Example usage for java.awt Container getComponents

Introduction

In this page you can find the example usage for java.awt Container getComponents.

Prototype

public Component[] getComponents() 

Source Link

Document

Gets all the components in this container.

Usage

From source file:GroupRadio.java

public static Enumeration getSelectedElements(Container container) {
    Vector selections = new Vector();
    Component components[] = container.getComponents();
    for (int i = 0, n = components.length; i < n; i++) {
        if (components[i] instanceof AbstractButton) {
            AbstractButton button = (AbstractButton) components[i];
            if (button.isSelected()) {
                selections.addElement(button.getText());
            }/*from  w  ww  . jav  a 2 s. c o m*/
        }
    }
    return selections.elements();
}

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From source file:Main.java

/**
 * Enables or disables all children of the given container.
 *
 * @param container the container/*from  www  .j  a va  2s.c om*/
 * @param enable if true, the components are enabled, otherwise they are disabled
 */
public static void enableContainerChildren(Container container, boolean enable) {
    if (container == null)
        return;
    for (Component comp : container.getComponents()) {
        try {
            comp.setEnabled(enable);
            ((JComponent) comp).setOpaque(enable);
            if (comp instanceof Container)
                enableContainerChildren((Container) comp, enable);
        } catch (ClassCastException e) {
            // ignore component
            continue;
        }
    }
}

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From source file:Main.java

private static void setForegroundOrBackgroundDeep(final boolean doForeground, Component component, Color color,
        Class[] excludedClasses, boolean processContentsOfExcludedContainers) {

    // If this component one that should be excluded?
    boolean excluded = false;
    if (excludedClasses != null) {
        for (int i = 0; i < excludedClasses.length && !excluded; i++) {
            if (excludedClasses[i].isInstance(component)) {
                excluded = true;//from w  w  w  .  ja v  a 2 s.co  m
            }
        }
    }

    // If not exluded, set the component's foreground or background.
    if (!excluded) {
        if (doForeground) {
            component.setForeground(color);
        } else {
            component.setBackground(color);
        }
    }

    // Recursively process the contents of containers.
    if ((!excluded || processContentsOfExcludedContainers) && (component instanceof Container)) {
        Container container = (Container) component;
        Component[] children = container.getComponents();
        if (children != null) {
            for (int i = 0; i < children.length; i++) {
                setForegroundOrBackgroundDeep(doForeground, children[i], color, excludedClasses,
                        processContentsOfExcludedContainers);
            }
        }
    }
}

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From source file:Main.java

static public <T> void findDescendantOfType(List<T> holder, Container parent, Class<T> type) {
    if (type.isInstance(parent)) {
        holder.add((T) parent);//www . j  a va  2 s .  c om
    }
    for (Component child : parent.getComponents()) {
        if (child instanceof Container) {
            findDescendantOfType(holder, (Container) child, type);
        } else {
            if (type.isInstance(child)) {
                holder.add((T) child);
            }
        }
    }
}

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From source file:SpringDemo4.java

public static void setContainerSize(Container parent, int pad) {
    SpringLayout layout = (SpringLayout) parent.getLayout();
    Component[] components = parent.getComponents();
    Spring maxHeightSpring = Spring.constant(0);
    SpringLayout.Constraints pCons = layout.getConstraints(parent);

    // Set the container's right edge to the right edge
    // of its rightmost component + padding.
    Component rightmost = components[components.length - 1];
    SpringLayout.Constraints rCons = layout.getConstraints(rightmost);
    pCons.setConstraint(SpringLayout.EAST,
            Spring.sum(Spring.constant(pad), rCons.getConstraint(SpringLayout.EAST)));

    // Set the container's bottom edge to the bottom edge
    // of its tallest component + padding.
    for (int i = 0; i < components.length; i++) {
        SpringLayout.Constraints cons = layout.getConstraints(components[i]);
        maxHeightSpring = Spring.max(maxHeightSpring, cons.getConstraint(SpringLayout.SOUTH));
    }/* w  w w .j  a  v a 2s.  co m*/
    pCons.setConstraint(SpringLayout.SOUTH, Spring.sum(Spring.constant(pad), maxHeightSpring));
}

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From source file:Main.java

/**
 * Sets the background color for the specified container and all the
 * JPanel, JLabel, JCheckBox, JComboBox, JTextField, JRadioButton, and
 * JScrollPane components that it contains to the same color.
 * //  w  w w.  j  av  a2s.  c  o  m
 * @param c the container to set the background color of.
 * @param bg the background color.
 */
public static void setBackground(Container c, Color bg) {
    c.setBackground(bg);
    Component[] children = c.getComponents();
    if (children == null) {
        return;
    }
    Component child;
    int len = children.length;
    if (bg != null) {
        for (int i = 0; i < len; i++) {
            child = children[i];
            if (!bg.equals(child.getBackground())
                    && ((child instanceof JPanel) || (child instanceof JLabel) || (child instanceof JCheckBox)
                            || (child instanceof JComboBox) || (child instanceof JTextField)
                            || (child instanceof JRadioButton) || (child instanceof JScrollPane))) {
                child.setBackground(bg);
            }
        }
    } else {
        // Null background color case
        for (int i = 0; i < len; i++) {
            child = children[i];
            if ((child.getBackground() != null) && ((child instanceof JPanel) || (child instanceof JLabel)
                    || (child instanceof JCheckBox))) {
                child.setBackground(null);
            } //end if
        } // end for
    } //end if else
}

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From source file:Main.java

public static List<JComponent> getComponents(Container owner, Class<?> clazz, boolean onlyVisible) {
    List<JComponent> list = new ArrayList<JComponent>();
    for (Component c : owner.getComponents()) {
        if (clazz.isInstance(c) && (!onlyVisible || c.isShowing()))
            list.add((JComponent) c);
        else if (c instanceof JComponent) {
            for (JComponent b : getComponents((JComponent) c, clazz, onlyVisible))
                list.add(b);/*ww w .j  av a 2 s.  c om*/
        }
    }
    return list;
}

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From source file:Main.java

public static void enableAll(Container container, boolean flag) {
    if (container == null)
        return;//from   w  w w. jav a  2 s.  c om
    container.setEnabled(flag);
    Component acomponent[] = container.getComponents();
    if (acomponent == null)
        return;
    for (int i = 0; i < acomponent.length; i++)
        if (acomponent[i] instanceof Container)
            enableAll((Container) acomponent[i], flag);
        else
            acomponent[i].setEnabled(flag);

}

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From source file:DebugUtilities.java

public static void printContainerComponents(java.awt.Container cont, PrintWriter writer, String prefix,
        boolean recurse) {
    java.awt.Component[] comps = cont.getComponents();

    if (comps.length < 1) {
        writer.println(prefix + "Contains no components.");
    }/*from w  ww.j  a v a 2  s. co  m*/

    for (int i = 0; i < comps.length; ++i) {
        DebugUtilities.printClassHierarchy(comps[i].getClass(), writer, prefix + "[" + i + "]");

        if (recurse) {
            Class c = java.awt.Container.class;
            if (c.isAssignableFrom(comps[i].getClass())) {
                DebugUtilities.printContainerComponents((java.awt.Container) comps[i], writer,
                        (prefix + "[" + i + "] "), recurse);
            }
        }
    }
}

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From source file:Main.java

public static JButton getButton(Container container, String text) {
    JButton btn = null;//from ww  w  .  j a  va2s  .c o m
    List<Container> children = new ArrayList<>(25);
    for (Component child : container.getComponents()) {
        if (child instanceof JButton) {
            JButton button = (JButton) child;
            if (text.equals(button.getText())) {
                btn = button;
                break;
            }
        } else if (child instanceof Container) {
            children.add((Container) child);
        }
    }
    if (btn == null) {
        for (Container cont : children) {
            JButton button = getButton(cont, text);
            if (button != null) {
                btn = button;
                break;
            }
        }
    }
    return btn;
}

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