Splitter

From Documentation

Splitter

Employment/Purpose

An element which should appear before or after an element inside a box (Box, Vbox and Hbox).

When the splitter is dragged, the sibling elements of the splitter are resized. If getCollapse() is true, a grippy in placed inside the splitter, and one sibling element of the splitter is collapsed when the grippy is clicked. Using the Splitter in combination with hbox/vbox allows resizing - making it draggable.

Example

ZKComRef Splitter Examples.PNG

<hbox spacing="0" width="100%">
	<vbox height="200px">
		Column 1-1: The left-top box. To know whether a splitter is collapsed,
		you can listen to the onOpen event.
		<splitter collapse="after" />
		Column 1-2: You can enforce to open or collapse programming by calling
		setOpen method.
	</vbox>
	<splitter collapse="before" />
	Column 2: Whether a splitter allows users to open or collapse depending
	on the collapse attribue.
</hbox>

Properties and Features

Collapse

The collapse property (Splitter.setCollapse(String)) specifies which side of the splitter is collapsed when its grippy (button) is clicked. If this property is not specified, the splitter will not cause a collapse (and the grippy/button won't appear).

Allowed values and their meaning are as follows.

Value
Description
none No collapsing occurs.
before When the grippy is clicked, the element immediately before the splitter in the same parent is collapsed so that its width or height is 0.
after When the grippy is clicked, the element immediately after the splitter in the same parent is collapsed so that its width or height is 0.

Open

To know whether a splitter is collapsed, you can check the value of the open property (Splitter.isOpen()). To open or collapse dynamically, you are able to set the value of the open property (Splitter.setOpen(boolean)).

onOpen Event

When a splitter is collapsed or opened by a user, the onOpen event (OpenEvent) is sent to the application.

OS Styling

If you want to change the styling to be more similar to OS's look as follows.

DrSplitterOS.png

You could specify HtmlBasedComponent.setZclass(String) with z-splitter-os-ver or z-splitter-os-hor, depending on the orient is vertical or horizontal.

Here is an example that switches the styling between the default and OS-look:

<window>
	<panel title="Splitter" border="normal" width="500px">
		<panelchildren>
			<hbox spacing="0" width="100%" height="100%">
				<vbox spacing="0" width="100%" heights="60px,60px">
					Column 1-1: The left-top box. To know whether a splitter
					is collapsed, you can listen to the onOpen event.
					<splitter id="s1" collapse="before"/>
					Column 1-2: You can enforce to open or collapse programming
					by calling setOpen method.
				</vbox>
				<splitter id="s2" collapse="before"/>
				Column 2: Whether a splitter allows users to open or collapse
				depending on the collapse attribue.
			</hbox>
		</panelchildren>
	</panel>
	<button label="change style">
		<attribute name="onClick">
		if ("z-splitter-ver".equals(s1.getZclass()))
			s1.setZclass("z-splitter-os-ver");
		else
			s1.setZclass("z-splitter-ver");
		if ("z-splitter-hor".equals(s2.getZclass()))
			s2.setZclass("z-splitter-os-hor");
		else
			s2.setZclass("z-splitter-hor");
		</attribute>
	</button>
</window>

Supported Events

Name
Event Type
onOpen
Event: OpenEvent

When a splitter is collapsed or opened by a user, the onOpen event is sent to the application.

Supported Molds

Available molds of a component are defined in lang.xml embedded in zul.jar.

Name
Snapshot
default
Splitter mold default.png
os
Splitter mold os.png

Supported Children

*NONE

Use Cases

Version Description Example Location
5.0 Used to seperate contents within hbox/vbox. http://www.zkoss.org/zksandbox/userguide/#l13

Version History

Last Update : 2022/01/12


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Copyright © Potix Corporation. This article is licensed under GNU Free Documentation License.