com.google.gwt.user.client.ui
Class DecoratorPanel
java.lang.Object
com.google.gwt.user.client.ui.UIObject
com.google.gwt.user.client.ui.Widget
com.google.gwt.user.client.ui.Panel
com.google.gwt.user.client.ui.SimplePanel
com.google.gwt.user.client.ui.DecoratorPanel
- All Implemented Interfaces:
- HasAttachHandlers, HasHandlers, EventListener, AcceptsOneWidget, HasOneWidget, HasVisibility, HasWidgets, HasWidgets.ForIsWidget, IsWidget, java.lang.Iterable<Widget>
public class DecoratorPanel
- extends SimplePanel
A SimplePanel
that wraps its contents in stylized boxes, which can be
used to add rounded corners to a Widget
.
This widget will only work in quirks mode in most cases.
Specifically, setting the height or width of the DecoratorPanel will result
in rendering issues.
Wrapping a Widget
in a "9-box" allows users to specify images in each
of the corners and along the four borders. This method allows the content
within the DecoratorPanel
to resize without disrupting the look of
the border. In addition, rounded corners can generally be combined into a
single image file, which reduces the number of downloaded files at startup.
This class also simplifies the process of using AlphaImageLoaders to support
8-bit transparencies (anti-aliasing and shadows) in ie6, which does not
support them normally.
Setting the Size:
If you set the width or height of the DecoratorPanel
, you need to
set the height and width of the middleCenter cell to 100% so that the
middleCenter cell takes up all of the available space. If you do not set the
width and height of the DecoratorPanel
, it will wrap its contents
tightly.
.gwt-DecoratorPanel .middleCenter {
height: 100%;
width: 100%;
}
CSS Style Rules
- .gwt-DecoratorPanel { the panel }
- .gwt-DecoratorPanel .top { the top row }
- .gwt-DecoratorPanel .topLeft { the top left cell }
- .gwt-DecoratorPanel .topLeftInner { the inner element of the cell }
- .gwt-DecoratorPanel .topCenter { the top center cell }
- .gwt-DecoratorPanel .topCenterInner { the inner element of the cell }
- .gwt-DecoratorPanel .topRight { the top right cell }
- .gwt-DecoratorPanel .topRightInner { the inner element of the cell }
- .gwt-DecoratorPanel .middle { the middle row }
- .gwt-DecoratorPanel .middleLeft { the middle left cell }
- .gwt-DecoratorPanel .middleLeftInner { the inner element of the cell }
- .gwt-DecoratorPanel .middleCenter { the middle center cell }
- .gwt-DecoratorPanel .middleCenterInner { the inner element of the cell }
- .gwt-DecoratorPanel .middleRight { the middle right cell }
- .gwt-DecoratorPanel .middleRightInner { the inner element of the cell }
- .gwt-DecoratorPanel .bottom { the bottom row }
- .gwt-DecoratorPanel .bottomLeft { the bottom left cell }
- .gwt-DecoratorPanel .bottomLeftInner { the inner element of the cell }
- .gwt-DecoratorPanel .bottomCenter { the bottom center cell }
- .gwt-DecoratorPanel .bottomCenterInner { the inner element of the cell }
- .gwt-DecoratorPanel .bottomRight { the bottom right cell }
- .gwt-DecoratorPanel .bottomRightInner { the inner element of the cell }
Method Summary |
(package private) static Element |
createTR(java.lang.String styleName)
Create a new row with a specific style name. |
protected Element |
getCellElement(int row,
int cell)
Get a specific Element from the panel. |
protected Element |
getContainerElement()
Override this method to specify that an element other than the root element
be the container for the panel's child widget. |
Methods inherited from class com.google.gwt.user.client.ui.Widget |
addAttachHandler, addBitlessDomHandler, addDomHandler, addHandler, asWidget, asWidgetOrNull, createHandlerManager, delegateEvent, ensureHandlers, fireEvent, getHandlerCount, getHandlerManager, getLayoutData, getParent, isAttached, isOrWasAttached, onAttach, onBrowserEvent, onDetach, onLoad, onUnload, removeFromParent, replaceElement, setLayoutData, setParent, sinkEvents, unsinkEvents |
Methods inherited from class com.google.gwt.user.client.ui.UIObject |
addStyleDependentName, addStyleName, ensureDebugId, ensureDebugId, ensureDebugId, getAbsoluteLeft, getAbsoluteTop, getElement, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, onEnsureDebugId, removeStyleDependentName, removeStyleName, resolvePotentialElement, setElement, setElement, setHeight, setPixelSize, setSize, setStyleDependentName, setStyleName, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkBitlessEvent, toString |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
DecoratorPanel
public DecoratorPanel()
- Create a new
DecoratorPanel
.
DecoratorPanel
DecoratorPanel(java.lang.String[] rowStyles,
int containerIndex)
- Creates a new panel using the specified style names to apply to each row.
Each row will contain three cells (Left, Center, and Right). The Center
cell in the containerIndex row will contain the
Widget
.
- Parameters:
rowStyles
- an array of style names to apply to each rowcontainerIndex
- the index of the container row
createTR
static Element createTR(java.lang.String styleName)
- Create a new row with a specific style name. The row will contain three
cells (Left, Center, and Right), each prefixed with the specified style
name.
This method allows Widgets to reuse the code on a DOM level, without
creating a DecoratorPanel Widget.
- Parameters:
styleName
- the style name
- Returns:
- the new row
Element
getCellElement
protected Element getCellElement(int row,
int cell)
- Get a specific Element from the panel.
- Parameters:
row
- the row indexcell
- the cell index
- Returns:
- the Element at the given row and cell
getContainerElement
protected Element getContainerElement()
- Description copied from class:
SimplePanel
- Override this method to specify that an element other than the root element
be the container for the panel's child widget. This can be useful when you
want to create a simple panel that decorates its contents.
Note that this method continues to return the
Element
class defined in the
User
module to maintain backwards compatibility.
- Overrides:
getContainerElement
in class SimplePanel
- Returns:
- the element to be used as the panel's container