Move a bit more logic into GrAtlasTextBlob

src/gpu/text/GrAtlasTextBlob.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrAtlasTextBlob_DEFINED
 #define GrAtlasTextBlob_DEFINED
 
@@ skipping 272 matching lines @@
 
     void push_back_run(int currRun) {
         SkASSERT(currRun < fRunCount);
         if (currRun > 0) {
             Run::SubRunInfo& newRun = fRuns[currRun].fSubRunInfo.back();
             Run::SubRunInfo& lastRun = fRuns[currRun - 1].fSubRunInfo.back();
             newRun.setAsSuccessor(lastRun);
         }
     }
 
+    // sets the last subrun to use distance field text

[bsalomon, 2015/12/15 19:43:49]

says last but takes an index?

[joshualitt, 2015/12/15 19:49:28]

Comment updated.  I think my ultimate goal is to have the blob itself track the
current run, and make the whole notion of runs / subruns basically opaque to the
user of the blob.  We'll see though

+    void setSubRunHasDistanceFields(int runIndex, bool hasLCD) {
+        Run& run = fRuns[runIndex];
+        Run::SubRunInfo& subRun = run.fSubRunInfo.back();
+        subRun.setUseLCDText(hasLCD);
+        subRun.setDrawAsDistanceFields();
+    }
+
     SkGlyphCache* setupCache(int runIndex,
                              const SkSurfaceProps& props,
                              const SkPaint& skPaint,
                              const SkMatrix* viewMatrix,
                              bool noGamma);
 
     // Appends a glyph to the blob.  If the glyph is too large, the glyph will be appended
     // as a path.
     void appendGlyph(int runIndex,
                      const SkRect& positions,
@@ skipping 82 matching lines @@
     void flushRunAsPaths(GrContext* context,
                          GrDrawContext* dc,
                          const SkSurfaceProps& props,
                          const SkTextBlobRunIterator& it,
                          const GrClip& clip, const SkPaint& skPaint,
                          SkDrawFilter* drawFilter, const SkMatrix& viewMatrix,
                          const SkIRect& clipBounds, SkScalar x, SkScalar y);
 };
 
 #endif