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109 lines
3.7 KiB
Python
109 lines
3.7 KiB
Python
#!/usr/bin/env python3
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"""
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/***************************************************************************
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symbol_xml2db.py
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-------------------
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begin : 26-5-2012
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copyright : (C) 2012 by Arunmozhi
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email : aruntheguy at gmail dot com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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The script creates a sqlite3 Db for storing the symbols which will be
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shipped with QGIS by default. It then converts symbols and colorramps
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in the symbology_ng_style.xml to the database table entries.
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"""
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import sqlite3
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from xml.dom.minidom import parse, parseString
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xmlfile = "../resources/symbology-style.xml"
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dbfile = "../resources/symbology-style.db"
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_symbol = "CREATE TABLE symbol("\
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"id INTEGER PRIMARY KEY,"\
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"name TEXT UNIQUE,"\
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"xml TEXT,"\
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"favorite INTEGER)"
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_colorramp = "CREATE TABLE colorramp("\
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"id INTEGER PRIMARY KEY,"\
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"name TEXT UNIQUE,"\
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"xml TEXT,"\
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"favorite INTEGER)"
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_tag = "CREATE TABLE tag("\
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"id INTEGER PRIMARY KEY,"\
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"name TEXT)"
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_tagmap = "CREATE TABLE tagmap("\
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"tag_id INTEGER NOT NULL,"\
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"symbol_id INTEGER)"
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_ctagmap = "CREATE TABLE ctagmap("\
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"tag_id INTEGER NOT NULL,"\
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"colorramp_id INTEGER)"
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_smartgroup = "CREATE TABLE smartgroup("\
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"id INTEGER PRIMARY KEY,"\
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"name TEXT,"\
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"xml TEXT)"
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create_tables = [_symbol, _colorramp, _tag, _tagmap, _ctagmap, _smartgroup]
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# Create the DB with required Schema
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conn = sqlite3.connect(dbfile)
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c = conn.cursor()
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print("Creating tables in the Database\n")
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for table in create_tables:
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try:
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c.execute(table)
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print(table)
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except sqlite3.OperationalError as e:
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pass
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conn.commit()
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# parse the XML file & write symbol into DB
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dom = parse(xmlfile)
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symbols = dom.getElementsByTagName("symbol")
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for symbol in symbols:
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symbol_name = symbol.getAttribute("name")
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symbol_favorite = symbol.getAttribute("favorite")
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if not symbol_favorite:
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symbol_favorite = 0
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if '@' in symbol_name:
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parts = symbol_name.split('@')
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parent_name = parts[1]
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layerno = int(parts[2])
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c.execute("SELECT xml FROM symbol WHERE name=(?)", (parent_name,))
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symdom = parseString(c.fetchone()[0]).getElementsByTagName('symbol')[0]
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symdom.getElementsByTagName("layer")[layerno].appendChild(symbol)
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c.execute("UPDATE symbol SET xml=? WHERE name=?", (symdom.toxml(), parent_name))
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else:
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c.execute("INSERT INTO symbol VALUES (?,?,?,?)", (None, symbol_name, symbol.toxml(), symbol_favorite))
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conn.commit()
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# ColorRamps
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colorramps = dom.getElementsByTagName("colorramp")
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for ramp in colorramps:
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ramp_name = ramp.getAttribute("name")
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symbol_favorite = symbol.getAttribute("favorite")
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if not symbol_favorite:
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symbol_favorite = 0
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c.execute("INSERT INTO colorramp VALUES (?,?,?,?)", (None, ramp_name, ramp.toxml(), symbol_favorite))
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conn.commit()
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# Finally close the sqlite cursor
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c.close()
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