javax.swing.text.html
Class FrameSetView

java.lang.Object
  javax.swing.text.View
      javax.swing.text.CompositeView
          javax.swing.text.BoxView
              javax.swing.text.html.FrameSetView

All Implemented Interfaces:

SwingConstants

class FrameSetView

extends BoxView

Implements a FrameSetView, intended to support the HTML <FRAMESET> tag. Supports the ROWS and COLS attributes.

Author:

Sunita Mani Credit also to the hotjava browser engineers that worked on making the allocation of space algorithms conform to the HTML 4.0 standard and also be netscape compatible.

Field Summary

(package private) int[]	absoluteChildren
(package private) int	absoluteTotals
(package private) String[]	children
(package private) int[]	percentChildren
(package private) int	percentTotals
(package private) int[]	relativeChildren
(package private) int	relativeTotals

Fields inherited from class javax.swing.text.BoxView

Fields inherited from class javax.swing.text.CompositeView

Fields inherited from class javax.swing.text.View

BadBreakWeight, ExcellentBreakWeight, ForcedBreakWeight, GoodBreakWeight, X_AXIS, Y_AXIS

Fields inherited from interface javax.swing.SwingConstants

BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST

Constructor Summary

FrameSetView(Element elem, int axis)
Constructs a FrameSetView for the given element.

Method Summary

protected SizeRequirements[]	getChildRequests(int targetSpan, int axis)
private void	init() Initializes a number of internal state variables that store information about space allocation for the frames contained within the frameset.
protected void	layoutMajorAxis(int targetSpan, int axis, int[] offsets, int[] spans) Perform layout for the major axis of the box (i.e. the axis that it represents).
private int	parseDigits(String mixedStr)
private String[]	parseRowColSpec(HTML.Attribute key) Parses the ROW or COL attributes and returns an array of strings that represent the space distribution.
private void	spread(int targetSpan, int[] span) This method is responsible for returning in span[] the span for each child view along the major axis.

Methods inherited from class javax.swing.text.BoxView

baselineLayout, baselineRequirements, calculateMajorAxisRequirements, calculateMinorAxisRequirements, childAllocation, flipEastAndWestAtEnds, forwardUpdate, getAlignment, getAxis, getChildAllocation, getHeight, getMaximumSpan, getMinimumSpan, getOffset, getPreferredSpan, getResizeWeight, getSpan, getViewAtPoint, getWidth, isAfter, isAllocationValid, isBefore, isLayoutValid, layout, layoutChanged, layoutMinorAxis, modelToView, paint, paintChild, preferenceChanged, replace, setAxis, setSize, viewToModel

Methods inherited from class javax.swing.text.CompositeView

getBottomInset, getInsideAllocation, getLeftInset, getNextEastWestVisualPositionFrom, getNextNorthSouthVisualPositionFrom, getNextVisualPositionFrom, getRightInset, getTopInset, getView, getViewAtPosition, getViewCount, getViewIndex, getViewIndexAtPosition, loadChildren, modelToView, setInsets, setParagraphInsets, setParent

Methods inherited from class javax.swing.text.View

append, breakView, changedUpdate, createFragment, forwardUpdateToView, getAttributes, getBreakWeight, getContainer, getDocument, getElement, getEndOffset, getGraphics, getParent, getStartOffset, getToolTipText, getViewFactory, getViewIndex, insert, insertUpdate, isVisible, modelToView, remove, removeAll, removeUpdate, updateChildren, updateLayout, viewToModel

Methods inherited from class java.lang.Object

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

Field Detail

children

String[] children

percentChildren

int[] percentChildren

absoluteChildren

int[] absoluteChildren

relativeChildren

int[] relativeChildren

percentTotals

int percentTotals

absoluteTotals

int absoluteTotals

relativeTotals

int relativeTotals

Constructor Detail

FrameSetView

public FrameSetView(Element elem,
                    int axis)

Constructs a FrameSetView for the given element.

Parameters:

elem - the element that this view is responsible for

Method Detail

parseRowColSpec

private String[] parseRowColSpec(HTML.Attribute key)

Parses the ROW or COL attributes and returns an array of strings that represent the space distribution.

init

private void init()

Initializes a number of internal state variables that store information about space allocation for the frames contained within the frameset.

layoutMajorAxis

protected void layoutMajorAxis(int targetSpan,
                               int axis,
                               int[] offsets,
                               int[] spans)

Perform layout for the major axis of the box (i.e. the axis that it represents). The results of the layout should be placed in the given arrays which represent the allocations to the children along the major axis.

Overrides:

layoutMajorAxis in class BoxView

Parameters:

targetSpan - the total span given to the view, which whould be used to layout the children

axis - the axis being layed out

offsets - the offsets from the origin of the view for each of the child views; this is a return value and is filled in by the implementation of this method

spans - the span of each child view; this is a return value and is filled in by the implementation of this method

Returns:

the offset and span for each child view in the offsets and spans parameters

getChildRequests

protected SizeRequirements[] getChildRequests(int targetSpan,
                                              int axis)

spread

private void spread(int targetSpan,
                    int[] span)

This method is responsible for returning in span[] the span for each child view along the major axis. it computes this based on the information that extracted from the value of the ROW/COL attribute.

parseDigits

private int parseDigits(String mixedStr)