Download or view guitoolstest.frink in plain text format
// Small test of creating a GUI in Frink
// Helper function from the guitools package.
// NOTE: This method of creating GUIs is old, non-portable, and obsolete.
// It is not even compiled into Frink distributions anymore. This file
// is only here for historical purposes.
// c will be an instance of a FrinkCanvas object which is just a specialization
// of java.awt.Canvas which we can set our onPaint method.
c = createCanvasFrame[]
f=c.getParent[]
f.setSize[200,200]
f.setTitle["Resize me!"]
f.show[]
// This is a paint function that will get called when Java calls onPaint
// to refresh the GUI. It's just an anonymous function that takes one
// parameter g (which will be a java.awt.Graphics object that we draw to.)
// The other calls are methods of java.awt.Canvas
ff = {|g|
black = staticJava["java.awt.Color", "BLACK"]
g.setColor[black]
ww = getWidth[]
hh = getHeight[]
g.fillRect[0,0,ww,hh]
yellow = staticJava["java.awt.Color", "YELLOW"]
g.setColor[yellow]
w = min[ww, hh] - 20
g.fillOval[10,10,w,w]
g.setColor[black]
g.fillOval[int[w/3], int[w/3], int[w/8], int[w/8]]
g.fillOval[int[w*(2/3)], int[w/3], int[w/8], int[w/8]]
g.fillRect[int[w*(1/4)], int[w*(2/3)], int[w*(2/3)], int[w/15]]
}
// Set that function as the onPaint function.
c.setPaint[ff]
// Create an empty update method. You rarely need this unless you're doing
// some sort of incremental painting.
//uu = {|g| paint[g]}
//c.setUpdate[uu]
// Force a repaint. (setPaint may do this in the future.)
c.repaint[]
Download or view guitoolstest.frink in plain text format
This is a program written in the programming language Frink.
For more information, view the Frink
Documentation or see More Sample Frink Programs.
Alan Eliasen was born 19963 days, 21 hours, 56 minutes ago.