projetmbc wrote:
Hello
Baz Walter gives me somethiong to start with QScintilla but I don't
uderstand why the joined code doesn't make possible to reduce or expand
the folders.
Maybe I've forgotten to send something.
hello christophe
i expanded my earlier example to include folding. this is a complete
config files lexer based on the lexer for properties files in
src/LexOthers.cpp.
======>8======
import sys
from PyQt4.QtCore import SIGNAL, SLOT
from PyQt4.QtGui import QApplication, QMainWindow, QColor, QFont
from PyQt4.Qsci import QsciScintilla, QsciLexerCustom
if sys.hexversion < 0x020600F0:
print('python 2.6 or greater is required by this program')
sys.exit(1)
_sample = """
# Sample config file
this is a junk line
[FirstItem]
Width=100
Height=200
Colour=orange
Info=this is some
multiline
text
[SecondItem]
Width=200
Height=300
Colour=green
Info=
this is some
multiline
text
"""
class MainWindow(QMainWindow):
def __init__(self):
QMainWindow.__init__(self)
self.setWindowTitle('Custom Lexer For Config Files')
self.setGeometry(50, 200, 400, 400)
self.editor = QsciScintilla(self)
self.editor.setUtf8(True)
self.editor.setMarginWidth(2, 15)
self.editor.setFolding(True)
self.setCentralWidget(self.editor)
self.lexer = ConfigLexer(self.editor)
self.editor.setLexer(self.lexer)
self.editor.setText(_sample)
class ConfigLexer(QsciLexerCustom):
def __init__(self, parent):
QsciLexerCustom.__init__(self, parent)
self._styles = {
0: 'Default',
1: 'Comment',
2: 'Section',
3: 'Key',
4: 'Assignment',
5: 'Value',
}
for key,value in self._styles.iteritems():
setattr(self, value, key)
self._foldcompact = True
def foldCompact(self):
return self._foldcompact
def setFoldCompact(self, enable):
self._foldcompact = bool(enable)
def language(self):
return 'Config Files'
def description(self, style):
return self._styles.get(style, '')
def defaultColor(self, style):
if style == self.Default:
return QColor('#000000')
elif style == self.Comment:
return QColor('#A0A0A0')
elif style == self.Section:
return QColor('#CC6600')
elif style == self.Key:
return QColor('#0000CC')
elif style == self.Assignment:
return QColor('#CC0000')
elif style == self.Value:
return QColor('#00CC00')
return QsciLexerCustom.defaultColor(self, style)
def defaultPaper(self, style):
if style == self.Section:
return QColor('#FFEECC')
return QsciLexerCustom.defaultPaper(self, style)
def defaultEolFill(self, style):
if style == self.Section:
return True
return QsciLexerCustom.defaultEolFill(self, style)
def defaultFont(self, style):
if style == self.Comment:
if sys.platform in ('win32', 'cygwin'):
return QFont('Comic Sans MS', 9)
return QFont('Bitstream Vera Serif', 9)
return QsciLexerCustom.defaultFont(self, style)
def styleText(self, start, end):
editor = self.editor()
if editor is None:
return
SCI = editor.SendScintilla
GETFOLDLEVEL = QsciScintilla.SCI_GETFOLDLEVEL
SETFOLDLEVEL = QsciScintilla.SCI_SETFOLDLEVEL
HEADERFLAG = QsciScintilla.SC_FOLDLEVELHEADERFLAG
LEVELBASE = QsciScintilla.SC_FOLDLEVELBASE
NUMBERMASK = QsciScintilla.SC_FOLDLEVELNUMBERMASK
WHITEFLAG = QsciScintilla.SC_FOLDLEVELWHITEFLAG
set_style = self.setStyling
source = ''
if end > editor.length():
end = editor.length()
if end > start:
source = bytearray(end - start)
SCI(QsciScintilla.SCI_GETTEXTRANGE, start, end, source)
if not source:
return
compact = self.foldCompact()
index = SCI(QsciScintilla.SCI_LINEFROMPOSITION, start)
if index > 0:
pos = SCI(QsciScintilla.SCI_GETLINEENDPOSITION, index - 1)
state = SCI(QsciScintilla.SCI_GETSTYLEAT, pos)
else:
state = self.Default
self.startStyling(start, 0x1f)
for line in source.splitlines(True):
length = len(line)
if length == 1:
whitespace = compact
state = self.Default
else:
whitespace = False
firstchar = chr(line[0])
if firstchar in '#;':
state = self.Comment
elif firstchar == '[':
state = self.Section
elif firstchar in ' \t':
if state == self.Value or state == self.Assignment:
state = self.Value
else:
whitespace = compact and line.isspace()
state = self.Default
else:
pos = line.find('=')
if pos < 0:
pos = line.find(':')
else:
tmp = line.find(':', 0, pos)
if tmp >= 0:
pos = tmp
if pos > 0:
set_style(pos, self.Key)
set_style(1, self.Assignment)
length = length - pos - 1
state = self.Value
else:
state = self.Default
set_style(length, state)
if state == self.Section:
level = LEVELBASE | HEADERFLAG
elif index > 0:
lastlevel = SCI(GETFOLDLEVEL, index - 1)
if lastlevel & HEADERFLAG:
level = LEVELBASE + 1
else:
level = lastlevel & NUMBERMASK
else:
level = LEVELBASE
if whitespace:
level |= WHITEFLAG
if level != SCI(GETFOLDLEVEL, index):
SCI(SETFOLDLEVEL, index, level)
index += 1
if index > 0:
lastlevel = SCI(GETFOLDLEVEL, index - 1)
if lastlevel & HEADERFLAG:
level = LEVELBASE + 1
else:
level = lastlevel & NUMBERMASK
else:
level = LEVELBASE
lastlevel = SCI(GETFOLDLEVEL, index)
SCI(SETFOLDLEVEL, index, level | lastlevel & ~NUMBERMASK)
if __name__ == "__main__":
app = QApplication(sys.argv)
app.connect(app, SIGNAL('lastWindowClosed()'), app, SLOT('quit()'))
win = MainWindow()
win.show()
sys.exit(app.exec_())
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