// // DrawSelector class // part of the set of documents known as Java no sugar. // Copyright (c) 1996 Sunil Gupta, sunil@magnetic.demon.co.uk // placed into the public domain by the author // import java.applet.*; import java.awt.*; import DrawSelectorCanvas; public class DrawSelector extends Applet { //******************************************************************* // instance variables //******************************************************************* Label label; List list; Button go_button, stop_button; DrawSelectorCanvas draw_surface; //******************************************************************* // applet methods //******************************************************************* public void init() { Panel controls, buttons; // -------------------------------------- // create the interface items to display // -------------------------------------- label = new Label("Drawing functions"); list = new List(10, true); list.addItem("draw3DRect"); list.addItem("drawArc"); list.addItem("drawLine"); list.addItem("drawOval"); list.addItem("drawPolygon"); list.addItem("drawRect"); list.addItem("drawRoundRect"); list.addItem("fill3DRect"); list.addItem("fillArc"); list.addItem("fillOval"); list.addItem("fillPolygon"); list.addItem("fillRect"); list.addItem("fillRoundRect"); list.setMultipleSelections(false); go_button = new Button("Go"); stop_button = new Button("Stop"); draw_surface = new DrawSelectorCanvas(); draw_surface.set_clear_flag(false); //---add controls to a control panel.------------- buttons = new Panel(); buttons.setLayout( new GridLayout(2,1)); buttons.add(go_button); buttons.add(stop_button); //---------------add them ------------------------ controls = new Panel(); controls.setLayout(new BorderLayout()); controls.add("North", label); controls.add("Center", list); controls.add("South", buttons); //------------------and now a border layout------------ this.setLayout(new BorderLayout()); this.add("West", controls); this.add("Center", draw_surface); } public boolean action(Event event, Object o) { String draw_mode; if (event.target == go_button) { draw_mode = list.getSelectedItem(); if (draw_mode != null) { draw_surface.stop(); draw_surface.draw_shapes(draw_mode); } } else if (event.target == stop_button) { draw_surface.stop(); } return (true); } public String getAppletInfo() { return "TEST APP VERSION 2"; } }
file: /Techref/language/java/nosugar/graphics/draw/code/DrawSelector.java, 2KB, , updated: 1997/6/1 00:54, local time: 2024/8/26 10:26,
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