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CodeEditor.py
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CodeEditor.py
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import os.path
import FreeCAD
from PySide import QtCore
from PySide.QtCore import QSize, QRect, Qt, QRegExp
from PySide.QtGui import QPainter, QSyntaxHighlighter, QTextCharFormat, QFont, QColor, QTextCursor, QPlainTextEdit, QTextEdit, QWidget
from FinderOverlay import FinderOverlay
import CQGui.Command
class LineNumberArea(QWidget):
def __init__(self, parent):
QWidget.__init__(self, parent)
self.codeEditor = parent
def sizeHint(self):
return QSize(self.codeEditor.lineNumberAreaWidth(),0)
def paintEvent(self,event):
self.codeEditor.lineNumberAreaPaintEvent(event)
class CodeEditor(QPlainTextEdit):
def __init__(self):
# super(CodeEditor, self).__init__()
QPlainTextEdit.__init__(self)
self.lineNumberArea = LineNumberArea(self)
self.setTabStopWidth(20)
self.blockCountChanged.connect(self.updateLineNumberAreaWidth)
self.updateRequest.connect(self.updateLineNumberArea)
self.cursorPositionChanged.connect(self.highlightCurrentLine)
self.updateLineNumberAreaWidth(0)
self.highlightCurrentLine()
self.highlighter = PythonHighlighter(self.document())
self.dirty = False
# Determine if the line number area needs to be shown or not
lineNumbersCheckedState = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/cadquery-freecad-module").GetBool("showLineNumbers")
if lineNumbersCheckedState:
self.showLineNumberArea()
else:
self.hideLineNumberArea()
# self.overlay = FinderOverlay(self)
# self.overlay.hide()
self.initUI()
def hideLineNumberArea(self):
"""
Hides this editor's line number area.
:return: None
"""
self.lineNumberArea.setVisible(False)
def showLineNumberArea(self):
"""
Shows this editor's line number area.
:return: None
"""
self.lineNumberArea.setVisible(True)
def lineNumberAreaPaintEvent(self, event):
painter = QPainter(self.lineNumberArea)
painter.fillRect(event.rect(), Qt.lightGray)
block = self.firstVisibleBlock()
blockNumber = block.blockNumber()
top = self.blockBoundingGeometry(block).translated(self.contentOffset()).top()
bottom = top + self.blockBoundingRect(block).height()
while (block.isValid() and top <= event.rect().bottom()):
if (block.isValid and bottom >= event.rect().top()):
number = str(blockNumber + 1)
painter.setPen(QtCore.Qt.black)
painter.drawText(0, top, self.lineNumberArea.width(),
self.fontMetrics().height(),
QtCore.Qt.AlignCenter, number)
block = block.next()
top = bottom
bottom = top + self.blockBoundingRect(block).height()
blockNumber += 1
def lineNumberAreaWidth(self):
digits = 1
dMax = max(1, self.blockCount())
while (dMax >= 10):
dMax /= 10
digits += 1
return 3 + self.fontMetrics().width('9') * digits
def resizeEvent(self, event):
QPlainTextEdit.resizeEvent(self, event)
cr = self.contentsRect()
self.lineNumberArea.setGeometry(
QRect(cr.left(), cr.top(), self.lineNumberAreaWidth(),
cr.height()))
# Loads the text of a script into the code editor
def open(self, filename):
self.file_path = filename
with open(filename) as f: self.file_contents = f.read()
self.setPlainText(self.file_contents)
self.parent_dir = os.path.abspath(os.path.join(self.file_path, os.pardir))
# Watch the file we've opened
self.fileSysWatcher = QtCore.QFileSystemWatcher()
self.fileSysWatcher.addPath(self.parent_dir)
QtCore.QObject.connect(self.fileSysWatcher, QtCore.SIGNAL("directoryChanged(QString)"), self, QtCore.SLOT("slotDirChanged(QString)"))
# Reloads the content of the open file if the contents on disk change
def reload(self):
with open(self.file_path) as f: self.file_contents = f.read()
self.setPlainText(self.file_contents)
CQGui.Command.CadQueryExecuteScript().Activated()
# Tells whether or not the contents of the file we're working with has changed
def changedOnDisk(self):
with open(self.file_path) as f: file_contents = f.read()
if file_contents != self.file_contents:
return True
else:
return False
# Saves the text in the code editor to a file
def save(self, filename):
if filename == None:
filename = self.file_path
with open(filename, "w") as code_file:
code_file.write(self.toPlainText())
# Returns the path to the file with its text loaded into the code editor
def get_path(self):
return self.file_path
def is_dirty(self):
return self.dirty
@QtCore.Slot(int)
def updateLineNumberAreaWidth(self, newBlockCount):
self.setViewportMargins(self.lineNumberAreaWidth(), 0, 0, 0)
@QtCore.Slot(QRect, int)
def updateLineNumberArea(self, rect, dy):
if (dy != 0):
self.lineNumberArea.scroll(0, dy)
else:
self.lineNumberArea.update(0, rect.y(),
self.lineNumberArea.width(),
rect.height())
if (rect.contains(self.viewport().rect())):
self.updateLineNumberAreaWidth(0)
@QtCore.Slot()
def highlightCurrentLine(self):
extraSelections = []
if (not self.isReadOnly()):
lineColor = QColor("#E0EEEE")
selection = QTextEdit.ExtraSelection()
selection.format.setBackground(lineColor)
selection.format.setProperty(QTextCharFormat.FullWidthSelection, True)
selection.cursor=self.textCursor()
selection.cursor.clearSelection()
extraSelections.append(selection)
self.setExtraSelections(extraSelections)
@QtCore.Slot("QString")
def slotDirChanged(self, path):
allowReload = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/cadquery-freecad-module").GetBool("allowReload")
# Make sure that the contents of our file actually changed
if self.changedOnDisk() and allowReload:
FreeCAD.Console.PrintMessage("Contents of " + self.file_path + " changed, reloading \r\n")
self.reload()
def keyPressEvent(self,event):
self.dirty = True
customKey=False
#AutoTab
if (event.key()==Qt.Key_Enter or event.key()==16777220):
customKey=True
numTab=0
#new line
newBlock=self.textCursor().block()
currLine=newBlock.text()
tabRE=QRegExp("^[\t]*")
tabRE.indexIn(currLine)
numTab=tabRE.matchedLength()
if (currLine != "" and currLine.strip()[-1] == "{"):
numTab += 1
QPlainTextEdit.keyPressEvent(self,event)
if (numTab > 0):
tCursor=self.textCursor()
for _ in range(0,numTab):
tCursor.insertText("\t")
#automatic close brace
if currLine != "" and currLine.strip()[-1] == "{":
tCursor.insertText("\n")
for _ in range(0,numTab-1):
tCursor.insertText("\t")
tCursor.insertText("}")
tCursor.movePosition(QTextCursor.PreviousBlock)
tCursor.movePosition(QTextCursor.EndOfLine)
self.setTextCursor(tCursor)
if event.key() == Qt.Key_Tab and self.textCursor().hasSelection():
customKey = True
selStart=self.textCursor().selectionStart()
selEnd=self.textCursor().selectionEnd()
cur=self.textCursor()
endBlock=self.document().findBlock(selEnd)
currBlock=self.document().findBlock(selStart)
while currBlock.position()<=endBlock.position():
cur.setPosition(currBlock.position())
cur.insertText("\t")
currBlock=currBlock.next()
if event.key() == Qt.Key_Backtab and self.textCursor().hasSelection():
customKey = True
selStart = self.textCursor().selectionStart()
selEnd = self.textCursor().selectionEnd()
cur = self.textCursor()
endBlock = self.document().findBlock(selEnd)
currBlock = self.document().findBlock(selStart)
while currBlock.position() <= endBlock.position():
cur.setPosition(currBlock.position())
if currBlock.text().left(1) == "\t":
cur.deleteChar()
currBlock=currBlock.next()
# Allow commenting and uncommenting of blocks of code
if event.key() == Qt.Key_Slash and event.modifiers() == Qt.ControlModifier:
customKey = True
selStart = self.textCursor().selectionStart()
selEnd = self.textCursor().selectionEnd()
cur = self.textCursor()
endBlock = self.document().findBlock(selEnd)
currBlock = self.document().findBlock(selStart)
while currBlock.position() <= endBlock.position():
cur.setPosition(currBlock.position())
if currBlock.text()[0] == "#":
cur.deleteChar()
# Make sure we remove extra spaces
while currBlock.text()[0] == " ":
cur.deleteChar()
else:
cur.insertText("# ")
currBlock = currBlock.next()
# Open the text finder
if event.key() == Qt.Key_F and event.modifiers() == Qt.ControlModifier:
customKey = True
print("Opening finder...")
if not customKey:
QPlainTextEdit.keyPressEvent(self, event)
def initUI(self):
pass
# Create the font styles that will highlight the code
keywordFormat = QTextCharFormat()
keywordFormat.setForeground(QColor('blue'))
operatorFormat = QTextCharFormat()
operatorFormat.setForeground(QColor('red'))
braceFormat = QTextCharFormat()
braceFormat.setForeground(QColor('darkGray'))
defClassFormat = QTextCharFormat()
defClassFormat.setForeground(QColor('black'))
stringFormat = QTextCharFormat()
stringFormat.setForeground(QColor('magenta'))
string2Format = QTextCharFormat()
string2Format.setForeground(QColor('darkMagenta'))
commentFormat = QTextCharFormat()
commentFormat.setForeground(QColor('darkGreen'))
commentFormat.setFontItalic(True)
selfFormat = QTextCharFormat()
selfFormat.setForeground(QColor('purple'))
selfFormat.setFontItalic(True)
numbersFormat = QTextCharFormat()
numbersFormat.setForeground(QColor('black'))
STYLES = {
'keyword': keywordFormat,
'operator': operatorFormat,
'brace': braceFormat,
'defclass': defClassFormat,
'string': stringFormat,
'string2': string2Format,
'comment': commentFormat,
'self': selfFormat,
'numbers': numbersFormat
}
class PythonHighlighter(QSyntaxHighlighter):
"""Syntax highlighter for the Python language.
"""
# Python keywords
keywords = [
'and', 'assert', 'break', 'class', 'continue', 'def',
'del', 'elif', 'else', 'except', 'exec', 'finally',
'for', 'from', 'global', 'if', 'import', 'in',
'is', 'lambda', 'not', 'or', 'pass', 'print',
'raise', 'return', 'try', 'while', 'yield',
'None', 'True', 'False',
]
# Python operators
operators = [
'=',
# Comparison
'==', '!=', '<', '<=', '>', '>=',
# Arithmetic
'\+', '-', '\*', '/', '//', '\%', '\*\*',
# In-place
'\+=', '-=', '\*=', '/=', '\%=',
# Bitwise
'\^', '\|', '\&', '\~', '>>', '<<',
]
# Python braces
braces = [
'\{', '\}', '\(', '\)', '\[', '\]',
]
def __init__(self, document):
QSyntaxHighlighter.__init__(self, document)
# Multi-line strings (expression, flag, style)
# FIXME: The triple-quotes in these two lines will mess up the
# syntax highlighting from this point onward
self.tri_single = (QRegExp("'''"), 1, STYLES['string2'])
self.tri_double = (QRegExp('"""'), 2, STYLES['string2'])
rules = []
# Keyword, operator, and brace rules
rules += [(r'\b%s\b' % w, 0, STYLES['keyword'])
for w in PythonHighlighter.keywords]
rules += [(r'%s' % o, 0, STYLES['operator'])
for o in PythonHighlighter.operators]
rules += [(r'%s' % b, 0, STYLES['brace'])
for b in PythonHighlighter.braces]
# All other rules
rules += [
# 'self'
(r'\bself\b', 0, STYLES['self']),
# Double-quoted string, possibly containing escape sequences
(r'"[^"\\]*(\\.[^"\\]*)*"', 0, STYLES['string']),
# Single-quoted string, possibly containing escape sequences
(r"'[^'\\]*(\\.[^'\\]*)*'", 0, STYLES['string']),
# 'def' followed by an identifier
(r'\bdef\b\s*(\w+)', 1, STYLES['defclass']),
# 'class' followed by an identifier
(r'\bclass\b\s*(\w+)', 1, STYLES['defclass']),
# From '#' until a newline
(r'#[^\n]*', 0, STYLES['comment']),
# Numeric literals
(r'\b[+-]?[0-9]+[lL]?\b', 0, STYLES['numbers']),
(r'\b[+-]?0[xX][0-9A-Fa-f]+[lL]?\b', 0, STYLES['numbers']),
(r'\b[+-]?[0-9]+(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?\b', 0, STYLES['numbers']),
]
# Build a QRegExp for each pattern
self.rules = [(QRegExp(pat), index, fmt)
for (pat, index, fmt) in rules]
def highlightBlock(self, text):
"""Apply syntax highlighting to the given block of text.
"""
# Do other syntax formatting
for expression, nth, format in self.rules:
index = expression.indexIn(text, 0)
while index >= 0:
# We actually want the index of the nth match
index = expression.pos(nth)
length = len(expression.cap(nth))
self.setFormat(index, length, format)
index = expression.indexIn(text, index + length)
self.setCurrentBlockState(0)
# Do multi-line strings
in_multiline = self.match_multiline(text, *self.tri_single)
if not in_multiline:
in_multiline = self.match_multiline(text, *self.tri_double)
def match_multiline(self, text, delimiter, in_state, style):
"""Do highlighting of multi-line strings. ``delimiter`` should be a
``QRegExp`` for triple-single-quotes or triple-double-quotes, and
``in_state`` should be a unique integer to represent the corresponding
state changes when inside those strings. Returns True if we're still
inside a multi-line string when this function is finished.
"""
# If inside triple-single quotes, start at 0
if self.previousBlockState() == in_state:
start = 0
add = 0
# Otherwise, look for the delimiter on this line
else:
start = delimiter.indexIn(text)
# Move past this match
add = delimiter.matchedLength()
# As long as there's a delimiter match on this line...
while start >= 0:
# Look for the ending delimiter
end = delimiter.indexIn(text, start + add)
# Ending delimiter on this line?
if end >= add:
length = end - start + add + delimiter.matchedLength()
self.setCurrentBlockState(0)
# No; multi-line string
else:
self.setCurrentBlockState(in_state)
length = len(text) - start + add
# Apply formatting
self.setFormat(start, length, style)
# Look for the next match
start = delimiter.indexIn(text, start + length)
# Return True if still inside a multi-line string, False otherwise
if self.currentBlockState() == in_state:
return True
else:
return False