private static void appendSimpleName(StringBuilder sb, CharSequence fullName) {
int dotIndex = TextUtils.lastIndexOf(fullName, '.');
if (dotIndex < 0) {
dotIndex = 0;
}
sb.append(fullName, dotIndex, fullName.length());
}
private void reflow(CharSequence s, int where, int before, int after) {
if (s != mBase) return;
CharSequence text = mDisplay;
int len = text.length();
// seek back to the start of the paragraph
int find = TextUtils.lastIndexOf(text, '\n', where - 1);
if (find < 0) find = 0;
else find = find + 1;
{
int diff = where - find;
before += diff;
after += diff;
where -= diff;
}
// seek forward to the end of the paragraph
int look = TextUtils.indexOf(text, '\n', where + after);
if (look < 0) look = len;
else look++; // we want the index after the \n
int change = look - (where + after);
before += change;
after += change;
// seek further out to cover anything that is forced to wrap together
if (text instanceof Spanned) {
Spanned sp = (Spanned) text;
boolean again;
do {
again = false;
Object[] force = sp.getSpans(where, where + after, WrapTogetherSpan.class);
for (int i = 0; i < force.length; i++) {
int st = sp.getSpanStart(force[i]);
int en = sp.getSpanEnd(force[i]);
if (st < where) {
again = true;
int diff = where - st;
before += diff;
after += diff;
where -= diff;
}
if (en > where + after) {
again = true;
int diff = en - (where + after);
before += diff;
after += diff;
}
}
} while (again);
}
// find affected region of old layout
int startline = getLineForOffset(where);
int startv = getLineTop(startline);
int endline = getLineForOffset(where + before);
if (where + after == len) endline = getLineCount();
int endv = getLineTop(endline);
boolean islast = (endline == getLineCount());
// generate new layout for affected text
StaticLayout reflowed;
synchronized (sLock) {
reflowed = sStaticLayout;
sStaticLayout = null;
}
if (reflowed == null) {
reflowed = new StaticLayout(null);
} else {
reflowed.prepare();
}
reflowed.generate(
text,
where,
where + after,
getPaint(),
getWidth(),
getTextDirectionHeuristic(),
getSpacingMultiplier(),
getSpacingAdd(),
false,
true,
mEllipsizedWidth,
mEllipsizeAt);
int n = reflowed.getLineCount();
// If the new layout has a blank line at the end, but it is not
// the very end of the buffer, then we already have a line that
// starts there, so disregard the blank line.
if (where + after != len && reflowed.getLineStart(n - 1) == where + after) n--;
// remove affected lines from old layout
mInts.deleteAt(startline, endline - startline);
mObjects.deleteAt(startline, endline - startline);
// adjust offsets in layout for new height and offsets
int ht = reflowed.getLineTop(n);
int toppad = 0, botpad = 0;
if (mIncludePad && startline == 0) {
toppad = reflowed.getTopPadding();
mTopPadding = toppad;
ht -= toppad;
}
if (mIncludePad && islast) {
botpad = reflowed.getBottomPadding();
mBottomPadding = botpad;
ht += botpad;
}
mInts.adjustValuesBelow(startline, START, after - before);
mInts.adjustValuesBelow(startline, TOP, startv - endv + ht);
// insert new layout
int[] ints;
if (mEllipsize) {
ints = new int[COLUMNS_ELLIPSIZE];
ints[ELLIPSIS_START] = ELLIPSIS_UNDEFINED;
} else {
ints = new int[COLUMNS_NORMAL];
}
Directions[] objects = new Directions[1];
for (int i = 0; i < n; i++) {
ints[START] =
reflowed.getLineStart(i)
| (reflowed.getParagraphDirection(i) << DIR_SHIFT)
| (reflowed.getLineContainsTab(i) ? TAB_MASK : 0);
int top = reflowed.getLineTop(i) + startv;
if (i > 0) top -= toppad;
ints[TOP] = top;
int desc = reflowed.getLineDescent(i);
if (i == n - 1) desc += botpad;
ints[DESCENT] = desc;
objects[0] = reflowed.getLineDirections(i);
if (mEllipsize) {
ints[ELLIPSIS_START] = reflowed.getEllipsisStart(i);
ints[ELLIPSIS_COUNT] = reflowed.getEllipsisCount(i);
}
mInts.insertAt(startline + i, ints);
mObjects.insertAt(startline + i, objects);
}
synchronized (sLock) {
sStaticLayout = reflowed;
reflowed.finish();
}
}