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/lightingshader2.cpp b/gm/lightingshader2.cpp
index c6c246d353..edec063dd1 100644
--- a/gm/lightingshader2.cpp
+++ b/gm/lightingshader2.cpp
@@ -171,25 +171,25 @@ protected:
                             canvas->translate(0.0f, LABEL_SIZE);
                             SkString label;
                             label.appendf("useNormalSource: %d", useNormalSource);
-                            canvas->drawText(label.c_str(), label.size(), 0.0f, 0.0f, labelPaint);
+                            canvas->drawString(label, 0.0f, 0.0f, labelPaint);
                         }
                         {
                             canvas->translate(0.0f, LABEL_SIZE);
                             SkString label;
                             label.appendf("useDiffuseShader: %d", useDiffuseShader);
-                            canvas->drawText(label.c_str(), label.size(), 0.0f, 0.0f, labelPaint);
+                            canvas->drawString(label, 0.0f, 0.0f, labelPaint);
                         }
                         {
                             canvas->translate(0.0f, LABEL_SIZE);
                             SkString label;
                             label.appendf("useTranslucentPaint: %d", useTranslucentPaint);
-                            canvas->drawText(label.c_str(), label.size(), 0.0f, 0.0f, labelPaint);
+                            canvas->drawString(label, 0.0f, 0.0f, labelPaint);
                         }
                         {
                             canvas->translate(0.0f, LABEL_SIZE);
                             SkString label;
                             label.appendf("useTranslucentShader: %d", useTranslucentShader);
-                            canvas->drawText(label.c_str(), label.size(), 0.0f, 0.0f, labelPaint);
+                            canvas->drawString(label, 0.0f, 0.0f, labelPaint);
                         }
 
                         canvas->restore();