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 19967 days, 5 hours, 22 minutes ago.