c53b82ec0e
In service of the bug below, revise the gm to show what zero widths draw, and what they should draw (by including rects with fractionally tiny widths). TBR=halcanary@google.com,reed@google.com BUG=1294 GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1548643002 Review URL: https://codereview.chromium.org/1548643002
117 lines
3.4 KiB
C++
117 lines
3.4 KiB
C++
/*
|
|
* Copyright 2012 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"
|
|
#include "SkCanvas.h"
|
|
#include "SkPath.h"
|
|
|
|
#define STROKE_WIDTH SkIntToScalar(20)
|
|
|
|
static void draw_path(SkCanvas* canvas, const SkPath& path, const SkRect& rect,
|
|
SkPaint::Join join, int doFill) {
|
|
SkPaint paint;
|
|
paint.setAntiAlias(true);
|
|
paint.setStyle(doFill ? SkPaint::kStrokeAndFill_Style : SkPaint::kStroke_Style);
|
|
|
|
paint.setColor(sk_tool_utils::color_to_565(SK_ColorGRAY));
|
|
paint.setStrokeWidth(STROKE_WIDTH);
|
|
paint.setStrokeJoin(join);
|
|
canvas->drawRect(rect, paint);
|
|
|
|
paint.setStyle(SkPaint::kStroke_Style);
|
|
paint.setStrokeWidth(0);
|
|
paint.setColor(SK_ColorRED);
|
|
canvas->drawPath(path, paint);
|
|
|
|
paint.setStrokeWidth(3);
|
|
paint.setStrokeJoin(SkPaint::kMiter_Join);
|
|
int n = path.countPoints();
|
|
SkAutoTArray<SkPoint> points(n);
|
|
path.getPoints(points.get(), n);
|
|
canvas->drawPoints(SkCanvas::kPoints_PointMode, n, points.get(), paint);
|
|
}
|
|
|
|
/*
|
|
* Test calling SkStroker for rectangles. Cases to cover:
|
|
*
|
|
* geometry: normal, small (smaller than stroke-width), empty, inverted
|
|
* joint-type for the corners
|
|
*/
|
|
class StrokeRectGM : public skiagm::GM {
|
|
public:
|
|
StrokeRectGM() {}
|
|
|
|
protected:
|
|
|
|
SkString onShortName() override {
|
|
return SkString("strokerect");
|
|
}
|
|
|
|
SkISize onISize() override {
|
|
return SkISize::Make(1024, 740);
|
|
}
|
|
|
|
void onDraw(SkCanvas* canvas) override {
|
|
canvas->drawColor(SK_ColorWHITE);
|
|
canvas->translate(STROKE_WIDTH*3/2, STROKE_WIDTH*3/2);
|
|
|
|
SkPaint paint;
|
|
paint.setStyle(SkPaint::kStroke_Style);
|
|
paint.setStrokeWidth(STROKE_WIDTH);
|
|
|
|
static const SkPaint::Join gJoins[] = {
|
|
SkPaint::kMiter_Join, SkPaint::kRound_Join, SkPaint::kBevel_Join
|
|
};
|
|
|
|
static const SkScalar W = 80;
|
|
static const SkScalar H = 80;
|
|
static const SkRect gRects[] = {
|
|
{ 0, 0, W, H },
|
|
{ W, 0, 0, H },
|
|
{ 0, H, W, 0 },
|
|
{ 0, 0, STROKE_WIDTH, H },
|
|
{ 0, 0, W, STROKE_WIDTH },
|
|
{ 0, 0, STROKE_WIDTH/2, STROKE_WIDTH/2 },
|
|
{ 0, 0, W, 0 },
|
|
{ 0, 0, 0, H },
|
|
{ 0, 0, 0, 0 },
|
|
{ 0, 0, W, FLT_EPSILON },
|
|
{ 0, 0, FLT_EPSILON, H },
|
|
{ 0, 0, FLT_EPSILON, FLT_EPSILON },
|
|
};
|
|
|
|
for (int doFill = 0; doFill <= 1; ++doFill) {
|
|
for (size_t i = 0; i < SK_ARRAY_COUNT(gJoins); ++i) {
|
|
SkPaint::Join join = gJoins[i];
|
|
paint.setStrokeJoin(join);
|
|
|
|
SkAutoCanvasRestore acr(canvas, true);
|
|
for (size_t j = 0; j < SK_ARRAY_COUNT(gRects); ++j) {
|
|
const SkRect& r = gRects[j];
|
|
|
|
SkPath path, fillPath;
|
|
path.addRect(r);
|
|
paint.getFillPath(path, &fillPath);
|
|
draw_path(canvas, fillPath, r, join, doFill);
|
|
|
|
canvas->translate(W + 2 * STROKE_WIDTH, 0);
|
|
}
|
|
acr.restore();
|
|
canvas->translate(0, H + 2 * STROKE_WIDTH);
|
|
}
|
|
paint.setStyle(SkPaint::kStrokeAndFill_Style);
|
|
}
|
|
}
|
|
|
|
private:
|
|
typedef GM INHERITED;
|
|
};
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
DEF_GM(return new StrokeRectGM;)
|