Examples of com.vaadin.ui.Component

com.vaadin.ui.Component
{@code Component} is the top-level interface that is and must be implementedby all Vaadin components. {@code Component} is paired with{@link AbstractComponent}, which provides a default implementation for all the methods defined in this interface.
Components are laid out in the user interface hierarchically. The layout is managed by layout components, or more generally by components that implement the {@link ComponentContainer} interface. Such a container is theparent of the contained components.

The {@link #getParent()} method allows retrieving the parent component of acomponent. While there is a {@link #setParent(Component) setParent()}, you rarely need it as you normally add components with the {@link ComponentContainer#addComponent(Component) addComponent()} method ofthe layout or other {@code ComponentContainer}, which automatically sets the parent.

A component becomes attached to an application (and the {@link #attach()} is called) when it or one of its parents is attached to themain window of the application through its containment hierarchy.
@author IT Mill Ltd. @version 6.7.1 @since 3.0


            @Override
            public void valueChange(ValueChangeEvent event) {
                Iterator<Component> it = ts.getComponentIterator();
                for (; it.hasNext();) {
                    Component c = it.next();
                    ts.getTab(c).setClosable(
                            (Boolean) event.getProperty().getValue());
                }
            }
        });

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                        public void valueChange(ValueChangeEvent event) {
                            Class<?> c = (Class<?>) event.getProperty()
                                    .getValue();


                            try {
                                Component newInstance = (Component) c
                                        .newInstance();
                                l.addComponent(newInstance);
                                editcomponent(newInstance);
                                getMainWindow().removeWindow(chooser);
                            } catch (InstantiationException e) {

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        Button removeComponent = new Button("Remove Component",
                new Button.ClickListener() {
                    @Override
                    public void buttonClick(ClickEvent event) {
                        Component last = l.getComponent(l.getComponentCount() - 1);
                        l.removeComponent(last);
                    }
                });
        header.addComponent(removeComponent);

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        setView("main");


    }


    private void setView(String string) {
        Component component = views.get(string);
        if (component == null) {
            getMainWindow().showNotification(
                    "View called " + string + " not found!");
        } else if (component != currentView) {
            if (currentView != null) {

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            @Override
            public void buttonClick(ClickEvent event) {
                int components = Integer.parseInt(n.getValue());
                Layout layout = getCurrentLayout();
                for (int i = 0; i < components; i++) {
                    Component component = newTestComponent();
                    if (cb.getValue()) {
                        component.setCaption("caption " + i);
                    }
                    layout.addComponent(component);
                }


                testarea.removeAllComponents();

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        final AbsoluteLayout layout = new AbsoluteLayout();
        layout.setWidth("100px");
        layout.setWidth("200px");
        layout.setPrimaryStyleName("my-absolute-layout");


        Component comp1 = new NativeButton("Child 1");
        comp1.setWidth("100%");
        comp1.setHeight("50px");
        layout.addComponent(comp1);


        addComponent(layout);


        addComponent(new Button("Change primary stylename",

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            }
        }));


        for (Iterator<Component> i = controls.getComponentIterator(); i
                .hasNext();) {
            Component component = i.next();
            if (component instanceof NativeSelect) {
                NativeSelect nativeSelect = (NativeSelect) component;
                nativeSelect.setNullSelectionAllowed(false);
                nativeSelect.setValue(new ArrayList<Object>(nativeSelect
                        .getItemIds()).get(0));

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                        } else {
                            newLayout = new VerticalLayout();
                        }


                        while (currentLayout.getComponentCount() > 0) {
                            Component child = currentLayout.getComponent(0);
                            Alignment alignment = currentLayout
                                    .getComponentAlignment(child);
                            float expRatio = currentLayout
                                    .getExpandRatio(child);
                            newLayout.addComponent(child);

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            }
        }
    }


    private void setChildState(int childIndex, int selectIndex, int valueIndex) {
        Component child = currentLayout.getComponent(childIndex);
        setState(child, selectIndex, valueIndex);
    }

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            Button b = new Button("Switch textfield/panel",
                    new ClickListener() {


                        @Override
                        public void buttonClick(ClickEvent event) {
                            Component visible = tf;


                            if (tf.isVisible()) {
                                visible = outerPanel;
                            }


                            outerPanel.setVisible(false);
                            tf.setVisible(false);


                            visible.setVisible(true);
                        }


                    });
            main.addComponent(b);

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com.vaadin.event.LayoutEvents$LayoutClickEvent

com.vaadin.server.AbstractCommunicationManager

com.vaadin.server.ComponentSizeValidator

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