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- Committer: Jono Bacon
- Date: 2009-12-31 04:35:06 UTC
- Revision ID: jono@ubuntu.com-20091231043506-y5tdq5ahrv9fpecz
Added PyGTKSourceView example.
- files added:
- pygtksourceview
- files modified:
- CATEGORIES
added
removed
pygtksourceview/test-widget.py
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#!/usr/bin/env python
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# -*- coding: UTF-8 -*-
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#
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# [SNIPPET_NAME: GtkSourceView Example]
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# [SNIPPET_CATEGORIES: PyGTK, PyGTKSourceView]
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# [SNIPPET_DESCRIPTION: Demonstrates using Actions with a gtk.Action and gtk.AccelGroup]
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#
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# This script shows the use of pygtksourceview module, the python wrapper
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# of gtksourceview C library.
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# It has been directly translated from test-widget.c
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#
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# Copyright (C) 2004 - Iñigo Serna <inigoserna@telefonica.net>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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import os, os.path
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import sys
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import pygtk
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pygtk.require ('2.0')
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import gtk
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if gtk.pygtk_version < (2,3,93):
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print "PyGtk 2.3.93 or later required for this example"
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raise SystemExit
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import gtksourceview
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import gnome.vfs
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import pango
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import gnomeprint.ui
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######################################################################
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##### global vars
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windows = [] # this list contains all view windows
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MARKER_TYPE_1 = 'one'
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MARKER_TYPE_2 = 'two'
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DATADIR = '/usr/share'
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######################################################################
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##### error dialog
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def error_dialog(parent, msg):
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dialog = gtk.MessageDialog(parent,
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gtk.DIALOG_DESTROY_WITH_PARENT,
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gtk.MESSAGE_ERROR,
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gtk.BUTTONS_OK,
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msg)
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dialog.run()
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dialog.destroy()
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######################################################################
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##### remove all markers
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def remove_all_markers(buffer):
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begin, end = buffer.get_bounds()
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markers = buffer.get_markers_in_region(begin, end)
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map(buffer.delete_marker, markers)
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######################################################################
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##### load file
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def load_file(buffer, uri):
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buffer.begin_not_undoable_action()
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# TODO: use g_io_channel when pygtk supports it
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try:
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txt = open(uri.path).read()
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except:
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return False
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buffer.set_text(txt)
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buffer.set_data('filename', uri.path)
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buffer.end_not_undoable_action()
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buffer.set_modified(False)
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buffer.place_cursor(buffer.get_start_iter())
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return True
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######################################################################
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##### buffer creation
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def open_file(buffer, filename):
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# get the new language for the file mimetype
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manager = buffer.get_data('languages-manager')
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if os.path.isabs(filename):
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path = filename
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else:
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path = os.path.abspath(filename)
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uri = gnome.vfs.URI(path)
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mime_type = gnome.vfs.get_mime_type(path) # needs ASCII filename, not URI
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if mime_type:
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language = manager.get_language_from_mime_type(mime_type)
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if language:
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buffer.set_highlight(True)
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buffer.set_language(language)
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else:
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print 'No language found for mime type "%s"' % mime_type
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buffer.set_highlight(False)
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else:
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print 'Couldn\'t get mime type for file "%s"' % filename
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buffer.set_highlight(False)
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remove_all_markers(buffer)
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load_file(buffer, uri) # TODO: check return
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return True
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######################################################################
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##### Printing callbacks
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def page_cb(job, *args):
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percent = 100 * job.get_page() / job.get_page_count()
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print 'Printing %.2f%% \r' % percent,
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def finished_cb(job, *args):
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print
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gjob = job.get_print_job()
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preview = gnomeprint.ui.JobPreview(gjob, 'PyGtkSourceView Demo Print Preview')
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preview.show()
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######################################################################
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##### Action callbacks
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def numbers_toggled_cb(action, sourceview):
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sourceview.set_show_line_numbers(action.get_active())
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def markers_toggled_cb(action, sourceview):
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sourceview.set_show_line_markers(action.get_active())
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def margin_toggled_cb(action, sourceview):
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sourceview.set_show_margin(action.get_active())
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def auto_indent_toggled_cb(action, sourceview):
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sourceview.set_auto_indent(action.get_active())
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def insert_spaces_toggled_cb(action, sourceview):
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sourceview.set_insert_spaces_instead_of_tabs(action.get_active())
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def tabs_toggled_cb(action, action2, sourceview):
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sourceview.set_tabs_width(action.get_current_value())
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def new_view_cb(action, sourceview):
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window = create_view_window(sourceview.get_buffer(), sourceview)
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window.set_default_size(400, 400)
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window.show()
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def print_preview_cb(action, sourceview):
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buffer = sourceview.get_buffer()
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job = gtksourceview.SourcePrintJob()
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job.setup_from_view(sourceview)
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job.set_wrap_mode(gtk.WRAP_CHAR)
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job.set_highlight(True)
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job.set_print_numbers(5)
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job.set_header_format('Printed on %A', None, '%F', False)
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filename = buffer.get_data('filename')
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job.set_footer_format('%T', filename, 'Page %N/%Q', True)
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job.set_print_header(True)
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job.set_print_footer(True)
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start, end = buffer.get_bounds()
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if job.print_range_async(start, end):
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job.connect('begin_page', page_cb)
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job.connect('finished', finished_cb)
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else:
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print 'Async print failed'
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######################################################################
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##### Buffer action callbacks
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def open_file_cb(action, buffer):
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chooser = gtk.FileChooserDialog('Open file...', None,
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gtk.FILE_CHOOSER_ACTION_OPEN,
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(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL,
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gtk.STOCK_OPEN, gtk.RESPONSE_OK))
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response = chooser.run()
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if response == gtk.RESPONSE_OK:
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filename = chooser.get_filename()
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if filename:
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open_file(buffer, filename)
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chooser.destroy()
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def update_cursor_position(buffer, view):
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tabwidth = view.get_tabs_width()
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pos_label = view.get_data('pos_label')
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iter = buffer.get_iter_at_mark(buffer.get_insert())
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nchars = iter.get_offset()
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row = iter.get_line() + 1
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start = iter
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start.set_line_offset(0)
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col = 0
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while not start.equal(iter):
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if start.get_char == '\t':
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col += (tabwidth - (col % tabwidth))
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else:
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col += 1
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start = start.forward_char()
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pos_label.set_text('char: %d, line: %d, column: %d' % (nchars, row, col))
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def move_cursor_cb (buffer, cursoriter, mark, view):
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update_cursor_position(buffer, view)
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def window_deleted_cb(widget, ev, view):
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if windows[0] == widget:
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gtk.main_quit()
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else:
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# remove window from list
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windows.remove(widget)
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# we return False since we want the window destroyed
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return False
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return True
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def button_press_cb(view, ev):
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buffer = view.get_buffer()
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if not view.get_show_line_markers():
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return False
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# check that the click was on the left gutter
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if ev.window == view.get_window(gtk.TEXT_WINDOW_LEFT):
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if ev.button == 1:
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marker_type = MARKER_TYPE_1
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else:
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marker_type = MARKER_TYPE_2
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x_buf, y_buf = view.window_to_buffer_coords(gtk.TEXT_WINDOW_LEFT,
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int(ev.x), int(ev.y))
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# get line bounds
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line_start = view.get_line_at_y(y_buf)[0]
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line_end = line_start.copy()
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line_end.forward_to_line_end()
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# get the markers already in the line
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marker_list = buffer.get_markers_in_region(line_start, line_end)
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# search for the marker corresponding to the button pressed
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for m in marker_list:
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if m.get_marker_type() == marker_type:
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marker = m
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break
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else:
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marker = None
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if marker:
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# a marker was found, so delete it
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buffer.delete_marker(marker)
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else:
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# no marker found, create one
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marker = buffer.create_marker(None, marker_type, line_start)
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return False
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######################################################################
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##### Actions & UI definition
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buffer_actions = [
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('Open', gtk.STOCK_OPEN, '_Open', '<control>O', 'Open a file', open_file_cb),
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('Quit', gtk.STOCK_QUIT, '_Quit', '<control>Q', 'Exit the application', gtk.main_quit)
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]
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view_actions = [
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('FileMenu', None, '_File'),
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('ViewMenu', None, '_View'),
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('PrintPreview', gtk.STOCK_PRINT, '_Print Preview', '<control>P', 'Preview printing of the file', print_preview_cb),
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('NewView', gtk.STOCK_NEW, '_New View', None, 'Create a new view of the file', new_view_cb),
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('TabsWidth', None, '_Tabs Width')
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]
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toggle_actions = [
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('ShowNumbers', None, 'Show _Line Numbers', None, 'Toggle visibility of line numbers in the left margin', numbers_toggled_cb, False),
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('ShowMarkers', None, 'Show _Markers', None, 'Toggle visibility of markers in the left margin', markers_toggled_cb, False),
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('ShowMargin', None, 'Show M_argin', None, 'Toggle visibility of right margin indicator', margin_toggled_cb, False),
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('AutoIndent', None, 'Enable _Auto Indent', None, 'Toggle automatic auto indentation of text', auto_indent_toggled_cb, False),
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('InsertSpaces', None, 'Insert _Spaces Instead of Tabs', None, 'Whether to insert space characters when inserting tabulations', insert_spaces_toggled_cb, False)
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]
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radio_actions = [
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('TabsWidth4', None, '4', None, 'Set tabulation width to 4 spaces', 4),
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('TabsWidth6', None, '6', None, 'Set tabulation width to 6 spaces', 6),
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('TabsWidth8', None, '8', None, 'Set tabulation width to 8 spaces', 8),
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('TabsWidth10', None, '10', None, 'Set tabulation width to 10 spaces', 10),
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('TabsWidth12', None, '12', None, 'Set tabulation width to 12 spaces', 12)
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]
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view_ui_description = """
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<ui>
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<menubar name='MainMenu'>
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<menu action='FileMenu'>
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<menuitem action='PrintPreview'/>
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</menu>
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<menu action='ViewMenu'>
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<menuitem action='NewView'/>
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<separator/>
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<menuitem action='ShowNumbers'/>
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<menuitem action='ShowMarkers'/>
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<menuitem action='ShowMargin'/>
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<separator/>
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<menuitem action='AutoIndent'/>
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<menuitem action='InsertSpaces'/>
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<separator/>
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<menu action='TabsWidth'>
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<menuitem action='TabsWidth4'/>
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<menuitem action='TabsWidth6'/>
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<menuitem action='TabsWidth8'/>
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<menuitem action='TabsWidth10'/>
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<menuitem action='TabsWidth12'/>
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</menu>
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</menu>
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</menubar>
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</ui>
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"""
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buffer_ui_description = """
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<ui>
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<menubar name='MainMenu'>
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<menu action='FileMenu'>
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<menuitem action='Open'/>
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<separator/>
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<menuitem action='Quit'/>
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</menu>
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<menu action='ViewMenu'>
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</menu>
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</menubar>
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</ui>
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"""
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######################################################################
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##### create view window
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def create_view_window(buffer, sourceview = None):
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# window
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window = gtk.Window(gtk.WINDOW_TOPLEVEL)
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window.set_border_width(0)
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window.set_title('PyGtkSourceView Demo')
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windows.append(window) # this list contains all view windows
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# view
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view = gtksourceview.SourceView(buffer)
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buffer.connect('mark_set', move_cursor_cb, view)
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buffer.connect('changed', update_cursor_position, view)
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view.connect('button-press-event', button_press_cb)
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window.connect('delete-event', window_deleted_cb, view)
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# action group and UI manager
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action_group = gtk.ActionGroup('ViewActions')
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action_group.add_actions(view_actions, view)
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action_group.add_toggle_actions(toggle_actions, view)
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action_group.add_radio_actions(radio_actions, -1, tabs_toggled_cb, view)
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ui_manager = gtk.UIManager()
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ui_manager.insert_action_group(action_group, 0)
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# save a reference to the ui manager in the window for later use
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window.set_data('ui_manager', ui_manager)
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accel_group = ui_manager.get_accel_group()
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window.add_accel_group(accel_group)
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ui_manager.add_ui_from_string(view_ui_description)
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# misc widgets
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vbox = gtk.VBox(0, False)
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sw = gtk.ScrolledWindow()
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sw.set_shadow_type(gtk.SHADOW_IN)
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pos_label = gtk.Label('Position')
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view.set_data('pos_label', pos_label)
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menu = ui_manager.get_widget('/MainMenu')
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# layout widgets
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window.add(vbox)
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vbox.pack_start(menu, False, False, 0)
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vbox.pack_start(sw, True, True, 0)
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sw.add(view)
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vbox.pack_start(pos_label, False, False, 0)
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# setup view
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font_desc = pango.FontDescription('monospace 10')
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if font_desc:
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view.modify_font(font_desc)
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# change view attributes to match those of sourceview
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if sourceview:
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action = action_group.get_action('ShowNumbers')
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action.set_active(sourceview.get_show_line_numbers())
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action = action_group.get_action('ShowMarkers')
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action.set_active(sourceview.get_show_line_markers())
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action = action_group.get_action('ShowMargin')
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action.set_active(sourceview.get_margin())
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action = action_group.get_action('AutoIndent')
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action.set_active(sourceview.get_auto_indent())
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action = action_group.get_action('InsertSpaces')
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action.set_active(sourceview.get_insert_spaces_instead_of_tabs())
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action = action_group.get_action('TabsWidth%d' % sourceview.get_tabs_width())
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if action:
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action.set_active(True)
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# add marker pixbufs
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pixbuf = gtk.gdk.pixbuf_new_from_file(os.path.join(DATADIR,
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'pixmaps/apple-green.png'))
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if pixbuf:
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view.set_marker_pixbuf(MARKER_TYPE_1, pixbuf)
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else:
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print 'could not load marker 1 image. Spurious messages might get triggered'
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pixbuf = gtk.gdk.pixbuf_new_from_file(os.path.join(DATADIR,
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'pixmaps/apple-red.png'))
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if pixbuf:
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view.set_marker_pixbuf(MARKER_TYPE_2, pixbuf)
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else:
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print 'could not load marker 2 image. Spurious messages might get triggered'
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vbox.show_all()
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return window
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######################################################################
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##### create main window
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def create_main_window(buffer):
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window = create_view_window(buffer)
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ui_manager = window.get_data('ui_manager')
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# buffer action group
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action_group = gtk.ActionGroup('BufferActions')
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action_group.add_actions(buffer_actions, buffer)
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ui_manager.insert_action_group(action_group, 1)
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# merge buffer ui
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ui_manager.add_ui_from_string(buffer_ui_description)
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# preselect menu checkitems
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groups = ui_manager.get_action_groups()
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# retrieve the view action group at position 0 in the list
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action_group = groups[0]
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action = action_group.get_action('ShowNumbers')
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action.set_active(True)
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action = action_group.get_action('ShowMarkers')
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action.set_active(True)
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action = action_group.get_action('ShowMargin')
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action.set_active(True)
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action = action_group.get_action('AutoIndent')
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action.set_active(True)
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action = action_group.get_action('InsertSpaces')
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action.set_active(True)
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action = action_group.get_action('TabsWidth8')
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action.set_active(True)
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return window
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######################################################################
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##### main
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def main(args = []):
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# create buffer
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lm = gtksourceview.SourceLanguagesManager()
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buffer = gtksourceview.SourceBuffer()
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buffer.set_data('languages-manager', lm)
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# parse arguments
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if len(args) > 2:
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open_file(buffer, args[1])
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else:
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open_file(buffer, args[0])
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# create first window
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window = create_main_window(buffer)
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window.set_default_size(500, 500)
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window.show()
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# main loop
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gtk.main()
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if __name__ == '__main__':
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if '--debug' in sys.argv:
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import pdb
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pdb.run('main(sys.argv)')
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else:
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main(sys.argv)
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