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			213 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			213 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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    SagaHelpGenerator.py
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    ---------------------
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    Date                 : August 2012
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    Copyright            : (C) 2012 by Victor Olaya
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    Email                : volayaf at gmail dot com
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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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"""
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__author__ = 'Victor Olaya'
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__date__ = 'August 2012'
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__copyright__ = '(C) 2012, Victor Olaya'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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import os
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import saga_api as saga
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class Library:
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    def __init__(self, filename):
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        self.sagalib = saga.CSG_Module_Library(saga.CSG_String(str(filename)))
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        if not self.sagalib.is_Valid():
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            raise ImportError(filename)
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        self.libname = filename.split(os.sep)[-1].split(".")[0]
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        if self.libname.startswith("lib"):
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            self.libname = self.libname[3:]
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        self.name = self.sagalib.Get_Name().c_str()
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        self._modules = None
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    def modules(self):
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        if self._modules is not None:
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            return self._modules
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        self._modules = list()
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        for i in range(self.sagalib.Get_Count()):
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            try:
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                self._modules.append(Module(self.sagalib, i))
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            except ImportError:
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                pass
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        return self._modules
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    def __del__(self):
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        self.sagalib.Destroy()
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class Module:
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    def __init__(self, lib, i):
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        self.module = lib.Get_Module(i)
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        if not self.module:
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            raise ImportError("Module #%i is invalid" % i)
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        if self.module.is_Interactive():
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            raise ImportError("Ignoring interactive module")
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        self.name = self.module.Get_Name()
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        self.grid = self.module.is_Grid()
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        if self.module.is_Grid():
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            self.module = lib.Get_Module_Grid(i)
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        self.description = self.module.Get_Description()
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        self.author = self.module.Get_Author()
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        self._parameters = None
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    def parameters(self):
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        if self._parameters is not None:
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            return self._parameters
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        params = list()
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        params.append(self.module.Get_Parameters())
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        for i in range(self.module.Get_Parameters_Count()):
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            params.append(self.module.Get_Parameters(i))
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        self._parameters = list()
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        for p in params:
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            for j in range(p.Get_Count()):
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                try:
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                    self._parameters.append(Parameter(p, j))
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                except:
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                    pass
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        return self._parameters
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class Parameter:
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    def __init__(self, params, i):
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        self.parameter = params.Get_Parameter(i)
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        self.name = self.parameter.Get_Name()
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        self.description = self.parameter.Get_Description()
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        self.typeName = self.parameter.Get_Type_Name()
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        if self.parameter.is_Output():
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            self.typeName = "Output " + self.typeName
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        if self.parameter.is_Input():
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            self.typeName = "Input " + self.typeName
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        typ = self.parameter.Get_Type()
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        self.minimum = None
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        self.maximum = None
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        if (typ == saga.PARAMETER_TYPE_Int) or \
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                (typ == saga.PARAMETER_TYPE_Double) or \
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                (typ == saga.PARAMETER_TYPE_Degree) or \
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                (typ == saga.PARAMETER_TYPE_Range):
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            parameterValue = self.parameter.asValue()
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            if parameterValue.has_Minimum():
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                self.minimum = parameterValue.Get_Minimum()
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            if parameterValue.has_Maximum():
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                self.maximum = parameterValue.Get_Maximum()
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        self.choices = None
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        if typ == saga.PARAMETER_TYPE_Choice:
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            parameterChoice = self.parameter.asChoice()
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            self.choices = [parameterChoice.Get_Item(i) for i in
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                range(parameterChoice.Get_Count())]
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def getLibraryPaths(userPath=None):
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    try:
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        paths = os.environ['MLB_PATH'].split(':')
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    except KeyError:
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        paths = ['/usr/lib/saga/', '/usr/local/lib/saga/']
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        noMLBpath = True
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    if userPath:
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        paths = [userPath] + paths
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    print "Looking for libraries in " + ', '.join(paths)
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    for p in paths:
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        if os.path.exists(p):
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            return [os.path.join(p, fn) for fn in os.listdir(p)]
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    if noMLBpath:
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        print "Warning: MLB_PATH not set."
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    return []
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def qgisizeString(s):
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    try:
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        s = str(s)
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        s = str.replace(s, "Gridd", "Raster")
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        s = str.replace(s, "Grid", "Raster")
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        s = str.replace(s, "gridd", "raster")
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        s = str.replace(s, "grid", "raster")
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    except:
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        # Some unicode characters seem to produce exceptions.
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        # Just ignore those cases.
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        pass
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    return s
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def writeHTML(path, mod):
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    docs = unicode()
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    docs += "<h1 class='module'>%s</h1>\n" % mod.name
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    docs += "<div class='author'>%s</div>\n" % mod.author
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    docs += "<div class='description'>%s</div>\n" \
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             % mod.description.replace('\n', '<br/>\n')
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    if mod.parameters():
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        docs += "<h2>Parameters</h2>\n<dl class='parameters'>\n"
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        for p in mod.parameters():
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            constraints = list()
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            if p.minimum:
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                constraints.append("Minimum: " + str(p.minimum))
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            if p.maximum:
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                constraints.append("Maximum: " + str(p.maximum))
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            if p.choices:
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                constraints.append("Available choices: "
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                                   + ', '.join(p.choices))
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            docs += "\t<dt>%s <div class='type'>%s</div></dt>" \
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                    % (p.name, p.typeName)
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            docs += "<dd>%s <div class='constraints'>%s</div></dd>\n" \
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                    % (p.description, '; '.join(constraints))
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        docs += "</dl>"
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    out = open(path, 'w')
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    out.write('<html>\n<head><link rel="stylesheet" type="text/css" \
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               href="help.css" /></head>\n<body>\n')
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    out.write(docs.encode('utf-8'))
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    out.write('\n</body></html>\n')
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    out.close()
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if __name__ == '__main__':
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    import argparse
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    parser = argparse.ArgumentParser(
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            description='Generate SAGA documentation in HTML form.')
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    parser.add_argument('dest', metavar='DESTINATION', type=str,
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                        help='HTML output path.')
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    parser.add_argument('-l', dest='libpath',
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                        help='Location of SAGA libraries.')
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    args = parser.parse_args()
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    libs = list()
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    paths = getLibraryPaths(args.libpath)
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    for p in paths:
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        try:
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            libs.append(Library(p))
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        except ImportError:
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            pass
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    if not libs:
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        print "No saga libraries found"
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        exit(1)
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    print "%i libraries loaded." % len(libs)
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    for lib in libs:
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        mods = lib.modules()
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        print "%s (%i modules):" % (lib.name, len(mods))
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        for mod in mods:
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            path = args.dest + os.sep \
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                    + mod.name.replace(" ", '').replace("/", '') + ".html"
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            print '\t', mod.name,
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            writeHTML(path, mod)
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            print '\t-> ', path
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