protected boolean startRowLevelBox(final RenderBox box) {
if (lineBreakState.isInsideParagraph()) {
// The break-state exists only while we are inside of an paragraph
// and suspend can only happen on inline elements.
// A block-element inside a paragraph cannot be (and if it does, it is
// a bug)
throw new IllegalStateException("This cannot be.");
}
nodeContext = nodeContextPool.createContext(box, nodeContext, false);
if (checkCacheValid(box)) {
return false;
}
startTableContext(box);
final long x = computeRowPosition(box);
final long left = box.getInsetsLeft();
final long right = box.getInsetsRight();
final long width = MinorAxisLayoutStepUtil.resolveNodeWidthOnStart(box, nodeContext, x);
assert width >= 0;
nodeContext.setArea(x, left, right, width);
if (startParagraphBox(box) == false) {
return false;
}
return true;
}
protected boolean startTableRowLevelBox(final RenderBox box) {
if (lineBreakState.isInsideParagraph()) {
// The break-state exists only while we are inside of an paragraph
// and suspend can only happen on inline elements.
// A block-element inside a paragraph cannot be (and if it does, it is
// a bug)
throw new IllegalStateException("This cannot be.");
}
nodeContext = nodeContextPool.createContext(box, nodeContext, false);
if (box.getNodeType() != LayoutNodeTypes.TYPE_BOX_TABLE_CELL) {
startTableSectionOrRow(box);
return true;
}
final MinorAxisTableContext tableContext = getTableContext();
final TableCellRenderBox tableCellRenderBox = (TableCellRenderBox) box;
// This is slightly different for table cells ...
final int columnIndex = tableCellRenderBox.getColumnIndex();
final TableColumnModel columnModel = tableContext.getColumnModel();
// cell-size does not include border spacing
final long startOfRowX = nodeContext.getParentX1();
final long x = startOfRowX + columnModel.getCellPosition(columnIndex);
final long insetsLeft = Math.max(box.getInsetsLeft(), columnModel.getBorderSpacing() / 2);
final long insetsRight = Math.max(box.getInsetsRight(), columnModel.getBorderSpacing() / 2);
final long width = computeCellWidth(tableCellRenderBox);
nodeContext.setArea(x, insetsLeft, insetsRight, width);
return true;
}
protected void processInlineLevelNode(final RenderNode node) {
if (lineBreakState.isInsideParagraph() == false) {
throw new InvalidReportStateException(
"A inline-level box outside of a paragraph box is not allowed.");
}
final int nodeType = node.getNodeType();
if (nodeType == LayoutNodeTypes.TYPE_NODE_FINISHEDNODE) {
final FinishedRenderNode finNode = (FinishedRenderNode) node;
node.setCachedWidth(finNode.getLayoutedWidth());
return;
}
if (nodeType == LayoutNodeTypes.TYPE_NODE_TEXT) {
lineBreakState.add(TextSequenceElement.INSTANCE, node);
} else if (nodeType == LayoutNodeTypes.TYPE_NODE_SPACER) {
final StyleSheet styleSheet = node.getStyleSheet();
if (WhitespaceCollapse.PRESERVE.equals(
styleSheet.getStyleProperty(TextStyleKeys.WHITE_SPACE_COLLAPSE))
&& styleSheet.getBooleanStyleProperty(TextStyleKeys.TRIM_TEXT_CONTENT) == false) {
// bug-alert: This condition could indicate a workaround for a logic-flaw in the
// text-processor
lineBreakState.add(SpacerSequenceElement.INSTANCE, node);
} else if (lineBreakState.isContainsContent()) {
lineBreakState.add(SpacerSequenceElement.INSTANCE, node);
}
} else {
lineBreakState.add(InlineNodeSequenceElement.INSTANCE, node);
}
}
protected boolean startBlockLevelBox(final RenderBox box) {
if (lineBreakState.isInsideParagraph()) {
throw new InvalidReportStateException(
"A block-level element inside a paragraph is not allowed.");
}
nodeContext = nodeContextPool.createContext(box, nodeContext, true);
if (checkCacheValid(box)) {
return false;
}
startTableContext(box);
final long x = nodeContext.getParentX1();
final long left = box.getInsetsLeft();
final long right = box.getInsetsRight();
final long width = MinorAxisLayoutStepUtil.resolveNodeWidthOnStart(box, nodeContext, x);
assert width >= 0;
nodeContext.setArea(x, left, right, width);
if (startParagraphBox(box) == false) {
return false;
}
return true;
}
protected void finishParagraphBox(final RenderBox box) {
final MinorAxisParagraphBreakState lineBreakState = getLineBreakState();
if (lineBreakState.isInsideParagraph()) {
if (box.getNodeType() == LayoutNodeTypes.TYPE_BOX_PARAGRAPH) {
final ParagraphRenderBox paragraph = (ParagraphRenderBox) box;
paragraph.updateMinorLayoutAge();
paragraph.setCachedMaxChildX2(nodeContext.getMaxChildX2());
lineBreakState.deinit();
}
}
}
protected void finishInlineLevelBox(final RenderBox box) {
if (lineBreakState.isInsideParagraph() == false) {
throw new InvalidReportStateException(
"A inline-level box outside of a paragraph box is not allowed.");
}
final int nodeType = box.getLayoutNodeType();
if (nodeType == LayoutNodeTypes.TYPE_BOX_CONTENT) {
return;
}
lineBreakState.add(EndSequenceElement.INSTANCE, box);
}
protected boolean startTableSectionLevelBox(final RenderBox box) {
if (lineBreakState.isInsideParagraph()) {
// The break-state exists only while we are inside of an paragraph
// and suspend can only happen on inline elements.
// A block-element inside a paragraph cannot be (and if it does, it is
// a bug)
throw new IllegalStateException("This cannot be.");
}
nodeContext = nodeContextPool.createContext(box, nodeContext, true);
startTableSectionOrRow(box);
return true;
}
private boolean startLine(final RenderBox inlineRenderBox) {
final MinorAxisParagraphBreakState breakState = getLineBreakState();
if (breakState.isInsideParagraph() == false) {
return false;
}
if (breakState.isSuspended()) {
return false;
}
breakState.clear();
breakState.add(StartSequenceElement.INSTANCE, inlineRenderBox);
return true;
}
protected boolean startInlineLevelBox(final RenderBox box) {
if (lineBreakState.isInsideParagraph() == false) {
throw new InvalidReportStateException(
"A inline-level box outside of a paragraph box is not allowed.");
}
final int nodeType = box.getLayoutNodeType();
if (nodeType == LayoutNodeTypes.TYPE_BOX_CONTENT) {
lineBreakState.add(ReplacedContentSequenceElement.INSTANCE, box);
return false;
}
lineBreakState.add(StartSequenceElement.INSTANCE, box);
return true;
}
// Table-sections or auto-boxes masking as tables (treated as table-sections nonetheless).
protected boolean startTableLevelBox(final RenderBox box) {
if (lineBreakState.isInsideParagraph()) {
// The break-state exists only while we are inside of an paragraph
// and suspend can only happen on inline elements.
// A block-element inside a paragraph cannot be (and if it does, it is
// a bug)
throw new IllegalStateException("This cannot be.");
}
nodeContext = nodeContextPool.createContext(box, nodeContext, true);
if (checkCacheValid(box)) {
return false;
}
if (box.getNodeType() == LayoutNodeTypes.TYPE_BOX_TABLE_COL_GROUP) {
startTableColGroup((TableColumnGroupNode) box);
} else if (box.getNodeType() == LayoutNodeTypes.TYPE_BOX_TABLE_COL) {
startTableCol((TableColumnNode) box);
} else {
startTableSectionOrRow(box);
}
return true;
}
private void finishLine(
final RenderBox inlineRenderBox,
final MinorAxisNodeContext nodeContext,
final MinorAxisParagraphBreakState breakState) {
if (breakState.isInsideParagraph() == false || breakState.isSuspended()) {
throw new IllegalStateException("No active breakstate, finish-line cannot continue.");
}
final PageGrid pageGrid = getPageGrid();
final OutputProcessorMetaData metaData = getMetaData();
breakState.add(EndSequenceElement.INSTANCE, inlineRenderBox);
final ParagraphRenderBox paragraph = breakState.getParagraph();
final ElementAlignment textAlignment = paragraph.getTextAlignment();
final long textIndent = paragraph.getTextIndent();
final long firstLineIndent = paragraph.getFirstLineIndent();
// This aligns all direct childs. Once that is finished, we have to
// check, whether possibly existing inner-paragraphs are still valid
// or whether moving them violated any of the inner-pagebreak constraints.
final TextAlignmentProcessor processor = create(textAlignment);
final SequenceList sequence = breakState.getSequence();
final long lineEnd;
final boolean overflowX = paragraph.getStaticBoxLayoutProperties().isOverflowX();
if (overflowX) {
lineEnd = nodeContext.getX1() + OVERFLOW_DUMMY_WIDTH;
} else {
lineEnd = nodeContext.getX2();
}
long lineStart = Math.min(lineEnd, nodeContext.getX1() + firstLineIndent);
if (lineEnd - lineStart <= 0) {
final long minimumChunkWidth = paragraph.getPool().getMinimumChunkWidth();
processor.initialize(
metaData, sequence, lineStart, lineStart + minimumChunkWidth, pageGrid, overflowX);
nodeContext.updateX2(lineStart + minimumChunkWidth);
logger.warn("Auto-Corrected zero-width first-line on paragraph - " + paragraph.getName());
} else {
processor.initialize(metaData, sequence, lineStart, lineEnd, pageGrid, overflowX);
if (overflowX == false) {
nodeContext.updateX2(lineEnd);
}
}
while (processor.hasNext()) {
final RenderNode linebox = processor.next();
if (linebox.getLayoutNodeType() != LayoutNodeTypes.TYPE_BOX_LINEBOX) {
throw new IllegalStateException("Line must not be null");
}
paragraph.addGeneratedChild(linebox);
if (processor.hasNext()) {
lineStart = Math.min(lineEnd, nodeContext.getX1() + textIndent);
if (lineEnd - lineStart <= 0) {
final long minimumChunkWidth = paragraph.getPool().getMinimumChunkWidth();
processor.updateLineSize(lineStart, lineStart + minimumChunkWidth);
nodeContext.updateX2(lineStart + minimumChunkWidth);
logger.warn(
"Auto-Corrected zero-width text-line on paragraph continuation - "
+ paragraph.getName());
} else {
processor.updateLineSize(lineStart, lineEnd);
if (overflowX == false) {
nodeContext.updateX2(lineEnd);
}
}
}
}
processor.deinitialize();
}