Complete Source Code.

Java for Small Spaces
Developing Java for small spaces
Chris Carpenter
Complete Source Code.


import com.sun.kjava.*;


public class UITest extends Spotlet
{
 public static Button exitButton;
 public static Button clearButton;
 public static Graphics graphics =
   Graphics.getGraphics();
 public TextField textFieldOne;
 public TextField textFieldTwo;
}

Slider slider;

public static void main(String args[])
{
	UITest ui = new UITest();
	ui.paint();
}

public UITest()
{
 register(NO_EVENT_OPTIONS);

 graphics.clearScreen();
 textFieldOne = new TextField
  ("Solution", 5, 10, 100, 20);
 textFieldOne.setUpperCase(true);

 textFieldTwo = new TextField
  ("Solution2", 5, 50, 100, 20);
 textFieldTwo.setUpperCase(true);

 slider = new Slider(5, 100, 100, 0, 1000, 0);

 textFieldOne.setFocus();
 exitButton = new Button("Exit", 115, 145);
 clearButton = new Button("Clear Text Fields", 5, 145);
}




public void paint()
{
 exitButton.paint();
 clearButton.paint();
 graphics.drawRectangle(0, 0, 160, 80, 0, graphics.PLAIN);
 textFieldOne.paint();
 textFieldTwo.paint();
 slider.paint();
}

public void keyDown(int key)
{
 if (textFieldOne.hasFocus()) {
	textFieldOne.handleKeyDown(key);
 }
 if (textFieldTwo.hasFocus()) {
	textFieldTwo.handleKeyDown(key);
 }
}

public void penMove(int x, int y)
{
 if (slider.contains(x, y)) {
	slider.handlePenMove(x, y);
	}
}

public void penDown(int x, int y)
{
 if (exitButton.pressed(x, y)) {
	System.exit(0);
 }
 if (clearButton.pressed(x, y)) {
	textFieldOne.setText("");
	textFieldOne.paint();
	textFieldTwo.setText("");
	textFieldTwo.paint();
 }
 if (slider.contains(x, y)) {
	slider.handlePenDown(x, y);
 }
 if (textFieldOne.pressed(x, y) &&
   (!textFieldOne.hasFocus())) {
	textFieldTwo.loseFocus();
	textFieldOne.setFocus();
 }
 if (textFieldTwo.pressed(x, y) &&
   (!textFieldTwo.hasFocus())) {
	textFieldOne.loseFocus();
	textFieldTwo.setFocus();
 }
}

About the Author

Chris Carpenter is a software engineer and architect at RoleModel Software, Inc. in Holly Springs, NC. He can be contacted at ccarpenter@rolemodelsoft.com.

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