Ejemplo n.º 1
0
std::vector<size_t>::const_iterator ZLTextView::nextBreakIterator() const {
    ZLTextWordCursor cursor = endCursor();
    if (cursor.isNull()) {
        cursor = startCursor();
    }
    if (cursor.isNull()) {
        return myTextBreaks.begin();
    }
    return std::lower_bound(myTextBreaks.begin(), myTextBreaks.end(), cursor.paragraphCursor().index());
}
Ejemplo n.º 2
0
bool ScrollToHomeAction::isEnabled() const {
	if (!isVisible()) {
		return false;
	}
	ZLTextWordCursor cursor = FBReader::Instance().bookTextView().textArea().startCursor();
	return cursor.isNull() || !cursor.isStartOfParagraph() || !cursor.paragraphCursor().isFirst();
}
Ejemplo n.º 3
0
size_t ZLTextView::PositionIndicator::sizeOfTextBeforeParagraph(size_t paragraphIndex) const {
	if (myTextView.myModel->kind() == ZLTextModel::TREE_MODEL) {
		ZLTextWordCursor cursor = myTextView.startCursor();
		if (cursor.isNull()) {
			cursor = myTextView.endCursor();
		}
		if (!cursor.isNull()) {
			const ZLTextTreeModel &treeModel = (const ZLTextTreeModel&)*myTextView.myModel;
			size_t sum = 0;
			for (size_t i = 0; i < paragraphIndex; ++i) {
				const ZLTextTreeParagraph *para = (const ZLTextTreeParagraph*)treeModel[i];
				if (para->parent()->isOpen()) {
					sum += sizeOfParagraph(i);
				}
			}
			return sum;
		}
	}
	return myTextView.myTextSize[paragraphIndex] - myTextView.myTextSize[startTextIndex()];
}
Ejemplo n.º 4
0
void IfEmptyWordList()
{
	if (acwlistcount == 0)
	{
		ZLTextWordCursor cr = is_footnote_mode() ? footview->textArea().startCursor() : bookview->textArea().startCursor();
		int paragraph = !cr.isNull() ? cr.paragraphCursor().index() : 0;

		if (acwlistcount + 3 >= acwlistsize)
		{
			acwlistsize = acwlistsize + (acwlistsize >> 1) + 64;
			acwordlist = (SynWordList *)realloc(acwordlist, acwlistsize * sizeof(SynWordList));
		}
bool ZLTextAreaController::preparePaintInfo() {
	if ((myPaintState == NOTHING_TO_PAINT) || (myPaintState == READY)) {
		return false;
	}

            myArea.myLineInfoCache.insert(myArea.myLineInfos.begin(), myArea.myLineInfos.end());



	switch (myPaintState) {
		default:
			break;
		case TO_SCROLL_FORWARD:
			if (!myArea.myEndCursor.paragraphCursor().isLast() ||
					!myArea.myEndCursor.isEndOfParagraph()) {
				ZLTextWordCursor startCursor;
				switch (myScrollingMode) {
					case NO_OVERLAPPING:
						break;
					case KEEP_LINES:
						startCursor = findLineFromEnd(myOverlappingValue);
						break;
					case SCROLL_LINES:
						startCursor = findLineFromStart(myOverlappingValue);
						if (startCursor.isEndOfParagraph()) {
							startCursor.nextParagraph();
						}
						break;
					case SCROLL_PERCENTAGE:
						startCursor = findPercentFromStart(myOverlappingValue);
						break;
				}

				if (!startCursor.isNull() && (startCursor == myArea.myStartCursor)) {

					startCursor = findLineFromStart(1);

				}

				if (!startCursor.isNull()) {

					ZLTextWordCursor endCursor = buildInfos(startCursor);


					if (!visiblePageIsEmpty() && ((myScrollingMode != KEEP_LINES) || (endCursor != myArea.myEndCursor))) {

                                                    myArea.myStartCursor = startCursor;
                                                    myArea.myEndCursor = endCursor;

						break;
					}

				}

                                    myArea.myStartCursor = myArea.myEndCursor;
                                    myArea.myEndCursor = buildInfos(myArea.myStartCursor);

			}
			break;
		case TO_SCROLL_BACKWARD:
			if (!myArea.myStartCursor.paragraphCursor().isFirst() || !myArea.myStartCursor.isStartOfParagraph()) {
				switch (myScrollingMode) {
					case NO_OVERLAPPING:
						myArea.myStartCursor = findStart(myArea.myStartCursor, PIXEL_UNIT, myArea.height());
						break;
					case KEEP_LINES:
					{
						ZLTextWordCursor endCursor = findLineFromStart(myOverlappingValue);
						if (!endCursor.isNull() && (endCursor == myArea.myEndCursor)) {
							endCursor = findLineFromEnd(1);
						}
						if (!endCursor.isNull()) {
							ZLTextWordCursor startCursor = findStart(endCursor, PIXEL_UNIT, myArea.height());
							myArea.myStartCursor =
								(startCursor != myArea.myStartCursor) ?
									startCursor : findStart(myArea.myStartCursor, PIXEL_UNIT, myArea.height());
						} else {
							myArea.myStartCursor = findStart(myArea.myStartCursor, PIXEL_UNIT, myArea.height());
						}
						break;
					}
					case SCROLL_LINES:
						myArea.myStartCursor = findStart(myArea.myStartCursor, LINE_UNIT, myOverlappingValue);
						break;
					case SCROLL_PERCENTAGE:
						myArea.myStartCursor =
							findStart(myArea.myStartCursor, PIXEL_UNIT, myArea.height() * myOverlappingValue / 100);
						break;
				}
				myArea.myEndCursor = buildInfos(myArea.myStartCursor);
				if (visiblePageIsEmpty()) {
					myArea.myStartCursor = findStart(myArea.myStartCursor, LINE_UNIT, 1);
					myArea.myEndCursor = buildInfos(myArea.myStartCursor);
				}
			}
			break;
		case START_IS_KNOWN:
			myArea.myEndCursor = buildInfos(myArea.myStartCursor);
			if (visiblePageIsEmpty()) {
				ZLTextWordCursor startCursor = findLineFromStart(1);
				if (!startCursor.isNull()) {
					myArea.myStartCursor = startCursor;
					if (myArea.myStartCursor.isEndOfParagraph()) {
						myArea.myStartCursor.nextParagraph();
					}
					myArea.myEndCursor = buildInfos(myArea.myStartCursor);
				}
			}
			break;
		case END_IS_KNOWN:
			myArea.myStartCursor = findStart(myArea.myEndCursor, PIXEL_UNIT, myArea.height());
			myArea.myEndCursor = buildInfos(myArea.myStartCursor);
			break;
	}

        myPaintState = READY;
        myArea.myLineInfoCache.clear();
	return true;
}