A bandwidth optimised online display for CCDs.
A special python library must be installed in order to use this
feature.
| Method Summary |
| |
__init__(self,
devicename,
drawingareawidget,
brightnesswidget,
contrastwidget,
gammawidget) |
| BooleanType
|
_area_expose_cb(self,
area,
event)
A callback method called by GTK in order to ask the image to redraw
itself |
| FloatType
|
_get_normed_value(self,
widget)
Return the value of the GTK.Range object, scaled to be in the range from 0 to
1 |
| |
_scrollbar_changed(self,
widget)
|
| NoneType
|
blob_received(self,
blob)
called when an indiblob with format
.ccdpreview has been received from the server. |
| NoneType
|
disable(self)
Disables data reception |
| NoneType
|
on_indiobject_changed(self,
vector)
called when the INumberVector containing the parameters of the preview
has been received for the server |
| NoneType
|
reset(self)
Clear all buffers, and enable ccdpreview |
| NoneType
|
update(self)
Update brightness contrast gamma, given by the GTK.Range widgets and
queue the image for redrawing |
| Inherited from indi_custom_vector_handler |
| NoneType
|
configure(self,
vector)
This hander method will be called only once. |
indivector
|
get_vector(self)
Returns the indivector this handler is associated
with. |
| Inherited from gui_indi_object_handler |
| NoneType
|
on_blocked(self,
*args)
The method _blocking_on_gui_changed is called by the
GUI, in order to inform us, that a widget has changed. |
| NoneType
|
on_gui_changed(self,
*args)
Important: Implement your GUI callback here but link you GUI
callback signal to {_blocking_on_gui_changed} (see on_blocked if you want to know why) |
| NoneType
|
set_bidirectional(self)
installs callbacks of the GUI that will call the function _blocking_on_gui_changed if the user
changes the the GUI object associated with this gui_indi_object_handler . |
| NoneType
|
unset_bidirectional(self)
uninstalls the GUI callback installed with set_bidirectional (see set_bidirectional for details) |
| NoneType
|
_blocking_on_gui_changed(self,
*args)
Called by the GUI whenever the widget associated with this handler has
changed. |
| Inherited from _blocking_indi_object_handler |
| NoneType
|
_block(self)
activates the block. |
| BooleanType
|
_is_blocked(self)
Return True if blocked , False otherwise |
| NoneType
|
_unblock(self)
releases the block. |
| NoneType
|
indi_object_change_notify(self,
*args)
This method activates the block, calls the method on_indiobject_changed (It is called by bigindiclient.process_events each time an
INDI object has been received) |
| Instance Variable Summary |
| Gtk.DrawingArea |
area: A GTK Drawingarea widget |
| GTK.Range |
brightnesswidget: A GTK Range to adjust the brightness |
| IntType |
byteorder: The Byteorder |
| IntType |
bytesperpixel: The number of Bytes per pixel |
| GTK.Range |
contrastwidget: A GTK Range to adjust the contrast |
| BooleanType |
enabled: The preview will not be updated if set to False |
| GTK.Range |
gammawidget: A GTK Range to adjust gamma |
| array |
greybuf: a buffer containing the current image in up to 32 bit greyscale |
| IntType |
greypos: The writing position within greybuf |
| IntType |
maxgooddata: The maximum value which is still an accepted measurement within the
limits of the CCD chip |
| array |
pbuf: a RGB buffer containing the current image |
| IntType |
previewheight: The height of the preview |
| IntType |
previewwidth: The width of the preview |
| Inherited from indi_custom_vector_handler |
| StringType |
devicename: The name of the device this handler is associated with |
indiclient |
indi: The indiclient instance calling this handler (will be set by
indiclient automatically) |
| StringType |
type: The type of the handler |
| StringType |
vectorname: The name of the indivector this handler is associated with |
| Inherited from _blocking_indi_object_handler |
| IntType |
_blocked: A counter incremented each time the _block method is called and decremented by
_unblock, >0 means blocked, ==0 mean
unblocked |