// Added by John to enable caller to get text from current visible page. void ZLTextSelectionModel::text(std::string & text, int max) { text.clear(); ZLTextWordCursor start = myView.startCursor(); ZLTextWordCursor end = myView.endCursor(); ZLTextWordCursor cursor = start; while (cursor < end) { if (cursor.isEndOfParagraph()) { cursor.nextParagraph(); continue; } const ZLTextElement &element = cursor.element(); switch (element.kind()) { case ZLTextElement::WORD_ELEMENT: { const ZLTextWord &word = (const ZLTextWord&)element; if (cursor.sameElementAs(end)) { if (start.sameElementAs(end)) { int skip = ZLUnicodeUtil::length(word.Data, start.charIndex()); int length = ZLUnicodeUtil::length(word.Data, end.charIndex()) - skip; text.append(word.Data + skip, length); } else { text.append(word.Data, ZLUnicodeUtil::length(word.Data, end.charIndex())); } } else if (cursor.charIndex() == 0) { text.append(word.Data, word.Size); } else /* cursor == start */ { int skip = ZLUnicodeUtil::length(word.Data, cursor.charIndex()); text.append(word.Data + skip, word.Size - skip); } } break; case ZLTextElement::HSPACE_ELEMENT: case ZLTextElement::NB_HSPACE_ELEMENT: { text += ' '; } break; } cursor.nextWord(); if (text.size() >= max) { return; } } }
BookTextView::Position BookTextView::cursorPosition(const ZLTextWordCursor &cursor) const { return Position(cursor.paragraphCursor().index(), cursor.elementIndex(), cursor.charIndex()); }
void ZLTextView::prepareTextLine(const ZLTextLineInfo &info, int y) { y = std::min(y + info.Height, topMargin() + textAreaHeight()); myStyle.setTextStyle(info.StartStyle, info.StartBidiLevel); int spaceCounter = info.SpaceCounter; int fullCorrection = 0; const bool endOfParagraph = info.End.isEndOfParagraph(); bool wordOccured = false; int x = lineStartMargin() + info.StartIndent; const int fontSize = myStyle.textStyle()->fontSize(); // TODO: change metrics at font change const ZLTextStyleEntry::Metrics metrics(fontSize, fontSize / 2, viewWidth(), textAreaHeight()); switch (myStyle.textStyle()->alignment()) { case ALIGN_RIGHT: if (!myStyle.baseIsRtl()) { x += metrics.FullWidth - myStyle.textStyle()->lineEndIndent(metrics, myStyle.baseIsRtl()) - info.Width; } break; case ALIGN_LEFT: if (myStyle.baseIsRtl()) { x += metrics.FullWidth - myStyle.textStyle()->lineEndIndent(metrics, myStyle.baseIsRtl()) - info.Width; } break; case ALIGN_LINESTART: break; case ALIGN_CENTER: x += (metrics.FullWidth - myStyle.textStyle()->lineEndIndent(metrics, myStyle.baseIsRtl()) - info.Width) / 2; break; case ALIGN_JUSTIFY: if (!endOfParagraph && (info.End.element().kind() != ZLTextElement::AFTER_PARAGRAPH_ELEMENT)) { fullCorrection = metrics.FullWidth - myStyle.textStyle()->lineEndIndent(metrics, myStyle.baseIsRtl()) - info.Width; } break; case ALIGN_UNDEFINED: break; } const ZLTextParagraphCursor ¶graph = info.RealStart.paragraphCursor(); int paragraphIndex = paragraph.index(); for (ZLTextWordCursor pos = info.RealStart; !pos.equalElementIndex(info.End); pos.nextWord()) { const ZLTextElement &element = paragraph[pos.elementIndex()]; ZLTextElement::Kind kind = element.kind(); int width = myStyle.elementWidth(element, pos.charIndex(), metrics); myStyle.applySingleControl(element); switch (kind) { case ZLTextElement::WORD_ELEMENT: case ZLTextElement::IMAGE_ELEMENT: { const int height = myStyle.elementHeight(element, metrics); const int descent = myStyle.elementDescent(element); const int length = (kind == ZLTextElement::WORD_ELEMENT) ? ((const ZLTextWord&)element).Length - pos.charIndex() : 0; addAreaToTextMap( ZLTextElementArea( paragraphIndex, pos.elementIndex(), pos.charIndex(), length, false, myStyle.textStyle(), kind, x, x + width - 1, y - height + 1, y + descent, myStyle.bidiLevel() ) ); wordOccured = true; break; } case ZLTextElement::CONTROL_ELEMENT: case ZLTextElement::FORCED_CONTROL_ELEMENT: break; case ZLTextElement::HSPACE_ELEMENT: case ZLTextElement::NB_HSPACE_ELEMENT: if (wordOccured && (spaceCounter > 0)) { int correction = fullCorrection / spaceCounter; x += context().spaceWidth() + correction; fullCorrection -= correction; wordOccured = false; --spaceCounter; } break; case ZLTextElement::INDENT_ELEMENT: case ZLTextElement::BEFORE_PARAGRAPH_ELEMENT: case ZLTextElement::AFTER_PARAGRAPH_ELEMENT: case ZLTextElement::EMPTY_LINE_ELEMENT: case ZLTextElement::FIXED_HSPACE_ELEMENT: break; case ZLTextElement::START_REVERSED_SEQUENCE_ELEMENT: //context().setColor(ZLColor(0, 255, 0)); //context().drawLine(visualX(x), y, visualX(x), y - 20); break; case ZLTextElement::END_REVERSED_SEQUENCE_ELEMENT: flushRevertedElements(myStyle.bidiLevel()); //context().setColor(ZLColor(255, 0, 0)); //context().drawLine(visualX(x), y, visualX(x), y - 20); break; } x += width; } if (!endOfParagraph && (info.End.element().kind() == ZLTextElement::WORD_ELEMENT)) { int start = 0; if (info.End.equalElementIndex(info.RealStart)) { start = info.RealStart.charIndex(); } const int len = info.End.charIndex() - start; if (len > 0) { const ZLTextWord &word = (const ZLTextWord&)info.End.element(); ZLUnicodeUtil::Ucs4String ucs4string; ZLUnicodeUtil::utf8ToUcs4(ucs4string, word.Data, word.Size); const bool addHyphenationSign = ucs4string[start + len - 1] != '-'; const int width = myStyle.wordWidth(word, start, len, addHyphenationSign); const int height = myStyle.elementHeight(word, metrics); const int descent = myStyle.elementDescent(word); addAreaToTextMap( ZLTextElementArea( paragraphIndex, info.End.elementIndex(), start, len, addHyphenationSign, myStyle.textStyle(), ZLTextElement::WORD_ELEMENT, x, x + width - 1, y - height + 1, y + descent, word.BidiLevel ) ); } } for (unsigned char i = myStyle.bidiLevel(); i > myStyle.baseBidiLevel(); --i) { flushRevertedElements(i - 1); } }
void ZLTextSelectionModel::createData() const { if (!myTextIsUpToDate && !isEmpty()) { Range r = internalRange(); ZLTextWordCursor start = myArea.startCursor(); start.moveToParagraph(r.first.ParagraphIndex); start.moveTo(r.first.ElementIndex, r.first.CharIndex); ZLTextWordCursor end = myArea.startCursor(); end.moveToParagraph(r.second.ParagraphIndex); end.moveTo(r.second.ElementIndex, r.second.CharIndex); std::set<ZLTextParagraphCursorPtr> pcursors; pcursors.insert(start.paragraphCursorPtr()); ZLTextWordCursor cursor = start; while (cursor < end) { if (cursor.isEndOfParagraph()) { cursor.nextParagraph(); pcursors.insert(cursor.paragraphCursorPtr()); myText.append(ZLibrary::EndOfLine); continue; } const ZLTextElement &element = cursor.element(); switch (element.kind()) { case ZLTextElement::WORD_ELEMENT: { const ZLTextWord &word = (const ZLTextWord&)element; if (cursor.sameElementAs(end)) { if (start.sameElementAs(end)) { int skip = ZLUnicodeUtil::length(word.Data, start.charIndex()); int length = ZLUnicodeUtil::length(word.Data, end.charIndex()) - skip; myText.append(word.Data + skip, length); } else { myText.append(word.Data, ZLUnicodeUtil::length(word.Data, end.charIndex())); } } else if (cursor.charIndex() == 0) { myText.append(word.Data, word.Size); } else /* cursor == start */ { int skip = ZLUnicodeUtil::length(word.Data, cursor.charIndex()); myText.append(word.Data + skip, word.Size - skip); } break; } case ZLTextElement::IMAGE_ELEMENT: if (myImage.isNull()) { myImage = ((const ZLTextImageElement&)element).image(); } break; case ZLTextElement::HSPACE_ELEMENT: case ZLTextElement::NB_HSPACE_ELEMENT: myText += ' '; break; default: break; } cursor.nextWord(); } if ((cursor == end) && !cursor.isEndOfParagraph() && myImage.isNull()) { const ZLTextElement &element = cursor.element(); if (element.kind() == ZLTextElement::IMAGE_ELEMENT) { myImage = ((const ZLTextImageElement&)element).image(); } } myCursors.swap(pcursors); myTextIsUpToDate = true; } }