114 lines
4.1 KiB
Python
114 lines
4.1 KiB
Python
import logging
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from gi.repository import Gtk as gtk
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from gi.repository import Pango
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from pygments.formatter import Formatter
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from gajim.plugins.helpers import log
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log = logging.getLogger('gajim.p.syntax_highlight')
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class GTKFormatter(Formatter):
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name = 'GTK Formatter'
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aliases = ['textbuffer', 'gtk']
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filenames = []
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def __init__(self, **options):
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super(GTKFormatter, self).__init__(**options)
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#Formatter.__init__(self, **options)
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self.tags = {}
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self.mark = options.get('start_mark', None)
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@staticmethod
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def create_tag_for_token(ttype, highlighting_style):
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style = highlighting_style.style_for_token(ttype)
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tag = gtk.TextTag.new()
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if 'bgcolor' in style and not style['bgcolor'] is None:
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tag.set_property('background', '#%s' % style['bgcolor'])
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if 'bold' in style and style['bold']:
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tag.set_property('weight', Pango.Weight.BOLD)
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if 'border' in style and not style['border'] is None:
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pass
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if 'color' in style and not style['color'] is None:
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tag.set_property('foreground', '#%s' % style['color'])
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if 'italic' in style and style['italic']:
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tag.set_property('style', Pango.Style.ITALIC)
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if 'mono' in style and not style['mono'] is None:
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tag.set_property('family', 'Monospace')
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tag.set_property('family-set', True)
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if 'roman' in style and not style['roman'] is None:
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pass
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if 'sans' in style and not style['sans'] is None:
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tag.set_property('family', 'Sans')
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tag.set_property('family-set', True)
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if 'underline' in style and style['underline']:
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tag.set_property('underline', 'single')
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return tag
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def get_tag(self, ttype, buf):
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"""
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Creates, stores and returs a tag for a given token type.
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This method ensures that a tag style is created only once.
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Furthermore, the tag will be added to the given Gtk.TextBuffer's tag table.
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"""
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tag = None
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if ttype in self.tags:
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tag = self.tags[ttype]
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else:
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tag = GTKFormatter.create_tag_for_token(ttype, self.style)
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self.tags[ttype] = tag
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buf.get_tag_table().add(tag)
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return tag
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def set_insert_pos_mark(self, mark):
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self.mark = mark
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def format(self, tokensource, outfile):
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if not isinstance(outfile, gtk.TextBuffer) or outfile is None:
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log.warn("Did not get a buffer to format...")
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return
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buf = outfile
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end_iter = buf.get_end_iter()
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start_mark = self.mark
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start_iter = buf.get_iter_at_mark(start_mark) if not start_mark is None \
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else end_iter
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last_ttype = None
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last_start = start_iter
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last_end = buf.get_end_iter()
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last_fixed_start = last_start
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reset = True
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for ttype, value in tokensource:
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search = None
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if last_ttype is not None and ttype != last_ttype:
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tag = self.get_tag(last_ttype, buf)
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buf.apply_tag(tag, last_fixed_start, last_end)
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search = last_end.forward_search(value, gtk.TextSearchFlags.TEXT_ONLY, end_iter)
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reset = True
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else:
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# in case last_ttype is None, i.e. first loop walkthrough:
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# last_start to end_iter is the full code block.
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search = last_start.forward_search(value, gtk.TextSearchFlags.TEXT_ONLY, end_iter)
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# Prepare for next iteration
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last_ttype = ttype
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if search is not None:
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(last_start, last_end) = search
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# If we've found the end of a sequence of similar type tokens or if
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# we are in the first loop iteration, set the fixed point
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if reset:
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last_fixed_start = last_start
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reset = False
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else:
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# Hm... Nothing found, but tags left? Seams there's nothing we
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# can do now.
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break
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