1/*
2* Copyright 2016 Google Inc.
3*
4* Use of this source code is governed by a BSD-style license that can be
5* found in the LICENSE file.
6*/
7
8#include "SKPSlide.h"
9
10#include "SkCanvas.h"
11#include "SkCommonFlags.h"
12#include "SkOSFile.h"
13#include "SkStream.h"
14
15SKPSlide::SKPSlide(const SkString& name, const SkString& path) : fPath(path) {
16    fName = name;
17}
18
19SKPSlide::~SKPSlide() {}
20
21void SKPSlide::draw(SkCanvas* canvas) {
22    if (fPic.get()) {
23        bool isOffset = SkToBool(fCullRect.left() | fCullRect.top());
24        if (isOffset) {
25            canvas->save();
26            canvas->translate(SkIntToScalar(-fCullRect.left()), SkIntToScalar(-fCullRect.top()));
27        }
28
29        canvas->drawPicture(fPic.get());
30
31        if (isOffset) {
32            canvas->restore();
33        }
34    }
35}
36
37static sk_sp<SkPicture> read_picture(const char path[]) {
38    std::unique_ptr<SkStream> stream = SkStream::MakeFromFile(path);
39    if (!stream) {
40        SkDebugf("Could not read %s.\n", path);
41        return nullptr;
42    }
43
44    auto pic = SkPicture::MakeFromStream(stream.get());
45    if (!pic) {
46        SkDebugf("Could not read %s as an SkPicture.\n", path);
47    }
48    return pic;
49}
50
51void SKPSlide::load(SkScalar, SkScalar) {
52    fPic = read_picture(fPath.c_str());
53    fCullRect = fPic->cullRect().roundOut();
54}
55
56void SKPSlide::unload() {
57    fPic.reset(nullptr);
58}
59