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authorGravatar reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>2014-02-24 19:38:20 +0000
committerGravatar reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>2014-02-24 19:38:20 +0000
commit754de5f65b466f721d952a379194cc94de376f42 (patch)
tree957283b1b7ebd32bab0b8c5a943942aa39a5360f /include
parent5cc25359c62c83c356c3a30572a05ac9647daa55 (diff)
add isClipEmpty() -- encourage clients to call this rather than checking clipFoo() results
BUG=skia: R=robertphillips@google.com Review URL: https://codereview.chromium.org/177073006 git-svn-id: http://skia.googlecode.com/svn/trunk@13568 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'include')
-rw-r--r--include/core/SkCanvas.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/core/SkCanvas.h b/include/core/SkCanvas.h
index 754fd167a3..e639212e38 100644
--- a/include/core/SkCanvas.h
+++ b/include/core/SkCanvas.h
@@ -972,6 +972,15 @@ public:
//////////////////////////////////////////////////////////////////////////
+ /**
+ * Return true if the current clip is empty (i.e. nothing will draw).
+ * Note: this is not always a free call, so it should not be used
+ * more often than necessary. However, once the canvas has computed this
+ * result, subsequent calls will be cheap (until the clip state changes,
+ * which can happen on any clip..() or restore() call.
+ */
+ bool isClipEmpty() const;
+
/** Return the current matrix on the canvas.
This does not account for the translate in any of the devices.
@return The current matrix on the canvas.