def cursors(self):
"""Cursors for rectangular selection.
1 cursor for every line
"""
cursors = []
if self._start is not None:
startLine, startVisibleCol = self._start
currentLine, currentCol = self._qpart.cursorPosition
if abs(startLine - currentLine) > self._MAX_SIZE or \
abs(startVisibleCol - currentCol) > self._MAX_SIZE:
# Too big rectangular selection freezes the GUI
self._qpart.userWarning.emit('Rectangular selection area is too big')
self._start = None
return []
currentBlockText = self._qpart.textCursor().block().text()
currentVisibleCol = self._realToVisibleColumn(currentBlockText, currentCol)
for lineNumber in range(min(startLine, currentLine),
max(startLine, currentLine) + 1):
block = self._qpart.document().findBlockByNumber(lineNumber)
cursor = QTextCursor(block)
realStartCol = self._visibleToRealColumn(block.text(), startVisibleCol)
realCurrentCol = self._visibleToRealColumn(block.text(), currentVisibleCol)
if realStartCol is None:
realStartCol = block.length() # out of range value
if realCurrentCol is None:
realCurrentCol = block.length() # out of range value
cursor.setPositionInBlock(min(realStartCol, block.length() - 1))
cursor.setPositionInBlock(min(realCurrentCol, block.length() - 1), QTextCursor.KeepAnchor)
cursors.append(cursor)
return cursors
def selectedPosition(self, pos):
anchorPos, cursorPos = pos
anchorLine, anchorCol = anchorPos
cursorLine, cursorCol = cursorPos
anchorCursor = QTextCursor(self.document().findBlockByNumber(anchorLine))
anchorCursor.setPositionInBlock(anchorCol)
# just get absolute position
cursor = QTextCursor(self.document().findBlockByNumber(cursorLine))
cursor.setPositionInBlock(cursorCol)
anchorCursor.setPosition(cursor.position(), QTextCursor.KeepAnchor)
self.setTextCursor(anchorCursor)
def cursorPosition(self, pos):
line, col = pos
line = min(line, len(self.lines) - 1)
lineText = self.lines[line]
if col is not None:
col = min(col, len(lineText))
else:
col = len(lineText) - len(lineText.lstrip())
cursor = QTextCursor(self.document().findBlockByNumber(line))
cursor.setPositionInBlock(col)
self.setTextCursor(cursor)
def cursorAtSpaceEnd(block):
cursor = QTextCursor(block)
cursor.setPositionInBlock(len(blockIndentation(block)))
return cursor
def cursorRect(block, column, offset):
cursor = QTextCursor(block)
cursor.setPositionInBlock(column)
return self.cursorRect(cursor).translated(offset, 0)
