Examples of java.awt.Button

java.awt.Button
This class creates a labeled button. The application can cause some action to happen when the button is pushed. This image depicts three views of a "Quit" button as it appears under the Solaris operating system:

The first view shows the button as it appears normally. The second view shows the button when it has input focus. Its outline is darkened to let the user know that it is an active object. The third view shows the button when the user clicks the mouse over the button, and thus requests that an action be performed.
The gesture of clicking on a button with the mouse is associated with one instance of ActionEvent, which is sent out when the mouse is both pressed and released over the button. If an application is interested in knowing when the button has been pressed but not released, as a separate gesture, it can specialize processMouseEvent, or it can register itself as a listener for mouse events by calling addMouseListener. Both of these methods are defined by Component, the abstract superclass of all components.
When a button is pressed and released, AWT sends an instance of ActionEvent to the button, by calling processEvent on the button. The button's processEvent method receives all events for the button; it passes an action event along by calling its own processActionEvent method. The latter method passes the action event on to any action listeners that have registered an interest in action events generated by this button.
If an application wants to perform some action based on a button being pressed and released, it should implement ActionListener and register the new listener to receive events from this button, by calling the button's addActionListener method. The application can make use of the button's action command as a messaging protocol. @version 1.83 10/31/08 @author Sami Shaio @see java.awt.event.ActionEvent @see java.awt.event.ActionListener @see java.awt.Component#processMouseEvent @see java.awt.Component#addMouseListener @since JDK1.0

    harness.check(layout.minimumLayoutSize(container), new Dimension(10, 10));
    
    // Show that the width is calculated using the formula:
    //   w += (num + 1) * hgap + ins.left + ins.right;
    // when there is one or more components in container.
    container.add(new Button());
    harness.check(layout.minimumLayoutSize(container), new Dimension(10, 10));
    container.add(new Button());
    container.add(new List());
    harness.check(layout.minimumLayoutSize(container), new Dimension(20, 10));
  }

View Full Code Here

      }
    }
    
    public void actionPerformed(ActionEvent e)
    {
      Button b = (Button) e.getSource();
      b.setLabel("");
      source.setText("Drag and drop me to the following Button");
      actionPerformed = true;
    }

View Full Code Here

  public void test1(TestHarness harness)
  {
    // This test checks that the location of scrollpane's
    // child is "reset" to (0, 0).
    ScrollPane pane = new ScrollPane();
    Component button = new Button();
    button.setLocation(100, 250);
    pane.add(button);
    harness.check(button.getLocation().getX(), 100);
    harness.check(button.getLocation().getY(), 250);
    pane.doLayout();
    harness.check(button.getLocation().getX(), 0);
    harness.check(button.getLocation().getY(), 0);
  }

View Full Code Here

public class paramString implements Testlet
{


  public void test(TestHarness harness)
  {
    Button button = new Button();
    ComponentEvent event = new ComponentEvent(button, 
                                              ComponentEvent.COMPONENT_MOVED);


    // Check that previous code produced incorrect string representation.
    harness.check(! event.paramString().equalsIgnoreCase(

View Full Code Here

    events.add(event);
  }


  public void test(TestHarness harness) 
  {
    Component c = new Button("ABC");
    harness.check(c.getPreferredSize(), new Dimension(0, 0));
    harness.check(c.isPreferredSizeSet(), false);
    c.addPropertyChangeListener(this);
    c.setPreferredSize(new Dimension(10, 20));
    harness.check(c.getPreferredSize(), new Dimension(10, 20));
    harness.check(events.size(), 1);
    PropertyChangeEvent e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "preferredSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), null);
    harness.check(e.getNewValue(), new Dimension(10, 20));
    
    events.clear();
    c.setPreferredSize(new Dimension(30, 40));
    harness.check(c.getPreferredSize(), new Dimension(30, 40));
    harness.check(c.isPreferredSizeSet(), true);
    harness.check(events.size(), 1);
    e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "preferredSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), new Dimension(10, 20));
    harness.check(e.getNewValue(), new Dimension(30, 40));
    
    events.clear();
    c.setPreferredSize(null);
    harness.check(c.getPreferredSize(), new Dimension(0, 0));
    harness.check(c.isPreferredSizeSet(), false);
    harness.check(events.size(), 1);
    e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "preferredSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), new Dimension(30, 40));

View Full Code Here

    events.add(event);
  }


  public void test(TestHarness harness) 
  {
    Component c = new Button("ABC");
    harness.check(c.getMaximumSize(), new Dimension(32767, 32767));
    harness.check(c.isMaximumSizeSet(), false);
    c.addPropertyChangeListener(this);
    c.setMaximumSize(new Dimension(10, 20));
    harness.check(c.getMaximumSize(), new Dimension(10, 20));
    harness.check(c.isMaximumSizeSet(), true);
    harness.check(events.size(), 1);
    PropertyChangeEvent e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "maximumSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), null);
    harness.check(e.getNewValue(), new Dimension(10, 20));
    
    events.clear();
    c.setMaximumSize(new Dimension(30, 40));
    harness.check(c.getMaximumSize(), new Dimension(30, 40));
    harness.check(c.isMaximumSizeSet(), true);
    harness.check(events.size(), 1);
    e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "maximumSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), new Dimension(10, 20));
    harness.check(e.getNewValue(), new Dimension(30, 40));
    
    events.clear();
    c.setMaximumSize(null);
    harness.check(c.getMaximumSize(), new Dimension(32767, 32767));
    harness.check(c.isMaximumSizeSet(), false);
    harness.check(events.size(), 1);
    e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "maximumSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), new Dimension(30, 40));

View Full Code Here

    events.add(event);
  }


  public void test(TestHarness harness) 
  {
    Component c = new Button("ABC");
    harness.check(c.getMinimumSize(), new Dimension(0, 0));
    harness.check(c.isMinimumSizeSet(), false);
    c.addPropertyChangeListener(this);
    c.setMinimumSize(new Dimension(10, 20));
    harness.check(c.getMinimumSize(), new Dimension(10, 20));
    harness.check(events.size(), 1);
    PropertyChangeEvent e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "minimumSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), null);
    harness.check(e.getNewValue(), new Dimension(10, 20));
    
    events.clear();
    c.setMinimumSize(new Dimension(30, 40));
    harness.check(c.getMinimumSize(), new Dimension(30, 40));
    harness.check(c.isMinimumSizeSet(), true);
    harness.check(events.size(), 1);
    e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "minimumSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), new Dimension(10, 20));
    harness.check(e.getNewValue(), new Dimension(30, 40));
    
    events.clear();
    c.setMinimumSize(null);
    harness.check(c.getMinimumSize(), new Dimension(0, 0));
    harness.check(c.isMinimumSizeSet(), false);
    harness.check(events.size(), 1);
    e = (PropertyChangeEvent) events.get(0);
    harness.check(e.getPropertyName(), "minimumSize");
    harness.check(e.getSource(), c);
    harness.check(e.getOldValue(), new Dimension(30, 40));

View Full Code Here

        p.add(cFKForced);
        p.add(createLabel(""));
        p.add(createLabel(""));


        if (iTransferMode == TRFM_TRANSFER) {
            bStart    = new Button("Start Transfer");
            bContinue = new Button("Continue Transfer");


            bContinue.setEnabled(false);
        } else if (iTransferMode == Transfer.TRFM_DUMP) {
            bStart = new Button("Start Dump");
        } else if (iTransferMode == Transfer.TRFM_RESTORE) {
            bStart = new Button("Start Restore");
        }


        bStart.addActionListener(this);
        p.add(bStart);

View Full Code Here

        txtResult = new TextArea(20, 40);


        txtCommand.setFont(fFont);
        txtResult.setFont(new Font("Courier", Font.PLAIN, 12));


        butExecute = new Button("Execute");
        butClear   = new Button("Clear");


        butExecute.addActionListener(this);
        butClear.addActionListener(this);
        pCommand.add("East", butExecute);
        pCommand.add("West", butClear);

View Full Code Here

                }
            }
        });
        pText.add(recent);


        Button b;


        b = new Button("Clr");


        b.setActionCommand("Clear");
        b.addActionListener(new ActionListener() {


            public void actionPerformed(ActionEvent e) {


                ConnectionDialogCommon.deleteRecentConnectionSettings();


                settings = new Hashtable();


                recent.removeAll();
                recent.add(ConnectionDialogCommon.emptySettingName);
                mName.setText(null);
            }
        });
        pClearButton.add(b);
        pLabel.add(createLabel("Setting Name:"));


        mName = new TextField("");


        pText.add(mName);
        pLabel.add(createLabel("Type:"));


        types     = new Choice();
        connTypes = ConnectionDialogCommon.getTypes();


        for (int i = 0; i < connTypes.length; i++) {
            types.add(connTypes[i][0]);
        }


        types.addItemListener(this);
        pText.add(types);
        pLabel.add(createLabel("Driver:"));


        mDriver = new TextField(connTypes[0][1]);


        pText.add(mDriver);
        pLabel.add(createLabel("URL:"));


        mURL = new TextField(connTypes[0][2]);


        mURL.addActionListener(this);
        pText.add(mURL);
        pLabel.add(createLabel("User:"));


        mUser = new TextField("SA");


        mUser.addActionListener(this);
        pText.add(mUser);
        pLabel.add(createLabel("Password:"));


        mPassword = new TextField("");


        mPassword.addActionListener(this);
        mPassword.setEchoChar('*');
        pText.add(mPassword);


        b = new Button("Ok");


        b.setActionCommand("ConnectOk");
        b.addActionListener(this);
        pButton.add(b);


        b = new Button("Cancel");


        b.setActionCommand("ConnectCancel");
        b.addActionListener(this);
        pButton.add(b);
        add("East", createLabel(""));
        add("West", createLabel(""));


        mError = new Label("");

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of java.awt.Button

com.coffeerpg.login.LoginScreen

com.sun.star.lib.sandbox.ResourceViewer

com.yatchboy.brian.Controller

eas.miscellaneous.system.windowFrames.GeneralDialog

fmg.fmg8.graphVis.fensterDialoge.AllgemeinerDialog

fmg.fmg8.graphVis.SteuerFenster

fmg.fmg8.statistik.TraceBetrachter

fr.soleil.comete.demo.ChartPanelDemo

GetServer

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.