MainController.applyFilters() - Code Metrics - Inspection of "add forgoten files" - QTodoTxt/QTodoTxt2 - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — qml ( 80840b...6787ae )

by Olivier

created 2017-05-02 15:58 UTC

MainController.applyFilters() B

↳ Parent: Project

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
cc	5
dl	0
loc	14
rs	8.5454
c	1
b	0
f	1

import logging
import os
import string

from PyQt5 import QtCore

from qtodotxt.lib import tasklib
from qtodotxt.lib.file import File

from qtodotxt.filters_tree_controller import FiltersTreeController
from qtodotxt.lib.filters import SimpleTextFilter, FutureFilter, IncompleteTasksFilter, CompleteTasksFilter

logger = logging.getLogger(__name__)


class MainController(QtCore.QObject):

    error = QtCore.pyqtSignal(str, arguments=["msg"])
    fileExternallyModified = QtCore.pyqtSignal()

    def __init__(self, args):
        super(MainController, self).__init__()
        self._args = args
        self._filteredTasks = []
        # use object variable for setting only used in this class
        # others are accessed through QSettings
        self._settings = QtCore.QSettings()
        self._showCompleted = self._settings.value("show_completed", False)
        self._showFuture = self._settings.value("show_completed", True)
        self._file = File()
        self._file.fileModified.connect(self.fileExternallyModified)
        self._modified = False
        self._filters_tree_controller = FiltersTreeController()
        self._title = "QTodoTxt"
        self._recentFiles = self._settings.value("recent_files", [])
        self._searchText = ""
        self._currentFilters = []
        # self._currentFilters = self._settings.value("current_filters", ["All"])  # move to QML
        self._updateCompletionStrings()

    def _taskModified(self, task):
        self.setModified()
        self.auto_save()
        if not task.text:
            self.deleteTask(task)
            return
        self.applyFilters()

    def showError(self, msg):
        logger.debug("ERROR: %s", msg)
        self.error.emit(msg)

    completionChanged = QtCore.pyqtSignal()

    @QtCore.pyqtProperty('QStringList', notify=completionChanged)
    def completionStrings(self):
        return self._completionStrings

    def _updateCompletionStrings(self):
        contexts = ['@' + name for name in self._file.getAllContexts()]
        projects = ['+' + name for name in self._file.getAllProjects()]
        lowest_priority = self._settings.value("lowest_priority", "D")
        idx = string.ascii_uppercase.index(lowest_priority) + 1
        priorities = ['(' + val + ')' for val in string.ascii_uppercase[:idx]]
        self._completionStrings = contexts + projects + priorities + ['due:']
        self.completionChanged.emit()

    @QtCore.pyqtSlot('QModelIndexList')
    def filterByIndexes(self, idxs):
        filters = [self._filters_tree_controller.model.itemFromIndex(idx).filter for idx in idxs]
        self.setFilters(filters)

    def setFilters(self, filters):
        self._currentFilters = filters
        self.applyFilters()

    @QtCore.pyqtSlot('QString', 'int', result='int')
    def newTask(self, text='', after=None):
        task = tasklib.Task(text)
        if bool(self._settings.value("Preferences/add_creation_date", False, type=bool)):
            task.addCreationDate()
        task.modified.connect(self._taskModified)
        if after is None:
            after = len(self._filteredTasks) - 1
        self._file.tasks.append(task)
        self._filteredTasks.insert(after + 1, task)  # force the new task to be visible
        self.setModified()
        self.auto_save()
        self.filteredTasksChanged.emit()
        return after + 1

    @QtCore.pyqtSlot('QVariant')
    def deleteTask(self, task):
        if not isinstance(task, tasklib.Task):
            # if task is not a task assume it is an int
            task = self.filteredTasks[task]
        self._file.tasks.remove(task)
        self.setModified()
        self.auto_save()
        self.applyFilters()  # update filtered list for UI

    @property
    def allTasks(self):
        return self._file.tasks

    @allTasks.setter
    def allTasks(self, tasks):
        self._file.tasks = tasks

    filteredTasksChanged = QtCore.pyqtSignal()

    @QtCore.pyqtProperty('QVariant', notify=filteredTasksChanged)
    def filteredTasks(self):
        return self._filteredTasks

    showFutureChanged = QtCore.pyqtSignal('bool')

    @QtCore.pyqtProperty('bool', notify=showFutureChanged)
    def showFuture(self):
        return self._showFuture

    @showFuture.setter
    def showFuture(self, val):
        self._showFuture = val
        self.showFutureChanged.emit(val)
        self.applyFilters()

    searchTextChanged = QtCore.pyqtSignal(str)

    @QtCore.pyqtProperty('QString', notify=searchTextChanged)
    def searchText(self):
        return self._searchText

    @searchText.setter
    def searchText(self, txt):
        self._searchText = txt
        self.applyFilters()
        self.searchTextChanged.emit(txt)

    showCompletedChanged = QtCore.pyqtSignal('bool')

    @QtCore.pyqtProperty('bool', notify=showCompletedChanged)
    def showCompleted(self):
        return self._showCompleted

    @showCompleted.setter
    def showCompleted(self, val):
        self._showCompleted = val
        self.showCompletedChanged.emit(val)
        self.applyFilters()

    def auto_save(self):
        if bool(self._settings.value("Preferences/auto_save", True, type=bool)):
            self.save()

    def start(self):
        if self._args.file:
            filename = self._args.file
        else:
            filename = self._settings.value("last_open_file")

        if filename:
            try:
                self.open(filename)
            except OSError as ex:
                self.showError(str(ex))

        self.applyFilters()
        self._updateTitle()

    filtersUpdated = QtCore.pyqtSignal()

    @QtCore.pyqtProperty('QVariant', notify=filtersUpdated)
    def filtersModel(self):
        return self._filters_tree_controller.model

    def _updateFilterTree(self):
        self._filters_tree_controller.showFilters(self._file)
        self.filtersUpdated.emit()

    def applyFilters(self):
        # First we filter with filters tree
        tasks = tasklib.filterTasks(self._currentFilters, self._file.tasks)
        # Then with our search text
        if self._searchText:
            tasks = tasklib.filterTasks([SimpleTextFilter(self._searchText)], tasks)
        # with future filter if needed
        if not self._showFuture:
            tasks = tasklib.filterTasks([FutureFilter()], tasks)
        # with complete filter if needed
        if not self._showCompleted and not CompleteTasksFilter() in self._currentFilters:
            tasks = tasklib.filterTasks([IncompleteTasksFilter()], tasks)
        self._filteredTasks = tasks
        self.filteredTasksChanged.emit()

    @QtCore.pyqtSlot()
    def archiveCompletedTasks(self):
        done = [task for task in self._file.tasks if task.is_complete]
        for task in done:
            self._file.saveDoneTask(task)
            self._file.tasks.remove(task)
        self.applyFilters()
        self.setModified()
        self.auto_save()

    modifiedChanged = QtCore.pyqtSignal(bool)

    @QtCore.pyqtProperty('bool', notify=modifiedChanged)
    def modified(self):
        return self._modified

    def setModified(self, val=True):
        self._modified = val
        self._updateTitle()
        if val:
            self._updateCompletionStrings()
            self._updateFilterTree()
        self.modifiedChanged.emit(val)

    @QtCore.pyqtSlot("QUrl")
    @QtCore.pyqtSlot()
    def save(self, path=None):
        if not path:
            path = self._file.filename
        elif isinstance(path, QtCore.QUrl):
            path = path.toLocalFile()
        self._file.filename = path

        logger.debug('MainController, saving file: %s.', path)
        try:
            self._file.save(path)
        except OSError as ex:
            logger.exception("Error saving file %s", path)
            self.showError(ex)
            return
        self._settings.setValue("last_open_file", path)
        self._settings.sync()
        self.setModified(False)

    def _updateTitle(self):
        title = 'QTodoTxt - '
        if self._file.filename:
            filename = os.path.basename(self._file.filename)
            title += filename
        else:
            title += 'Untitled'
        if self._modified:
            title += ' (*)'
        self._title = title
        self.titleChanged.emit(self._title)

    titleChanged = QtCore.pyqtSignal(str)

    @QtCore.pyqtProperty('QString', notify=titleChanged)
    def title(self):
        return self._title

    @QtCore.pyqtSlot(result='bool')
    def canExit(self):
        self.auto_save()
        return not self._modified

    def new(self):
        if self.canExit():
            self._file = File()
            self._loadFileToUI()

    @QtCore.pyqtSlot()
    def reload(self):
        self.open(self._file.filename)

    @QtCore.pyqtSlot('QUrl')
    @QtCore.pyqtSlot('QString')
    def open(self, filename):
        if isinstance(filename, QtCore.QUrl):
            filename = filename.toLocalFile()
        logger.debug('MainController.open called with filename="%s"', filename)
        try:
            self._file.load(filename)
        except Exception as ex:
            self.showError(self.tr("Error opening file: {}.\n Exception:{}").format(filename, ex))
            return
        self._loadFileToUI()
        self._settings.setValue("last_open_file", filename)
        for task in self._file.tasks:
            task.modified.connect(self._taskModified)
        self.applyFilters()
        self.updateRecentFile()

    recentFilesChanged = QtCore.pyqtSignal()

    @QtCore.pyqtProperty('QVariant', notify=recentFilesChanged)
    def recentFiles(self):
        return self._recentFiles

    def updateRecentFile(self):
        if self._file.filename in self._recentFiles:
            self._recentFiles.remove(self._file.filename)
        self._recentFiles.insert(0, self._file.filename)
        self._recentFiles = self._recentFiles[:int(self._settings.value("max_recent_files", 6))]
        self._settings.setValue("recent_files", self._recentFiles)
        self.recentFilesChanged.emit()

    def _loadFileToUI(self):
        self.setModified(False)
        self.applyFilters()
        self._updateCompletionStrings()
        self._updateFilterTree()


1			import logging
2			import os
3			import string
4
5			from PyQt5 import QtCore
6
7			from qtodotxt.lib import tasklib
8			from qtodotxt.lib.file import File
9
10			from qtodotxt.filters_tree_controller import FiltersTreeController
11			from qtodotxt.lib.filters import SimpleTextFilter, FutureFilter, IncompleteTasksFilter, CompleteTasksFilter
12
13			logger = logging.getLogger(__name__)
14
15
16			class MainController(QtCore.QObject):
17
18			error = QtCore.pyqtSignal(str, arguments=["msg"])
19			fileExternallyModified = QtCore.pyqtSignal()
20
21			def __init__(self, args):
22			super(MainController, self).__init__()
23			self._args = args
24			self._filteredTasks = []
25			# use object variable for setting only used in this class
26			# others are accessed through QSettings
27			self._settings = QtCore.QSettings()
28			self._showCompleted = self._settings.value("show_completed", False)
29			self._showFuture = self._settings.value("show_completed", True)
30			self._file = File()
31			self._file.fileModified.connect(self.fileExternallyModified)
32			self._modified = False
33			self._filters_tree_controller = FiltersTreeController()
34			self._title = "QTodoTxt"
35			self._recentFiles = self._settings.value("recent_files", [])
36			self._searchText = ""
37			self._currentFilters = []
38			# self._currentFilters = self._settings.value("current_filters", ["All"]) # move to QML
39			self._updateCompletionStrings()
40
41			def _taskModified(self, task):
42			self.setModified()
43			self.auto_save()
44			if not task.text:
45			self.deleteTask(task)
46			return
47			self.applyFilters()
48
49			def showError(self, msg):
50			logger.debug("ERROR: %s", msg)
51			self.error.emit(msg)
52
53			completionChanged = QtCore.pyqtSignal()
54
55			@QtCore.pyqtProperty('QStringList', notify=completionChanged)
56			def completionStrings(self):
57			return self._completionStrings
58
59			def _updateCompletionStrings(self):
60			contexts = ['@' + name for name in self._file.getAllContexts()]
61			projects = ['+' + name for name in self._file.getAllProjects()]
62			lowest_priority = self._settings.value("lowest_priority", "D")
63			idx = string.ascii_uppercase.index(lowest_priority) + 1
64			priorities = ['(' + val + ')' for val in string.ascii_uppercase[:idx]]
65			self._completionStrings = contexts + projects + priorities + ['due:']
66			self.completionChanged.emit()
67
68			@QtCore.pyqtSlot('QModelIndexList')
69			def filterByIndexes(self, idxs):
70			filters = [self._filters_tree_controller.model.itemFromIndex(idx).filter for idx in idxs]
71			self.setFilters(filters)
72
73			def setFilters(self, filters):
74			self._currentFilters = filters
75			self.applyFilters()
76
77			@QtCore.pyqtSlot('QString', 'int', result='int')
78			def newTask(self, text='', after=None):
79			task = tasklib.Task(text)
80			if bool(self._settings.value("Preferences/add_creation_date", False, type=bool)):
81			task.addCreationDate()
82			task.modified.connect(self._taskModified)
83			if after is None:
84			after = len(self._filteredTasks) - 1
85			self._file.tasks.append(task)
86			self._filteredTasks.insert(after + 1, task) # force the new task to be visible
87			self.setModified()
88			self.auto_save()
89			self.filteredTasksChanged.emit()
90			return after + 1
91
92			@QtCore.pyqtSlot('QVariant')
93			def deleteTask(self, task):
94			if not isinstance(task, tasklib.Task):
95			# if task is not a task assume it is an int
96			task = self.filteredTasks[task]
97			self._file.tasks.remove(task)
98			self.setModified()
99			self.auto_save()
100			self.applyFilters() # update filtered list for UI
101
102			@property
103			def allTasks(self):
104			return self._file.tasks
105
106			@allTasks.setter
107			def allTasks(self, tasks):
108			self._file.tasks = tasks
109
110			filteredTasksChanged = QtCore.pyqtSignal()
111
112			@QtCore.pyqtProperty('QVariant', notify=filteredTasksChanged)
113			def filteredTasks(self):
114			return self._filteredTasks
115
116			showFutureChanged = QtCore.pyqtSignal('bool')
117
118			@QtCore.pyqtProperty('bool', notify=showFutureChanged)
119			def showFuture(self):
120			return self._showFuture
121
122			@showFuture.setter
123			def showFuture(self, val):
124			self._showFuture = val
125			self.showFutureChanged.emit(val)
126			self.applyFilters()
127
128			searchTextChanged = QtCore.pyqtSignal(str)
129
130			@QtCore.pyqtProperty('QString', notify=searchTextChanged)
131			def searchText(self):
132			return self._searchText
133
134			@searchText.setter
135			def searchText(self, txt):
136			self._searchText = txt
137			self.applyFilters()
138			self.searchTextChanged.emit(txt)
139
140			showCompletedChanged = QtCore.pyqtSignal('bool')
141
142			@QtCore.pyqtProperty('bool', notify=showCompletedChanged)
143			def showCompleted(self):
144			return self._showCompleted
145
146			@showCompleted.setter
147			def showCompleted(self, val):
148			self._showCompleted = val
149			self.showCompletedChanged.emit(val)
150			self.applyFilters()
151
152			def auto_save(self):
153			if bool(self._settings.value("Preferences/auto_save", True, type=bool)):
154			self.save()
155
156			def start(self):
157			if self._args.file:
158			filename = self._args.file
159			else:
160			filename = self._settings.value("last_open_file")
161
162			if filename:
163			try:
164			self.open(filename)
165			except OSError as ex:
166			self.showError(str(ex))
167
168			self.applyFilters()
169			self._updateTitle()
170
171			filtersUpdated = QtCore.pyqtSignal()
172
173			@QtCore.pyqtProperty('QVariant', notify=filtersUpdated)
174			def filtersModel(self):
175			return self._filters_tree_controller.model
176
177			def _updateFilterTree(self):
178			self._filters_tree_controller.showFilters(self._file)
179			self.filtersUpdated.emit()
180
181			def applyFilters(self):
182			# First we filter with filters tree
183			tasks = tasklib.filterTasks(self._currentFilters, self._file.tasks)
184			# Then with our search text
185			if self._searchText:
186			tasks = tasklib.filterTasks([SimpleTextFilter(self._searchText)], tasks)
187			# with future filter if needed
188			if not self._showFuture:
189			tasks = tasklib.filterTasks([FutureFilter()], tasks)
190			# with complete filter if needed
191			if not self._showCompleted and not CompleteTasksFilter() in self._currentFilters:
192			tasks = tasklib.filterTasks([IncompleteTasksFilter()], tasks)
193			self._filteredTasks = tasks
194			self.filteredTasksChanged.emit()
195
196			@QtCore.pyqtSlot()
197			def archiveCompletedTasks(self):
198			done = [task for task in self._file.tasks if task.is_complete]
199			for task in done:
200			self._file.saveDoneTask(task)
201			self._file.tasks.remove(task)
202			self.applyFilters()
203			self.setModified()
204			self.auto_save()
205
206			modifiedChanged = QtCore.pyqtSignal(bool)
207
208			@QtCore.pyqtProperty('bool', notify=modifiedChanged)
209			def modified(self):
210			return self._modified
211
212			def setModified(self, val=True):
213			self._modified = val
214			self._updateTitle()
215			if val:
216			self._updateCompletionStrings()
217			self._updateFilterTree()
218			self.modifiedChanged.emit(val)
219
220			@QtCore.pyqtSlot("QUrl")
221			@QtCore.pyqtSlot()
222			def save(self, path=None):
223			if not path:
224			path = self._file.filename
225			elif isinstance(path, QtCore.QUrl):
226			path = path.toLocalFile()
227			self._file.filename = path
228
229			logger.debug('MainController, saving file: %s.', path)
230			try:
231			self._file.save(path)
232			except OSError as ex:
233			logger.exception("Error saving file %s", path)
234			self.showError(ex)
235			return
236			self._settings.setValue("last_open_file", path)
237			self._settings.sync()
238			self.setModified(False)
239
240			def _updateTitle(self):
241			title = 'QTodoTxt - '
242			if self._file.filename:
243			filename = os.path.basename(self._file.filename)
244			title += filename
245			else:
246			title += 'Untitled'
247			if self._modified:
248			title += ' (*)'
249			self._title = title
250			self.titleChanged.emit(self._title)
251
252			titleChanged = QtCore.pyqtSignal(str)
253
254			@QtCore.pyqtProperty('QString', notify=titleChanged)
255			def title(self):
256			return self._title
257
258			@QtCore.pyqtSlot(result='bool')
259			def canExit(self):
260			self.auto_save()
261			return not self._modified
262
263			def new(self):
264			if self.canExit():
265			self._file = File()
266			self._loadFileToUI()
267
268			@QtCore.pyqtSlot()
269			def reload(self):
270			self.open(self._file.filename)
271
272			@QtCore.pyqtSlot('QUrl')
273			@QtCore.pyqtSlot('QString')
274			def open(self, filename):
275			if isinstance(filename, QtCore.QUrl):
276			filename = filename.toLocalFile()
277			logger.debug('MainController.open called with filename="%s"', filename)
278			try:
279			self._file.load(filename)
280			except Exception as ex:
281			self.showError(self.tr("Error opening file: {}.\n Exception:{}").format(filename, ex))
282			return
283			self._loadFileToUI()
284			self._settings.setValue("last_open_file", filename)
285			for task in self._file.tasks:
286			task.modified.connect(self._taskModified)
287			self.applyFilters()
288			self.updateRecentFile()
289
290			recentFilesChanged = QtCore.pyqtSignal()
291
292			@QtCore.pyqtProperty('QVariant', notify=recentFilesChanged)
293			def recentFiles(self):
294			return self._recentFiles
295
296			def updateRecentFile(self):
297			if self._file.filename in self._recentFiles:
298			self._recentFiles.remove(self._file.filename)
299			self._recentFiles.insert(0, self._file.filename)
300			self._recentFiles = self._recentFiles[:int(self._settings.value("max_recent_files", 6))]
301			self._settings.setValue("recent_files", self._recentFiles)
302			self.recentFilesChanged.emit()
303
304			def _loadFileToUI(self):
305			self.setModified(False)
306			self.applyFilters()
307			self._updateCompletionStrings()
308			self._updateFilterTree()
309

QTodoTxt / QTodoTxt2

Push — qml ( 80840b...6787ae )

MainController.applyFilters() B

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Duplication

Importance

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