Node* _floor(Node* node, const Key& key) const
{
if (! node || node == _end) return nullptr;
else if (key > node->key)
{
Node* result = _floor(node->right, key);
return result ? result : node;
}
else return _floor(node->left, key);
}
inline float GdiFont::GetWidthFromCharacter( wchar_t c )
{
unsigned int idx = GetGlyphByCharacter(c);
if (idx > 0 && idx < font_count)
return m_FontGlyphs[idx].w;
if (c >= 0x2000)
{
return m_nFontSize;
}
else
{
return _floor(m_nFontSize / 2);
}
}
Iterator floor(const Key& key) const
{
return _floor(_root, key);
}
