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 "tools/viewer/ImageSlide.h"
9
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkData.h"
12 #include "include/core/SkImage.h"
13 #include "include/private/base/SkAssert.h"
14
15 #include <utility>
16
ImageSlide(const SkString & name,const SkString & path)17 ImageSlide::ImageSlide(const SkString& name, const SkString& path) : fPath(path) {
18 fName = name;
19 }
20
ImageSlide(const SkString & name,sk_sp<SkImage> image)21 ImageSlide::ImageSlide(const SkString& name, sk_sp<SkImage> image)
22 : fImage(std::move(image)), fRetainImage(true) {
23 fName = name;
24 }
25
getDimensions() const26 SkISize ImageSlide::getDimensions() const {
27 return fImage ? fImage->dimensions() : SkISize::Make(0, 0);
28 }
29
draw(SkCanvas * canvas)30 void ImageSlide::draw(SkCanvas* canvas) {
31 SkASSERT(fImage);
32 canvas->drawImage(fImage, 0, 0);
33 }
34
load(SkScalar,SkScalar)35 void ImageSlide::load(SkScalar, SkScalar) {
36 if (fRetainImage) {
37 SkASSERT(fImage);
38 } else {
39 sk_sp<SkData> encoded = SkData::MakeFromFileName(fPath.c_str());
40 fImage = SkImages::DeferredFromEncodedData(encoded);
41 }
42 }
43
unload()44 void ImageSlide::unload() {
45 if (!fRetainImage) {
46 fImage.reset(nullptr);
47 }
48 }
49