A simple Drawing Pad on which the user can draw some lines and shaps by using the mouse.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | /******************************************************* * MYCPLUS Sample Code - https://www.mycplus.com * * * * This code is made available as a service to our * * visitors and is provided strictly for the * * purpose of illustration. * * * * Please direct all inquiries to saqib at mycplus.com * *******************************************************/ package draw1; import java.awt.*; import java.awt.event.*; import java.io.*; import javax.swing.*; import scribble3.*; public class DrawingPad extends Scribble { public DrawingPad(String title) { super(title); initTools(); ActionListener toolListener = new ActionListener() { public void actionPerformed(ActionEvent event) { Object source = event.getSource(); if (source instanceof AbstractButton) { AbstractButton button = (AbstractButton) source; Tool tool = toolkit.setSelectedTool(button.getText()); drawingCanvas.setTool(tool); } } }; JComponent toolbar = createToolBar(toolListener); getContentPane().add(toolbar, BorderLayout.WEST); JMenu menu = createToolMenu(toolListener); menuBar.add(menu, 1); // insert at index position 1 } public Tool getSelectedTool() { return toolkit.getSelectedTool(); } protected void initTools() { toolkit = new ToolKit(); toolkit.addTool(new ScribbleTool(canvas, "Scribble")); toolkit.addTool(new TwoEndsTool(canvas, "Line", TwoEndsTool.LINE)); toolkit.addTool(new TwoEndsTool(canvas, "Oval", TwoEndsTool.OVAL)); toolkit.addTool(new TwoEndsTool(canvas, "Rectangle", TwoEndsTool.RECT)); drawingCanvas.setTool(toolkit.getTool(0)); } // factory method protected ScribbleCanvas makeCanvas() { return (drawingCanvas = new DrawingCanvas()); } protected JComponent createToolBar(ActionListener toolListener) { JPanel toolbar = new JPanel(new GridLayout(0, 1)); int n = toolkit.getToolCount(); for (int i = 0; i < n; i++) { Tool tool = toolkit.getTool(i); if (tool != null) { JButton button = new JButton(tool.getName()); button.addActionListener(toolListener); toolbar.add(button); } } return toolbar; } protected JMenu createToolMenu(ActionListener toolListener) { JMenu menu = new JMenu("Tools"); int n = toolkit.getToolCount(); for (int i = 0; i < n; i++) { Tool tool = toolkit.getTool(i); if (tool != null) { JMenuItem menuitem = new JMenuItem(tool.getName()); menuitem.addActionListener(toolListener); menu.add(menuitem); } } return menu; } protected ToolKit toolkit; protected DrawingCanvas drawingCanvas; public static void main(String[] args) { JFrame frame = new DrawingPad("Drawing Pad"); frame.setSize(width, height); Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); frame.setLocation(screenSize.width/2 - width/2, screenSize.height/2 - height/2); frame.show(); } } |
