: Class FormRowLayout

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org.PingOO.DLAI.lib.PWidget
Class FormRowLayout

java.lang.Object
  |
  +--org.PingOO.DLAI.lib.PWidget.FormRowLayout

Direct Known Subclasses:: FormLayout.RowLeader

class FormRowLayout
extends java.lang.Object

An abstract layout manager to set the horizontal positions of a set of components based on unique, ordered, non-sequential row numbers, layout size, and component minimum and preferred sizes.

Basic Design:
Each FormRowLayout is responsible for a single row of components.
Each component is stored in a component layout, which performs the actual layout functions.
Rows are linked together in a doubly linked list.
Rows use the same minimum and preferred location floating point scheme as ColumnLayout, except that they will not expand to fill extra space.

Since:: PingOO 2.0
Version:: 2.0
Author:: Byron Hawkins (bhawkins@oz.net), Fabrice Bouyé (bouye@cur-archamps.fr)
See Also:: PInternalFrame

Inner Class Summary
`private class`	`FormRowLayout.ComponentLayout`

Field Summary
`static int`	`ALIGN_BOTTOM`
`static int`	`ALIGN_CENTER`
`static int`	`ALIGN_TOP`
`private FormLayout.ExtendedVector`	`m_components` the components in this layout.
`(package private) FormLayout`	`m_containingLayout`
`protected int`	`m_currLocation`
`private int`	`m_currSize`
`private FormRowLayout`	`m_followingRow` The row above this.
`private int`	`m_index` row index.
`private int`	`m_justification` How to position components that are allotted extra space (components will never fill the extra space).
`protected int`	`m_minLocation`
`private int`	`m_minSize`
`protected int`	`m_prefLocation`
`private int`	`m_prefSize`
`private FormRowLayout`	`m_previousRow` the row below this.

Constructor Summary
`FormRowLayout(int index, FormLayout containingLayout)`

Method Summary
`void`	`add(java.awt.Component addMe)`
`void`	`addFloater(java.awt.Component addMe, int anchorRow)`
`void`	`doLayout()`
`protected void`	`findMinimumLocation()` determine m_minLocation and m_minSize
`protected void`	`findPreferredLocation()` Determine m_prefLocation and m_prefSize.
`int`	`getIndex()`
`protected int`	`getMinLowerBoundary()`
`protected int`	`getPrefLowerBoundary()`
`FormRowLayout`	`getRow(int row)` may create the row requested.
`protected int`	`getUpperBoundary()`
`protected void`	`removeIfEmpty()` If this has no more components, remove this.
`void`	`removeLayoutComponent(java.awt.Component removeMe)`
`private void`	`setAnchor(FormRowLayout.ComponentLayout addMe)`
`protected void`	`setLocation(double pct)`
`protected void`	`setMinimumLocation(int minLoc)` Hook for subclasses
`protected void`	`setPreferredLocation(int prefLoc)` Hook for subclasses.

Methods inherited from class java.lang.Object

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

Field Detail

m_components

private FormLayout.ExtendedVector m_components

the components in this layout.

m_previousRow

private FormRowLayout m_previousRow

the row below this.

m_followingRow

private FormRowLayout m_followingRow

The row above this.

m_containingLayout

FormLayout m_containingLayout

m_minLocation

protected int m_minLocation

m_prefLocation

protected int m_prefLocation

m_currLocation

protected int m_currLocation

m_minSize

private int m_minSize

m_prefSize

private int m_prefSize

m_currSize

private int m_currSize

m_justification

private int m_justification

How to position components that are allotted extra space (components will never fill the extra space).

m_index

private int m_index

row index.

ALIGN_TOP

public static final int ALIGN_TOP

ALIGN_CENTER

public static final int ALIGN_CENTER

ALIGN_BOTTOM

public static final int ALIGN_BOTTOM

Constructor Detail

FormRowLayout

public FormRowLayout(int index,
                     FormLayout containingLayout)

Parameters:: index -; containingLayout -

Method Detail

getIndex

public int getIndex()

add

public void add(java.awt.Component addMe)

addFloater

public void addFloater(java.awt.Component addMe,
                       int anchorRow)

setAnchor

private void setAnchor(FormRowLayout.ComponentLayout addMe)

getRow

public FormRowLayout getRow(int row)

may create the row requested.

removeLayoutComponent

public void removeLayoutComponent(java.awt.Component removeMe)

removeIfEmpty

protected void removeIfEmpty()

If this has no more components, remove this.

findPreferredLocation

protected void findPreferredLocation()

Determine m_prefLocation and m_prefSize.

findMinimumLocation

protected void findMinimumLocation()

determine m_minLocation and m_minSize

setPreferredLocation

protected void setPreferredLocation(int prefLoc)

Hook for subclasses.

setMinimumLocation

protected void setMinimumLocation(int minLoc)

Hook for subclasses

setLocation

protected void setLocation(double pct)

getPrefLowerBoundary

protected int getPrefLowerBoundary()

getMinLowerBoundary

protected int getMinLowerBoundary()

getUpperBoundary

protected int getUpperBoundary()

doLayout

public void doLayout()