import os,sys
from PyQt4 import QtCore
    
def getCCP4I2Dir(up=1):
	target = os.path.join(os.path.realpath(sys.argv[0]),"..")
	abstarget = os.path.abspath(target)
        splittarget = abstarget.split()
        if splittarget.count('ccp4i2'):
          splittarget.reverse()
          up = splittarget.index('ccp4i2')
        while up>0:
          abstarget = os.path.dirname(abstarget)
          up = up -1
        return abstarget

if __name__ == '__main__':

        top_path = getCCP4I2Dir()
	print 'Running CCP4i2 browser from: '+top_path
	print 'Python '+sys.version
	print ' '
        execfile(os.path.join(top_path,'utils','startup.py'))
	setupEnvironment()
	setupPythonpath(top=top_path,mode='qtgui')
	setupGuiPluginsPath(top=top_path)
	from CCP4Modules import QTAPPLICATION
	app = QTAPPLICATION(graphical=True)

	defEd = startDefEd()

	sys.exit(app.exec_())