102 lines
3.4 KiB
Python
102 lines
3.4 KiB
Python
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import sys, os
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import vtkmodules
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from vtkmodules.vtkCommonCore import vtkVersion
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def vtkLoadPythonTkWidgets(interp):
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"""vtkLoadPythonTkWidgets(interp) -- load vtk-tk widget extensions
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This is a mess of mixed python and tcl code that searches for the
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shared object file that contains the python-vtk-tk widgets. Both
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the python path and the tcl path are searched.
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"""
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modname = 'vtkRenderingTk'
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VTK_VERSIONED_INSTALL = "ON"
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VTK_CUSTOM_LIBRARY_VERSION = "9.5"
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if VTK_VERSIONED_INSTALL in ("0", "OFF", "NO", "FALSE", "N"):
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name = modname
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elif VTK_CUSTOM_LIBRARY_VERSION:
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name = '%s-%s' % (modname,VTK_CUSTOM_LIBRARY_VERSION)
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else:
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X = vtkVersion.GetVTKMajorVersion()
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Y = vtkVersion.GetVTKMinorVersion()
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name = '%s-%d.%d' % (modname,X,Y)
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pkgname = modname.lower().capitalize()
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# find out if the module is already loaded
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loadedpkgs = interp.call('info', 'loaded')
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found = False
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try:
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# check for result returned as a string
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found = (loadedpkgs.find(pkgname) >= 0)
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except AttributeError:
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# check for result returned as nested tuples
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for pkgtuple in loadedpkgs:
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found |= (pkgname in pkgtuple)
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if found:
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return
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# create the platform-dependent file name
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prefix = ''
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if sys.platform == 'cygwin':
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prefix = 'cyg'
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elif os.name == 'posix':
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prefix = 'lib'
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extension = interp.call('info', 'sharedlibextension')
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filename = prefix+name+extension
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# create an list of paths to search
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vtkmodules_dir = os.path.dirname(vtkmodules.__file__)
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pathlist = [vtkmodules_dir]
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# a likely relative path for linux
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if sys.platform == 'linux':
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package_dir = os.path.dirname(vtkmodules_dir)
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python_dir = os.path.dirname(package_dir)
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if os.path.basename(python_dir).startswith('python'):
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lib_dir = os.path.dirname(python_dir)
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if os.path.basename(lib_dir).startswith('lib'):
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pathlist.append(lib_dir)
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# add tcl paths, ensure that {} is handled properly
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try:
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auto_paths = interp.getvar('auto_path').split()
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except AttributeError:
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auto_paths = interp.getvar('auto_path')
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for path in auto_paths:
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prev = str(pathlist[-1])
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try:
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# try block needed when one uses Gordon McMillan's Python
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# Installer.
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if len(prev) > 0 and prev[0] == '{' and prev[-1] != '}':
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pathlist[-1] = prev+' '+path
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else:
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pathlist.append(path)
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except AttributeError:
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pass
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# a common installation path
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if os.name == 'posix':
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pathlist.append('/usr/local/lib')
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# attempt to load
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for path in pathlist:
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try:
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# If the path object is not str, it means that it is a
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# Tkinter path object.
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if not isinstance(path, str):
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path = path.string
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# try block needed when one uses Gordon McMillan's Python
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# Installer.
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if len(path) > 0 and path[0] == '{' and path[-1] == '}':
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path = path[1:-1]
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fullpath = os.path.join(path, filename)
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except AttributeError:
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pass
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if ' ' in fullpath:
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fullpath = '{'+fullpath+'}'
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if interp.eval('catch {load '+fullpath+' '+pkgname+'}') == '0':
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return
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# re-generate the error
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interp.call('load', filename, pkgname)
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