Examples of java.awt.Component

java.awt.Component
, now aButton has a listener with a reference // to bigOne! aButton.addActionListener(this); } public void actionPerformed(ActionEvent e) { System.out.println("Hello There"); } } In this example, serializing aButton by itself will cause MyApp and everything it refers to to be serialized as well. The problem is that the listener is serializable by coincidence, not by design. To separate the decisions about MyApp and the ActionListener being serializable one can use a nested class, as in the following example:
```
 import java.awt.*; import java.awt.event.*; import java.io.Serializable; class MyApp java.io.Serializable { BigObjectThatShouldNotBeSerializedWithAButton bigOne; Button aButton = new Button(); static class MyActionListener implements ActionListener { public void actionPerformed(ActionEvent e) { System.out.println("Hello There"); } } MyApp() { aButton.addActionListener(new MyActionListener()); } } 
```
Note: For more information on the paint mechanisms utilitized by AWT and Swing, including information on how to write the most efficient painting code, see Painting in AWT and Swing.
For details on the focus subsystem, see How to Use the Focus Subsystem, a section in The Java Tutorial, and the Focus Specification for more information. @version 1.451, 07/29/09 @author Arthur van Hoff @author Sami Shaio

    }


    if (e.getSource() instanceof Component)
    {
      currentSource = e.getSource();
      final Component c = (Component) e.getSource();
      final Dimension d = c.getMaximumSize();
      final Dimension s = c.getSize();
      if (s.width > d.width)
      {
        s.width = d.width;
      }
      if (s.height > d.height)
      {
        s.height = d.height;
      }
      c.setSize(s);
      currentSource = null;
    }


  }

View Full Code Here

    synchronized (parent.getTreeLock())
    {
      final Insets insets = parent.getInsets();
      if (parent.getComponentCount() > 0)
      {
        final Component component = parent.getComponent(0);
        final Dimension d = component.getPreferredSize();
        return new Dimension(
            (int) d.getWidth() + insets.left + insets.right,
            (int) d.getHeight() + insets.top + insets.bottom
        );
      }

View Full Code Here

    synchronized (parent.getTreeLock())
    {
      final Insets insets = parent.getInsets();
      if (parent.getComponentCount() > 0)
      {
        final Component component = parent.getComponent(0);
        final Dimension d = component.getMinimumSize();
        return new Dimension(d.width + insets.left + insets.right,
            d.height + insets.top + insets.bottom);
      }
      else
      {

View Full Code Here

    {
      if (parent.getComponentCount() > 0)
      {
        final Insets insets = parent.getInsets();
        final Dimension parentSize = parent.getSize();
        final Component component = parent.getComponent(0);
        final Dimension componentSize = component.getPreferredSize();
        final int xx = insets.left + (
            Math.max((parentSize.width - insets.left - insets.right
                - componentSize.width) / 2, 0)
        );
        final int yy = insets.top + (
            Math.max((parentSize.height - insets.top - insets.bottom
                - componentSize.height) / 2, 0));
        component.setBounds(xx, yy, componentSize.width,
            componentSize.height);
      }
    }


  }

View Full Code Here

    public void setFont(Font font) {
        Font fontNormal = DcSettings.getFont(DcRepository.Settings.stSystemFontNormal);
        Font fontSystem = DcSettings.getFont(DcRepository.Settings.stSystemFontNormal);        
        
        super.setFont(fontNormal);
        Component component;
        Component subComponent;
        for (int i = 0; i < getComponents().length; i++) {
            component = getComponents()[i];
            if (component instanceof JPanel) {
                
                for (int j = 0; j < ((JPanel) component).getComponents().length; j++) {
                    subComponent = ((JPanel) component).getComponents()[j];
                    if (subComponent instanceof JLabel) 
                        subComponent.setFont(fontSystem);
                    else
                        subComponent.setFont(fontNormal);
                }
            }
        }
    }

View Full Code Here

                ListCellRenderer renderer = list.getCellRenderer();
        
                if (renderer != null) {
                    for(int index = 0; index < dataModelSize; index++) {
                        Object value = dataModel.getElementAt(index);
                        Component c = renderer.getListCellRendererComponent(list, value, index, false, false);
                        rendererPane.add(c);
                        Dimension cellSize = c.getPreferredSize();
                        int column = index%columnsPerRow;
                        int row    = index/columnsPerRow;
                        if (fixedCellWidth == -1)
                            cellWidths[column] = Math.max(cellWidths[column], cellSize.width);

View Full Code Here

        
                if (renderer != null) {
                    Dimension[] cellDims = new Dimension[nItems];
                    for(int index = 0; index < nItems; index++) {
                        Object value = dataModel.getElementAt(index);
                        Component c = renderer.getListCellRendererComponent(list, value, index, false, false);
                        rendererPane.add(c);
                        cellDims[index] = c.getPreferredSize();
                    }
    
                    //Reduce until all widhts on all rows fit
                    maxColumns = cellDims.length > 0 ? getMaxItemsBasedOnFirstRow(cellDims, width) : 0;
                    int index = maxColumns;

View Full Code Here

        //**********************************************************
        //Main panel
        //**********************************************************
        setLayout(Layout.getGBL());
        
        Component c = vdQuickPane != null ? vdQuickPane : panelResult;
        add(    c, Layout.getGBC( 0, 1, 3, 1, 100.0, 100.0
               ,GridBagConstraints.NORTHWEST, GridBagConstraints.BOTH,
                new Insets(5, 5, 5, 5), 0, 0)); 
        
        if (actionPanel != null)

View Full Code Here

              DcObject dco = vc.getSelectedItem();
              
              // item gotten via "getSelectedItem" is not loaded fully (!) 
              dco.reload();
                ViewPopupMenu menu = new ViewPopupMenu(dco, view.getType(), view.getIndex()); 
                Component component = (Component) vc;
                menu.setInvoker(component);
                menu.show(component, e.getX(), e.getY());
            }
        }

View Full Code Here


  private void refreshReportController(final ReportController newReportController)
  {
    for (int i = 0; i < outerReportControllerHolder.getComponentCount(); i++)
    {
      final Component maybeSplitPane = outerReportControllerHolder.getComponent(i);
      if (maybeSplitPane instanceof JSplitPane)
      {
        final JSplitPane splitPane = (JSplitPane) maybeSplitPane;
        reportControllerSliderSize = splitPane.getDividerLocation();
        break;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of java.awt.Component

com.cloudgarden.layout.AnchorLayout

com.sun.grid.jgdi.examples.jmxeventmonitor.MainFrame$MyCellRenderer

com.sun.jna.Native$AWT

de.sciss.eisenkraut.session.DocumentFrame$TimelineTool

gnu.testlet.java.awt.Component.isValid

gnu.testlet.javax.swing.JMenu.getPopUpMenu

net.sf.latexdraw.ui.WidgetMiniToolbar

net.sourceforge.cruisecontrol.config.PluginEditorPane

net.sourceforge.cruisecontrol.gui.panels.DefaultElementPanel

org.drools.adventures.AdventureFrame

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.