An absolute panel positions all of its children absolutely, allowing them to overlap.
Here is an example of how to use this widget:
function doGet() {
var app = UiApp.createApplication();
var button = app.createButton("a button");
var panel = app.createAbsolutePanel();
// add a widget at position (10, 20)
panel.add(button, 10, 20);
app.add(panel);
return app;
}
Internally, UiApp widgets are built on top of the Google Web Toolkit, and it can sometimes be helpful to look at the GWT documentation directly. You can find the AbsolutePanel documentation here.
Methods
Detailed documentation
add(widget)
Add a widget to the AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
widget | Widget | the widget to add. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
add(widget, left, top)
Add a widget to the AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
widget | Widget | the widget to add. |
left | Integer | the widget's left position in pixels. |
top | Integer | the widget's top position in pixels. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
addStyleDependentName(styleName)
Sets the dependent style name of this AbsolutePanel.
This is useful for debugging but is otherwise of minimal use since there is no way to use custom stylesheets in UiApp.
Parameters
| Name | Type | Description |
|---|---|---|
styleName | String | the new style name. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
addStyleName(styleName)
Adds a style name to this AbsolutePanel.
This is useful for debugging but is otherwise of minimal use since there is no way to use custom stylesheets in UiApp.
Parameters
| Name | Type | Description |
|---|---|---|
styleName | String | the new style name. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
clear()
Remove all widgets from the AbsolutePanel.
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
getId()
Returns the id that has been assigned to this object.
This can be used in conjunction with app.getElementById() to retrieve a reference to this object.
Return
String — the id that has been assigned to this object
getType()
Gets the type of this object.
Return
String — the object type
remove(index)
Remove the widget with the given index from the AbsolutePanel. Indexes begin from 0.
This will fail if the index is greater than or equal to the number of elements in the
AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
index | Integer | the index of the widget to remove. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
remove(widget)
Remove the given widget from the AbsolutePanel. This will fail if the widget is not
actually a child of the AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
widget | Widget | the widget to remove. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setHeight(height)
Sets the height of this AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
height | String | the new height in any CSS unit such as "10px" or "50%". |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setId(id)
Sets the id of this AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
id | String | the new id, which can be used to retrieve the AbsolutePanel from
app.getElementById(id). |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setPixelSize(width, height)
Sets the size of this AbsolutePanel in pixels.
Parameters
| Name | Type | Description |
|---|---|---|
width | Integer | the new width in pixels. |
height | Integer | the new height in pixels. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setSize(width, height)
Sets the size of this AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
width | String | the new width in any CSS unit such as "10px" or "50%". |
height | String | the new height in any CSS unit such as "10px" or "50%". |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setStyleAttribute(attribute, value)
Sets one of this AbsolutePanel's style attributes to a new value. Valid attributes are
listed here; the values for each attribute are
the same as those available in CSS style sheets.
// Change the widget's background to black and text color to green.
widget.setStyleAttribute("background", "black")
.setStyleAttribute("color", "green");
Parameters
| Name | Type | Description |
|---|---|---|
attribute | String | the CSS attribute, in camel-case ("fontSize", not "font-size"), as listed here |
value | String | the CSS value |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setStyleAttributes(attributes)
Sets this AbsolutePanel's style attributes. This is a convenience method that is equivalent
to calling setStyleAttribute with every key/value pair in the attributes object. Valid
attributes are listed here; the values for each
attribute are the same as those available in CSS style sheets.
// Change the widget's background to black and text color to green.
widget.setStyleAttributes({background: "black", color: "green"});
Parameters
| Name | Type | Description |
|---|---|---|
attributes | Object | an object of key/value pairs for the CSS attributes and values to set; valid attributes are listed here |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setStyleName(styleName)
Sets the style name of this AbsolutePanel.
This is useful for debugging but is otherwise of minimal use since there is no way to use custom stylesheets in UiApp.
Parameters
| Name | Type | Description |
|---|---|---|
styleName | String | the new style name. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setStylePrimaryName(styleName)
Sets the primary style name of this AbsolutePanel.
This is useful for debugging but is otherwise of minimal use since there is no way to use custom stylesheets in UiApp.
Parameters
| Name | Type | Description |
|---|---|---|
styleName | String | the new style name. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setTag(tag)
Sets the text tag of this AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
tag | String | the new text tag, which can be anything you wish to store with the widget. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setTitle(title)
Sets the hover title of this AbsolutePanel.
Not all browsers will show this.
Parameters
| Name | Type | Description |
|---|---|---|
title | String | the hover title. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setVisible(visible)
Sets whether this AbsolutePanel is visible.
Parameters
| Name | Type | Description |
|---|---|---|
visible | Boolean | whether this AbsolutePanel should be visible or not. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setWidgetPosition(widget, left, top)
Set the position of a widget that is already a child of the AbsolutePanel. This
will cause an error if the widget is not currently in the panel.
Parameters
| Name | Type | Description |
|---|---|---|
widget | Widget | the widget to position. |
left | Integer | the widget's left position in pixels. |
top | Integer | the widget's top position in pixels. |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.
setWidth(width)
Sets the width of this AbsolutePanel.
Parameters
| Name | Type | Description |
|---|---|---|
width | String | the new width in any CSS unit such as "10px" or "50%". |
Return
AbsolutePanel — the AbsolutePanel itself, useful for chaining.