ej.widget.container

Class Flow

java.lang.Object

ej.mwt.Widget

ej.mwt.Container

ej.widget.container.Flow

public class Flow
extends ej.mwt.Container

Lays out any number of children horizontally or vertically, using multiple rows if necessary.

As many children as possible will be laid out on the first row. If the next remaining child does not fit on the row, a new row is created in order to lay out the remaining children. This process is repeated until all children are laid out. To know how many children can be laid out in a single row, the optimal size of the children is used.

In a horizontal flow, all the widgets of the same row will have the same height. In a vertical flow, all the widgets of the same row will have the same width.

Horizontal:

Vertical:

Field Summary

Fields inherited from class ej.mwt.Widget

NO_CONSTRAINT

Constructor Summary

Constructors

Constructor and Description
Flow(boolean orientation) Creates a flow specifying its orientation.

Method Summary

Modifier and Type	Method and Description
void	addChild(ej.mwt.Widget child)
protected void	computeContentOptimalSize(ej.mwt.util.Size size)
boolean	getOrientation() Gets the orientation of this flow.
void	insertChild(ej.mwt.Widget child, int index)
protected void	layOutChildren(int contentWidth, int contentHeight)
void	removeAllChildren()
void	removeChild(ej.mwt.Widget child)
void	replaceChild(int index, ej.mwt.Widget child)
void	setOrientation(boolean orientation) Sets the orientation of this flow.

Methods inherited from class ej.mwt.Container

changeChildIndex, computeChildOptimalSize, getChild, getChildIndex, getChildren, getChildrenCount, getContentBounds, getContentHeight, getContentWidth, getContentX, getContentY, getWidgetAt, layOutChild, renderChild, renderContent, setHiddenChild, setHiddenChildren, setShownChild, setShownChildren, updateStyle

Methods inherited from class ej.mwt.Widget

addClassSelector, contains, containsWidget, getAbsoluteX, getAbsoluteY, getDesktop, getHeight, getParent, getStyle, getWidth, getX, getY, handleEvent, hasClassSelector, isAttached, isEnabled, isInState, isShown, isTransparent, onAttached, onDetached, onHidden, onLaidOut, onShown, removeAllClassSelectors, removeClassSelector, render, requestLayOut, requestRender, requestRender, setClassSelectors, setEnabled, setPosition, setStyle

Methods inherited from class java.lang.Object

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

Constructor Detail

Flow

public Flow(boolean orientation)

Creates a flow specifying its orientation.

Parameters:

orientation - the orientation of the flow (see LayoutOrientation).

Method Detail

setOrientation

public void setOrientation(boolean orientation)

Sets the orientation of this flow.

Parameters:

orientation - the orientation to set (see LayoutOrientation).

getOrientation

public boolean getOrientation()

Gets the orientation of this flow.

Returns:

the orientation of this flow (see LayoutOrientation).

addChild

public void addChild(ej.mwt.Widget child)

Overrides:

addChild in class ej.mwt.Container

removeChild

public void removeChild(ej.mwt.Widget child)

Overrides:

removeChild in class ej.mwt.Container

insertChild

public void insertChild(ej.mwt.Widget child,
                        int index)

Overrides:

insertChild in class ej.mwt.Container

replaceChild

public void replaceChild(int index,
                         ej.mwt.Widget child)

Overrides:

replaceChild in class ej.mwt.Container

removeAllChildren

public void removeAllChildren()

Overrides:

removeAllChildren in class ej.mwt.Container

computeContentOptimalSize

protected void computeContentOptimalSize(ej.mwt.util.Size size)

Specified by:

computeContentOptimalSize in class ej.mwt.Widget

layOutChildren

protected void layOutChildren(int contentWidth,
                              int contentHeight)

Specified by:

layOutChildren in class ej.mwt.Container