add tabs to QuickControls

    Bug: 4084343
    The final act in a 3 act drama.
    Adds tab thumbnails to QuickControls menu and
    removes the tab bar.

Change-Id: Id667e8020745c3d77920858fcd9dd7f510973dd9

1 files changed, 104 insertions, 0 deletions

diff --git a/src/com/android/browser/view/PieStackView.java b/src/com/android/browser/view/PieStackView.java
new file mode 100644
index 0000000..df387ad
--- /dev/null
+++ b/src/com/android/browser/view/PieStackView.java
@@ -0,0 +1,104 @@
+/*
+ * 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.browser.view;
+
+import com.android.browser.R;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.view.View;
+
+/**
+ * shows views in a stack
+ */
+public class PieStackView extends BasePieView {
+
+    private static final int SLOP = 5;
+
+    private OnCurrentListener mCurrentListener;
+    private int mMinHeight;
+
+    public interface OnCurrentListener {
+        public void onSetCurrent(int index);
+    }
+
+    public PieStackView(Context ctx) {
+        mMinHeight = (int) ctx.getResources()
+                .getDimension(R.dimen.qc_tab_title_height);
+    }
+
+    public void setOnCurrentListener(OnCurrentListener l) {
+        mCurrentListener = l;
+    }
+
+    @Override
+    public void setCurrent(int ix) {
+        super.setCurrent(ix);
+        if (mCurrentListener != null) {
+            mCurrentListener.onSetCurrent(ix);
+            buildViews();
+            layoutChildrenLinear();
+        }
+    }
+
+    /**
+     * this will be called before the first draw call
+     */
+    @Override
+    public void layout(int anchorX, int anchorY, boolean left) {
+        super.layout(anchorX, anchorY, left);
+        buildViews();
+        mWidth = mChildWidth;
+        mHeight = mChildHeight + (mViews.size() - 1) * mMinHeight;
+        mLeft = anchorX + (left ? SLOP : -(SLOP + mChildWidth));
+        mTop = anchorY - mHeight / 2;
+        if (mViews != null) {
+            layoutChildrenLinear();
+        }
+    }
+
+    private void layoutChildrenLinear() {
+        final int n = mViews.size();
+        int top = mTop;
+        int dy = (n == 1) ? 0 : (mHeight - mChildHeight) / (n - 1);
+        for (View view : mViews) {
+            view.layout(mLeft, top, mLeft + mChildWidth, top + mChildHeight);
+            top += dy;
+        }
+    }
+
+    @Override
+    public void draw(Canvas canvas) {
+        if (mViews != null) {
+            final int n = mViews.size();
+            for (int i = 0; i < mCurrent; i++) {
+                drawView(mViews.get(i), canvas);
+            }
+            for (int i = n - 1; i > mCurrent; i--) {
+                drawView(mViews.get(i), canvas);
+            }
+            drawView(mViews.get(mCurrent), canvas);
+        }
+    }
+
+    @Override
+    protected int findChildAt(int y) {
+        final int ix = (y - mTop) * mViews.size() / mHeight;
+        return ix;
+    }
+
+}