/*
* {{{ header & license
* Copyright (c) 2004, 2005 Joshua Marinacci
* Copyright (c) 2006, 2007 Wisconsin Court System
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* }}}
*/
package org.xhtmlrenderer.render;
import java.awt.Rectangle;
import java.awt.Shape;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Level;
import org.w3c.dom.Element;
import org.xhtmlrenderer.css.constants.CSSName;
import org.xhtmlrenderer.css.constants.IdentValue;
import org.xhtmlrenderer.css.parser.FSRGBColor;
import org.xhtmlrenderer.css.style.CalculatedStyle;
import org.xhtmlrenderer.css.style.CssContext;
import org.xhtmlrenderer.layout.BoxCollector;
import org.xhtmlrenderer.layout.InlineBoxing;
import org.xhtmlrenderer.layout.InlinePaintable;
import org.xhtmlrenderer.layout.Layer;
import org.xhtmlrenderer.layout.LayoutContext;
import org.xhtmlrenderer.layout.PaintingInfo;
import org.xhtmlrenderer.util.XRLog;
/**
* A line box contains a single line of text (or other inline content). It
* is created during layout. It also tracks floated and absolute content
* added while laying out the line.
*/
public class LineBox extends Box implements InlinePaintable {
private static final float JUSTIFY_NON_SPACE_SHARE = 0.20f;
private static final float JUSTIFY_SPACE_SHARE = 1 - JUSTIFY_NON_SPACE_SHARE;
private boolean _containsContent;
private boolean _containsBlockLevelContent;
private FloatDistances _floatDistances;
private List _textDecorations;
private int _paintingTop;
private int _paintingHeight;
private List _nonFlowContent;
private MarkerData _markerData;
private boolean _containsDynamicFunction;
private int _contentStart;
private int _baseline;
private JustificationInfo _justificationInfo;
public LineBox() {
}
public String dump(LayoutContext c, String indent, int which) {
if (which != Box.DUMP_RENDER) {
throw new IllegalArgumentException();
}
StringBuffer result = new StringBuffer(indent);
result.append(this);
result.append('\n');
dumpBoxes(c, indent, getNonFlowContent(), Box.DUMP_RENDER, result);
if (getNonFlowContent().size() > 0 ) {
result.append('\n');
}
dumpBoxes(c, indent, getChildren(), Box.DUMP_RENDER, result);
return result.toString();
}
public String toString() {
return "LineBox: (" + getAbsX() + "," + getAbsY() + ")->(" + getWidth() + "," + getHeight() + ")";
}
public Rectangle getMarginEdge(CssContext cssCtx, int tx, int ty) {
Rectangle result = new Rectangle(getX(), getY(), getContentWidth(), getHeight());
result.translate(tx, ty);
return result;
}
public void paintInline(RenderingContext c) {
if (! getParent().getStyle().isVisible()) {
return;
}
if (isContainsDynamicFunction()) {
lookForDynamicFunctions(c);
int totalLineWidth = InlineBoxing.positionHorizontally(c, this, 0);
setContentWidth(totalLineWidth);
calcChildLocations();
align(true);
calcPaintingInfo(c, false);
}
if (_textDecorations != null) {
c.getOutputDevice().drawTextDecoration(c, this);
}
if (c.debugDrawLineBoxes()) {
c.getOutputDevice().drawDebugOutline(c, this, FSRGBColor.GREEN);
}
}
private void lookForDynamicFunctions(RenderingContext c) {
if (getChildCount() > 0) {
for (int i = 0; i < getChildCount(); i++) {
Box b = (Box)getChild(i);
if (b instanceof InlineLayoutBox) {
((InlineLayoutBox)b).lookForDynamicFunctions(c);
}
}
}
}
public boolean isFirstLine() {
Box parent = getParent();
return parent != null && parent.getChildCount() > 0 && parent.getChild(0) == this;
}
public void prunePendingInlineBoxes() {
if (getChildCount() > 0) {
for (int i = getChildCount() - 1; i >= 0; i--) {
Box b = (Box)getChild(i);
if (! (b instanceof InlineLayoutBox)) {
break;
}
InlineLayoutBox iB = (InlineLayoutBox)b;
iB.prunePending();
if (iB.isPending()) {
removeChild(i);
}
}
}
}
public boolean isContainsContent() {
return _containsContent;
}
public void setContainsContent(boolean containsContent) {
_containsContent = containsContent;
}
public void align(boolean dynamic) {
IdentValue align = getParent().getStyle().getIdent(CSSName.TEXT_ALIGN);
int calcX = 0;
if (align == IdentValue.LEFT || align == IdentValue.JUSTIFY) {
int floatDistance = getFloatDistances().getLeftFloatDistance();
calcX = getContentStart() + floatDistance;
if (align == IdentValue.JUSTIFY && dynamic) {
justify();
}
} else if (align == IdentValue.CENTER) {
int leftFloatDistance = getFloatDistances().getLeftFloatDistance();
int rightFloatDistance = getFloatDistances().getRightFloatDistance();
int midpoint = leftFloatDistance +
(getParent().getContentWidth() - leftFloatDistance - rightFloatDistance) / 2;
calcX = midpoint - (getContentWidth() + getContentStart()) / 2;
} else if (align == IdentValue.RIGHT) {
int floatDistance = getFloatDistances().getRightFloatDistance();
calcX = getParent().getContentWidth() - floatDistance - getContentWidth();
}
if (calcX != getX()) {
setX(calcX);
calcCanvasLocation();
calcChildLocations();
}
}
public void justify() {
if (! isLastLineWithContent()) {
int leftFloatDistance = getFloatDistances().getLeftFloatDistance();
int rightFloatDistance = getFloatDistances().getRightFloatDistance();
int available = getParent().getContentWidth() -
leftFloatDistance - rightFloatDistance - getContentStart();
if (available > getContentWidth()) {
int toAdd = available - getContentWidth();
CharCounts counts = countJustifiableChars();
JustificationInfo info = new JustificationInfo();
if (! getParent().getStyle().isIdent(CSSName.LETTER_SPACING, IdentValue.NORMAL)) {
info.setNonSpaceAdjust(0.0f);
info.setSpaceAdjust((float)toAdd / counts.getSpaceCount());
} else {
if (counts.getNonSpaceCount() > 1) {
info.setNonSpaceAdjust((float)toAdd * JUSTIFY_NON_SPACE_SHARE / (counts.getNonSpaceCount()-1));
} else {
info.setNonSpaceAdjust(0.0f);
}
if (counts.getSpaceCount() > 0) {
info.setSpaceAdjust((float)toAdd * JUSTIFY_SPACE_SHARE / counts.getSpaceCount());
} else {
info.setSpaceAdjust(0.0f);
}
}
adjustChildren(info);
setJustificationInfo(info);
}
}
}
private void adjustChildren(JustificationInfo info) {
float adjust = 0.0f;
for (Iterator i = getChildIterator(); i.hasNext(); ) {
Box b = (Box)i.next();
b.setX(b.getX() + Math.round(adjust));
if (b instanceof InlineLayoutBox) {
adjust += ((InlineLayoutBox)b).adjustHorizontalPosition(info, adjust);
}
}
calcChildLocations();
}
private boolean isLastLineWithContent() {
LineBox current = (LineBox)getNextSibling();
while (current != null) {
if (current.isContainsContent()) {
return false;
} else {
current = (LineBox)current.getNextSibling();
}
}
return true;
}
private CharCounts countJustifiableChars() {
CharCounts result = new CharCounts();
for (Iterator i = getChildIterator(); i.hasNext(); ) {
Box b = (Box)i.next();
if (b instanceof InlineLayoutBox) {
((InlineLayoutBox)b).countJustifiableChars(result);
}
}
return result;
}
public FloatDistances getFloatDistances() {
return _floatDistances;
}
public void setFloatDistances(FloatDistances floatDistances) {
_floatDistances = floatDistances;
}
public boolean isContainsBlockLevelContent() {
return _containsBlockLevelContent;
}
public void setContainsBlockLevelContent(boolean containsBlockLevelContent) {
_containsBlockLevelContent = containsBlockLevelContent;
}
public boolean intersects(CssContext cssCtx, Shape clip) {
return clip == null || (intersectsLine(cssCtx, clip) ||
(isContainsBlockLevelContent() && intersectsInlineBlocks(cssCtx, clip)));
}
private boolean intersectsLine(CssContext cssCtx, Shape clip) {
Rectangle result = getPaintingClipEdge(cssCtx);
return clip.intersects(result);
}
public Rectangle getPaintingClipEdge(CssContext cssCtx) {
Box parent = getParent();
Rectangle result = null;
if (parent.getStyle().isIdent(
CSSName.FS_TEXT_DECORATION_EXTENT, IdentValue.BLOCK) ||
getJustificationInfo() != null) {
result = new Rectangle(
getAbsX(), getAbsY() + _paintingTop,
parent.getAbsX() + parent.getTx() + parent.getContentWidth() - getAbsX(),
_paintingHeight);
} else {
result = new Rectangle(
getAbsX(), getAbsY() + _paintingTop, getContentWidth(), _paintingHeight);
}
return result;
}
private boolean intersectsInlineBlocks(CssContext cssCtx, Shape clip) {
for (int i = 0; i < getChildCount(); i++) {
Box child = (Box)getChild(i);
if (child instanceof InlineLayoutBox) {
boolean possibleResult = ((InlineLayoutBox)child).intersectsInlineBlocks(
cssCtx, clip);
if (possibleResult) {
return true;
}
} else {
BoxCollector collector = new BoxCollector();
if (collector.intersectsAny(cssCtx, clip, child)) {
return true;
}
}
}
return false;
}
public List getTextDecorations() {
return _textDecorations;
}
public void setTextDecorations(List textDecorations) {
_textDecorations = textDecorations;
}
public int getPaintingHeight() {
return _paintingHeight;
}
public void setPaintingHeight(int paintingHeight) {
_paintingHeight = paintingHeight;
}
public int getPaintingTop() {
return _paintingTop;
}
public void setPaintingTop(int paintingTop) {
_paintingTop = paintingTop;
}
public void addAllChildren(List list, Layer layer) {
for (int i = 0; i < getChildCount(); i++) {
Box child = getChild(i);
if (getContainingLayer() == layer) {
list.add(child);
if (child instanceof InlineLayoutBox) {
((InlineLayoutBox)child).addAllChildren(list, layer);
}
}
}
}
public List getNonFlowContent() {
return _nonFlowContent == null ? Collections.EMPTY_LIST : _nonFlowContent;
}
public void addNonFlowContent(BlockBox box) {
if (_nonFlowContent == null) {
_nonFlowContent = new ArrayList();
}
_nonFlowContent.add(box);
}
public void reset(LayoutContext c) {
for (int i = 0; i < getNonFlowContent().size(); i++) {
Box content = (Box)getNonFlowContent().get(i);
content.reset(c);
}
if (_markerData != null) {
_markerData.restorePreviousReferenceLine(this);
}
super.reset(c);
}
public void calcCanvasLocation() {
Box parent = getParent();
if (parent == null) {
XRLog.layout(Level.WARNING, "calcCanvasLocation() called with no parent");
}
setAbsX(parent.getAbsX() + parent.getTx() + getX());
setAbsY(parent.getAbsY() + parent.getTy() + getY());
}
public void calcChildLocations() {
super.calcChildLocations();
// Update absolute boxes too. Not necessary most of the time, but
// it doesn't hurt (revisit this)
for (int i = 0; i < getNonFlowContent().size(); i++) {
Box content = (Box)getNonFlowContent().get(i);
if (content.getStyle().isAbsolute()) {
content.calcCanvasLocation();
content.calcChildLocations();
}
}
}
public MarkerData getMarkerData() {
return _markerData;
}
public void setMarkerData(MarkerData markerData) {
_markerData = markerData;
}
public boolean isContainsDynamicFunction() {
return _containsDynamicFunction;
}
public void setContainsDynamicFunction(boolean containsPageCounter) {
_containsDynamicFunction |= containsPageCounter;
}
public int getContentStart() {
return _contentStart;
}
public void setContentStart(int contentOffset) {
_contentStart = contentOffset;
}
public InlineText findTrailingText() {
if (getChildCount() == 0) {
return null;
}
for (int offset = getChildCount() - 1; offset >= 0; offset--) {
Box child = getChild(offset);
if (child instanceof InlineLayoutBox) {
InlineText result = ((InlineLayoutBox)child).findTrailingText();
if (result != null && result.isEmpty()) {
continue;
}
return result;
} else {
return null;
}
}
return null;
}
public void trimTrailingSpace(LayoutContext c) {
InlineText text = findTrailingText();
if (text != null) {
InlineLayoutBox iB = text.getParent();
IdentValue whitespace = iB.getStyle().getWhitespace();
if (whitespace == IdentValue.NORMAL || whitespace == IdentValue.NOWRAP) {
text.trimTrailingSpace(c);
}
}
}
public Box find(CssContext cssCtx, int absX, int absY, boolean findAnonymous) {
PaintingInfo pI = getPaintingInfo();
if (pI !=null && ! pI.getAggregateBounds().contains(absX, absY)) {
return null;
}
Box result = null;
for (int i = 0; i < getChildCount(); i++) {
Box child = getChild(i);
result = child.find(cssCtx, absX, absY, findAnonymous);
if (result != null) {
return result;
}
}
return null;
}
public int getBaseline() {
return _baseline;
}
public void setBaseline(int baseline) {
_baseline = baseline;
}
public boolean isContainsOnlyBlockLevelContent() {
if (! isContainsBlockLevelContent()) {
return false;
}
for (int i = 0; i < getChildCount(); i++) {
Box b = (Box)getChild(i);
if (! (b instanceof BlockBox)) {
return false;
}
}
return true;
}
public Box getRestyleTarget() {
return getParent();
}
public void restyle(LayoutContext c) {
Box parent = getParent();
Element e = parent.getElement();
if (e != null) {
CalculatedStyle style = c.getSharedContext().getStyle(e, true);
setStyle(style.createAnonymousStyle(IdentValue.BLOCK));
}
restyleChildren(c);
}
public boolean isContainsVisibleContent() {
for (int i = 0; i < getChildCount(); i++) {
Box b = getChild(i);
if (b instanceof BlockBox) {
if (b.getWidth() > 0 || b.getHeight() > 0) {
return true;
}
} else {
boolean maybeResult = ((InlineLayoutBox)b).isContainsVisibleContent();
if (maybeResult) {
return true;
}
}
}
return false;
}
public void clearSelection(List modified) {
for (Iterator i = getNonFlowContent().iterator(); i.hasNext(); ) {
Box b = (Box)i.next();
b.clearSelection(modified);
}
super.clearSelection(modified);
}
public void selectAll() {
for (Iterator i = getNonFlowContent().iterator(); i.hasNext(); ) {
BlockBox box = (BlockBox)i.next();
box.selectAll();
}
super.selectAll();
}
public void collectText(RenderingContext c, StringBuffer buffer) throws IOException {
for (Iterator i = getNonFlowContent().iterator(); i.hasNext(); ) {
Box b = (Box)i.next();
b.collectText(c, buffer);
}
if (isContainsDynamicFunction()) {
lookForDynamicFunctions(c);
}
super.collectText(c, buffer);
}
public void exportText(RenderingContext c, Writer writer) throws IOException {
int baselinePos = getAbsY() + getBaseline();
if (baselinePos >= c.getPage().getBottom() && isInDocumentFlow()) {
exportPageBoxText(c, writer, baselinePos);
}
for (Iterator i = getNonFlowContent().iterator(); i.hasNext(); ) {
Box b = (Box)i.next();
b.exportText(c, writer);
}
if (isContainsContent()) {
StringBuffer result = new StringBuffer();
collectText(c, result);
writer.write(result.toString().trim());
writer.write(LINE_SEPARATOR);
}
}
public void analyzePageBreaks(LayoutContext c, ContentLimitContainer container) {
container.updateTop(c, getAbsY());
container.updateBottom(c, getAbsY() + getHeight());
}
public void checkPagePosition(LayoutContext c, boolean alwaysBreak) {
if (! c.isPageBreaksAllowed()) {
return;
}
PageBox pageBox = c.getRootLayer().getFirstPage(c, this);
if (pageBox != null) {
boolean needsPageBreak =
alwaysBreak || getAbsY() + getHeight() >= pageBox.getBottom() - c.getExtraSpaceBottom();
if (needsPageBreak) {
forcePageBreakBefore(c, IdentValue.ALWAYS, false);
calcCanvasLocation();
} else if (pageBox.getTop() + c.getExtraSpaceTop() > getAbsY()) {
int diff = pageBox.getTop() + c.getExtraSpaceTop() - getAbsY();
setY(getY() + diff);
calcCanvasLocation();
}
}
}
public JustificationInfo getJustificationInfo() {
return _justificationInfo;
}
private void setJustificationInfo(JustificationInfo justificationInfo) {
_justificationInfo = justificationInfo;
}
}
/*
* $Id: LineBox.java,v 1.72 2008/07/27 00:21:47 peterbrant Exp $
*
* $Log: LineBox.java,v $
* Revision 1.72 2008/07/27 00:21:47 peterbrant
* Implement CMYK color support for PDF output, starting with patch from Mykola Gurov / Banish java.awt.Color from FS core layout classes
*
* Revision 1.71 2008/02/11 17:52:25 peterbrant
* Fix divide by zero error in justification algorithm
*
* Revision 1.70 2008/01/26 01:53:44 peterbrant
* Implement partial support for leader and target-counter (patch from Karl Tauber)
*
* Revision 1.69 2007/08/30 23:14:28 peterbrant
* Implement text-align: justify
*
* Revision 1.68 2007/08/29 22:18:18 peterbrant
* Experiment with text justification
*
* Revision 1.67 2007/08/28 22:31:26 peterbrant
* Implement widows and orphans properties
*
* Revision 1.66 2007/08/19 22:22:49 peterbrant
* Merge R8pbrant changes to HEAD
*
* Revision 1.65.2.6 2007/08/16 22:38:47 peterbrant
* Further progress on table pagination
*
* Revision 1.65.2.5 2007/08/15 21:29:30 peterbrant
* Initial draft of support for running headers and footers on tables
*
* Revision 1.65.2.4 2007/08/14 16:10:30 peterbrant
* Remove obsolete code
*
* Revision 1.65.2.3 2007/08/13 22:41:13 peterbrant
* First pass at exporting the render tree as text
*
* Revision 1.65.2.2 2007/08/07 17:06:32 peterbrant
* Implement named pages / Implement page-break-before/after: left/right / Experiment with efficient selection
*
* Revision 1.65.2.1 2007/07/30 00:43:15 peterbrant
* Start implementing text selection and copying
*
* Revision 1.65 2007/05/16 15:44:37 peterbrant
* inline-block/inline-table elements that take up no space should not be considered visible content
*
* Revision 1.64 2007/05/10 00:43:55 peterbrant
* Empty inline elements should generate boxes and participate in line height calculations
*
* Revision 1.63 2007/03/12 21:11:20 peterbrant
* Documentation update
*
* Revision 1.62 2007/03/07 17:15:16 peterbrant
* Minor fixes to dump() method
*
* Revision 1.61 2007/02/28 18:16:29 peterbrant
* Support multiple values for text-decoration (per spec)
*
* Revision 1.60 2007/02/22 15:52:46 peterbrant
* Restyle generated content correctly (although the CSS matcher needs more
* work before restyle with generated content and dynamic pseudo classes will work)
*
* Revision 1.59 2007/02/21 23:11:02 peterbrant
* Correct margin edge calculation (as it turns out the straightforward approach is also the correct one)
*
* Revision 1.58 2007/02/19 14:53:36 peterbrant
* Integrate new CSS parser
*
* Revision 1.57 2007/02/07 16:33:22 peterbrant
* Initial commit of rewritten table support and associated refactorings
*
* Revision 1.56 2006/08/29 17:29:12 peterbrant
* Make Style object a thing of the past
*
* Revision 1.55 2006/08/27 00:36:36 peterbrant
* Initial commit of (initial) R7 work
*
* Revision 1.54 2006/04/02 22:22:34 peterbrant
* Add function interface for generated content / Implement page counters in terms of this, removing previous hack / Add custom page numbering functions
*
* Revision 1.53 2006/03/01 00:45:02 peterbrant
* Provide LayoutContext when calling detach() and friends
*
* Revision 1.52 2006/02/22 02:20:19 peterbrant
* Links and hover work again
*
* Revision 1.51 2006/02/05 01:57:23 peterbrant
* Fix bug where final space on the final line of a block was not being collapsed away
*
* Revision 1.50 2006/02/03 23:57:53 peterbrant
* Implement counter(page) and counter(pages) / Bug fixes to alignment calculation
*
* Revision 1.49 2006/01/27 01:15:33 peterbrant
* Start on better support for different output devices
*
* Revision 1.48 2006/01/11 22:16:05 peterbrant
* Fix NPE when clip region is null
*
* Revision 1.47 2006/01/03 17:04:50 peterbrant
* Many pagination bug fixes / Add ability to position absolute boxes in margin area
*
* Revision 1.46 2006/01/01 03:14:24 peterbrant
* Implement page-break-inside: avoid
*
* Revision 1.45 2006/01/01 02:38:18 peterbrant
* Merge more pagination work / Various minor cleanups
*
* Revision 1.44 2005/12/21 02:36:28 peterbrant
* - Calculate absolute positions incrementally (prep work for pagination)
* - Light cleanup
* - Fix bug where floats nested in floats could cause the outer float to be positioned in the wrong place
*
* Revision 1.43 2005/12/15 20:04:47 peterbrant
* Implement visibility: hidden
*
* Revision 1.42 2005/12/14 15:03:12 peterbrant
* Revert ill-advised text-decoration change
*
* Revision 1.41 2005/12/13 20:46:04 peterbrant
* Improve list support (implement list-style-position: inside, marker "sticks" to first line box even if there are other block boxes in between, plus other minor fixes) / Experimental support for optionally extending text decorations to box edge vs line edge
*
* Revision 1.40 2005/12/13 02:41:32 peterbrant
* Initial implementation of vertical-align: top/bottom (not done yet) / Minor cleanup and optimization
*
* Revision 1.39 2005/12/09 21:41:18 peterbrant
* Finish support for relative inline layers
*
* Revision 1.38 2005/12/09 01:24:55 peterbrant
* Initial commit of relative inline layers
*
* Revision 1.37 2005/12/07 20:34:45 peterbrant
* Remove unused fields/methods from RenderingContext / Paint line content using absolute coords (preparation for relative inline layers)
*
* Revision 1.36 2005/11/29 16:39:04 peterbrant
* Complete line box clip region checking
*
* Revision 1.35 2005/11/29 15:26:16 peterbrant
* Implement text-decoration
*
* Revision 1.34 2005/11/29 03:12:25 peterbrant
* Fix clip region checking when a line contains an inline-block
*
* Revision 1.33 2005/11/29 02:37:23 peterbrant
* Make clear work again / Rip out old pagination code
*
* Revision 1.32 2005/11/25 22:42:05 peterbrant
* Wait until table has completed layout before doing line alignment
*
* Revision 1.31 2005/11/25 16:57:17 peterbrant
* Initial commit of inline content refactoring
*
* Revision 1.30 2005/11/12 21:55:27 tobega
* Inline enhancements: block box text decorations, correct line-height when it is a number, better first-letter handling
*
* Revision 1.29 2005/11/11 16:45:29 tobega
* Fixed vertical align calculations to use line-height properly
*
* Revision 1.28 2005/11/09 22:33:18 tobega
* fixed handling of first-line-style
*
* Revision 1.27 2005/11/08 20:03:56 peterbrant
* Further progress on painting order / improved positioning implementation
*
* Revision 1.26 2005/11/07 00:07:35 tobega
* Got text-decoration and relative inlines kind-of working
*
* Revision 1.25 2005/11/04 02:43:11 tobega
* Inline borders and backgrounds are back!
*
* Revision 1.24 2005/11/03 17:58:40 peterbrant
* Float rewrite (still stomping bugs, but demos work)
*
* Revision 1.23 2005/10/29 22:31:02 tobega
* House-cleaning
*
* Revision 1.22 2005/10/27 00:09:04 tobega
* Sorted out Context into RenderingContext and LayoutContext
*
* Revision 1.21 2005/10/16 23:57:17 tobega
* Starting experiment with flat representation of render tree
*
* Revision 1.20 2005/10/12 21:17:14 tobega
* patch from Peter Brant
*
* Revision 1.19 2005/10/08 17:40:21 tobega
* Patch from Peter Brant
*
* Revision 1.18 2005/10/06 03:20:23 tobega
* Prettier incremental rendering. Ran into more trouble than expected and some creepy crawlies and a few pages don't look right (forms.xhtml, splash.xhtml)
*
* Revision 1.17 2005/08/06 22:12:24 tobega
* Fixed issue 110
*
* Revision 1.16 2005/07/14 22:25:17 joshy
* major updates to float code. should fix *most* issues.
* Issue number:
* Obtained from:
* Submitted by:
* Reviewed by:
*
* Revision 1.15 2005/05/09 23:47:15 tobega
* Cleaned up some getting of LineMetrics and optimized InlineRendering
*
* Revision 1.14 2005/05/08 13:02:41 tobega
* Fixed a bug whereby styles could get lost for inline elements, notably if root element was inline. Did a few other things which probably has no importance at this moment, e.g. refactored out some unused stuff.
*
* Revision 1.13 2005/01/29 20:21:04 pdoubleya
* Clean/reformat code. Removed commented blocks, checked copyright.
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* Revision 1.12 2005/01/24 22:46:42 pdoubleya
* Added support for ident-checks using IdentValue instead of string comparisons.
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* Revision 1.11 2005/01/10 01:58:37 tobega
* Simplified (and hopefully improved) handling of vertical-align. Added support for line-height. As always, provoked a few bugs in the process.
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* Revision 1.10 2005/01/09 13:32:35 tobega
* Caching image components. Also fixed two bugs that were introduced fixing the last one. Code still too brittle...
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* Revision 1.9 2005/01/09 00:29:28 tobega
* Removed XPath usages from core classes. Also happened to find and fix a layout-bug that I introduced a while ago.
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* Revision 1.8 2005/01/06 09:49:38 tobega
* More cleanup, aiming to remove Content reference in box
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* Revision 1.7 2005/01/05 01:10:16 tobega
* Went wild with code analysis tool. removed unused stuff. Lucky we have CVS...
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* Revision 1.6 2004/12/29 10:39:35 tobega
* Separated current state Context into LayoutContext and the rest into SharedContext.
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* Revision 1.5 2004/12/15 00:53:40 tobega
* Started playing a bit with inline box, provoked a few nasties, probably created some, seems to work now
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* Revision 1.4 2004/12/12 03:33:01 tobega
* Renamed x and u to avoid confusing IDE. But that got cvs in a twist. See if this does it
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* Revision 1.3 2004/12/10 06:51:05 tobega
* Shamefully, I must now check in painfully broken code. Good news is that Layout is much nicer, and we also handle :before and :after, and do :first-line better than before. Table stuff must be brought into line, but most needed is to fix Render. IMO Render should work with Boxes and Content. If Render goes for a node, that is wrong.
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* Revision 1.2 2004/10/23 13:50:27 pdoubleya
* Re-formatted using JavaStyle tool.
* Cleaned imports to resolve wildcards except for common packages (java.io, java.util, etc).
* Added CVS log comments at bottom.
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