commit 7775d66aa0e5958c9ea55ddb8317af4d9b019220
author reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> Tue Nov 27 15:15:58 2012 +0000
committer reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81> Tue Nov 27 15:15:58 2012 +0000
tree 0a07d43409410a34ca808470974a74d59a50a9bd
parent 631940c8c44e92939fc95d305b87be64eb9b886e

add onOnceBeforeDraw() virtual, so gm's can easily perform lazy initialization



git-svn-id: http://skia.googlecode.com/svn/trunk@6559 2bbb7eff-a529-9590-31e7-b0007b416f81

gm/gm.cpp

diff --git a/gm/gm.cpp b/gm/gm.cpp
index 1ccec9f..c1e75e9 100644
--- a/gm/gm.cpp
+++ b/gm/gm.cpp
@@ -13,6 +13,7 @@
 GM::GM() {
     fBGColor = SK_ColorWHITE;
     fCanvasIsDeferred = false;
+    fHaveCalledOnceBeforeDraw = false;
 }
 GM::~GM() {}
 
@@ -22,10 +23,18 @@
 }
 
 void GM::drawContent(SkCanvas* canvas) {
+    if (!fHaveCalledOnceBeforeDraw) {
+        fHaveCalledOnceBeforeDraw = true;
+        this->onOnceBeforeDraw();
+    }
     this->onDraw(canvas);
 }
 
 void GM::drawBackground(SkCanvas* canvas) {
+    if (!fHaveCalledOnceBeforeDraw) {
+        fHaveCalledOnceBeforeDraw = true;
+        this->onOnceBeforeDraw();
+    }
     this->onDrawBackground(canvas);
 }