SkTextBlob

samplecode/SampleText.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
 #include "SkPath.h"
 #include "SkRandom.h"
 #include "SkRegion.h"
 #include "SkShader.h"
 #include "SkUtils.h"
 #include "SkColorPriv.h"
 #include "SkColorFilter.h"
+#include "SkTextBlob.h"
 #include "SkTime.h"
 #include "SkTypeface.h"
 #include "SkXfermode.h"
 
 #include "SkStream.h"
 #include "SkXMLParser.h"
 
 static void test_breakText() {
     SkPaint paint;
     const char* text = "sdfkljAKLDFJKEWkldfjlk#$%&sdfs.dsj";
@@ skipping 37 matching lines @@
 } gHints[] = {
     { "Linear", SkPaint::kLinearText_Flag,     false },
     { "Normal",   0,                           true },
     { "Subpixel", SkPaint::kSubpixelText_Flag, true }
 };
 
 static void DrawTheText(SkCanvas* canvas, const char text[], size_t length, SkScalar x, SkScalar y,
                         const SkPaint& paint, SkScalar clickX) {
     SkPaint p(paint);
 
+    uint16_t glyphs[1000];
+    SkASSERT(length <= SK_ARRAY_COUNT(glyphs));
+    int glyphCount = paint.textToGlyphs(text, length, glyphs);
+    SkPaint glyphPaint = paint;
+    glyphPaint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
+    SkTextBlobBuilder blobBuilder;
+
 #if 0
     canvas->drawText(text, length, x, y, paint);
 #else
     {
         SkPoint pts[1000];
         SkScalar xpos = x;
         SkASSERT(length <= SK_ARRAY_COUNT(pts));
         for (size_t i = 0; i < length; i++) {
             pts[i].set(xpos, y), xpos += paint.getTextSize();
         }
         canvas->drawPosText(text, length, pts, paint);
+
+        SkAutoTUnref<const SkTextBlob> blob(SkTextBlob::Create(
+                                      SkTextChunk::Create(glyphs, glyphCount, pts, glyphPaint)));
+        canvas->drawTextBlob(blob, SkPoint::Make(0, 400), glyphPaint);
+
     }
 #endif
 
     p.setSubpixelText(true);
     x += SkIntToScalar(180);
     canvas->drawText(text, length, x, y, p);
 
+    {
+        glyphPaint.setSubpixelText(true);
+        SkAutoTUnref<const SkTextBlob> blob(SkTextBlob::Create(
+                                  SkTextChunk::Create(glyphs, glyphCount, glyphPaint)));
+        canvas->drawTextBlob(blob, SkPoint::Make(x, y + 400), glyphPaint);
+    }
+
 #ifdef SK_DEBUG
     if (true) {
         p.setSubpixelText(false);
         p.setLinearText(true);
         x += SkIntToScalar(180);
         canvas->drawText(text, length, x, y, p);
     }
 #endif
 }
 
@@ skipping 93 matching lines @@
     int fHints;
     SkScalar fClickX;
 
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new TextSpeedView; }
 static SkViewRegister reg(MyFactory);