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from defconQt.baseCodeEditor import CodeEditor, CodeHighlighter
from PyQt5.QtCore import Qt
from PyQt5.QtGui import (QColor, QFont, QKeySequence, QTextCharFormat,
QTextCursor)
from PyQt5.QtWidgets import QApplication, QMainWindow, QMenu, QMessageBox
import os
# TODO: implement search and replace
class MainEditWindow(QMainWindow):
def __init__(self, font=None, parent=None):
super(MainEditWindow, self).__init__(parent)
self.font = font
self.font.info.addObserver(self, "_fontInfoChanged", "Info.Changed")
self.editor = FeatureTextEditor(self.font.features.text, self)
self.resize(600, 500)
fileMenu = QMenu("&File", self)
fileMenu.addAction("&Save…", self.save, QKeySequence.Save)
fileMenu.addSeparator()
fileMenu.addAction("&Reload From Disk", self.reload)
fileMenu.addAction("E&xit", self.close, QKeySequence.Quit)
self.menuBar().addMenu(fileMenu)
self.setCentralWidget(self.editor)
self.setWindowTitle(font=self.font)
self.editor.modificationChanged.connect(self.setWindowModified)
def setWindowTitle(self, title="Font Features", font=None):
if font is not None:
puts = "[*]%s – %s %s" % (
title, self.font.info.familyName, self.font.info.styleName)
else:
puts = "[*]%s" % title
super(MainEditWindow, self).setWindowTitle(puts)
def _fontInfoChanged(self, notification):
self.setWindowTitle(font=self.font)
def closeEvent(self, event):
if self.editor.document().isModified():
name = QApplication.applicationName()
closeDialog = QMessageBox(
QMessageBox.Question,
name,
"Save your changes?",
QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel,
self
)
closeDialog.setInformativeText(
"Your changes will be lost if you don’t save them."
)
closeDialog.setModal(True)
ret = closeDialog.exec_()
if ret == QMessageBox.Save:
self.save()
event.accept()
elif ret == QMessageBox.Discard:
event.accept()
else:
event.ignore()
return
self.font.info.removeObserver(self, "Info.Changed")
def reload(self):
self.font.reloadFeatures()
self.editor.setPlainText(self.font.features.text)
def save(self):
self.editor.write(self.font.features)
class FeatureTextEditor(CodeEditor):
def __init__(self, text=None, parent=None):
super(FeatureTextEditor, self).__init__(text, parent)
self.openBlockDelimiter = '{'
self.highlighter = FeatureTextHighlighter(self.document())
def write(self, features):
features.text = self.toPlainText()
self.document().setModified(False)
def keyPressEvent(self, event):
key = event.key()
if key == Qt.Key_Return:
cursor = self.textCursor()
indentLvl = self.findLineIndentLevel()
newBlock = False
pos = cursor.position()
cursor.movePosition(QTextCursor.PreviousCharacter,
QTextCursor.KeepAnchor)
if cursor.selectedText() == self.openBlockDelimiter:
# We don't add a closing tag if there is text right
# below with the same indentation level because in
# that case the user might just be looking to add a
# new line
ok = cursor.movePosition(QTextCursor.Down)
if ok:
downIndentLvl = self.findLineIndentLevel(cursor)
cursor.select(QTextCursor.LineUnderCursor)
if (cursor.selectedText().strip() == ''
or downIndentLvl <= indentLvl):
newBlock = True
cursor.movePosition(QTextCursor.Up)
else:
newBlock = True
indentLvl += 1
if newBlock:
cursor.select(QTextCursor.LineUnderCursor)
txt = cursor.selectedText().lstrip(" ").split(" ")
if len(txt) > 1:
if len(txt) < 3 and txt[-1][-1] == self.openBlockDelimiter:
feature = txt[-1][:-1]
else:
feature = txt[1]
else:
feature = None
cursor.setPosition(pos)
cursor.insertText("\n")
newLineSpace = "".join(self.indent for _ in range(indentLvl))
cursor.insertText(newLineSpace)
if newBlock:
cursor.insertText("\n")
newLineSpace = "".join((newLineSpace[:-len(self.indent)], "} ",
feature, ";"))
cursor.insertText(newLineSpace)
cursor.movePosition(QTextCursor.Up)
cursor.movePosition(QTextCursor.EndOfLine)
self.setTextCursor(cursor)
else:
super(FeatureTextEditor, self).keyPressEvent(event)
def dragEnterEvent(self, event):
if event.source() != self:
mimeData = event.mimeData()
if mimeData.hasUrls():
paths = mimeData.urls()
for path in paths:
localPath = path.toLocalFile()
if os.path.splitext(localPath)[1] == ".fea":
event.acceptProposedAction()
break
return
super().dragEnterEvent(event)
def dropEvent(self, event):
if event.source() != self:
mimeData = event.mimeData()
if mimeData.hasUrls():
paths = mimeData.urls()
feaPaths = []
for path in paths:
localPath = path.toLocalFile()
if os.path.splitext(localPath)[1] == ".fea":
feaPaths.append(localPath)
textCursor = self.cursorForPosition(event.pos())
textCursor.insertText("\n".join(
"include(%s);" % feaPath for feaPath in feaPaths))
self.setTextCursor(textCursor)
# XXX: Qt uses cleanup routines in a private namespace
# called by the superclass. Ugh. We have no choice but to make
# up an empty event if we want to exit drag state.
mimeData = mimeData.__class__()
event = event.__class__(
event.posF(), event.possibleActions(), mimeData,
event.mouseButtons(), event.keyboardModifiers())
super().dropEvent(event)
keywordPatterns = [
"Ascender", "Attach", "CapHeight", "CaretOffset", "CodePageRange",
"Descender", "FontRevision", "GlyphClassDef", "HorizAxis.BaseScriptList",
"HorizAxis.BaseTagList", "HorizAxis.MinMax", "IgnoreBaseGlyphs",
"IgnoreLigatures", "IgnoreMarks", "LigatureCaretByDev",
"LigatureCaretByIndex", "LigatureCaretByPos", "LineGap", "MarkAttachClass",
"MarkAttachmentType", "NULL", "Panose", "RightToLeft", "TypoAscender",
"TypoDescender", "TypoLineGap", "UnicodeRange", "UseMarkFilteringSet",
"Vendor", "VertAdvanceY", "VertAxis.BaseScriptList",
"VertAxis.BaseTagList", "VertAxis.MinMax", "VertOriginY",
"VertTypoAscender", "VertTypoDescender", "VertTypoLineGap", "XHeight",
"anchorDef", "anchor", "anonymous", "anon", "by", "contour", "cursive",
"device", "enumerate", "enum", "exclude_dflt", "featureNames", "feature",
"from", "ignore", "include_dflt", "include", "languagesystem", "language",
"lookupflag", "lookup", "markClass", "mark", "nameid", "name",
"parameters", "position", "pos", "required", "reversesub", "rsub",
"script", "sizemenuname", "substitute", "subtable", "sub", "table",
"useExtension", "valueRecordDef", "winAscent", "winDescent"
]
class FeatureTextHighlighter(CodeHighlighter):
def __init__(self, parent=None):
super(FeatureTextHighlighter, self).__init__(parent)
keywordFormat = QTextCharFormat()
keywordFormat.setForeground(QColor(34, 34, 34))
keywordFormat.setFontWeight(QFont.Bold)
self.highlightingRules.append(("\\b(%s)\\b"
% ("|".join(keywordPatterns)),
keywordFormat))
singleLineCommentFormat = QTextCharFormat()
singleLineCommentFormat.setForeground(Qt.darkGray)
self.highlightingRules.append(("#[^\n]*", singleLineCommentFormat))
groupFormat = QTextCharFormat()
groupFormat.setFontWeight(QFont.Bold)
groupFormat.setForeground(QColor(96, 106, 161))
self.highlightingRules.append(("@[A-Za-z0-9_.]+", groupFormat))
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