skia2/gm/bug530095.cpp
caryclark d3cfd94228 don't create zero length intervals
Dashing a pattern without zero-length intervals should
not create them if the end of the on interval coincides
with the beginning of the initial dash offset.

R=reed@google.com
BUG=591993
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1766243004

Committed: https://skia.googlesource.com/skia/+/18bbd00190623fb6cdb119df4a118ac3c1aed52a

Review URL: https://codereview.chromium.org/1766243004
2016-03-17 05:33:28 -07:00

62 lines
1.9 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.h"
#include "SkPath.h"
#include "SkDashPathEffect.h"
DEF_SIMPLE_GM(bug530095, canvas, 900, 1200) {
SkPath path1, path2;
path1.addCircle(200, 200, 124);
path2.addCircle(2, 2, 1.24f);
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(26);
SkScalar intervals[] = {700, 700 };
int intervalCount = (int) SK_ARRAY_COUNT(intervals);
paint.setPathEffect(SkDashPathEffect::Create(intervals, intervalCount, -40))->unref();
canvas->drawPath(path1, paint);
paint.setStrokeWidth(0.26f);
SkScalar smIntervals[] = {7, 7 };
int smIntervalCount = (int) SK_ARRAY_COUNT(smIntervals);
paint.setPathEffect(SkDashPathEffect::Create(smIntervals, smIntervalCount, -0.40f))->unref();
canvas->save();
canvas->scale(100, 100);
canvas->translate(4, 0);
canvas->drawPath(path2, paint);
canvas->restore();
paint.setStrokeWidth(26);
paint.setPathEffect(SkDashPathEffect::Create(intervals, intervalCount, 0))->unref();
canvas->save();
canvas->translate(0, 400);
canvas->drawPath(path1, paint);
canvas->restore();
paint.setStrokeWidth(0.26f);
paint.setPathEffect(SkDashPathEffect::Create(smIntervals, smIntervalCount, 0))->unref();
canvas->scale(100, 100);
canvas->translate(4, 4);
canvas->drawPath(path2, paint);
}
DEF_SIMPLE_GM(bug591993, canvas, 40, 140) {
SkPaint p;
p.setColor(SK_ColorRED);
p.setAntiAlias(true);
p.setStyle(SkPaint::kStroke_Style);
p.setStrokeCap(SkPaint::kRound_Cap);
p.setStrokeWidth(10);
SkScalar intervals[] = { 100, 100 };
SkPathEffect* dash = SkDashPathEffect::Create(intervals, SK_ARRAY_COUNT(intervals), 100);
p.setPathEffect(dash)->unref();
canvas->drawLine(20, 20, 120, 20, p);
}