#!/usr/bin/python
''' 
'''

import gtk.gdk
import gtk
import glib
class MyRect():
    def init(self, x = 0, y = 0, w = 0, h = 0):
        self.x = x
        self.y = y
        self.w = w
        self.h = h
    def init(self, x, y):
        self.x = min(int(x.x), int(y.x))
        self.y = min(int(x.y), int(y.y))
        self.w = abs(int(y.x - x.x))
        self.h = abs(int(y.y - x.y))
class MyPair():
    def init(self, x = 0, y = 0):
        self.x = x
        self.y = y
class MyPoint(MyPair):
    def init(self, x = 0, y = 0):
        MyPair.init(self, x, y)
class MySize(MyPair):
    def init(self, w = 0, h = 0):
        MyPair.init(self, x, y)
class MyCapture():
    (event_enter, event_leave) = (0, 1)
    def init(self):
        pass

def capture(self):
    pass

def handleEvent(self, event):
    if event == event_enter:
        enterSnap()
    elif event == event_leave:
        leaveSnap()

def enterSnap(self):
    pass

def leaveSnap(self):
    pass

def snap(self, window = None, rect = None, name = None):
    pass



class MyCaptureGtk(MyCapture):
    def init(self):
        MyCapture.init(self)
        self.window = gtk.Window()
        self.window.set_default_size(1,1)
        self.window.connect("button-press-event", self.button_press_cb)
        self.first = None
        self.second = None
        self.window.show()

    #self.window.set_events(gtk.gdk.BUTTON_PRESS_MASK)

def getWindow(self):
    return self.window

def button_press_cb(self, widget, event):
    #print "type is %d" % event.type
    if event.type == gtk.gdk.BUTTON_PRESS:
        if event.button == 1: #left button
            print "(%d, %d), (%d, %d), button is %d" % (event.x_root, event.y_root, event.x, event.y, event.button)
            if not self.first:
                self.first = MyPoint(event.x_root, event.y_root)
            else:
                self.second = MyPoint(event.x_root, event.y_root)
                self.snap(None, MyRect(self.first, self.second))
                self.first = None
        elif event.button == 3: #right button
            self.uncapture()
        else:
            pass

def uncapture(self):
    if self.first:
        print "cancel"
        self.first = None
    else:
        print "exit now"
        gtk.gdk.pointer_ungrab()
        gtk.mainquit()

def capture(self, time = 0L):
    cursor = gtk.gdk.Cursor(gtk.gdk.display_get_default(), gtk.gdk.CROSSHAIR)
    ret = gtk.gdk.pointer_grab(self.window.window, True,
                gtk.gdk.BUTTON_PRESS_MASK,
                None, cursor, time)
    if ret == gtk.gdk.GRAB_SUCCESS:
        print "left button start, end, right button cancel/exit"
    else:
        print "failed to capture %d, (viewable %d),(frozen %d), (already %d)" \
          % (ret, gtk.gdk.GRAB_NOT_VIEWABLE, gtk.gdk.GRAB_FROZEN, gtk.gdk.GRAB_ALREADY_GRABBED)

def snap(self, window = None, rect = None, name = None):
    w = window
    if not window:
        #w = gtk.gdk.get_default_root_window()
        d = gtk.gdk.display_get_default()
        w = d.get_default_screen().get_root_window()

    r = rect
    if not r:
        sz = w.get_size()
        r = MyRect(0, 0, sz[0], sz[1])
    print "The size of the window is (%d, %d, %d, %d)" % (r.x, r.y, r.w, r.h)

    n = name
    if not n:
        n = "screenshot.png"

    buf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB,False,8, r.w, r.h)
    buf = buf.get_from_drawable(w,w.get_colormap(), r.x, r.y, 0, 0, r.w, r.h)
    if (buf != None):
        buf.save(n, "png")
        print "Screenshot saved to %s." % n
    else:
        print "Unable to get the screenshot."


def timeout(data):

#print "timeout"
data.capture()


if name == 'main':
    cap = MyCaptureGtk()
    w = cap.getWindow()
    w.show()
    glib.timeout_add_seconds(1, timeout, cap)
cap.snap()

gtk.main()

</pre>