rename SkCanvasDrawable to SkDrawable, and make public

src/core/SkCanvasDrawable.cpp

-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "SkCanvas.h"
-#include "SkCanvasDrawable.h"
-#include "SkThread.h"
-
-static int32_t next_generation_id() {
-    static int32_t gCanvasDrawableGenerationID;
-
-    // do a loop in case our global wraps around, as we never want to
-    // return a 0
-    int32_t genID;
-    do {
-        genID = sk_atomic_inc(&gCanvasDrawableGenerationID) + 1;
-    } while (0 == genID);
-    return genID;
-}
-
-SkCanvasDrawable::SkCanvasDrawable() : fGenerationID(0) {}
-
-static void draw_bbox(SkCanvas* canvas, const SkRect& r) {
-    SkPaint paint;
-    paint.setStyle(SkPaint::kStroke_Style);
-    paint.setColor(0xFFFF7088);
-    canvas->drawRect(r, paint);
-    canvas->drawLine(r.left(), r.top(), r.right(), r.bottom(), paint);
-    canvas->drawLine(r.left(), r.bottom(), r.right(), r.top(), paint);
-}
-
-void SkCanvasDrawable::draw(SkCanvas* canvas) {
-    SkAutoCanvasRestore acr(canvas, true);
-    this->onDraw(canvas);
-
-    if (false) {
-        draw_bbox(canvas, this->getBounds());
-    }
-}
-
-SkPicture* SkCanvasDrawable::newPictureSnapshot() {
-    return this->onNewPictureSnapshot();
-}
-
-uint32_t SkCanvasDrawable::getGenerationID() {
-    if (0 == fGenerationID) {
-        fGenerationID = next_generation_id();
-    }
-    return fGenerationID;
-}
-
-SkRect SkCanvasDrawable::getBounds() {
-    return this->onGetBounds();
-}
-
-void SkCanvasDrawable::notifyDrawingChanged() {
-    fGenerationID = 0;
-}
-
-/////////////////////////////////////////////////////////////////////////////////////////
-
-#include "SkPictureRecorder.h"
-
-SkPicture* SkCanvasDrawable::onNewPictureSnapshot() {
-    SkPictureRecorder recorder;
-
-    const SkRect bounds = this->getBounds();
-    SkCanvas* canvas = recorder.beginRecording(bounds, NULL, 0);
-    this->draw(canvas);
-    if (false) {
-        draw_bbox(canvas, bounds);
-    }
-    return recorder.endRecording();
-}