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From 27a914815e757ed12523edf968c9da134dabeaf8 Mon Sep 17 00:00:00 2001
From: George Wright <gwright@mozilla.com>
Date: Fri, 18 May 2012 14:10:44 -0400
Subject: [PATCH 01/10]     Bug 755869 - [4] Re-apply bug 687189 - Implement
 SkPaint::getPosTextPath r=mattwoodrow

---
 gfx/skia/include/core/SkPaint.h |    3 +++
 gfx/skia/src/core/SkPaint.cpp   |   27 +++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 0 deletions(-)

diff --git a/gfx/skia/include/core/SkPaint.h b/gfx/skia/include/core/SkPaint.h
index 1930db1..ff37d77 100644
--- a/gfx/skia/include/core/SkPaint.h
+++ b/gfx/skia/include/core/SkPaint.h
@@ -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);
diff --git a/gfx/skia/src/core/SkPaint.cpp b/gfx/skia/src/core/SkPaint.cpp
index 1b74fa1..4c119aa 100644
--- a/gfx/skia/src/core/SkPaint.cpp
+++ b/gfx/skia/src/core/SkPaint.cpp
@@ -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));
-- 
1.7.5.4