On Sep 3, 6:47 pm, "Edward K. Ream" <[email protected]> wrote:
> The overall situation is clear:
Indeed it is. I can now understand the docstring :-)
Indeed, the template provides the "raw materials" for the callouts.
The user supplies the desired combination and location of callouts,
and the original screenshot, and the result is a new screenshots with
callouts applied.
At the code level, the fundamental operation is the xpath call. For
example::
object = template.xpath("//*...@id='co_text_1]")
This searches the xml file for an xml element whose id is 'co_text_1.
The //*[ syntax is a bit boggling at first, but once one sees the
pattern everything becomes clear. As I said in an earlier post, the
start of the InkCall class defines the objects that should be defined
in the template. Here is the list the actual list.
ids = [
"co_bc_1", # 1 digit black circle
"co_bc_2", # 2 digit black circle
"co_bc_text_1", # text holder for 1 digit black circle
"co_bc_text_2", # text holder for 2 digit black circle
"co_frame", # frame for speech balloon callout
"co_g_bc_1", # group for 1 digit black circle
"co_g_bc_2", # group for 2 digit black circle
"co_g_co", # group for speech balloon callout
"co_shot", # image for screen shot
"co_text_holder", # text holder for speech balloon callout
]
We are going to be seeing xpath statements involving these, so it's
good to notice the patterns in the names: co_<type>_id.
Naturally, these names can be "computed" using Python string
operations. For example:
part = dict([(g, template.xpath("//*...@id='%s']"%g)[0])
for g in 'co_g_co', 'co_g_bc_1', 'co_g_bc_2'])
This is much less horrifying now that we know the patterns for a)
xpath and b) object names.
So that's about it for the code ;-) It's not too difficult once one
sees the patterns. Of course, only Terry knows where the bodies are
hidden....
Now that I understand the code in detail, it's time to put it to
work...
EKR
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