dm changes

samplecode/SampleImage.cpp

+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SampleCode.h"
+#include "SkPaint.h"
+#include "SkCanvas.h"
+#include "SkStream.h"
+#include "SkImageDecoder.h"
+#include "Resources.h"
+
+class ImageView : public SampleView {
+public:
+    ImageView(const char imageFilename[]) {
+        SkString resourcePath = GetResourcePath(imageFilename);
+        SkImageDecoder* codec = NULL;
+        SkFILEStream stream(resourcePath.c_str());
+        if (stream.isValid()) {
+            codec = SkImageDecoder::Factory(&stream);
+        }
+        if (codec) {
+            stream.rewind();
+            codec->decode(&stream, &fBM, kN32_SkColorType, SkImageDecoder::kDecodePixels_Mode);
+            SkDELETE(codec);
+        } else {
+            fBM.allocN32Pixels(1, 1);
+            *(fBM.getAddr32(0,0)) = 0xFF0000FF; // red == bad
+        }
+    }
+
+protected:
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "ImageView");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+
+    virtual void onDrawContent(SkCanvas* canvas) {
+        canvas->drawColor(SK_ColorWHITE);
+        SkPaint paint;
+        paint.setAntiAlias(true);
+        paint.setTextSize(48);
+        paint.setFilterQuality(kHigh_SkFilterQuality);
+        canvas->save();
+        canvas->drawBitmap( fBM, 50, 50, &paint );
+        canvas->restore();
+        paint.setColor(SK_ColorRED);
+        paint.setAntiAlias(true);
+        paint.setStyle(SkPaint::kStroke_Style);
+        paint.setStrokeWidth(10);
+        canvas->drawLine(20, 20, 100, 100, paint);
+    }
+
+private:
+    SkBitmap fBM;
+    typedef SampleView INHERITED;
+
+ };
+
+static SkView* MyFactory() { return new ImageView("yellow_rose.png"); }
+static SkViewRegister reg(MyFactory);