private CharSequence applySpans(CharSequence text, int offset) {
List<HighLight> highLights = highlightManager.getHighLights(bookView.getFileName());
int end = offset + text.length() - 1;
for (final HighLight highLight : highLights) {
if (highLight.getIndex() == bookView.getIndex()
&& highLight.getStart() >= offset
&& highLight.getStart() < end) {
LOG.debug(
"Got highlight from "
+ highLight.getStart()
+ " to "
+ highLight.getEnd()
+ " with offset "
+ offset);
int highLightEnd = Math.min(end, highLight.getEnd());
((Spannable) text)
.setSpan(
new HighlightSpan(highLight),
highLight.getStart() - offset,
highLightEnd - offset,
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
}
}
return text;
}
@Override
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
if (textSetup) return source;
if (!(source instanceof SpannableStringBuilder)) {
StringBuilder filteredStringBuilder = new StringBuilder();
final boolean charAllowed = isCharAllowed(dstart);
for (int i = start; i < end; i++) {
char currentChar = source.charAt(i);
if (charAllowed) {
isUserInput = false;
MaskedEditText.this.getText().replace(dstart, dstart + 1, "");
isUserInput = true;
filteredStringBuilder.append(currentChar);
int index;
if (!isCharAllowed(dstart + 1)) index = dstart + 1;
else index = dstart;
skipSymbol(index);
} else {
if (dstart != mask.length()) skipSymbol(dstart);
}
}
if (isUserInput && TextUtils.isEmpty(source)) { // deletion detection
if (dend != 0) {
if (charAllowed) {
filteredStringBuilder.append(deleteChar);
skipSymbolAfterDeletion(dstart);
} else {
filteredStringBuilder.append(mask.charAt(dstart));
skipSymbolAfterDeletion(dstart);
}
}
}
return filteredStringBuilder.toString();
}
return source;
}
@Override
public CharSequence filter(
CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
if ((end == 1)
&& (dstart != 0)
&& (dend != dest.length())
&& (source.charAt(start) == '\n')) {
StringBuilder ident = new StringBuilder();
// find the last line
int n = 1;
while (dest.charAt(dstart - n) != '\n') ++n;
// copy previous ident and autoexpand comments
int s = 1;
char c = dest.charAt(dstart - n + s++);
while (c != '\n' && (c == ' ' || c == '/')) {
ident.append(c);
c = dest.charAt(dstart - n + s++);
}
// extra ident after these chars
if ("{(*+/-=%".contains(String.valueOf(dest.charAt(dstart - 1)))) ident.append(" ");
return source + ident.toString();
}
return source;
}
public List<Integer> getPageOffsets(CharSequence text, boolean includePageNumbers) {
if (text == null) {
return new ArrayList<Integer>();
}
List<Integer> pageOffsets = new ArrayList<Integer>();
TextPaint textPaint = bookView.getInnerView().getPaint();
int boundedWidth = bookView.getInnerView().getWidth();
LOG.debug("Page width: " + boundedWidth);
StaticLayout layout =
layoutFactory.create(text, textPaint, boundedWidth, bookView.getLineSpacing());
LOG.debug("Layout height: " + layout.getHeight());
layout.draw(new Canvas());
// Subtract the height of the top margin
int pageHeight = bookView.getHeight() - bookView.getVerticalMargin();
if (includePageNumbers) {
String bottomSpace = "0\n";
StaticLayout numLayout =
layoutFactory.create(bottomSpace, textPaint, boundedWidth, bookView.getLineSpacing());
numLayout.draw(new Canvas());
// Subtract the height needed to show page numbers, or the
// height of the margin, whichever is more
pageHeight = pageHeight - Math.max(numLayout.getHeight(), bookView.getVerticalMargin());
} else {
// Just subtract the bottom margin
pageHeight = pageHeight - bookView.getVerticalMargin();
}
LOG.debug("Got pageHeight " + pageHeight);
int totalLines = layout.getLineCount();
int topLineNextPage = -1;
int pageStartOffset = 0;
while (topLineNextPage < totalLines - 1) {
LOG.debug("Processing line " + topLineNextPage + " / " + totalLines);
int topLine = layout.getLineForOffset(pageStartOffset);
topLineNextPage = layout.getLineForVertical(layout.getLineTop(topLine) + pageHeight);
LOG.debug("topLine " + topLine + " / " + topLineNextPage);
if (topLineNextPage == topLine) { // If lines are bigger than can fit on a page
topLineNextPage = topLine + 1;
}
int pageEnd = layout.getLineEnd(topLineNextPage - 1);
LOG.debug("pageStartOffset=" + pageStartOffset + ", pageEnd=" + pageEnd);
if (pageEnd > pageStartOffset) {
if (text.subSequence(pageStartOffset, pageEnd).toString().trim().length() > 0) {
pageOffsets.add(pageStartOffset);
}
pageStartOffset = layout.getLineStart(topLineNextPage);
}
}
return pageOffsets;
}