Change patheffect to take a (new) StrokeRec object, which encapsulates the fill

or stroke parameters for a path.

Today, the patheffect only sees if the caller was going to stroke or fill, and
if stroke, it just sees the width. With this change, the effect can see all of the
related parameters (e.g. cap/join/miter). No other change is intended at this
time.

After this change, I hope to use this additional data to allow SkDashPathEffect
to, at times, apply the stroke as part of its effect, which may be much more
efficient than first dashing, and then reading that and stroking it.

Most of these files changed just because of the new parameter to filterPath. The
key changes are in SkPathEffect.[h,cpp], SkPaint.cpp and SkScalerContext.cpp
Review URL: https://codereview.appspot.com/6250051

git-svn-id: http://skia.googlecode.com/svn/trunk@4048 2bbb7eff-a529-9590-31e7-b0007b416f81

5 files changed, 10 insertions, 10 deletions

diff --git a/src/effects/Sk1DPathEffect.cpp b/src/effects/Sk1DPathEffect.cpp
index 09e8d135b6..10a9a8434b 100644
--- a/src/effects/Sk1DPathEffect.cpp
+++ b/src/effects/Sk1DPathEffect.cpp
@@ -10,7 +10,7 @@
 #include "Sk1DPathEffect.h"
 #include "SkPathMeasure.h"
 
-bool Sk1DPathEffect::filterPath(SkPath* dst, const SkPath& src, SkScalar* width) {
+bool Sk1DPathEffect::filterPath(SkPath* dst, const SkPath& src, SkStrokeRec*) {
     SkPathMeasure   meas(src, false);
     do {
         SkScalar    length = meas.getLength();
@@ -67,10 +67,10 @@ SkPath1DPathEffect::SkPath1DPathEffect(const SkPath& path, SkScalar advance,
 }
 
 bool SkPath1DPathEffect::filterPath(SkPath* dst, const SkPath& src,
-                                    SkScalar* width) {
+                                    SkStrokeRec* rec) {
     if (fAdvance > 0) {
-        *width = -1;
-        return this->INHERITED::filterPath(dst, src, width);
+        rec->setFillStyle();
+        return this->INHERITED::filterPath(dst, src, rec);
     }
     return false;
 }
diff --git a/src/effects/Sk2DPathEffect.cpp b/src/effects/Sk2DPathEffect.cpp
index 8693157f16..3f8c998651 100644
--- a/src/effects/Sk2DPathEffect.cpp
+++ b/src/effects/Sk2DPathEffect.cpp
@@ -31,7 +31,7 @@ Sk2DPathEffect::Sk2DPathEffect(const SkMatrix& mat) : fMatrix(mat) {
     fMatrixIsInvertible = mat.invert(&fInverse);
 }
 
-bool Sk2DPathEffect::filterPath(SkPath* dst, const SkPath& src, SkScalar* width) {
+bool Sk2DPathEffect::filterPath(SkPath* dst, const SkPath& src, SkStrokeRec*) {
     if (!fMatrixIsInvertible) {
         return false;
     }
diff --git a/src/effects/SkCornerPathEffect.cpp b/src/effects/SkCornerPathEffect.cpp
index 474623175b..749384d579 100644
--- a/src/effects/SkCornerPathEffect.cpp
+++ b/src/effects/SkCornerPathEffect.cpp
@@ -36,7 +36,7 @@ static bool ComputeStep(const SkPoint& a, const SkPoint& b, SkScalar radius,
 }
 
 bool SkCornerPathEffect::filterPath(SkPath* dst, const SkPath& src,
-                                    SkScalar* width) {
+                                    SkStrokeRec*) {
     if (fRadius == 0) {
         return false;
     }
diff --git a/src/effects/SkDashPathEffect.cpp b/src/effects/SkDashPathEffect.cpp
index 0cc97b6b15..13c19afab4 100644
--- a/src/effects/SkDashPathEffect.cpp
+++ b/src/effects/SkDashPathEffect.cpp
@@ -81,9 +81,9 @@ SkDashPathEffect::~SkDashPathEffect() {
 }
 
 bool SkDashPathEffect::filterPath(SkPath* dst, const SkPath& src,
-                                  SkScalar* width) {
+                                  SkStrokeRec* rec) {
     // we do nothing if the src wants to be filled, or if our dashlength is 0
-    if (*width < 0 || fInitialDashLength < 0) {
+    if (rec->isFillStyle() || fInitialDashLength < 0) {
         return false;
     }
 
diff --git a/src/effects/SkDiscretePathEffect.cpp b/src/effects/SkDiscretePathEffect.cpp
index 06b9d19c68..0536e5646d 100644
--- a/src/effects/SkDiscretePathEffect.cpp
+++ b/src/effects/SkDiscretePathEffect.cpp
@@ -26,8 +26,8 @@ SkDiscretePathEffect::SkDiscretePathEffect(SkScalar segLength, SkScalar deviatio
 }
 
 bool SkDiscretePathEffect::filterPath(SkPath* dst, const SkPath& src,
-                                      SkScalar* width) {
-    bool doFill = *width < 0;
+                                      SkStrokeRec* rec) {
+    bool doFill = rec->isFillStyle();
 
     SkPathMeasure   meas(src, doFill);
     uint32_t        seed = SkScalarRound(meas.getLength());