demoshelp.py File Reference

Display demo help. More...

Go to the source code of this file.

Namespaces
	demoshelp

Detailed Description

Display demo help.

import os
from ROOT import TCanvas, TPaveText
from ROOT import gROOT



chelp = TCanvas( 'chelp', 'Help to run demos', 200, 10, 700, 500 )

welcome = TPaveText( .1, .8, .9, .97 )
welcome.AddText( 'Welcome to the ROOT demos' )
welcome.SetTextFont( 32 )
welcome.SetTextColor( 4 )
welcome.SetFillColor( 24 )
welcome.Draw()

hdemo = TPaveText( .05, .05, .95, .7 )
hdemo.SetTextAlign( 12 )
hdemo.SetTextFont( 52 )

text = """- Run demo hsimple.py first. Then in any order
- Click left mouse button to execute one demo
- Click right mouse button to see the title of the demo
- Click on 'Close Bar' to exit from the demo menu
- Select 'File/Print' to print a Postscript view of the canvas
- You can execute a demo with the mouse or type commands
- During the demo (try on this canvas) you can:
  .... Use left button to move/grow/etc objects
  .... Use middle button to pop overlapping objects
  .... Use right button to get an object sensitive pop-up
 """
for line in text.split( os.linesep ):
   hdemo.AddText( line )

hdemo.SetAllWith( '....', 'color', 2 )
hdemo.SetAllWith( '....', 'font', 72 )
hdemo.SetAllWith( '....', 'size', 0.04 )

hdemo.Draw()
chelp.Update()

Author

Wim Lavrijsen

Definition in file demoshelp.py.