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Unified Diff: skia/effects/SkCornerPathEffect.cpp

Issue 113827: Remove the remainder of the skia source code from the Chromium repo.... (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/
Patch Set: Created 11 years, 7 months ago
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Index: skia/effects/SkCornerPathEffect.cpp
===================================================================
--- skia/effects/SkCornerPathEffect.cpp (revision 16859)
+++ skia/effects/SkCornerPathEffect.cpp (working copy)
@@ -1,157 +0,0 @@
-/* libs/graphics/effects/SkCornerPathEffect.cpp
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-** http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#include "SkCornerPathEffect.h"
-#include "SkPath.h"
-#include "SkPoint.h"
-#include "SkBuffer.h"
-
-SkCornerPathEffect::SkCornerPathEffect(SkScalar radius) : fRadius(radius)
-{
-}
-
-SkCornerPathEffect::~SkCornerPathEffect()
-{
-}
-
-static bool ComputeStep(const SkPoint& a, const SkPoint& b, SkScalar radius, SkPoint* step)
-{
- SkScalar dist = SkPoint::Distance(a, b);
-
- step->set(b.fX - a.fX, b.fY - a.fY);
-
- if (dist <= radius * 2) {
- step->scale(SK_ScalarHalf);
- return false;
- }
- else {
- step->scale(SkScalarDiv(radius, dist));
- return true;
- }
-}
-
-bool SkCornerPathEffect::filterPath(SkPath* dst, const SkPath& src, SkScalar* width)
-{
- if (fRadius == 0)
- return false;
-
- SkPath::Iter iter(src, false);
- SkPath::Verb verb, prevVerb = (SkPath::Verb)-1;
- SkPoint pts[4];
-
- bool closed;
- SkPoint moveTo, lastCorner;
- SkVector firstStep, step;
- bool prevIsValid = true;
-
- // to avoid warnings
- moveTo.set(0, 0);
- firstStep.set(0, 0);
- lastCorner.set(0, 0);
-
- for (;;) {
- switch (verb = iter.next(pts)) {
- case SkPath::kMove_Verb:
- closed = iter.isClosedContour();
- if (closed) {
- moveTo = pts[0];
- prevIsValid = false;
- }
- else {
- dst->moveTo(pts[0]);
- prevIsValid = true;
- }
- break;
- case SkPath::kLine_Verb:
- {
- bool drawSegment = ComputeStep(pts[0], pts[1], fRadius, &step);
- // prev corner
- if (!prevIsValid) {
- dst->moveTo(moveTo + step);
- prevIsValid = true;
- }
- else {
- dst->quadTo(pts[0].fX, pts[0].fY, pts[0].fX + step.fX, pts[0].fY + step.fY);
- }
- if (drawSegment) {
- dst->lineTo(pts[1].fX - step.fX, pts[1].fY - step.fY);
- }
- lastCorner = pts[1];
- prevIsValid = true;
- }
- break;
- case SkPath::kQuad_Verb:
- // TBD - just replicate the curve for now
- if (!prevIsValid)
- {
- dst->moveTo(pts[0]);
- prevIsValid = true;
- }
- dst->quadTo(pts[1], pts[2]);
- lastCorner = pts[2];
- firstStep.set(0, 0);
- break;
- case SkPath::kCubic_Verb:
- if (!prevIsValid)
- {
- dst->moveTo(pts[0]);
- prevIsValid = true;
- }
- // TBD - just replicate the curve for now
- dst->cubicTo(pts[1], pts[2], pts[3]);
- lastCorner = pts[3];
- firstStep.set(0, 0);
- break;
- case SkPath::kClose_Verb:
- if (firstStep.fX || firstStep.fY)
- dst->quadTo(lastCorner.fX, lastCorner.fY,
- lastCorner.fX + firstStep.fX,
- lastCorner.fY + firstStep.fY);
- dst->close();
- break;
- case SkPath::kDone_Verb:
- goto DONE;
- }
-
- if (SkPath::kMove_Verb == prevVerb)
- firstStep = step;
- prevVerb = verb;
- }
-DONE:
- return true;
-}
-
-SkFlattenable::Factory SkCornerPathEffect::getFactory()
-{
- return CreateProc;
-}
-
-void SkCornerPathEffect::flatten(SkFlattenableWriteBuffer& buffer)
-{
- buffer.writeScalar(fRadius);
-}
-
-SkFlattenable* SkCornerPathEffect::CreateProc(SkFlattenableReadBuffer& buffer)
-{
- return SkNEW_ARGS(SkCornerPathEffect, (buffer));
-}
-
-SkCornerPathEffect::SkCornerPathEffect(SkFlattenableReadBuffer& buffer)
-{
- fRadius = buffer.readScalar();
-}
-
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