import nomadnet import urwid import time from urwid.util import is_mouse_press from urwid.text_layout import calc_coords import re DEFAULT_FG_DARK = "ddd" DEFAULT_FG_LIGHT = "222" DEFAULT_BG = "default" SELECTED_STYLES = None STYLES_DARK = { "plain": { "fg": DEFAULT_FG_DARK, "bg": DEFAULT_BG, "bold": False, "underline": False, "italic": False }, "heading1": { "fg": "222", "bg": "bbb", "bold": False, "underline": False, "italic": False }, "heading2": { "fg": "111", "bg": "999", "bold": False, "underline": False, "italic": False }, "heading3": { "fg": "000", "bg": "777", "bold": False, "underline": False, "italic": False }, } STYLES_LIGHT = { "plain": { "fg": DEFAULT_FG_LIGHT, "bg": DEFAULT_BG, "bold": False, "underline": False, "italic": False }, "heading1": { "fg": "000", "bg": "777", "bold": False, "underline": False, "italic": False }, "heading2": { "fg": "111", "bg": "aaa", "bold": False, "underline": False, "italic": False }, "heading3": { "fg": "222", "bg": "ccc", "bold": False, "underline": False, "italic": False }, } SYNTH_STYLES = [] SYNTH_SPECS = {} SECTION_INDENT = 2 INDENT_RIGHT = 1 def markup_to_attrmaps(markup, url_delegate = None): global SELECTED_STYLES if nomadnet.NomadNetworkApp.get_shared_instance().config["textui"]["theme"] == nomadnet.ui.TextUI.THEME_DARK: SELECTED_STYLES = STYLES_DARK else: SELECTED_STYLES = STYLES_LIGHT attrmaps = [] state = { "literal": False, "depth": 0, "fg_color": SELECTED_STYLES["plain"]["fg"], "bg_color": DEFAULT_BG, "formatting": { "bold": False, "underline": False, "italic": False, "strikethrough": False, "blink": False, }, "default_align": "left", "align": "left", } # Split entire document into lines for # processing. lines = markup.split("\n"); for line in lines: if len(line) > 0: display_widget = parse_line(line, state, url_delegate) else: display_widget = urwid.Text("") if display_widget != None: attrmap = urwid.AttrMap(display_widget, make_style(state)) attrmaps.append(attrmap) return attrmaps def parse_line(line, state, url_delegate): if len(line) > 0: first_char = line[0] # Check for literals if len(line) == 2 and line == "`=": state["literal"] ^= True return None # Only parse content if not in literal state if not state["literal"]: # Check if the command is an escape if first_char == "\\": line = line[1:] # Check for comments elif first_char == "#": return None # Check for section heading reset elif first_char == "<": state["depth"] = 0 return parse_line(line[1:], state, url_delegate) # Check for section headings elif first_char == ">": i = 0 while i < len(line) and line[i] == ">": i += 1 state["depth"] = i for j in range(1, i+1): wanted_style = "heading"+str(i) if wanted_style in SELECTED_STYLES: style = SELECTED_STYLES[wanted_style] line = line[state["depth"]:] if len(line) > 0: latched_style = state_to_style(state) style_to_state(style, state) heading_style = make_style(state) output = make_output(state, line, url_delegate) style_to_state(latched_style, state) if len(output) > 0: first_style = output[0][0] heading_style = first_style output.insert(0, " "*left_indent(state)) return urwid.AttrMap(urwid.Text(output, align=state["align"]), heading_style) else: return None else: return None # Check for horizontal dividers elif first_char == "-": if len(line) == 2: divider_char = line[1] else: divider_char = "\u2500" if state["depth"] == 0: return urwid.Divider(divider_char) else: return urwid.Padding(urwid.Divider(divider_char), left=left_indent(state), right=right_indent(state)) output = make_output(state, line, url_delegate) if output != None: if url_delegate != None: text_widget = LinkableText(output, align=state["align"], delegate=url_delegate) else: text_widget = urwid.Text(output, align=state["align"]) if state["depth"] == 0: return text_widget else: return urwid.Padding(text_widget, left=left_indent(state), right=right_indent(state)) else: return None else: return None def left_indent(state): return (state["depth"]-1)*SECTION_INDENT def right_indent(state): return (state["depth"]-1)*SECTION_INDENT def make_part(state, part): return (make_style(state), part) def state_to_style(state): return { "fg": state["fg_color"], "bg": state["bg_color"], "bold": state["formatting"]["bold"], "underline": state["formatting"]["underline"], "italic": state["formatting"]["italic"] } def style_to_state(style, state): if style["fg"] != None: state["fg_color"] = style["fg"] if style["bg"] != None: state["bg_color"] = style["bg"] if style["bold"] != None: state["formatting"]["bold"] = style["bold"] if style["underline"] != None: state["formatting"]["underline"] = style["underline"] if style["italic"] != None: state["formatting"]["italic"] = style["italic"] def make_style(state): def mono_color(fg, bg): return "default" def low_color(color): try: result = "default" if color == "default": result = "default" elif len(color) == 6: r = str(color[0]) g = str(color[2]) b = str(color[4]) color = r+g+b if len(color) == 3: t = 7 if color[0] == "g": val = int(color[1:2]) if val < 25: result = "black" elif val < 50: result = "dark gray" elif val < 75: result = "light gray" else: result = "white" else: r = int(color[0], 16) g = int(color[1], 16) b = int(color[2], 16) if r == g == b: val = int(color[0], 16)*6 if val < 12: result = "black" elif val < 50: result = "dark gray" elif val < 80: result = "light gray" else: result = "white" else: if r == b: if r > g: if r > t: result = "light magenta" else: result = "dark magenta" else: if g > t: result = "light green" else: result = "dark green" if b == g: if b > r: if b > t: result = "light cyan" else: result = "dark cyan" else: if r > t: result = "light red" else: result = "dark red" if g == r: if g > b: if g > t: result = "yellow" else: result = "brown" else: if b > t: result = "light blue" else: result = "dark blue" if r > g and r > b: if r > t: result = "light red" else: result = "dark red" if g > r and g > b: if g > t: result = "light green" else: result = "dark green" if b > g and b > r: if b > t: result = "light blue" else: result = "dark blue" except Exception as e: result = "default" return result def high_color(color): def parseval_hex(char): return hex(max(0,min(int(char, 16),16)))[2:] def parseval_dec(char): return str(max(0,min(int(char), 9))) if color == "default": return "default" else: if len(color) == 6: try: v1 = parseval_hex(color[0]) v2 = parseval_hex(color[1]) v3 = parseval_hex(color[2]) v4 = parseval_hex(color[3]) v5 = parseval_hex(color[4]) v6 = parseval_hex(color[5]) color = "#"+v1+v2+v3+v4+v5+v6 except Exception as e: return "default" return color elif len(color) == 3: if color[0] == "g": try: v1 = parseval_dec(color[1]) v2 = parseval_dec(color[2]) except Exception as e: return "default" return "g"+v1+v2 else: try: v1 = parseval_hex(color[0]) v2 = parseval_hex(color[1]) v3 = parseval_hex(color[2]) color = v1+v2+v3 except Exception as e: return "default" r = color[0] g = color[1] b = color[2] return "#"+r+r+g+g+b+b bold = state["formatting"]["bold"] underline = state["formatting"]["underline"] italic = state["formatting"]["italic"] fg = state["fg_color"] bg = state["bg_color"] format_string = "" if bold: format_string += ",bold" if underline: format_string += ",underline" if italic: format_string += ",italics" name = "micron_"+fg+"_"+bg+"_"+format_string if not name in SYNTH_STYLES: screen = nomadnet.NomadNetworkApp.get_shared_instance().ui.screen screen.register_palette_entry(name, low_color(fg)+format_string,low_color(bg),mono_color(fg, bg)+format_string,high_color(fg)+format_string,high_color(bg)) synth_spec = screen._palette[name] SYNTH_STYLES.append(name) if not name in SYNTH_SPECS: SYNTH_SPECS[name] = synth_spec return name def make_output(state, line, url_delegate): output = [] if state["literal"]: if line == "\\`=": line = "`=" output.append(make_part(state, line)) else: part = "" mode = "text" escape = False skip = 0 for i in range(0, len(line)): c = line[i] if skip > 0: skip -= 1 else: if mode == "formatting": if c == "_": state["formatting"]["underline"] ^= True elif c == "!": state["formatting"]["bold"] ^= True elif c == "*": state["formatting"]["italic"] ^= True elif c == "F": if len(line) >= i+4: color = line[i+1:i+4] state["fg_color"] = color skip = 3 elif c == "f": state["fg_color"] = SELECTED_STYLES["plain"]["fg"] elif c == "B": if len(line) >= i+4: color = line[i+1:i+4] state["bg_color"] = color skip = 3 elif c == "b": state["bg_color"] = DEFAULT_BG elif c == "`": state["formatting"]["bold"] = False state["formatting"]["underline"] = False state["formatting"]["italic"] = False state["fg_color"] = SELECTED_STYLES["plain"]["fg"] state["bg_color"] = DEFAULT_BG state["align"] = state["default_align"] elif c == "c": if state["align"] != "center": state["align"] = "center" else: state["align"] = state["default_align"] elif c == "l": if state["align"] != "left": state["align"] = "left" else: state["align"] = state["default_align"] elif c == "r": if state["align"] != "right": state["align"] = "right" else: state["align"] = state["default_align"] elif c == "a": state["align"] = state["default_align"] elif c == "[": endpos = line[i:].find("]") if endpos == -1: pass else: link_data = line[i+1:i+endpos] skip = endpos link_components = link_data.split("`") if len(link_components) == 1: link_label = "" link_url = link_data elif len(link_components) == 2: link_label = link_components[0] link_url = link_components[1] else: link_url = "" link_label = "" if len(link_url) != 0: if link_label == "": link_label = link_url # First generate output until now if len(part) > 0: output.append(make_part(state, part)) cm = nomadnet.NomadNetworkApp.get_shared_instance().ui.colormode specname = make_style(state) speclist = SYNTH_SPECS[specname] if cm == 1: orig_spec = speclist[0] elif cm == 16: orig_spec = speclist[1] elif cm == 88: orig_spec = speclist[2] elif cm == 256: orig_spec = speclist[3] elif cm == 2**24: orig_spec = speclist[4] if url_delegate != None: linkspec = LinkSpec(link_url, orig_spec) output.append((linkspec, link_label)) else: output.append(make_part(state, link_label)) mode = "text" if len(part) > 0: output.append(make_part(state, part)) elif mode == "text": if c == "\\": escape = True elif c == "`": if escape: part += c escape = False else: mode = "formatting" if len(part) > 0: output.append(make_part(state, part)) part = "" else: part += c if i == len(line)-1: if len(part) > 0: output.append(make_part(state, part)) if len(output) > 0: return output else: return None class LinkSpec(urwid.AttrSpec): def __init__(self, link_target, orig_spec): self.link_target = link_target urwid.AttrSpec.__init__(self, orig_spec.foreground, orig_spec.background) class LinkableText(urwid.Text): ignore_focus = False _selectable = True signals = ["click", "change"] def __init__(self, text, align=None, cursor_position=0, delegate=None): self.__super.__init__(text, align=align) self.delegate = delegate self._cursor_position = 0 self.key_timeout = 3 if self.delegate != None: self.delegate.last_keypress = 0 def handle_link(self, link_target): if self.delegate != None: self.delegate.handle_link(link_target) def find_next_part_pos(self, pos, part_positions): for position in part_positions: if position > pos: return position return pos def find_prev_part_pos(self, pos, part_positions): nextpos = pos for position in part_positions: if position < pos: nextpos = position return nextpos def find_item_at_pos(self, pos): total = 0 text, parts = self.get_text() for i, info in enumerate(parts): style, length = info if total <= pos < length+total: return style total += length return None def peek_link(self): item = self.find_item_at_pos(self._cursor_position) if item != None: if isinstance(item, LinkSpec): if self.delegate != None: self.delegate.marked_link(item.link_target) else: if self.delegate != None: self.delegate.marked_link(None) def keypress(self, size, key): part_positions = [0] parts = [] total = 0 text, parts = self.get_text() for i, info in enumerate(parts): style_name, length = info part_positions.append(length+total) total += length if self.delegate != None: self.delegate.last_keypress = time.time() self._invalidate() nomadnet.NomadNetworkApp.get_shared_instance().ui.loop.set_alarm_in(self.key_timeout, self.kt_event) if self._command_map[key] == urwid.ACTIVATE: item = self.find_item_at_pos(self._cursor_position) if item != None: if isinstance(item, LinkSpec): self.handle_link(item.link_target) elif key == "up": self._cursor_position = 0 return key elif key == "down": self._cursor_position = 0 return key elif key == "right": old = self._cursor_position self._cursor_position = self.find_next_part_pos(self._cursor_position, part_positions) if self._cursor_position == old: self._cursor_position = 0 return "down" self._invalidate() elif key == "left": if self._cursor_position > 0: self._cursor_position = self.find_prev_part_pos(self._cursor_position, part_positions) self._invalidate() else: if self.delegate != None: self.delegate.micron_released_focus() else: return key def kt_event(self, loop, user_data): self._invalidate() def render(self, size, focus=False): now = time.time() c = self.__super.render(size, focus) if focus and (self.delegate == None or now < self.delegate.last_keypress+self.key_timeout): c = urwid.CompositeCanvas(c) c.cursor = self.get_cursor_coords(size) if self.delegate != None: self.peek_link() return c def get_cursor_coords(self, size): if self._cursor_position > len(self.text): return None (maxcol,) = size trans = self.get_line_translation(maxcol) x, y = calc_coords(self.text, trans, self._cursor_position) if maxcol <= x: return None return x, y def mouse_event(self, size, event, button, x, y, focus): if button != 1 or not is_mouse_press(event): return False else: (maxcol,) = size translation = self.get_line_translation(maxcol) line_offset = 0 if self.align == "center": line_offset = translation[y][1][1]-translation[y][0][0] if x < translation[y][0][0]: x = translation[y][0][0] if x > translation[y][1][0]+translation[y][0][0]: x = translation[y][1][0]+translation[y][0][0] elif self.align == "right": line_offset = translation[y][1][1]-translation[y][0][0] if x < translation[y][0][0]: x = translation[y][0][0] else: line_offset = translation[y][0][1] if x > translation[y][0][0]: x = translation[y][0][0] pos = line_offset+x self._cursor_position = pos item = self.find_item_at_pos(self._cursor_position) if item != None: if isinstance(item, LinkSpec): self.handle_link(item.link_target) self._invalidate() self._emit("change") return True