def collapse_all(self): """ Collapses all triggers and makes all blocks with fold level > 0 invisible. """ self._clear_block_deco() block = self.editor.document().firstBlock() last = self.editor.document().lastBlock() while block.isValid(): lvl = TextBlockHelper.get_fold_lvl(block) trigger = TextBlockHelper.is_fold_trigger(block) if trigger: if lvl == 0: self._show_previous_blank_lines(block) TextBlockHelper.set_collapsed(block, True) block.setVisible(lvl == 0) if block == last and block.text().strip() == '': block.setVisible(True) self._show_previous_blank_lines(block) block = block.next() self._refresh_editor_and_scrollbars() tc = self.editor.textCursor() tc.movePosition(tc.Start) self.editor.setTextCursor(tc) self.collapse_all_triggered.emit()
def fold(self): """Folds the region.""" start, end = self.get_range() TextBlockHelper.set_collapsed(self._trigger, True) block = self._trigger.next() while block.blockNumber() <= end and block.isValid(): block.setVisible(False) block = block.next()
def unfold(self): """Unfolds the region.""" # set all direct child blocks which are not triggers to be visible self._trigger.setVisible(True) TextBlockHelper.set_collapsed(self._trigger, False) for block in self.blocks(ignore_blank_lines=False): block.setVisible(True) if TextBlockHelper.is_fold_trigger(block): TextBlockHelper.set_collapsed(block, False)
def process_block(self, current_block, previous_block, text): """ Processes a block and setup its folding info. This method call ``detect_fold_level`` and handles most of the tricky corner cases so that all you have to do is focus on getting the proper fold level foreach meaningful block, skipping the blank ones. :param current_block: current block to process :param previous_block: previous block :param text: current block text """ prev_fold_level = TextBlockHelper.get_fold_lvl(previous_block) if text.strip() == '' or self.editor.is_comment(current_block): # blank or comment line always have the same level # as the previous line fold_level = prev_fold_level else: fold_level = self.detect_fold_level( previous_block, current_block) if fold_level > self.limit: fold_level = self.limit prev_fold_level = TextBlockHelper.get_fold_lvl(previous_block) if fold_level > prev_fold_level: # apply on previous blank or comment lines block = current_block.previous() while block.isValid() and (block.text().strip() == '' or self.editor.is_comment(block)): TextBlockHelper.set_fold_lvl(block, fold_level) block = block.previous() TextBlockHelper.set_fold_trigger( block, True) # update block fold level if text.strip() and not self.editor.is_comment(previous_block): TextBlockHelper.set_fold_trigger( previous_block, fold_level > prev_fold_level) TextBlockHelper.set_fold_lvl(current_block, fold_level) # user pressed enter at the beginning of a fold trigger line # the previous blank or comment line will keep the trigger state # and the new line (which actually contains the trigger) must use # the prev state (and prev state must then be reset). prev = current_block.previous() # real prev block (may be blank) if (prev and prev.isValid() and (prev.text().strip() == '' or self.editor.is_comment(prev)) and TextBlockHelper.is_fold_trigger(prev)): # prev line has the correct trigger fold state TextBlockHelper.set_collapsed( current_block, TextBlockHelper.is_collapsed( prev)) # make empty or comment line not a trigger TextBlockHelper.set_fold_trigger(prev, False) TextBlockHelper.set_collapsed(prev, False)
def expand_all(self): """Expands all fold triggers.""" block = self.editor.document().firstBlock() while block.isValid(): TextBlockHelper.set_collapsed(block, False) block.setVisible(True) block = block.next() self._clear_block_deco() self._refresh_editor_and_scrollbars() self.expand_all_triggered.emit()
def process_block(self, current_block, previous_block, text): """ Processes a block and setup its folding info. This method call ``detect_fold_level`` and handles most of the tricky corner cases so that all you have to do is focus on getting the proper fold level foreach meaningful block, skipping the blank ones. :param current_block: current block to process :param previous_block: previous block :param text: current block text """ prev_fold_level = TextBlockHelper.get_fold_lvl(previous_block) if text.strip() == '' or self.editor.is_comment(current_block): # blank or comment line always have the same level # as the previous line fold_level = prev_fold_level else: fold_level = self.detect_fold_level(previous_block, current_block) if fold_level > self.limit: fold_level = self.limit prev_fold_level = TextBlockHelper.get_fold_lvl(previous_block) if fold_level > prev_fold_level: # apply on previous blank or comment lines block = current_block.previous() while block.isValid() and (block.text().strip() == '' or self.editor.is_comment(block)): TextBlockHelper.set_fold_lvl(block, fold_level) block = block.previous() TextBlockHelper.set_fold_trigger(block, True) # update block fold level if text.strip() and not self.editor.is_comment(previous_block): TextBlockHelper.set_fold_trigger(previous_block, fold_level > prev_fold_level) TextBlockHelper.set_fold_lvl(current_block, fold_level) # user pressed enter at the beginning of a fold trigger line # the previous blank or comment line will keep the trigger state # and the new line (which actually contains the trigger) must use # the prev state (and prev state must then be reset). prev = current_block.previous() # real prev block (may be blank) if (prev and prev.isValid() and (prev.text().strip() == '' or self.editor.is_comment(prev)) and TextBlockHelper.is_fold_trigger(prev)): # prev line has the correct trigger fold state TextBlockHelper.set_collapsed(current_block, TextBlockHelper.is_collapsed(prev)) # make empty or comment line not a trigger TextBlockHelper.set_fold_trigger(prev, False) TextBlockHelper.set_collapsed(prev, False)