Add samples to Viewer.

This adds support with animation, assuming the sample has
implemented onAnimate. Event handling has not been
implemented.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2056343004

Committed: https://skia.googlesource.com/skia/+/76963e73704a42a18c29d6fbdcccb566e5c67658
Review-Url: https://codereview.chromium.org/2056343004

8 files changed, 97 insertions, 7 deletions

diff --git a/tools/viewer/ImageSlide.cpp b/tools/viewer/ImageSlide.cpp
index 4a03185733..de5ce4ca1e 100644
--- a/tools/viewer/ImageSlide.cpp
+++ b/tools/viewer/ImageSlide.cpp
@@ -35,7 +35,7 @@ void ImageSlide::draw(SkCanvas* canvas) {
     }
 }
 
-void ImageSlide::load() {
+void ImageSlide::load(SkScalar, SkScalar) {
     sk_sp<SkData> encoded = SkData::MakeFromFileName(fPath.c_str());
     fImage = SkImage::MakeFromEncoded(encoded);
     fImage->asLegacyBitmap(&fOriginalBitmap, SkImage::kRO_LegacyBitmapMode);
diff --git a/tools/viewer/ImageSlide.h b/tools/viewer/ImageSlide.h
index 88254ddc03..0dd816e878 100644
--- a/tools/viewer/ImageSlide.h
+++ b/tools/viewer/ImageSlide.h
@@ -21,7 +21,7 @@ public:
     SkISize getDimensions() const override;
 
     void draw(SkCanvas* canvas) override;
-    void load() override;
+    void load(SkScalar winWidth, SkScalar winHeight) override;
     void unload() override;
 
 private:
diff --git a/tools/viewer/SKPSlide.cpp b/tools/viewer/SKPSlide.cpp
index 6a9899b92f..9419253f0c 100644
--- a/tools/viewer/SKPSlide.cpp
+++ b/tools/viewer/SKPSlide.cpp
@@ -48,7 +48,7 @@ static sk_sp<SkPicture> read_picture(const char path[]) {
     return pic;
 }
 
-void SKPSlide::load() {
+void SKPSlide::load(SkScalar, SkScalar) {
     fPic = read_picture(fPath.c_str());
     fCullRect = fPic->cullRect().roundOut();
 }
diff --git a/tools/viewer/SKPSlide.h b/tools/viewer/SKPSlide.h
index 42845fa30d..ff92ed1a39 100644
--- a/tools/viewer/SKPSlide.h
+++ b/tools/viewer/SKPSlide.h
@@ -19,7 +19,7 @@ public:
     SkISize getDimensions() const override { return fCullRect.size(); }
 
     void draw(SkCanvas* canvas) override;
-    void load() override;
+    void load(SkScalar winWidth, SkScalar winHeight) override;
     void unload() override;
 
 private:
diff --git a/tools/viewer/SampleSlide.cpp b/tools/viewer/SampleSlide.cpp
new file mode 100755
index 0000000000..5e02ff1da7
--- /dev/null
+++ b/tools/viewer/SampleSlide.cpp
@@ -0,0 +1,45 @@
+/*
+* Copyright 2016 Google Inc.
+*
+* Use of this source code is governed by a BSD-style license that can be
+* found in the LICENSE file.
+*/
+
+#include "SampleSlide.h"
+
+#include "SkCanvas.h"
+#include "SkCommonFlags.h"
+#include "SkOSFile.h"
+#include "SkStream.h"
+
+SampleSlide::SampleSlide(const SkViewFactory* factory) : fViewFactory(factory) {
+    SkView* view = (*factory)();
+    SampleCode::RequestTitle(view, &fName);
+    view->unref();
+}
+
+SampleSlide::~SampleSlide() {}
+
+void SampleSlide::draw(SkCanvas* canvas) {
+    fView->draw(canvas);
+}
+
+void SampleSlide::load(SkScalar winWidth, SkScalar winHeight) {
+    fView = (*fViewFactory)();
+    fView->setVisibleP(true);
+    fView->setClipToBounds(false);
+    fView->setSize(winWidth, winHeight);
+}
+
+void SampleSlide::unload() {
+    fView->unref();
+    fView = nullptr;
+}
+
+#if defined(SK_BUILD_FOR_ANDROID)
+// these are normally defined in SkOSWindow_unix, but we don't
+// want to include that
+void SkEvent::SignalNonEmptyQueue() {}
+
+void SkEvent::SignalQueueTimer(SkMSec delay) {}
+#endif
diff --git a/tools/viewer/SampleSlide.h b/tools/viewer/SampleSlide.h
new file mode 100755
index 0000000000..3d772d093d
--- /dev/null
+++ b/tools/viewer/SampleSlide.h
@@ -0,0 +1,34 @@
+/*
+* Copyright 2016 Google Inc.
+*
+* Use of this source code is governed by a BSD-style license that can be
+* found in the LICENSE file.
+*/
+
+#ifndef SampleSlide_DEFINED
+#define SampleSlide_DEFINED
+
+#include "Slide.h"
+#include "SampleCode.h"
+
+class SampleSlide : public Slide {
+public:
+    SampleSlide(const SkViewFactory* factory);
+    ~SampleSlide() override;
+
+    void draw(SkCanvas* canvas) override;
+    void load(SkScalar winWidth, SkScalar winHeight) override;
+    void unload() override;
+    bool animate(const SkAnimTimer& timer) override {
+        if (SampleView::IsSampleView(fView)) {
+            return ((SampleView*)fView)->animate(timer);
+        }
+        return false;
+    }
+
+private:
+    const SkViewFactory*   fViewFactory;
+    SkView*                fView;
+};
+
+#endif
diff --git a/tools/viewer/Slide.h b/tools/viewer/Slide.h
index cdc225b0a8..bc0ffd4016 100644
--- a/tools/viewer/Slide.h
+++ b/tools/viewer/Slide.h
@@ -19,11 +19,13 @@ class Slide : public SkRefCnt {
 public:
     virtual ~Slide() {}
 
-    virtual SkISize getDimensions() const = 0;
+    virtual SkISize getDimensions() const {
+        return SkISize::Make(0, 0);
+    }
 
     virtual void draw(SkCanvas* canvas) = 0;
     virtual bool animate(const SkAnimTimer&) { return false;  }
-    virtual void load() {}
+    virtual void load(SkScalar winWidth, SkScalar winHeight) {}
     virtual void unload() {}
 
     SkString getName() { return fName; }
diff --git a/tools/viewer/Viewer.cpp b/tools/viewer/Viewer.cpp
index 7052a3ac79..43697f88b8 100644
--- a/tools/viewer/Viewer.cpp
+++ b/tools/viewer/Viewer.cpp
@@ -9,6 +9,7 @@
 
 #include "GMSlide.h"
 #include "ImageSlide.h"
+#include "SampleSlide.h"
 #include "SKPSlide.h"
 
 #include "SkCanvas.h"
@@ -205,6 +206,14 @@ void Viewer::initSlides() {
         fSlides[fSlides.count() - i - 1] = temp;
     }
 
+    // samples
+    const SkViewRegister* reg = SkViewRegister::Head();
+    while (reg) {
+        sk_sp<Slide> slide(new SampleSlide(reg->factory()));
+        fSlides.push_back(slide);
+        reg = reg->next();
+    }
+
     // SKPs
     for (int i = 0; i < FLAGS_skps.count(); i++) {
         if (SkStrEndsWith(FLAGS_skps[i], ".skp")) {
@@ -270,7 +279,7 @@ void Viewer::setupCurrentSlide(int previousSlide) {
     }
 
     // prepare dimensions for image slides
-    fSlides[fCurrentSlide]->load();
+    fSlides[fCurrentSlide]->load(SkIntToScalar(fWindow->width()), SkIntToScalar(fWindow->height()));
 
     fGesture.reset();
     fDefaultMatrix.reset();