1 files changed, 237 insertions, 0 deletions
diff --git a/InCallUI/src/com/android/incallui/widget/multiwaveview/TargetDrawable.java b/InCallUI/src/com/android/incallui/widget/multiwaveview/TargetDrawable.java
new file mode 100644
index 000000000..d83a28c11
--- /dev/null
+++ b/InCallUI/src/com/android/incallui/widget/multiwaveview/TargetDrawable.java
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2011 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.incallui.widget.multiwaveview;
+
+import android.content.res.Resources;
+import android.graphics.Canvas;
+import android.graphics.ColorFilter;
+import android.graphics.drawable.Drawable;
+import android.graphics.drawable.StateListDrawable;
+import android.util.Log;
+
+public class TargetDrawable {
+    private static final String TAG = "TargetDrawable";
+    private static final boolean DEBUG = false;
+
+    public static final int[] STATE_ACTIVE =
+            { android.R.attr.state_enabled, android.R.attr.state_active };
+    public static final int[] STATE_INACTIVE =
+            { android.R.attr.state_enabled, -android.R.attr.state_active };
+    public static final int[] STATE_FOCUSED =
+            { android.R.attr.state_enabled, -android.R.attr.state_active,
+                android.R.attr.state_focused };
+
+    private float mTranslationX = 0.0f;
+    private float mTranslationY = 0.0f;
+    private float mPositionX = 0.0f;
+    private float mPositionY = 0.0f;
+    private float mScaleX = 1.0f;
+    private float mScaleY = 1.0f;
+    private float mAlpha = 1.0f;
+    private Drawable mDrawable;
+    private boolean mEnabled = true;
+    private final int mResourceId;
+    private int mNumDrawables = 1;
+
+    /**
+     * This is changed from the framework version to pass in the number of drawables in the
+     * container. The framework version relies on private api's to get the count from
+     * StateListDrawable.
+     *
+     * @param res
+     * @param resId
+     * @param count The number of drawables in the resource.
+     */
+    public TargetDrawable(Resources res, int resId, int count) {
+        mResourceId = resId;
+        setDrawable(res, resId);
+        mNumDrawables = count;
+    }
+
+    public void setDrawable(Resources res, int resId) {
+        // Note we explicitly don't set mResourceId to resId since we allow the drawable to be
+        // swapped at runtime and want to re-use the existing resource id for identification.
+        Drawable drawable = resId == 0 ? null : res.getDrawable(resId);
+        // Mutate the drawable so we can animate shared drawable properties.
+        mDrawable = drawable != null ? drawable.mutate() : null;
+        resizeDrawables();
+        setState(STATE_INACTIVE);
+    }
+
+    public TargetDrawable(TargetDrawable other) {
+        mResourceId = other.mResourceId;
+        // Mutate the drawable so we can animate shared drawable properties.
+        mDrawable = other.mDrawable != null ? other.mDrawable.mutate() : null;
+        resizeDrawables();
+        setState(STATE_INACTIVE);
+    }
+
+    public void setState(int [] state) {
+        if (mDrawable instanceof StateListDrawable) {
+            StateListDrawable d = (StateListDrawable) mDrawable;
+            d.setState(state);
+        }
+    }
+
+    /**
+     * Returns true if the drawable is a StateListDrawable and is in the focused state.
+     *
+     * @return
+     */
+    public boolean isActive() {
+        if (mDrawable instanceof StateListDrawable) {
+            StateListDrawable d = (StateListDrawable) mDrawable;
+            int[] states = d.getState();
+            for (int i = 0; i < states.length; i++) {
+                if (states[i] == android.R.attr.state_focused) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Returns true if this target is enabled. Typically an enabled target contains a valid
+     * drawable in a valid state. Currently all targets with valid drawables are valid.
+     *
+     * @return
+     */
+    public boolean isEnabled() {
+        return mDrawable != null && mEnabled;
+    }
+
+    /**
+     * Makes drawables in a StateListDrawable all the same dimensions.
+     * If not a StateListDrawable, then justs sets the bounds to the intrinsic size of the
+     * drawable.
+     */
+    private void resizeDrawables() {
+        if (mDrawable instanceof StateListDrawable) {
+            StateListDrawable d = (StateListDrawable) mDrawable;
+            int maxWidth = 0;
+            int maxHeight = 0;
+
+            for (int i = 0; i < mNumDrawables; i++) {
+                d.selectDrawable(i);
+                Drawable childDrawable = d.getCurrent();
+                maxWidth = Math.max(maxWidth, childDrawable.getIntrinsicWidth());
+                maxHeight = Math.max(maxHeight, childDrawable.getIntrinsicHeight());
+            }
+
+            if (DEBUG) Log.v(TAG, "union of childDrawable rects " + d + " to: "
+                    + maxWidth + "x" + maxHeight);
+            d.setBounds(0, 0, maxWidth, maxHeight);
+
+            for (int i = 0; i < mNumDrawables; i++) {
+                d.selectDrawable(i);
+                Drawable childDrawable = d.getCurrent();
+                if (DEBUG) Log.v(TAG, "sizing drawable " + childDrawable + " to: "
+                            + maxWidth + "x" + maxHeight);
+                childDrawable.setBounds(0, 0, maxWidth, maxHeight);
+            }
+        } else if (mDrawable != null) {
+            mDrawable.setBounds(0, 0,
+                    mDrawable.getIntrinsicWidth(), mDrawable.getIntrinsicHeight());
+        }
+    }
+
+    public void setX(float x) {
+        mTranslationX = x;
+    }
+
+    public void setY(float y) {
+        mTranslationY = y;
+    }
+
+    public void setScaleX(float x) {
+        mScaleX = x;
+    }
+
+    public void setScaleY(float y) {
+        mScaleY = y;
+    }
+
+    public void setAlpha(float alpha) {
+        mAlpha = alpha;
+    }
+
+    public float getX() {
+        return mTranslationX;
+    }
+
+    public float getY() {
+        return mTranslationY;
+    }
+
+    public float getScaleX() {
+        return mScaleX;
+    }
+
+    public float getScaleY() {
+        return mScaleY;
+    }
+
+    public float getAlpha() {
+        return mAlpha;
+    }
+
+    public void setPositionX(float x) {
+        mPositionX = x;
+    }
+
+    public void setPositionY(float y) {
+        mPositionY = y;
+    }
+
+    public float getPositionX() {
+        return mPositionX;
+    }
+
+    public float getPositionY() {
+        return mPositionY;
+    }
+
+    public int getWidth() {
+        return mDrawable != null ? mDrawable.getIntrinsicWidth() : 0;
+    }
+
+    public int getHeight() {
+        return mDrawable != null ? mDrawable.getIntrinsicHeight() : 0;
+    }
+
+    public void draw(Canvas canvas) {
+        if (mDrawable == null || !mEnabled) {
+            return;
+        }
+        canvas.save(Canvas.MATRIX_SAVE_FLAG);
+        canvas.scale(mScaleX, mScaleY, mPositionX, mPositionY);
+        canvas.translate(mTranslationX + mPositionX, mTranslationY + mPositionY);
+        canvas.translate(-0.5f * getWidth(), -0.5f * getHeight());
+        mDrawable.setAlpha((int) Math.round(mAlpha * 255f));
+        mDrawable.draw(canvas);
+        canvas.restore();
+    }
+
+    public void setEnabled(boolean enabled) {
+        mEnabled  = enabled;
+    }
+
+    public int getResourceId() {
+        return mResourceId;
+    }
+}