/**
* Sets the text of the TextFlow to the given value.
*
* @param newText the new text value.
*/
public void setText(String newText) {
if (newText == null) {
newText = ""; // $NON-NLS-1$
}
label.setText(newText);
}
private int calcMaxSegment() {
String text = label.getText();
char[] chars = text.toCharArray();
int position = 0;
int maxWidth = 0;
for (int i = 0; i < chars.length; i++) {
if (canBreakAfter(chars[i])) {
int tempMaxWidth;
String st = text.substring(position, i + 1);
tempMaxWidth = FigureUtilities.getStringExtents(st, getFont()).width;
if (tempMaxWidth > maxWidth) {
maxWidth = tempMaxWidth;
}
position = i;
}
}
String st = text.substring(position, chars.length);
int tempMaxWidth = FigureUtilities.getStringExtents(st, getFont()).width;
if (tempMaxWidth > maxWidth) {
maxWidth = tempMaxWidth;
}
return maxWidth + getInsets().getWidth();
}
public int getWidth() {
if (width == null) {
width = new int[1];
int startingIndex = seg + 1;
TextFlow textFlow = (TextFlow) getFlowFigure();
if (startingIndex == segs.length) {
width[0] += trailingBorderSize;
getContext().getWidthLookahead(textFlow, width);
} else {
String rest = segs[startingIndex];
for (int k = startingIndex + 1; k < segs.length; k++) rest += segs[k];
if (!textFlow.addLeadingWordWidth(rest, width)) {
width[0] += trailingBorderSize;
getContext().getWidthLookahead(textFlow, width);
}
}
}
return width[0];
}
/** @see org.eclipse.draw2d.text.FlowFigureLayout#layout() */
protected void layout() {
TextFlow textFlow = (TextFlow) getFlowFigure();
String text = textFlow.getText();
List fragments = textFlow.getFragments();
Font font = textFlow.getFont();
TextFragmentBox fragment;
int i = 0;
int offset = 0;
FlowUtilities flowUtilities = textFlow.getFlowUtilities();
do {
nextLineBreak(text, offset);
fragment = getFragment(i++, fragments);
fragment.length = result - offset;
fragment.offset = offset;
fragment.setWidth(-1);
flowUtilities.setupFragment(fragment, font, text.substring(offset, result));
getContext().addToCurrentLine(fragment);
getContext().endLine();
offset = result + delimeterLength;
} while (offset < text.length());
// Remove the remaining unused fragments.
while (i < fragments.size()) fragments.remove(i++);
}
/** @see org.eclipse.draw2d.text.FlowFigureLayout#layout() */
protected void layout() {
TextFlow textFlow = (TextFlow) getFlowFigure();
int offset = 0;
FlowContext context = getContext();
List fragments = textFlow.getFragments();
Font font = textFlow.getFont();
int fragIndex = 0;
int advance = 0;
TextFragmentBox fragment;
int levelInfo[] =
(textFlow.getBidiInfo() == null) ? new int[] {-1} : textFlow.getBidiInfo().levelInfo;
String segment, segments[] = getSegments(textFlow.getText(), levelInfo);
FlowBorder border = null;
if (textFlow.getBorder() instanceof FlowBorder) border = (FlowBorder) textFlow.getBorder();
SegmentLookahead lookahead =
new SegmentLookahead(segments, border == null ? 0 : border.getRightMargin());
int seg;
if (border != null) {
fragment = getFragment(fragIndex++, fragments);
fragment.setBidiLevel(levelInfo[0]);
fragment.setTruncated(false);
fragment.offset = fragment.length = -1;
fragment.setWidth(border.getLeftMargin() + border.getInsets(textFlow).left);
if (context.getRemainingLineWidth() < fragment.getWidth() + lookahead.getWidth())
context.endLine();
context.addToCurrentLine(fragment);
}
FlowUtilities flowUtilities = textFlow.getFlowUtilities();
for (seg = 0; seg < segments.length; seg++) {
segment = segments[seg];
lookahead.setIndex(seg);
do {
fragment = getFragment(fragIndex++, fragments);
fragment.offset = offset;
fragment.setBidiLevel(levelInfo[seg * 2]);
advance =
flowUtilities.wrapFragmentInContext(
fragment, segment, context, lookahead, font, wrappingStyle);
segment = segment.substring(advance);
offset += advance;
if ((segment.length() > 0 || fragment.length < advance) || fragment.isTruncated())
context.endLine();
} while (segment.length() > 0 || (!fragment.isTruncated() && fragment.length < advance));
}
if (border != null) {
fragment = getFragment(fragIndex++, fragments);
fragment.setBidiLevel(levelInfo[0]);
fragment.setTruncated(false);
fragment.offset = fragment.length = -1;
fragment.setWidth(border.getRightMargin() + border.getInsets(textFlow).right);
context.addToCurrentLine(fragment);
}
// Remove the remaining unused fragments.
while (fragIndex < fragments.size()) fragments.remove(fragments.size() - 1);
}
/**
* Creates a new LabelFigure with a MarginBorder that is the given size and a FlowPage containing
* a TextFlow with the style WORD_WRAP_HARD.
*
* @param borderSize the size of the MarginBorder
*/
public LabelFigure(int borderSize) {
setBorder(new MarginBorder(borderSize));
label =
new TextFlow() {
public void postValidate() {
if (DesignChoiceConstants.DISPLAY_BLOCK.equals(display)
|| DesignChoiceConstants.DISPLAY_INLINE.equals(display)) {
List list = getFragments();
FlowBox box;
int left = Integer.MAX_VALUE, top = left;
int bottom = Integer.MIN_VALUE;
for (int i = 0; i < list.size(); i++) {
box = (FlowBox) list.get(i);
left = Math.min(left, box.getX());
top = Math.min(top, box.getBaseline() - box.getAscent());
bottom = Math.max(bottom, box.getBaseline() + box.getDescent());
}
int width = LabelFigure.this.getClientArea().width;
if (isFixLayout) {
int maxWidth = calcMaxSegment() - getInsets().getWidth();
width = Math.max(width, maxWidth);
}
setBounds(
new Rectangle(
left,
top,
width,
Math.max(LabelFigure.this.getClientArea().height, bottom - top)));
if (isFixLayout()) {
Figure child = (Figure) getParent();
Rectangle rect = child.getBounds();
child.setBounds(new Rectangle(rect.x, rect.y, width, rect.height));
}
list = getChildren();
for (int i = 0; i < list.size(); i++) {
((FlowFigure) list.get(i)).postValidate();
}
} else {
super.postValidate();
}
}
};
label.setLayoutManager(new ParagraphTextLayout(label, ParagraphTextLayout.WORD_WRAP_SOFT));
flowPage = new FlowPage();
flowPage.add(label);
setLayoutManager(new StackLayout());
add(flowPage);
}
/**
* Sets the direction property of the Label.
*
* @param direction the direction property. this should be one of the following:
* DesignChoiceConstants.BIDI_DIRECTION_LTR | DesignChoiceConstants.BIDI_DIRECTION_RTL
* @author bidi_hcg
*/
public void setDirection(String direction) {
label.setDirection(direction);
}
/**
* Gets the direction property of the Label.
*
* @return the Label direction.
* @author bidi_hcg
*/
public String getDirection() {
return label.getDirection();
}
/** @param specialPREFIX */
public void setSpecialPREFIX(String specialPREFIX) {
label.setSpecialPREFIX(specialPREFIX);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.draw2d.Figure#setFont(org.eclipse.swt.graphics.Font)
*/
public void setFont(Font f) {
super.setFont(f);
label.setFont(f);
}
/**
* Sets the vertical text alignment style.
*
* @param verticalAlign The verticalAlign to set.
*/
public void setVerticalAlign(String verticalAlign) {
label.setVerticalAlign(verticalAlign);
}
/**
* Gets the horizontal text alignment style.
*
* @return The textAlign.
*/
public String getTextAlign() {
return label.getTextAlign();
}
/**
* Sets the horizontal text alignment style.
*
* @param textAlign The textAlign to set.
*/
public void setTextAlign(String textAlign) {
label.setTextAlign(textAlign);
}
/**
* Sets the underline style of the text.
*
* @param textUnderline The textUnderline to set.
*/
public void setTextUnderline(String textUnderline) {
label.setTextUnderline(textUnderline);
}
/**
* Sets the line-through style of the text.
*
* @param textLineThrough The textLineThrough to set.
*/
public void setTextLineThrough(String textLineThrough) {
label.setTextLineThrough(textLineThrough);
}
/**
* Returns the text inside the TextFlow.
*
* @return the text flow inside the text.
*/
public String getText() {
return label.getText();
}