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ed2ba4e16808ba679da94db96beac42b99410db9
nmap/zenmap/zenmapGUI/higwidgets/higspinner.py
david ed2ba4e168 Copy nping, nsock, nbase, zenmap, ncat from their homes in /. 
If you have trouble updating after this revision you need to follow
these instructions. You have probably just seen an error like this:

svn: URL 'svn://svn.insecure.org/nping' of existing directory 'nping'
does not match expected URL 'svn://svn.insecure.org/nmap/nping'

This is caused by the replacement of SVN externals.

Here's what you need to do. First, save any local changes you might have
in the nping, nsock, nbase, ncat, and zenmap directories. (For example
by running "cd nping; svn diff > ../nping.diff".) If you don't have any
local changes you can skip this step.

Then run these commands:

rm -rf nping/ nsock/ nbase/ ncat/ zenmap/
svn update
svn cleanup

If all else fails, you can just delete your whole working directory and
check out anew:

svn co --username guest --password "" svn://svn.insecure.org/nmap

There may be further discussion in the mailing list thread at
http://seclists.org/nmap-dev/2011/q4/303.
2011-11-16 21:49:44 +00:00

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# ***********************IMPORTANT NMAP LICENSE TERMS************************
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# ***************************************************************************/
"""
higwidgets/higspinner.py
a pygtk spinner, based on the epiphany/nautilus implementation
"""
__all__ = ['HIGSpinner']
import os
import gtk
import gobject
from gtkutils import gobject_register
class HIGSpinnerImages:
def __init__(self):
"""This class holds list of GDK Pixbuffers.
- static_pixbufs is used for multiple static pixbuffers
- self.animated_pixbufs is used for the pixbuffers that make up the animation
"""
dprint('HIGSpinnerImages::__init__')
# The Nautilus/Epiphany implementation uses a single "rest/quiescent"
# static pixbuffer. We'd rather allow the developer to choose from
# multiple static states, such as "done" or "failed".
# Index it by a name like that.
self.static_pixbufs = {}
# We should have a default rest pixbuf, set it with set_rest_pixbuf()
self.rest_pixbuf = None
# This is a list of pixbufs to be used on the animation
# For now, we're only implementing a single animation. Inconsistent!
self.animated_pixbufs = []
def add_static_pixbuf(self, name, pixbuf, default_on_rest=False):
"""Add a static pixbuf.
If this is the first one, make it the default pixbuffer on rest.
The user can make some other pixbuf the new default on rest, by setting
default_on_rest to True.
"""
dprint('HIGSpinnerImages::add_static_pixbuf')
self.static_pixbufs[name] = pixbuf
if (len(self.static_pixbufs) == 1) or default_on_rest:
self.set_rest_pixbuf(name)
def add_animated_pixbuf(self, pixbuf):
dprint('HIGSpinnerImages::add_animated_pixbuf')
self.animated_pixbufs.append(pixbuf)
def set_rest_pixbuf(self, name):
"""Sets the pixbuf that will be used on the default, 'rest' state. """
dprint('HIGSpinnerImages::set_rest_pixbuf')
if not self.static_pixbufs.has_key(name):
raise StaticPixbufNotFound
# self.rest_pixbuf holds the *real* pixbuf, not it's name
self.rest_pixbuf = self.static_pixbufs[name]
def set_size(self, width, height):
"""Sets the size of eache pixbuf (static and animated)"""
new_animated = []
for p in self.animated_pixbufs:
new_animated.append(p.scale_simple(width, height,
gtk.gdk.INTERP_BILINEAR))
self.animated_pixbufs = new_animated
for k in self.static_pixbufs:
self.static_pixbufs[k] = self.static_pixbufs[k].\
scale_simple(width,
height,
gtk.gdk.INTERP_BILINEAR)
self.rest_pixbuf = self.rest_pixbuf.\
scale_simple(width,
height,
gtk.gdk.INTERP_BILINEAR)
self.images_width = width
self.images_height = height
class HIGSpinnerCache:
"""This hols a copy of the images used on the HIGSpinners instances."""
def __init__(self):
dprint('HIGSpinnerCache::__init__')
# Our own instance of a HIGSpinnerImages
self.spinner_images = HIGSpinnerImages()
# These are on Private member in the C implementation
self.icon_theme = gtk.IconTheme()
self.originals = None
self.images = None
# We might have access to a "default" animated icon.
# For example, if we're on a GNOME desktop, and have the (default)
# "gnome-icon-theme" package installed, we might have access
# to "gnome-spinner". Check it before using, though
if (self.icon_theme.lookup_icon("gnome-spinner", -1, 0)):
self.default_animated_icon_name = "gnome-spinner"
else:
self.default_animated_icon_name = None
def load_animated_from_lookup(self, icon_name=None):
"""Loads an animated icon by doing a lookup on the icon theme."""
# If user do not choose a icon_name, use the default one
if icon_name == None:
icon_name = self.default_animated_icon_name
# Even the default one (now on icon_name) might not be available
if icon_name == None:
raise AnimatedIconNotFound
# Try to lookup the icon
icon_info = self.icon_theme.lookup_icon(icon_name, -1, 0)
# Even if icon_name exists, it might not be found by lookup
if icon_info == None:
raise AnimatedIconNotFound
# Base size is, according to PyGTK docs:
# "a size for the icon that was specified by the icon theme creator,
# This may be different than the actual size of image."
# Ouch! We are acting on blind faith here...
size = icon_info.get_base_size()
# NOTE: If the icon is a builtin, it will not have a filename, see:
# http://www.pygtk.org/pygtk2reference/class-gtkicontheme.html
# But, we are not using the gtk.ICON_LOOKUP_USE_BUILTIN flag, nor does
# GTK+ has a builtin animation, so we are safe ;-)
filename = icon_info.get_filename()
# Now that we have a filename, call load_animated_from_filename()
self.load_animated_from_filename(filename, size)
def load_animated_from_filename(self, filename, size):
# grid_pixbuf is a pixbuf that holds the entire
grid_pixbuf = gtk.gdk.pixbuf_new_from_file(filename)
grid_width = grid_pixbuf.get_width()
grid_height = grid_pixbuf.get_height()
for x in range(0, grid_width, size):
for y in range(0, grid_height, size):
self.spinner_images.add_animated_pixbuf(\
self.__extract_frame(grid_pixbuf, x, y, size, size))
def load_static_from_lookup(self, icon_name="gnome-spinner-rest",
key_name=None):
icon_info = self.icon_theme.lookup_icon(icon_name, -1, 0)
size = icon_info.get_base_size()
filename = icon_info.get_filename()
# Now that we have a filename, call load_static_from_filename()
self.load_static_from_filename(filename)
def load_static_from_filename(self, filename, key_name=None):
icon_pixbuf = gtk.gdk.pixbuf_new_from_file(filename)
if key_name == None:
key_name = filename.split(".")[0]
self.spinner_images.add_static_pixbuf(key_name, icon_pixbuf)
def __extract_frame(self, pixbuf, x, y, w, h):
"""Cuts a sub pixbuffer, usually a frame of an animation.
- pixbuf is the complete pixbuf, from which a frame will be cut off
- x/y are the position
- w (width) is the is the number of pixels to move right
- h (height) is the is the number of pixels to move down
"""
if (x + w > pixbuf.get_width()) or (y + h > pixbuf.get_height()):
raise PixbufSmallerThanRequiredError
return pixbuf.subpixbuf(x, y, w, h)
def _write_animated_pixbuf_to_files(self, path_format, image_format):
"""Writes image files from self.spinner_images.animated_pixbufs
- path_format should be a format string with one occurrence of a
string substitution, such as '/tmp/animation_%s.png'
- image_format can be either 'png' or 'jpeg'
"""
counter = 0
for i in self.spinner_images.animated_pixbufs:
i.save(path_format % counter, "png")
counter += 1
def _write_static_pixbuf_to_file(self, key_name, path_name, image_format):
self.spinner_images.static_pixbufs[key_name].save(path_name,
image_format)
class HIGSpinner(gtk.EventBox):
"""Simple spinner, such as the one found in webbrowsers and file managers.
You can construct it with the optional parameters:
* images, a list of images that will make up the animation
* width, the width that will be set for the images
* height, the height that will be set for the images
"""
__gsignals__ = { 'expose-event' : 'override',
'size-request' : 'override' }
def __init__(self):
gtk.EventBox.__init__(self)
#self.set_events(self.get_events())
# This holds a GDK Graphic Context
self.gc = None
# These are sane defaults, but should really come from the images
self.images_width = 32
self.images_height = 32
# Timeout set to 100 miliseconds per frame, just as the
# Nautilus/Epiphany implementation
self.timeout = 120
# Initialize a cache for ouselves
self.cache = HIGSpinnerCache()
self.cache.load_static_from_lookup()
self.cache.load_animated_from_lookup()
# timer_task it the gobject.timeout_add identifier (when the animation
# is in progress, and __bump_frame is being continually called). If the
# spinner is static, timer_task is 0
self.timer_task = 0
# animated_pixbuf_index is a index on
self.animated_pixbuf_index = 0
# current_pixbuf is initially the default rest_pixbuf
self.current_pixbuf = self.cache.spinner_images.rest_pixbuf
def __bump_frame(self):
"""This function moves the animated frame to the next one, or, if it's
currently the last one, back to the first one"""
animated_list = self.cache.spinner_images.animated_pixbufs
if self.animated_pixbuf_index == (len(animated_list) - 1):
# back to the first one
self.animated_pixbuf_index = 0
else:
# go the next one
self.animated_pixbuf_index += 1
self.queue_draw()
return True
def __select_pixbuf(self):
"""This selects either a rest pixbuf or a animation frame based on the
status of timer_task."""
if self.timer_task == 0:
self.current_pixbuf = self.cache.spinner_images.rest_pixbuf
else:
self.current_pixbuf = self.cache.spinner_images.animated_pixbufs\
[self.animated_pixbuf_index]
def start(self):
"""Starts the animation"""
if self.timer_task == 0:
self.timer_task = gobject.timeout_add(self.timeout,
self.__bump_frame)
def pause(self):
"""Pauses the animation"""
if self.timer_task != 0:
gobject.source_remove(self.timer_task)
self.timer_task = 0
self.queue_draw()
def stop(self):
"""Stops the animation
Do the same stuff as pause, but returns the animation to the beggining."""
self.pause()
self.animated_pixbuf_index = 0
def set_speed(speed_in_milliseconds):
self.timeout = speed_in_milliseconds
self.pause()
self.start()
def do_expose_event(self, event):
#self.chain(event)
if self.cache.spinner_images.rest_pixbuf == None:
raise RestPixbufNotFound
self.__select_pixbuf()
width = self.current_pixbuf.get_width()
height = self.current_pixbuf.get_height()
x_offset = (self.allocation.width - width) / 2
y_offset = (self.allocation.height - height) / 2
pix_area = gtk.gdk.Rectangle(x_offset + self.allocation.x,
y_offset + self.allocation.y,
width, height)
dest = event.area.intersect(pix_area)
# If a graphic context doesn't not exist yet, create one
if self.gc == None:
self.gc = gtk.gdk.GC(self.window)
#gc = self.gc
self.window.draw_pixbuf(self.gc,
self.current_pixbuf,
dest.x - x_offset - self.allocation.x,
dest.y - y_offset - self.allocation.y,
dest.x, dest.y,
dest.width, dest.height)
def do_size_request(self, requisition):
# http://www.pygtk.org/pygtk2reference/class-gtkrequisition.html
# FIXME, this should really come from the pixbuf size + margins
requisition.width = self.cache.spinner_images.images_width
requisition.height = self.cache.spinner_images.images_height
gobject_register(HIGSpinner)
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