PDF: Remove SkPDFDeviceFlattener

src/pdf/SkPDFDeviceFlattener.cpp

-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkPDFDeviceFlattener.h"
-#include "SkDraw.h"
-
-static SkISize SkSizeToISize(const SkSize& size) {
-    return SkISize::Make(SkScalarRoundToInt(size.width()), SkScalarRoundToInt(size.height()));
-}
-
-SkPDFDeviceFlattener::SkPDFDeviceFlattener(const SkSize& pageSize, const SkRect* trimBox)
-            : SkPDFDevice(SkSizeToISize(pageSize),
-                          SkSizeToISize(pageSize),
-                          SkMatrix::I()) {
-    // TODO(edisonn): store the trimbox on emit.
-}
-
-SkPDFDeviceFlattener::~SkPDFDeviceFlattener() {
-}
-
-static void flattenPaint(const SkDraw& d, SkPaint* paint) {
-    if (paint->getShader()) {
-        SkAutoTUnref<SkShader> lms(SkShader::CreateLocalMatrixShader(paint->getShader(),
-                                                                     *d.fMatrix));
-        paint->setShader(lms);
-    }
-}
-
-void SkPDFDeviceFlattener::drawPoints(const SkDraw& d, SkCanvas::PointMode mode,
-                                      size_t count, const SkPoint points[],
-                                      const SkPaint& paint) {
-    if (!mustFlatten(d)) {
-        INHERITED::drawPoints(d, mode, count, points, paint);
-        return;
-    }
-
-    SkPaint paintFlatten(paint);
-    flattenPaint(d, &paintFlatten);
-
-    SkPoint* flattenedPoints = SkNEW_ARRAY(SkPoint, count);
-    d.fMatrix->mapPoints(flattenedPoints, points, SkToS32(count));
-    SkDraw draw(d);
-    SkMatrix identity = SkMatrix::I();
-    draw.fMatrix = &identity;
-    INHERITED::drawPoints(draw, mode, count, flattenedPoints, paintFlatten);
-    SkDELETE_ARRAY(flattenedPoints);
-}
-
-void SkPDFDeviceFlattener::drawRect(const SkDraw& d, const SkRect& r, const SkPaint& paint) {
-    if (!mustFlatten(d)) {
-        INHERITED::drawRect(d, r, paint);
-        return;
-    }
-
-    SkPath path;
-    path.addRect(r);
-    path.transform(*d.fMatrix);
-    SkDraw draw(d);
-    SkMatrix matrix = SkMatrix::I();
-    draw.fMatrix = &matrix;
-
-    SkPaint paintFlatten(paint);
-    flattenPaint(d, &paintFlatten);
-
-    INHERITED::drawPath(draw, path, paintFlatten, NULL, true);
-}
-
-void SkPDFDeviceFlattener::drawPath(const SkDraw& d, const SkPath& origPath,
-                                    const SkPaint& paint, const SkMatrix* prePathMatrix,
-                                    bool pathIsMutable) {
-    if (!mustFlatten(d) && !(prePathMatrix && prePathMatrix->hasPerspective())) {
-        INHERITED::drawPath(d, origPath, paint, prePathMatrix, pathIsMutable);
-        return;
-    }
-
-    SkPath* pathPtr = (SkPath*)&origPath;
-    SkPath tmpPath;
-
-    if (!pathIsMutable) {
-        tmpPath = origPath;
-        pathPtr = &tmpPath;
-    }
-
-    if (prePathMatrix) {
-        pathPtr->transform(*prePathMatrix);
-    }
-
-    SkPaint paintFlatten(paint);
-    flattenPaint(d, &paintFlatten);
-
-    bool fill = paintFlatten.getFillPath(*pathPtr, &tmpPath);
-    SkDEBUGCODE(pathPtr = (SkPath*)0x12345678);  // Don't use pathPtr after this point.
-
-    paintFlatten.setPathEffect(NULL);
-    if (fill) {
-        paintFlatten.setStyle(SkPaint::kFill_Style);
-    } else {
-        paintFlatten.setStyle(SkPaint::kStroke_Style);
-        paintFlatten.setStrokeWidth(0);
-    }
-
-    tmpPath.transform(*d.fMatrix);
-
-    SkDraw draw(d);
-    SkMatrix matrix = SkMatrix::I();
-    draw.fMatrix = &matrix;
-
-    INHERITED::drawPath(draw, tmpPath, paintFlatten, NULL, true);
-}
-
-void SkPDFDeviceFlattener::drawText(const SkDraw& d, const void* text, size_t len,
-                                    SkScalar x, SkScalar y, const SkPaint& paint) {
-    if (mustPathText(d, paint)) {
-        d.drawText_asPaths((const char*)text, len, x, y, paint);
-        return;
-    }
-
-    INHERITED::drawText(d, text, len, x, y, paint);
-}
-
-void SkPDFDeviceFlattener::drawPosText(const SkDraw& d, const void* text, size_t len,
-                                       const SkScalar pos[], int scalarsPerPos,
-                                       const SkPoint& offset, const SkPaint& paint) {
-    if (mustPathText(d, paint)) {
-        d.drawPosText_asPaths((const char*)text, len, pos, scalarsPerPos, offset, paint);
-        return;
-    }
-    INHERITED::drawPosText(d, text, len, pos, scalarsPerPos, offset, paint);
-}
-
-bool SkPDFDeviceFlattener::mustFlatten(const SkDraw& d) const {
-    // TODO(edisonn): testability, add flag to force return true.
-    return d.fMatrix->hasPerspective();
-}
-
-bool SkPDFDeviceFlattener::mustPathText(const SkDraw& d, const SkPaint&) {
-    // TODO(edisonn): testability, add flag to force return true.
-    // TODO(edisonn): TBD: How to flatten MaskFilter.
-    return d.fMatrix->hasPerspective();
-}