def goto_loc(self,
loc,
operation=QTextCursor.Right,
mode=QTextCursor.KeepAnchor,
n=0):
cursor = QTextCursor(self.preview.document())
cursor.setPosition(loc)
if n:
cursor.movePosition(operation, mode, n)
self.preview.setTextCursor(cursor)
def copy_lines(self, lo, hi, cursor):
""" Copy specified lines from the syntax highlighted buffer into the
destination cursor, preserving all formatting created by the syntax
highlighter. """
num = hi - lo
if num > 0:
block = self.findBlockByNumber(lo + 1)
while num > 0:
num -= 1
cursor.insertText(block.text())
dest_block = cursor.block()
c = QTextCursor(dest_block)
for af in block.layout().additionalFormats():
start = dest_block.position() + af.start
c.setPosition(start), c.setPosition(start + af.length, c.KeepAnchor)
c.setCharFormat(af.format)
cursor.insertBlock()
cursor.setCharFormat(QTextCharFormat())
block = block.next()
def copy_lines(self, lo, hi, cursor):
''' Copy specified lines from the syntax highlighted buffer into the
destination cursor, preserving all formatting created by the syntax
highlighter. '''
num = hi - lo
if num > 0:
block = self.findBlockByNumber(lo)
while num > 0:
num -= 1
cursor.insertText(block.text())
dest_block = cursor.block()
c = QTextCursor(dest_block)
for af in block.layout().additionalFormats():
start = dest_block.position() + af.start
c.setPosition(start), c.setPosition(start + af.length, c.KeepAnchor)
c.setCharFormat(af.format)
cursor.insertBlock()
cursor.setCharFormat(NULL_FMT)
block = block.next()
def search(self, query, reverse=False):
''' Search for query, also searching the headers. Matches in headers
are not highlighted as managing the highlight is too much of a pain.'''
if not query.strip():
return
c = self.textCursor()
lnum = c.block().blockNumber()
cpos = c.positionInBlock()
headers = dict(self.headers)
if lnum in headers:
cpos = self.search_header_pos
lines = unicode(self.toPlainText()).splitlines()
for hn, text in self.headers:
lines[hn] = text
prefix, postfix = lines[lnum][:cpos], lines[lnum][cpos:]
before, after = enumerate(
lines[0:lnum]), ((lnum + 1 + i, x)
for i, x in enumerate(lines[lnum + 1:]))
if reverse:
sl = chain([(lnum, prefix)], reversed(tuple(before)),
reversed(tuple(after)), [(lnum, postfix)])
else:
sl = chain([(lnum, postfix)], after, before, [(lnum, prefix)])
flags = regex.REVERSE if reverse else 0
pat = regex.compile(regex.escape(query, special_only=True),
flags=regex.UNICODE | regex.IGNORECASE | flags)
for num, text in sl:
try:
m = next(pat.finditer(text))
except StopIteration:
continue
start, end = m.span()
length = end - start
if text is postfix:
start += cpos
c = QTextCursor(self.document().findBlockByNumber(num))
c.setPosition(c.position() + start)
if num in headers:
self.search_header_pos = start + length
else:
c.setPosition(c.position() + length, c.KeepAnchor)
self.search_header_pos = 0
if reverse:
pos, anchor = c.position(), c.anchor()
c.setPosition(pos), c.setPosition(anchor, c.KeepAnchor)
self.setTextCursor(c)
self.centerCursor()
self.scrolled.emit()
break
else:
info_dialog(self,
_('No matches found'),
_('No matches found for query: %s' % query),
show=True)
def search(self, query, reverse=False):
''' Search for query, also searching the headers. Matches in headers
are not highlighted as managing the highlight is too much of a pain.'''
if not query.strip():
return
c = self.textCursor()
lnum = c.block().blockNumber()
cpos = c.positionInBlock()
headers = dict(self.headers)
if lnum in headers:
cpos = self.search_header_pos
lines = unicode(self.toPlainText()).splitlines()
for hn, text in self.headers:
lines[hn] = text
prefix, postfix = lines[lnum][:cpos], lines[lnum][cpos:]
before, after = enumerate(lines[0:lnum]), ((lnum+1+i, x) for i, x in enumerate(lines[lnum+1:]))
if reverse:
sl = chain([(lnum, prefix)], reversed(tuple(before)), reversed(tuple(after)), [(lnum, postfix)])
else:
sl = chain([(lnum, postfix)], after, before, [(lnum, prefix)])
flags = regex.REVERSE if reverse else 0
pat = regex.compile(regex.escape(query, special_only=True), flags=regex.UNICODE|regex.IGNORECASE|flags)
for num, text in sl:
try:
m = next(pat.finditer(text))
except StopIteration:
continue
start, end = m.span()
length = end - start
if text is postfix:
start += cpos
c = QTextCursor(self.document().findBlockByNumber(num))
c.setPosition(c.position() + start)
if num in headers:
self.search_header_pos = start + length
else:
c.setPosition(c.position() + length, c.KeepAnchor)
self.search_header_pos = 0
if reverse:
pos, anchor = c.position(), c.anchor()
c.setPosition(pos), c.setPosition(anchor, c.KeepAnchor)
self.setTextCursor(c)
self.centerCursor()
self.scrolled.emit()
break
else:
info_dialog(self, _('No matches found'), _(
'No matches found for query: %s' % query), show=True)
def goto_loc(self, loc, operation=QTextCursor.Right, mode=QTextCursor.KeepAnchor, n=0):
cursor = QTextCursor(self.preview.document())
cursor.setPosition(loc)
if n:
cursor.movePosition(operation, mode, n)
self.preview.setTextCursor(cursor)
class PksMain(QMainWindow, Ui_PksWindow):
def __init__(self):
super(PksMain, self).__init__()
self.setupUi(self)
self.ksy_file = None
self.ks_parser = None
self.targetfile = None
self.base_struct = None
self._parsed = None
self._parse_tree = None
self._cursor = None
self._ksc_path = "C:/Program Files (x86)/kaitai-struct-compiler/bin/kaitai-struct-compiler.bat"
self.data_tree.itemSelectionChanged.connect(self._tree_line_selected)
self.reloadButton.clicked.connect(self._load_data)
self.ksyFileButton.clicked.connect(self._change_ksy)
self.targetFileButton.clicked.connect(self._change_targetfile)
self.reloadButton.setEnabled(False)
def _set_tree_model(self, parsing, parent=None):
self.data_tree.clear()
for field_info in parsing:
item = QTreeWidgetItem(parent)
item.setText(0, "%s" % field_info['name'])
item.setData(0, QtCore.Qt.UserRole,
(field_info['offset'], field_info['length']))
if isinstance(field_info['value'], list):
self._set_tree_model(field_info['value'], item)
else:
child = QTreeWidgetItem(item)
child.setText(0, repr(field_info['value']))
if parent is None:
self.data_tree.addTopLevelItem(item)
self.data_tree.expandItem(item)
def _set_ksy_window(self):
ksy_text = open(self.ksy_file).read()
self.ksy_editor.setPlainText(ksy_text)
def _set_data_window(self):
self.file_display.setReadOnly(True)
self._data = open(self.targetfile, 'rb').read()
text = []
for i in range(0, len(self._data), CHARS_PER_LINE):
line = self._data[i:i + CHARS_PER_LINE]
text.append(hexdump(line))
self.file_display.setPlainText("\n".join(text))
self._cursor = QTextCursor(self.file_display.document())
self.file_display.setTextCursor(self._cursor)
def _clear_data_highlight(self):
if self._cursor is not None:
unhighlight = QtGui.QTextCharFormat()
unhighlight.clearBackground()
self._cursor.setCharFormat(unhighlight)
self._cursor = None
def _tree_line_selected(self):
if not self.data_tree.selectedItems():
return
item = self.data_tree.selectedItems()[0]
data = item.data(0, QtCore.Qt.UserRole)
while data is None:
item = self.data_tree.itemAbove(item)
if item is None:
break
data = item.data(0, QtCore.Qt.UserRole)
if data is not None:
start, length = data
self._clear_data_highlight()
curs_start = to_display_pos(start)
curs_end = to_display_pos(start + length) - 1
if self._cursor is None:
self._cursor = QTextCursor(self.file_display.document())
self.file_display.setTextCursor(self._cursor)
self._cursor.setPosition(curs_start)
self._cursor.setPosition(curs_end, mode=self._cursor.KeepAnchor)
highlight = QtGui.QTextCharFormat()
highlight.setBackground(QtGui.QBrush(QtGui.QColor("red")))
self._cursor.mergeCharFormat(highlight)
def _change_ksy(self):
fname = dialog = QFileDialog.getOpenFileName(self, 'Select .ksy file',
'', 'KSY Files (*.ksy)')
if fname is None:
return
self.ksy_file = fname
self.ksy_filename_value_label.setText(fname)
self._load_data()
def _change_targetfile(self):
fname = dialog = QFileDialog.getOpenFileName(self,
'Select target file', '',
'All files (*)')
if fname is None:
return
self.targetfile = fname
self.target_file_label.setText(fname)
self._load_data()
def _load_data(self):
self._clear_data_highlight()
self.reloadButton.setEnabled(False)
if self.ksy_file is None:
return
self.reloadButton.setEnabled(True)
base_dir = os.path.dirname(self.ksy_file)
self.ks_parser = get_ks_parser_file_from_ksy_file(self.ksy_file)
parser_file_name = base_dir + "/" + self.ks_parser + ".py"
self.parser_file_name.setText(parser_file_name)
if self.ks_parser is None:
self.data_tree.clear()
self.base_struct = None
self._parsed = None
return
os.chdir(base_dir)
subprocess.call([self._ksc_path, "-t", "python", self.ksy_file],
cwd=base_dir)
self.base_struct, base_parser_name = pks_inspector.get_base_parser(
self.ks_parser, parser_file_name)
if base_parser_name is None:
self.root_parser_class_label.setText(
"ERROR - cannot find Python parser for .ksy file")
else:
self.root_parser_class_label.setText(base_parser_name)
if self.targetfile is not None and os.path.exists(
self.targetfile) and base_parser_name is not None:
self._parsed = self.base_struct.from_file(self.targetfile)
self._parse_tree = pks_inspector.to_tree(self._parsed)
self._set_tree_model(self._parse_tree)
self._set_ksy_window()
self._set_data_window()
