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# Copyright (c) 2001, 2002 by Intevation GmbH |
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# Authors: |
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# Jan-Oliver Wagner <[email protected]> |
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# Bernhard Herzog <[email protected]> |
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# |
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# This program is free software under the GPL (>=v2) |
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# Read the file COPYING coming with Thuban for details. |
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""" |
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Functions to save a session to a file |
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""" |
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__version__ = "$Revision$" |
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import os |
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import string |
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from Thuban.Lib.fileutil import relative_filename |
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def escape(data): |
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"""Escape &, \", ', <, and > in a string of data. |
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""" |
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data = string.replace(data, "&", "&") |
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data = string.replace(data, "<", "<") |
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data = string.replace(data, ">", ">") |
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data = string.replace(data, '"', """) |
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data = string.replace(data, "'", "'") |
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return data |
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def save_session(session, filename): |
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"""Save the session session to the file given by filename""" |
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dir = os.path.dirname(filename) |
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file = open(filename, 'w') |
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write = file.write |
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write('<?xml version="1.0" encoding="UTF-8"?>\n') |
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write('<!DOCTYPE session SYSTEM "thuban.dtd">\n') |
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write('<session title="%s">\n' % escape(session.title)) |
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for map in session.Maps(): |
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write('\t<map title="%s">\n' % escape(map.title)) |
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if map.projection and len(map.projection.params) > 0: |
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write('\t\t<projection>\n') |
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for param in map.projection.params: |
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write('\t\t\t<parameter value="%s"/>\n' % escape(param)) |
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write('\t\t</projection>\n') |
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for layer in map.Layers(): |
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fill = layer.fill |
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if fill is None: |
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fill = "None" |
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else: |
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fill = fill.hex() |
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stroke = layer.stroke |
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if stroke is None: |
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stroke = "None" |
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else: |
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stroke = stroke.hex() |
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write(('\t\t<layer title="%s" filename="%s"' |
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' fill="%s" stroke="%s" stroke_width="%d"/>\n') % |
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(escape(layer.title), |
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escape(relative_filename(dir, layer.filename)), |
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fill, stroke, layer.stroke_width)) |
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labels = map.LabelLayer().Labels() |
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if labels: |
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write('\t\t<labellayer>\n') |
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for label in labels: |
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write(('\t\t\t<label x="%g" y="%g" text="%s"' |
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' halign="%s" valign="%s"/>\n') |
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% (label.x, label.y, label.text, label.halign, |
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label.valign)) |
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write('\t\t</labellayer>\n') |
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write('\t</map>\n') |
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write('</session>\n') |
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# after a successful save consider the session unmodified. |
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session.UnsetModified() |
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