Document DOMImplementationImp::createHTMLDocument(const std::u16string& title)
{
try {
DocumentPtr document = std::make_shared<DocumentImp>();
document->setContentType(u"text/html");
DocumentType doctype = createDocumentType(u"html", u"", u""); // TODO: set node document
document->appendChild(doctype);
Element html = document->createElement(u"html");
document->appendChild(html);
Element head = document->createElement(u"head");
html.appendChild(head);
if (!title.empty()) {
Element t = document->createElement(u"title");
head.appendChild(t);
Text text = document->createTextNode(title);
t.appendChild(text);
}
Element body = document->createElement(u"body");
html.appendChild(body);
// TODO: Step 8.
return document;
} catch (...) {
return nullptr;
}
}
void KMX_Environment::Load(std::u16string const & key, std::u16string const & value) {
assert(!key.empty());
if (!u16icmp(key.c_str(), KM_KBP_KMX_ENV_PLATFORM)) {
_platform = value;
}
else if (!u16icmp(key.c_str(), KM_KBP_KMX_ENV_BASELAYOUT)) {
_baseLayout = value;
}
else if (!u16icmp(key.c_str(), KM_KBP_KMX_ENV_BASELAYOUTALT)) {
_baseLayoutAlt = value;
}
else if (!u16icmp(key.c_str(), KM_KBP_KMX_ENV_SIMULATEALTGR)) {
_simulateAltGr = value == u"1";
}
else if (!u16icmp(key.c_str(), KM_KBP_KMX_ENV_CAPSLOCK)) {
_capsLock = value == u"1";
}
else if (!u16icmp(key.c_str(), KM_KBP_KMX_ENV_BASELAYOUTGIVESCTRLRALTFORRALT)) {
_baseLayoutGivesCtrlRAltForRAlt = value == u"1";
}
else {
// Unsupported key
assert(false);
}
}
void CustomStyle::draw(Painter &p, const std::u16string &text, Style::TextElement elt,
const WidgetState& st, const Rect &r, const Style::Extra &extra) const {
const Margin& m = extra.margin;
p.setFont (font);
p.translate(r.x,r.y);
const Sprite& icon = iconSprite(extra.icon,st,r);
int dX=0;
if( !icon.size().isEmpty() && elt!=TE_CheckboxTitle ){
p.setColor(Color(1.f));
p.setTexture( icon );
if( text.empty() ) {
p.drawRect( (r.w-icon.w())/2, (r.h-icon.h())/2, icon.w(), icon.h() );
} else {
p.drawRect( m.left, (r.h-icon.h())/2, icon.w(), icon.h() );
}
}
switch( elt ){
case TE_LabelTitle:
case TE_CheckboxTitle:
p.setColor(Color(0,0,0,1));
break;
default:
p.setColor(extra.fontColor);
}
const Size txtSz=extra.font.textSize(text);
p.drawText( m.left+dX+(r.w-dX-m.xMargin()-txtSz.w)/2, (r.h-txtSz.h)/2, r.w-m.xMargin(), txtSz.h, text, AlignBottom );
p.translate(-r.x,-r.y);
}
void MediaListImp::setMediaText(const std::u16string& mediaText)
{
clear();
if (!mediaText.empty()) {
CSSParser parser;
*this = *parser.parseMediaList(mediaText);
}
}
bool UTF16ToUTF8(const std::u16string& utf16, std::string& outUtf8)
{
if (utf16.empty())
{
outUtf8.clear();
return true;
}
return llvm::convertUTF16ToUTF8String(utf16, outUtf8);
}
void LineEdit::IntValidator::erase(std::u16string &string,
size_t &scursor,
size_t &ecursor) const {
Validator::erase(string,scursor,ecursor);
if(string.size()==1 && string[0]=='-')
string[0] = '0';
if(string.empty())
string.push_back('0');
}
bool HTMLElementImp::toUnsigned(std::u16string& value)
{
stripLeadingAndTrailingWhitespace(value);
if (value.empty())
return false;
const char16_t* s = value.c_str();
while (*s) {
if (!isDigit(*s))
return false;
++s;
}
return true;
}
void WordSuggest::suggest(std::u16string input, Dictionary const * pDictionary, std::u16string& rBestSuggestion)
{
// Clear up
mSuggestions.clear();
mThresholds.clear();
// Fallback for suggestion
rBestSuggestion = u"";
// Only do something when there is input
if (!input.empty())
{
// Decide whether word should start with big letter
bool startsWithUpperCase = false;
char16_t lowerCaseLetter = input[0];
if (toLower(lowerCaseLetter))
{
startsWithUpperCase = lowerCaseLetter != input[0];
}
// Ask for suggestions
std::vector<std::u16string> suggestions = pDictionary->similarWords(input, startsWithUpperCase);
uint i = 0;
for (const std::u16string& rSuggestion : suggestions)
{
mSuggestions.push_back(std::move(mpAssetManager->createTextSimple(mFontSize, 1, rSuggestion)));
// Only add maximal allowed number of suggestions
if (++i >= WORD_SUGGEST_MAX_SUGGESTIONS)
{
break;
}
}
// Save best suggestion
if (!suggestions.empty())
{
// First one is best
rBestSuggestion = suggestions[0];
}
// Prepare thresholds
mThresholds.resize(mSuggestions.size(), LerpValue(0));
// Transform and position the suggestions initially
transformSuggestions();
positionSuggestions();
}
}
void LineEdit::IntValidator::insert(std::u16string &string,
size_t &cursor, size_t &ecursor,
char16_t data) const {
if( cursor==0 ){
if(!string.empty() && string[0]=='-')
return;
if(data=='-' && !(string.size()>=1 && string[0]=='0')){
Validator::insert(string,cursor,ecursor,data);
return;
}
if(data=='0' && ((string.size()==1 && string[0]=='-') || string.size()==0)){
Validator::insert(string,cursor,ecursor,data);
return;
}
if(('1'<=data && data<='9') || data=='-'){
Validator::insert(string,cursor,ecursor,data);
return;
}
return;
}
const size_t pos = cursor-1;
if( data=='0'
&& !(pos<string.size() && string[pos]=='-')
&& !(string.size()==1 && string[0]=='0') ){
Validator::insert(string,cursor,ecursor,data);
return;
}
if('1'<=data && data<='9'){
if(string.size()==1 && string[0]=='0'){
string.clear();
cursor = 0;
ecursor = cursor;
}
Validator::insert(string,cursor,ecursor,data);
return;
}
}
bool convertUTF16ToUTF8String(const std::u16string& utf16, std::string &Out) {
assert(Out.empty());
// Avoid OOB by returning early on empty input.
if (utf16.empty())
return true;
const UTF16 *Src = reinterpret_cast<const UTF16 *>(utf16.data());
const UTF16 *SrcEnd = reinterpret_cast<const UTF16 *>(utf16.data() + utf16.length());
// Byteswap if necessary.
std::vector<UTF16> ByteSwapped;
if (Src[0] == UNI_UTF16_BYTE_ORDER_MARK_SWAPPED) {
ByteSwapped.insert(ByteSwapped.end(), Src, SrcEnd);
for (size_t I = 0, E = ByteSwapped.size(); I != E; ++I)
ByteSwapped[I] = SwapByteOrder_16(ByteSwapped[I]);
Src = &ByteSwapped[0];
SrcEnd = &ByteSwapped[ByteSwapped.size() - 1] + 1;
}
// Skip the BOM for conversion.
if (Src[0] == UNI_UTF16_BYTE_ORDER_MARK_NATIVE)
Src++;
// Just allocate enough space up front. We'll shrink it later.
Out.resize(utf16.length() * UNI_MAX_UTF8_BYTES_PER_CODE_POINT + 1);
UTF8 *Dst = reinterpret_cast<UTF8 *>(&Out[0]);
UTF8 *DstEnd = Dst + Out.size();
ConversionResult CR =
ConvertUTF16toUTF8(&Src, SrcEnd, &Dst, DstEnd, strictConversion);
assert(CR != targetExhausted);
if (CR != conversionOK) {
Out.clear();
return false;
}
Out.resize(reinterpret_cast<char *>(Dst) - &Out[0]);
return true;
}
std::vector<TextFlow::Word> TextFlow::calculateFitWord(std::u16string content, int maxPixelWidth, float scale) const
{
// Calculate word from content
Word word = calculateWord(content, scale);
// End of recursion
if ((content.size() == 1 && word.pixelWidth > maxPixelWidth) || content.empty())
{
// Return empty vector as signal of failure
return std::vector<Word>();
}
else if (word.pixelWidth <= maxPixelWidth)
{
// If word length is ok, just return it
return std::vector<Word>(1, word);
}
else
{
// Word is too wide and content longer than 1, split it!
int length = (int)content.size();
int left = length / 2;
int right = length - left;
// Combine results from recursive call
std::vector<Word> leftWord = calculateFitWord(content.substr(0, left), maxPixelWidth, scale);
std::vector<Word> rightWord = calculateFitWord(content.substr(left+1, right), maxPixelWidth, scale);
// If one or more of both are empty, forget it
if (leftWord.empty() || rightWord.empty())
{
return std::vector<Word>();
}
else
{
std::vector<Word> words(leftWord);
words.insert(words.end(), rightWord.begin(), rightWord.end());
return words;
}
}
}
bool HTMLElementImp::toPxOrPercentage(std::u16string& value)
{
stripLeadingAndTrailingWhitespace(value);
if (value.empty())
return false;
const char16_t* s = value.c_str();
while (*s) {
if (*s == '%')
break;
if (!isDigit(*s))
return false;
++s;
}
if (!*s) {
value += u"px";
return true;
}
assert(*s == '%');
if (!s[1] && 1 < value.length())
return true;
return false;
}
bool TextFlow::insertFitWord(std::vector<TextFlow::Word>& rWords, const std::u16string& rContent, int maxPixelWidth, float scale) const
{
// Do nothing if input is empty
if (rContent.empty())
{
return true;
}
std::vector<Word> newWords = calculateFitWord(rContent, maxPixelWidth, scale);
// Check, whether call was successful
if (newWords.empty())
{
// Was not successful, so return false
return false;
}
else
{
// Insert new words and return true
rWords.insert(rWords.end(), newWords.begin(), newWords.end());
return true;
}
}
void RenderString::CreateRenderCharacters(const std::u16string& newString) {
if (!newString.empty() && mFont) {
int advanceAccum = 0; // the accumulated horizontal advance for the current line
int kerningAccum = 0; // the accumulated kerning offset for the current line
int lineOffset = 0; // the vertical offset of the current line
int lineHeight = mFont->GetLineHeight(); // retrieve and store the new line offset
if (!mString.empty() && !mRenderChars.empty()) { // if we already have characters entered...
if (mString.back() == u'\n') { // if the last character entered was a new line...
lineOffset = mRenderChars.back().mLineHeight + lineHeight; // adjust the line offset for following characters
}
else {
// laod the states of the accumulators from the previous characters entered
advanceAccum = mRenderChars.back().mAdvanceAccum;
kerningAccum = mRenderChars.back().mKerningAccum;
lineOffset = mRenderChars.back().mLineHeight;
kerningAccum += mFont->GetKerning(mString.back(), newString.front()); // adjust the kerning offset for the new character
}
}
for (unsigned int i = 0u; i < newString.size(); ++i) {
char16_t codePoint = newString.at(i);
if (codePoint == u'\n') { // if the current character is a new line...
advanceAccum = 0; // reset the horizontal advance
kerningAccum = 0; // reset the kerning offset
lineOffset += lineHeight; // increment the vertical offset by the new line height
continue; // go to the next character
}
try {
const FontBase::Glyph& glyph = mFont->GetGlyph(codePoint); // get the glyph object for the current character
Shape shape = glyph.mBaseShape; // get the glyph shape from the glyph object
float height = 0.0f; // the height of the glyph shape used for positional offsetting
{
const std::vector<glm::vec2>& bbox = shape.GetLocalBoundingBox(); // get the bounding box of the glyph
if (!bbox.empty()) { // if the bounding box is valid...
height = bbox.at(2).y - bbox.at(0).y; // calculate the height of the glyph shape
}
}
shape.SetPosition(glm::vec2((advanceAccum + kerningAccum) + glyph.mBearing.x,
((mFont->GetBearingMax().y - glyph.mBearing.y) - mFont->GetBearingMax().y) + lineOffset)); // position the glyph shape
{ // update the local bounding box
// get the bounding box of the newly added character
std::vector<glm::vec2> bbox = shape.GetGlobalBoundingBox();
if (bbox.size() > 3) { // if the bounding box is valid...
mTopLeft.x = std::min(bbox.at(0).x, mTopLeft.x);
mTopLeft.y = std::min(bbox.at(0).y, mTopLeft.y);
mBottomRight.x = std::max(bbox.at(2).x, mBottomRight.x);
mBottomRight.y = std::max(bbox.at(2).y, mBottomRight.y);
}
}
advanceAccum += glyph.mAdvance; // increment the horizontal advance accumulator by the current glyph's advance metric
if (i != newString.size() - 1) { // if this is not the final character in the string...
kerningAccum += mFont->GetKerning(codePoint, newString.at(i + 1)); // increment the kerning offset by the kerning value of this and the next character
}
mRenderChars.push_back({std::move(shape), advanceAccum, kerningAccum, lineOffset,
mTopLeft, mBottomRight});
} catch(std::exception& e) {
std::cout << "unknown codepoint: " << codePoint << std::endl;
}
}
// update the full sized (not yet scaled) local bounding box
glm::vec2 dimensions = mBottomRight - mTopLeft;
mLocalBoundingBoxFull.clear();
mLocalBoundingBoxFull.emplace_back(0.0f, 0.0f);
mLocalBoundingBoxFull.emplace_back(dimensions.x, 0.0f);
mLocalBoundingBoxFull.emplace_back(dimensions.x, dimensions.y);
mLocalBoundingBoxFull.emplace_back(0.0f, dimensions.y);
}
}
