michael@0: 
michael@0: /*
michael@0:  * Copyright 2011 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: #include "SkNWayCanvas.h"
michael@0: 
michael@0: SkNWayCanvas::SkNWayCanvas(int width, int height)
michael@0:         : INHERITED(width, height) {}
michael@0: 
michael@0: SkNWayCanvas::~SkNWayCanvas() {
michael@0:     this->removeAll();
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::addCanvas(SkCanvas* canvas) {
michael@0:     if (canvas) {
michael@0:         canvas->ref();
michael@0:         *fList.append() = canvas;
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::removeCanvas(SkCanvas* canvas) {
michael@0:     int index = fList.find(canvas);
michael@0:     if (index >= 0) {
michael@0:         canvas->unref();
michael@0:         fList.removeShuffle(index);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::removeAll() {
michael@0:     fList.unrefAll();
michael@0:     fList.reset();
michael@0: }
michael@0: 
michael@0: ///////////////////////////////////////////////////////////////////////////
michael@0: // These are forwarded to the N canvases we're referencing
michael@0: 
michael@0: class SkNWayCanvas::Iter {
michael@0: public:
michael@0:     Iter(const SkTDArray<SkCanvas*>& list) : fList(list) {
michael@0:         fIndex = 0;
michael@0:     }
michael@0:     bool next() {
michael@0:         if (fIndex < fList.count()) {
michael@0:             fCanvas = fList[fIndex++];
michael@0:             return true;
michael@0:         }
michael@0:         return false;
michael@0:     }
michael@0:     SkCanvas* operator->() { return fCanvas; }
michael@0: 
michael@0: private:
michael@0:     const SkTDArray<SkCanvas*>& fList;
michael@0:     int fIndex;
michael@0:     SkCanvas* fCanvas;
michael@0: };
michael@0: 
michael@0: void SkNWayCanvas::willSave(SaveFlags flags) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->save(flags);
michael@0:     }
michael@0: 
michael@0:     this->INHERITED::willSave(flags);
michael@0: }
michael@0: 
michael@0: SkCanvas::SaveLayerStrategy SkNWayCanvas::willSaveLayer(const SkRect* bounds, const SkPaint* paint,
michael@0:                                                         SaveFlags flags) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->saveLayer(bounds, paint, flags);
michael@0:     }
michael@0: 
michael@0:     this->INHERITED::willSaveLayer(bounds, paint, flags);
michael@0:     // No need for a layer.
michael@0:     return kNoLayer_SaveLayerStrategy;
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::willRestore() {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->restore();
michael@0:     }
michael@0:     this->INHERITED::willRestore();
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::didTranslate(SkScalar dx, SkScalar dy) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->translate(dx, dy);
michael@0:     }
michael@0:     this->INHERITED::didTranslate(dx, dy);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::didScale(SkScalar sx, SkScalar sy) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->scale(sx, sy);
michael@0:     }
michael@0:     this->INHERITED::didScale(sx, sy);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::didRotate(SkScalar degrees) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->rotate(degrees);
michael@0:     }
michael@0:     this->INHERITED::didRotate(degrees);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::didSkew(SkScalar sx, SkScalar sy) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->skew(sx, sy);
michael@0:     }
michael@0:     this->INHERITED::didSkew(sx, sy);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::didConcat(const SkMatrix& matrix) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->concat(matrix);
michael@0:     }
michael@0:     this->INHERITED::didConcat(matrix);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::didSetMatrix(const SkMatrix& matrix) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->setMatrix(matrix);
michael@0:     }
michael@0:     this->INHERITED::didSetMatrix(matrix);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->clipRect(rect, op, kSoft_ClipEdgeStyle == edgeStyle);
michael@0:     }
michael@0:     this->INHERITED::onClipRect(rect, op, edgeStyle);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->clipRRect(rrect, op, kSoft_ClipEdgeStyle == edgeStyle);
michael@0:     }
michael@0:     this->INHERITED::onClipRRect(rrect, op, edgeStyle);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->clipPath(path, op, kSoft_ClipEdgeStyle == edgeStyle);
michael@0:     }
michael@0:     this->INHERITED::onClipPath(path, op, edgeStyle);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->clipRegion(deviceRgn, op);
michael@0:     }
michael@0:     this->INHERITED::onClipRegion(deviceRgn, op);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::clear(SkColor color) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->clear(color);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawPaint(const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawPaint(paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawPoints(PointMode mode, size_t count, const SkPoint pts[],
michael@0:                         const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawPoints(mode, count, pts, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawRect(const SkRect& rect, const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawRect(rect, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawOval(const SkRect& rect, const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawOval(rect, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawRRect(rrect, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner,
michael@0:                                 const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawDRRect(outer, inner, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawPath(const SkPath& path, const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawPath(path, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar x, SkScalar y,
michael@0:                               const SkPaint* paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawBitmap(bitmap, x, y, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,
michael@0:                                   const SkRect& dst, const SkPaint* paint,
michael@0:                                   DrawBitmapRectFlags flags) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawBitmapRectToRect(bitmap, src, dst, paint, flags);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
michael@0:                                     const SkPaint* paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawBitmapMatrix(bitmap, m, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
michael@0:                                   const SkRect& dst, const SkPaint* paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawBitmapNine(bitmap, center, dst, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawSprite(const SkBitmap& bitmap, int x, int y,
michael@0:                               const SkPaint* paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawSprite(bitmap, x, y, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawText(const void* text, size_t byteLength, SkScalar x,
michael@0:                             SkScalar y, const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawText(text, byteLength, x, y, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawPosText(const void* text, size_t byteLength,
michael@0:                                const SkPoint pos[], const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawPosText(text, byteLength, pos, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawPosTextH(const void* text, size_t byteLength,
michael@0:                                 const SkScalar xpos[], SkScalar constY,
michael@0:                                 const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawPosTextH(text, byteLength, xpos, constY, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawTextOnPath(const void* text, size_t byteLength,
michael@0:                                   const SkPath& path, const SkMatrix* matrix,
michael@0:                                   const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawTextOnPath(text, byteLength, path, matrix, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawPicture(SkPicture& picture) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawPicture(picture);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawVertices(VertexMode vmode, int vertexCount,
michael@0:                           const SkPoint vertices[], const SkPoint texs[],
michael@0:                           const SkColor colors[], SkXfermode* xmode,
michael@0:                           const uint16_t indices[], int indexCount,
michael@0:                           const SkPaint& paint) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawVertices(vmode, vertexCount, vertices, texs, colors, xmode,
michael@0:                            indices, indexCount, paint);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::drawData(const void* data, size_t length) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->drawData(data, length);
michael@0:     }
michael@0: }
michael@0: 
michael@0: SkBounder* SkNWayCanvas::setBounder(SkBounder* bounder) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->setBounder(bounder);
michael@0:     }
michael@0:     return this->INHERITED::setBounder(bounder);
michael@0: }
michael@0: 
michael@0: SkDrawFilter* SkNWayCanvas::setDrawFilter(SkDrawFilter* filter) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->setDrawFilter(filter);
michael@0:     }
michael@0:     return this->INHERITED::setDrawFilter(filter);
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::beginCommentGroup(const char* description) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->beginCommentGroup(description);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::addComment(const char* kywd, const char* value) {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->addComment(kywd, value);
michael@0:     }
michael@0: }
michael@0: 
michael@0: void SkNWayCanvas::endCommentGroup() {
michael@0:     Iter iter(fList);
michael@0:     while (iter.next()) {
michael@0:         iter->endCommentGroup();
michael@0:     }
michael@0: }