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- /*
- * 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<SkNWayCanvas>(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<SkSurface> 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);
- }
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