(self._completer, self)
self.fixupText.connect(self._pluginFinder.fixupText)
self.lineChanged.connect(self._pluginFinder.setRowForLine)
QShortcut(Qt.CTRL + Qt.Key_E, self, self.toggleAutoCompletion)
QShortcut(Qt.CTRL + Qt.Key_T, self, self.suggestCompletions)
# --- Methods related to the completer's underlying data model
def setModel(self, model: QAbstractItemModel):
self._completer.setModel(model)
def _updateModelSignals(self):
""" We do not need to check for column changes due to
the way our PluginModel is structured. """
if self._dataModel is not None:
self._dataModel.rowsMoved.disconnect(self.resetData)
self._dataModel.rowsInserted.disconnect(self.resetData)
self._dataModel.rowsRemoved.disconnect(self.resetData)
self._dataModel.modelReset.disconnect(self.resetData)
self._dataModel.dataChanged.disconnect(self.resetData)
self._dataModel.layoutChanged.disconnect(self.resetData)
if self._monitorDbChanges:
self._dataModel = self._completer.model()
if self._dataModel is not None:
self._dataModel.rowsMoved.connect(self.resetData)
self._dataModel.rowsInserted.connect(self.resetData)
self._dataModel.rowsRemoved.connect(self.resetData)
self._dataModel.modelReset.connect(self.resetData)
self._dataModel.dataChanged.connect(self.resetData)
self._dataModel.layoutChanged.connect(self.resetData)
else:
self._dataModel = None
def monitorDbChanges(self, enable: bool):
""" Enable invalidating line status when
the data model changes.
Depending on the underlying data model, it may
be unnecessary to monitor these changes, or, a
higher level class can monitor specific signals
more efficiently. So, this is not enabled
by default. """
if self._monitorDbChanges == enable:
return
self._monitorDbChanges = enable
if enable:
self._dataModel = self._completer.model()
self._completer.completionModel().sourceModelChanged.connect(
self._updateModelSignals)
else:
self._completer.completionModel().sourceModelChanged.disconnect(
self._updateModelSignals)
self._updateModelSignals()
# ---- Methods related to line completion
def completer(self):
return self._completer
def enableAutoCompletion(self, enable: bool):
self._enableAutoCompletion = enable
def toggleAutoCompletion(self):
self.enableAutoCompletion(not self._enableAutoCompletion)
def _textUnderCursor(self):
tc = self.textCursor()
if tc.positionInBlock() == 0 and len(tc.block().text()) > 1:
tc.movePosition(QTextCursor.NextCharacter)
tc.movePosition(QTextCursor.StartOfLine, QTextCursor.KeepAnchor)
return tc.selectedText().lstrip()
def suggestCompletions(self):
if self.isLineInvalid(self.textCursor().blockNumber()):
self._suggestCompletionsForText(self._textUnderCursor())
def _suggestCompletionsForText(self, prefix: str):
if not prefix:
return
if prefix != self._completer.completionPrefix():
self._completer.setCompletionPrefix(prefix)
self._completer.popup().setCurrentIndex(
self._completer.completionModel().index(0, 0))
if self._completer.completionCount() == 1:
self._insertSuggestion(self._completer.currentCompletion())
else:
rect = self.cursorRect()
rect.moveRight(self.statusAreaWidth())
rect.setWidth(
self._completer.popup().sizeHintForColumn(
self._completer.completionColumn()) +
self._completer.popup().verticalScrollBar().sizeHint().width())
self._completer.complete(rect)
def _insertSuggestion(self, text: str):
""" Only one suggestion matched, prefill line """
cursor = self.textCursor()
# handle when cursor is in middle of line
if not cursor.atBlockEnd():
cursor.beginEditBlock()
cursor.select(QTextCursor.LineUnderCursor)
cursor.removeSelectedText()
cursor.insertText(text)
cursor.movePosition(QTextCursor.StartOfLine)
cursor.movePosition(QTextCursor.EndOfLine, QTextCursor.KeepAnchor)
self._completedAndSelected = True
self.setTextCursor(cursor)
cursor.endEditBlock()
return
# handle when cursor at end of line
cursor.beginEditBlock()
numCharsToComplete = len(text) - len(
self._completer.completionPrefix())
insertionPosition = cursor.position()
cursor.movePosition(QTextCursor.EndOfLine, QTextCursor.KeepAnchor)
cursor.removeSelectedText()
cursor.insertText(text[-numCharsToComplete:])
cursor.setPosition(insertionPosition)
cursor.movePosition(QTextCursor.EndOfLine, QTextCursor.KeepAnchor)
self._completedAndSelected = True
self.setTextCursor(cursor)
cursor.endEditBlock()
def keyPressEvent(self, event: QKeyEvent):
if self._completedAndSelected and self.handledCompletedAndSelected(
event):
return
self._completedAndSelected = False
if self._completer.popup().isVisible():
ignoredKeys = [
Qt.Key_Up,
Qt.Key_Down,
Qt.Key_Enter,
Qt.Key_Return,
Qt.Key_Tab,
Qt.Key_Escape,
]
if event.key() in ignoredKeys:
event.ignore()
return
self._completer.popup().hide()
super().keyPressEvent(event)
if not self._enableAutoCompletion:
return
ctrlOrShift = (event.modifiers() & Qt.ShiftModifier == Qt.ShiftModifier
or event.modifiers() & Qt.ControlModifier
== Qt.ControlModifier)
if ctrlOrShift and not event.text():
return
if self.textCursor().atBlockEnd():
self.suggestCompletions()
def mousePressEvent(self, event: QMouseEvent):
if self._completedAndSelected:
self._completedAndSelected = False
self.document().undo()
super().mousePressEvent(event)
def handledCompletedAndSelected(self, event: QKeyEvent):
""" The line is prefilled when only one completion matches. The user
can accept the suggestion by pressing 'Enter'. The user can reject
the suggestion by pressing 'Esc' or by continuing to type. """
self._completedAndSelected = False
cursor = self.textCursor()
acceptKeys = [Qt.Key_Enter, Qt.Key_Return, Qt.Key_Tab]
if event.key() in acceptKeys:
self.replaceLine(self._completer.currentCompletion())
elif event.key() == Qt.Key_Escape:
self.document().undo()
else:
self.document().undo()
return False
self.setTextCursor(cursor)
event.accept()
return True
def replaceLine(self, text: str):
cursor = self.textCursor()
cursor.beginEditBlock()
cursor.select(QTextCursor.LineUnderCursor)
cursor.removeSelectedText()
cursor.insertText(text)
cursor.movePosition(QTextCursor.EndOfLine)
self.setTextCursor(cursor)
cursor.endEditBlock()
# ---- Methods related to Context Menu
def createStandardContextMenu(self, pos: QPoint):
menu = super().createStandardContextMenu(pos)
menu.addSeparator()
autoCompletionAction = menu.addAction(
QIcon(),
self.tr("Enable Auto Complete"),
self.toggleAutoCompletion,
QKeySequence(Qt.CTRL + Qt.Key_E),
)
autoCompletionAction.setCheckable(True)
autoCompletionAction.setChecked(self._enableAutoCompletion)
completionAction = menu.addAction(
QIcon(),
self.tr("Suggest Completions"),
self.suggestCompletions,
QKeySequence(Qt.CTRL + Qt.Key_T),
)
completionAction.setEnabled(
self.isLineInvalid(self.textCursor().blockNumber()))
return menu
class LineEditWithHistory(QLineEdit):
elementSelected = pyqtSignal(str)
nowTime = 0
oldTime = 0
def __init__(self,
parent,
title='历史记录',
configPath='',
qssFilePath="./Resources/stylesheet/style.qss"):
super(LineEditWithHistory, self).__init__(parent)
self.qssFilePath = qssFilePath
if "" == configPath:
self.configPath = "./config/{parentName}/LineEditWithHistory.ini".format(
parentName=type(parent).__name__)
else:
if 0 <= os.path.basename(configPath).find("."):
self.configPath = configPath
else:
self.configPath = "{basePath}/LineEditWithHistory.ini".format(
basePath=configPath)
self.title = title
self.sectionName = '{title}'.format(title=self.title)
self.HistoryListChanged = False
self.commandHasSent = False
# 用于存放历史记录的List
self.inputList = []
self.__loadHistory()
self.__widgetInit()
def Exit(self):
self.__saveHistory()
def __widgetInit(self):
# LineEdit设置QCompleter，用于显示历史记录
self.completer = QCompleter(self)
self.listModel = QStringListModel(self.inputList, self)
self.completer.setCaseSensitivity(Qt.CaseInsensitive)
self.completer.setModel(self.listModel)
self.completer.activated.connect(self.Slot_completer_activated,
type=Qt.QueuedConnection)
try:
with open(self.qssFilePath, "r") as fh:
self.completer.popup().setStyleSheet(fh.read())
except Exception as e:
logger.info('读取QSS文件失败' + str(e))
self.setCompleter(self.completer)
# 输入完成按下回车后去重添加到历史记录中
self.returnPressed.connect(self.Slot_updateHistoryModule)
def __loadHistory(self):
historyList = self.inputList
historyOp = Public.Public_ConfigOp(self.configPath)
rt = historyOp.ReadAllBySection(self.sectionName)
if True is rt[0]:
for item in rt[1]:
if (item[1] not in historyList) and ("" != item[1]):
historyList.append(item[1])
else:
logger.info(rt[1])
def __saveHistory(self):
ipOp = Public.Public_ConfigOp(self.configPath)
if True is self.HistoryListChanged:
ipOp.RemoveSection(self.sectionName)
ipOp.SaveAll()
for index, item in enumerate(self.inputList):
ipOp.SaveConfig(self.sectionName, str(index), item)
def updateHistory(self):
content = self.text()
if content != "":
if content not in self.inputList:
self.inputList.append(content)
self.listModel.setStringList(self.inputList)
self.completer.setCompletionMode(QCompleter.PopupCompletion)
self.HistoryListChanged = True
self.__sendElement()
def Slot_updateHistoryModule(self):
self.updateHistory()
# 按下回车或单击后恢复显示模式 https://doc.qt.io/qt-5/qcompleter.html#activated
def Slot_completer_activated(self, text):
self.completer.setCompletionMode(QCompleter.PopupCompletion)
self.__sendElement()
def __sendElement(self):
self.elementSelected.emit(self.text())
def deleteEle(self, ele):
if ele in self.inputList:
self.inputList.remove(ele)
self.listModel.setStringList(self.inputList)
self.completer.setCompletionMode(QCompleter.PopupCompletion)
self.HistoryListChanged = True
def event(self, event):
# 按下Tab键时弹出所有记录
if event.type() == QEvent.KeyPress:
if event.key() == Qt.Key_Tab:
# 设置不过滤显示 https://doc.qt.io/qt-5/qcompleter.html#completionMode-prop
if self.completer.completionCount() > 0:
self.completer.setCompletionMode(
QCompleter.UnfilteredPopupCompletion)
self.listModel.setStringList(self.inputList)
self.completer.complete()
self.completer.popup().show()
return True
elif event.key() == Qt.Key_Delete:
self.deleteEle(self.text())
return super().event(event)
def suggest(self, words):
completer = QCompleter(words, self)
completer.setCaseSensitivity(Qt.CaseInsensitive)
self.comboxBox.setCompleter(completer)
completer.complete()
class DiscoveryPlugin:
def __init__(self, _iface):
# Save reference to the QGIS interface
self.iface = _iface
# initialize plugin directory
self.plugin_dir = os.path.dirname(__file__)
# Variables to facilitate delayed queries and database connection management
self.icon_loading = ':plugins/_Discovery_sqlite/icons/loading.gif'
self.db_timer = QTimer()
self.line_edit_timer = QTimer()
self.line_edit_timer.setSingleShot(True)
self.line_edit_timer.timeout.connect(self.reset_line_edit_after_move)
self.next_query_time = None
self.last_query_time = time.time()
self.db_conn = None
self.search_delay = 0.5 # s
self.query_sql = ''
self.query_text = ''
self.query_dict = {}
self.db_idle_time = 60.0 # s
self.search_results = []
self.tool_bar = None
self.search_line_edit = None
self.completer = None
self.marker = QgsVertexMarker(iface.mapCanvas())
self.marker.setIconSize(15)
self.marker.setPenWidth(2)
self.marker.setColor(QColor(226, 27, 28)) #51,160,44))
self.marker.setZValue(11)
self.marker.setVisible(False)
self.marker2 = QgsVertexMarker(iface.mapCanvas())
self.marker2.setIconSize(16)
self.marker2.setPenWidth(4)
self.marker2.setColor(QColor(255, 255, 255, 200))
self.marker2.setZValue(10)
self.marker2.setVisible(False)
def initGui(self):
# Create a new toolbar
self.tool_bar = self.iface.addToolBar(u'Панель поиска')
self.tool_bar.setObjectName('Discovery_sqlite_Plugin')
# Add search edit box
self.search_line_edit = QgsFilterLineEdit()
self.search_line_edit.setSelectOnFocus(True)
self.search_line_edit.setShowSearchIcon(True)
self.search_line_edit.setPlaceholderText(
u'Поиск адреса или участка...')
# self.search_line_edit.setMaximumWidth(768)
self.tool_bar.addWidget(self.search_line_edit)
# loading indicator
self.load_movie = QMovie()
self.label_load = QLabel()
self.tool_bar.addWidget(self.label_load)
# Set up the completer
model = QStandardItemModel()
self.completer = QCompleter([]) # Initialise with en empty list
self.completer.setCaseSensitivity(Qt.CaseInsensitive)
self.completer.setMaxVisibleItems(30)
self.completer.setModelSorting(
QCompleter.UnsortedModel) # Sorting done in PostGIS
self.completer.setCompletionMode(QCompleter.UnfilteredPopupCompletion
) # Show all fetched possibilities
self.completer.setModel(model)
tableView = QTableView()
tableView.verticalHeader().setVisible(False)
tableView.horizontalHeader().setVisible(False)
tableView.setSelectionBehavior(QTableView.SelectRows)
tableView.setShowGrid(False)
# tableView.verticalHeader().setSectionResizeMode(QHeaderView.ResizeToContents)
tableView.verticalHeader().setSectionResizeMode(QHeaderView.Fixed)
fontsize = QFontMetrics(
tableView.verticalHeader().font()).height() + 2 #font size
tableView.verticalHeader().setDefaultSectionSize(
fontsize) #font size 15
tableView.horizontalHeader().setSectionResizeMode(
QHeaderView.ResizeToContents)
tableView.horizontalHeader().setStretchLastSection(True)
tableView.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
self.completer.setCompletionColumn(0)
self.completer.setPopup(tableView)
self.completer.activated[QModelIndex].connect(self.on_result_selected)
self.completer.highlighted[QModelIndex].connect(
self.on_result_highlighted)
self.search_line_edit.setCompleter(self.completer)
# Connect any signals
self.search_line_edit.textEdited.connect(self.on_search_text_changed)
self.search_line_edit.returnPressed.connect(self.returnPressed)
self.read_config()
# Search results
self.search_results = []
# Set up a timer to periodically perform db queries as required
self.db_timer.timeout.connect(self.schedule_search)
def read_config(self):
qstring = ''
self.data = self.settings_path()
try:
for line in self.data[1:]:
words = line.split(';')
postgissearchcolumn = words[2].strip()
postgistable = words[0].strip()
geomcolumn = words[3].strip()
layername = words[4].strip()
isSelect = int(words[5].strip())
connection = sqlite3.connect(os.path.join(self.dbfile.strip()))
cur = connection.cursor()
qstring = u'select {2} from {0} where length({1})>0 LIMIT 1'.format(
postgistable, postgissearchcolumn, geomcolumn)
cur.execute(qstring)
connection.close()
self.make_enabled(True) # assume the config is invalid first
except Exception as E:
print(E)
self.make_enabled(False)
# включить или выключить поисковую строку в зависимости от результата проверки настроек
def make_enabled(self, enabled):
self.search_line_edit.setEnabled(enabled)
self.search_line_edit.setPlaceholderText(
u"Поиск адреса или участка..."
if enabled else u"Поиск отключен: проверьте конфигурацию")
def settings_path(self):
p = os.path.join(self.plugin_dir, 'layers.ini')
f = codecs.open(p, 'r', encoding='cp1251')
data = f.readlines()
dbfileline = data[0]
if dbfileline[:2] == u'\\\\':
self.dbfile = dbfileline
elif dbfileline[1] == u':':
self.dbfile = dbfileline
else:
self.dbfile = os.path.join(self.plugin_dir, dbfileline)
f.close()
return data
def unload(self):
self.db_timer.stop()
self.db_timer.timeout.disconnect(self.schedule_search)
self.completer.highlighted[QModelIndex].disconnect(
self.on_result_highlighted)
self.completer.activated[QModelIndex].disconnect(
self.on_result_selected)
self.search_line_edit.textEdited.disconnect(
self.on_search_text_changed)
self.search_line_edit.returnPressed.disconnect(self.returnPressed)
self.tool_bar.clear() # Clear all actions
self.iface.mainWindow().removeToolBar(self.tool_bar)
def clear_suggestions(self):
model = self.completer.model()
model.clear()
# model.setStringList([])
def returnPressed(self):
if self.completer.popup().isHidden():
self.do_search(self.search_line_edit.text())
# def setLoading(self, isLoading):
# if self.label_load is None:
# return
# if isLoading:
# load_movie = QMovie()
# load_movie.setFileName(self.icon_loading)
# self.label_load.setMovie(load_movie)
# load_movie.start()
# else:
# load_movie = QMovie()
# load_movie.stop()
# self.label_load.setMovie(load_movie)
def schedule_search(self):
if self.next_query_time is not None and self.next_query_time < time.time(
):
self.next_query_time = None # Prevent this query from being repeated
self.last_query_time = time.time()
self.do_search(self.search_line_edit.text())
self.db_timer.stop()
# self.setLoading(False)
self.search_line_edit.setShowSpinner(False)
else:
# self.setLoading(True)
self.search_line_edit.setShowSpinner(True)
if time.time() > self.last_query_time + self.db_idle_time:
self.db_conn = None
# def on_search_text_changed(self, new_search_text):
def on_search_text_changed(self, new_search_text):
# self.setLoading(False)
self.search_line_edit.setShowSpinner(False)
if len(new_search_text) < 3:
self.db_timer.stop()
self.clear_suggestions()
return
self.db_timer.start(300)
self.next_query_time = time.time() + self.search_delay
def do_search(self, new_search_text):
if len(new_search_text) < 3:
self.clear_suggestions()
return
self.clear_suggestions()
self.query_text = new_search_text
self.search_results = []
self.suggestions = []
for index, line in enumerate(self.data[1:]):
curline_layer = line
words = curline_layer.split(';')
searchcolumn = words[2].strip() # поле со значением для поиска
postgistable = words[0].strip() # таблица
geomcolumn = words[3].strip() # поле с геометрией
layername = words[4].strip(
) # имя слоя в легенде для соответствий и выделения
isSelect = int(
words[5].strip()) # выделять ли объект в слое layername
descript = words[1].strip(
) # описание. Выводится в списке результатов
query_text, query_dict = self.get_search_sql(
new_search_text, searchcolumn, postgistable)
query_sql = query_text
query_dict = query_dict
self.perform_search(query_sql, query_dict, descript, postgistable,
layername, isSelect, searchcolumn)
# QStringList - просто одна строка в выводе
# if len(self.suggestions) > 0:
# model = self.completer.model()
# model.setStringList(self.suggestions)
# print(model)
# self.completer.complete()
if len(self.suggestions) > 0:
# model = self.completer.model()
model = QStandardItemModel()
font = QFont()
font.setItalic(True)
font.setPointSize(7)
# заполняем модель
for i, line in enumerate(self.suggestions):
#icon
pixmap = QPixmap(':plugins/_Discovery_sqlite/icons/' +
line[2] + '.png')
pixmap = pixmap.scaledToHeight(10)
pixmap = pixmap.scaledToWidth(10)
# itemImage = QStandardItem()
# itemImage.setData(pixmap, Qt.DecorationRole)
# model.setItem(i, 0, itemImage)
itemLayer = QStandardItem(u"{1}[{0}]".format(
line[1], u' ' * 50))
itemLayer.setFont(font)
itemValue = QStandardItem(line[0])
itemValue.setData(pixmap, Qt.DecorationRole)
model.setItem(i, 0, itemValue)
model.setItem(i, 1, itemLayer)
self.completer.setModel(model)
self.completer.complete()
else:
model = self.completer.model()
# self.suggestions.append(u"<Не найдено>") # для QStringList
# model.setStringList(self.suggestions) # для QStringList
model.setItem(
0, 0, QStandardItem('<Не найдено>')) # для QStandardItemModel
self.completer.complete()
def perform_search(self, query_sql, query_dict, descript, tablename,
layername, isSelect, searchcolumn):
cur = self.get_db_cur()
cur.execute(query_sql, query_dict)
for row in cur.fetchall():
geom, suggestion_text = row[0], row[1]
self.search_results.append(geom)
self.suggestions.append([
suggestion_text, descript, tablename, layername, isSelect,
searchcolumn
])
# self.suggestions.append(suggestion_text) # для QStringList
def get_search_sql(self, search_text, search_column, table):
wildcarded_search_string = ''
for part in search_text.split():
wildcarded_search_string += '%' + part #.lower()
wildcarded_search_string += '%'
wildcarded_search_string = wildcarded_search_string
query_dict = {'search_text': wildcarded_search_string}
# wildcarded_search_string = wildcarded_search_string.encode('cp1251')
query_text = u"SELECT WKT_GEOMETRY AS geom, {0} AS suggestion_string FROM {1} WHERE ({0}) LIKE '{2}' ORDER BY {0} LIMIT 1000".format(
search_column, table, wildcarded_search_string)
# query_text = query_text.decode('cp1251')
return query_text, query_dict
def on_result_selected(self, result_index):
resultIndexRow = result_index.row()
if len(self.search_results) < 1:
self.search_line_edit.setPlaceholderText(u'')
return
# What to do when the user makes a selection
geometry_text = self.search_results[resultIndexRow]
location_geom = QgsGeometry.fromWkt(geometry_text)
canvas = self.iface.mapCanvas()
# dst_srid = canvas.mapRenderer().destinationCrs().authid()
# Ensure the geometry from the DB is reprojected to the same SRID as the map canvas
location_centroid = location_geom.centroid().asPoint()
result_text = self.completer.completionModel().index(
resultIndexRow, 0).data()
if self.suggestions[resultIndexRow][2] in (
u"adres_nd") and location_geom.type() == 0: # point
self.show_marker(location_centroid)
self.iface.mapCanvas().setExtent(location_geom.boundingBox())
self.iface.mapCanvas().zoomScale(1000)
layer_build = self.find_layer(u"Здания")
if layer_build != None:
layer_build.selectByIds([])
for feat in layer_build.getFeatures(
QgsFeatureRequest().setFilterRect(
QgsRectangle(self.iface.mapCanvas().extent()))):
if location_geom.intersects(feat.geometry()):
# self.show_marker_feature(feat.geometry())
self.iface.setActiveLayer(layer_build)
layer_build.selectByIds([feat.id()])
layer_build.triggerRepaint()
return
else: #not point
layername = self.suggestions[resultIndexRow][3]
isSelect = self.suggestions[resultIndexRow][4]
searchcolumn = self.suggestions[resultIndexRow][5]
box = location_geom.boundingBox()
if box.height() > box.width():
max = box.height()
else:
max = box.width()
box.grow(max * 0.10)
self.iface.mapCanvas().setExtent(box)
if isSelect == 1:
selLayer = self.find_layer(layername)
if selLayer is not None:
for feat in selLayer.getFeatures(
QgsFeatureRequest().setFilterRect(box)):
# print(feat[searchcolumn], str(result_text).strip())
try:
if str(feat[searchcolumn]) == str(
result_text).strip():
self.iface.setActiveLayer(selLayer)
selLayer.selectByIds([feat.id()])
selLayer.triggerRepaint()
break
except Exception as E:
print(E)
break
self.show_marker_feature(location_geom)
canvas.refresh()
self.line_edit_timer.start(0)
# self.db_timer.stop()
def get_db_cur(self):
# Create a new new connection if required
if self.db_conn is None:
self.db_conn = sqlite3.connect(os.path.join(self.dbfile.strip()))
return self.db_conn.cursor()
def on_result_highlighted(self, result_idx):
self.line_edit_timer.start(0)
def reset_line_edit_after_move(self):
self.search_line_edit.setText(self.query_text)
def find_layer(self, layer_name):
for search_layer in self.iface.mapCanvas().layers():
if search_layer.name() == layer_name:
return search_layer
return None
def show_marker(self, point):
for m in [self.marker, self.marker2]:
m.setCenter(point)
m.setOpacity(1.0)
m.setVisible(True)
QTimer.singleShot(4000, self.hide_marker)
def hide_marker(self):
opacity = self.marker.opacity()
if opacity > 0.:
# produce a fade out effect
opacity -= 0.1
self.marker.setOpacity(opacity)
self.marker2.setOpacity(opacity)
QTimer.singleShot(100, self.hide_marker)
else:
self.marker.setVisible(False)
self.marker2.setVisible(False)
def show_marker_feature(self, geom):
if geom.type() == 2: #poly
self.r = QgsRubberBand(iface.mapCanvas(), True)
elif geom.type() == 1: #line
self.r = QgsRubberBand(iface.mapCanvas(), False)
self.r.setToGeometry(geom, None)
self.r.setColor(QColor(255, 0, 0, 200))
self.r.setFillColor(QColor(255, 0, 0, 50))
self.r.setWidth(2)
self.r.setZValue(9)
QTimer.singleShot(4000, self.hide_marker_feature)
def hide_marker_feature(self):
opacity = self.r.opacity()
if opacity > 0.:
# produce a fade out effect
opacity -= 0.1
self.r.setOpacity(opacity)
QTimer.singleShot(100, self.hide_marker_feature)
else:
iface.mapCanvas().scene().removeItem(self.r)
class NewSessionDialog(ChildDialog):
def __init__(self, parent, duplicate_window=False):
ChildDialog.__init__(self, parent)
self.ui = ui.new_session.Ui_DialogNewSession()
self.ui.setupUi(self)
self._is_duplicate = bool(duplicate_window)
self.ui.currentSessionsFolder.setText(CommandLineArgs.session_root)
self.ui.toolButtonFolder.clicked.connect(self._change_root_folder)
self.ui.buttonBox.button(QDialogButtonBox.Ok).setEnabled(False)
self.ui.lineEdit.setFocus(Qt.OtherFocusReason)
self.ui.lineEdit.textChanged.connect(self._text_changed)
self.session_list = []
self.template_list = []
self.sub_folders = []
self.signaler.server_status_changed.connect(
self._server_status_changed)
self.signaler.add_sessions_to_list.connect(self._add_sessions_to_list)
self.signaler.session_template_found.connect(
self._add_templates_to_list)
self.signaler.root_changed.connect(self._root_changed)
self.to_daemon('/ray/server/list_sessions', 1)
if self._is_duplicate:
self.ui.labelTemplate.setVisible(False)
self.ui.comboBoxTemplate.setVisible(False)
self.ui.labelOriginalSessionName.setText(
self.session.get_short_path())
self.ui.labelNewSessionName.setText(
_translate('Duplicate', 'Duplicated session name :'))
self.setWindowTitle(_translate('Duplicate', 'Duplicate Session'))
else:
self.ui.frameOriginalSession.setVisible(False)
self.to_daemon('/ray/server/list_session_templates')
if not self.daemon_manager.is_local:
self.ui.toolButtonFolder.setVisible(False)
self.ui.currentSessionsFolder.setVisible(False)
self.ui.labelSessionsFolder.setVisible(False)
self._init_templates_combo_box()
self._set_last_template_selected()
self._server_will_accept = False
self._text_is_valid = False
self._completer = QCompleter(self.sub_folders)
self.ui.lineEdit.setCompleter(self._completer)
self._server_status_changed(self.session.server_status)
self._text_was_empty = True
def _server_status_changed(self, server_status):
self.ui.toolButtonFolder.setEnabled(
bool(server_status == ray.ServerStatus.OFF))
self._server_will_accept = bool(
server_status in (ray.ServerStatus.OFF, ray.ServerStatus.READY)
and not self.server_copying)
if self._is_duplicate:
self._server_will_accept = bool(
server_status == ray.ServerStatus.READY
and not self.server_copying)
if server_status != ray.ServerStatus.OFF:
if self._root_folder_file_dialog is not None:
self._root_folder_file_dialog.reject()
self._root_folder_message_box.reject()
self._prevent_ok()
def _root_changed(self, session_root):
self.ui.currentSessionsFolder.setText(session_root)
self.session_list.clear()
self.sub_folders.clear()
self.to_daemon('/ray/server/list_sessions', 1)
def _init_templates_combo_box(self):
self.ui.comboBoxTemplate.clear()
self.ui.comboBoxTemplate.addItem(
_translate('session_template', "empty"))
self.ui.comboBoxTemplate.addItem(
_translate('session_template', "with JACK patch memory"))
self.ui.comboBoxTemplate.addItem(
_translate('session_template', "with JACK config memory"))
self.ui.comboBoxTemplate.addItem(
_translate('session_template', "with basic scripts"))
misscount = self.ui.comboBoxTemplate.count() \
- 1 - len(ray.FACTORY_SESSION_TEMPLATES)
for i in range(misscount):
self.ui.comboBoxTemplate.addItem(ray.FACTORY_SESSION_TEMPLATES[-i])
self.ui.comboBoxTemplate.insertSeparator(
len(ray.FACTORY_SESSION_TEMPLATES) + 1)
def _set_last_template_selected(self):
last_used_template = RS.settings.value('last_used_template', type=str)
if last_used_template.startswith('///'):
last_factory_template = last_used_template.replace('///', '', 1)
for i in range(len(ray.FACTORY_SESSION_TEMPLATES)):
factory_template = ray.FACTORY_SESSION_TEMPLATES[i]
if factory_template == last_factory_template:
self.ui.comboBoxTemplate.setCurrentIndex(i + 1)
break
else:
if last_used_template in self.template_list:
self.ui.comboBoxTemplate.setCurrentText(last_used_template)
if not last_used_template:
self.ui.comboBoxTemplate.setCurrentIndex(1)
def _set_last_sub_folder_selected(self):
last_subfolder = ''
for sess in self.session.recent_sessions:
if sess.startswith('/'):
continue
if '/' in sess:
last_subfolder, sep, sess_name = sess.rpartition('/')
break
if last_subfolder and not self.ui.lineEdit.text():
self.ui.lineEdit.setText(last_subfolder + '/')
def _add_sessions_to_list(self, session_names):
self.session_list += session_names
for session_name in session_names:
if '/' in session_name:
new_dir = os.path.dirname(session_name)
if not new_dir in self.sub_folders:
self.sub_folders.append(new_dir)
self.sub_folders.sort()
del self._completer
self._completer = QCompleter([f + '/' for f in self.sub_folders])
self.ui.lineEdit.setCompleter(self._completer)
if not session_names:
# all sessions are listed, pre-fill last subfolder
self._set_last_sub_folder_selected()
def _add_templates_to_list(self, template_list):
for template in template_list:
if template not in self.template_list:
self.template_list.append(template)
if not self.template_list:
return
self.template_list.sort()
self._init_templates_combo_box()
for template_name in self.template_list:
self.ui.comboBoxTemplate.addItem(template_name)
self._set_last_template_selected()
def _text_changed(self, text):
self._text_is_valid = bool(text and not text.endswith('/')
and text not in self.session_list)
self._prevent_ok()
if self._text_was_empty:
if text:
self._completer.setCompletionMode(QCompleter.PopupCompletion)
self._completer.complete()
self._text_was_empty = False
elif not text:
QTimer.singleShot(50, self._set_completer_for_empty_text)
self._text_was_empty = True
def _set_completer_for_empty_text(self):
#print('set currow', self._completer.setCurrentIndex(0))
del self._completer
self._completer = QCompleter([f + '/' for f in self.sub_folders])
self._completer.setCompletionMode(QCompleter.UnfilteredPopupCompletion)
self.ui.lineEdit.setCompleter(self._completer)
QTimer.singleShot(50, self._completer.complete)
def _show_completer_at_start(self):
self._completer.complete()
def showEvent(self, event):
ChildDialog.showEvent(self, event)
QTimer.singleShot(800, self._show_completer_at_start)
def _prevent_ok(self):
self.ui.buttonBox.button(QDialogButtonBox.Ok).setEnabled(
bool(self._server_will_accept and self._text_is_valid))
def get_session_short_path(self) -> str:
return self.ui.lineEdit.text()
def get_template_name(self) -> str:
index = self.ui.comboBoxTemplate.currentIndex()
if index == 0:
return ""
if index <= len(ray.FACTORY_SESSION_TEMPLATES):
return '///' + ray.FACTORY_SESSION_TEMPLATES[index - 1]
return self.ui.comboBoxTemplate.currentText()
class TextEditTechnique(QTextEdit):
def __init__(self, text_file, input_trigger=None, active=True):
super(TextEditTechnique, self).__init__()
self._completer = None
self.isActive = active
word_list = self.get_suggestion_words(text_file)
self.input_trigger = input_trigger
# connects the text textChanged event
self.textChanged.connect(self.handle_input)
self.char_length = 1
self.set_completer(word_list)
self.technique_used = False
self.no_suggestion_input = "~!@#$%^&*()_+{}|:\"<>?,./;'[]\\-= "
# gets words for suggestion
def get_suggestion_words(self, text_file):
words = []
file = open(text_file)
for line in file:
for word in line.split(' '):
word = word.strip().lower().replace('.', '').replace(
',', '').replace(':', '').replace('?', '')
if word and word not in words:
words.append(word)
file.close()
return words
# initializes the completer
def set_completer(self, words):
if self._completer is not None:
self._completer.activated.disconnect()
self._completer = QCompleter(words, self)
self._completer.setCaseSensitivity(Qt.CaseInsensitive)
self._completer.setWrapAround(False)
self._completer.setWidget(self)
self._completer.setCompletionMode(QCompleter.PopupCompletion)
self._completer.activated.connect(self.insert_sel_suggestion)
# insert the selected suggestion and moves the text cursor
def insert_sel_suggestion(self, suggestion):
if self._completer.widget() is not self:
return
text_cursor = self.textCursor()
extra = len(suggestion) - len(self._completer.completionPrefix())
text_cursor.movePosition(QTextCursor.Left)
text_cursor.movePosition(QTextCursor.EndOfWord)
text_cursor.insertText(suggestion[-extra:])
self.setTextCursor(text_cursor)
# returns the current typed word
def text_under_cursor(self):
text_cursor = self.textCursor()
text_cursor.select(QTextCursor.WordUnderCursor)
return text_cursor.selectedText()
# sets the widget
def focusInEvent(self, e):
if self._completer is not None and self.isActive:
self._completer.setWidget(self)
super(TextEditTechnique, self).focusInEvent(e)
def keyPressEvent(self, e):
# behaves like a normal input field!
if not self.isActive or self._completer is None:
super(TextEditTechnique, self).keyPressEvent(e)
return
# ignore events funktion keys on Textedit if popup is visible --> popup behaves default
if self._completer.popup().isVisible():
if e.key() in (Qt.Key_Enter, Qt.Key_Return, Qt.Key_Escape,
Qt.Key_Tab, Qt.Key_Backtab):
e.ignore()
self.technique_used = True
return
# writes text in the editfield
super(TextEditTechnique, self).keyPressEvent(e)
ctrl_or_shift = e.modifiers() & (Qt.ControlModifier | Qt.ShiftModifier)
if self._completer is None or (ctrl_or_shift and len(e.text()) == 0):
return
has_modifier = (e.modifiers() != Qt.NoModifier) and not ctrl_or_shift
completion_prefix = self.text_under_cursor()
# hide the popup for no chars, modifiers, shift and no text
if (has_modifier or len(e.text()) == 0
or len(completion_prefix) < self.char_length
or e.text()[-1] in self.no_suggestion_input):
self._completer.popup().hide()
return
# shows the popup with the suggested words
if completion_prefix != self._completer.completionPrefix():
self._completer.setCompletionPrefix(completion_prefix)
self._completer.popup().setCurrentIndex(
self._completer.completionModel().index(0, 0))
cursor = self.cursorRect()
cursor.setWidth(
self._completer.popup().sizeHintForColumn(0) +
self._completer.popup().verticalScrollBar().sizeHint().width())
self._completer.complete(cursor)
# event called if textedit input has changed
def handle_input(self):
timestamp = time.time()
self.input_trigger.emit(self.toPlainText(), timestamp)
# clears the text input
def clear_input(self):
self.setHtml('')
# deactivates the completer
def deactivate_completer(self):
self.isActive = False
# activates the completer
def activate_completer(self):
self.isActive = True
class GuiApplication(QApplication, BaseApplication):
# TODO: figure out how to catch close/delete window from window frame
def __init__(self, *args, **kw):
QApplication.__init__(self, *args, **kw)
BaseApplication.__init__(self)
self.view = qtutils.create_form(
"main.ui",
opengl={"graphicsView": ChimeraGraphics},
connections={
"actionOpen.triggered": self.open,
"actionQuit.triggered": self.quit,
"lineEdit.textChanged": self.save_command,
"lineEdit.returnPressed": self.process_command,
"graphicsViewGL.mousePress": self.mouse_press,
"graphicsViewGL.mouseRelease": self.mouse_release,
"graphicsViewGL.mouseMove": self.mouse_drag,
# TODO: why are't these needed?
#"graphicsViewGL.keyPress": "lineEdit.event",
#"graphicsViewGL.keyRelease": "lineEdit.event",
})
self.view.setWindowTitle(self.applicationName())
self.statusbar = self.find_object("statusbar")
assert self.statusbar is not None
self.graphics = self.find_object("graphicsViewGL")
assert self.graphics is not None
self.graphics.makeCurrent()
self.graphics.setFocusPolicy(Qt.WheelFocus)
self.line_edit = self.find_object("lineEdit")
assert self.line_edit is not None
self.completer = QCompleter(self.line_edit)
self.completer.setModel(QStringListModel(self.completer))
#self.completer.setCompletionMode(QCompleter.PopupCompletion)
self.line_edit.setCompleter(self.completer)
self._mouse_mode = None
self.view.show()
self.cursors = {
# TODO: custom cursors
"pick": Qt.PointingHandCursor,
"vsphere_z": Qt.IBeamCursor,
"vsphere_rot": Qt.ClosedHandCursor,
"translate": Qt.SizeAllCursor,
}
self.timer = QTimer(self.view)
self.active_timer = False
from chimera2.trackchanges import track
from chimera2 import scene
track.add_handler(scene.View, self._update_cb)
def _update_cb(self, *args, **kw):
if self.graphics:
self.graphics.updateGL()
def physicalDotsPerInch(self):
screen = self.primaryScreen()
return screen.physicalDotsPerInch()
def find_object(self, name):
return self.view.findChild(QObject, name)
@pyqtSlot()
def open(self):
# QFileDialog.getOpenFileName(QWidget parent=None, str caption='', str directory='', str filter='', str initialFilter='', QFileDialog.Options options=0) -> (str, str)
from chimera2 import io
filename, filter = QFileDialog.getOpenFileName(
self.view, caption="Open File", filter=io.qt_open_file_filter())
if filename:
from chimera2 import commands
commands.cmd_open(filename)
@property
def mouse_mode(self):
return self._mouse_mode
@mouse_mode.setter
def mouse_mode(self, mode):
if mode == self._mouse_mode:
return
self._mouse_mode = mode
cursor = self.cursors.get(mode, None)
if cursor:
self.graphics.setCursor(cursor)
else:
self.graphics.setCursor(QCursor())
@pyqtSlot(QEvent)
def mouse_press(self, event):
buttons = event.buttons()
x = event.x()
y = event.y()
if buttons & Qt.RightButton:
self.graphics.pick(x, y)
self.mouse_mode = "pick"
elif buttons & Qt.MiddleButton:
self.mouse_mode = "translate"
self.xy = event.globalPos()
elif buttons & Qt.LeftButton:
zrot = self.graphics.vsphere_press(x, y)
if zrot:
self.mouse_mode = "vsphere_z"
else:
self.mouse_mode = "vsphere_rot"
@pyqtSlot(QEvent)
def mouse_release(self, event):
if self.mouse_mode in ("vsphere_z", "vsphere_rot"):
self.graphics.vsphere_release()
self.mouse_mode = None
@pyqtSlot(QEvent)
def mouse_drag(self, event):
if self.mouse_mode in ("vsphere_z", "vsphere_rot"):
x = event.x()
y = event.y()
throttle = event.modifiers() & Qt.ShiftModifier
zrot = self.graphics.vsphere_drag(x, y, throttle)
if zrot:
self.mouse_mode = "vsphere_z"
else:
self.mouse_mode = "vsphere_rot"
elif self.mouse_mode == "translate":
xy = event.globalPos()
delta = xy - self.xy
self.xy = xy
self.graphics.translate_xy(delta)
@pyqtSlot(str)
def save_command(self, text):
self.command.parse_text(text)
self.completer.setCompletionPrefix(self.command.completion_prefix)
self.completer.model().setStringList(self.command.completions)
self.completer.complete()
@pyqtSlot()
def process_command(self, cmd=None):
self.status("")
BaseApplication.process_command(self)
class HelpWebSearchWidget(E5ClearableLineEdit):
"""
Class implementing a web search widget for the web browser.
@signal search(QUrl) emitted when the search should be done
"""
search = pyqtSignal(QUrl)
def __init__(self, parent=None):
"""
Constructor
@param parent reference to the parent widget (QWidget)
"""
super(HelpWebSearchWidget, self).__init__(parent)
from E5Gui.E5LineEdit import E5LineEdit
from E5Gui.E5LineEditButton import E5LineEditButton
from .OpenSearch.OpenSearchManager import OpenSearchManager
self.__mw = parent
self.__openSearchManager = OpenSearchManager(self)
self.__openSearchManager.currentEngineChanged.connect(
self.__currentEngineChanged)
self.__currentEngine = ""
self.__enginesMenu = QMenu(self)
self.__engineButton = E5LineEditButton(self)
self.__engineButton.setMenu(self.__enginesMenu)
self.addWidget(self.__engineButton, E5LineEdit.LeftSide)
self.__searchButton = E5LineEditButton(self)
self.__searchButton.setIcon(UI.PixmapCache.getIcon("webSearch.png"))
self.addWidget(self.__searchButton, E5LineEdit.LeftSide)
self.__model = QStandardItemModel(self)
self.__completer = QCompleter()
self.__completer.setModel(self.__model)
self.__completer.setCompletionMode(
QCompleter.UnfilteredPopupCompletion)
self.__completer.setWidget(self)
self.__searchButton.clicked.connect(self.__searchButtonClicked)
self.textEdited.connect(self.__textEdited)
self.returnPressed.connect(self.__searchNow)
self.__completer.activated[QModelIndex].connect(
self.__completerActivated)
self.__completer.highlighted[QModelIndex].connect(
self.__completerHighlighted)
self.__enginesMenu.aboutToShow.connect(self.__showEnginesMenu)
self.__suggestionsItem = None
self.__suggestions = []
self.__suggestTimer = None
self.__suggestionsEnabled = Preferences.getHelp("WebSearchSuggestions")
self.__recentSearchesItem = None
self.__recentSearches = []
self.__maxSavedSearches = 10
self.__engine = None
self.__loadSearches()
self.__setupCompleterMenu()
self.__currentEngineChanged()
def __searchNow(self):
"""
Private slot to perform the web search.
"""
searchText = self.text()
if not searchText:
return
globalSettings = QWebSettings.globalSettings()
if not globalSettings.testAttribute(
QWebSettings.PrivateBrowsingEnabled):
if searchText in self.__recentSearches:
self.__recentSearches.remove(searchText)
self.__recentSearches.insert(0, searchText)
if len(self.__recentSearches) > self.__maxSavedSearches:
self.__recentSearches = \
self.__recentSearches[:self.__maxSavedSearches]
self.__setupCompleterMenu()
url = self.__openSearchManager.currentEngine().searchUrl(searchText)
self.search.emit(url)
def __setupCompleterMenu(self):
"""
Private method to create the completer menu.
"""
if not self.__suggestions or \
(self.__model.rowCount() > 0 and
self.__model.item(0) != self.__suggestionsItem):
self.__model.clear()
self.__suggestionsItem = None
else:
self.__model.removeRows(1, self.__model.rowCount() - 1)
boldFont = QFont()
boldFont.setBold(True)
if self.__suggestions:
if self.__model.rowCount() == 0:
if not self.__suggestionsItem:
self.__suggestionsItem = QStandardItem(
self.tr("Suggestions"))
self.__suggestionsItem.setFont(boldFont)
self.__model.appendRow(self.__suggestionsItem)
for suggestion in self.__suggestions:
self.__model.appendRow(QStandardItem(suggestion))
if not self.__recentSearches:
self.__recentSearchesItem = QStandardItem(
self.tr("No Recent Searches"))
self.__recentSearchesItem.setFont(boldFont)
self.__model.appendRow(self.__recentSearchesItem)
else:
self.__recentSearchesItem = QStandardItem(
self.tr("Recent Searches"))
self.__recentSearchesItem.setFont(boldFont)
self.__model.appendRow(self.__recentSearchesItem)
for recentSearch in self.__recentSearches:
self.__model.appendRow(QStandardItem(recentSearch))
view = self.__completer.popup()
view.setFixedHeight(view.sizeHintForRow(0) * self.__model.rowCount() +
view.frameWidth() * 2)
self.__searchButton.setEnabled(
bool(self.__recentSearches or self.__suggestions))
def __completerActivated(self, index):
"""
Private slot handling the selection of an entry from the completer.
@param index index of the item (QModelIndex)
"""
if self.__suggestionsItem and \
self.__suggestionsItem.index().row() == index.row():
return
if self.__recentSearchesItem and \
self.__recentSearchesItem.index().row() == index.row():
return
self.__searchNow()
def __completerHighlighted(self, index):
"""
Private slot handling the highlighting of an entry of the completer.
@param index index of the item (QModelIndex)
@return flah indicating a successful highlighting (boolean)
"""
if self.__suggestionsItem and \
self.__suggestionsItem.index().row() == index.row():
return False
if self.__recentSearchesItem and \
self.__recentSearchesItem.index().row() == index.row():
return False
self.setText(index.data())
return True
def __textEdited(self, txt):
"""
Private slot to handle changes of the search text.
@param txt search text (string)
"""
if self.__suggestionsEnabled:
if self.__suggestTimer is None:
self.__suggestTimer = QTimer(self)
self.__suggestTimer.setSingleShot(True)
self.__suggestTimer.setInterval(200)
self.__suggestTimer.timeout.connect(self.__getSuggestions)
self.__suggestTimer.start()
else:
self.__completer.setCompletionPrefix(txt)
self.__completer.complete()
def __getSuggestions(self):
"""
Private slot to get search suggestions from the configured search
engine.
"""
searchText = self.text()
if searchText:
self.__openSearchManager.currentEngine()\
.requestSuggestions(searchText)
def __newSuggestions(self, suggestions):
"""
Private slot to receive a new list of suggestions.
@param suggestions list of suggestions (list of strings)
"""
self.__suggestions = suggestions
self.__setupCompleterMenu()
self.__completer.complete()
def __showEnginesMenu(self):
"""
Private slot to handle the display of the engines menu.
"""
self.__enginesMenu.clear()
from .OpenSearch.OpenSearchEngineAction import OpenSearchEngineAction
engineNames = self.__openSearchManager.allEnginesNames()
for engineName in engineNames:
engine = self.__openSearchManager.engine(engineName)
action = OpenSearchEngineAction(engine, self.__enginesMenu)
action.setData(engineName)
action.triggered.connect(self.__changeCurrentEngine)
self.__enginesMenu.addAction(action)
if self.__openSearchManager.currentEngineName() == engineName:
action.setCheckable(True)
action.setChecked(True)
ct = self.__mw.currentBrowser()
linkedResources = ct.linkedResources("search")
if len(linkedResources) > 0:
self.__enginesMenu.addSeparator()
for linkedResource in linkedResources:
url = QUrl(linkedResource.href)
title = linkedResource.title
mimetype = linkedResource.type_
if mimetype != "application/opensearchdescription+xml":
continue
if url.isEmpty():
continue
if url.isRelative():
url = ct.url().resolved(url)
if not title:
if not ct.title():
title = url.host()
else:
title = ct.title()
action = self.__enginesMenu.addAction(
self.tr("Add '{0}'").format(title),
self.__addEngineFromUrl)
action.setData(url)
action.setIcon(ct.icon())
self.__enginesMenu.addSeparator()
self.__enginesMenu.addAction(self.__mw.searchEnginesAction())
if self.__recentSearches:
self.__enginesMenu.addAction(self.tr("Clear Recent Searches"),
self.clear)
def __changeCurrentEngine(self):
"""
Private slot to handle the selection of a search engine.
"""
action = self.sender()
if action is not None:
name = action.data()
self.__openSearchManager.setCurrentEngineName(name)
def __addEngineFromUrl(self):
"""
Private slot to add a search engine given its URL.
"""
action = self.sender()
if action is not None:
url = action.data()
if not isinstance(url, QUrl):
return
self.__openSearchManager.addEngine(url)
def __searchButtonClicked(self):
"""
Private slot to show the search menu via the search button.
"""
self.__setupCompleterMenu()
self.__completer.complete()
def clear(self):
"""
Public method to clear all private data.
"""
self.__recentSearches = []
self.__setupCompleterMenu()
super(HelpWebSearchWidget, self).clear()
self.clearFocus()
def preferencesChanged(self):
"""
Public method to handle the change of preferences.
"""
self.__suggestionsEnabled = Preferences.getHelp("WebSearchSuggestions")
if not self.__suggestionsEnabled:
self.__suggestions = []
self.__setupCompleterMenu()
def saveSearches(self):
"""
Public method to save the recently performed web searches.
"""
Preferences.Prefs.settings.setValue(
'Help/WebSearches', self.__recentSearches)
def __loadSearches(self):
"""
Private method to load the recently performed web searches.
"""
searches = Preferences.Prefs.settings.value('Help/WebSearches')
if searches is not None:
self.__recentSearches = searches
def openSearchManager(self):
"""
Public method to get a reference to the opensearch manager object.
@return reference to the opensearch manager object (OpenSearchManager)
"""
return self.__openSearchManager
def __currentEngineChanged(self):
"""
Private slot to track a change of the current search engine.
"""
if self.__openSearchManager.engineExists(self.__currentEngine):
oldEngine = self.__openSearchManager.engine(self.__currentEngine)
oldEngine.imageChanged.disconnect(self.__engineImageChanged)
if self.__suggestionsEnabled:
oldEngine.suggestions.disconnect(self.__newSuggestions)
newEngine = self.__openSearchManager.currentEngine()
if newEngine.networkAccessManager() is None:
newEngine.setNetworkAccessManager(self.__mw.networkAccessManager())
newEngine.imageChanged.connect(self.__engineImageChanged)
if self.__suggestionsEnabled:
newEngine.suggestions.connect(self.__newSuggestions)
self.setInactiveText(self.__openSearchManager.currentEngineName())
self.__currentEngine = self.__openSearchManager.currentEngineName()
self.__engineButton.setIcon(QIcon(QPixmap.fromImage(
self.__openSearchManager.currentEngine().image())))
self.__suggestions = []
self.__setupCompleterMenu()
def __engineImageChanged(self):
"""
Private slot to handle a change of the current search engine icon.
"""
self.__engineButton.setIcon(QIcon(QPixmap.fromImage(
self.__openSearchManager.currentEngine().image())))
def mousePressEvent(self, evt):
"""
Protected method called by a mouse press event.
@param evt reference to the mouse event (QMouseEvent)
"""
if evt.button() == Qt.XButton1:
self.__mw.currentBrowser().pageAction(QWebPage.Back).trigger()
elif evt.button() == Qt.XButton2:
self.__mw.currentBrowser().pageAction(QWebPage.Forward).trigger()
else:
super(HelpWebSearchWidget, self).mousePressEvent(evt)
class WebBrowserWebSearchWidget(E5ClearableLineEdit):
"""
Class implementing a web search widget for the web browser.
@signal search(QUrl) emitted when the search should be done
"""
search = pyqtSignal(QUrl)
def __init__(self, mainWindow, parent=None):
"""
Constructor
@param mainWindow reference to the browser main window
@type WebBrowserWindow
@param parent reference to the parent widget
@type QWidget
"""
super(WebBrowserWebSearchWidget, self).__init__(parent)
from E5Gui.E5LineEdit import E5LineEdit
from E5Gui.E5LineEditButton import E5LineEditButton
from .OpenSearch.OpenSearchManager import OpenSearchManager
self.__mw = mainWindow
self.__openSearchManager = OpenSearchManager(self)
self.__openSearchManager.currentEngineChanged.connect(
self.__currentEngineChanged)
self.__currentEngine = ""
self.__enginesMenu = QMenu(self)
self.__enginesMenu.triggered.connect(
self.__handleEnginesMenuActionTriggered)
self.__engineButton = E5LineEditButton(self)
self.__engineButton.setMenu(self.__enginesMenu)
self.addWidget(self.__engineButton, E5LineEdit.LeftSide)
self.__searchButton = E5LineEditButton(self)
self.__searchButton.setIcon(UI.PixmapCache.getIcon("webSearch.png"))
self.addWidget(self.__searchButton, E5LineEdit.LeftSide)
self.__model = QStandardItemModel(self)
self.__completer = QCompleter()
self.__completer.setModel(self.__model)
self.__completer.setCompletionMode(
QCompleter.UnfilteredPopupCompletion)
self.__completer.setWidget(self)
self.__searchButton.clicked.connect(self.__searchButtonClicked)
self.textEdited.connect(self.__textEdited)
self.returnPressed.connect(self.__searchNow)
self.__completer.activated[QModelIndex].connect(
self.__completerActivated)
self.__completer.highlighted[QModelIndex].connect(
self.__completerHighlighted)
self.__enginesMenu.aboutToShow.connect(self.__showEnginesMenu)
self.__suggestionsItem = None
self.__suggestions = []
self.__suggestTimer = None
self.__suggestionsEnabled = Preferences.getWebBrowser(
"WebSearchSuggestions")
self.__recentSearchesItem = None
self.__recentSearches = []
self.__maxSavedSearches = 10
self.__engine = None
self.__loadSearches()
self.__setupCompleterMenu()
self.__currentEngineChanged()
def __searchNow(self):
"""
Private slot to perform the web search.
"""
searchText = self.text()
if not searchText:
return
import WebBrowser.WebBrowserWindow
if WebBrowser.WebBrowserWindow.WebBrowserWindow.isPrivate():
return
if searchText in self.__recentSearches:
self.__recentSearches.remove(searchText)
self.__recentSearches.insert(0, searchText)
if len(self.__recentSearches) > self.__maxSavedSearches:
self.__recentSearches = self.__recentSearches[:self.
__maxSavedSearches]
self.__setupCompleterMenu()
self.__mw.currentBrowser().setFocus()
self.__mw.currentBrowser().load(
self.__openSearchManager.currentEngine().searchUrl(searchText))
def __setupCompleterMenu(self):
"""
Private method to create the completer menu.
"""
if (not self.__suggestions
or (self.__model.rowCount() > 0
and self.__model.item(0) != self.__suggestionsItem)):
self.__model.clear()
self.__suggestionsItem = None
else:
self.__model.removeRows(1, self.__model.rowCount() - 1)
boldFont = QFont()
boldFont.setBold(True)
if self.__suggestions:
if self.__model.rowCount() == 0:
if not self.__suggestionsItem:
self.__suggestionsItem = QStandardItem(
self.tr("Suggestions"))
self.__suggestionsItem.setFont(boldFont)
self.__model.appendRow(self.__suggestionsItem)
for suggestion in self.__suggestions:
self.__model.appendRow(QStandardItem(suggestion))
if not self.__recentSearches:
self.__recentSearchesItem = QStandardItem(
self.tr("No Recent Searches"))
self.__recentSearchesItem.setFont(boldFont)
self.__model.appendRow(self.__recentSearchesItem)
else:
self.__recentSearchesItem = QStandardItem(
self.tr("Recent Searches"))
self.__recentSearchesItem.setFont(boldFont)
self.__model.appendRow(self.__recentSearchesItem)
for recentSearch in self.__recentSearches:
self.__model.appendRow(QStandardItem(recentSearch))
view = self.__completer.popup()
view.setFixedHeight(
view.sizeHintForRow(0) * self.__model.rowCount() +
view.frameWidth() * 2)
self.__searchButton.setEnabled(
bool(self.__recentSearches or self.__suggestions))
def __completerActivated(self, index):
"""
Private slot handling the selection of an entry from the completer.
@param index index of the item (QModelIndex)
"""
if (self.__suggestionsItem
and self.__suggestionsItem.index().row() == index.row()):
return
if (self.__recentSearchesItem
and self.__recentSearchesItem.index().row() == index.row()):
return
self.__searchNow()
def __completerHighlighted(self, index):
"""
Private slot handling the highlighting of an entry of the completer.
@param index index of the item (QModelIndex)
@return flah indicating a successful highlighting (boolean)
"""
if (self.__suggestionsItem
and self.__suggestionsItem.index().row() == index.row()):
return False
if (self.__recentSearchesItem
and self.__recentSearchesItem.index().row() == index.row()):
return False
self.setText(index.data())
return True
def __textEdited(self, txt):
"""
Private slot to handle changes of the search text.
@param txt search text (string)
"""
if self.__suggestionsEnabled:
if self.__suggestTimer is None:
self.__suggestTimer = QTimer(self)
self.__suggestTimer.setSingleShot(True)
self.__suggestTimer.setInterval(200)
self.__suggestTimer.timeout.connect(self.__getSuggestions)
self.__suggestTimer.start()
else:
self.__completer.setCompletionPrefix(txt)
self.__completer.complete()
def __getSuggestions(self):
"""
Private slot to get search suggestions from the configured search
engine.
"""
searchText = self.text()
if searchText:
self.__openSearchManager.currentEngine().requestSuggestions(
searchText)
def __newSuggestions(self, suggestions):
"""
Private slot to receive a new list of suggestions.
@param suggestions list of suggestions (list of strings)
"""
self.__suggestions = suggestions
self.__setupCompleterMenu()
self.__completer.complete()
def __showEnginesMenu(self):
"""
Private slot to handle the display of the engines menu.
"""
self.__enginesMenu.clear()
from .OpenSearch.OpenSearchEngineAction import OpenSearchEngineAction
engineNames = self.__openSearchManager.allEnginesNames()
for engineName in engineNames:
engine = self.__openSearchManager.engine(engineName)
action = OpenSearchEngineAction(engine, self.__enginesMenu)
action.setData(engineName)
self.__enginesMenu.addAction(action)
if self.__openSearchManager.currentEngineName() == engineName:
action.setCheckable(True)
action.setChecked(True)
cb = self.__mw.currentBrowser()
from .Tools import Scripts
script = Scripts.getOpenSearchLinks()
cb.page().runJavaScript(script, WebBrowserPage.SafeJsWorld,
self.__showEnginesMenuCallback)
def __showEnginesMenuCallback(self, res):
"""
Private method handling the open search links callback.
@param res result of the JavaScript
@type list of dict
"""
cb = self.__mw.currentBrowser()
if res:
self.__enginesMenu.addSeparator()
for entry in res:
url = cb.url().resolved(QUrl(entry["url"]))
title = entry["title"]
if url.isEmpty():
continue
if not title:
title = cb.title()
action = self.__enginesMenu.addAction(
self.tr("Add '{0}'").format(title))
action.setData(url)
action.setIcon(cb.icon())
self.__enginesMenu.addSeparator()
self.__enginesMenu.addAction(self.__mw.searchEnginesAction())
if self.__recentSearches:
act = self.__enginesMenu.addAction(
self.tr("Clear Recent Searches"))
act.setData("@@CLEAR@@")
def __handleEnginesMenuActionTriggered(self, action):
"""
Private slot to handle an action of the menu being triggered.
@param action reference to the action that triggered
@type QAction
"""
actData = action.data()
if isinstance(actData, QUrl):
# add search engine
self.__openSearchManager.addEngine(actData)
elif isinstance(actData, str):
# engine name or special action
if actData == "@@CLEAR@@":
self.clear()
else:
self.__openSearchManager.setCurrentEngineName(actData)
def __searchButtonClicked(self):
"""
Private slot to show the search menu via the search button.
"""
self.__setupCompleterMenu()
self.__completer.complete()
def clear(self):
"""
Public method to clear all private data.
"""
self.__recentSearches = []
self.__setupCompleterMenu()
super(WebBrowserWebSearchWidget, self).clear()
self.clearFocus()
def preferencesChanged(self):
"""
Public method to handle the change of preferences.
"""
self.__suggestionsEnabled = Preferences.getWebBrowser(
"WebSearchSuggestions")
if not self.__suggestionsEnabled:
self.__suggestions = []
self.__setupCompleterMenu()
def saveSearches(self):
"""
Public method to save the recently performed web searches.
"""
Preferences.Prefs.settings.setValue('WebBrowser/WebSearches',
self.__recentSearches)
def __loadSearches(self):
"""
Private method to load the recently performed web searches.
"""
searches = Preferences.Prefs.settings.value('WebBrowser/WebSearches')
if searches is not None:
self.__recentSearches = searches
def openSearchManager(self):
"""
Public method to get a reference to the opensearch manager object.
@return reference to the opensearch manager object (OpenSearchManager)
"""
return self.__openSearchManager
def __currentEngineChanged(self):
"""
Private slot to track a change of the current search engine.
"""
if self.__openSearchManager.engineExists(self.__currentEngine):
oldEngine = self.__openSearchManager.engine(self.__currentEngine)
oldEngine.imageChanged.disconnect(self.__engineImageChanged)
if self.__suggestionsEnabled:
oldEngine.suggestions.disconnect(self.__newSuggestions)
newEngine = self.__openSearchManager.currentEngine()
if newEngine.networkAccessManager() is None:
newEngine.setNetworkAccessManager(self.__mw.networkManager())
newEngine.imageChanged.connect(self.__engineImageChanged)
if self.__suggestionsEnabled:
newEngine.suggestions.connect(self.__newSuggestions)
self.setInactiveText(self.__openSearchManager.currentEngineName())
self.__currentEngine = self.__openSearchManager.currentEngineName()
self.__engineButton.setIcon(
QIcon(
QPixmap.fromImage(
self.__openSearchManager.currentEngine().image())))
self.__suggestions = []
self.__setupCompleterMenu()
def __engineImageChanged(self):
"""
Private slot to handle a change of the current search engine icon.
"""
self.__engineButton.setIcon(
QIcon(
QPixmap.fromImage(
self.__openSearchManager.currentEngine().image())))
def mousePressEvent(self, evt):
"""
Protected method called by a mouse press event.
@param evt reference to the mouse event (QMouseEvent)
"""
if evt.button() == Qt.XButton1:
self.__mw.currentBrowser().triggerPageAction(QWebEnginePage.Back)
elif evt.button() == Qt.XButton2:
self.__mw.currentBrowser().triggerPageAction(
QWebEnginePage.Forward)
else:
super(WebBrowserWebSearchWidget, self).mousePressEvent(evt)