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@ -1,11 +1,43 @@
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#!/usr/bin/env python
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import pygtk
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import gobject
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pygtk.require('2.0')
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import gtk
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import pango
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import xml.sax
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class RichTextView(gtk.TextView):
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__gsignals__ = {
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'link-clicked': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_STRING]))
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}
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def __init__(self, rich_buf = None):
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gtk.TextView.__init__(self, rich_buf)
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# self.connect("motion-notify-event", self.__motion_notify_cb)
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self.connect("button-press-event", self.__button_press_cb)
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# def __motion_notify_cb(self, widget, event):
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# if event.is_hint:
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# [x, y, state] = event.window.get_pointer();
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def __button_press_cb(self, widget, event):
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buf = self.get_buffer()
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it = self.get_iter_at_location(int(event.x), int(event.y))
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if it.has_tag(buf.get_tag_table().lookup("link")):
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address_tag = buf.get_tag_table().lookup("link-address")
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address_end = it.copy()
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address_end.backward_to_tag_toggle(address_tag)
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address_start = address_end.copy()
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address_start.backward_to_tag_toggle(address_tag)
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address = buf.get_text(address_start, address_end)
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self.emit("link-clicked", address)
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class RichTextBuffer(gtk.TextBuffer):
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def __init__(self):
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gtk.TextBuffer.__init__(self)
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@ -14,6 +46,11 @@ class RichTextBuffer(gtk.TextBuffer):
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self.__create_tags()
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self.active_tags = []
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def append_link(self, title, address):
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it = self.get_iter_at_mark(self.get_insert())
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self.insert_with_tags_by_name(it, address, "link", "link-address")
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self.insert_with_tags_by_name(it, title, "link")
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def apply_tag(self, tag_name):
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self.active_tags.append(tag_name)
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@ -32,6 +69,13 @@ class RichTextBuffer(gtk.TextBuffer):
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self.remove_tag_by_name(tag_name, start, end)
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def __create_tags(self):
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tag = self.create_tag("link")
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tag.set_property("underline", pango.UNDERLINE_SINGLE)
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tag.set_property("foreground", "#0000FF")
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tag = self.create_tag("link-address")
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tag.set_property("invisible", True)
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tag = self.create_tag("bold")
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tag.set_property("weight", pango.WEIGHT_BOLD)
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@ -137,6 +181,8 @@ class RichTextHandler(xml.sax.handler.ContentHandler):
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if name != "richtext":
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tag = self.serializer.deserialize_element(name, attrs)
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self.tags.append(tag)
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if name == "link":
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self.href = attrs['href']
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def characters(self, data):
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start_it = it = self.buf.get_end_iter()
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@ -146,6 +192,9 @@ class RichTextHandler(xml.sax.handler.ContentHandler):
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for tag in self.tags:
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self.buf.apply_tag_by_name(tag, start_it, it)
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if tag == "link":
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self.buf.insert_with_tags_by_name(start_it, self.href,
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"link", "link-address")
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def endElement(self, name):
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if name != "richtext":
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@ -162,15 +211,25 @@ class RichTextSerializer:
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return "italic"
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elif el_name == "font":
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return "font-size-" + attributes["size"]
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elif el_name == "link":
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return "link"
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else:
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return None
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def serialize_tag_start(self, tag):
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def serialize_tag_start(self, tag, it):
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name = tag.get_property("name")
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if name == "bold":
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return "<bold>"
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elif name == "italic":
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return "<italic>"
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elif name == "link":
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address_tag = self.buf.get_tag_table().lookup("link-address")
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end = it.copy()
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end.forward_to_tag_toggle(address_tag)
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address = self.buf.get_text(it, end)
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return "<link " + "href=\"" + address + "\">"
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elif name == "link-address":
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return ""
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elif name.startswith("font-size-"):
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tag_name = name.replace("font-size-", "", 1)
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return "<font size=\"" + tag_name + "\">"
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@ -179,16 +238,22 @@ class RichTextSerializer:
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def serialize_tag_end(self, tag):
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name = tag.get_property("name")
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if tag.get_property("name") == "bold":
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if name == "bold":
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return "</bold>"
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elif tag.get_property("name") == "italic":
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elif name == "italic":
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return "</italic>"
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elif name == "link":
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return "</link>"
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elif name == "link-address":
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return ""
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elif name.startswith("font-size-"):
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return "</font>"
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else:
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return "</unknown>"
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def serialize(self, buf):
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self.buf = buf
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xml = "<richtext>"
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next_it = buf.get_start_iter()
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@ -207,11 +272,15 @@ class RichTextSerializer:
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break
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tags_to_reopen.append(open_tag)
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for tag in tags_to_reopen + it.get_toggled_tags(True):
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for tag in tags_to_reopen:
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self._open_tags.append(tag)
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xml += self.serialize_tag_start(tag)
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xml += self.serialize_tag_start(tag, it)
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xml += buf.get_text(it, next_it)
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for tag in it.get_toggled_tags(True):
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self._open_tags.append(tag)
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xml += self.serialize_tag_start(tag, it)
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xml += buf.get_text(it, next_it, False)
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if next_it.is_end():
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self._open_tags.reverse()
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@ -232,6 +301,9 @@ class RichTextSerializer:
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def test_quit(window, rich_buf):
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print RichTextSerializer().serialize(rich_buf)
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gtk.main_quit()
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def link_clicked(view, address):
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print "Link clicked " + address
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if __name__ == "__main__":
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window = gtk.Window()
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@ -246,12 +318,13 @@ if __name__ == "__main__":
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xml_string += "<bold><italic>Test</italic>one</bold>\n"
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xml_string += "<bold><italic>Test two</italic></bold>"
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xml_string += "<font size=\"xx-small\">Test three</font>"
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xml_string += "<link href=\"http://www.gnome.org\">Test link</link>"
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xml_string += "</richtext>"
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RichTextSerializer().deserialize(xml_string, rich_buf)
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view = gtk.TextView(rich_buf)
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view = RichTextView(rich_buf)
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view.connect("link-clicked", link_clicked)
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vbox.pack_start(view)
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view.show()
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