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first try at implementing ServerFont::GetBoundingBoxesAsString

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@14075 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Jérôme Duval
2005-08-26 15:02:53 +00:00
parent 492b2e2933
commit c0058faecc
1 changed files with 40 additions and 1 deletions
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src/servers/app/ServerFont.cpp
+40 -1
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@@ -536,13 +536,47 @@ ServerFont::GetBoundingBoxesAsString(const char charArray[], int32 numChars, BRe
return false; return false;
FT_Set_Char_Size(face, 0, int32(fSize * 64), 72, 72); FT_Set_Char_Size(face, 0, int32(fSize * 64), 72, 72);
// UTF8 handling...this can probably be smarter
// Here is what I do in the AGGTextRenderer to handle UTF8...
// It is probably highly inefficient, so it should be reviewed.
int32 numBytes = UTF8CountBytes(charArray, numChars);
int32 convertedLength = numBytes * 2;
char* convertedBuffer = new char[convertedLength];
int32 state = 0;
status_t ret;
if ((ret = convert_from_utf8(B_UNICODE_CONVERSION,
charArray, &numBytes,
convertedBuffer, &convertedLength,
&state, B_SUBSTITUTE)) >= B_OK
&& (ret = swap_data(B_INT16_TYPE, convertedBuffer, convertedLength,
B_SWAP_BENDIAN_TO_HOST)) >= B_OK) {
uint16* glyphIndex = (uint16*)convertedBuffer;
// just to be sure
numChars = min_c((uint32)numChars, convertedLength / sizeof(uint16));
for (int i = 0; i < numChars; i++) {
FT_Load_Char(face, glyphIndex[i], FT_LOAD_NO_BITMAP);
if (face->glyph) {
rectArray[i].left = float(face->glyph->metrics.horiBearingX) /64.0;
rectArray[i].right = float(face->glyph->metrics.horiBearingX
+ face->glyph->metrics.width)/64.0;
rectArray[i].top = -float(face->glyph->metrics.horiBearingY) /64.0;
rectArray[i].bottom = float(face->glyph->metrics.height
- face->glyph->metrics.horiBearingY) /64.0;
}
}
}
delete[] convertedBuffer;
return true; return true;
} }
bool bool
ServerFont::GetBoundingBoxesAsStrings(char *charArray[], int32 lengthArray[], ServerFont::GetBoundingBoxesForStrings(char *charArray[], int32 lengthArray[],
int32 numStrings, BRect rectArray[], font_metric_mode mode, escapement_delta deltaArray[]) int32 numStrings, BRect rectArray[], font_metric_mode mode, escapement_delta deltaArray[])
{ {
if (!fStyle || !charArray || !lengthArray|| numStrings <= 0 || !rectArray || !deltaArray) if (!fStyle || !charArray || !lengthArray|| numStrings <= 0 || !rectArray || !deltaArray)
@@ -554,6 +588,11 @@ ServerFont::GetBoundingBoxesAsStrings(char *charArray[], int32 lengthArray[],
FT_Set_Char_Size(face, 0, int32(fSize * 64), 72, 72); FT_Set_Char_Size(face, 0, int32(fSize * 64), 72, 72);
for (int32 i=0; i<numStrings; i++) {
}
return true; return true;
} }