add drawString helper to canvas

Many tests and examples use drawText with
a guess of how long the text is in bytes,
or a call to strlen(). Add a helper to
SkCanvas to simplify these examples.

Add another helper for SkString.

R=reed@google.com

Change-Id: I0204a31e938f065606f08ee7cd9a6b36db791ee2
Reviewed-on: https://skia-review.googlesource.com/13642
Commit-Queue: Cary Clark <caryclark@google.com>
Reviewed-by: Cary Clark <caryclark@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Cary Clark <caryclark@skia.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/gm/coloremoji.cpp b/gm/coloremoji.cpp
index f871e53d55..7626f9a071 100644
--- a/gm/coloremoji.cpp
+++ b/gm/coloremoji.cpp
@@ -88,7 +88,7 @@ protected:
             paint.setTextSize(textSize);
             paint.getFontMetrics(&metrics);
             y += -metrics.fAscent;
-            canvas->drawText(text, strlen(text), 10, y, paint);
+            canvas->drawString(text, 10, y, paint);
             y += metrics.fDescent + metrics.fLeading;
         }
 
@@ -124,7 +124,7 @@ protected:
                             shaderPaint.setTextSize(30);
                             shaderPaint.getFontMetrics(&metrics);
                             y += -metrics.fAscent;
-                            canvas->drawText(text, strlen(text), 380, y, shaderPaint);
+                            canvas->drawString(text, 380, y, shaderPaint);
                             y += metrics.fDescent + metrics.fLeading;
                         }
                     }
@@ -162,10 +162,10 @@ protected:
             canvas->save();
             canvas->drawRect(clipRect, clipHairline);
             paint.setAlpha(0x20);
-            canvas->drawText(text, strlen(text), 0, 0, paint);
+            canvas->drawString(text, 0, 0, paint);
             canvas->clipRect(clipRect);
             paint.setAlpha(0xFF);
-            canvas->drawText(text, strlen(text), 0, 0, paint);
+            canvas->drawString(text, 0, 0, paint);
             canvas->restore();
             canvas->translate(0, SkIntToScalar(25));
         }