CustomLayout (Vaadin)

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

com.vaadin.ui
Class CustomLayout

java.lang.Object
  com.vaadin.terminal.AbstractClientConnector
      com.vaadin.ui.AbstractComponent
          com.vaadin.ui.AbstractComponentContainer
              com.vaadin.ui.AbstractLayout
                  com.vaadin.ui.CustomLayout

All Implemented Interfaces:: MethodEventSource, Connector, ClientConnector, RpcTarget, Sizeable, Vaadin6Component, VariableOwner, Component, ComponentContainer, HasComponents, Layout, Layout.MarginHandler, Serializable, Iterable<Component>, EventListener

public class CustomLayout
extends AbstractLayout
implements Vaadin6Component
extends AbstractLayout
implements Vaadin6Component

A container component with freely designed layout and style. The layout consists of items with textually represented locations. Each item contains one sub-component, which can be any Vaadin component, such as a layout. The adapter and theme are responsible for rendering the layout with a given style by placing the items in the defined locations.

The placement of the locations is not fixed - different themes can define the locations in a way that is suitable for them. One typical example would be to create visual design for a web site as a custom layout: the visual design would define locations for "menu", "body", and "title", for example. The layout would then be implemented as an XHTML template for each theme.

The default theme handles the styles that are not defined by drawing the subcomponents just as in OrderedLayout.

Since:: 3.0
Version:: 7.0.0.alpha3
Author:: Vaadin Ltd., Duy B. Vo (devduy@gmail.com)
See Also:: Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.vaadin.ui.AbstractComponent
`AbstractComponent.ComponentErrorEvent, AbstractComponent.ComponentErrorHandler`

Nested classes/interfaces inherited from interface com.vaadin.terminal.VariableOwner
`VariableOwner.ErrorEvent`

Nested classes/interfaces inherited from interface com.vaadin.ui.Component
`Component.ErrorEvent, Component.ErrorListener, Component.Event, Component.Focusable, Component.Listener`

Nested classes/interfaces inherited from interface com.vaadin.terminal.Sizeable
`Sizeable.Unit`

Nested classes/interfaces inherited from interface com.vaadin.ui.Layout
`Layout.AlignmentHandler, Layout.MarginHandler, Layout.MarginInfo, Layout.SpacingHandler`

Nested classes/interfaces inherited from interface com.vaadin.ui.ComponentContainer
`ComponentContainer.ComponentAttachEvent, ComponentContainer.ComponentAttachListener, ComponentContainer.ComponentDetachEvent, ComponentContainer.ComponentDetachListener`

Field Summary

Fields inherited from class com.vaadin.ui.AbstractLayout
`margins`

Fields inherited from interface com.vaadin.terminal.Sizeable
`SIZE_UNDEFINED, UNITS_CM, UNITS_EM, UNITS_EX, UNITS_INCH, UNITS_MM, UNITS_PERCENTAGE, UNITS_PICAS, UNITS_PIXELS, UNITS_POINTS`

Constructor Summary
`protected`	`CustomLayout()` Default constructor only used by subclasses.
	`CustomLayout(InputStream templateStream)` Constructs a custom layout with the template given in the stream.
	`CustomLayout(String template)` Constructor for custom layout with given template name.

Method Summary
`void`	`addComponent(Component c)` Adds the component into this container.
`void`	`addComponent(Component c, String location)` Adds the component into this container to given location.
`void`	`changeVariables(Object source, Map<String,Object> variables)` Called when one or more variables handled by the implementing class are changed.
`Component`	`getComponent(String location)` Gets the child-component by its location.
`int`	`getComponentCount()` Gets the number of contained components.
`Iterator<Component>`	`getComponentIterator()` Gets the component container iterator for going trough all the components in the container.
`CustomLayoutState`	`getState()` Returns the shared state bean with information to be sent from the server to the client.
`String`	`getTemplateContents()` Get the contents of the template
`String`	`getTemplateName()` Get the name of the template
`protected void`	`initTemplateContentsFromInputStream(InputStream templateStream)`
`void`	`paintContent(PaintTarget target)` Paints the Paintable into a UIDL stream.
`void`	`removeComponent(Component c)` Removes the component from this container.
`void`	`removeComponent(String location)` Removes the component from this container from given location.
`void`	`replaceComponent(Component oldComponent, Component newComponent)` Replaces the component in the container with another one without changing position.
`void`	`setMargin(boolean enabled)` Although most layouts support margins, CustomLayout does not.
`void`	`setMargin(boolean topEnabled, boolean rightEnabled, boolean bottomEnabled, boolean leftEnabled)` Although most layouts support margins, CustomLayout does not.
`void`	`setTemplateContents(String templateContents)` Set the contents of the template used to draw the custom layout.
`void`	`setTemplateName(String templateName)` Set the name of the template used to draw custom layout.

Methods inherited from class com.vaadin.ui.AbstractLayout
`getMargin, setMargin`

Methods inherited from class com.vaadin.ui.AbstractComponentContainer
`addListener, addListener, fireComponentAttachEvent, fireComponentDetachEvent, isComponentVisible, iterator, moveComponentsFrom, removeAllComponents, removeListener, removeListener, setHeight, setVisible, setWidth`

Methods inherited from class com.vaadin.ui.AbstractComponent
addListener, addListener, addListener, addListener, addShortcutListener, addStyleName, attach, detach, findAncestor, fireComponentErrorEvent, fireComponentEvent, fireEvent, focus, getActionManager, getApplication, getCaption, getComponentError, getData, getDebugId, getDescription, getErrorHandler, getErrorMessage, getHeight, getHeightUnits, getIcon, getListeners, getLocale, getParent, getRoot, getStyle, getStyleName, getWidth, getWidthUnits, handleError, hasListeners, isConnectorEnabled, isEnabled, isImmediate, isReadOnly, isVisible, removeListener, removeListener, removeListener, removeListener, removeListener, removeShortcutListener, removeStyleName, requestRepaint, setCaption, setComponentError, setData, setDebugId, setDescription, setEnabled, setErrorHandler, setHeight, setIcon, setImmediate, setLocale, setParent, setReadOnly, setSizeFull, setSizeUndefined, setStyle, setStyleName, setWidth, updateState

Methods inherited from class com.vaadin.ui.AbstractComponent

addListener, addListener, addListener, addListener, addShortcutListener, addStyleName, attach, detach, findAncestor, fireComponentErrorEvent, fireComponentEvent, fireEvent, focus, getActionManager, getApplication, getCaption, getComponentError, getData, getDebugId, getDescription, getErrorHandler, getErrorMessage, getHeight, getHeightUnits, getIcon, getListeners, getLocale, getParent, getRoot, getStyle, getStyleName, getWidth, getWidthUnits, handleError, hasListeners, isConnectorEnabled, isEnabled, isImmediate, isReadOnly, isVisible, removeListener, removeListener, removeListener, removeListener, removeListener, removeShortcutListener, removeStyleName, requestRepaint, setCaption, setComponentError, setData, setDebugId, setDescription, setEnabled, setErrorHandler, setHeight, setIcon, setImmediate, setLocale, setParent, setReadOnly, setSizeFull, setSizeUndefined, setStyle, setStyleName, setWidth, updateState

Methods inherited from class com.vaadin.terminal.AbstractClientConnector
`addExtension, addMethodInvocationToQueue, createState, getAllChildrenIterable, getConnectorId, getExtensions, getRpcManager, getRpcProxy, getStateType, registerRpc, registerRpc, removeExtension, requestRepaintAll, retrievePendingRpcCalls`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface com.vaadin.terminal.VariableOwner
`isEnabled, isImmediate`

Methods inherited from interface com.vaadin.ui.Component
`addListener, addStyleName, attach, getApplication, getCaption, getDebugId, getIcon, getLocale, getParent, getRoot, getStyleName, isEnabled, isReadOnly, isVisible, removeListener, removeStyleName, setCaption, setDebugId, setEnabled, setIcon, setReadOnly, setStyleName, setVisible, updateState`

Methods inherited from interface com.vaadin.terminal.gwt.server.ClientConnector
`detach, getExtensions, getStateType, isConnectorEnabled, removeExtension, requestRepaint, requestRepaintAll, retrievePendingRpcCalls, setParent`

Methods inherited from interface com.vaadin.terminal.gwt.client.Connector
`getConnectorId`

Methods inherited from interface com.vaadin.terminal.gwt.server.RpcTarget
`getRpcManager`

Methods inherited from interface com.vaadin.terminal.Sizeable
`getHeight, getHeightUnits, getWidth, getWidthUnits, setHeight, setHeight, setSizeFull, setSizeUndefined, setWidth, setWidth`

Methods inherited from interface com.vaadin.ui.ComponentContainer
`addListener, addListener, moveComponentsFrom, removeAllComponents, removeListener, removeListener`

Methods inherited from interface com.vaadin.ui.HasComponents
`isComponentVisible`

Methods inherited from interface java.lang.Iterable
`iterator`

Constructor Detail

CustomLayout

protected CustomLayout()

Default constructor only used by subclasses. Subclasses are responsible for setting the appropriate fields. Either setTemplateName(String), that makes layout fetch the template from theme, or setTemplateContents(String).

CustomLayout

public CustomLayout(InputStream templateStream)
             throws IOException

Constructs a custom layout with the template given in the stream.

Parameters:: templateStream - Stream containing template data. Must be using UTF-8 encoding. To use a String as a template use for instance new ByteArrayInputStream("; streamLength - Length of the templateStream
Throws:: IOException

CustomLayout

public CustomLayout(String template)

Constructor for custom layout with given template name. Template file is fetched from "/layout/".

Method Detail

initTemplateContentsFromInputStream

protected void initTemplateContentsFromInputStream(InputStream templateStream) throws IOException

Throws:
IOException

getState

public CustomLayoutState getState()

Description copied from class: AbstractComponent

Returns the shared state bean with information to be sent from the server to the client. Subclasses should override this method and set any relevant fields of the state returned by super.getState().

Specified by:
getState in interface Connector
Specified by:
getState in interface Component
Overrides:
getState in class AbstractLayout

Returns:
updated component shared state

addComponent

public void addComponent(Component c, String location)

Adds the component into this container to given location. If the location is already populated, the old component is removed.

Parameters:
c - the component to be added.
location - the location of the component.

addComponent

public void addComponent(Component c)

Adds the component into this container. The component is added without specifying the location (empty string is then used as location). Only one component can be added to the default "" location and adding more components into that location overwrites the old components.

Specified by:
addComponent in interface ComponentContainer
Overrides:
addComponent in class AbstractComponentContainer

Parameters:
c - the component to be added.
See Also:
ComponentContainer.addComponent(Component)

removeComponent

public void removeComponent(Component c)

Removes the component from this container.

Specified by:
removeComponent in interface ComponentContainer
Overrides:
removeComponent in class AbstractComponentContainer

Parameters:
c - the component to be removed.
See Also:
ComponentContainer.removeComponent(Component)

removeComponent

public void removeComponent(String location)

Removes the component from this container from given location.

Parameters:
location - the Location identifier of the component.

getComponentIterator

public Iterator<Component> getComponentIterator()

Gets the component container iterator for going trough all the components in the container.

Specified by:
getComponentIterator in interface HasComponents

Returns:
the Iterator of the components inside the container.

getComponentCount

public int getComponentCount()

Gets the number of contained components. Consistent with the iterator returned by getComponentIterator().

Specified by:
getComponentCount in interface ComponentContainer

Returns:
the number of contained components

getComponent

public Component getComponent(String location)

Gets the child-component by its location.

Parameters:
location - the name of the location where the requested component resides.
Returns:
the Component in the given location or null if not found.

replaceComponent

public void replaceComponent(Component oldComponent, Component newComponent)

Description copied from interface: ComponentContainer

Replaces the component in the container with another one without changing position.
This method replaces component with another one is such way that the new component overtakes the position of the old component. If the old component is not in the container, the new component is added to the container. If the both component are already in the container, their positions are swapped. Component attach and detach events should be taken care as with add and remove.

Specified by:
replaceComponent in interface ComponentContainer

Parameters:
oldComponent - the old component that will be replaced.
newComponent - the new component to be replaced.

getTemplateName

public String getTemplateName()

Get the name of the template

getTemplateContents

public String getTemplateContents()

Get the contents of the template

setTemplateName

public void setTemplateName(String templateName)

Set the name of the template used to draw custom layout. With GWT-adapter, the template with name 'templatename' is loaded from VAADIN/themes/themename/layouts/templatename.html. If the theme has not been set (with Application.setTheme()), themename is 'default'.

Parameters:
templateName -

setTemplateContents

public void setTemplateContents(String templateContents)

Set the contents of the template used to draw the custom layout.

Parameters:
templateContents -

setMargin

public void setMargin(boolean enabled)

Although most layouts support margins, CustomLayout does not. The behaviour of this layout is determined almost completely by the actual template.

Specified by:
setMargin in interface Layout
Overrides:
setMargin in class AbstractLayout

Throws:
UnsupportedOperationException

setMargin

public void setMargin(boolean topEnabled, boolean rightEnabled, boolean bottomEnabled, boolean leftEnabled)

Although most layouts support margins, CustomLayout does not. The behaviour of this layout is determined almost completely by the actual template.

Specified by:
setMargin in interface Layout
Overrides:
setMargin in class AbstractLayout

Throws:
UnsupportedOperationException

changeVariables

public void changeVariables(Object source, Map<String,Object> variables)

Description copied from interface: VariableOwner

Called when one or more variables handled by the implementing class are changed.

Specified by:
changeVariables in interface VariableOwner

Parameters:
source - the Source of the variable change. This is the origin of the event. For example in Web Adapter this is the request.
variables - the Mapping from variable names to new variable values.

paintContent

public void paintContent(PaintTarget target) throws PaintException

Description copied from interface: Vaadin6Component

Paints the Paintable into a UIDL stream. This method creates the UIDL sequence describing it and outputs it to the given UIDL stream.

It is called when the contents of the component should be painted in response to the component first being shown or having been altered so that its visual representation is changed.

Specified by:
paintContent in interface Vaadin6Component

Parameters:
target - the target UIDL stream where the component should paint itself to.
Throws:
PaintException - if the paint operation failed.

Overview Package Class Use Tree Deprecated Index Help

PREV CLASS NEXT CLASS FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

Copyright © 2000-2011 Vaadin Ltd. All Rights Reserved.

com.vaadin.ui Class CustomLayout

CustomLayout

CustomLayout

CustomLayout

initTemplateContentsFromInputStream

getState

addComponent

addComponent

removeComponent

removeComponent

getComponentIterator

getComponentCount

getComponent

replaceComponent

getTemplateName

getTemplateContents

setTemplateName

setTemplateContents

setMargin

setMargin

changeVariables

paintContent

com.vaadin.ui
Class CustomLayout