Add BigRectGM.

gm/bigrect.cpp

+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "gm.h"
+
+DEF_SIMPLE_GM(bigrect, canvas, 35, 35) {
+    static const SkScalar kBig = SkFloatToScalar(5e10f);
+
+    SkPaint outlinePaint;
+    outlinePaint.setColor(SK_ColorBLUE);
+    outlinePaint.setStyle(SkPaint::kStroke_Style);
+    outlinePaint.setStrokeWidth(0);
+
+    SkPaint outOfBoundsPaint;
+    outOfBoundsPaint.setColor(SK_ColorRED);
+    outOfBoundsPaint.setStyle(SkPaint::kStroke_Style);
+    outOfBoundsPaint.setStrokeWidth(0);
+
+    // Looks like this:
+    // +-+-+--+-+------+
+    // | | |  | |  +---+
+    // | +-+  | |  +---+
+    // |      | |      |
+    // +------+-+------+
+    // +------+-+------+
+    // |      | |      |
+    // +---+  | |  +-+ |
+    // +---+  | |  | | |
+    // +------+-+--+-+-+
+
+    SkRect tl = SkRect::MakeLTRB(SkIntToScalar(5),
+                                 -kBig,
+                                 SkIntToScalar(10),
+                                 SkIntToScalar(10));
+    canvas->drawRect(tl, outlinePaint);
+
+    SkRect tr = SkRect::MakeLTRB(SkIntToScalar(25),
+                                 SkIntToScalar(5),
+                                 kBig,
+                                 SkIntToScalar(10));
+    canvas->drawRect(tr, outlinePaint);
+
+    SkRect br = SkRect::MakeLTRB(SkIntToScalar(25),
+                                 SkIntToScalar(25),
+                                 SkIntToScalar(30),
+                                 kBig);
+    canvas->drawRect(br, outlinePaint);
+
+    SkRect bl = SkRect::MakeLTRB(-kBig,
+                                 SkIntToScalar(25),
+                                 SkIntToScalar(10),
+                                 SkIntToScalar(30));
+    canvas->drawRect(bl, outlinePaint);
+
+    SkRect horiz = SkRect::MakeLTRB(-kBig,
+                                    SkIntToScalar(15),
+                                    kBig,
+                                    SkIntToScalar(20));
+    canvas->drawRect(horiz, outlinePaint);
+
+    SkRect vert = SkRect::MakeLTRB(SkIntToScalar(15),
+                                   -kBig,
+                                   SkIntToScalar(20),
+                                   kBig);
+    canvas->drawRect(vert, outlinePaint);
+
+    SkRect leftBorder = SkRect::MakeLTRB(-2, -1, 0, 35);
+    canvas->drawRect(leftBorder, outlinePaint);
+
+    SkRect topBorder = SkRect::MakeLTRB(-1, -2, 35, 0);
+    canvas->drawRect(topBorder, outlinePaint);
+
+    SkRect rightBorder = SkRect::MakeLTRB(34, -1, 36, 35);
+    canvas->drawRect(rightBorder, outlinePaint);
+
+    SkRect bottomBorder = SkRect::MakeLTRB(-1, 34, 35, 36);
+    canvas->drawRect(bottomBorder, outlinePaint);
+
+    SkRect outOfBounds = SkRect::MakeLTRB(-1, -1, 35, 35);
+    canvas->drawRect(outOfBounds, outOfBoundsPaint);
+}