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#!/usr/bin/env python
# -*- coding: UTF-8 -*-
# This script shows the use of pygtksourceview2 module, the python wrapper
# of gtksourceview2 C library.
# It has been directly translated from test-widget.c
#
# Copyright (C) 2004 - Iñigo Serna <inigoserna@telefonica.net>
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
import os, os.path
import sys
import gtk
import gtksourceview2 as gtksourceview
import gio
import pango
import gobject
######################################################################
##### global vars
windows = [] # this list contains all view windows
MARK_TYPE_1 = 'one'
MARK_TYPE_2 = 'two'
DATADIR = '/usr/share'
######################################################################
##### error dialog
def error_dialog(parent, msg):
dialog = gtk.MessageDialog(parent,
gtk.DIALOG_DESTROY_WITH_PARENT,
gtk.MESSAGE_ERROR,
gtk.BUTTONS_OK,
msg)
dialog.run()
dialog.destroy()
######################################################################
##### remove all source marks
def remove_all_marks(buffer):
begin, end = buffer.get_bounds()
marks = buffer.remove_source_marks(begin, end)
######################################################################
##### load file
def load_file(buffer, path):
buffer.begin_not_undoable_action()
# TODO: use g_io_channel when pygtk supports it
try:
txt = open(path).read()
except:
return False
buffer.set_text(txt)
buffer.set_data('filename', path)
buffer.end_not_undoable_action()
buffer.set_modified(False)
buffer.place_cursor(buffer.get_start_iter())
return True
######################################################################
##### Note this function is silly and wrong, because it ignores mime
##### parent types and subtypes.
def get_language_for_mime_type(mime):
lang_manager = gtksourceview.language_manager_get_default()
lang_ids = lang_manager.get_language_ids()
for i in lang_ids:
lang = lang_manager.get_language(i)
for m in lang.get_mime_types():
if m == mime:
return lang
return None
######################################################################
##### buffer creation
def open_file(buffer, filename):
# get the new language for the file mimetype
if os.path.isabs(filename):
path = filename
else:
path = os.path.abspath(filename)
f = gio.File(path)
path = f.get_path()
info = f.query_info("*")
mime_type = info.get_content_type()
language = None
if mime_type:
language = get_language_for_mime_type(mime_type)
if not language:
print 'No language found for mime type "%s"' % mime_type
else:
print 'Couldn\'t get mime type for file "%s"' % filename
buffer.set_language(language)
buffer.set_highlight_syntax(True)
remove_all_marks(buffer)
load_file(buffer, path) # TODO: check return
return True
######################################################################
##### Action callbacks
def numbers_toggled_cb(action, sourceview):
sourceview.set_show_line_numbers(action.get_active())
def marks_toggled_cb(action, sourceview):
sourceview.set_show_line_marks(action.get_active())
def margin_toggled_cb(action, sourceview):
sourceview.set_show_right_margin(action.get_active())
def auto_indent_toggled_cb(action, sourceview):
sourceview.set_auto_indent(action.get_active())
def insert_spaces_toggled_cb(action, sourceview):
sourceview.set_insert_spaces_instead_of_tabs(action.get_active())
def tabs_toggled_cb(action, action2, sourceview):
sourceview.set_tab_width(action.get_current_value())
def new_view_cb(action, sourceview):
window = create_view_window(sourceview.get_buffer(), sourceview)
window.set_default_size(400, 400)
window.show()
######################################################################
##### Buffer action callbacks
def open_file_cb(action, buffer):
chooser = gtk.FileChooserDialog('Open file...', None,
gtk.FILE_CHOOSER_ACTION_OPEN,
(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
gtk.STOCK_OPEN, gtk.RESPONSE_OK))
response = chooser.run()
if response == gtk.RESPONSE_OK:
filename = chooser.get_filename()
if filename:
open_file(buffer, filename)
chooser.destroy()
def update_cursor_position(buffer, view):
tabwidth = view.get_tab_width()
pos_label = view.get_data('pos_label')
iter = buffer.get_iter_at_mark(buffer.get_insert())
nchars = iter.get_offset()
row = iter.get_line() + 1
start = iter
start.set_line_offset(0)
col = 0
while not start.equal(iter):
if start.get_char == '\t':
col += (tabwidth - (col % tabwidth))
else:
col += 1
start = start.forward_char()
pos_label.set_text('char: %d, line: %d, column: %d' % (nchars, row, col))
def move_cursor_cb (buffer, cursoriter, mark, view):
update_cursor_position(buffer, view)
def window_deleted_cb(widget, ev, view):
if windows[0] == widget:
gtk.main_quit()
else:
# remove window from list
windows.remove(widget)
# we return False since we want the window destroyed
return False
return True
def button_press_cb(view, ev):
buffer = view.get_buffer()
if not view.get_show_line_marks():
return False
# check that the click was on the left gutter
if ev.window == view.get_window(gtk.TEXT_WINDOW_LEFT):
if ev.button == 1:
mark_type = MARK_TYPE_1
else:
mark_type = MARK_TYPE_2
x_buf, y_buf = view.window_to_buffer_coords(gtk.TEXT_WINDOW_LEFT,
int(ev.x), int(ev.y))
# get line bounds
line_start = view.get_line_at_y(y_buf)[0]
# get the markers already in the line
mark_list = buffer.get_source_marks_at_line(line_start.get_line(),
mark_type)
if mark_list:
# just take the first and delete it
buffer.delete_mark (mark_list[0])
else:
# no mark found: create one
buffer.create_source_mark (None, mark_type, line_start)
return False
######################################################################
##### Actions & UI definition
buffer_actions = [
('Open', gtk.STOCK_OPEN, '_Open', '<control>O', 'Open a file', open_file_cb),
('Quit', gtk.STOCK_QUIT, '_Quit', '<control>Q', 'Exit the application', gtk.main_quit)
]
view_actions = [
('FileMenu', None, '_File'),
('ViewMenu', None, '_View'),
('NewView', gtk.STOCK_NEW, '_New View', None, 'Create a new view of the file', new_view_cb),
('TabWidth', None, '_Tab Width')
]
toggle_actions = [
('ShowNumbers', None, 'Show _Line Numbers', None, 'Toggle visibility of line numbers in the left margin', numbers_toggled_cb, False),
('ShowMarks', None, 'Show Line _Marks', None, 'Toggle visibility of marks in the left margin', marks_toggled_cb, False),
('ShowMargin', None, 'Show M_argin', None, 'Toggle visibility of right margin indicator', margin_toggled_cb, False),
('AutoIndent', None, 'Enable _Auto Indent', None, 'Toggle automatic auto indentation of text', auto_indent_toggled_cb, False),
('InsertSpaces', None, 'Insert _Spaces Instead of Tabs', None, 'Whether to insert space characters when inserting tabulations', insert_spaces_toggled_cb, False)
]
radio_actions = [
('TabWidth4', None, '4', None, 'Set tabulation width to 4 spaces', 4),
('TabWidth6', None, '6', None, 'Set tabulation width to 6 spaces', 6),
('TabWidth8', None, '8', None, 'Set tabulation width to 8 spaces', 8),
('TabWidth10', None, '10', None, 'Set tabulation width to 10 spaces', 10),
('TabWidth12', None, '12', None, 'Set tabulation width to 12 spaces', 12)
]
view_ui_description = """
<ui>
<menubar name='MainMenu'>
<menu action='ViewMenu'>
<menuitem action='NewView'/>
<separator/>
<menuitem action='ShowNumbers'/>
<menuitem action='ShowMarks'/>
<menuitem action='ShowMargin'/>
<separator/>
<menuitem action='AutoIndent'/>
<menuitem action='InsertSpaces'/>
<separator/>
<menu action='TabWidth'>
<menuitem action='TabWidth4'/>
<menuitem action='TabWidth6'/>
<menuitem action='TabWidth8'/>
<menuitem action='TabWidth10'/>
<menuitem action='TabWidth12'/>
</menu>
</menu>
</menubar>
</ui>
"""
buffer_ui_description = """
<ui>
<menubar name='MainMenu'>
<menu action='FileMenu'>
<menuitem action='Open'/>
<separator/>
<menuitem action='Quit'/>
</menu>
<menu action='ViewMenu'>
</menu>
</menubar>
</ui>
"""
class TestProvider(gobject.GObject, gtksourceview.CompletionProvider):
def __init__(self, name):
gobject.GObject.__init__(self)
self.name = name
def do_get_name(self):
return self.name
def do_get_proposals(self):
return [
gtksourceview.CompletionItem("Proposal 1", None, None),
gtksourceview.CompletionItem("Proposal 2", None, None),
gtksourceview.CompletionItem("Proposal 3", None, None),
]
gobject.type_register(TestProvider)
######################################################################
##### initialize completion
def initialize_completion(view):
completion = view.get_completion()
completion.add_provider(TestProvider('Provider 1'))
completion.add_provider(TestProvider('Provider 2'))
######################################################################
##### create view window
def create_view_window(buffer, sourceview = None):
# window
window = gtk.Window(gtk.WINDOW_TOPLEVEL)
window.set_border_width(0)
window.set_title('PyGtkSourceView Demo')
windows.append(window) # this list contains all view windows
# view
view = gtksourceview.View(buffer)
buffer.connect('mark-set', move_cursor_cb, view)
buffer.connect('changed', update_cursor_position, view)
view.connect('button-press-event', button_press_cb)
window.connect('delete-event', window_deleted_cb, view)
initialize_completion(view)
# action group and UI manager
action_group = gtk.ActionGroup('ViewActions')
action_group.add_actions(view_actions, view)
action_group.add_toggle_actions(toggle_actions, view)
action_group.add_radio_actions(radio_actions, -1, tabs_toggled_cb, view)
ui_manager = gtk.UIManager()
ui_manager.insert_action_group(action_group, 0)
# save a reference to the ui manager in the window for later use
window.set_data('ui_manager', ui_manager)
accel_group = ui_manager.get_accel_group()
window.add_accel_group(accel_group)
ui_manager.add_ui_from_string(view_ui_description)
# misc widgets
vbox = gtk.VBox(0, False)
sw = gtk.ScrolledWindow()
sw.set_shadow_type(gtk.SHADOW_IN)
pos_label = gtk.Label('Position')
view.set_data('pos_label', pos_label)
menu = ui_manager.get_widget('/MainMenu')
# layout widgets
window.add(vbox)
vbox.pack_start(menu, False, False, 0)
vbox.pack_start(sw, True, True, 0)
sw.add(view)
vbox.pack_start(pos_label, False, False, 0)
# setup view
font_desc = pango.FontDescription('monospace')
if font_desc:
view.modify_font(font_desc)
# change view attributes to match those of sourceview
if sourceview:
action = action_group.get_action('ShowNumbers')
action.set_active(sourceview.get_show_line_numbers())
action = action_group.get_action('ShowMarks')
action.set_active(sourceview.get_show_line_marks())
action = action_group.get_action('ShowMargin')
action.set_active(sourceview.get_show_right_margin())
action = action_group.get_action('AutoIndent')
action.set_active(sourceview.get_auto_indent())
action = action_group.get_action('InsertSpaces')
action.set_active(sourceview.get_insert_spaces_instead_of_tabs())
action = action_group.get_action('TabWidth%d' % sourceview.get_tab_width())
if action:
action.set_active(True)
# add source mark pixbufs
pixbuf = gtk.gdk.pixbuf_new_from_file(os.path.join(DATADIR,
'pixmaps/apple-green.png'))
if pixbuf:
view.set_mark_category_pixbuf (MARK_TYPE_1, pixbuf)
view.set_mark_category_priority (MARK_TYPE_1, 1)
else:
print 'could not load mark 1 image. Spurious messages might get triggered'
pixbuf = gtk.gdk.pixbuf_new_from_file(os.path.join(DATADIR,
'pixmaps/apple-red.png'))
if pixbuf:
view.set_mark_category_pixbuf (MARK_TYPE_2, pixbuf)
view.set_mark_category_priority (MARK_TYPE_2, 2)
else:
print 'could not load mark 2 image. Spurious messages might get triggered'
vbox.show_all()
return window
######################################################################
##### create main window
def create_main_window(buffer):
window = create_view_window(buffer)
ui_manager = window.get_data('ui_manager')
# buffer action group
action_group = gtk.ActionGroup('BufferActions')
action_group.add_actions(buffer_actions, buffer)
ui_manager.insert_action_group(action_group, 1)
# merge buffer ui
ui_manager.add_ui_from_string(buffer_ui_description)
# preselect menu checkitems
groups = ui_manager.get_action_groups()
# retrieve the view action group at position 0 in the list
action_group = groups[0]
action = action_group.get_action('ShowNumbers')
action.set_active(True)
action = action_group.get_action('ShowMarks')
action.set_active(True)
action = action_group.get_action('ShowMargin')
action.set_active(True)
action = action_group.get_action('AutoIndent')
action.set_active(True)
action = action_group.get_action('InsertSpaces')
action.set_active(True)
action = action_group.get_action('TabWidth8')
action.set_active(True)
return window
######################################################################
##### main
def main(args = []):
# create buffer
buffer = gtksourceview.Buffer()
mgr = gtksourceview.style_scheme_manager_get_default()
style_scheme = mgr.get_scheme('classic')
if style_scheme:
buffer.set_style_scheme(style_scheme)
# parse arguments
if len(args) > 2:
open_file(buffer, args[1])
else:
open_file(buffer, args[0])
# create first window
window = create_main_window(buffer)
window.set_default_size(500, 500)
window.show()
# main loop
gtk.main()
if __name__ == '__main__':
if '--debug' in sys.argv:
import pdb
pdb.run('main(sys.argv)')
else:
main(sys.argv)
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