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-rw-r--r--include/core/SkTypeface.h10
-rw-r--r--src/core/SkTypeface.cpp8
2 files changed, 18 insertions, 0 deletions
diff --git a/include/core/SkTypeface.h b/include/core/SkTypeface.h
index 665491c3db..4118152dea 100644
--- a/include/core/SkTypeface.h
+++ b/include/core/SkTypeface.h
@@ -117,6 +117,14 @@ public:
*/
static sk_sp<SkTypeface> MakeFromFontData(std::unique_ptr<SkFontData>);
+ /** Return a new typeface based on this typeface but parameterized as specified in the
+ SkFontArguments. If the SkFontArguments does not supply an argument for a parameter
+ in the font then the value from this typeface will be used as the value for that
+ argument. If the cloned typeface would be exaclty the same as this typeface then
+ this typeface may be ref'ed and returned. May return nullptr on failure.
+ */
+ sk_sp<SkTypeface> makeClone(const SkFontArguments&) const;
+
/** Write a unique signature to a stream, sufficient to reconstruct a
typeface referencing the same font when Deserialize is called.
*/
@@ -301,6 +309,8 @@ protected:
SkTypeface(const SkFontStyle& style, bool isFixedPitch = false);
virtual ~SkTypeface();
+ virtual sk_sp<SkTypeface> onMakeClone(const SkFontArguments&) const;
+
/** Sets the fixedPitch bit. If used, must be called in the constructor. */
void setIsFixedPitch(bool isFixedPitch) { fIsFixedPitch = isFixedPitch; }
/** Sets the font style. If used, must be called in the constructor. */
diff --git a/src/core/SkTypeface.cpp b/src/core/SkTypeface.cpp
index 92c8c09e33..a59075b908 100644
--- a/src/core/SkTypeface.cpp
+++ b/src/core/SkTypeface.cpp
@@ -161,6 +161,10 @@ sk_sp<SkTypeface> SkTypeface::MakeFromFile(const char path[], int index) {
return fm->makeFromFile(path, index);
}
+sk_sp<SkTypeface> SkTypeface::makeClone(const SkFontArguments& args) const {
+ return this->onMakeClone(args);
+}
+
///////////////////////////////////////////////////////////////////////////////
void SkTypeface::serialize(SkWStream* wstream) const {
@@ -321,6 +325,10 @@ bool SkTypeface::onGetKerningPairAdjustments(const uint16_t glyphs[], int count,
return false;
}
+sk_sp<SkTypeface> SkTypeface::onMakeClone(const SkFontArguments& args) const {
+ return sk_ref_sp(this);
+}
+
///////////////////////////////////////////////////////////////////////////////
#include "SkDescriptor.h"