oracle.ide.ceditor

Class CEScrollPaneLayout

java.lang.Object

javax.swing.ScrollPaneLayout

oracle.ide.ceditor.CEScrollPaneLayout

All Implemented Interfaces:

java.awt.LayoutManager, java.io.Serializable, javax.swing.ScrollPaneConstants

public final class CEScrollPaneLayout
extends javax.swing.ScrollPaneLayout

The CEScrollPaneLayout lays out a custom view that looks like this:

    G XXXXX V
    G XXXXX V
    G XXXXX V
    G XXXXX V
    HHHHHHHHH
 

Where G = Line Gutter, V = Vertical Scroll bar, H = Horizontal Scroll Bar, X = main view. This is so that we don't have blank corners that are unused, and also allows us to make the entire scrollpane non-opaque and leave it to the children to paint in.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.ScrollPaneLayout

javax.swing.ScrollPaneLayout.UIResource

Field Summary

Fields inherited from class javax.swing.ScrollPaneLayout

colHead, hsb, hsbPolicy, lowerLeft, lowerRight, rowHead, upperLeft, upperRight, viewport, vsb, vsbPolicy

Fields inherited from interface javax.swing.ScrollPaneConstants

COLUMN_HEADER, HORIZONTAL_SCROLLBAR, HORIZONTAL_SCROLLBAR_ALWAYS, HORIZONTAL_SCROLLBAR_AS_NEEDED, HORIZONTAL_SCROLLBAR_NEVER, HORIZONTAL_SCROLLBAR_POLICY, LOWER_LEADING_CORNER, LOWER_LEFT_CORNER, LOWER_RIGHT_CORNER, LOWER_TRAILING_CORNER, ROW_HEADER, UPPER_LEADING_CORNER, UPPER_LEFT_CORNER, UPPER_RIGHT_CORNER, UPPER_TRAILING_CORNER, VERTICAL_SCROLLBAR, VERTICAL_SCROLLBAR_ALWAYS, VERTICAL_SCROLLBAR_AS_NEEDED, VERTICAL_SCROLLBAR_NEVER, VERTICAL_SCROLLBAR_POLICY, VIEWPORT

Constructor Summary

Constructors

Constructor and Description
CEScrollPaneLayout()

Method Summary

Modifier and Type	Method and Description
void	layoutContainer(java.awt.Container parent) Lay out the scrollpane according to our custom layout.
java.awt.Dimension	minimumLayoutSize(java.awt.Container parent) The minimum size of a ScrollPane is the size of the insets plus minimum size of the viewport, plus the scrollpane's viewportBorder insets, plus the minimum size of the visible headers, plus the minimum size of the scrollbars whose displayPolicy isn't NEVER.
java.awt.Dimension	preferredLayoutSize(java.awt.Container parent) The preferred size of a ScrollPane is the size of the insets, plus the preferred size of the viewport, plus the preferred size of the visible headers, plus the preferred size of the scrollbars that will appear given the current view and the current scrollbar displayPolicies.
void	syncWithScrollPane(javax.swing.JScrollPane scrollPane) This method must be called after setting a JScrollPanes layout manager.

Methods inherited from class javax.swing.ScrollPaneLayout

addLayoutComponent, addSingletonComponent, getColumnHeader, getCorner, getHorizontalScrollBar, getHorizontalScrollBarPolicy, getRowHeader, getVerticalScrollBar, getVerticalScrollBarPolicy, getViewport, getViewportBorderBounds, removeLayoutComponent, setHorizontalScrollBarPolicy, setVerticalScrollBarPolicy

Methods inherited from class java.lang.Object

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

Constructor Detail

CEScrollPaneLayout

public CEScrollPaneLayout()

Method Detail

syncWithScrollPane

public void syncWithScrollPane(javax.swing.JScrollPane scrollPane)

This method must be called after setting a JScrollPanes layout manager. It initializes all of the internal fields that are ordinarily set by addLayoutComponent().

Overrides:

syncWithScrollPane in class javax.swing.ScrollPaneLayout

preferredLayoutSize

public java.awt.Dimension preferredLayoutSize(java.awt.Container parent)

The preferred size of a ScrollPane is the size of the insets, plus the preferred size of the viewport, plus the preferred size of the visible headers, plus the preferred size of the scrollbars that will appear given the current view and the current scrollbar displayPolicies.

Specified by:

preferredLayoutSize in interface java.awt.LayoutManager

Overrides:

preferredLayoutSize in class javax.swing.ScrollPaneLayout

Parameters:

parent - the Container that will be laid out

Returns:

a Dimension object specifying the preferred size of the viewport and any scrollbars.

See Also:

ViewportLayout, LayoutManager

minimumLayoutSize

public java.awt.Dimension minimumLayoutSize(java.awt.Container parent)

The minimum size of a ScrollPane is the size of the insets plus minimum size of the viewport, plus the scrollpane's viewportBorder insets, plus the minimum size of the visible headers, plus the minimum size of the scrollbars whose displayPolicy isn't NEVER.

Specified by:

minimumLayoutSize in interface java.awt.LayoutManager

Overrides:

minimumLayoutSize in class javax.swing.ScrollPaneLayout

Parameters:

parent - the Container that will be laid out

Returns:

a Dimension object specifying the minimum size

layoutContainer

public void layoutContainer(java.awt.Container parent)

Lay out the scrollpane according to our custom layout.

Specified by:

layoutContainer in interface java.awt.LayoutManager

Overrides:

layoutContainer in class javax.swing.ScrollPaneLayout

Parameters:

parent - the Container to lay out