status_t
ServerFont::GetGlyphShapes(const char charArray[], int32 numChars,
BShape* shapeArray[]) const
{
if (!charArray || numChars <= 0 || !shapeArray)
return B_BAD_DATA;
FT_Face face = GetTransformedFace(true, true);
if (!face)
return B_ERROR;
FT_Outline_Funcs funcs;
funcs.move_to = MoveToFunc;
funcs.line_to = LineToFunc;
funcs.conic_to = ConicToFunc;
funcs.cubic_to = CubicToFunc;
funcs.shift = 0;
funcs.delta = 0;
const char* string = charArray;
for (int i = 0; i < numChars; i++) {
shapeArray[i] = new (std::nothrow) BShape();
if (shapeArray[i] == NULL) {
PutTransformedFace(face);
return B_NO_MEMORY;
}
FT_Load_Char(face, UTF8ToCharCode(&string), FT_LOAD_NO_BITMAP);
FT_Outline outline = face->glyph->outline;
FT_Outline_Decompose(&outline, &funcs, shapeArray[i]);
shapeArray[i]->Close();
}
PutTransformedFace(face);
return B_OK;
}
bool
ParagraphLayout::_AppendGlyphInfos(const TextSpan& span)
{
int charCount = span.CountChars();
if (charCount == 0)
return true;
const BString& text = span.Text();
const BFont& font = span.Style().Font();
// Allocate arrays
float* escapementArray = new (std::nothrow) float[charCount];
if (escapementArray == NULL)
return false;
ArrayDeleter<float> escapementDeleter(escapementArray);
// Fetch glyph spacing information
font.GetEscapements(text, charCount, escapementArray);
// Append to glyph buffer and convert escapement scale
float size = font.Size();
const char* c = text.String();
for (int i = 0; i < charCount; i++) {
if (!_AppendGlyphInfo(UTF8ToCharCode(&c), escapementArray[i] * size,
span.Style())) {
return false;
}
}
return true;
}
bool
FontCacheEntry::HasGlyphs(const char* utf8String, ssize_t length) const
{
uint32 glyphCode;
const char* start = utf8String;
while ((glyphCode = UTF8ToCharCode(&utf8String))) {
if (fGlyphCache->FindGlyph(glyphCode) == NULL)
return false;
if (utf8String - start + 1 > length)
break;
}
return true;
}
bool
FontCacheEntry::HasGlyphs(const char* utf8String, ssize_t length) const
{
uint32 charCode;
const char* start = utf8String;
while ((charCode = UTF8ToCharCode(&utf8String))) {
uint32 glyphIndex = fEngine.GlyphIndexForGlyphCode(charCode);
if (!fGlyphCache->FindGlyph(glyphIndex))
return false;
if (utf8String - start + 1 > length)
break;
}
return true;
}
void
MarkupParser::_ParseText(const BString& text)
{
int32 start = 0;
int32 offset = 0;
int32 charCount = text.CountChars();
const char* c = text.String();
while (offset <= charCount) {
uint32 nextChar = UTF8ToCharCode(&c);
switch (nextChar) {
case '\n':
case '\0':
_CopySpan(text, start, offset);
_FinishParagraph();
start = offset + 1;
break;
case '\'':
if (offset + 2 < charCount && c[0] == '\'') {
int32 tickCount = 2;
if (c[1] == '\'')
tickCount = 3;
// Copy previous span using current style, excluding the
// ticks.
_CopySpan(text, start, offset);
if (tickCount == 2)
_ToggleStyle(fItalicStyle);
else if (tickCount == 3)
_ToggleStyle(fBoldStyle);
// Don't include the ticks in the next span.
offset += tickCount - 1;
start = offset + 1;
c += tickCount - 1;
}
break;
case '=':
// Detect headings
if (offset == start
&& fCurrentParagraph.IsEmpty()
&& offset + 2 < charCount
&& c[0] == '=' && c[1] == ' ') {
fCurrentParagraph.SetStyle(fHeadingParagraphStyle);
fCurrentCharacterStyle = &fHeadingStyle;
offset += 2;
c += 2;
start = offset + 1;
} else if (offset > start
&& offset + 2 < charCount
&& c[0] == '=' && c[1] == '\n') {
_CopySpan(text, start, offset - 1);
_FinishParagraph();
offset += 2;
c += 2;
start = offset + 1;
}
break;
case ' ':
// Detect bullets at line starts
if (offset == start
&& fCurrentParagraph.IsEmpty()
&& offset + 2 < charCount
&& c[0] == '*' && c[1] == ' ') {
fCurrentParagraph.SetStyle(fBulletStyle);
offset += 2;
c += 2;
start = offset + 1;
}
break;
default:
break;
}
offset++;
}
}
void
MarkupParser::_ParseText(const BString& text)
{
int32 start = 0;
int32 offset = 0;
int32 charCount = text.CountChars();
const char* c = text.String();
while (offset <= charCount) {
uint32 nextChar = UTF8ToCharCode(&c);
switch (nextChar) {
// Requires two line-breaks to start a new paragraph, unles the current
// paragraph is already considered a bullet list item. Doesn't work well
// with current set of packages.
// case '\n':
// _CopySpan(text, start, offset);
// if (offset + 1 < charCount && c[0] == '\n') {
// _FinishParagraph();
// offset += 1;
// c += 1;
// } else if (fCurrentParagraph.Style() == fBulletStyle) {
// _FinishParagraph();
// }
// start = offset + 1;
// break;
case '\n':
_CopySpan(text, start, offset);
if (offset > 0 && c[-1] != ' ')
_FinishParagraph(offset >= charCount);
start = offset + 1;
break;
case '\0':
_CopySpan(text, start, offset);
_FinishParagraph(true);
start = offset + 1;
break;
case '\'':
if (offset + 2 < charCount && c[0] == '\'') {
int32 tickCount = 2;
if (c[1] == '\'')
tickCount = 3;
// Copy previous span using current style, excluding the
// ticks.
_CopySpan(text, start, offset);
if (tickCount == 2)
_ToggleStyle(fItalicStyle);
else if (tickCount == 3)
_ToggleStyle(fBoldStyle);
// Don't include the ticks in the next span.
offset += tickCount - 1;
start = offset + 1;
c += tickCount - 1;
}
break;
case '=':
// Detect headings
if (offset == start
&& fCurrentParagraph.IsEmpty()
&& offset + 2 < charCount
&& c[0] == '=' && c[1] == ' ') {
fCurrentParagraph.SetStyle(fHeadingParagraphStyle);
fCurrentCharacterStyle = &fHeadingStyle;
offset += 2;
c += 2;
start = offset + 1;
} else if (offset > start
&& offset + 2 < charCount
&& c[0] == '=' && c[1] == '\n') {
_CopySpan(text, start, offset - 1);
offset += 2;
c += 2;
_FinishParagraph(offset >= charCount);
start = offset + 1;
}
break;
case ' ':
// Detect bullets at line starts (preceeding space)
if (offset == start
&& fCurrentParagraph.IsEmpty()
&& offset + 2 < charCount
&& (c[0] == '*' || c[0] == '-') && c[1] == ' ') {
fCurrentParagraph.SetStyle(fBulletStyle);
offset += 2;
c += 2;
start = offset + 1;
}
break;
case '*':
case '-':
// Detect bullets at line starts (no preceeding space)
if (offset == start
&& fCurrentParagraph.IsEmpty()
&& offset + 1 < charCount
&& c[0] == ' ') {
fCurrentParagraph.SetStyle(fBulletStyle);
offset += 1;
c += 1;
start = offset + 1;
}
break;
default:
break;
}
offset++;
}
}
