void CPDF_Font::CheckFontMetrics() {
if (m_FontBBox.top == 0 && m_FontBBox.bottom == 0 && m_FontBBox.left == 0 &&
m_FontBBox.right == 0) {
FXFT_Face face = m_Font.GetFace();
if (face) {
m_FontBBox.left = TT2PDF(FXFT_Get_Face_xMin(face), face);
m_FontBBox.bottom = TT2PDF(FXFT_Get_Face_yMin(face), face);
m_FontBBox.right = TT2PDF(FXFT_Get_Face_xMax(face), face);
m_FontBBox.top = TT2PDF(FXFT_Get_Face_yMax(face), face);
m_Ascent = TT2PDF(FXFT_Get_Face_Ascender(face), face);
m_Descent = TT2PDF(FXFT_Get_Face_Descender(face), face);
} else {
bool bFirst = true;
for (int i = 0; i < 256; i++) {
FX_RECT rect = GetCharBBox(i);
if (rect.left == rect.right) {
continue;
}
if (bFirst) {
m_FontBBox = rect;
bFirst = false;
} else {
if (m_FontBBox.top < rect.top) {
m_FontBBox.top = rect.top;
}
if (m_FontBBox.right < rect.right) {
m_FontBBox.right = rect.right;
}
if (m_FontBBox.left > rect.left) {
m_FontBBox.left = rect.left;
}
if (m_FontBBox.bottom > rect.bottom) {
m_FontBBox.bottom = rect.bottom;
}
}
}
}
}
if (m_Ascent == 0 && m_Descent == 0) {
FX_RECT rect = GetCharBBox('A');
m_Ascent = rect.bottom == rect.top ? m_FontBBox.top : rect.top;
rect = GetCharBBox('g');
m_Descent = rect.bottom == rect.top ? m_FontBBox.bottom : rect.bottom;
}
}
FX_BOOL CFX_GEFont::GetCharBBox(FX_WCHAR wUnicode,
CFX_Rect& bbox,
FX_BOOL bCharCode) {
return GetCharBBox(wUnicode, bbox, TRUE, bCharCode);
}
