add GetFileName api to SkFontHost

git-svn-id: http://skia.googlecode.com/svn/trunk@299 2bbb7eff-a529-9590-31e7-b0007b416f81

5 files changed, 65 insertions, 0 deletions

diff --git a/src/ports/SkFontHost_FONTPATH.cpp b/src/ports/SkFontHost_FONTPATH.cpp
index ceab395315..211ed90f66 100644
--- a/src/ports/SkFontHost_FONTPATH.cpp
+++ b/src/ports/SkFontHost_FONTPATH.cpp
@@ -287,6 +287,12 @@ SkStream* SkFontHost::OpenStream(uint32_t fontID) {
     return NULL;
 }
 
+size_t SkFontHost::GetFileName(SkFontID fontID, char path[], size_t length,
+                               int32_t* index) {
+    SkDebugf("SkFontHost::GetFileName unimplemented\n");
+    return 0;
+}
+
 void SkFontHost::Serialize(const SkTypeface* tface, SkWStream* stream) {
     const FontFaceRec* face = &((const FontFaceRec_Typeface*)tface)->fFace;
     stream->write(face, sizeof(face));
diff --git a/src/ports/SkFontHost_android.cpp b/src/ports/SkFontHost_android.cpp
index e6d134a583..6aa7a0b41f 100644
--- a/src/ports/SkFontHost_android.cpp
+++ b/src/ports/SkFontHost_android.cpp
@@ -267,6 +267,7 @@ public:
     
     virtual SkStream* openStream() = 0;
     virtual const char* getUniqueString() const = 0;
+    virtual const char* getFilePath() const = 0;
     
 private:
     bool    fIsSysFont;
@@ -297,6 +298,7 @@ public:
         return fStream;
     }
     virtual const char* getUniqueString() const { return NULL; }
+    virtual const char* getFilePath() const { return NULL; }
 
 private:
     SkStream* fStream;
@@ -341,6 +343,9 @@ public:
         }
         return str;
     }
+    virtual const char* getFilePath() const {
+        return fPath.c_str();
+    }
 
 private:
     SkString fPath;
@@ -592,6 +597,27 @@ SkStream* SkFontHost::OpenStream(uint32_t fontID) {
     return stream;
 }
 
+size_t SkFontHost::GetFileName(SkFontID fontID, char path[], size_t length,
+                               int32_t* index) {
+    SkAutoMutexAcquire  ac(gFamilyMutex);
+
+    FamilyTypeface* tf = (FamilyTypeface*)find_from_uniqueID(fontID);
+    const char* src = tf ? tf->getFilePath() : NULL;
+
+    if (src) {
+        size_t size = strlen(src);
+        if (path) {
+            memcpy(path, src, SkMin32(size, length));
+        }
+        if (index) {
+            *index = 0; // we don't have collections (yet)
+        }
+        return size;
+    } else {
+        return 0;
+    }
+}
+
 uint32_t SkFontHost::NextLogicalFont(uint32_t fontID) {
     load_system_fonts();
 
diff --git a/src/ports/SkFontHost_fontconfig.cpp b/src/ports/SkFontHost_fontconfig.cpp
index bf94366f5f..83a75ce74d 100644
--- a/src/ports/SkFontHost_fontconfig.cpp
+++ b/src/ports/SkFontHost_fontconfig.cpp
@@ -333,6 +333,27 @@ SkStream* SkFontHost::OpenStream(uint32_t id)
     return SkNEW_ARGS(SkFILEStream, (i->second.c_str()));
 }
 
+size_t SkFontHost::GetFileName(SkFontID fontID, char path[], size_t length,
+                               int32_t* index) {
+    SkAutoMutexAcquire ac(global_fc_map_lock);
+    const unsigned fileid = UniqueIdToFileId(id);
+    
+    std::map<unsigned, std::string>::const_iterator i =
+    global_fc_map_inverted.find(fileid);
+    if (i == global_fc_map_inverted.end()) {
+        return 0;
+    }
+
+    const std::string& str = i->second;
+    if (path) {
+        memcpy(path, str.c_str(), SkMin32(str.size(), length));
+    }
+    if (index) {    // TODO: check if we're in a TTC
+        *index = 0;
+    }
+    return str.size();
+}
+
 void SkFontHost::Serialize(const SkTypeface*, SkWStream*) {
     SkASSERT(!"SkFontHost::Serialize unimplemented");
 }
diff --git a/src/ports/SkFontHost_linux.cpp b/src/ports/SkFontHost_linux.cpp
index 743daa5bf2..8627106023 100644
--- a/src/ports/SkFontHost_linux.cpp
+++ b/src/ports/SkFontHost_linux.cpp
@@ -539,6 +539,12 @@ SkStream* SkFontHost::OpenStream(uint32_t fontID) {
     return stream;
 }
 
+size_t SkFontHost::GetFileName(SkFontID fontID, char path[], size_t length,
+                               int32_t* index) {
+    SkDebugf("SkFontHost::GetFileName unimplemented\n");
+    return 0;
+}
+
 void SkFontHost::CloseStream(uint32_t fontID, SkStream* stream) {
     FamilyTypeface* tf = (FamilyTypeface*)SkFontHost::ResolveTypeface(fontID);
     if (NULL != tf) {
diff --git a/src/ports/SkFontHost_none.cpp b/src/ports/SkFontHost_none.cpp
index 471ffd825f..2b88695289 100644
--- a/src/ports/SkFontHost_none.cpp
+++ b/src/ports/SkFontHost_none.cpp
@@ -44,6 +44,12 @@ SkStream* SkFontHost::OpenStream(uint32_t uniqueID) {
     return NULL;
 }
 
+size_t SkFontHost::GetFileName(SkFontID fontID, char path[], size_t length,
+                               int32_t* index) {
+    SkDebugf("SkFontHost::GetFileName unimplemented\n");
+    return 0;
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 void SkFontHost::Serialize(const SkTypeface* face, SkWStream* stream) {