Move Canvas.h to a new location so that it can be shared with HWUI.

Bug: 15672762
Change-Id: Ia59e986cd4034e16b2e54e8d594e6941a6c9fb1b
diff --git a/core/jni/android/graphics/Canvas.h b/core/jni/android/graphics/Canvas.h
index 3cd57f4..2577a90 100644
--- a/core/jni/android/graphics/Canvas.h
+++ b/core/jni/android/graphics/Canvas.h
@@ -14,130 +14,6 @@
  * limitations under the License.
  */
 
-#ifndef ANDROID_GRAPHICS_CANVAS_H
-#define ANDROID_GRAPHICS_CANVAS_H
-
-#include "SkBitmap.h"
-#include "SkCanvas.h"
-#include "SkMatrix.h"
-
-namespace android {
-
-class Canvas {
-public:
-    virtual ~Canvas() {};
-
-    static Canvas* create_canvas(SkBitmap* bitmap);
-    static Canvas* create_canvas(SkCanvas* skiaCanvas);
-
-    // TODO: enable HWUI to either create similar canvas wrapper or subclass
-    //       directly from Canvas
-    //static Canvas* create_canvas(uirenderer::Renderer* renderer);
-
-    // TODO: this is a temporary affordance until all necessary logic can be
-    //       moved within this interface! Further, the return value should
-    //       NOT be unref'd and is valid until this canvas is destroyed or a
-    //       new bitmap is set.
-    virtual SkCanvas* getSkCanvas() = 0;
-
-    virtual void setBitmap(SkBitmap* bitmap, bool copyState) = 0;
-
-    virtual bool isOpaque() = 0;
-    virtual int width() = 0;
-    virtual int height() = 0;
-
-// ----------------------------------------------------------------------------
-// Canvas state operations
-// ----------------------------------------------------------------------------
-    // Save (layer)
-    virtual int getSaveCount() const = 0;
-    virtual int save(SkCanvas::SaveFlags flags) = 0;
-    virtual void restore() = 0;
-    virtual void restoreToCount(int saveCount) = 0;
-
-    virtual int saveLayer(float left, float top, float right, float bottom,
-                const SkPaint* paint, SkCanvas::SaveFlags flags) = 0;
-    virtual int saveLayerAlpha(float left, float top, float right, float bottom,
-            int alpha, SkCanvas::SaveFlags flags) = 0;
-
-    // Matrix
-    virtual void getMatrix(SkMatrix* outMatrix) const = 0;
-    virtual void setMatrix(const SkMatrix& matrix) = 0;
-
-    virtual void concat(const SkMatrix& matrix) = 0;
-    virtual void rotate(float degrees) = 0;
-    virtual void scale(float sx, float sy) = 0;
-    virtual void skew(float sx, float sy) = 0;
-    virtual void translate(float dx, float dy) = 0;
-
-    // clip
-    virtual bool getClipBounds(SkRect* outRect) const = 0;
-    virtual bool quickRejectRect(float left, float top, float right, float bottom) const = 0;
-    virtual bool quickRejectPath(const SkPath& path) const = 0;
-
-    virtual bool clipRect(float left, float top, float right, float bottom, SkRegion::Op op) = 0;
-    virtual bool clipPath(const SkPath* path, SkRegion::Op op) = 0;
-    virtual bool clipRegion(const SkRegion* region, SkRegion::Op op) = 0;
-
-    // filters
-    virtual SkDrawFilter* getDrawFilter() = 0;
-    virtual void setDrawFilter(SkDrawFilter* drawFilter) = 0;
-
-// ----------------------------------------------------------------------------
-// Canvas draw operations
-// ----------------------------------------------------------------------------
-    virtual void drawColor(int color, SkXfermode::Mode mode) = 0;
-    virtual void drawPaint(const SkPaint& paint) = 0;
-
-    // Geometry
-    virtual void drawPoint(float x, float y, const SkPaint& paint) = 0;
-    virtual void drawPoints(const float* points, int count, const SkPaint& paint) = 0;
-    virtual void drawLine(float startX, float startY, float stopX, float stopY,
-                const SkPaint& paint) = 0;
-    virtual void drawLines(const float* points, int count, const SkPaint& paint) = 0;
-    virtual void drawRect(float left, float top, float right, float bottom,
-            const SkPaint& paint) = 0;
-    virtual void drawRoundRect(float left, float top, float right, float bottom,
-            float rx, float ry, const SkPaint& paint) = 0;
-    virtual void drawCircle(float x, float y, float radius, const SkPaint& paint) = 0;
-    virtual void drawOval(float left, float top, float right, float bottom,
-            const SkPaint& paint) = 0;
-    virtual void drawArc(float left, float top, float right, float bottom,
-            float startAngle, float sweepAngle, bool useCenter, const SkPaint& paint) = 0;
-    virtual void drawPath(const SkPath& path, const SkPaint& paint) = 0;
-    virtual void drawVertices(SkCanvas::VertexMode vertexMode, int vertexCount,
-                              const float* verts, const float* tex, const int* colors,
-                              const uint16_t* indices, int indexCount, const SkPaint& paint) = 0;
-
-    // Bitmap-based
-    virtual void drawBitmap(const SkBitmap& bitmap, float left, float top,
-            const SkPaint* paint) = 0;
-    virtual void drawBitmap(const SkBitmap& bitmap, const SkMatrix& matrix,
-            const SkPaint* paint) = 0;
-    virtual void drawBitmap(const SkBitmap& bitmap, float srcLeft, float srcTop,
-            float srcRight, float srcBottom, float dstLeft, float dstTop,
-            float dstRight, float dstBottom, const SkPaint* paint) = 0;
-    virtual void drawBitmapMesh(const SkBitmap& bitmap, int meshWidth, int meshHeight,
-            const float* vertices, const int* colors, const SkPaint* paint) = 0;
-
-    // Text
-    virtual void drawText(const uint16_t* text, const float* positions, int count,
-            const SkPaint& paint, float x, float y,
-            float boundsLeft, float boundsTop, float boundsRight, float boundsBottom) = 0;
-    virtual void drawPosText(const uint16_t* text, const float* positions, int count,
-            int posCount, const SkPaint& paint) = 0;
-    virtual void drawTextOnPath(const uint16_t* glyphs, int count, const SkPath& path,
-            float hOffset, float vOffset, const SkPaint& paint) = 0;
-
-    /*
-     * Specifies if the positions passed to ::drawText are absolute or relative
-     * to the (x,y) value provided.
-     *
-     * If true the (x,y) values are ignored. Otherwise, those (x,y) values need
-     * to be added to each glyph's position to get its absolute position.
-     */
-    virtual bool drawTextAbsolutePos() const = 0;
-};
-
-}; // namespace android
-#endif // ANDROID_GRAPHICS_CANVAS_H
+// This header is shared with other libraries and as such is located in a
+// separate directory.
+#include <private/graphics/Canvas.h>
diff --git a/include/private/graphics/Canvas.h b/include/private/graphics/Canvas.h
new file mode 100644
index 0000000..3cd57f4
--- /dev/null
+++ b/include/private/graphics/Canvas.h
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_GRAPHICS_CANVAS_H
+#define ANDROID_GRAPHICS_CANVAS_H
+
+#include "SkBitmap.h"
+#include "SkCanvas.h"
+#include "SkMatrix.h"
+
+namespace android {
+
+class Canvas {
+public:
+    virtual ~Canvas() {};
+
+    static Canvas* create_canvas(SkBitmap* bitmap);
+    static Canvas* create_canvas(SkCanvas* skiaCanvas);
+
+    // TODO: enable HWUI to either create similar canvas wrapper or subclass
+    //       directly from Canvas
+    //static Canvas* create_canvas(uirenderer::Renderer* renderer);
+
+    // TODO: this is a temporary affordance until all necessary logic can be
+    //       moved within this interface! Further, the return value should
+    //       NOT be unref'd and is valid until this canvas is destroyed or a
+    //       new bitmap is set.
+    virtual SkCanvas* getSkCanvas() = 0;
+
+    virtual void setBitmap(SkBitmap* bitmap, bool copyState) = 0;
+
+    virtual bool isOpaque() = 0;
+    virtual int width() = 0;
+    virtual int height() = 0;
+
+// ----------------------------------------------------------------------------
+// Canvas state operations
+// ----------------------------------------------------------------------------
+    // Save (layer)
+    virtual int getSaveCount() const = 0;
+    virtual int save(SkCanvas::SaveFlags flags) = 0;
+    virtual void restore() = 0;
+    virtual void restoreToCount(int saveCount) = 0;
+
+    virtual int saveLayer(float left, float top, float right, float bottom,
+                const SkPaint* paint, SkCanvas::SaveFlags flags) = 0;
+    virtual int saveLayerAlpha(float left, float top, float right, float bottom,
+            int alpha, SkCanvas::SaveFlags flags) = 0;
+
+    // Matrix
+    virtual void getMatrix(SkMatrix* outMatrix) const = 0;
+    virtual void setMatrix(const SkMatrix& matrix) = 0;
+
+    virtual void concat(const SkMatrix& matrix) = 0;
+    virtual void rotate(float degrees) = 0;
+    virtual void scale(float sx, float sy) = 0;
+    virtual void skew(float sx, float sy) = 0;
+    virtual void translate(float dx, float dy) = 0;
+
+    // clip
+    virtual bool getClipBounds(SkRect* outRect) const = 0;
+    virtual bool quickRejectRect(float left, float top, float right, float bottom) const = 0;
+    virtual bool quickRejectPath(const SkPath& path) const = 0;
+
+    virtual bool clipRect(float left, float top, float right, float bottom, SkRegion::Op op) = 0;
+    virtual bool clipPath(const SkPath* path, SkRegion::Op op) = 0;
+    virtual bool clipRegion(const SkRegion* region, SkRegion::Op op) = 0;
+
+    // filters
+    virtual SkDrawFilter* getDrawFilter() = 0;
+    virtual void setDrawFilter(SkDrawFilter* drawFilter) = 0;
+
+// ----------------------------------------------------------------------------
+// Canvas draw operations
+// ----------------------------------------------------------------------------
+    virtual void drawColor(int color, SkXfermode::Mode mode) = 0;
+    virtual void drawPaint(const SkPaint& paint) = 0;
+
+    // Geometry
+    virtual void drawPoint(float x, float y, const SkPaint& paint) = 0;
+    virtual void drawPoints(const float* points, int count, const SkPaint& paint) = 0;
+    virtual void drawLine(float startX, float startY, float stopX, float stopY,
+                const SkPaint& paint) = 0;
+    virtual void drawLines(const float* points, int count, const SkPaint& paint) = 0;
+    virtual void drawRect(float left, float top, float right, float bottom,
+            const SkPaint& paint) = 0;
+    virtual void drawRoundRect(float left, float top, float right, float bottom,
+            float rx, float ry, const SkPaint& paint) = 0;
+    virtual void drawCircle(float x, float y, float radius, const SkPaint& paint) = 0;
+    virtual void drawOval(float left, float top, float right, float bottom,
+            const SkPaint& paint) = 0;
+    virtual void drawArc(float left, float top, float right, float bottom,
+            float startAngle, float sweepAngle, bool useCenter, const SkPaint& paint) = 0;
+    virtual void drawPath(const SkPath& path, const SkPaint& paint) = 0;
+    virtual void drawVertices(SkCanvas::VertexMode vertexMode, int vertexCount,
+                              const float* verts, const float* tex, const int* colors,
+                              const uint16_t* indices, int indexCount, const SkPaint& paint) = 0;
+
+    // Bitmap-based
+    virtual void drawBitmap(const SkBitmap& bitmap, float left, float top,
+            const SkPaint* paint) = 0;
+    virtual void drawBitmap(const SkBitmap& bitmap, const SkMatrix& matrix,
+            const SkPaint* paint) = 0;
+    virtual void drawBitmap(const SkBitmap& bitmap, float srcLeft, float srcTop,
+            float srcRight, float srcBottom, float dstLeft, float dstTop,
+            float dstRight, float dstBottom, const SkPaint* paint) = 0;
+    virtual void drawBitmapMesh(const SkBitmap& bitmap, int meshWidth, int meshHeight,
+            const float* vertices, const int* colors, const SkPaint* paint) = 0;
+
+    // Text
+    virtual void drawText(const uint16_t* text, const float* positions, int count,
+            const SkPaint& paint, float x, float y,
+            float boundsLeft, float boundsTop, float boundsRight, float boundsBottom) = 0;
+    virtual void drawPosText(const uint16_t* text, const float* positions, int count,
+            int posCount, const SkPaint& paint) = 0;
+    virtual void drawTextOnPath(const uint16_t* glyphs, int count, const SkPath& path,
+            float hOffset, float vOffset, const SkPaint& paint) = 0;
+
+    /*
+     * Specifies if the positions passed to ::drawText are absolute or relative
+     * to the (x,y) value provided.
+     *
+     * If true the (x,y) values are ignored. Otherwise, those (x,y) values need
+     * to be added to each glyph's position to get its absolute position.
+     */
+    virtual bool drawTextAbsolutePos() const = 0;
+};
+
+}; // namespace android
+#endif // ANDROID_GRAPHICS_CANVAS_H