/* * Copyright 2015 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "include/utils/SkPaintFilterCanvas.h" #include "include/core/SkPaint.h" #include "include/core/SkPixmap.h" #include "include/core/SkSurface.h" #include "src/core/SkTLazy.h" class SkPaintFilterCanvas::AutoPaintFilter { public: AutoPaintFilter(const SkPaintFilterCanvas* canvas, const SkPaint* paint) : fPaint(paint ? *paint : SkPaint()) { fShouldDraw = canvas->onFilter(fPaint); } AutoPaintFilter(const SkPaintFilterCanvas* canvas, const SkPaint& paint) : AutoPaintFilter(canvas, &paint) { } const SkPaint& paint() const { return fPaint; } bool shouldDraw() const { return fShouldDraw; } private: SkPaint fPaint; bool fShouldDraw; }; SkPaintFilterCanvas::SkPaintFilterCanvas(SkCanvas *canvas) : SkCanvasVirtualEnforcer(canvas->imageInfo().width(), canvas->imageInfo().height()) { // Transfer matrix & clip state before adding the target canvas. this->clipRect(SkRect::Make(canvas->getDeviceClipBounds())); this->setMatrix(canvas->getTotalMatrix()); this->addCanvas(canvas); } void SkPaintFilterCanvas::onDrawPaint(const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawPaint(apf.paint()); } } void SkPaintFilterCanvas::onDrawBehind(const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawBehind(apf.paint()); } } void SkPaintFilterCanvas::onDrawPoints(PointMode mode, size_t count, const SkPoint pts[], const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawPoints(mode, count, pts, apf.paint()); } } void SkPaintFilterCanvas::onDrawRect(const SkRect& rect, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawRect(rect, apf.paint()); } } void SkPaintFilterCanvas::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawRRect(rrect, apf.paint()); } } void SkPaintFilterCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawDRRect(outer, inner, apf.paint()); } } void SkPaintFilterCanvas::onDrawRegion(const SkRegion& region, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawRegion(region, apf.paint()); } } void SkPaintFilterCanvas::onDrawOval(const SkRect& rect, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawOval(rect, apf.paint()); } } void SkPaintFilterCanvas::onDrawArc(const SkRect& rect, SkScalar startAngle, SkScalar sweepAngle, bool useCenter, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawArc(rect, startAngle, sweepAngle, useCenter, apf.paint()); } } void SkPaintFilterCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawPath(path, apf.paint()); } } void SkPaintFilterCanvas::onDrawBitmap(const SkBitmap& bm, SkScalar left, SkScalar top, const SkPaint* paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawBitmap(bm, left, top, &apf.paint()); } } void SkPaintFilterCanvas::onDrawBitmapRect(const SkBitmap& bm, const SkRect* src, const SkRect& dst, const SkPaint* paint, SrcRectConstraint constraint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawBitmapRect(bm, src, dst, &apf.paint(), constraint); } } void SkPaintFilterCanvas::onDrawBitmapNine(const SkBitmap& bm, const SkIRect& center, const SkRect& dst, const SkPaint* paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawBitmapNine(bm, center, dst, &apf.paint()); } } void SkPaintFilterCanvas::onDrawBitmapLattice(const SkBitmap& bitmap, const Lattice& lattice, const SkRect& dst, const SkPaint* paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawBitmapLattice(bitmap, lattice, dst, &apf.paint()); } } void SkPaintFilterCanvas::onDrawImage(const SkImage* image, SkScalar left, SkScalar top, const SkPaint* paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawImage(image, left, top, &apf.paint()); } } void SkPaintFilterCanvas::onDrawImageRect(const SkImage* image, const SkRect* src, const SkRect& dst, const SkPaint* paint, SrcRectConstraint constraint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawImageRect(image, src, dst, &apf.paint(), constraint); } } void SkPaintFilterCanvas::onDrawImageNine(const SkImage* image, const SkIRect& center, const SkRect& dst, const SkPaint* paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawImageNine(image, center, dst, &apf.paint()); } } void SkPaintFilterCanvas::onDrawImageLattice(const SkImage* image, const Lattice& lattice, const SkRect& dst, const SkPaint* paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawImageLattice(image, lattice, dst, &apf.paint()); } } void SkPaintFilterCanvas::onDrawVerticesObject(const SkVertices* vertices, const SkVertices::Bone bones[], int boneCount, SkBlendMode bmode, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawVerticesObject(vertices, bones, boneCount, bmode, apf.paint()); } } void SkPaintFilterCanvas::onDrawPatch(const SkPoint cubics[], const SkColor colors[], const SkPoint texCoords[], SkBlendMode bmode, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawPatch(cubics, colors, texCoords, bmode, apf.paint()); } } void SkPaintFilterCanvas::onDrawPicture(const SkPicture* picture, const SkMatrix* m, const SkPaint* paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawPicture(picture, m, &apf.paint()); } } void SkPaintFilterCanvas::onDrawDrawable(SkDrawable* drawable, const SkMatrix* matrix) { // There is no paint to filter in this case, but we can still filter on type. // Subclasses need to unroll the drawable explicity (by overriding this method) in // order to actually filter nested content. AutoPaintFilter apf(this, nullptr); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawDrawable(drawable, matrix); } } void SkPaintFilterCanvas::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y, const SkPaint& paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawTextBlob(blob, x, y, apf.paint()); } } void SkPaintFilterCanvas::onDrawAtlas(const SkImage* image, const SkRSXform xform[], const SkRect tex[], const SkColor colors[], int count, SkBlendMode bmode, const SkRect* cull, const SkPaint* paint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawAtlas(image, xform, tex, colors, count, bmode, cull, &apf.paint()); } } void SkPaintFilterCanvas::onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) { this->SkNWayCanvas::onDrawAnnotation(rect, key, value); } void SkPaintFilterCanvas::onDrawShadowRec(const SkPath& path, const SkDrawShadowRec& rec) { this->SkNWayCanvas::onDrawShadowRec(path, rec); } void SkPaintFilterCanvas::onDrawEdgeAAQuad(const SkRect& rect, const SkPoint clip[4], QuadAAFlags aa, SkColor color, SkBlendMode mode) { SkPaint paint; paint.setColor(color); paint.setBlendMode(mode); AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawEdgeAAQuad(rect, clip, aa, apf.paint().getColor(), apf.paint().getBlendMode()); } } void SkPaintFilterCanvas::onDrawEdgeAAImageSet(const ImageSetEntry set[], int count, const SkPoint dstClips[], const SkMatrix preViewMatrices[], const SkPaint* paint, SrcRectConstraint constraint) { AutoPaintFilter apf(this, paint); if (apf.shouldDraw()) { this->SkNWayCanvas::onDrawEdgeAAImageSet( set, count, dstClips, preViewMatrices, &apf.paint(), constraint); } } sk_sp SkPaintFilterCanvas::onNewSurface(const SkImageInfo& info, const SkSurfaceProps& props) { return proxy()->makeSurface(info, &props); } bool SkPaintFilterCanvas::onPeekPixels(SkPixmap* pixmap) { return proxy()->peekPixels(pixmap); } bool SkPaintFilterCanvas::onAccessTopLayerPixels(SkPixmap* pixmap) { SkImageInfo info; size_t rowBytes; void* addr = proxy()->accessTopLayerPixels(&info, &rowBytes); if (!addr) { return false; } pixmap->reset(info, addr, rowBytes); return true; } SkImageInfo SkPaintFilterCanvas::onImageInfo() const { return proxy()->imageInfo(); } bool SkPaintFilterCanvas::onGetProps(SkSurfaceProps* props) const { return proxy()->getProps(props); }