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'''A simple text editor for Sugar
Written mostly by Nate Theis
Some GTK code borrowed from Pippy
'''
from groupthink import sugar_tools, gtk_tools
from gettext import gettext as _
import gtk, pango
import time
import gtksourceview2 as gtksourceview
from sugar.graphics import style
from sugar.activity.activity import EditToolbar
from sugar.activity.widgets import ActivityToolbar
from sugar.graphics.toolbarbox import ToolbarBox
from sugar.graphics.toolbarbox import ToolbarButton
from sugar.activity.widgets import StopButton
import mdnames
from sugar.graphics.xocolor import XoColor
from sugar.graphics.icon import Icon
from sugar.bundle.activitybundle import ActivityBundle
def _create_activity_icon(metadata):
'''Get the icon given an activity'''
if metadata.get('icon-color', ''):
color = XoColor(metadata['icon-color'])
else:
client = gconf.client_get_default()
color = XoColor(client.get_string(
'/desktop/sugar/user/color'))
from sugar.activity.activity import get_bundle_path
bundle = ActivityBundle(get_bundle_path())
icon = Icon(file=bundle.get_icon(), xo_color=color)
return icon
class ActivityToolbarButton(ToolbarButton):
#thanks, sugar activity guide
def __init__(self, activity, **kwargs):
toolbar = ActivityToolbar(activity,
orientation_left=True)
toolbar.stop.hide()
toolbar.keep.hide()
ToolbarButton.__init__(self, page=toolbar,
**kwargs)
icon = _create_activity_icon(activity.metadata)
self.set_icon_widget(icon)
icon.show()
class EditActivity(sugar_tools.GroupActivity):
'''A text editor for Sugar
pylint says I need a docstring. Here you go.
'''
message_preparing = _("Loading...")
message_joining = _("Joining shared activity...")
message_loading = _("Reading journal entry...")
def checkts(self):
'''Check the timestamp
If someone's modified our file in an external editor,
we should reload the contents
'''
mtime = self.metadata[mdnames.sugartimestamp_md]
etime = self.metadata[mdnames.cloudtimestamp_md]
return mtime > etime
def __init__(self, handle):
'''We want to set up the buffer et al. early on
sure there's early_setup, but that's not early enough
'''
self.buffer = gtksourceview.Buffer()
self.refresh_buffer = False
self.text_view = gtksourceview.View(self.buffer)
self.scrollwindow = gtk.ScrolledWindow()
self.scrollwindow.add(self.text_view)
sugar_tools.GroupActivity.__init__(self, handle)
def fix_mimetype(self):
'''We must have a mimetype. Sometimes, we don't (when we get launched
newly.) This fixes that.'''
if self.metadata[mdnames.mimetype_md] == '':
self.metadata[mdnames.mimetype_md] = "text/plain"
#we MUST have a mimetype
def setup_toolbar(self):
'''Setup the top toolbar. Groupthink needs some work here.'''
toolbar_box = ToolbarBox()
activity_button = ActivityToolbarButton(self)
toolbar_box.toolbar.insert(activity_button, 0)
activity_button.show()
self.edit_toolbar = EditToolbar()
edit_toolbar_button = ToolbarButton(
page=self.edit_toolbar,
icon_name='toolbar-edit')
self.edit_toolbar.show()
toolbar_box.toolbar.insert(edit_toolbar_button, -1)
edit_toolbar_button.show()
self.edit_toolbar.undo.connect('clicked', self.undobutton_cb)
self.edit_toolbar.redo.connect('clicked', self.redobutton_cb)
self.edit_toolbar.copy.connect('clicked', self.copybutton_cb)
self.edit_toolbar.paste.connect('clicked', self.pastebutton_cb)
separator = gtk.SeparatorToolItem()
separator.props.draw = False
separator.set_expand(True)
toolbar_box.toolbar.insert(separator, -1)
separator.show()
stop_button = StopButton(self)
stop_button.props.accelerator = '<Ctrl><Shift>Q'
toolbar_box.toolbar.insert(stop_button, -1)
stop_button.show()
self.set_toolbar_box(toolbar_box)
toolbar_box.show()
def initialize_display(self):
'''Set up GTK and friends'''
self.fix_mimetype()
self.cloud.shared_buffer = gtk_tools.TextBufferSharePoint(self.buffer)
self.setup_toolbar()
#Some graphics code borrowed from Pippy
lang_manager = gtksourceview.language_manager_get_default()
if hasattr(lang_manager, 'list_languages'):
langs = lang_manager.list_languages()
else:
lang_ids = lang_manager.get_language_ids()
langs = [lang_manager.get_language(lang_id) for lang_id in lang_ids]
for lang in langs:
for mtype in lang.get_mime_types():
if mtype == self.metadata[mdnames.mimetype_md]:
self.buffer.set_language(lang)
break
self.text_view.set_editable(True)
self.text_view.set_cursor_visible(True)
if self.metadata[mdnames.mimetype_md] == "text/plain":
self.text_view.set_show_line_numbers(False)
self.text_view.set_wrap_mode(gtk.WRAP_WORD)
font = pango.FontDescription("Bitstream Vera Sans " +
str(style.FONT_SIZE))
else:
if hasattr(self.buffer,'set_highlight'):
self.buffer.set_highlight(True)
else:
self.buffer.set_highlight_syntax(True)
self.text_view.set_show_line_numbers(True)
self.text_view.set_wrap_mode(gtk.WRAP_CHAR)
self.text_view.set_insert_spaces_instead_of_tabs(True)
self.text_view.set_tab_width(2)
self.text_view.set_auto_indent(True)
font = pango.FontDescription("Monospace " +
str(style.FONT_SIZE))
self.text_view.modify_font(font)
if self.refresh_buffer:
#see load_from_journal()
self.buffer.begin_not_undoable_action()
self.buffer.set_text(self.refresh_buffer)
self.buffer.end_not_undoable_action()
self.text_view.show()
#Return the main widget. our parents take care of GTK stuff
return self.scrollwindow
def save_to_journal(self, filename, cloudstring):
'''Saves to the journal.
We use metadata magic to keep the collab. stuff'''
self.metadata[mdnames.cloudstring_md] = cloudstring
#Also write to file:
fhandle = open(filename, "w")
bounds = self.buffer.get_bounds()
text = self.buffer.get_text(bounds[0], bounds[1])
fhandle.write(text)
fhandle.close()
self.fix_mimetype()
#We can do full-text search on all Edit documents, yay
self.metadata[mdnames.contents_md] = text
#If we edit the file in another way, we need to reload the contents
#we fudge the timestamp forwards by 5 seconds
#mmmm, fudge
self.metadata[mdnames.cloudtimestamp_md] = time.clock()+5
def load_from_journal(self, filename):
'''Load the file. Duh.'''
if mdnames.cloudstring_md in self.metadata:
if self.checkts():
#if we were edited in another program
#we need to reload the text
#setting self.refresh_buffer makes us do that
text = open(filename, "r").read() #yay hackish one-line read
self.refresh_buffer = text
#File has been saved with Edit, thus
#load the fancy collaboration data
#instead of just the text
return self.metadata[mdnames.cloudstring_md]
else:
text = open(filename, "r").read() #yay hackish one-line read
self.buffer.set_text(text)
return None
def when_shared(self):
self._edit_toolbar.undo.set_sensitive(False)
self._edit_toolbar.redo.set_sensitive(False)
def undobutton_cb(self, button):
if self.buffer.can_undo():
self.buffer.undo()
def redobutton_cb(self, button):
global text_buffer
if self.buffer.can_redo():
self.buffer.redo()
def copybutton_cb(self, button):
self.buffer.copy_clipboard(gtk.Clipboard())
def pastebutton_cb(self, button):
self.buffer.paste_clipboard(gtk.Clipboard(), None, True)
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