bool nuiTextLayout::LayoutParagraph(int32 start, int32 length)
{
//printf("new paragraph: %d + %d\n", start, length);
float spacewidth = 0;
float tabwidth = 0;
{
nuiFontBase* pFont = mStyle.GetFont();
nuiGlyphInfo glyphinfo;
uint32 space = pFont->GetGlyphIndex(32);
pFont->GetGlyphInfo(glyphinfo, space, nuiFontBase::eGlyphNative);
spacewidth = glyphinfo.AdvanceX;
tabwidth = 4 * spacewidth;
}
mpParagraphs.push_back(new Paragraph());
nuiTextLine* pLine = new nuiTextLine(*this, 0, 0);
mpParagraphs.back()->push_back(pLine);
// Split the paragraph into ranges:
nuiTextRangeList ranges;
nuiSplitText(mUnicode, ranges, nuiST_ScriptChange, start, length, &Split);
{
nuiTextRangeList::iterator it = ranges.begin();
nuiTextRangeList::iterator end = ranges.end();
int32 origin = start;
int32 i = 0;
while (it != end)
{
const nuiTextRange& range(*it);
int32 len = range.mLength;
int32 pos = origin;
//printf("\trange %d (%d - %d) (%s - %s)\n", i, pos, len, nuiGetUnicodeScriptName(range.mScript).GetChars(), nuiGetUnicodeRangeName(range.mRange).GetChars());
std::set<nglUChar>& charset(mCharsets[range.mScript]);
{
while (pos < origin + len)
{
nglUChar ch = mUnicode[pos++];
if (ucisprint(ch) && ch > 32)
charset.insert(ch);
}
}
origin += len;
++it;
i++;
}
}
{
auto styleit = mStyleChanges.begin();
auto styleend = mStyleChanges.end();
nuiTextStyle style = mStyle;
nuiTextRangeList::iterator it = ranges.begin();
nuiTextRangeList::iterator end = ranges.end();
uint32 i = 0;
uint32 pos = start;
int32 oldp = -1;
while (it != end)
{
const nuiTextRange& range(*it);
uint32 len = range.mLength;
//printf("\trange %d (%d - %d) (%s - %s)\n", i, pos, len, nuiGetUnicodeScriptName(range.mScript).GetChars(), nuiGetUnicodeRangeName(range.mRange).GetChars());
nglUChar ch = mUnicode[pos];
nuiTextRun* pRun = NULL;
while (len > 0 && styleit != styleend)
{
if (ch < 32)
{
int32 tabs = 0;
int32 spaces = 0;
for (uint32 i = pos; i < pos + len && mUnicode[i] < 32; i++)
{
if (mUnicode[i] == 9)
tabs++;
else
spaces++;
}
pRun = new nuiTextRun(*this, pos, len, spacewidth * (float)spaces + tabwidth * (float)tabs, 0.0f);
if (styleit != styleend)
{
int32 p = styleit->first;
NGL_ASSERT(oldp <= p); oldp = p;
if ((p >= pos) && (p < pos + len))
{
style = styleit->second;
++styleit;
}
}
pos += len;
len = 0;
}
else
{
if (styleit != styleend)
{
int32 p = styleit->first;
NGL_ASSERT(oldp <= p); oldp = p;
if ((p >= pos) && (p < pos + len))
{
// Change the style now:
int32 newpos = styleit->first;
int32 s = newpos - pos;
if (s > 0)
{
//printf ("Cutting run to change style (%d - %d)\n", pos, s);
pRun = new nuiTextRun(*this, range.mScript, pos, s, style);
pLine->AddRun(pRun);
pRun = NULL;
}
style = styleit->second;
pos += s;
len -= s;
++styleit;
}
else
break;
}
}
}
if (len > 0)
{
pRun = new nuiTextRun(*this, range.mScript, pos, len, style);
pos += len;
len = 0;
}
if (pRun)
pLine->AddRun(pRun);
++i;
++it;
}
}
return true;
}
bool nuiTextLayout::LayoutParagraph(int32 start, int32 length)
{
//printf("new paragraph: %d + %d\n", start, length);
float spacewidth = 0;
{
nuiFontBase* pFont = mStyle.GetFont();
nuiGlyphInfo glyphinfo;
uint32 space = pFont->GetGlyphIndex(32);
pFont->GetGlyphInfo(glyphinfo, space, nuiFontBase::eGlyphNative);
spacewidth = glyphinfo.AdvanceX;
}
mpParagraphs.push_back(new Paragraph());
nuiTextLine* pLine = new nuiTextLine(*this, 0, 0);
mpParagraphs.back()->push_back(pLine);
// Split the paragraph into ranges:
nuiTextRangeList ranges;
nuiSplitText(mUnicode, ranges, nuiST_ScriptChange, start, length, &Split);
{
nuiTextRangeList::iterator it = ranges.begin();
nuiTextRangeList::iterator end = ranges.end();
int32 origin = start;
int32 i = 0;
while (it != end)
{
const nuiTextRange& range(*it);
int32 len = range.mLength;
int32 pos = origin;
//printf("\trange %d (%d - %d) (%s - %s)\n", i, pos, len, nuiGetUnicodeScriptName(range.mScript).GetChars(), nuiGetUnicodeRangeName(range.mRange).GetChars());
std::set<nglUChar>& charset(mCharsets[range.mScript]);
{
while (pos < origin + len)
{
nglUChar ch = mUnicode[pos++];
if (ucisprint(ch) && ch > 32)
charset.insert(ch);
}
}
origin += len;
++it;
i++;
}
}
{
nuiTextRangeList::iterator it = ranges.begin();
nuiTextRangeList::iterator end = ranges.end();
uint32 i = 0;
uint32 pos = start;
while (it != end)
{
const nuiTextRange& range(*it);
uint32 len = range.mLength;
//printf("\trange %d (%d - %d) (%s - %s)\n", i, pos, len, nuiGetUnicodeScriptName(range.mScript).GetChars(), nuiGetUnicodeRangeName(range.mRange).GetChars());
nglUChar ch = mUnicode[pos];
nuiTextRun* pRun = NULL;
if (ch < 32)
{
int32 tabs = 0;
for (uint32 i = pos; i < pos + range.mLength; i++)
{
if (mUnicode[i] == 9)
tabs++;
}
if (tabs > 0)
{
pRun = new nuiTextRun(*this, pos, len, spacewidth * (float)tabs, 0.0f);
}
}
else
{
pRun = new nuiTextRun(*this, range.mScript, pos, len, mStyle);
}
if (pRun)
pLine->AddRun(pRun);
pos += len;
++i;
++it;
}
}
return true;
}
