Drawing and Java2D

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WindowAdapter class Implementing the WindowListener interfacemeans needing to implement all itsmethods, even if you don't need them WindowAdapter is an abstract superclassthat implements WindowListener andprovides default blank bodies for themethods Subclass WindowAdapter and override justthe ones you need: class WinEvents extends WindowAdapter {public void windowClosed( WindowEvent e ) {CMPT166: drawing and Java2D 15 Feb 20118
Swing graphics: .paint() JFrames have a .paint() method, whichdraws the window on the screen● To do our own drawing, override paint()● Make sure to call super.paint() first to draw theJFrame, then do our own drawing on top paint() takes a Graphics context as itsargument● Drawing routines are methods of Graphicspublic class SmileyFace extends JFrame {public void paint( Graphics g ) {super.paint( g );g.drawOval( .... );CMPT166: drawing and Java2D 15 Feb 20119
Page 10 and 11: paint() vs. paintComponent() JFrame
Page 12 and 13: Ovals and arcs g.drawOval( x, y, w,
Page 14 and 15: Steps to draw in a widget Subclass
Page 16 and 17: Line stroke Stroking is how lines a
Page 18 and 19: Reading images from file ImageIO li
Page 20 and 21: Clipping The current clip is the vi
Page 22 and 23: Coordinate transforms Default has o

Drawing and Java2D

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