suckless/dwm - Unnamed repository; edit this file 'description' to name the repository.

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Diffstat (limited to 'config.h')

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1 files changed, 2 insertions, 2 deletions

# Copyright (C) 2009, 2010 Roman Zimbelmann <romanz@lavabit.com> # Copyright (C) 2010 David Barnett <davidbarnett2@gmail.com> # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. """ The pager displays text and allows you to scroll inside it. """ import re from . import Widget from ranger.gui import ansi from ranger.ext.direction import Direction from ranger.container.keymap import CommandArgs BAR_REGEXP = re.compile(r'\|\d+\?\|') QUOTES_REGEXP = re.compile(r'"[^"]+?"') SPECIAL_CHARS_REGEXP = re.compile(r'<\w+>|\^[A-Z]') TITLE_REGEXP = re.compile(r'^\d+\.') class Pager(Widget): source = None source_is_stream = False old_source = None old_scroll_begin = 0 old_startx = 0 def __init__(self, win, embedded=False): Widget.__init__(self, win) self.embedded = embedded self.scroll_begin = 0 self.startx = 0 self.markup = None self.lines = [] def open(self): self.scroll_begin = 0 self.markup = None self.startx = 0 self.need_redraw = True def close(self): if self.source and self.source_is_stream: self.source.close() def finalize(self): self.fm.ui.win.move(self.y, self.x) def draw(self): if self.old_source != self.source: self.old_source = self.source self.need_redraw = True if self.old_scroll_begin != self.scroll_begin or \ self.old_startx != self.startx: self.old_startx = self.startx self.old_scroll_begin = self.scroll_begin self.need_redraw = True if self.need_redraw: self.win.erase() line_gen = self._generate_lines( starty=self.scroll_begin, startx=self.startx) for line, i in zip(line_gen, range(self.hei)): self._draw_line(i, line) self.need_redraw = False def _draw_line(self, i, line): if self.markup is None: self.addstr(i, 0, line) elif self.markup is 'help': self.addstr(i, 0, line) baseclr = ('in_pager', 'help_markup') if line.startswith('===='): self.color_at(i, 0, len(line), 'seperator', *baseclr) return if line.startswith(' ') and \ len(line) >= 16 and line[15] == ' ': self.color_at(i, 0, 16, 'key', *baseclr) for m in BAR_REGEXP.finditer(line): start, length = m.start(), m.end() - m.start() self.color_at(i, start, length, 'bars', *baseclr) self.color_at(i, start + 1, length - 2, 'link', *baseclr) for m in QUOTES_REGEXP.finditer(line): start, length = m.start(), m.end() - m.start() self.color_at(i, start, length, 'quotes', *baseclr) self.color_at(i, start + 1, length - 2, 'text', *baseclr) for m in SPECIAL_CHARS_REGEXP.finditer(line): start, length = m.start(), m.end() - m.start() self.color_at(i, start, length, 'special', *baseclr) if TITLE_REGEXP.match(line): self.color_at(i, 0, -1, 'title', *baseclr) elif self.markup == 'ansi': self.win.move(i, 0) for chunk in ansi.text_with_fg_bg_attr(line): if isinstance(chunk, tuple): self.set_fg_bg_attr(*chunk) else: self.addstr(chunk) def move(self, narg=None, **kw): direction = Direction(kw) if direction.horizontal(): self.startx = direction.move( direction=direction.right(), override=narg, maximum=self._get_max_width(), current=self.startx, pagesize=self.wid, offset=-self.wid + 1) if direction.vertical(): if self.source_is_stream: self._get_line(self.scroll_begin + self.hei * 2) self.scroll_begin = direction.move( direction=direction.down(), override=narg, maximum=len(self.lines), current=self.scroll_begin, pagesize=self.hei, offset=-self.hei + 1) def press(self, key): self.env.keymanager.use_context(self.embedded and 'embedded_pager' or 'pager') self.env.key_append(key) kbuf = self.env.keybuffer cmd = kbuf.command if kbuf.failure: kbuf.clear() return elif not cmd: return self.env.cmd = cmd if cmd.function: try: cmd.function(CommandArgs.from_widget(self)) except Exception as error: self.fm.notify(error) if kbuf.done: kbuf.clear() else: kbuf.clear() def set_source(self, source, strip=False): if self.source and self.source_is_stream: self.source.close() if isinstance(source, str): self.source_is_stream = False self.lines = source.splitlines() elif hasattr(source, '__getitem__'): self.source_is_stream = False self.lines = source elif hasattr(source, 'readline'): self.source_is_stream = True self.markup = 'ansi' self.lines = [] else: self.source = None self.source_is_stream = False return False if not self.source_is_stream and strip: self.lines = map(lambda x: x.strip(), self.lines) self.source = source return True def click(self, event): n = event.ctrl() and 1 or 3 direction = event.mouse_wheel_direction() if direction: self.move(down=direction * n) return True def _get_line(self, n, attempt_to_read=True): assert isinstance(n, int), n try: return self.lines[n] except (KeyError, IndexError): if attempt_to_read and self.source_is_stream: try: for l in self.source: self.lines.append(l) if len(self.lines) > n: break except UnicodeError: pass return self._get_line(n, attempt_to_read=False) return "" def _generate_lines(self, starty, startx): i = starty if not self.source: raise StopIteration while True: try: line = self._get_line(i).expandtabs(4) if self.markup is 'ansi': line = ansi.char_slice(line, startx, self.wid + startx) \ + ansi.reset else: line = line[startx:self.wid + startx] yield line.rstrip() except IndexError: raise StopIteration i += 1 def _get_max_width(self): return max(len(line) for line in self.lines)


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