#!/usr/bin/env python
# -*- coding: utf-8 -*-

""" 

Return the depth of the text in the file sample.txt

Run with the command line
	scribus -g -py storydeptharg.py --python-arg-storyfile sample.txt depthtemplate.sla

sample.txt is the text file to measure.
depthtemplate.sla is a document with a single, empty text frame.

Tested with scribus 1.5.0

Author: William Bader

11Aug14 wb initial version
15Dec14 wb get the file name from STORYFILE
19Aug15 wb get the file name from the command line

"""

# check that the script is running from inside scribus

try:
	from scribus import *
    
except ImportError:
	print 'This script only runs from within Scribus.'
	sys.exit(1)

# get the os module

try:
	import os

except ImportError:
	print 'Could not import the os module.'
	sys.exit(1)

# get the sys module

try:
	import sys

except ImportError:
	print 'Could not import the sys module.'
	sys.exit(1)

def main(argv):

	# The first text frame of the current document defines the style

	try:
		storyfile = ""

		i = 1;
		while i < len(argv):
			if argv[i] == "-storyfile":
				storyfile = argv[i+1]
			i = i + 1

		if storyfile == "":
			print 'Warning: -storyfile not given, checking environment'
			storyfile = os.environ['STORYFILE']

	except:
		print 'Error: Pass the story file with the --python-arg-storyfile argument or the STORYFILE environment variable'
		return

	try:
		storytext = open(storyfile, 'r').read()
	except:
		print 'Error: Story file "', storyfile, '" not found.'
		return

	try:
		deselectAll()
		selectObject('Text1')
	except:
		print 'Error: The document does not have an object called Text1.'
		return

	try:
		setText(storytext)
	except:
		print 'Error: The document does not have a text frame.'
		return

	try:
		ov = textOverflows()
		width, depth = getSize()
		if ov:
			baddepth = depth
			gooddepth = 100
		else:
			baddepth = 0
			gooddepth = depth
		while baddepth < gooddepth:
			trydepth = (baddepth + gooddepth) / 2
			sizeObject(width, trydepth)
			tryov = textOverflows()
			if tryov:
				baddepth = trydepth + 0.0001
			else:
				baddepth = baddepth + 0.0001
				gooddepth = trydepth
		sizeObject(width, gooddepth)

		print 'The depth is ', str(gooddepth)
	except:
		print 'Error: not a text frame.'

# start the script

if __name__ == '__main__':
	if haveDoc():
		main(sys.argv)
	else:
		print 'Error: You need to have a document open before you can run this script succesfully.'