skia2/gm/stroke_rect_shader.cpp
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

62 lines
2.0 KiB
C++

/*
* 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/gm.h"
#include "include/effects/SkGradientShader.h"
namespace skiagm {
// Draw stroked rects (both AA and nonAA) with all the types of joins:
// bevel, miter, miter-limited-to-bevel, round
// and as a hairline.
DEF_SIMPLE_GM(stroke_rect_shader, canvas, 690, 300) {
constexpr SkRect kRect {0, 0, 100, 100};
constexpr SkPoint kPts[] {{kRect.fLeft, kRect.fTop}, {kRect.fRight, kRect.fBottom}};
constexpr SkColor kColors[] {SK_ColorRED, SK_ColorBLUE};
SkPaint paint;
sk_sp<SkShader> shader = SkGradientShader::MakeLinear(kPts, kColors, nullptr, 2,
SkTileMode::kClamp);
paint.setShader(std::move(shader));
paint.setStyle(SkPaint::kStroke_Style);
// Do a large initial translate so that local coords disagree with device coords significantly
// for the first rect drawn.
canvas->translate(kRect.centerX(), kRect.centerY());
constexpr SkScalar kPad = 20;
for (auto aa : {false, true}) {
paint.setAntiAlias(aa);
canvas->save();
constexpr SkScalar kStrokeWidth = 10;
paint.setStrokeWidth(kStrokeWidth);
paint.setStrokeJoin(SkPaint::kBevel_Join);
canvas->drawRect(kRect, paint);
canvas->translate(kRect.width() + kPad, 0);
paint.setStrokeJoin(SkPaint::kMiter_Join);
canvas->drawRect(kRect, paint);
canvas->translate(kRect.width() + kPad, 0);
// This miter limit should effectively produce a bevel join.
paint.setStrokeMiter(0.01f);
canvas->drawRect(kRect, paint);
canvas->translate(kRect.width() + kPad, 0);
paint.setStrokeJoin(SkPaint::kRound_Join);
canvas->drawRect(kRect, paint);
canvas->translate(kRect.width() + kPad, 0);
paint.setStrokeWidth(0);
canvas->drawRect(kRect, paint);
canvas->restore();
canvas->translate(0, kRect.height() + kPad);
}
}
}