def __init__(self, content=None, filename=None, parent=None):
"""
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
# layout
self.editor = CodeEditor("AlternateCSPythonLexer", self)
# Clear QsciScintilla key bindings that may override PyQt's bindings
self.clear_key_binding("Ctrl+/")
self.status = QStatusBar(self)
self.layout = QVBoxLayout()
self.layout.addWidget(self.editor)
self.layout.addWidget(self.status)
self.setLayout(self.layout)
self.layout.setContentsMargins(0, 0, 0, 0)
self._setup_editor(content, filename)
self.setAttribute(Qt.WA_DeleteOnClose, True)
self._presenter = PythonFileInterpreterPresenter(
self, PythonCodeExecution(content))
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
self.find_replace_dialog = None
self.find_replace_dialog_shown = False
def __init__(self, font=None, content=None, filename=None,
parent=None):
"""
:param font: A reference to the font to be used by the editor. If not supplied use the system default
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
self.parent = parent
# layout
font = font if font is not None else QFont()
self.editor = CodeEditor("AlternateCSPython", font, self)
self.find_replace_dialog = None
self.status = QStatusBar(self)
self.layout = QVBoxLayout()
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.addWidget(self.editor)
self.layout.addWidget(self.status)
self.setLayout(self.layout)
self._setup_editor(content, filename)
self._presenter = PythonFileInterpreterPresenter(self, PythonCodeExecution(content))
self.code_commenter = CodeCommenter(self.editor)
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
self.setAttribute(Qt.WA_DeleteOnClose, True)
# Connect the model signals to the view's signals so they can be accessed from outside the MVP
self._presenter.model.sig_exec_progress.connect(self.sig_progress)
self._presenter.model.sig_exec_error.connect(self.sig_exec_error)
self._presenter.model.sig_exec_success.connect(self.sig_exec_success)
def __init__(self,
font=None,
content=None,
filename=None,
parent=None,
completion_enabled=True):
"""
:param font: A reference to the font to be used by the editor. If not supplied use the system default
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
:param completion_enabled: Optional parameter to control code auto-completion suggestions
"""
super(PythonFileInterpreter, self).__init__(parent)
self.parent = parent
self.completion_enabled = completion_enabled
# layout
font = font if font is not None else QFont()
self.editor = CodeEditor("AlternateCSPython", font, self)
self.find_replace_dialog = None
self.status = QStatusBar(self)
self.layout = QVBoxLayout()
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.addWidget(self.editor)
self.layout.addWidget(self.status)
self.setLayout(self.layout)
self._setup_editor(content, filename)
self._presenter = PythonFileInterpreterPresenter(
self, PythonCodeExecution(self.editor))
self.code_commenter = CodeCommenter(self.editor)
if self.completion_enabled:
self.code_completer = CodeCompleter(
self.editor, self._presenter.model.globals_ns)
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
self.setAttribute(Qt.WA_DeleteOnClose, True)
# Connect the model signals to the view's signals so they can be accessed from outside the MVP
self._presenter.model.sig_exec_error.connect(self.sig_exec_error)
self._presenter.model.sig_exec_success.connect(self.sig_exec_success)
if self.completion_enabled:
# Re-populate the completion API after execution success
self._presenter.model.sig_exec_success.connect(
self.code_completer.update_completion_api)
# Only load the simpleapi completions if the code editor starts being modified.
self.sig_editor_modified.connect(
self.code_completer.add_simpleapi_to_completions_if_required)
def setUp(self):
self.lines = [
"# Mantid Repository : https://github.com/mantidproject/mantid",
"# ",
"# Copyright © 2019 ISIS Rutherford Appleton Laboratory UKRI,",
"# NScD Oak Ridge National Laboratory, European Spallation Source",
"# & Institut Laue - Langevin",
"# SPDX - License - Identifier: GPL - 3.0 +",
"# This file is part of the mantidqt package", "", "import numpy",
"# import mantid", "do_something()"
]
self.editor = CodeEditor("AlternateCSPython", QFont())
self.editor.setText('\n'.join(self.lines))
self.commenter = CodeCommenter(self.editor)
def test_construction_raises_error_for_unknown_language(self):
# self.assertRaises causes a segfault here for some reason...
try:
CodeEditor("MyCoolLanguage")
except ValueError:
pass
except Exception as exc:
self.fail("Expected a Value error to be raised but found a " + exc.__name__)
def test_get_selection_for_non_empty_selection(self):
widget = CodeEditor(TEST_LANG)
widget.setText("""first line
second line
third line
fourth line
""")
selected = (0, 2, 3, 4)
widget.setSelection(*selected)
res = widget.getSelection()
self.assertEqual(selected, res)
def __init__(self, content=None, filename=None, parent=None):
"""
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
# layout
self.editor = CodeEditor("AlternateCSPythonLexer", self)
self.status = QStatusBar(self)
layout = QVBoxLayout()
layout.addWidget(self.editor)
layout.addWidget(self.status)
self.setLayout(layout)
layout.setContentsMargins(0, 0, 0, 0)
self._setup_editor(content, filename)
self._presenter = PythonFileInterpreterPresenter(
self, PythonCodeExecution(content))
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
def test_get_selection_for_non_empty_selection(self):
widget = CodeEditor(TEST_LANG)
widget.setText("""first line
second line
third line
fourth line
""")
selected = (0, 2, 3, 4)
widget.setSelection(*selected)
res = widget.getSelection()
self.assertEqual(selected, res)
def __init__(self, content=None, filename=None,
parent=None):
"""
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
# layout
self.editor = CodeEditor("AlternateCSPythonLexer", self)
self.status = QStatusBar(self)
layout = QVBoxLayout()
layout.addWidget(self.editor)
layout.addWidget(self.status)
self.setLayout(layout)
layout.setContentsMargins(0, 0, 0, 0)
self._setup_editor(content, filename)
self._presenter = PythonFileInterpreterPresenter(self,
PythonCodeExecution(content))
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
def test_default_construction_yields_empty_filename(self):
widget = CodeEditor(TEST_LANG)
self.assertEqual("", widget.fileName())
class PythonFileInterpreter(QWidget):
sig_editor_modified = Signal(bool)
sig_filename_modified = Signal(str)
sig_progress = Signal(int)
sig_exec_error = Signal(object)
sig_exec_success = Signal(object)
def __init__(self, font=None, content=None, filename=None,
parent=None):
"""
:param font: A reference to the font to be used by the editor. If not supplied use the system default
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
self.parent = parent
# layout
font = font if font is not None else QFont()
self.editor = CodeEditor("AlternateCSPython", font, self)
self.find_replace_dialog = None
self.status = QStatusBar(self)
self.layout = QVBoxLayout()
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.addWidget(self.editor)
self.layout.addWidget(self.status)
self.setLayout(self.layout)
self._setup_editor(content, filename)
self._presenter = PythonFileInterpreterPresenter(self, PythonCodeExecution(self.editor))
self.code_commenter = CodeCommenter(self.editor)
self.code_completer = CodeCompleter(self.editor, self._presenter.model.globals_ns)
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
self.setAttribute(Qt.WA_DeleteOnClose, True)
# Connect the model signals to the view's signals so they can be accessed from outside the MVP
self._presenter.model.sig_exec_error.connect(self.sig_exec_error)
self._presenter.model.sig_exec_success.connect(self.sig_exec_success)
# Re-populate the completion API after execution success
self._presenter.model.sig_exec_success.connect(self.code_completer.update_completion_api)
def closeEvent(self, event):
self.deleteLater()
if self.find_replace_dialog:
self.find_replace_dialog.close()
super(PythonFileInterpreter, self).closeEvent(event)
def show_find_replace_dialog(self):
if self.find_replace_dialog is None:
self.find_replace_dialog = EmbeddedFindReplaceDialog(self, self.editor)
self.layout.insertWidget(0, self.find_replace_dialog.view)
self.find_replace_dialog.show()
def hide_find_replace_dialog(self):
if self.find_replace_dialog is not None:
self.find_replace_dialog.hide()
@property
def filename(self):
return self.editor.fileName()
def confirm_close(self):
"""Confirm the widget can be closed. If the editor contents are modified then
a user can interject and cancel closing.
:return: True if closing was considered successful, false otherwise
"""
return self.save(prompt_for_confirmation=self.parent.confirm_on_save)
def abort(self):
self._presenter.req_abort()
def execute_async(self, ignore_selection=False):
return self._presenter.req_execute_async(ignore_selection)
def execute_async_blocking(self):
self._presenter.req_execute_async_blocking()
def save(self, prompt_for_confirmation=False, force_save=False):
if self.editor.isModified():
io = EditorIO(self.editor)
return io.save_if_required(prompt_for_confirmation, force_save)
else:
return True
def save_as(self):
io = EditorIO(self.editor)
new_filename = io.ask_for_filename()
if new_filename:
return io.write(save_as=new_filename), new_filename
else:
return False, None
def set_editor_readonly(self, ro):
self.editor.setReadOnly(ro)
def set_status_message(self, msg):
self.status.showMessage(msg)
def replace_tabs_with_spaces(self):
self.replace_text(TAB_CHAR, SPACE_CHAR * TAB_WIDTH)
def replace_text(self, match_text, replace_text):
if self.editor.selectedText() == '':
self.editor.selectAll()
new_text = self.editor.selectedText().replace(match_text, replace_text)
self.editor.replaceSelectedText(new_text)
def replace_spaces_with_tabs(self):
self.replace_text(SPACE_CHAR * TAB_WIDTH, TAB_CHAR)
def set_whitespace_visible(self):
self.editor.setEolVisibility(True)
self.editor.setWhitespaceVisibility(CodeEditor.WsVisible)
def set_whitespace_invisible(self):
self.editor.setEolVisibility(False)
self.editor.setWhitespaceVisibility(CodeEditor.WsInvisible)
def toggle_comment(self):
self.code_commenter.toggle_comment()
def _setup_editor(self, default_content, filename):
editor = self.editor
# Clear default QsciScintilla key bindings that we want to allow
# to be users of this class
self.clear_key_binding("Ctrl+/")
# use tabs not spaces for indentation
editor.setIndentationsUseTabs(False)
editor.setTabWidth(TAB_WIDTH)
# show current editing line but in a softer color
editor.setCaretLineBackgroundColor(CURRENTLINE_BKGD_COLOR)
editor.setCaretLineVisible(True)
# set a margin large enough for sensible file sizes < 1000 lines
# and the progress marker
font_metrics = QFontMetrics(self.font())
editor.setMarginWidth(1, font_metrics.averageCharWidth() * 3 + 20)
# fill with content if supplied and set source filename
if default_content is not None:
editor.setText(default_content)
if filename is not None:
editor.setFileName(filename)
# Default content does not count as a modification
editor.setModified(False)
def clear_key_binding(self, key_str):
"""Clear a keyboard shortcut bound to a Scintilla command"""
self.editor.clearKeyBinding(key_str)
class CodeCommenterTest(unittest.TestCase):
def setUp(self):
self.lines = [
"# Mantid Repository : https://github.com/mantidproject/mantid",
"# ",
"# Copyright © 2019 ISIS Rutherford Appleton Laboratory UKRI,",
"# NScD Oak Ridge National Laboratory, European Spallation Source",
"# & Institut Laue - Langevin",
"# SPDX - License - Identifier: GPL - 3.0 +",
"# This file is part of the mantidqt package", "", "import numpy",
"# import mantid", "for ii in range(2):", " do_something()",
"do_something_else()"
]
self.editor = CodeEditor("AlternateCSPython", QFont())
self.editor.setText('\n'.join(self.lines))
self.commenter = CodeCommenter(self.editor)
def test_comment_single_line_no_selection(self):
self.editor.setCursorPosition(8, 1)
self.commenter.toggle_comment()
expected_lines = copy(self.lines)
expected_lines[8] = '# ' + expected_lines[8]
self.assertEqual(self.editor.text(), '\n'.join(expected_lines))
def test_uncomment_with_inline_comment(self):
"""
Check that uncommenting works correctly when there is an inline comment on the line of code that is to be
uncommented.
"""
commented_lines = [
'#do_something() # inline comment',
'#do_something() #inline comment',
'# do_something() # inline comment',
'# do_something() #inline comment',
' #do_something() # inline comment',
' #do_something() #inline comment',
' # do_something() # inline comment',
' # do_something() #inline comment'
]
expected_uncommented_lines = [
'do_something() # inline comment',
'do_something() #inline comment',
'do_something() # inline comment',
'do_something() #inline comment',
' do_something() # inline comment',
' do_something() #inline comment',
' do_something() # inline comment',
' do_something() #inline comment'
]
uncommented_lines = self.commenter._uncomment_lines(commented_lines)
self.assertEqual(expected_uncommented_lines, uncommented_lines)
def test_multiline_uncomment(self):
start_line, end_line = 0, 3
self.editor.setSelection(0, 2, 3, 2)
self.commenter.toggle_comment()
expected_lines = copy(self.lines)
expected_lines[start_line:end_line + 1] = [
line.replace('# ', '') for line in expected_lines[0:end_line + 1]
]
self.assertEqual(self.editor.text(), '\n'.join(expected_lines))
def test_multiline_comment_for_mix_of_commented_and_uncommented_lines(
self):
start_line, end_line = 5, 8
self.editor.setSelection(start_line, 5, end_line, 5)
self.commenter.toggle_comment()
expected_lines = copy(self.lines)
expected_lines[start_line:end_line + 1] = [
'# ' + line for line in expected_lines[start_line:end_line + 1]
]
self.assertEqual(self.editor.text(), '\n'.join(expected_lines))
def test_multiline_comment_uses_top_level_indentation(self):
start_line, end_line = 10, 13
self.editor.setSelection(start_line, 5, end_line, 5)
self.commenter.toggle_comment()
expected_lines = [
"# for ii in range(2):", "# do_something()",
"# do_something_else()"
]
self.assertEqual(self.editor.text().split('\n')[start_line:end_line],
expected_lines)
def test_comment_preserves_indenting_on_single_line(self):
iline = 11
self.editor.setSelection(iline, 5, iline, 6)
self.commenter.toggle_comment()
# check commented at indented position
self.assertEqual(self.editor.text().split('\n')[iline],
" # do_something()")
def test_get_selection_for_empty_selection(self):
widget = CodeEditor(TEST_LANG)
res = widget.getSelection()
self.assertEqual((-1, -1, -1, -1), res)
def test_setReadOnly_to_true_sets_readonly_status(self):
widget = CodeEditor(TEST_LANG)
widget.setReadOnly(True)
self.assertTrue(widget.isReadOnly())
def test_default_construction_yields_editable_widget(self):
widget = CodeEditor(TEST_LANG)
self.assertFalse(widget.isReadOnly())
def test_set_filename_returns_expected_string(self):
widget = CodeEditor(TEST_LANG)
test_filename = "myscript.py"
widget.setFileName(test_filename)
self.assertEqual(test_filename, widget.fileName())
def test_get_selection_for_empty_selection(self):
widget = CodeEditor(TEST_LANG)
res = widget.getSelection()
self.assertEqual((-1, -1, -1, -1), res)
class PythonFileInterpreter(QWidget):
sig_editor_modified = Signal(bool)
sig_filename_modified = Signal(str)
def __init__(self, content=None, filename=None, parent=None):
"""
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
# layout
self.editor = CodeEditor("AlternateCSPythonLexer", self)
# Clear QsciScintilla key bindings that may override PyQt's bindings
self.clear_key_binding("Ctrl+/")
self.status = QStatusBar(self)
self.layout = QVBoxLayout()
self.layout.addWidget(self.editor)
self.layout.addWidget(self.status)
self.setLayout(self.layout)
self.layout.setContentsMargins(0, 0, 0, 0)
self._setup_editor(content, filename)
self.setAttribute(Qt.WA_DeleteOnClose, True)
self._presenter = PythonFileInterpreterPresenter(
self, PythonCodeExecution(content))
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
self.find_replace_dialog = None
self.find_replace_dialog_shown = False
def closeEvent(self, event):
self.deleteLater()
if self.find_replace_dialog:
self.find_replace_dialog.close()
super(PythonFileInterpreter, self).closeEvent(event)
def show_find_replace_dialog(self):
if self.find_replace_dialog is None:
self.find_replace_dialog = EmbeddedFindReplaceDialog(
self, self.editor)
self.layout.insertWidget(0, self.find_replace_dialog.view)
self.find_replace_dialog.show()
def hide_find_replace_dialog(self):
if self.find_replace_dialog is not None:
self.find_replace_dialog.hide()
@property
def filename(self):
return self.editor.fileName()
def confirm_close(self):
"""Confirm the widget can be closed. If the editor contents are modified then
a user can interject and cancel closing.
:return: True if closing was considered successful, false otherwise
"""
return self.save(confirm=True)
def abort(self):
self._presenter.req_abort()
def execute_async(self):
self._presenter.req_execute_async()
def save(self, confirm=False):
if self.editor.isModified():
io = EditorIO(self.editor)
return io.save_if_required(confirm)
else:
return True
def set_editor_readonly(self, ro):
self.editor.setReadOnly(ro)
def set_status_message(self, msg):
self.status.showMessage(msg)
def replace_tabs_with_spaces(self):
self.replace_text(TAB_CHAR, SPACE_CHAR * TAB_WIDTH)
def replace_text(self, match_text, replace_text):
if self.editor.selectedText() == '':
self.editor.selectAll()
new_text = self.editor.selectedText().replace(match_text, replace_text)
self.editor.replaceSelectedText(new_text)
def replace_spaces_with_tabs(self):
self.replace_text(SPACE_CHAR * TAB_WIDTH, TAB_CHAR)
def set_whitespace_visible(self):
self.editor.setWhitespaceVisibility(CodeEditor.WsVisible)
def set_whitespace_invisible(self):
self.editor.setWhitespaceVisibility(CodeEditor.WsInvisible)
def clear_key_binding(self, key_str):
"""Clear a keyboard shortcut bound to a Scintilla command"""
self.editor.clearKeyBinding(key_str)
def toggle_comment(self):
if self.editor.selectedText() == '': # If nothing selected, do nothing
return
# Note selection indices to restore highlighting later
selection_idxs = list(self.editor.getSelection())
# Expand selection from first character on start line to end char on last line
line_end_pos = len(
self.editor.text().split('\n')[selection_idxs[2]].rstrip())
line_selection_idxs = [
selection_idxs[0], 0, selection_idxs[2], line_end_pos
]
self.editor.setSelection(*line_selection_idxs)
selected_lines = self.editor.selectedText().split('\n')
if self._are_comments(selected_lines) is True:
toggled_lines = self._uncomment_lines(selected_lines)
# Track deleted characters to keep highlighting consistent
selection_idxs[1] -= 2
selection_idxs[-1] -= 2
else:
toggled_lines = self._comment_lines(selected_lines)
selection_idxs[1] += 2
selection_idxs[-1] += 2
# Replace lines with commented/uncommented lines
self.editor.replaceSelectedText('\n'.join(toggled_lines))
# Restore highlighting
self.editor.setSelection(*selection_idxs)
def _comment_lines(self, lines):
for i in range(len(lines)):
lines[i] = '# ' + lines[i]
return lines
def _uncomment_lines(self, lines):
for i in range(len(lines)):
uncommented_line = lines[i].replace('# ', '', 1)
if uncommented_line == lines[i]:
uncommented_line = lines[i].replace('#', '', 1)
lines[i] = uncommented_line
return lines
def _are_comments(self, code_lines):
for line in code_lines:
if line.strip():
if not line.strip().startswith('#'):
return False
return True
def _setup_editor(self, default_content, filename):
editor = self.editor
# use tabs not spaces for indentation
editor.setIndentationsUseTabs(False)
editor.setTabWidth(TAB_WIDTH)
# show current editing line but in a softer color
editor.setCaretLineBackgroundColor(CURRENTLINE_BKGD_COLOR)
editor.setCaretLineVisible(True)
# set a margin large enough for sensible file sizes < 1000 lines
# and the progress marker
font_metrics = QFontMetrics(self.font())
editor.setMarginWidth(1, font_metrics.averageCharWidth() * 3 + 20)
# fill with content if supplied and set source filename
if default_content is not None:
editor.setText(default_content)
if filename is not None:
editor.setFileName(filename)
# Default content does not count as a modification
editor.setModified(False)
editor.enableAutoCompletion(CodeEditor.AcsAll)
def test_default_construction_yields_editable_widget(self):
widget = CodeEditor(TEST_LANG)
self.assertFalse(widget.isReadOnly())
class PythonFileInterpreter(QWidget):
sig_editor_modified = Signal(bool)
sig_filename_modified = Signal(str)
def __init__(self, content=None, filename=None, parent=None):
"""
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
# layout
self.editor = CodeEditor("AlternateCSPythonLexer", self)
self.status = QStatusBar(self)
layout = QVBoxLayout()
layout.addWidget(self.editor)
layout.addWidget(self.status)
self.setLayout(layout)
layout.setContentsMargins(0, 0, 0, 0)
self._setup_editor(content, filename)
self._presenter = PythonFileInterpreterPresenter(
self, PythonCodeExecution(content))
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
@property
def filename(self):
return self.editor.fileName()
def confirm_close(self):
"""Confirm the widget can be closed. If the editor contents are modified then
a user can interject and cancel closing.
:return: True if closing was considered successful, false otherwise
"""
return self.save(confirm=True)
def abort(self):
self._presenter.req_abort()
def execute_async(self):
self._presenter.req_execute_async()
def save(self, confirm=False):
if self.editor.isModified():
io = EditorIO(self.editor)
return io.save_if_required(confirm)
else:
return True
def set_editor_readonly(self, ro):
self.editor.setReadOnly(ro)
def set_status_message(self, msg):
self.status.showMessage(msg)
def _setup_editor(self, default_content, filename):
editor = self.editor
# use tabs not spaces for indentation
editor.setIndentationsUseTabs(False)
editor.setTabWidth(TAB_WIDTH)
# show current editing line but in a softer color
editor.setCaretLineBackgroundColor(CURRENTLINE_BKGD_COLOR)
editor.setCaretLineVisible(True)
# set a margin large enough for sensible file sizes < 1000 lines
# and the progress marker
font_metrics = QFontMetrics(self.font())
editor.setMarginWidth(1, font_metrics.averageCharWidth() * 3 + 20)
# fill with content if supplied and set source filename
if default_content is not None:
editor.setText(default_content)
if filename is not None:
editor.setFileName(filename)
# Default content does not count as a modification
editor.setModified(False)
editor.enableAutoCompletion(CodeEditor.AcsAll)
class PythonFileInterpreter(QWidget):
sig_editor_modified = Signal(bool)
sig_filename_modified = Signal(str)
def __init__(self, content=None, filename=None,
parent=None):
"""
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
# layout
self.editor = CodeEditor("AlternateCSPythonLexer", self)
self.status = QStatusBar(self)
layout = QVBoxLayout()
layout.addWidget(self.editor)
layout.addWidget(self.status)
self.setLayout(layout)
layout.setContentsMargins(0, 0, 0, 0)
self._setup_editor(content, filename)
self._presenter = PythonFileInterpreterPresenter(self,
PythonCodeExecution(content))
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
@property
def filename(self):
return self.editor.fileName()
def confirm_close(self):
"""Confirm the widget can be closed. If the editor contents are modified then
a user can interject and cancel closing.
:return: True if closing was considered successful, false otherwise
"""
return self.save(confirm=True)
def abort(self):
self._presenter.req_abort()
def execute_async(self):
self._presenter.req_execute_async()
def save(self, confirm=False):
if self.editor.isModified():
io = EditorIO(self.editor)
return io.save_if_required(confirm)
else:
return True
def set_editor_readonly(self, ro):
self.editor.setReadOnly(ro)
def set_status_message(self, msg):
self.status.showMessage(msg)
def _setup_editor(self, default_content, filename):
editor = self.editor
# use tabs not spaces for indentation
editor.setIndentationsUseTabs(False)
editor.setTabWidth(TAB_WIDTH)
# show current editing line but in a softer color
editor.setCaretLineBackgroundColor(CURRENTLINE_BKGD_COLOR)
editor.setCaretLineVisible(True)
# set a margin large enough for sensible file sizes < 1000 lines
# and the progress marker
font_metrics = QFontMetrics(self.font())
editor.setMarginWidth(1, font_metrics.averageCharWidth() * 3 + 20)
# fill with content if supplied and set source filename
if default_content is not None:
editor.setText(default_content)
if filename is not None:
editor.setFileName(filename)
# Default content does not count as a modification
editor.setModified(False)
editor.enableAutoCompletion(CodeEditor.AcsAll)
def test_set_filename_returns_expected_string(self):
widget = CodeEditor(TEST_LANG)
test_filename = "myscript.py"
widget.setFileName(test_filename)
self.assertEqual(test_filename, widget.fileName())
def test_set_text_can_be_read_again(self):
widget = CodeEditor(TEST_LANG)
code_str = 'print "Hello World!"'
widget.setText(code_str)
self.assertEqual(code_str, widget.text())
def test_set_text_can_be_read_again(self):
widget = CodeEditor(TEST_LANG)
code_str = 'print "Hello World!"'
widget.setText(code_str)
self.assertEqual(code_str, widget.text())
class CodeCommenterTest(unittest.TestCase):
def setUp(self):
self.lines = [
"# Mantid Repository : https://github.com/mantidproject/mantid",
"# ",
"# Copyright © 2019 ISIS Rutherford Appleton Laboratory UKRI,",
"# NScD Oak Ridge National Laboratory, European Spallation Source",
"# & Institut Laue - Langevin",
"# SPDX - License - Identifier: GPL - 3.0 +",
"# This file is part of the mantidqt package", "", "import numpy",
"# import mantid", "do_something()"
]
self.editor = CodeEditor("AlternateCSPython", QFont())
self.editor.setText('\n'.join(self.lines))
self.commenter = CodeCommenter(self.editor)
def test_comment_single_line_no_selection(self):
self.editor.setCursorPosition(8, 1)
self.commenter.toggle_comment()
expected_lines = copy(self.lines)
expected_lines[8] = '# ' + expected_lines[8]
self.assertEqual(self.editor.text(), '\n'.join(expected_lines))
def test_multiline_uncomment(self):
start_line, end_line = 0, 3
self.editor.setSelection(0, 2, 3, 2)
self.commenter.toggle_comment()
expected_lines = copy(self.lines)
expected_lines[start_line:end_line + 1] = [
line.replace('# ', '') for line in expected_lines[0:end_line + 1]
]
self.assertEqual(self.editor.text(), '\n'.join(expected_lines))
def test_multiline_comment(self):
start_line, end_line = 5, 8
self.editor.setSelection(start_line, 5, end_line, 5)
self.commenter.toggle_comment()
expected_lines = copy(self.lines)
expected_lines[start_line:end_line + 1] = [
'# ' + line for line in expected_lines[start_line:end_line + 1]
]
self.assertEqual(self.editor.text(), '\n'.join(expected_lines))
def test_setReadOnly_to_true_sets_readonly_status(self):
widget = CodeEditor(TEST_LANG)
widget.setReadOnly(True)
self.assertTrue(widget.isReadOnly())
def test_construction_accepts_Python_as_language(self):
CodeEditor(TEST_LANG)
def test_default_construction_yields_empty_filename(self):
widget = CodeEditor(TEST_LANG)
self.assertEqual("", widget.fileName())
class PythonFileInterpreter(QWidget):
sig_editor_modified = Signal(bool)
sig_filename_modified = Signal(str)
sig_progress = Signal(int)
sig_exec_error = Signal(object)
sig_exec_success = Signal(object)
def __init__(self, font=None, content=None, filename=None,
parent=None):
"""
:param font: A reference to the font to be used by the editor. If not supplied use the system default
:param content: An optional string of content to pass to the editor
:param filename: The file path where the content was read.
:param parent: An optional parent QWidget
"""
super(PythonFileInterpreter, self).__init__(parent)
self.parent = parent
# layout
font = font if font is not None else QFont()
self.editor = CodeEditor("AlternateCSPython", font, self)
self.find_replace_dialog = None
self.status = QStatusBar(self)
self.layout = QVBoxLayout()
self.layout.setContentsMargins(0, 0, 0, 0)
self.layout.addWidget(self.editor)
self.layout.addWidget(self.status)
self.setLayout(self.layout)
self._setup_editor(content, filename)
self._presenter = PythonFileInterpreterPresenter(self, PythonCodeExecution(content))
self.code_commenter = CodeCommenter(self.editor)
self.editor.modificationChanged.connect(self.sig_editor_modified)
self.editor.fileNameChanged.connect(self.sig_filename_modified)
self.setAttribute(Qt.WA_DeleteOnClose, True)
# Connect the model signals to the view's signals so they can be accessed from outside the MVP
self._presenter.model.sig_exec_progress.connect(self.sig_progress)
self._presenter.model.sig_exec_error.connect(self.sig_exec_error)
self._presenter.model.sig_exec_success.connect(self.sig_exec_success)
def closeEvent(self, event):
self.deleteLater()
if self.find_replace_dialog:
self.find_replace_dialog.close()
super(PythonFileInterpreter, self).closeEvent(event)
def show_find_replace_dialog(self):
if self.find_replace_dialog is None:
self.find_replace_dialog = EmbeddedFindReplaceDialog(self, self.editor)
self.layout.insertWidget(0, self.find_replace_dialog.view)
self.find_replace_dialog.show()
def hide_find_replace_dialog(self):
if self.find_replace_dialog is not None:
self.find_replace_dialog.hide()
@property
def filename(self):
return self.editor.fileName()
def confirm_close(self):
"""Confirm the widget can be closed. If the editor contents are modified then
a user can interject and cancel closing.
:return: True if closing was considered successful, false otherwise
"""
return self.save(prompt_for_confirmation=self.parent.confirm_on_save)
def abort(self):
self._presenter.req_abort()
def execute_async(self, ignore_selection=False):
return self._presenter.req_execute_async(ignore_selection)
def execute_async_blocking(self):
self._presenter.req_execute_async_blocking()
def save(self, prompt_for_confirmation=False, force_save=False):
if self.editor.isModified():
io = EditorIO(self.editor)
return io.save_if_required(prompt_for_confirmation, force_save)
else:
return True
def save_as(self):
io = EditorIO(self.editor)
new_filename = io.ask_for_filename()
if new_filename:
return io.write(save_as=new_filename), new_filename
else:
return False, None
def set_editor_readonly(self, ro):
self.editor.setReadOnly(ro)
def set_status_message(self, msg):
self.status.showMessage(msg)
def replace_tabs_with_spaces(self):
self.replace_text(TAB_CHAR, SPACE_CHAR * TAB_WIDTH)
def replace_text(self, match_text, replace_text):
if self.editor.selectedText() == '':
self.editor.selectAll()
new_text = self.editor.selectedText().replace(match_text, replace_text)
self.editor.replaceSelectedText(new_text)
def replace_spaces_with_tabs(self):
self.replace_text(SPACE_CHAR * TAB_WIDTH, TAB_CHAR)
def set_whitespace_visible(self):
self.editor.setWhitespaceVisibility(CodeEditor.WsVisible)
def set_whitespace_invisible(self):
self.editor.setWhitespaceVisibility(CodeEditor.WsInvisible)
def toggle_comment(self):
self.code_commenter.toggle_comment()
def _setup_editor(self, default_content, filename):
editor = self.editor
# Clear default QsciScintilla key bindings that we want to allow
# to be users of this class
self.clear_key_binding("Ctrl+/")
# use tabs not spaces for indentation
editor.setIndentationsUseTabs(False)
editor.setTabWidth(TAB_WIDTH)
# show current editing line but in a softer color
editor.setCaretLineBackgroundColor(CURRENTLINE_BKGD_COLOR)
editor.setCaretLineVisible(True)
# set a margin large enough for sensible file sizes < 1000 lines
# and the progress marker
font_metrics = QFontMetrics(self.font())
editor.setMarginWidth(1, font_metrics.averageCharWidth() * 3 + 20)
# fill with content if supplied and set source filename
if default_content is not None:
editor.setText(default_content)
if filename is not None:
editor.setFileName(filename)
# Default content does not count as a modification
editor.setModified(False)
editor.enableAutoCompletion(CodeEditor.AcsAll)
def clear_key_binding(self, key_str):
"""Clear a keyboard shortcut bound to a Scintilla command"""
self.editor.clearKeyBinding(key_str)
