本文整理汇总了Python中PyQt5.Qt.QTextCursor.hasSelection方法的典型用法代码示例。如果您正苦于以下问题：Python QTextCursor.hasSelection方法的具体用法？Python QTextCursor.hasSelection怎么用？Python QTextCursor.hasSelection使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类PyQt5.Qt.QTextCursor的用法示例。
在下文中一共展示了QTextCursor.hasSelection方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: find_text
# 需要导入模块: from PyQt5.Qt import QTextCursor [as 别名]
# 或者: from PyQt5.Qt.QTextCursor import hasSelection [as 别名]
def find_text(self, pat, cursor):
from calibre.gui2.tweak_book.text_search import find_text_in_chunks
chunks = []
cstart = min(cursor.position(), cursor.anchor())
cend = max(cursor.position(), cursor.anchor())
c = QTextCursor(cursor)
c.setPosition(cstart)
block = c.block()
in_text = find_tag_definition(block, 0)[0] is None
if in_text:
# Check if we are in comment/PI/etc.
pb = block.previous()
while pb.isValid():
boundaries = pb.userData().non_tag_structures
if boundaries:
if boundaries[-1].is_start:
in_text = False
break
pb = pb.previous()
def append(text, start):
text = text.replace(PARAGRAPH_SEPARATOR, '\n')
after = start + len(text)
if start <= cend and cstart < after:
extra = after - (cend + 1)
if extra > 0:
text = text[:-extra]
extra = cstart - start
if extra > 0:
text = text[extra:]
chunks.append((text, start + max(extra, 0)))
while block.isValid() and block.position() <= cend:
ud = block.userData()
boundaries = sorted(chain(ud.tags, ud.non_tag_structures), key=get_offset)
if not boundaries:
# Add the whole line
if in_text:
text = block.text() + '\n'
append(text, block.position())
else:
start = block.position()
c.setPosition(start)
for b in boundaries:
if in_text:
c.setPosition(start + b.offset, c.KeepAnchor)
if c.hasSelection():
append(c.selectedText(), c.anchor())
in_text = not b.is_start
c.setPosition(start + b.offset + 1)
if in_text:
# Add remaining text in block
c.setPosition(block.position() + boundaries[-1].offset + 1)
c.movePosition(c.EndOfBlock, c.KeepAnchor)
if c.hasSelection():
append(c.selectedText() + '\n', c.anchor())
block = block.next()
s, e = find_text_in_chunks(pat, chunks)
return s != -1 and e != -1, s, e示例2: find_text
# 需要导入模块: from PyQt5.Qt import QTextCursor [as 别名]
# 或者: from PyQt5.Qt.QTextCursor import hasSelection [as 别名]
def find_text(self, pat, cursor):
from calibre.gui2.tweak_book.text_search import find_text_in_chunks
chunks = []
cstart = min(cursor.position(), cursor.anchor())
cend = max(cursor.position(), cursor.anchor())
c = QTextCursor(cursor)
c.setPosition(cstart)
block = c.block()
in_text = find_tag_definition(block, 0)[0] is None
def append(text, start):
after = start + len(text)
if start <= cend and cstart < after:
extra = after - (cend + 1)
if extra > 0:
text = text[:-extra]
extra = cstart - start
if extra > 0:
text = text[extra:]
chunks.append((text, start + max(extra, 0)))
while block.isValid() and block.position() <= cend:
boundaries = sorted(block.userData().tags, key=get_offset)
if not boundaries:
# Add the whole line
if in_text:
text = block.text()
if text:
append(text, block.position())
else:
start = block.position()
c.setPosition(start)
for b in boundaries:
if in_text:
c.setPosition(start + b.offset, c.KeepAnchor)
if c.hasSelection():
append(c.selectedText(), c.anchor())
in_text = not b.is_start
c.setPosition(start + b.offset + 1)
if in_text:
# Add remaining text in block
c.setPosition(block.position() + boundaries[-1].offset + 1)
c.movePosition(c.EndOfBlock, c.KeepAnchor)
if c.hasSelection():
append(c.selectedText(), c.anchor())
block = block.next()
s, e = find_text_in_chunks(pat, chunks)
return s != -1 and e != -1, s, e