bool ZLTextArea::_getHyperlinkInfo(const ZLTextElementRectangle &rectangle, std::string &id, std::string &type, ZLTextKind& hyperlinkKind, int& x1, int&y1, int& x2, int& y2) const {
if ((rectangle.Kind != ZLTextElement::WORD_ELEMENT) &&
(rectangle.Kind != ZLTextElement::IMAGE_ELEMENT)) {
return false;
}
ZLTextWordCursor cursor = startCursor();
cursor.moveToParagraph(rectangle.ParagraphIndex);
cursor.moveToParagraphStart();
hyperlinkKind = REGULAR;
for (int i = 0; i < rectangle.ElementIndex; ++i) {
const ZLTextElement &element = cursor.element();
if (element.kind() == ZLTextElement::CONTROL_ELEMENT) {
const ZLTextControlEntry &control = ((const ZLTextControlElement&)element).entry();
if (control.isHyperlink()) {
hyperlinkKind = control.kind();
id = ((const ZLTextHyperlinkControlEntry&)control).label();
type = ((const ZLTextHyperlinkControlEntry&)control).hyperlinkType();
x1 = rectangle.XStart;
y1 = rectangle.YStart;
x2 = rectangle.XEnd;
y2 = rectangle.YEnd;
} else if (!control.isStart() && (control.kind() == hyperlinkKind)) {
hyperlinkKind = REGULAR;
}
}
cursor.nextWord();
}
return hyperlinkKind != REGULAR;
}
ZLTextWordCursor ZLTextAreaController::findStart(const ZLTextWordCursor &end, SizeUnit unit, int size) {
ZLTextWordCursor start = end;
size -= paragraphHeight(start, true, unit);
bool positionChanged = !start.isStartOfParagraph();
start.moveToParagraphStart();
while (size > 0) {
if (positionChanged && start.paragraphCursor().isEndOfSection()) {
break;
}
if (!start.previousParagraph()) {
break;
}
if (!start.paragraphCursor().isEndOfSection()) {
positionChanged = true;
}
size -= paragraphHeight(start, false, unit);
}
skip(start, unit, -size);
if (unit != LINE_UNIT) {
bool sameStart = start == end;
if (!sameStart && start.isEndOfParagraph() && end.isStartOfParagraph()) {
ZLTextWordCursor startCopy = start;
startCopy.nextParagraph();
sameStart = startCopy == end;
}
if (sameStart) {
start = findStart(end, LINE_UNIT, 1);
}
}
return start;
}
bool ScrollToHomeAction::isEnabled() const {
if (!isVisible()) {
return false;
}
ZLTextWordCursor cursor = FBReader::Instance().bookTextView().textArea().startCursor();
return cursor.isNull() || !cursor.isStartOfParagraph() || !cursor.paragraphCursor().isFirst();
}
bool BookTextView::getHyperlinkInfo(const ZLTextElementRectangle &rectangle, std::string &id, ZLHyperlinkType &type) const {
if ((rectangle.Kind != ZLTextElement::WORD_ELEMENT) &&
(rectangle.Kind != ZLTextElement::IMAGE_ELEMENT)) {
return false;
}
ZLTextWordCursor cursor = textArea().startCursor();
cursor.moveToParagraph(rectangle.ParagraphIndex);
cursor.moveToParagraphStart();
ZLTextKind hyperlinkKind = REGULAR;
for (int i = 0; i < rectangle.ElementIndex; ++i) {
const ZLTextElement &element = cursor.element();
if (element.kind() == ZLTextElement::CONTROL_ELEMENT) {
const ZLTextControlEntry &control = ((const ZLTextControlElement&)element).entry();
if (control.isHyperlink()) {
hyperlinkKind = control.kind();
id = ((const ZLTextHyperlinkControlEntry&)control).label();
type = ((const ZLTextHyperlinkControlEntry&)control).hyperlinkType();
} else if (!control.isStart() && (control.kind() == hyperlinkKind)) {
hyperlinkKind = REGULAR;
}
}
cursor.nextWord();
}
return hyperlinkKind != REGULAR;
}
bool BookTextView::getHyperlinkId(const ZLTextElementArea &area, std::string &id, bool &isExternal) const {
if ((area.Kind != ZLTextElement::WORD_ELEMENT) &&
(area.Kind != ZLTextElement::IMAGE_ELEMENT)) {
return false;
}
ZLTextWordCursor cursor = startCursor();
cursor.moveToParagraph(area.ParagraphNumber);
cursor.moveToParagraphStart();
ZLTextKind hyperlinkKind = REGULAR;
for (int i = 0; i < area.TextElementNumber; ++i) {
const ZLTextElement &element = cursor.element();
if (element.kind() == ZLTextElement::CONTROL_ELEMENT) {
const ZLTextControlEntry &control = ((const ZLTextControlElement&)element).entry();
if (control.isHyperlink()) {
hyperlinkKind = control.kind();
id = ((const ZLTextHyperlinkControlEntry&)control).label();
} else if (!control.isStart() && (control.kind() == hyperlinkKind)) {
hyperlinkKind = REGULAR;
}
}
cursor.nextWord();
}
isExternal = hyperlinkKind == EXTERNAL_HYPERLINK;
return hyperlinkKind != REGULAR;
}
std::string FBView::word(const ZLTextElementArea &area) const {
std::string txt;
if (area.Kind == ZLTextElement::WORD_ELEMENT) {
ZLTextWordCursor cursor = startCursor();
cursor.moveToParagraph(area.ParagraphIndex);
cursor.moveTo(area.ElementIndex, 0);
const ZLTextWord &word = (ZLTextWord&)cursor.element();
ZLUnicodeUtil::Ucs4String ucs4;
ZLUnicodeUtil::utf8ToUcs4(ucs4, word.Data, word.Size);
ZLUnicodeUtil::Ucs4String::iterator it = ucs4.begin();
while ((it != ucs4.end()) && !ZLUnicodeUtil::isLetter(*it)) {
++it;
}
if (it != ucs4.end()) {
ucs4.erase(ucs4.begin(), it);
it = ucs4.end() - 1;
while (!ZLUnicodeUtil::isLetter(*it)) {
--it;
}
ucs4.erase(it + 1, ucs4.end());
ZLUnicodeUtil::ucs4ToUtf8(txt, ucs4);
}
}
return txt;
}
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());
}
void ZLTextView::ViewStyle::applyControls(const ZLTextWordCursor &begin, const ZLTextWordCursor &end) {
for (ZLTextWordCursor cursor = begin; !cursor.equalWordNumber(end); cursor.nextWord()) {
const ZLTextElement &element = cursor.element();
if (element.kind() == ZLTextElement::CONTROL_ELEMENT) {
applyControl((ZLTextControlElement&)element);
} else if (element.kind() == ZLTextElement::FORCED_CONTROL_ELEMENT) {
applyControl((ZLTextForcedControlElement&)element);
}
}
}
bool strongContains(const ZLTextSelectionModel::Range &range, const ZLTextWordCursor &cursor) {
const int pn = cursor.paragraphCursor().index();
const int wn = cursor.elementIndex();
return
((range.first.ParagraphIndex < pn) ||
((range.first.ParagraphIndex == pn) &&
(range.first.ElementIndex < wn))) &&
((range.second.ParagraphIndex > pn) ||
((range.second.ParagraphIndex == pn) &&
(range.second.ElementIndex > wn)));
}
size_t ZLTextView::PositionIndicator::sizeOfTextBeforeCursor(const ZLTextWordCursor &cursor) const {
const size_t paragraphIndex = cursor.paragraphCursor().index();
const size_t paragraphLength = cursor.paragraphCursor().paragraphLength();
if (paragraphLength == 0) {
return sizeOfTextBeforeParagraph(paragraphIndex);
} else {
return
sizeOfTextBeforeParagraph(paragraphIndex) +
muldiv(sizeOfParagraph(paragraphIndex), cursor.elementIndex(), paragraphLength);
}
}
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));
}
ZLTextWordCursor ZLTextAreaController::buildInfos(const ZLTextWordCursor &start) {
myArea.myLineInfos.clear();
ZLTextWordCursor cursor = start;
int textHeight = myArea.height();
int counter = 0;
do {
ZLTextWordCursor paragraphEnd = cursor;
paragraphEnd.moveToParagraphEnd();
ZLTextWordCursor paragraphStart = cursor;
paragraphStart.moveToParagraphStart();
ZLTextArea::Style style(myArea, myArea.myProperties.baseStyle());
style.applyControls(paragraphStart, cursor);
ZLTextLineInfoPtr info = new ZLTextLineInfo(cursor, style.textStyle(), style.bidiLevel());
while (!info->End.isEndOfParagraph()) {
info = myArea.processTextLine(style, info->End, paragraphEnd);
textHeight -= info->Height + info->Descent;
if ((textHeight < 0) && (counter > 0)) {
break;
}
textHeight -= info->VSpaceAfter;
cursor = info->End;
myArea.myLineInfos.push_back(info);
if (textHeight < 0) {
break;
}
++counter;
}
} while (cursor.isEndOfParagraph() && cursor.nextParagraph() && !cursor.paragraphCursor().isEndOfSection() && (textHeight >= 0));
return cursor;
}
void ZLTextAreaController::skip(ZLTextWordCursor &cursor, SizeUnit unit, int size) {
ZLTextWordCursor paragraphStart = cursor;
paragraphStart.moveToParagraphStart();
ZLTextWordCursor paragraphEnd = cursor;
paragraphEnd.moveToParagraphEnd();
ZLTextArea::Style style(myArea, myArea.myProperties.baseStyle());
style.applyControls(paragraphStart, cursor);
while (!cursor.isEndOfParagraph() && (size > 0)) {
const ZLTextLineInfoPtr info =
myArea.processTextLine(style, cursor, paragraphEnd);
cursor = info->End;
size -= infoHeight(*info, unit);
}
}
bool CollectionView::_onStylusPress(int x, int y) {
fbreader().setHyperlinkCursor(false);
const ZLTextElementArea *imageArea = elementByCoordinates(x, y);
if ((imageArea != 0) && (imageArea->Kind == ZLTextElement::IMAGE_ELEMENT)) {
ZLTextWordCursor cursor = startCursor();
cursor.moveToParagraph(imageArea->ParagraphIndex);
cursor.moveTo(imageArea->ElementIndex, 0);
const ZLTextElement &element = cursor.element();
if (element.kind() != ZLTextElement::IMAGE_ELEMENT) {
return false;
}
const ZLTextImageElement &imageElement = (ZLTextImageElement&)element;
const std::string &id = imageElement.id();
if (id == CollectionModel::BookInfoImageId) {
editBookInfo(collectionModel().bookByParagraphIndex(imageArea->ParagraphIndex));
return true;
} else if (id == CollectionModel::RemoveBookImageId) {
removeBook(collectionModel().bookByParagraphIndex(imageArea->ParagraphIndex));
return true;
} else if (id == CollectionModel::RemoveTagImageId) {
removeTag(collectionModel().tagByParagraphIndex(imageArea->ParagraphIndex));
return true;
} else if (id == CollectionModel::TagInfoImageId) {
editTagInfo(collectionModel().tagByParagraphIndex(imageArea->ParagraphIndex));
return true;
} else {
return false;
}
}
int index = paragraphIndexByCoordinates(x, y);
if (index == -1) {
return false;
}
BookDescriptionPtr book = collectionModel().bookByParagraphIndex(index);
if (!book.isNull()) {
fbreader().openBook(book);
fbreader().showBookTextView();
return true;
}
return false;
}
void ZLTextView::PositionIndicator::draw() {
ZLTextBaseStyle &baseStyle = ZLTextStyleCollection::instance().baseStyle();
ZLPaintContext &context = this->context();
ZLTextWordCursor endCursor = myTextView.endCursor();
bool isEndOfText = false;
if (endCursor.isEndOfParagraph()) {
isEndOfText = !endCursor.nextParagraph();
}
myExtraWidth = 0;
if (myInfo.isTimeShown()) {
drawExtraText(timeString());
}
if (myInfo.isBatteryShown()) {
drawExtraText(batteryString());
}
if (myInfo.isTextPositionShown()) {
drawExtraText(textPositionString());
}
const long bottom = this->bottom();
const long top = this->top();
const long left = this->left();
const long right = this->right();
if (left >= right) {
return;
}
size_t fillWidth = right - left - 1;
if (!isEndOfText) {
fillWidth =
muldiv(fillWidth, sizeOfTextBeforeCursor(myTextView.endCursor()), sizeOfTextBeforeParagraph(endTextIndex()));
}
context.setColor(baseStyle.RegularTextColorOption.value());
context.setFillColor(myInfo.color());
context.fillRectangle(myTextView.visualX(left + 1), top + 1, myTextView.visualX(left + fillWidth + 1), bottom - 1);
context.drawLine(myTextView.visualX(left), top, myTextView.visualX(right), top);
context.drawLine(myTextView.visualX(left), bottom, myTextView.visualX(right), bottom);
context.drawLine(myTextView.visualX(left), bottom, myTextView.visualX(left), top);
context.drawLine(myTextView.visualX(right), bottom, myTextView.visualX(right), top);
}
int ZLTextAreaController::paragraphHeight(const ZLTextWordCursor &cursor, bool beforeCurrentPosition, SizeUnit unit) {
ZLTextWordCursor word = cursor;
word.moveToParagraphStart();
ZLTextWordCursor end = cursor;
if (!beforeCurrentPosition) {
end.moveToParagraphEnd();
}
int size = 0;
ZLTextArea::Style style(myArea, myArea.myProperties.baseStyle());
while (!word.equalElementIndex(end)) {
const ZLTextLineInfoPtr info = myArea.processTextLine(style, word, end);
word = info->End;
size += infoHeight(*info, unit);
}
return size;
}
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()];
}
void ZLTextSelectionModel::extendWordSelectionToParagraph() {
clear();
myFirstBound.Before.ElementIndex = 0;
myFirstBound.Before.CharIndex = 0;
myFirstBound.After = myFirstBound.Before;
ZLTextWordCursor cursor = myView.startCursor();
cursor.moveToParagraph(myFirstBound.Before.ParagraphIndex);
cursor.moveToParagraphEnd();
mySecondBound.Before.ElementIndex = cursor.elementIndex();
mySecondBound.Before.CharIndex = 0;
mySecondBound.After = mySecondBound.Before;
myIsEmpty = false;
myTextIsUpToDate = false;
myRangeVectorIsUpToDate = false;
myDoUpdate = false;
}
void ZLTextView::PositionIndicator::draw() {
ZLPaintContext &context = this->context();
ZLTextWordCursor endCursor = myTextView.textArea().endCursor();
bool isEndOfText = false;
if (endCursor.isEndOfParagraph()) {
isEndOfText = !endCursor.nextParagraph();
}
myExtraWidth = 0;
if (myInfo.isTimeShown()) {
drawExtraText(timeString());
}
if (myInfo.isTextPositionShown()) {
drawExtraText(textPositionString());
}
const long bottom = this->bottom();
const long top = this->top();
const long left = this->left();
const long right = this->right();
if (left >= right) {
return;
}
size_t fillWidth = right - left - 1;
if (!isEndOfText) {
fillWidth =
muldiv(fillWidth, sizeOfTextBeforeCursor(myTextView.textArea().endCursor()), sizeOfTextBeforeParagraph(endTextIndex()));
}
context.setColor(myTextView.color());
context.setFillColor(myInfo.color());
context.fillRectangle(left + 1, top + 1, left + fillWidth + 1, bottom - 1);
context.drawLine(left, top, right, top);
context.drawLine(left, bottom, right, bottom);
context.drawLine(left, bottom, left, top);
context.drawLine(right, bottom, right, top);
}
void ZLTextSelectionModel::extendWordSelectionToParagraph() {
clear();
myFirstBound.Before.ElementIndex = 0;
myFirstBound.Before.CharIndex = 0;
myFirstBound.After = myFirstBound.Before;
ZLTextWordCursor cursor = myArea.startCursor();
cursor.moveToParagraph(myFirstBound.Before.ParagraphIndex);
cursor.moveToParagraphEnd();
mySecondBound.Before.ElementIndex = cursor.elementIndex();
mySecondBound.Before.CharIndex = 0;
mySecondBound.After = mySecondBound.Before;
myIsEmpty = false;
myTextIsUpToDate = false;
myRangeVectorIsUpToDate = false;
copySelectionToClipboard(ZLDialogManager::CLIPBOARD_SELECTION);
}
int ZLTextSelectionModel::charIndex(const ZLTextElementArea &area, int x) {
myView.myStyle.setTextStyle(area.Style, area.BidiLevel);
ZLTextWordCursor cursor = myView.startCursor();
cursor.moveToParagraph(area.ParagraphIndex);
const ZLTextWord &word = (const ZLTextWord&)cursor.paragraphCursor()[area.ElementIndex];
const bool mainDir =
area.BidiLevel % 2 == myView.myStyle.baseBidiLevel() % 2;
const int deltaX = mainDir ? x - area.XStart : area.XEnd - x;
const int len = area.Length;
const int start = area.StartCharIndex;
int diff = deltaX;
int previousDiff = diff;
int index;
for (index = 0; (index < len) && (diff > 0); ++index) {
previousDiff = diff;
diff = deltaX - myView.myStyle.wordWidth(word, start, index + 1);
}
if (previousDiff + diff < 0) {
--index;
}
return start + index;
}
int ZLTextSelectionModel::charIndex(const ZLTextElementRectangle &rectangle, int x) {
int x1 = x - myArea.hOffset();
ZLTextArea::Style style(myArea, rectangle.Style);
style.setTextStyle(rectangle.Style, rectangle.BidiLevel);
ZLTextWordCursor cursor = myArea.startCursor();
cursor.moveToParagraph(rectangle.ParagraphIndex);
const ZLTextWord &word = (const ZLTextWord&)cursor.paragraphCursor()[rectangle.ElementIndex];
const bool mainDir =
rectangle.BidiLevel % 2 == (myArea.isRtl() ? 1 : 0);
const int deltaX = mainDir ? x1 - rectangle.XStart : rectangle.XEnd - x1;
const int len = rectangle.Length;
const int start = rectangle.StartCharIndex;
int diff = deltaX;
int previousDiff = diff;
int index;
for (index = 0; (index < len) && (diff > 0); ++index) {
previousDiff = diff;
diff = deltaX - style.wordWidth(word, start, index + 1);
}
if (previousDiff + diff < 0) {
--index;
}
return start + index;
}
std::string BookTextView::getFirstInternalHyperlinkId(int x0, int y0, int x1, int y1) {
std::string id;
std::string type;
const ZLTextElementArea * area = elementByCoordinates(x0, y0);
const ZLTextElementArea * stop_area = elementByCoordinates(x1, y1);
if ( !area || ((area->Kind != ZLTextElement::WORD_ELEMENT) &&
(area->Kind != ZLTextElement::IMAGE_ELEMENT))) {
return id;
}
ZLTextWordCursor cursor = startCursor();
cursor.moveToParagraph(area->ParagraphIndex);
int paragraphs = area->ParagraphIndex;
int end_paragraphs = stop_area ? stop_area->ParagraphIndex : 0;
do
{
cursor.moveToParagraphStart();
ZLTextKind hyperlinkKind = REGULAR;
for ( ; !cursor.isEndOfParagraph();) {
const ZLTextElement &element = cursor.element();
if (element.kind() == ZLTextElement::CONTROL_ELEMENT) {
const ZLTextControlEntry &control = ((const ZLTextControlElement&)element).entry();
if (control.isHyperlink()) {
hyperlinkKind = control.kind();
id = ((const ZLTextHyperlinkControlEntry&)control).label();
type = ((const ZLTextHyperlinkControlEntry&)control).hyperlinkType();
if (type == "internal")
{
return id;
}
} else if (!control.isStart() && (control.kind() == hyperlinkKind)) {
hyperlinkKind = REGULAR;
}
}
cursor.nextWord();
}
} while( ++paragraphs <= end_paragraphs && cursor.nextParagraph());
return std::string();
}
BookTextView::Position BookTextView::cursorPosition(const ZLTextWordCursor &cursor) const {
return Position(cursor.paragraphCursor().index(), cursor.elementIndex(), cursor.charIndex());
}
BookTextView::Position BookTextView::cursorPosition(const ZLTextWordCursor &cursor) const {
return Position(cursor.paragraphCursor().index(), cursor.wordNumber());
}
bool ZLTextSelectionModel::selectWord(int x, int y) {
clear();
const ZLTextElementRectangle *rectangle = myArea.elementByCoordinates(x, y);
if (rectangle == 0) {
return false;
}
int startIndex = 0;
int endIndex = 1;
switch (rectangle->Kind) {
default:
return false;
case ZLTextElement::IMAGE_ELEMENT:
break;
case ZLTextElement::WORD_ELEMENT:
{
ZLTextWordCursor cursor = myArea.startCursor();
cursor.moveToParagraph(rectangle->ParagraphIndex);
const ZLTextWord &word = (const ZLTextWord&)cursor.paragraphCursor()[rectangle->ElementIndex];
ZLUnicodeUtil::Ucs4String ucs4string;
ZLUnicodeUtil::utf8ToUcs4(ucs4string, word.Data, word.Size);
startIndex = charIndex(*rectangle, x);
if (startIndex == word.Length) {
--startIndex;
}
endIndex = startIndex + 1;
ZLUnicodeUtil::Ucs4Char ch = ucs4string[startIndex];
if (ZLUnicodeUtil::isLetter(ch) || (('0' <= ch) && (ch <= '9'))) {
while (--startIndex >= 0) {
ch = ucs4string[startIndex];
if (!ZLUnicodeUtil::isLetter(ch) && ((ch < '0') || (ch > '9'))) {
break;
}
}
++startIndex;
while (++endIndex <= word.Length) {
ch = ucs4string[endIndex - 1];
if (!ZLUnicodeUtil::isLetter(ch) && ((ch < '0') || (ch > '9'))) {
break;
}
}
--endIndex;
}
}
}
myFirstBound.Before.Exists = true;
myFirstBound.Before.ParagraphIndex = rectangle->ParagraphIndex;
myFirstBound.Before.ElementIndex = rectangle->ElementIndex;
myFirstBound.Before.CharIndex = startIndex;
myFirstBound.After = myFirstBound.Before;
mySecondBound.Before = myFirstBound.Before;
mySecondBound.Before.CharIndex = endIndex;
mySecondBound.After = mySecondBound.Before;
myIsEmpty = false;
myTextIsUpToDate = false;
myRangeVectorIsUpToDate = false;
copySelectionToClipboard(ZLDialogManager::CLIPBOARD_SELECTION);
return true;
}
bool NetLibraryView::_onStylusPress(int x, int y) {
fbreader().setHyperlinkCursor(false);
if (model().isNull()) {
return false;
}
const ZLTextElementArea *imageArea = elementByCoordinates(x, y);
if ((imageArea == 0) || (imageArea->Kind != ZLTextElement::IMAGE_ELEMENT)) {
return false;
}
ZLTextWordCursor cursor = startCursor();
cursor.moveToParagraph(imageArea->ParagraphIndex);
cursor.moveTo(imageArea->ElementIndex, 0);
const ZLTextElement &element = cursor.element();
if (element.kind() != ZLTextElement::IMAGE_ELEMENT) {
return false;
}
const ZLTextImageElement &imageElement = (ZLTextImageElement&)element;
const std::string &id = imageElement.id();
shared_ptr<NetworkBookInfo> book = myParagraphToBookMap[imageArea->ParagraphIndex];
if (book.isNull()) {
return false;
}
if ((id == DownloadEpub) || (id == DownloadMobi)) {
if (!ZLNetworkManager::instance().connect()) {
NetworkOperationRunnable::showErrorMessage(
ZLResource::resource("dialog")
["networkError"]
["couldntConnectToNetworkMessage"].value()
);
return false;
}
NetworkBookInfo::URLType format = (id == DownloadEpub) ? NetworkBookInfo::BOOK_EPUB : NetworkBookInfo::BOOK_MOBIPOCKET;
DownloadBookRunnable downloader(*book, format);
downloader.executeWithUI();
if (downloader.hasErrors()) {
downloader.showErrorMessage();
} else {
BookDescriptionPtr description = BookDescription::getDescription(downloader.fileName());
WritableBookDescription wDescription(*description);
wDescription.clearAuthor();
wDescription.addAuthor(book->Author.DisplayName, book->Author.SortKey);
wDescription.title() = book->Title;
wDescription.language() = book->Language;
for (std::vector<std::string>::const_iterator it = book->Tags.begin(); it != book->Tags.end(); ++it) {
wDescription.addTag(*it);
}
wDescription.saveInfo();
fbreader().openBook(description);
fbreader().setMode(FBReader::BOOK_TEXT_MODE);
rebuildModel();
}
return true;
} else if ((id == ReadLocalEpub) || (id == ReadLocalMobi)) {
NetworkBookInfo::URLType format = (id == DownloadEpub) ? NetworkBookInfo::BOOK_EPUB : NetworkBookInfo::BOOK_MOBIPOCKET;
fbreader().openFile(NetworkLinkCollection::instance().bookFileName(book->URLByType[format]));
fbreader().setMode(FBReader::BOOK_TEXT_MODE);
return true;
} else if (id == OpenInBrowser) {
std::string url = book->URLByType[NetworkBookInfo::LINK_HTTP];
shared_ptr<ProgramCollection> collection = fbreader().webBrowserCollection();
if (!url.empty() && !collection.isNull()) {
shared_ptr<Program> program = collection->currentProgram();
if (!program.isNull()) {
program->run("openLink", url);
}
}
return true;
}
return false;
}
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;
}
}
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;
}
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);
}
}