skia2/gm/thinstrokedrects.cpp
Herb Derby c37b386886 Replace SK_ARRAY_COUNT with std::size() for skia/gm
Note: in variedtext.cpp:66 changed static_assert to SkASSERT.

Change-Id: I853a2e5563c90c9dde5d6ba5443cc73b664b493d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/551876
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
2022-06-21 18:09:30 +00:00

86 lines
2.3 KiB
C++

/*
* Copyright 2013 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/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTypes.h"
namespace skiagm {
// Draw rects with various stroke widths at 1/8 pixel increments
class ThinStrokedRectsGM : public GM {
public:
ThinStrokedRectsGM() {
this->setBGColor(0xFF000000);
}
protected:
SkString onShortName() override {
return SkString("thinstrokedrects");
}
SkISize onISize() override {
return SkISize::Make(240, 320);
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
paint.setColor(SK_ColorWHITE);
paint.setStyle(SkPaint::kStroke_Style);
paint.setAntiAlias(true);
constexpr SkRect rect = { 0, 0, 10, 10 };
constexpr SkRect rect2 = { 0, 0, 20, 20 };
constexpr SkScalar gStrokeWidths[] = {
4, 2, 1, 0.5f, 0.25f, 0.125f, 0
};
canvas->translate(5, 5);
for (int i = 0; i < 8; ++i) {
canvas->save();
canvas->translate(i*0.125f, i*30.0f);
for (size_t j = 0; j < std::size(gStrokeWidths); ++j) {
paint.setStrokeWidth(gStrokeWidths[j]);
canvas->drawRect(rect, paint);
canvas->translate(15, 0);
}
canvas->restore();
}
// Draw a second time in red with a scale
paint.setColor(SK_ColorRED);
canvas->translate(0, 15);
for (int i = 0; i < 8; ++i) {
canvas->save();
canvas->translate(i*0.125f, i*30.0f);
canvas->scale(0.5f, 0.5f);
for (size_t j = 0; j < std::size(gStrokeWidths); ++j) {
paint.setStrokeWidth(2.0f * gStrokeWidths[j]);
canvas->drawRect(rect2, paint);
canvas->translate(30, 0);
}
canvas->restore();
}
}
private:
using INHERITED = GM;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM(return new ThinStrokedRectsGM;)
} // namespace skiagm