void OcrGocrDialog::slotWriteConfig( void )
{
kDebug();
OcrBaseDialog::slotWriteConfig();
KConfigGroup grp1 = KGlobal::config()->group(CFG_GROUP_OCR_DIA);
grp1.writePathEntry(CFG_GOCR_BINARY, getOCRCmd());
KConfigGroup grp2 = KGlobal::config()->group(CFG_GROUP_GOCR);
grp2.writeEntry(CFG_GOCR_GRAYLEVEL, getGraylevel());
grp2.writeEntry(CFG_GOCR_DUSTSIZE, getDustsize());
grp2.writeEntry(CFG_GOCR_SPACEWIDTH, getSpaceWidth());
}
void LineBreaker::computeBreaksOptimal(bool isRectangle) {
size_t active = 0;
size_t nCand = mCandidates.size();
float width = mLineWidths.getLineWidth(0);
float shortLineFactor = mJustified ? 0.75f : 0.5f;
float maxShrink = mJustified ? SHRINKABILITY * getSpaceWidth() : 0.0f;
// "i" iterates through candidates for the end of the line.
for (size_t i = 1; i < nCand; i++) {
bool atEnd = i == nCand - 1;
float best = SCORE_INFTY;
size_t bestPrev = 0;
size_t lineNumberLast = 0;
if (!isRectangle) {
size_t lineNumberLast = mCandidates[active].lineNumber;
width = mLineWidths.getLineWidth(lineNumberLast);
}
ParaWidth leftEdge = mCandidates[i].postBreak - width;
float bestHope = 0;
// "j" iterates through candidates for the beginning of the line.
for (size_t j = active; j < i; j++) {
if (!isRectangle) {
size_t lineNumber = mCandidates[j].lineNumber;
if (lineNumber != lineNumberLast) {
float widthNew = mLineWidths.getLineWidth(lineNumber);
if (widthNew != width) {
leftEdge = mCandidates[i].postBreak - width;
bestHope = 0;
width = widthNew;
}
lineNumberLast = lineNumber;
}
}
float jScore = mCandidates[j].score;
if (jScore + bestHope >= best)
continue;
float delta = mCandidates[j].preBreak - leftEdge;
// compute width score for line
// Note: the "bestHope" optimization makes the assumption that, when delta
// is non-negative, widthScore will increase monotonically as successive
// candidate breaks are considered.
float widthScore = 0.0f;
float additionalPenalty = 0.0f;
if ((atEnd || !mJustified) && delta < 0) {
widthScore = SCORE_OVERFULL;
} else if (atEnd && mStrategy != kBreakStrategy_Balanced) {
// increase penalty for hyphen on last line
additionalPenalty =
LAST_LINE_PENALTY_MULTIPLIER * mCandidates[j].penalty;
// Penalize very short (< 1 - shortLineFactor of total width) lines.
float underfill = delta - shortLineFactor * width;
widthScore = underfill > 0 ? underfill * underfill : 0;
} else {
widthScore = delta * delta;
if (delta < 0) {
if (-delta < maxShrink * (mCandidates[i].postSpaceCount -
mCandidates[j].preSpaceCount)) {
widthScore *= SHRINK_PENALTY_MULTIPLIER;
} else {
widthScore = SCORE_OVERFULL;
}
}
}
if (delta < 0) {
active = j + 1;
} else {
bestHope = widthScore;
}
float score = jScore + widthScore + additionalPenalty;
if (score <= best) {
best = score;
bestPrev = j;
}
}
mCandidates[i].score = best + mCandidates[i].penalty + mLinePenalty;
mCandidates[i].prev = bestPrev;
mCandidates[i].lineNumber = mCandidates[bestPrev].lineNumber + 1;
#if VERBOSE_DEBUG
ALOGD("break %zd: score=%g, prev=%zd", i, mCandidates[i].score,
mCandidates[i].prev);
#endif
}
finishBreaksOptimal();
}
