bool IPAddress::IsIP6(StringRef val)
{
RETURN_FALSE_IF_EMPTY(val);
in6_addr sAddr; // IPv6地址结构体
int r = inet_pton((int)SocketAddressFamily::IP6, val.c_str(), &sAddr);
return r > 0; //<=0 means error
}
bool IPAddress::IsIP(StringRef val)
{
//IP address format:<ddd.ddd.ddd.ddd>
RETURN_FALSE_IF_EMPTY(val);
in_addr sAddr; // IPv4地址结构体
int r = inet_pton((int)SocketAddressFamily::IP, val.c_str(), &sAddr);
return r > 0; //<=0 means error
}
bool IFileLoadable::LoadFromFileSystem(const FileIdRef& fileId, uint format/*=(uint)-1*/)
{
MemoryByteData data = FileSystem::Instance().ReadAllData(fileId);
if (format == (uint)-1)
{
format = OnCheckFormat(fileId.Name);
}
RETURN_FALSE_IF_EMPTY(data);
return LoadFromData(fileId.Name, data, format);
}
bool IPAddress::IsPort(StringRef inValue)
{
//Port format:<d*>
RETURN_FALSE_IF_EMPTY(inValue);
size_t length = inValue.Length();
for (size_t i = 0; i < length; i++)
{
if (!isdigit(inValue[i]))
{
return false;
}
}
return true;
}
bool TextLayouter::LayoutMultipleLineText(List<Share<BaseFontMesh>>& outMeshes, List<TextureAtlasPage*>& outPages, Size2F& outSize,
IFont& font,
const WStringRef& text,
Alignment alignment/*=Alignment::LeftBottom*/,
const Size2F& restrictSize/*==Size2F::Zero*/,
ILabel* label/*=nullptr*/,
bool isStatic/*=false*/)
{
RETURN_FALSE_IF_EMPTY(text);
outSize = restrictSize;
List<WHeapString> outLines;
List<float> outLineWidths;
if (restrictSize.Width != 0)
{
if (!WordWrapWithWidth(outLines, outLineWidths, outSize.Width, font, text, restrictSize.Width))
{
Log::Error("Invalid layout");
return false;
}
}
else
{
if (!WordWrap(outLines, outLineWidths, outSize.Width, font, text))
{
Log::Error("Invalid layout");
return false;
}
}
outSize.Height = static_cast<float>(outLineWidths.Count()*font.LineHeight());
ReserveMesh(outMeshes, text);
auto maxOrigin= LayoutMultipleLineMesh(outMeshes,outPages, font, outSize, outLineWidths, outLines, alignment, restrictSize, label);
outSize = GetBoundingSize(restrictSize.Width,outSize.Height,maxOrigin, alignment, restrictSize);
ShrinkMesh(outMeshes);
return true;
}
bool TextLayouter::LayoutSingleLineText(List<Share<BaseFontMesh>>& outMeshes, List<TextureAtlasPage*>& outPages,
Size2F& outSize,
IFont& font,
const WStringRef& text,
Alignment alignment/*=Alignment::LeftBottom*/,
const Size2F& restrictSize/*=Size2F::Zero*/,
ILabel* label/*=nullptr*/,
bool isStatic/*=false*/)
{
RETURN_FALSE_IF_EMPTY(text);
outSize = restrictSize;
WHeapString outString;
ExpandSingleLine(font, text, outString, outSize.Width);
outSize.Height = (float)font.LineHeight();
ReserveMesh(outMeshes, text);
auto maxOrigin= LayoutSingleLineMesh(outMeshes,outPages, font, outSize, outSize.Width, outString, alignment, restrictSize, label);
outSize = GetBoundingSize(restrictSize.Width,(float)font.LineHeight(),maxOrigin, alignment, restrictSize);
ShrinkMesh(outMeshes);
return true;
}
bool StringTable::Initialize(const FileIdRef& fileId, uint format /*= 0*/)
{
MemoryByteData data = FileSystem::Instance().ReadAllData(fileId);
RETURN_FALSE_IF_EMPTY(data);
return LoadFromData(fileId.Name, data, format);
}
bool TextLayouter::WordWrapWithWidth(List<WHeapString>& outLines, List<float>& outLineWidths, float& outMaxWidth, IFont& font, const WStringRef& text, float restrictWidth)
{
RETURN_FALSE_IF_EMPTY(text);
outMaxWidth = 0;
/*
items begins with "ok", record the offset can break line according to "Unicode Line Breaking Algorithm".
items begins with "fit", record the line width,the max pos that can allow chars
for each char width array, add char width to w
then compare w to width limit that passed in
when w < width limit, will update items that begins with "fit"
after updated,check if it's the fit break line pos according to "Unicode Line Breaking Algorithm"
if yes,update "ok" items .
if w> width limit, output current line datas.
*/
uint textLength = static_cast<uint>(text.Length());
uint okBegin = 0;
float okWidth = 0;
float fitWidth = 0;
outLines.Append(WHeapString::Empty);
WHeapString* line = &outLines.Last();
float lineWidth = 0;
for (uint i = 0; i < textLength; ++i)
{
wchar c = text[i];
switch (c)
{
case L'\n':
{
//force to break line
//add left chars to cur line
line->Append(text.c_str() + okBegin, i - okBegin); //ignore '\n'
okWidth += fitWidth;
lineWidth += okWidth;
outLineWidths.Add(lineWidth);
outMaxWidth = Math::Max(outMaxWidth, lineWidth);
outLines.Append(WHeapString::Empty);
line = &outLines.Last();
lineWidth = 0;
fitWidth = 0;
okWidth = 0;
okBegin = i + 1;
}
break;
case L'\t':
{
//add left chars to line
line->Append(text.c_str() + okBegin, i - okBegin); //ignore '\t'
okWidth += fitWidth;
lineWidth += okWidth;
okBegin = i + 1;
fitWidth = 0;
okWidth = 0;
//try to expand tab
float spaceWidth = (float)font.SpaceWidth();
float copyFitWidth = fitWidth;
size_t spaceCount = 0;
size_t planSpaceCount = TabWidth - line->Length() % TabWidth;
FOR_EACH_SIZE(j, planSpaceCount)
{
copyFitWidth += spaceWidth;
if (copyFitWidth > restrictWidth)
{
spaceCount = j;
break;
}
}
//add left chars
if (spaceCount == 0) //can add all spaces
{
line->Append(L' ', planSpaceCount);
lineWidth += planSpaceCount*spaceWidth;
}
else
{
//add some spaces
line->Append(L' ', spaceCount);
lineWidth += spaceCount*spaceWidth;
//have to break line
outLineWidths.Add(lineWidth);
outMaxWidth = Math::Max(outMaxWidth, lineWidth);
outLines.Append(WHeapString::Empty);
line = &outLines.Last();
lineWidth = 0;
}
}
break;
case L'\r':
case L'\f':
case L'\v':
//ignore
break;
default:
{
float charWidth = GetCharWidth(font, c);
fitWidth += charWidth;
if (fitWidth < restrictWidth)
{
if (IsLineBreak(text, i))
{
//safe to add current ok chars to line
line->Append(text.c_str() + okBegin, i - okBegin + 1);
okWidth += fitWidth;
lineWidth += okWidth;
okWidth = 0;
okBegin = i + 1;
fitWidth = 0;
}
else
{
//do nothing
}
}
else
{
//have to break line
//cur line is enough
okWidth += fitWidth - charWidth;
lineWidth += okWidth;
outLineWidths.Add(lineWidth);
outMaxWidth = Math::Max(outMaxWidth, lineWidth);
outLines.Append(WHeapString::Empty);
line = &outLines.Last();
line->Append(text.c_str() + okBegin, i - okBegin + 1);
fitWidth = charWidth;
okWidth = charWidth;
okBegin = i + 1;
lineWidth = 0;
// generate next line
//add left chars to next line
}
}
break;
}
}
