1 files changed, 174 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/filtershow/imageshow/ImageTinyPlanet.java b/src/com/android/gallery3d/filtershow/imageshow/ImageTinyPlanet.java
new file mode 100644
index 000000000..25a0a9073
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/imageshow/ImageTinyPlanet.java
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+package com.android.gallery3d.filtershow.imageshow;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.RectF;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.ScaleGestureDetector;
+import android.view.ScaleGestureDetector.OnScaleGestureListener;
+
+import com.android.gallery3d.filtershow.editors.BasicEditor;
+import com.android.gallery3d.filtershow.editors.EditorTinyPlanet;
+import com.android.gallery3d.filtershow.filters.FilterTinyPlanetRepresentation;
+
+public class ImageTinyPlanet extends ImageShow {
+    private static final String LOGTAG = "ImageTinyPlanet";
+
+    private float mTouchCenterX = 0;
+    private float mTouchCenterY = 0;
+    private float mCurrentX = 0;
+    private float mCurrentY = 0;
+    private float mCenterX = 0;
+    private float mCenterY = 0;
+    private float mStartAngle = 0;
+    private FilterTinyPlanetRepresentation mTinyPlanetRep;
+    private EditorTinyPlanet mEditorTinyPlanet;
+    private ScaleGestureDetector mScaleGestureDetector = null;
+    boolean mInScale = false;
+    RectF mDestRect = new RectF();
+
+    OnScaleGestureListener mScaleGestureListener = new OnScaleGestureListener() {
+        private float mScale = 100;
+        @Override
+        public void onScaleEnd(ScaleGestureDetector detector) {
+            mInScale = false;
+        }
+
+        @Override
+        public boolean onScaleBegin(ScaleGestureDetector detector) {
+            mInScale = true;
+            mScale = mTinyPlanetRep.getValue();
+            return true;
+        }
+
+        @Override
+        public boolean onScale(ScaleGestureDetector detector) {
+            int value = mTinyPlanetRep.getValue();
+            mScale *= detector.getScaleFactor();
+            value = (int) (mScale);
+            value = Math.min(mTinyPlanetRep.getMaximum(), value);
+            value = Math.max(mTinyPlanetRep.getMinimum(), value);
+            mTinyPlanetRep.setValue(value);
+            invalidate();
+            mEditorTinyPlanet.commitLocalRepresentation();
+            mEditorTinyPlanet.updateUI();
+            return true;
+        }
+    };
+
+    public ImageTinyPlanet(Context context) {
+        super(context);
+        mScaleGestureDetector = new ScaleGestureDetector(context, mScaleGestureListener);
+    }
+
+    public ImageTinyPlanet(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        mScaleGestureDetector = new ScaleGestureDetector(context,mScaleGestureListener );
+    }
+
+    protected static float angleFor(float dx, float dy) {
+        return (float) (Math.atan2(dx, dy) * 180 / Math.PI);
+    }
+
+    protected float getCurrentTouchAngle() {
+        if (mCurrentX == mTouchCenterX && mCurrentY == mTouchCenterY) {
+            return 0;
+        }
+        float dX1 = mTouchCenterX - mCenterX;
+        float dY1 = mTouchCenterY - mCenterY;
+        float dX2 = mCurrentX - mCenterX;
+        float dY2 = mCurrentY - mCenterY;
+
+        float angleA = angleFor(dX1, dY1);
+        float angleB = angleFor(dX2, dY2);
+        return (float) (((angleB - angleA) % 360) * Math.PI / 180);
+    }
+
+    @Override
+    public boolean onTouchEvent(MotionEvent event) {
+        float x = event.getX();
+        float y = event.getY();
+        mCurrentX = x;
+        mCurrentY = y;
+        mCenterX = getWidth() / 2;
+        mCenterY = getHeight() / 2;
+        mScaleGestureDetector.onTouchEvent(event);
+        if (mInScale) {
+            return true;
+        }
+        switch (event.getActionMasked()) {
+            case (MotionEvent.ACTION_DOWN):
+                mTouchCenterX = x;
+                mTouchCenterY = y;
+                mStartAngle = mTinyPlanetRep.getAngle();
+                break;
+
+            case (MotionEvent.ACTION_MOVE):
+                mTinyPlanetRep.setAngle(mStartAngle + getCurrentTouchAngle());
+                break;
+        }
+        invalidate();
+        mEditorTinyPlanet.commitLocalRepresentation();
+        return true;
+    }
+
+    public void setRepresentation(FilterTinyPlanetRepresentation tinyPlanetRep) {
+        mTinyPlanetRep = tinyPlanetRep;
+    }
+
+    public void setEditor(BasicEditor editorTinyPlanet) {
+        mEditorTinyPlanet = (EditorTinyPlanet) editorTinyPlanet;
+    }
+
+    @Override
+    public void onDraw(Canvas canvas) {
+        Bitmap bitmap = MasterImage.getImage().getHighresImage();
+        if (bitmap == null) {
+            bitmap = MasterImage.getImage().getFilteredImage();
+        }
+
+        if (bitmap != null) {
+            display(canvas, bitmap);
+        }
+    }
+
+    private void display(Canvas canvas, Bitmap bitmap) {
+        float sw = canvas.getWidth();
+        float sh = canvas.getHeight();
+        float iw = bitmap.getWidth();
+        float ih = bitmap.getHeight();
+        float nsw = sw;
+        float nsh = sh;
+
+        if (sw * ih > sh * iw) {
+            nsw = sh * iw / ih;
+        } else {
+            nsh = sw * ih / iw;
+        }
+
+        mDestRect.left = (sw - nsw) / 2;
+        mDestRect.top = (sh - nsh) / 2;
+        mDestRect.right = sw - mDestRect.left;
+        mDestRect.bottom = sh - mDestRect.top;
+
+        canvas.drawBitmap(bitmap, null, mDestRect, mPaint);
+    }
+}