| de.jwic.base.ControlContainer
 de.jwic.controls.ImageControl
| ImageControl | | abstract public class ImageControl extends ControlContainer implements IResourceControl(Code) | | Default IImageControl implementation that support linked map.
ImageControl.vtl uses jWic ajax update listener to replace the image without flicker.
IE 6 has a bug when working with img tag using a map:
An update to the map without updating its img also crashes the IE6!
author:
jbornema |
| Method Summary | |
| public void | actionPerformed(String actionId, String parameter)
| | public void | addShape(String type, String coords, String title, String url)
Adds a shape of type SHAPE_TYPE_RECT, ..._CIRLCE or ..._POLY with url and title. | | public void | addShape(String type, String coords, String title)
| | public void | attachResource(HttpServletRequest req, HttpServletResponse res)
| | public String | createImageURL()
Create a URL to this image. | | abstract public String | getFilename()
The filename is used in the servlet response and in
the html rendering. | | public int | getHeight()
Return the image height in pixel. | | public ByteArrayOutputStream | getImageOutputStream()
Return the ByteArrayOutputStream renderImage() must write the binary
image data into. | | public String | getInfoMessage()
Return the info message that is used for img title attribute and is
also displayed in window.status. | | public String | getMimeType()
Return the mime type for this image, like MIME_TYPE_JPG. | | public List | getShapes()
Return Collection of Shape objects that had been added with addShape(...). | | public int | getWidth()
Return the image width in pixel. | | public boolean | isCreateUniqueURL()
Return true if on every createUniqueURL() a new URL is created. | | public boolean | isHidden()
Return true if control should be rendered with no content. | | abstract public void | renderImage()
Renders the image data to imageOutputStream.
Don't forget to set the appropiate mime type and call
ByteArrayOutputStream.reset() before generating the image data again. | | public String | renderImage(OutputStream out)
Renders the image data to the writer. | | public void | setCreateUniqueURL(boolean createUniqueURL)
Set if on every createUniqueURL() a new URL is created. | | public void | setHeight(int height)
Set the image height in pixel. | | public void | setHidden(boolean hidden)
Set if control should be rendered with no content. | | public void | setInfoMessage(String infoMessage)
Set the info message that is used for img title attribute and is
also displayed in window.status. | | public void | setMimeType(String mimeType)
Set the mime type for this image, like MIME_TYPE_JPG. | | public void | setRequireRedraw(boolean requireRedraw)
| | public void | setWidth(int width)
Set the image width in pixel. |
| SHAPE_TYPE_CIRCLE | | final public static String SHAPE_TYPE_CIRCLE(Code) | | |
| SHAPE_TYPE_POLY | | final public static String SHAPE_TYPE_POLY(Code) | | |
| SHAPE_TYPE_RECT | | final public static String SHAPE_TYPE_RECT(Code) | | |
| createUniqueURL | | protected boolean createUniqueURL(Code) | | |
| height | | protected int height(Code) | | |
| hidden | | protected boolean hidden(Code) | | |
| width | | protected int width(Code) | | |
| addShape | | public void addShape(String type, String coords, String title, String url)(Code) | | Adds a shape of type SHAPE_TYPE_RECT, ..._CIRLCE or ..._POLY with url and title.
If url is null no "clickable" link is added.
Depending on the shape type the coords follow different syntax:
SHAPE_TYPE_RECT: "x1,y1,x2,y2"
SHAPE_TYPE_CIRCLE: "x,y,r"
SHAPE_TYPE_POLY: "x1,y1[,x2,y2[,...]]"
Parameters:
type -
Parameters:
coords -
Parameters:
url -
Parameters:
title - |
| addShape | | public void addShape(String type, String coords, String title)(Code) | | Same as addShape(type, coords, title, null)
Parameters:
type -
Parameters:
coords -
Parameters:
title - |
| createImageURL | | public String createImageURL()(Code) | | Create a URL to this image.
Current milliseconds is part of that URL is createUniqueURL is set.
|
| getFilename | | abstract public String getFilename()(Code) | | The filename is used in the servlet response and in
the html rendering.
The filename for the created image. |
| getHeight | | public int getHeight()(Code) | | Return the image height in pixel.
|
| getImageOutputStream | | public ByteArrayOutputStream getImageOutputStream()(Code) | | Return the ByteArrayOutputStream renderImage() must write the binary
image data into. Should call reset() to it before creating the image
data again.
|
| getInfoMessage | | public String getInfoMessage()(Code) | | Return the info message that is used for img title attribute and is
also displayed in window.status.
|
| getMimeType | | public String getMimeType()(Code) | | Return the mime type for this image, like MIME_TYPE_JPG.
|
| getShapes | | public List getShapes()(Code) | | Return Collection of Shape objects that had been added with addShape(...).
|
| getWidth | | public int getWidth()(Code) | | Return the image width in pixel.
|
| isCreateUniqueURL | | public boolean isCreateUniqueURL()(Code) | | Return true if on every createUniqueURL() a new URL is created.
Default is false.
|
| isHidden | | public boolean isHidden()(Code) | | Return true if control should be rendered with no content.
Used to render the JavaScript if control should be invisible.
Should be used instead of visible attribute.
|
| renderImage | | abstract public void renderImage() throws IOException(Code) | | Renders the image data to imageOutputStream.
Don't forget to set the appropiate mime type and call
ByteArrayOutputStream.reset() before generating the image data again.
throws:
IOException - |
| setCreateUniqueURL | | public void setCreateUniqueURL(boolean createUniqueURL)(Code) | | Set if on every createUniqueURL() a new URL is created.
Default is false.
Parameters:
createUniqueURL - |
| setHeight | | public void setHeight(int height)(Code) | | Set the image height in pixel.
Parameters:
height - |
| setHidden | | public void setHidden(boolean hidden)(Code) | | Set if control should be rendered with no content.
Used to render the JavaScript if control should be invisible.
Should be used instead of visible attribute.
Parameters:
hidden - |
| setInfoMessage | | public void setInfoMessage(String infoMessage)(Code) | | Set the info message that is used for img title attribute and is
also displayed in window.status.
Parameters:
infoMessage - |
| setMimeType | | public void setMimeType(String mimeType)(Code) | | Set the mime type for this image, like MIME_TYPE_JPG.
Parameters:
mimeType - |
| setRequireRedraw | | public void setRequireRedraw(boolean requireRedraw)(Code) | | |
| setWidth | | public void setWidth(int width)(Code) | | Set the image width in pixel.
Parameters:
width - |
|
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