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Work on TextField

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This commit is contained in:
Jack Andersen
2015-12-19 18:39:09 -10:00
parent 5d56ef2cf6
commit 95fd2f90a9
12 changed files with 366 additions and 31 deletions
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33
specter/lib/TextView.cpp
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@@ -355,6 +355,8 @@ void TextView::typesetGlyphs(const std::string& str, const Zeus::CColor& default
m_glyphs.reserve(str.size());
m_glyphDims.clear();
m_glyphDims.reserve(str.size());
m_glyphAdvs.clear();
m_glyphAdvs.reserve(str.size());
int adv = 0;
while (rem)
@@ -378,6 +380,7 @@ void TextView::typesetGlyphs(const std::string& str, const Zeus::CColor& default
adv += DoKern(m_fontAtlas.lookupKern(lCh, glyph->m_glyphIdx), m_fontAtlas);
m_glyphs.emplace_back(adv, *glyph, defaultColor);
m_glyphDims.emplace_back(glyph->m_width, glyph->m_height);
m_glyphAdvs.push_back(adv);
lCh = glyph->m_glyphIdx;
rem -= sz;
@@ -422,6 +425,8 @@ void TextView::typesetGlyphs(const std::wstring& str, const Zeus::CColor& defaul
m_glyphs.reserve(str.size());
m_glyphDims.clear();
m_glyphDims.reserve(str.size());
m_glyphAdvs.clear();
m_glyphAdvs.reserve(str.size());
int adv = 0;
for (wchar_t ch : str)
@@ -437,6 +442,7 @@ void TextView::typesetGlyphs(const std::wstring& str, const Zeus::CColor& defaul
adv += DoKern(m_fontAtlas.lookupKern(lCh, glyph->m_glyphIdx), m_fontAtlas);
m_glyphs.emplace_back(adv, *glyph, defaultColor);
m_glyphDims.emplace_back(glyph->m_width, glyph->m_height);
m_glyphAdvs.push_back(adv);
lCh = glyph->m_glyphIdx;
@@ -516,5 +522,32 @@ std::pair<int,int> TextView::queryGlyphDimensions(size_t pos) const
return m_glyphDims[pos];
}
size_t TextView::reverseSelectGlyph(int x) const
{
size_t ret = 0;
size_t idx = 1;
int minDelta = abs(x);
for (int adv : m_glyphAdvs)
{
int thisDelta = abs(adv-x);
if (thisDelta < minDelta)
{
minDelta = thisDelta;
ret = idx;
}
++idx;
}
return ret;
}
int TextView::queryReverseAdvance(size_t idx) const
{
if (idx > m_glyphAdvs.size())
Log.report(LogVisor::FatalError,
"TextView::queryReverseGlyph(%" PRISize ") out of inclusive bounds: %" PRISize,
idx, m_glyphAdvs.size());
if (!idx) return 0;
return m_glyphAdvs[idx-1];
}
}