112aa2d22e
Editing curves is still cumbersome, but that's fine. Visualization is just for feedback (and imgui's path renderer is a little wonky), but this helps a bit. Bug: skia: Change-Id: I3dace6d822d472314513bb1ad72bcea1e8991b77 Reviewed-on: https://skia-review.googlesource.com/c/192828 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
/*
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* Copyright 2019 Google LLC
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkCurve_DEFINED
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#define SkCurve_DEFINED
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#include "SkScalar.h"
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#include "SkTArray.h"
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class SkFieldVisitor;
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class SkRandom;
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struct SkCurveSegment {
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SkScalar eval(SkScalar x, SkRandom& random) const;
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void visitFields(SkFieldVisitor* v);
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void setConstant(SkScalar c) {
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fConstant = true;
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fRanged = false;
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fMin[0] = c;
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}
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SkScalar fMin[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
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SkScalar fMax[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
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bool fConstant = true;
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bool fRanged = false;
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bool fBidirectional = false;
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};
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struct SkCurve {
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SkCurve(SkScalar c = 0.0f) {
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fSegments.push_back().setConstant(c);
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}
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SkScalar eval(SkScalar x, SkRandom& random) const;
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void visitFields(SkFieldVisitor* v);
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void getExtents(SkScalar extents[2]) const;
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SkTArray<SkScalar, true> fXValues;
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SkTArray<SkCurveSegment, true> fSegments;
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};
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#endif // SkCurve_DEFINED
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