Bug 755869 - [4] Re-apply bug 687189 - Implement SkPaint::getPosTextPath r=mattwoodrow

This commit is contained in:
George Wright 2012-05-18 14:10:44 -04:00
parent 4d320037ae
commit 8dab82b9bf
2 changed files with 30 additions and 0 deletions

View File

@ -813,6 +813,9 @@ public:
void getTextPath(const void* text, size_t length, SkScalar x, SkScalar y,
SkPath* path) const;
void getPosTextPath(const void* text, size_t length,
const SkPoint pos[], SkPath* path) const;
#ifdef SK_BUILD_FOR_ANDROID
const SkGlyph& getUnicharMetrics(SkUnichar);
const SkGlyph& getGlyphMetrics(uint16_t);

View File

@ -1355,6 +1355,33 @@ void SkPaint::getTextPath(const void* textData, size_t length,
}
}
void SkPaint::getPosTextPath(const void* textData, size_t length,
const SkPoint pos[], SkPath* path) const {
SkASSERT(length == 0 || textData != NULL);
const char* text = (const char*)textData;
if (text == NULL || length == 0 || path == NULL) {
return;
}
SkTextToPathIter iter(text, length, *this, false);
SkMatrix matrix;
SkPoint prevPos;
prevPos.set(0, 0);
matrix.setScale(iter.getPathScale(), iter.getPathScale());
path->reset();
unsigned int i = 0;
const SkPath* iterPath;
while ((iterPath = iter.next(NULL)) != NULL) {
matrix.postTranslate(pos[i].fX - prevPos.fX, pos[i].fY - prevPos.fY);
path->addPath(*iterPath, matrix);
prevPos = pos[i];
i++;
}
}
static void add_flattenable(SkDescriptor* desc, uint32_t tag,
SkFlattenableWriteBuffer* buffer) {
buffer->flatten(desc->addEntry(tag, buffer->size(), NULL));