Package com.storedobject.vaadin

Class ImageView

java.lang.Object

com.storedobject.vaadin.View

com.storedobject.vaadin.ImageView

All Implemented Interfaces:

ClickHandler, ExecutableView, HomeView, ValueChangeHandler, com.vaadin.flow.component.ComponentEventListener<com.vaadin.flow.component.ClickEvent<? extends com.vaadin.flow.component.Component>>, com.vaadin.flow.component.HasValue.ValueChangeListener, Serializable, Runnable, EventListener

Direct Known Subclasses:

ImageView

public class ImageView
extends View
implements HomeView

A Home View that shows an image (typically used to show a background image).

Author:

Syam

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.storedobject.vaadin.ClickHandler

ClickHandler.ModifiedClickEvent<C extends com.vaadin.flow.component.Component>

Constructor Summary

Constructors

Constructor	Description
ImageView()	Create an empty image view.
ImageView(Image image)	Create the image view from the given image.
ImageView(com.vaadin.flow.server.AbstractStreamResource resource)	Create the image view from a resource.
ImageView(String url)	Create the image view from a URL.

Method Summary

Modifier and Type	Method	Description
void	decorateComponent()	This will be invoked by the Application just before making the component of this view visible.
com.vaadin.flow.component.Component	getImageComponent(Image image)	Get the image component that will be set as the component of this view.
protected void	initUI()	This method is invoked when the view wants to determine its "content" to be displayed and nothing exists at that moment.
void	setSource(com.vaadin.flow.server.AbstractStreamResource source)	Set the stream resource of the image content.
void	setSource(String source)	Set the URL resource of the image content.

Methods inherited from class com.storedobject.vaadin.View

abort, aborted, addClosedListener, addOpenedListener, clean, close, createCloseableView, createWindow, execute, execute, execute, executing, focus, focus, focusAny, getApplication, getCaption, getComponent, getContent, getCreatedBy, getEmbeddedView, getMenuItem, getMenuItem, getView, invoke, isFullScreen, isScrollable, isWindowMode, select, setCaption, setComponent, setCreatedBy, setDefaultPadding, setEmbeddedView, setFirstFocus, setFullScreen, setScrollable, setWindowMode, skipFirstFocus

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.storedobject.vaadin.ClickHandler

clicked, doubleClicked, onComponentEvent, rightClicked

Methods inherited from interface com.storedobject.vaadin.ExecutableView

clearAlerts, clicked, createMenuItem, error, getMenuIconName, getView, isCloseable, isHomeView, log, log, message, returnedFrom, run, setClickable, speak, trackValueChange, tray, valueChanged, warning

Methods inherited from interface com.storedobject.vaadin.ValueChangeHandler

valueChanged

Constructor Details

ImageView

public ImageView()

Create an empty image view. Image source can be set later.

ImageView

public ImageView(String url)

Create the image view from a URL.

Parameters:

url - Image URL.

ImageView

public ImageView(com.vaadin.flow.server.AbstractStreamResource resource)

Create the image view from a resource.

Parameters:

resource - Image resource

ImageView

public ImageView(Image image)

Create the image view from the given image.

Parameters:

image - Image.

Method Details

initUI

protected void initUI()

Description copied from class: View

This method is invoked when the view wants to determine its "content" to be displayed and nothing exists at that moment. View.setComponent(Component) may be called from within this method.

Overrides:

initUI in class View

decorateComponent

public void decorateComponent()

Description copied from class: View

This will be invoked by the Application just before making the component of this view visible. The default implementation does the following to the component:

If it is a Dialog, just returns without making any changes.

Will set the size to 'full' by invoking HasSize.setSizeFull() if it is an instance of HasSize so that it covers the entire content area.

Padding will be set to 5px (unless changed via View.setDefaultPadding(int)) and box-sizing to border-box. So, if you want to fill the component to the entire content area, you will have to override this method and set the padding to 0px.

If the component is an instance of Div, its "display" style will be set to "flex" and its "flex-direction" will be set to "column".

Overrides:

decorateComponent in class View

setSource

public void setSource(String source)

Set the URL resource of the image content.

Parameters:

source - URL resource.

setSource

public void setSource(com.vaadin.flow.server.AbstractStreamResource source)

Set the stream resource of the image content.

Parameters:

source - Stream resource of the image content.

getImageComponent

public com.vaadin.flow.component.Component getImageComponent(Image image)

Get the image component that will be set as the component of this view. The default implementation returns the Div with image embedded in it. The image will be stretched or squished to fit.

Parameters:

image - Image of this view.

Returns:

A component that will be set as the component of this view using View.setComponent(Component).