void SkTextView::onDraw(SkCanvas* canvas)
{
this->INHERITED::onDraw(canvas);
if (fText.size() == 0)
return;
SkPaint::Align align = fPaint.getTextAlign();
SkScalar x, y;
switch (align) {
case SkPaint::kLeft_Align:
x = fMargin.fX;
break;
case SkPaint::kCenter_Align:
x = SkScalarHalf(this->width());
break;
default:
SkASSERT(align == SkPaint::kRight_Align);
x = this->width() - fMargin.fX;
break;
}
fPaint.measureText(nil, 0, &y, nil);
y = fMargin.fY - y;
if (fInterp)
{
if (fInterp->draw(canvas, fText, x, y, fPaint))
this->inval(nil);
else
{
delete fInterp;
fInterp = nil;
}
}
else
canvas->drawText(fText.c_str(), fText.size(), x, y, fPaint);
}
// quadApprox - makes an approximation, which we hope is faster
static void quadApprox(SkPath &fPath, const SkPoint &p0, const SkPoint &p1, const SkPoint &p2)
{
//divide the cubic up into two cubics, then convert them into quadratics
//define our points
SkPoint c,j,k,l,m,n,o,p,q, mid;
fPath.getLastPt(&c);
midPt(j, p0, c);
midPt(k, p0, p1);
midPt(l, p1, p2);
midPt(o, j, k);
midPt(p, k, l);
midPt(q, o, p);
//compute the first half
m.set(SkScalarHalf(3*j.fX - c.fX), SkScalarHalf(3*j.fY - c.fY));
n.set(SkScalarHalf(3*o.fX -q.fX), SkScalarHalf(3*o.fY - q.fY));
midPt(mid,m,n);
fPath.quadTo(mid,q);
c = q;
//compute the second half
m.set(SkScalarHalf(3*p.fX - c.fX), SkScalarHalf(3*p.fY - c.fY));
n.set(SkScalarHalf(3*l.fX -p2.fX),SkScalarHalf(3*l.fY -p2.fY));
midPt(mid,m,n);
fPath.quadTo(mid,p2);
}
bool init(const SkPath& src, SkPath* dst, SkStrokeRec* rec,
int intervalCount, SkScalar intervalLength) {
if (rec->isHairlineStyle() || !src.isLine(fPts)) {
return false;
}
// can relax this in the future, if we handle square and round caps
if (SkPaint::kButt_Cap != rec->getCap()) {
return false;
}
SkScalar pathLength = SkPoint::Distance(fPts[0], fPts[1]);
fTangent = fPts[1] - fPts[0];
if (fTangent.isZero()) {
return false;
}
fPathLength = pathLength;
fTangent.scale(SkScalarInvert(pathLength));
fTangent.rotateCCW(&fNormal);
fNormal.scale(SkScalarHalf(rec->getWidth()));
// now estimate how many quads will be added to the path
// resulting segments = pathLen * intervalCount / intervalLen
// resulting points = 4 * segments
SkScalar ptCount = SkScalarMulDiv(pathLength,
SkIntToScalar(intervalCount),
intervalLength);
ptCount = SkTMin(ptCount, SkDashPath::kMaxDashCount);
int n = SkScalarCeilToInt(ptCount) << 2;
dst->incReserve(n);
// we will take care of the stroking
rec->setFillStyle();
return true;
}
static const SkPicture* make_tri_picture() {
SkPath tri = make_tri_path(SkScalarHalf(kTriSide), 0);
SkPaint fill;
fill.setStyle(SkPaint::kFill_Style);
fill.setColor(SK_ColorLTGRAY);;
SkPaint stroke;
stroke.setStyle(SkPaint::kStroke_Style);
stroke.setStrokeWidth(3);
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(kPicWidth),
SkIntToScalar(kPicHeight));
// The saveLayer/restore block is to exercise layer hoisting
canvas->saveLayer(NULL, NULL);
canvas->drawPath(tri, fill);
canvas->drawPath(tri, stroke);
canvas->restore();
return recorder.endRecording();
}
int Font::offsetForPositionForComplexText(const TextRun& run, int x,
bool includePartialGlyphs) const
{
SkPaint paint;
int count = run.length();
SkAutoSTMalloc<64, SkScalar> storage(count);
SkScalar* widths = storage.get();
primaryFont()->platformData().setupPaint(&paint);
count = paint.getTextWidths(run.characters(), count << 1, widths);
if (count > 0)
{
SkScalar pos = 0;
for (int i = 0; i < count; i++)
{
if (x < SkScalarRound(pos + SkScalarHalf(widths[i])))
return i;
pos += widths[i];
}
}
return count;
}
void SkStroke::strokePath(const SkPath& src, SkPath* dst) const {
SkASSERT(&src != NULL && dst != NULL);
SkScalar radius = SkScalarHalf(fWidth);
AutoTmpPath tmp(src, &dst);
if (radius <= 0) {
return;
}
// If src is really a rect, call our specialty strokeRect() method
{
bool isClosed;
SkPath::Direction dir;
if (src.isRect(&isClosed, &dir) && isClosed) {
this->strokeRect(src.getBounds(), dst, dir);
// our answer should preserve the inverseness of the src
if (src.isInverseFillType()) {
SkASSERT(!dst->isInverseFillType());
dst->toggleInverseFillType();
}
return;
}
}
SkAutoConicToQuads converter;
const SkScalar conicTol = SK_Scalar1 / 4;
SkPathStroker stroker(src, radius, fMiterLimit, this->getCap(),
this->getJoin());
SkPath::Iter iter(src, false);
SkPath::Verb lastSegment = SkPath::kMove_Verb;
for (;;) {
SkPoint pts[4];
switch (iter.next(pts, false)) {
case SkPath::kMove_Verb:
stroker.moveTo(pts[0]);
break;
case SkPath::kLine_Verb:
stroker.lineTo(pts[1]);
lastSegment = SkPath::kLine_Verb;
break;
case SkPath::kQuad_Verb:
stroker.quadTo(pts[1], pts[2]);
lastSegment = SkPath::kQuad_Verb;
break;
case SkPath::kConic_Verb: {
// todo: if we had maxcurvature for conics, perhaps we should
// natively extrude the conic instead of converting to quads.
const SkPoint* quadPts =
converter.computeQuads(pts, iter.conicWeight(), conicTol);
for (int i = 0; i < converter.countQuads(); ++i) {
stroker.quadTo(quadPts[1], quadPts[2]);
quadPts += 2;
}
lastSegment = SkPath::kQuad_Verb;
} break;
case SkPath::kCubic_Verb:
stroker.cubicTo(pts[1], pts[2], pts[3]);
lastSegment = SkPath::kCubic_Verb;
break;
case SkPath::kClose_Verb:
stroker.close(lastSegment == SkPath::kLine_Verb);
break;
case SkPath::kDone_Verb:
goto DONE;
}
}
DONE:
stroker.done(dst, lastSegment == SkPath::kLine_Verb);
if (fDoFill) {
if (src.cheapIsDirection(SkPath::kCCW_Direction)) {
dst->reverseAddPath(src);
} else {
dst->addPath(src);
}
} else {
// Seems like we can assume that a 2-point src would always result in
// a convex stroke, but testing has proved otherwise.
// TODO: fix the stroker to make this assumption true (without making
// it slower that the work that will be done in computeConvexity())
#if 0
// this test results in a non-convex stroke :(
static void test(SkCanvas* canvas) {
SkPoint pts[] = { 146.333328, 192.333328, 300.333344, 293.333344 };
SkPaint paint;
paint.setStrokeWidth(7);
paint.setStrokeCap(SkPaint::kRound_Cap);
canvas->drawLine(pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, paint);
}
#endif
#if 0
if (2 == src.countPoints()) {
dst->setIsConvex(true);
}
#endif
}
static SkScalar center_align_proc(SkScalar childLimit, SkScalar parentLimit) { return SkScalarHalf(parentLimit - childLimit); }
void TextArtView::onDrawContent(SkCanvas* canvas)
{
const std::string TEXT = "Helpo TextArt Effects";
SkTypeface* typeface = SkTypeface::CreateFromName("Georgia", SkTypeface::kBold);
if (!initialized)
{
initialized = true;
WarpFrameT warpFrame;
SkMatrix warpMatrix;
warpMatrix.setIdentity();
getWarpParams(warpFrame, warpMatrix);
bSkeleton_ = warpFrame[0];
if (warpFrame.size()>1)
tSkeleton_ = warpFrame[1];
TextArt::EnvelopeWarp textArt(bSkeleton_, warpMatrix);
textArt.setTopSkeleton(tSkeleton_);
textArt.setIsNormalRotated(getIsNormalRotated());
textArt.setIsSymmetric(getIsSymmetric());
textArt.setIsTopBased(getIsTopBased());
path_ = textArt.warp(TEXT, typeface);
}
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(64));
paint.setStyle(SkPaint::kStroke_Style);
paint.setTypeface(typeface);
canvas->save();
//center path on the cnavas
const SkRect& pathBounds = path_.getBounds();
SkISize screenSize = canvas->getDeviceSize();
SkScalar xOffset = SkScalarHalf( SkIntToScalar(screenSize.width()) ) - pathBounds.centerX();
SkScalar yOffset = SkScalarHalf( SkIntToScalar(screenSize.height()) ) - pathBounds.centerY();
canvas->translate(xOffset, yOffset);
paint.setColor(0x33FF3333);
// canvas->drawRect(pathBounds, paint);
/*
paint.setColor(SK_ColorGREEN);
canvas->drawPath(textArt.bSkeleton_, paint);
canvas->drawPath(textArt.bWarped_, paint);
paint.setColor(SK_ColorCYAN);
canvas->drawPath(textArt.tSkeleton_, paint);
canvas->drawPath(textArt.tWarped_, paint);
*/
//draw the skeleton path
paint.setColor(SK_ColorBLUE);
canvas->drawPath(bSkeleton_, paint);
canvas->drawPath(tSkeleton_, paint);
//draw the path
paint.setColor(SK_ColorBLACK);
paint.setStyle(SkPaint::kFill_Style);
canvas->drawPath(path_, paint);
/*
paint.setColor(SK_ColorRED);
canvas->drawPath(textArt.normal, paint);
canvas->drawPath(textArt.tFlattern, paint);
for(int i=0; i<textArt.intersections.size(); ++i)
{
canvas->drawCircle(textArt.intersections[i].fX, textArt.intersections[i].fY, 1.5, paint);
}
*/
canvas->restore();
}
void GrBitmapTextContext::onDrawText(const GrPaint& paint, const SkPaint& skPaint,
const char text[], size_t byteLength,
SkScalar x, SkScalar y) {
SkASSERT(byteLength == 0 || text != NULL);
// nothing to draw
if (text == NULL || byteLength == 0 /*|| fRC->isEmpty()*/) {
return;
}
this->init(paint, skPaint);
SkDrawCacheProc glyphCacheProc = fSkPaint.getDrawCacheProc();
SkAutoGlyphCache autoCache(fSkPaint, &fDeviceProperties, &fContext->getMatrix());
SkGlyphCache* cache = autoCache.getCache();
GrFontScaler* fontScaler = GetGrFontScaler(cache);
// transform our starting point
{
SkPoint loc;
fContext->getMatrix().mapXY(x, y, &loc);
x = loc.fX;
y = loc.fY;
}
// need to measure first
int numGlyphs;
if (fSkPaint.getTextAlign() != SkPaint::kLeft_Align) {
SkVector stopVector;
numGlyphs = MeasureText(cache, glyphCacheProc, text, byteLength, &stopVector);
SkScalar stopX = stopVector.fX;
SkScalar stopY = stopVector.fY;
if (fSkPaint.getTextAlign() == SkPaint::kCenter_Align) {
stopX = SkScalarHalf(stopX);
stopY = SkScalarHalf(stopY);
}
x -= stopX;
y -= stopY;
} else {
numGlyphs = fSkPaint.textToGlyphs(text, byteLength, NULL);
}
fTotalVertexCount = kVerticesPerGlyph*numGlyphs;
const char* stop = text + byteLength;
SkAutoKern autokern;
SkFixed fxMask = ~0;
SkFixed fyMask = ~0;
SkFixed halfSampleX, halfSampleY;
if (cache->isSubpixel()) {
halfSampleX = halfSampleY = (SK_FixedHalf >> SkGlyph::kSubBits);
SkAxisAlignment baseline = SkComputeAxisAlignmentForHText(fContext->getMatrix());
if (kX_SkAxisAlignment == baseline) {
fyMask = 0;
halfSampleY = SK_FixedHalf;
} else if (kY_SkAxisAlignment == baseline) {
fxMask = 0;
halfSampleX = SK_FixedHalf;
}
} else {
static void MiterJoiner(SkPath* outer, SkPath* inner, const SkVector& beforeUnitNormal,
const SkPoint& pivot, const SkVector& afterUnitNormal,
SkScalar radius, SkScalar invMiterLimit,
bool prevIsLine, bool currIsLine)
{
// negate the dot since we're using normals instead of tangents
SkScalar dotProd = SkPoint::DotProduct(beforeUnitNormal, afterUnitNormal);
AngleType angleType = Dot2AngleType(dotProd);
SkVector before = beforeUnitNormal;
SkVector after = afterUnitNormal;
SkVector mid;
SkScalar sinHalfAngle;
bool ccw;
if (angleType == kNearlyLine_AngleType)
return;
if (angleType == kNearly180_AngleType)
{
currIsLine = false;
goto DO_BLUNT;
}
ccw = !is_clockwise(before, after);
if (ccw)
{
SkTSwap<SkPath*>(outer, inner);
before.negate();
after.negate();
}
/* Before we enter the world of square-roots and divides,
check if we're trying to join an upright right angle
(common case for stroking rectangles). If so, special case
that (for speed an accuracy).
Note: we only need to check one normal if dot==0
*/
if (0 == dotProd && invMiterLimit <= kOneOverSqrt2)
{
mid.set(SkScalarMul(before.fX + after.fX, radius),
SkScalarMul(before.fY + after.fY, radius));
goto DO_MITER;
}
/* midLength = radius / sinHalfAngle
if (midLength > miterLimit * radius) abort
if (radius / sinHalf > miterLimit * radius) abort
if (1 / sinHalf > miterLimit) abort
if (1 / miterLimit > sinHalf) abort
My dotProd is opposite sign, since it is built from normals and not tangents
hence 1 + dot instead of 1 - dot in the formula
*/
sinHalfAngle = SkScalarSqrt(SkScalarHalf(SK_Scalar1 + dotProd));
if (sinHalfAngle < invMiterLimit)
{
currIsLine = false;
goto DO_BLUNT;
}
// choose the most accurate way to form the initial mid-vector
if (angleType == kSharp_AngleType)
{
mid.set(after.fY - before.fY, before.fX - after.fX);
if (ccw)
mid.negate();
}
else
mid.set(before.fX + after.fX, before.fY + after.fY);
mid.setLength(SkScalarDiv(radius, sinHalfAngle));
DO_MITER:
if (prevIsLine)
outer->setLastPt(pivot.fX + mid.fX, pivot.fY + mid.fY);
else
outer->lineTo(pivot.fX + mid.fX, pivot.fY + mid.fY);
DO_BLUNT:
after.scale(radius);
if (!currIsLine)
outer->lineTo(pivot.fX + after.fX, pivot.fY + after.fY);
HandleInnerJoin(inner, pivot, after);
}
void SkStroke::strokePath(const SkPath& src, SkPath* dst) const {
SkASSERT(&src != NULL && dst != NULL);
SkScalar radius = SkScalarHalf(fWidth);
dst->reset();
if (radius <= 0) {
return;
}
#ifdef SK_SCALAR_IS_FIXED
void (*proc)(SkPoint pts[], int count) = identity_proc;
if (needs_to_shrink(src)) {
proc = shift_down_2_proc;
radius >>= 2;
if (radius == 0) {
return;
}
}
#endif
SkPathStroker stroker(radius, fMiterLimit, this->getCap(),
this->getJoin());
SkPath::Iter iter(src, false);
SkPoint pts[4];
SkPath::Verb verb, lastSegment = SkPath::kMove_Verb;
while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
switch (verb) {
case SkPath::kMove_Verb:
APPLY_PROC(proc, &pts[0], 1);
stroker.moveTo(pts[0]);
break;
case SkPath::kLine_Verb:
APPLY_PROC(proc, &pts[1], 1);
stroker.lineTo(pts[1]);
lastSegment = verb;
break;
case SkPath::kQuad_Verb:
APPLY_PROC(proc, &pts[1], 2);
stroker.quadTo(pts[1], pts[2]);
lastSegment = verb;
break;
case SkPath::kCubic_Verb:
APPLY_PROC(proc, &pts[1], 3);
stroker.cubicTo(pts[1], pts[2], pts[3]);
lastSegment = verb;
break;
case SkPath::kClose_Verb:
stroker.close(lastSegment == SkPath::kLine_Verb);
break;
default:
break;
}
}
stroker.done(dst, lastSegment == SkPath::kLine_Verb);
#ifdef SK_SCALAR_IS_FIXED
// undo our previous down_shift
if (shift_down_2_proc == proc) {
// need a real shift methid on path. antialias paths could use this too
SkMatrix matrix;
matrix.setScale(SkIntToScalar(4), SkIntToScalar(4));
dst->transform(matrix);
}
#endif
if (fDoFill) {
if (src.cheapIsDirection(SkPath::kCCW_Direction)) {
dst->reverseAddPath(src);
} else {
dst->addPath(src);
}
} else {
// Seems like we can assume that a 2-point src would always result in
// a convex stroke, but testing has proved otherwise.
// TODO: fix the stroker to make this assumption true (without making
// it slower that the work that will be done in computeConvexity())
#if 0
// this test results in a non-convex stroke :(
static void test(SkCanvas* canvas) {
SkPoint pts[] = { 146.333328, 192.333328, 300.333344, 293.333344 };
SkPaint paint;
paint.setStrokeWidth(7);
paint.setStrokeCap(SkPaint::kRound_Cap);
canvas->drawLine(pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, paint);
}
#endif
#if 0
if (2 == src.countPoints()) {
dst->setIsConvex(true);
}
#endif
}
void GrTextUtils::DrawDFText(GrAtlasTextBlob* blob, int runIndex,
GrBatchFontCache* fontCache, const SkSurfaceProps& props,
const SkPaint& skPaint, GrColor color,
const SkMatrix& viewMatrix,
const char text[], size_t byteLength,
SkScalar x, SkScalar y) {
SkASSERT(byteLength == 0 || text != nullptr);
// nothing to draw
if (text == nullptr || byteLength == 0) {
return;
}
SkPaint::GlyphCacheProc glyphCacheProc = skPaint.getGlyphCacheProc(true);
SkAutoDescriptor desc;
skPaint.getScalerContextDescriptor(&desc, props, SkPaint::FakeGamma::Off, nullptr);
SkGlyphCache* origPaintCache = SkGlyphCache::DetachCache(skPaint.getTypeface(),
desc.getDesc());
SkTArray<SkScalar> positions;
const char* textPtr = text;
SkFixed stopX = 0;
SkFixed stopY = 0;
SkFixed origin = 0;
switch (skPaint.getTextAlign()) {
case SkPaint::kRight_Align: origin = SK_Fixed1; break;
case SkPaint::kCenter_Align: origin = SK_FixedHalf; break;
case SkPaint::kLeft_Align: origin = 0; break;
}
SkAutoKern autokern;
const char* stop = text + byteLength;
while (textPtr < stop) {
// don't need x, y here, since all subpixel variants will have the
// same advance
const SkGlyph& glyph = glyphCacheProc(origPaintCache, &textPtr);
SkFixed width = glyph.fAdvanceX + autokern.adjust(glyph);
positions.push_back(SkFixedToScalar(stopX + SkFixedMul(origin, width)));
SkFixed height = glyph.fAdvanceY;
positions.push_back(SkFixedToScalar(stopY + SkFixedMul(origin, height)));
stopX += width;
stopY += height;
}
SkASSERT(textPtr == stop);
SkGlyphCache::AttachCache(origPaintCache);
// now adjust starting point depending on alignment
SkScalar alignX = SkFixedToScalar(stopX);
SkScalar alignY = SkFixedToScalar(stopY);
if (skPaint.getTextAlign() == SkPaint::kCenter_Align) {
alignX = SkScalarHalf(alignX);
alignY = SkScalarHalf(alignY);
} else if (skPaint.getTextAlign() == SkPaint::kLeft_Align) {
alignX = 0;
alignY = 0;
}
x -= alignX;
y -= alignY;
SkPoint offset = SkPoint::Make(x, y);
DrawDFPosText(blob, runIndex, fontCache, props, skPaint, color, viewMatrix, text, byteLength,
positions.begin(), 2, offset);
}
// Need a quick way to know a maximum distance between drawText calls to know if
// they are part of the same logical phrase when searching. By crude
// inspection, half the point size seems a good guess at the width of a space
// character.
static inline SkScalar approximateSpaceWidth(const SkPaint& paint) {
return SkScalarHalf(paint.getTextSize());
}
// Test out the basic API entry points
static void test_round_rect_basic(skiatest::Reporter* reporter) {
// Test out initialization methods
SkPoint zeroPt = { 0, 0 };
SkRRect empty;
empty.setEmpty();
REPORTER_ASSERT(reporter, SkRRect::kEmpty_Type == empty.type());
REPORTER_ASSERT(reporter, empty.rect().isEmpty());
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, zeroPt == empty.radii((SkRRect::Corner) i));
}
//----
SkRect rect = SkRect::MakeLTRB(0, 0, kWidth, kHeight);
SkRRect rr1;
rr1.setRect(rect);
REPORTER_ASSERT(reporter, SkRRect::kRect_Type == rr1.type());
REPORTER_ASSERT(reporter, rr1.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, zeroPt == rr1.radii((SkRRect::Corner) i));
}
SkRRect rr1_2; // construct the same RR using the most general set function
SkVector rr1_2_radii[4] = { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 } };
rr1_2.setRectRadii(rect, rr1_2_radii);
REPORTER_ASSERT(reporter, rr1_2 == rr1 && rr1_2.getType() == rr1.getType());
SkRRect rr1_3; // construct the same RR using the nine patch set function
rr1_3.setNinePatch(rect, 0, 0, 0, 0);
REPORTER_ASSERT(reporter, rr1_3 == rr1 && rr1_3.getType() == rr1.getType());
//----
SkPoint halfPoint = { SkScalarHalf(kWidth), SkScalarHalf(kHeight) };
SkRRect rr2;
rr2.setOval(rect);
REPORTER_ASSERT(reporter, SkRRect::kOval_Type == rr2.type());
REPORTER_ASSERT(reporter, rr2.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter,
rr2.radii((SkRRect::Corner) i).equalsWithinTolerance(halfPoint));
}
SkRRect rr2_2; // construct the same RR using the most general set function
SkVector rr2_2_radii[4] = { { halfPoint.fX, halfPoint.fY }, { halfPoint.fX, halfPoint.fY },
{ halfPoint.fX, halfPoint.fY }, { halfPoint.fX, halfPoint.fY } };
rr2_2.setRectRadii(rect, rr2_2_radii);
REPORTER_ASSERT(reporter, rr2_2 == rr2 && rr2_2.getType() == rr2.getType());
SkRRect rr2_3; // construct the same RR using the nine patch set function
rr2_3.setNinePatch(rect, halfPoint.fX, halfPoint.fY, halfPoint.fX, halfPoint.fY);
REPORTER_ASSERT(reporter, rr2_3 == rr2 && rr2_3.getType() == rr2.getType());
//----
SkPoint p = { 5, 5 };
SkRRect rr3;
rr3.setRectXY(rect, p.fX, p.fY);
REPORTER_ASSERT(reporter, SkRRect::kSimple_Type == rr3.type());
REPORTER_ASSERT(reporter, rr3.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, p == rr3.radii((SkRRect::Corner) i));
}
SkRRect rr3_2; // construct the same RR using the most general set function
SkVector rr3_2_radii[4] = { { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 } };
rr3_2.setRectRadii(rect, rr3_2_radii);
REPORTER_ASSERT(reporter, rr3_2 == rr3 && rr3_2.getType() == rr3.getType());
SkRRect rr3_3; // construct the same RR using the nine patch set function
rr3_3.setNinePatch(rect, 5, 5, 5, 5);
REPORTER_ASSERT(reporter, rr3_3 == rr3 && rr3_3.getType() == rr3.getType());
//----
test_9patch_rrect(reporter, rect, 10, 9, 8, 7, true);
{
// Test out the rrect from skia:3466
SkRect rect2 = SkRect::MakeLTRB(0.358211994f, 0.755430222f, 0.872866154f, 0.806214333f);
test_9patch_rrect(reporter,
rect2,
0.926942348f, 0.642850280f, 0.529063463f, 0.587844372f,
false);
}
//----
SkPoint radii2[4] = { { 0, 0 }, { 0, 0 }, { 50, 50 }, { 20, 50 } };
SkRRect rr5;
rr5.setRectRadii(rect, radii2);
REPORTER_ASSERT(reporter, SkRRect::kComplex_Type == rr5.type());
REPORTER_ASSERT(reporter, rr5.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, radii2[i] == rr5.radii((SkRRect::Corner) i));
}
// Test out == & !=
REPORTER_ASSERT(reporter, empty != rr3);
REPORTER_ASSERT(reporter, rr3 != rr5);
}
void SkTextBox::draw(SkCanvas* canvas, const char text[], size_t len, const SkPaint& paint)
{
SkASSERT(canvas && &paint && (text || len == 0));
SkScalar marginWidth = fBox.width();
if (marginWidth <= 0 || len == 0)
return;
const char* textStop = text + len;
SkScalar x, y, scaledSpacing, height, fontHeight;
SkPaint::FontMetrics metrics;
switch (paint.getTextAlign()) {
case SkPaint::kLeft_Align:
x = 0;
break;
case SkPaint::kCenter_Align:
x = SkScalarHalf(marginWidth);
break;
default:
x = marginWidth;
break;
}
x += fBox.fLeft;
fontHeight = paint.getFontMetrics(&metrics);
scaledSpacing = SkScalarMul(fontHeight, fSpacingMul) + fSpacingAdd;
height = fBox.height();
// compute Y position for first line
{
SkScalar textHeight = fontHeight;
if (fMode == kLineBreak_Mode && fSpacingAlign != kStart_SpacingAlign)
{
int count = SkTextLineBreaker::CountLines(text, textStop - text, paint, marginWidth);
SkASSERT(count > 0);
textHeight += scaledSpacing * (count - 1);
}
switch (fSpacingAlign) {
case kStart_SpacingAlign:
y = 0;
break;
case kCenter_SpacingAlign:
y = SkScalarHalf(height - textHeight);
break;
default:
SkASSERT(fSpacingAlign == kEnd_SpacingAlign);
y = height - textHeight;
break;
}
y += fBox.fTop - metrics.fAscent;
}
for (;;)
{
len = linebreak(text, textStop, paint, marginWidth);
if (y + metrics.fDescent + metrics.fLeading > 0)
canvas->drawText(text, len, x, y, paint);
text += len;
if (text >= textStop)
break;
y += scaledSpacing;
if (y + metrics.fAscent >= height)
break;
}
}
SkRSXform asRSXform() const {
return SkRSXform::MakeFromRadians(fScale, fRadian, fCenter.x(), fCenter.y(),
SkScalarHalf(kCellSize), SkScalarHalf(kCellSize));
}
void SkRRect::setNinePatch(const SkRect& rect, SkScalar leftRad, SkScalar topRad,
SkScalar rightRad, SkScalar bottomRad) {
fRect = rect;
fRect.sort();
if (fRect.isEmpty() || !fRect.isFinite()) {
this->setEmpty();
return;
}
const SkScalar array[4] = { leftRad, topRad, rightRad, bottomRad };
if (!SkScalarsAreFinite(array, 4)) {
this->setRect(rect); // devolve into a simple rect
return;
}
leftRad = SkMaxScalar(leftRad, 0);
topRad = SkMaxScalar(topRad, 0);
rightRad = SkMaxScalar(rightRad, 0);
bottomRad = SkMaxScalar(bottomRad, 0);
SkScalar scale = SK_Scalar1;
if (leftRad + rightRad > fRect.width()) {
scale = fRect.width() / (leftRad + rightRad);
}
if (topRad + bottomRad > fRect.height()) {
scale = SkMinScalar(scale, fRect.height() / (topRad + bottomRad));
}
if (scale < SK_Scalar1) {
leftRad = SkScalarMul(leftRad, scale);
topRad = SkScalarMul(topRad, scale);
rightRad = SkScalarMul(rightRad, scale);
bottomRad = SkScalarMul(bottomRad, scale);
}
if (leftRad == rightRad && topRad == bottomRad) {
if (leftRad >= SkScalarHalf(fRect.width()) && topRad >= SkScalarHalf(fRect.height())) {
fType = kOval_Type;
} else if (0 == leftRad || 0 == topRad) {
// If the left and (by equality check above) right radii are zero then it is a rect.
// Same goes for top/bottom.
fType = kRect_Type;
leftRad = 0;
topRad = 0;
rightRad = 0;
bottomRad = 0;
} else {
fType = kSimple_Type;
}
} else {
fType = kNinePatch_Type;
}
fRadii[kUpperLeft_Corner].set(leftRad, topRad);
fRadii[kUpperRight_Corner].set(rightRad, topRad);
fRadii[kLowerRight_Corner].set(rightRad, bottomRad);
fRadii[kLowerLeft_Corner].set(leftRad, bottomRad);
SkDEBUGCODE(this->validate();)
}
void GrStencilAndCoverTextContext::TextRun::setText(const char text[], size_t byteLength,
SkScalar x, SkScalar y) {
SkASSERT(byteLength == 0 || text != nullptr);
SkGlyphCache* glyphCache = this->getGlyphCache();
SkDrawCacheProc glyphCacheProc = fFont.getDrawCacheProc();
fTotalGlyphCount = fFont.countText(text, byteLength);
fInstanceData.reset(InstanceData::Alloc(GrPathRendering::kTranslate_PathTransformType,
fTotalGlyphCount));
const char* stop = text + byteLength;
// Measure first if needed.
if (fFont.getTextAlign() != SkPaint::kLeft_Align) {
SkFixed stopX = 0;
SkFixed stopY = 0;
const char* textPtr = text;
while (textPtr < stop) {
// We don't need x, y here, since all subpixel variants will have the
// same advance.
const SkGlyph& glyph = glyphCacheProc(glyphCache, &textPtr, 0, 0);
stopX += glyph.fAdvanceX;
stopY += glyph.fAdvanceY;
}
SkASSERT(textPtr == stop);
SkScalar alignX = SkFixedToScalar(stopX) * fTextRatio;
SkScalar alignY = SkFixedToScalar(stopY) * fTextRatio;
if (fFont.getTextAlign() == SkPaint::kCenter_Align) {
alignX = SkScalarHalf(alignX);
alignY = SkScalarHalf(alignY);
}
x -= alignX;
y -= alignY;
}
SkAutoKern autokern;
SkFixed fixedSizeRatio = SkScalarToFixed(fTextRatio);
SkFixed fx = SkScalarToFixed(x);
SkFixed fy = SkScalarToFixed(y);
FallbackBlobBuilder fallback;
while (text < stop) {
const SkGlyph& glyph = glyphCacheProc(glyphCache, &text, 0, 0);
fx += SkFixedMul(autokern.adjust(glyph), fixedSizeRatio);
if (glyph.fWidth) {
this->appendGlyph(glyph, SkPoint::Make(SkFixedToScalar(fx), SkFixedToScalar(fy)),
&fallback);
}
fx += SkFixedMul(glyph.fAdvanceX, fixedSizeRatio);
fy += SkFixedMul(glyph.fAdvanceY, fixedSizeRatio);
}
fFallbackTextBlob.reset(fallback.buildIfNeeded(&fFallbackGlyphCount));
}
static void test_intersectline(skiatest::Reporter* reporter) {
static const SkScalar L = 0;
static const SkScalar T = 0;
static const SkScalar R = SkIntToScalar(100);
static const SkScalar B = SkIntToScalar(100);
static const SkScalar CX = SkScalarHalf(L + R);
static const SkScalar CY = SkScalarHalf(T + B);
static const SkRect gR = { L, T, R, B };
size_t i;
SkPoint dst[2];
static const SkPoint gEmpty[] = {
// sides
{ L, CY }, { L - 10, CY },
{ R, CY }, { R + 10, CY },
{ CX, T }, { CX, T - 10 },
{ CX, B }, { CX, B + 10 },
// corners
{ L, T }, { L - 10, T - 10 },
{ L, B }, { L - 10, B + 10 },
{ R, T }, { R + 10, T - 10 },
{ R, B }, { R + 10, B + 10 },
};
for (i = 0; i < SK_ARRAY_COUNT(gEmpty); i += 2) {
bool valid = SkLineClipper::IntersectLine(&gEmpty[i], gR, dst);
if (valid) {
SkDebugf("----- [%d] %g %g -> %g %g\n", i/2, dst[0].fX, dst[0].fY, dst[1].fX, dst[1].fY);
}
REPORTER_ASSERT(reporter, !valid);
}
static const SkPoint gFull[] = {
// diagonals, chords
{ L, T }, { R, B },
{ L, B }, { R, T },
{ CX, T }, { CX, B },
{ L, CY }, { R, CY },
{ CX, T }, { R, CY },
{ CX, T }, { L, CY },
{ L, CY }, { CX, B },
{ R, CY }, { CX, B },
// edges
{ L, T }, { L, B },
{ R, T }, { R, B },
{ L, T }, { R, T },
{ L, B }, { R, B },
};
for (i = 0; i < SK_ARRAY_COUNT(gFull); i += 2) {
bool valid = SkLineClipper::IntersectLine(&gFull[i], gR, dst);
if (!valid || memcmp(&gFull[i], dst, sizeof(dst))) {
SkDebugf("++++ [%d] %g %g -> %g %g\n", i/2, dst[0].fX, dst[0].fY, dst[1].fX, dst[1].fY);
}
REPORTER_ASSERT(reporter, valid && !memcmp(&gFull[i], dst, sizeof(dst)));
}
static const SkPoint gPartial[] = {
{ L - 10, CY }, { CX, CY }, { L, CY }, { CX, CY },
{ CX, T - 10 }, { CX, CY }, { CX, T }, { CX, CY },
{ R + 10, CY }, { CX, CY }, { R, CY }, { CX, CY },
{ CX, B + 10 }, { CX, CY }, { CX, B }, { CX, CY },
// extended edges
{ L, T - 10 }, { L, B + 10 }, { L, T }, { L, B },
{ R, T - 10 }, { R, B + 10 }, { R, T }, { R, B },
{ L - 10, T }, { R + 10, T }, { L, T }, { R, T },
{ L - 10, B }, { R + 10, B }, { L, B }, { R, B },
};
for (i = 0; i < SK_ARRAY_COUNT(gPartial); i += 4) {
bool valid = SkLineClipper::IntersectLine(&gPartial[i], gR, dst);
if (!valid || memcmp(&gPartial[i+2], dst, sizeof(dst))) {
SkDebugf("++++ [%d] %g %g -> %g %g\n", i/2, dst[0].fX, dst[0].fY, dst[1].fX, dst[1].fY);
}
REPORTER_ASSERT(reporter, valid &&
!memcmp(&gPartial[i+2], dst, sizeof(dst)));
}
}
void GrDistanceFieldTextContext::onDrawText(GrRenderTarget* rt, const GrClip& clip,
const GrPaint& paint,
const SkPaint& skPaint, const SkMatrix& viewMatrix,
const char text[], size_t byteLength,
SkScalar x, SkScalar y,
const SkIRect& regionClipBounds) {
SkASSERT(byteLength == 0 || text != NULL);
// nothing to draw
if (text == NULL || byteLength == 0) {
return;
}
fViewMatrix = viewMatrix;
SkDrawCacheProc glyphCacheProc = skPaint.getDrawCacheProc();
SkAutoGlyphCache autoCache(skPaint, &fDeviceProperties, NULL);
SkGlyphCache* cache = autoCache.getCache();
SkTArray<SkScalar> positions;
const char* textPtr = text;
SkFixed stopX = 0;
SkFixed stopY = 0;
SkFixed origin;
switch (skPaint.getTextAlign()) {
case SkPaint::kRight_Align: origin = SK_Fixed1; break;
case SkPaint::kCenter_Align: origin = SK_FixedHalf; break;
case SkPaint::kLeft_Align: origin = 0; break;
default: SkFAIL("Invalid paint origin"); return;
}
SkAutoKern autokern;
const char* stop = text + byteLength;
while (textPtr < stop) {
// don't need x, y here, since all subpixel variants will have the
// same advance
const SkGlyph& glyph = glyphCacheProc(cache, &textPtr, 0, 0);
SkFixed width = glyph.fAdvanceX + autokern.adjust(glyph);
positions.push_back(SkFixedToScalar(stopX + SkFixedMul(origin, width)));
SkFixed height = glyph.fAdvanceY;
positions.push_back(SkFixedToScalar(stopY + SkFixedMul(origin, height)));
stopX += width;
stopY += height;
}
SkASSERT(textPtr == stop);
// now adjust starting point depending on alignment
SkScalar alignX = SkFixedToScalar(stopX);
SkScalar alignY = SkFixedToScalar(stopY);
if (skPaint.getTextAlign() == SkPaint::kCenter_Align) {
alignX = SkScalarHalf(alignX);
alignY = SkScalarHalf(alignY);
} else if (skPaint.getTextAlign() == SkPaint::kLeft_Align) {
alignX = 0;
alignY = 0;
}
x -= alignX;
y -= alignY;
SkPoint offset = SkPoint::Make(x, y);
this->onDrawPosText(rt, clip, paint, skPaint, viewMatrix, text, byteLength, positions.begin(),
2, offset, regionClipBounds);
}
SkPath TextArt::EnvelopeWarp::warp(const std::string& text, SkTypeface* typeface)
{
SkPath warpedPath;
if (text.empty())
return warpedPath;
//prepare paint
SkPaint paint;
paint.setTextSize(SkIntToScalar(64));
paint.setTypeface(typeface);
paint.setTextAlign(SkPaint::kCenter_Align);
//measure Bottom path to center text on it
SkPathMeasure bMeasure(bSkeleton_, false);
SkScalar hBOffset = 0;
if (paint.getTextAlign() != SkPaint::kLeft_Align)
{
SkScalar pathLen = bMeasure.getLength();
if (paint.getTextAlign() == SkPaint::kCenter_Align)
{
pathLen = SkScalarHalf(pathLen);
}
hBOffset += pathLen;
}
//get text boundaries on normal(non-warped) state
{
SkMatrix scaleMartix;
scaleMartix.setIdentity();
SkTextToPathIter iter(text.c_str(), text.size(), paint, true);
const SkPath* glypthPath;
SkScalar xpos;
SkScalar scale = iter.getPathScale();
scaleMartix.setScale(scale, scale);
while (iter.next(&glypthPath, &xpos))
{
if (glypthPath)
{
//prepare resulting transformatiom Matrix
SkMatrix compositeMatrix(scaleMartix);
compositeMatrix.postTranslate(xpos + hBOffset, 0);
SkPath p;
(*glypthPath).transform(compositeMatrix, &p);
//get normal(without any warps) text boundaries
boundsRect_.join( p.getBounds() );
}
}
}
//center text on Top skeleton
SkPathMeasure tMeasure(tSkeleton_, false);
SkScalar hTOffset = 0;
{
if (paint.getTextAlign() != SkPaint::kLeft_Align)
{
SkScalar pathLen = tMeasure.getLength();
if (paint.getTextAlign() == SkPaint::kCenter_Align)
{
pathLen = SkScalarHalf(pathLen);
}
hTOffset += pathLen;
}
}
//warp text on Bottom and Top skeletons
{
SkTextToPathIter iter(text.c_str(), text.size(), paint, true);
SkScalar xpos;
SkMatrix scaleMartix;
SkScalar scale = iter.getPathScale();
scaleMartix.setScale(scale, scale);
SkPath line;
line.lineTo(SkIntToScalar(100), SkIntToScalar(0));
SkPathMeasure lineMeasure(line, false);
SkPathCrossing bCrossing(bSkeleton_);
SkPathCrossing tCrossing(tSkeleton_);
const SkPath* glypthPathOrig;
while (iter.next(&glypthPathOrig, &xpos))
{
if (glypthPathOrig)
{
SkPath glypthPath;
SkRect glypthBound;
glypthBound = (*glypthPathOrig).getBounds();
glypthPathOrig->offset(-glypthBound.fLeft, 0, &glypthPath);
morph(bSkeleton_, bMeasure, bCrossing,
tSkeleton_, tMeasure, tCrossing,
glypthPath, lineMeasure, scaleMartix,
xpos, hBOffset, hTOffset, warpedPath);
}
}
}
return warpedPath;
}
SkScalar SkTextBox::visit(Visitor& visitor, const char text[], size_t len,
const SkPaint& paint) const {
SkScalar marginWidth = fBox.width();
if (marginWidth <= 0 || len == 0) {
return fBox.top();
}
const char* textStop = text + len;
SkScalar x, y, scaledSpacing, height, fontHeight;
SkPaint::FontMetrics metrics;
switch (paint.getTextAlign()) {
case SkPaint::kLeft_Align:
x = 0;
break;
case SkPaint::kCenter_Align:
x = SkScalarHalf(marginWidth);
break;
default:
x = marginWidth;
break;
}
x += fBox.fLeft;
fontHeight = paint.getFontMetrics(&metrics);
scaledSpacing = SkScalarMul(fontHeight, fSpacingMul) + fSpacingAdd;
height = fBox.height();
// compute Y position for first line
{
SkScalar textHeight = fontHeight;
if (fMode == kLineBreak_Mode && fSpacingAlign != kStart_SpacingAlign) {
int count = SkTextLineBreaker::CountLines(text, textStop - text, paint, marginWidth);
SkASSERT(count > 0);
textHeight += scaledSpacing * (count - 1);
}
switch (fSpacingAlign) {
case kStart_SpacingAlign:
y = 0;
break;
case kCenter_SpacingAlign:
y = SkScalarHalf(height - textHeight);
break;
default:
SkASSERT(fSpacingAlign == kEnd_SpacingAlign);
y = height - textHeight;
break;
}
y += fBox.fTop - metrics.fAscent;
}
for (;;) {
size_t trailing;
len = linebreak(text, textStop, paint, marginWidth, &trailing);
if (y + metrics.fDescent + metrics.fLeading > 0) {
visitor(text, len - trailing, x, y, paint);
}
text += len;
if (text >= textStop) {
break;
}
y += scaledSpacing;
if (y + metrics.fAscent >= fBox.fBottom) {
break;
}
}
return y + metrics.fDescent + metrics.fLeading;
}
void GrStencilAndCoverTextContext::onDrawText(GrDrawContext* drawContext, GrRenderTarget* rt,
const GrClip& clip,
const GrPaint& paint,
const SkPaint& skPaint,
const SkMatrix& viewMatrix,
const char text[],
size_t byteLength,
SkScalar x, SkScalar y,
const SkIRect& regionClipBounds) {
SkASSERT(byteLength == 0 || text != NULL);
if (text == NULL || byteLength == 0 /*|| fRC->isEmpty()*/) {
return;
}
// This is the slow path, mainly used by Skia unit tests. The other
// backends (8888, gpu, ...) use device-space dependent glyph caches. In
// order to match the glyph positions that the other code paths produce, we
// must also use device-space dependent glyph cache. This has the
// side-effect that the glyph shape outline will be in device-space,
// too. This in turn has the side-effect that NVPR can not stroke the paths,
// as the stroke in NVPR is defined in object-space.
// NOTE: here we have following coincidence that works at the moment:
// - When using the device-space glyphs, the transforms we pass to NVPR
// instanced drawing are the global transforms, and the view transform is
// identity. NVPR can not use non-affine transforms in the instanced
// drawing. This is taken care of by SkDraw::ShouldDrawTextAsPaths since it
// will turn off the use of device-space glyphs when perspective transforms
// are in use.
this->init(rt, clip, paint, skPaint, byteLength, kMaxAccuracy_RenderMode, viewMatrix,
regionClipBounds);
// Transform our starting point.
if (fUsingDeviceSpaceGlyphs) {
SkPoint loc;
fContextInitialMatrix.mapXY(x, y, &loc);
x = loc.fX;
y = loc.fY;
}
SkDrawCacheProc glyphCacheProc = fSkPaint.getDrawCacheProc();
const char* stop = text + byteLength;
// Measure first if needed.
if (fSkPaint.getTextAlign() != SkPaint::kLeft_Align) {
SkFixed stopX = 0;
SkFixed stopY = 0;
const char* textPtr = text;
while (textPtr < stop) {
// We don't need x, y here, since all subpixel variants will have the
// same advance.
const SkGlyph& glyph = glyphCacheProc(fGlyphCache, &textPtr, 0, 0);
stopX += glyph.fAdvanceX;
stopY += glyph.fAdvanceY;
}
SkASSERT(textPtr == stop);
SkScalar alignX = SkFixedToScalar(stopX) * fTextRatio;
SkScalar alignY = SkFixedToScalar(stopY) * fTextRatio;
if (fSkPaint.getTextAlign() == SkPaint::kCenter_Align) {
alignX = SkScalarHalf(alignX);
alignY = SkScalarHalf(alignY);
}
x -= alignX;
y -= alignY;
}
SkAutoKern autokern;
SkFixed fixedSizeRatio = SkScalarToFixed(fTextRatio);
SkFixed fx = SkScalarToFixed(x);
SkFixed fy = SkScalarToFixed(y);
while (text < stop) {
const SkGlyph& glyph = glyphCacheProc(fGlyphCache, &text, 0, 0);
fx += SkFixedMul(autokern.adjust(glyph), fixedSizeRatio);
if (glyph.fWidth) {
this->appendGlyph(drawContext, glyph,
SkPoint::Make(SkFixedToScalar(fx), SkFixedToScalar(fy)));
}
fx += SkFixedMul(glyph.fAdvanceX, fixedSizeRatio);
fy += SkFixedMul(glyph.fAdvanceY, fixedSizeRatio);
}
this->finish(drawContext);
}
void GrBitmapTextContext::onDrawText(GrRenderTarget* rt, const GrClip& clip,
const GrPaint& paint, const SkPaint& skPaint,
const SkMatrix& viewMatrix,
const char text[], size_t byteLength,
SkScalar x, SkScalar y) {
SkASSERT(byteLength == 0 || text != NULL);
// nothing to draw
if (text == NULL || byteLength == 0 /*|| fRC->isEmpty()*/) {
return;
}
this->init(rt, clip, paint, skPaint);
SkDrawCacheProc glyphCacheProc = fSkPaint.getDrawCacheProc();
SkAutoGlyphCache autoCache(fSkPaint, &fDeviceProperties, &viewMatrix);
SkGlyphCache* cache = autoCache.getCache();
GrFontScaler* fontScaler = GetGrFontScaler(cache);
// transform our starting point
{
SkPoint loc;
viewMatrix.mapXY(x, y, &loc);
x = loc.fX;
y = loc.fY;
}
// need to measure first
int numGlyphs;
if (fSkPaint.getTextAlign() != SkPaint::kLeft_Align) {
SkVector stopVector;
numGlyphs = MeasureText(cache, glyphCacheProc, text, byteLength, &stopVector);
SkScalar stopX = stopVector.fX;
SkScalar stopY = stopVector.fY;
if (fSkPaint.getTextAlign() == SkPaint::kCenter_Align) {
stopX = SkScalarHalf(stopX);
stopY = SkScalarHalf(stopY);
}
x -= stopX;
y -= stopY;
} else {
numGlyphs = fSkPaint.textToGlyphs(text, byteLength, NULL);
}
fTotalVertexCount = kVerticesPerGlyph*numGlyphs;
const char* stop = text + byteLength;
SkAutoKern autokern;
SkFixed fxMask = ~0;
SkFixed fyMask = ~0;
SkScalar halfSampleX, halfSampleY;
if (cache->isSubpixel()) {
halfSampleX = halfSampleY = SkFixedToScalar(SkGlyph::kSubpixelRound);
SkAxisAlignment baseline = SkComputeAxisAlignmentForHText(viewMatrix);
if (kX_SkAxisAlignment == baseline) {
fyMask = 0;
halfSampleY = SK_ScalarHalf;
} else if (kY_SkAxisAlignment == baseline) {
fxMask = 0;
halfSampleX = SK_ScalarHalf;
}
} else {
halfSampleX = halfSampleY = SK_ScalarHalf;
}
Sk48Dot16 fx = SkScalarTo48Dot16(x + halfSampleX);
Sk48Dot16 fy = SkScalarTo48Dot16(y + halfSampleY);
// if we have RGB, then we won't have any SkShaders so no need to use a localmatrix, but for
// performance reasons we just invert here instead
if (!viewMatrix.invert(&fLocalMatrix)) {
SkDebugf("Cannot invert viewmatrix\n");
return;
}
while (text < stop) {
const SkGlyph& glyph = glyphCacheProc(cache, &text, fx & fxMask, fy & fyMask);
fx += autokern.adjust(glyph);
if (glyph.fWidth) {
this->appendGlyph(GrGlyph::Pack(glyph.getGlyphID(),
glyph.getSubXFixed(),
glyph.getSubYFixed(),
GrGlyph::kCoverage_MaskStyle),
Sk48Dot16FloorToInt(fx),
Sk48Dot16FloorToInt(fy),
fontScaler);
}
fx += glyph.fAdvanceX;
fy += glyph.fAdvanceY;
}
this->finish();
}
// Test out the basic API entry points
static void test_round_rect_basic(skiatest::Reporter* reporter) {
// Test out initialization methods
SkPoint zeroPt = { 0, 0 };
SkRRect empty;
empty.setEmpty();
REPORTER_ASSERT(reporter, SkRRect::kEmpty_Type == empty.type());
REPORTER_ASSERT(reporter, empty.rect().isEmpty());
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, zeroPt == empty.radii((SkRRect::Corner) i));
}
//----
SkRect rect = SkRect::MakeLTRB(0, 0, kWidth, kHeight);
SkRRect rr1;
rr1.setRect(rect);
REPORTER_ASSERT(reporter, SkRRect::kRect_Type == rr1.type());
REPORTER_ASSERT(reporter, rr1.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, zeroPt == rr1.radii((SkRRect::Corner) i));
}
//----
SkPoint halfPoint = { SkScalarHalf(kWidth), SkScalarHalf(kHeight) };
SkRRect rr2;
rr2.setOval(rect);
REPORTER_ASSERT(reporter, SkRRect::kOval_Type == rr2.type());
REPORTER_ASSERT(reporter, rr2.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter,
rr2.radii((SkRRect::Corner) i).equalsWithinTolerance(halfPoint));
}
//----
SkPoint p = { 5, 5 };
SkRRect rr3;
rr3.setRectXY(rect, p.fX, p.fY);
REPORTER_ASSERT(reporter, SkRRect::kSimple_Type == rr3.type());
REPORTER_ASSERT(reporter, rr3.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, p == rr3.radii((SkRRect::Corner) i));
}
//----
SkPoint radii[4] = { { 5, 5 }, { 5, 5 }, { 5, 5 }, { 5, 5 } };
SkRRect rr4;
rr4.setRectRadii(rect, radii);
REPORTER_ASSERT(reporter, SkRRect::kSimple_Type == rr4.type());
REPORTER_ASSERT(reporter, rr4.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, radii[i] == rr4.radii((SkRRect::Corner) i));
}
//----
SkPoint radii2[4] = { { 0, 0 }, { 0, 0 }, { 50, 50 }, { 20, 50 } };
SkRRect rr5;
rr5.setRectRadii(rect, radii2);
REPORTER_ASSERT(reporter, SkRRect::kComplex_Type == rr5.type());
REPORTER_ASSERT(reporter, rr5.rect() == rect);
for (int i = 0; i < 4; ++i) {
REPORTER_ASSERT(reporter, radii2[i] == rr5.radii((SkRRect::Corner) i));
}
// Test out == & !=
REPORTER_ASSERT(reporter, empty != rr3);
REPORTER_ASSERT(reporter, rr3 == rr4);
REPORTER_ASSERT(reporter, rr4 != rr5);
}
bool GrStrokePathRenderer::onDrawPath(const SkPath& origPath,
const SkStrokeRec& stroke,
GrDrawTarget* target,
bool antiAlias) {
if (origPath.isEmpty()) {
return true;
}
SkScalar width = stroke.getWidth();
if (width <= 0) {
return false;
}
// Get the join type
SkPaint::Join join = stroke.getJoin();
SkScalar miterLimit = stroke.getMiter();
SkScalar sqMiterLimit = SkScalarMul(miterLimit, miterLimit);
if ((join == SkPaint::kMiter_Join) && (miterLimit <= SK_Scalar1)) {
// If the miter limit is small, treat it as a bevel join
join = SkPaint::kBevel_Join;
}
const bool isMiter = (join == SkPaint::kMiter_Join);
const bool isBevel = (join == SkPaint::kBevel_Join);
SkScalar invMiterLimit = isMiter ? SK_Scalar1 / miterLimit : 0;
SkScalar invMiterLimitSq = SkScalarMul(invMiterLimit, invMiterLimit);
// Allocate vertices
const int nbQuads = origPath.countPoints() + 1; // Could be "-1" if path is not closed
const int extraVerts = isMiter || isBevel ? 1 : 0;
const int maxVertexCount = nbQuads * (4 + extraVerts);
const int maxIndexCount = nbQuads * (6 + extraVerts * 3); // Each extra vert adds a triangle
target->drawState()->setDefaultVertexAttribs();
GrDrawTarget::AutoReleaseGeometry arg(target, maxVertexCount, maxIndexCount);
if (!arg.succeeded()) {
return false;
}
SkPoint* verts = reinterpret_cast<SkPoint*>(arg.vertices());
uint16_t* idxs = reinterpret_cast<uint16_t*>(arg.indices());
int vCount = 0, iCount = 0;
// Transform the path into a list of triangles
SkPath::Iter iter(origPath, false);
SkPoint pts[4];
const SkScalar radius = SkScalarMul(width, 0.5f);
SkPoint *firstPt = verts, *lastPt = NULL;
SkVector firstDir, dir;
firstDir.set(0, 0);
dir.set(0, 0);
bool isOpen = true;
for(SkPath::Verb v = iter.next(pts); v != SkPath::kDone_Verb; v = iter.next(pts)) {
switch(v) {
case SkPath::kMove_Verb:
// This will already be handled as pts[0] of the 1st line
break;
case SkPath::kClose_Verb:
isOpen = (lastPt == NULL);
break;
case SkPath::kLine_Verb:
{
SkVector v0 = dir;
dir = pts[1] - pts[0];
if (dir.setLength(radius)) {
SkVector dirT;
dirT.set(dir.fY, -dir.fX); // Get perpendicular direction
SkPoint l1a = pts[0]+dirT, l1b = pts[1]+dirT,
l2a = pts[0]-dirT, l2b = pts[1]-dirT;
SkPoint miterPt[2];
bool useMiterPoint = false;
int idx0(-1), idx1(-1);
if (NULL == lastPt) {
firstDir = dir;
} else {
SkVector v1 = dir;
if (v0.normalize() && v1.normalize()) {
SkScalar dotProd = v0.dot(v1);
// No need for bevel or miter join if the angle
// is either 0 or 180 degrees
if (!SkScalarNearlyZero(dotProd + SK_Scalar1) &&
!SkScalarNearlyZero(dotProd - SK_Scalar1)) {
bool ccw = !is_clockwise(v0, v1);
int offset = ccw ? 1 : 0;
idx0 = vCount-2+offset;
idx1 = vCount+offset;
const SkPoint* pt0 = &(lastPt[offset]);
const SkPoint* pt1 = ccw ? &l2a : &l1a;
switch(join) {
case SkPaint::kMiter_Join:
{
// *Note : Logic is from MiterJoiner
// FIXME : Special case if we have a right angle ?
// if (SkScalarNearlyZero(dotProd)) {...}
SkScalar sinHalfAngleSq =
SkScalarHalf(SK_Scalar1 + dotProd);
if (sinHalfAngleSq >= invMiterLimitSq) {
// Find the miter point (or points if it is further
// than the miter limit)
const SkPoint pt2 = *pt0+v0, pt3 = *pt1+v1;
if (intersection(*pt0, pt2, *pt1, pt3, miterPt[0]) !=
kNone_IntersectionType) {
SkPoint miterPt0 = miterPt[0] - *pt0;
SkPoint miterPt1 = miterPt[0] - *pt1;
SkScalar sqDist0 = miterPt0.dot(miterPt0);
SkScalar sqDist1 = miterPt1.dot(miterPt1);
const SkScalar rSq =
SkScalarDiv(SkScalarMul(radius, radius),
sinHalfAngleSq);
const SkScalar sqRLimit =
SkScalarMul(sqMiterLimit, rSq);
if (sqDist0 > sqRLimit || sqDist1 > sqRLimit) {
if (sqDist1 > sqRLimit) {
v1.setLength(SkScalarSqrt(sqRLimit));
miterPt[1] = *pt1+v1;
} else {
miterPt[1] = miterPt[0];
}
if (sqDist0 > sqRLimit) {
v0.setLength(SkScalarSqrt(sqRLimit));
miterPt[0] = *pt0+v0;
}
} else {
miterPt[1] = miterPt[0];
}
useMiterPoint = true;
}
}
if (useMiterPoint && (miterPt[1] == miterPt[0])) {
break;
}
}
default:
case SkPaint::kBevel_Join:
{
// Note : This currently causes some overdraw where both
// lines initially intersect. We'd need to add
// another line intersection check here if the
// overdraw becomes an issue instead of using the
// current point directly.
// Add center point
*verts++ = pts[0]; // Use current point directly
// This idx is passed the current point so increment it
++idx1;
// Add center triangle
*idxs++ = idx0;
*idxs++ = vCount;
*idxs++ = idx1;
vCount++;
iCount += 3;
}
break;
}
}
}
}
*verts++ = l1a;
*verts++ = l2a;
lastPt = verts;
*verts++ = l1b;
*verts++ = l2b;
if (useMiterPoint && (idx0 >= 0) && (idx1 >= 0)) {
firstPt[idx0] = miterPt[0];
firstPt[idx1] = miterPt[1];
}
// 1st triangle
*idxs++ = vCount+0;
*idxs++ = vCount+2;
*idxs++ = vCount+1;
// 2nd triangle
*idxs++ = vCount+1;
*idxs++ = vCount+2;
*idxs++ = vCount+3;
vCount += 4;
iCount += 6;
}
}
break;
case SkPath::kQuad_Verb:
case SkPath::kCubic_Verb:
SkDEBUGFAIL("Curves not supported!");
default:
// Unhandled cases
SkASSERT(false);
}
}
if (isOpen) {
// Add caps
switch (stroke.getCap()) {
case SkPaint::kSquare_Cap:
firstPt[0] -= firstDir;
firstPt[1] -= firstDir;
lastPt [0] += dir;
lastPt [1] += dir;
break;
case SkPaint::kRound_Cap:
SkDEBUGFAIL("Round caps not supported!");
default: // No cap
break;
}
}
SkASSERT(vCount <= maxVertexCount);
SkASSERT(iCount <= maxIndexCount);
if (vCount > 0) {
target->drawIndexed(kTriangles_GrPrimitiveType,
0, // start vertex
0, // start index
vCount,
iCount);
}
return true;
}
void onOnceBeforeDraw() override {
{
SkPath* lineAnglesPath = &fPaths.push_back();
enum {
kNumAngles = 15,
kRadius = 40,
};
for (int i = 0; i < kNumAngles; ++i) {
SkScalar angle = SK_ScalarPI * SkIntToScalar(i) / kNumAngles;
SkScalar x = kRadius * SkScalarCos(angle);
SkScalar y = kRadius * SkScalarSin(angle);
lineAnglesPath->moveTo(x, y);
lineAnglesPath->lineTo(-x, -y);
}
}
{
SkPath* kindaTightQuad = &fPaths.push_back();
kindaTightQuad->moveTo(0, -10 * SK_Scalar1);
kindaTightQuad->quadTo(SkIntToScalar(100), SkIntToScalar(100), -10 * SK_Scalar1, 0);
}
{
SkPath* tightQuad = &fPaths.push_back();
tightQuad->moveTo(0, -5 * SK_Scalar1);
tightQuad->quadTo(SkIntToScalar(100), SkIntToScalar(100), -5 * SK_Scalar1, 0);
}
{
SkPath* tighterQuad = &fPaths.push_back();
tighterQuad->moveTo(0, -2 * SK_Scalar1);
tighterQuad->quadTo(SkIntToScalar(100), SkIntToScalar(100), -2 * SK_Scalar1, 0);
}
{
SkPath* unevenTighterQuad = &fPaths.push_back();
unevenTighterQuad->moveTo(0, -1 * SK_Scalar1);
SkPoint p;
p.set(-2 * SK_Scalar1 + 3 * SkIntToScalar(102) / 4, SkIntToScalar(75));
unevenTighterQuad->quadTo(SkIntToScalar(100), SkIntToScalar(100), p.fX, p.fY);
}
{
SkPath* reallyTightQuad = &fPaths.push_back();
reallyTightQuad->moveTo(0, -1 * SK_Scalar1);
reallyTightQuad->quadTo(SkIntToScalar(100), SkIntToScalar(100), -1 * SK_Scalar1, 0);
}
{
SkPath* closedQuad = &fPaths.push_back();
closedQuad->moveTo(0, -0);
closedQuad->quadTo(SkIntToScalar(100), SkIntToScalar(100), 0, 0);
}
{
SkPath* unevenClosedQuad = &fPaths.push_back();
unevenClosedQuad->moveTo(0, -0);
unevenClosedQuad->quadTo(SkIntToScalar(100), SkIntToScalar(100),
SkIntToScalar(75), SkIntToScalar(75));
}
// Two problem cases for gpu hairline renderer found by shapeops testing. These used
// to assert that the computed bounding box didn't contain all the vertices.
{
SkPath* problem1 = &fPaths.push_back();
problem1->moveTo(SkIntToScalar(4), SkIntToScalar(6));
problem1->cubicTo(SkIntToScalar(5), SkIntToScalar(6),
SkIntToScalar(5), SkIntToScalar(4),
SkIntToScalar(4), SkIntToScalar(0));
problem1->close();
}
{
SkPath* problem2 = &fPaths.push_back();
problem2->moveTo(SkIntToScalar(5), SkIntToScalar(1));
problem2->lineTo(4.32787323f, 1.67212653f);
problem2->cubicTo(2.75223875f, 3.24776125f,
3.00581908f, 4.51236057f,
3.7580452f, 4.37367964f);
problem2->cubicTo(4.66472578f, 3.888381f,
5.f, 2.875f,
5.f, 1.f);
problem2->close();
}
// Three paths that show the same bug (missing end caps)
{
// A caret (crbug.com/131770)
SkPath* bug0 = &fPaths.push_back();
bug0->moveTo(6.5f,5.5f);
bug0->lineTo(3.5f,0.5f);
bug0->moveTo(0.5f,5.5f);
bug0->lineTo(3.5f,0.5f);
}
{
// An X (crbug.com/137317)
SkPath* bug1 = &fPaths.push_back();
bug1->moveTo(1, 1);
bug1->lineTo(6, 6);
bug1->moveTo(1, 6);
bug1->lineTo(6, 1);
}
{
// A right angle (crbug.com/137465 and crbug.com/256776)
SkPath* bug2 = &fPaths.push_back();
bug2->moveTo(5.5f, 5.5f);
bug2->lineTo(5.5f, 0.5f);
bug2->lineTo(0.5f, 0.5f);
}
{
// Arc example to test imperfect truncation bug (crbug.com/295626)
static const SkScalar kRad = SkIntToScalar(2000);
static const SkScalar kStartAngle = 262.59717f;
static const SkScalar kSweepAngle = SkScalarHalf(17.188717f);
SkPath* bug = &fPaths.push_back();
// Add a circular arc
SkRect circle = SkRect::MakeLTRB(-kRad, -kRad, kRad, kRad);
bug->addArc(circle, kStartAngle, kSweepAngle);
// Now add the chord that should cap the circular arc
SkScalar cosV, sinV = SkScalarSinCos(SkDegreesToRadians(kStartAngle), &cosV);
SkPoint p0 = SkPoint::Make(kRad * cosV, kRad * sinV);
sinV = SkScalarSinCos(SkDegreesToRadians(kStartAngle + kSweepAngle), &cosV);
SkPoint p1 = SkPoint::Make(kRad * cosV, kRad * sinV);
bug->moveTo(p0);
bug->lineTo(p1);
}
}
void PlatformGraphicsContextSkia::drawLine(const IntPoint& point1,
const IntPoint& point2)
{
StrokeStyle style = m_state->strokeStyle;
if (style == NoStroke)
return;
SkPaint paint;
SkCanvas* canvas = mCanvas;
const int idx = SkAbs32(point2.x() - point1.x());
const int idy = SkAbs32(point2.y() - point1.y());
// Special-case horizontal and vertical lines that are really just dots
if (setupPaintStroke(&paint, 0, !idy) && (!idx || !idy)) {
const SkScalar diameter = paint.getStrokeWidth();
const SkScalar radius = SkScalarHalf(diameter);
SkScalar x = SkIntToScalar(SkMin32(point1.x(), point2.x()));
SkScalar y = SkIntToScalar(SkMin32(point1.y(), point2.y()));
SkScalar dx, dy;
int count;
SkRect bounds;
if (!idy) { // Horizontal
bounds.set(x, y - radius, x + SkIntToScalar(idx), y + radius);
x += radius;
dx = diameter * 2;
dy = 0;
count = idx;
} else { // Vertical
bounds.set(x - radius, y, x + radius, y + SkIntToScalar(idy));
y += radius;
dx = 0;
dy = diameter * 2;
count = idy;
}
// The actual count is the number of ONs we hit alternating
// ON(diameter), OFF(diameter), ...
{
SkScalar width = SkScalarDiv(SkIntToScalar(count), diameter);
// Now compute the number of cells (ON and OFF)
count = SkScalarRound(width);
// Now compute the number of ONs
count = (count + 1) >> 1;
}
SkAutoMalloc storage(count * sizeof(SkPoint));
SkPoint* verts = (SkPoint*)storage.get();
// Now build the array of vertices to past to drawPoints
for (int i = 0; i < count; i++) {
verts[i].set(x, y);
x += dx;
y += dy;
}
paint.setStyle(SkPaint::kFill_Style);
paint.setPathEffect(0);
// Clipping to bounds is not required for correctness, but it does
// allow us to reject the entire array of points if we are completely
// offscreen. This is common in a webpage for android, where most of
// the content is clipped out. If drawPoints took an (optional) bounds
// parameter, that might even be better, as we would *just* use it for
// culling, and not both wacking the canvas' save/restore stack.
canvas->save(SkCanvas::kClip_SaveFlag);
canvas->clipRect(bounds);
canvas->drawPoints(SkCanvas::kPoints_PointMode, count, verts, paint);
canvas->restore();
} else {
// Currently asPoints is more restrictive then it needs to be. In the future
// we need to:
// allow kRound_Cap capping (could allow rotations in the matrix with this)
// allow paths to be returned
bool SkDashPathEffect::asPoints(PointData* results,
const SkPath& src,
const SkStrokeRec& rec,
const SkMatrix& matrix,
const SkRect* cullRect) const {
// width < 0 -> fill && width == 0 -> hairline so requiring width > 0 rules both out
if (fInitialDashLength < 0 || 0 >= rec.getWidth()) {
return false;
}
// TODO: this next test could be eased up. We could allow any number of
// intervals as long as all the ons match and all the offs match.
// Additionally, they do not necessarily need to be integers.
// We cannot allow arbitrary intervals since we want the returned points
// to be uniformly sized.
if (fCount != 2 ||
!SkScalarNearlyEqual(fIntervals[0], fIntervals[1]) ||
!SkScalarIsInt(fIntervals[0]) ||
!SkScalarIsInt(fIntervals[1])) {
return false;
}
SkPoint pts[2];
if (!src.isLine(pts)) {
return false;
}
// TODO: this test could be eased up to allow circles
if (SkPaint::kButt_Cap != rec.getCap()) {
return false;
}
// TODO: this test could be eased up for circles. Rotations could be allowed.
if (!matrix.rectStaysRect()) {
return false;
}
// See if the line can be limited to something plausible.
if (!cull_line(pts, rec, matrix, cullRect, fIntervalLength)) {
return false;
}
SkScalar length = SkPoint::Distance(pts[1], pts[0]);
SkVector tangent = pts[1] - pts[0];
if (tangent.isZero()) {
return false;
}
tangent.scale(SkScalarInvert(length));
// TODO: make this test for horizontal & vertical lines more robust
bool isXAxis = true;
if (SkScalarNearlyEqual(SK_Scalar1, tangent.fX) ||
SkScalarNearlyEqual(-SK_Scalar1, tangent.fX)) {
results->fSize.set(SkScalarHalf(fIntervals[0]), SkScalarHalf(rec.getWidth()));
} else if (SkScalarNearlyEqual(SK_Scalar1, tangent.fY) ||
SkScalarNearlyEqual(-SK_Scalar1, tangent.fY)) {
results->fSize.set(SkScalarHalf(rec.getWidth()), SkScalarHalf(fIntervals[0]));
isXAxis = false;
} else if (SkPaint::kRound_Cap != rec.getCap()) {
// Angled lines don't have axis-aligned boxes.
return false;
}
if (results) {
results->fFlags = 0;
SkScalar clampedInitialDashLength = SkMinScalar(length, fInitialDashLength);
if (SkPaint::kRound_Cap == rec.getCap()) {
results->fFlags |= PointData::kCircles_PointFlag;
}
results->fNumPoints = 0;
SkScalar len2 = length;
if (clampedInitialDashLength > 0 || 0 == fInitialDashIndex) {
SkASSERT(len2 >= clampedInitialDashLength);
if (0 == fInitialDashIndex) {
if (clampedInitialDashLength > 0) {
if (clampedInitialDashLength >= fIntervals[0]) {
++results->fNumPoints; // partial first dash
}
len2 -= clampedInitialDashLength;
}
len2 -= fIntervals[1]; // also skip first space
if (len2 < 0) {
len2 = 0;
}
} else {
len2 -= clampedInitialDashLength; // skip initial partial empty
}
}
int numMidPoints = SkScalarFloorToInt(len2 / fIntervalLength);
results->fNumPoints += numMidPoints;
len2 -= numMidPoints * fIntervalLength;
bool partialLast = false;
if (len2 > 0) {
if (len2 < fIntervals[0]) {
partialLast = true;
} else {
++numMidPoints;
++results->fNumPoints;
}
}
results->fPoints = new SkPoint[results->fNumPoints];
SkScalar distance = 0;
int curPt = 0;
if (clampedInitialDashLength > 0 || 0 == fInitialDashIndex) {
SkASSERT(clampedInitialDashLength <= length);
if (0 == fInitialDashIndex) {
if (clampedInitialDashLength > 0) {
// partial first block
SkASSERT(SkPaint::kRound_Cap != rec.getCap()); // can't handle partial circles
SkScalar x = pts[0].fX + SkScalarMul(tangent.fX, SkScalarHalf(clampedInitialDashLength));
SkScalar y = pts[0].fY + SkScalarMul(tangent.fY, SkScalarHalf(clampedInitialDashLength));
SkScalar halfWidth, halfHeight;
if (isXAxis) {
halfWidth = SkScalarHalf(clampedInitialDashLength);
halfHeight = SkScalarHalf(rec.getWidth());
} else {
halfWidth = SkScalarHalf(rec.getWidth());
halfHeight = SkScalarHalf(clampedInitialDashLength);
}
if (clampedInitialDashLength < fIntervals[0]) {
// This one will not be like the others
results->fFirst.addRect(x - halfWidth, y - halfHeight,
x + halfWidth, y + halfHeight);
} else {
SkASSERT(curPt < results->fNumPoints);
results->fPoints[curPt].set(x, y);
++curPt;
}
distance += clampedInitialDashLength;
}
distance += fIntervals[1]; // skip over the next blank block too
} else {
distance += clampedInitialDashLength;
}
}
if (0 != numMidPoints) {
distance += SkScalarHalf(fIntervals[0]);
for (int i = 0; i < numMidPoints; ++i) {
SkScalar x = pts[0].fX + SkScalarMul(tangent.fX, distance);
SkScalar y = pts[0].fY + SkScalarMul(tangent.fY, distance);
SkASSERT(curPt < results->fNumPoints);
results->fPoints[curPt].set(x, y);
++curPt;
distance += fIntervalLength;
}
distance -= SkScalarHalf(fIntervals[0]);
}
if (partialLast) {
// partial final block
SkASSERT(SkPaint::kRound_Cap != rec.getCap()); // can't handle partial circles
SkScalar temp = length - distance;
SkASSERT(temp < fIntervals[0]);
SkScalar x = pts[0].fX + SkScalarMul(tangent.fX, distance + SkScalarHalf(temp));
SkScalar y = pts[0].fY + SkScalarMul(tangent.fY, distance + SkScalarHalf(temp));
SkScalar halfWidth, halfHeight;
if (isXAxis) {
halfWidth = SkScalarHalf(temp);
halfHeight = SkScalarHalf(rec.getWidth());
} else {
halfWidth = SkScalarHalf(rec.getWidth());
halfHeight = SkScalarHalf(temp);
}
results->fLast.addRect(x - halfWidth, y - halfHeight,
x + halfWidth, y + halfHeight);
}
SkASSERT(curPt == results->fNumPoints);
}
return true;
}
void RenderSkinMediaButton::Draw(SkCanvas* canvas, const IntRect& r,
MediaButton buttonType, bool translucent,
bool drawBackground, const IntRect& thumb)//4.2 Merge
{
if (!gDecoded) {
Decode();
}
if (!canvas)
return;
// If we failed to decode, do nothing. This way the browser still works,
// and webkit will still draw the label and layout space for us.
if (gDecodingFailed)
return;
bool drawsNinePatch = false;
bool drawsImage = true;
int ninePatchIndex = 0;
int imageIndex = 0;
SkRect bounds(r);
SkScalar imageMargin = 8;
SkPaint paint;
int alpha = 255;
if (translucent)
alpha = 190;
SkColor backgroundColor = SkColorSetARGB(alpha, 34, 34, 34);
SkColor trackBackgroundColor = SkColorSetARGB(255, 100, 100, 100);
paint.setColor(backgroundColor);
//Android KITKAT Merge - START
// paint.setFlags(SkPaint::kFilterBitmap_Flag);
//P140210-04273 :
// In D2 Device if we pass kMedium_FilterLevel image gets corrupted while drawing the image into the canvas. So loading icons was corrupting
// kLow_FilterLevel works for other kitkat devices.
//WAS paint.setFilterLevel(SkPaint::kMedium_FilterLevel);
paint.setFilterLevel(SkPaint::kLow_FilterLevel);
//Android KITKAT Merge - END
switch (buttonType) {
case PAUSE:
case PLAY:
case MUTE:
case REWIND:
case FORWARD:
case FULLSCREEN:
{
imageIndex = buttonType + 1;
paint.setColor(backgroundColor);
break;
}
case SPINNER_OUTER:
case SPINNER_INNER:
case VIDEO:
{
imageIndex = buttonType + 1;
break;
}
case BACKGROUND_SLIDER:
{
drawsImage = false;
break;
}
case SLIDER_TRACK:
{
drawsNinePatch = true;
drawsImage = false;
ninePatchIndex = buttonType + 1;
break;
}
case SLIDER_THUMB:
{
imageMargin = 0;
imageIndex = buttonType + 1;
break;
}
default:
return;
}
if (drawBackground) {
canvas->drawRect(r, paint);
}
if (drawsNinePatch) {
const PatchData& pd = gFiles[ninePatchIndex];
int marginValue = pd.margin + pd.outset;
SkIRect margin;
margin.set(marginValue, marginValue, marginValue, marginValue);
if (buttonType == SLIDER_TRACK) {
// Cut the height in half (with some extra slop determined by trial
// and error to get the placement just right.
SkScalar quarterHeight = SkScalarHalf(SkScalarHalf(bounds.height()));
bounds.fTop += quarterHeight + SkScalarHalf(3);
bounds.fBottom += -quarterHeight + SK_ScalarHalf;
if (!thumb.isEmpty()) {//4.2 Merge
// Inset the track by half the width of the thumb, so the track
// does not appear to go beyond the space where the thumb can
// be.
SkScalar thumbHalfWidth = SkIntToScalar(thumb.width()/2);
bounds.fLeft += thumbHalfWidth;
bounds.fRight -= thumbHalfWidth;
if (thumb.x() > 0) {
// The video is past the starting point. Show the area to
// left of the thumb as having been played.
SkScalar alreadyPlayed = SkIntToScalar(thumb.center().x() + r.x());
SkRect playedRect(bounds);
playedRect.fRight = alreadyPlayed;
SkNinePatch::DrawNine(canvas, playedRect, gButton[0], margin);
bounds.fLeft = alreadyPlayed;
}
}
}
SkNinePatch::DrawNine(canvas, bounds, gButton[ninePatchIndex], margin);
}
if (drawsImage) {
SkScalar SIZE = gButton[imageIndex].width();
SkScalar width = r.width();
SkScalar scale = SkScalarDiv(width - 2*imageMargin, SIZE);
int saveScaleCount = canvas->save();
canvas->translate(bounds.fLeft + imageMargin, bounds.fTop + imageMargin);
canvas->scale(scale, scale);
canvas->drawBitmap(gButton[imageIndex], 0, 0, &paint);
canvas->restoreToCount(saveScaleCount);
}
}
