1 files changed, 117 insertions, 0 deletions
diff --git a/src/com/android/camera/ui/RotateLayout.java b/src/com/android/camera/ui/RotateLayout.java
new file mode 100644
index 0000000..6e1aa92
--- /dev/null
+++ b/src/com/android/camera/ui/RotateLayout.java
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2010 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.camera.ui;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+
+// A RotateLayout is designed to display a single item and provides the
+// capabilities to rotate the item.
+class RotateLayout extends ViewGroup {
+    private int mOrientation;
+    private View mChild;
+
+    public RotateLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        mChild = getChildAt(0);
+    }
+
+    @Override
+    protected void onLayout(
+            boolean change, int left, int top, int right, int bottom) {
+        int width = right - left;
+        int height = bottom - top;
+        switch (mOrientation) {
+            case 0:
+            case 180:
+                mChild.layout(0, 0, width, height);
+                break;
+            case 90:
+            case 270:
+                mChild.layout(0, 0, height, width);
+                break;
+        }
+    }
+
+    @Override
+    protected void onMeasure(int widthSpec, int heightSpec) {
+        switch(mOrientation) {
+            case 0:
+            case 180:
+                measureChild(mChild, widthSpec, heightSpec);
+                setMeasuredDimension(mChild.getMeasuredWidth(), mChild.getMeasuredHeight());
+                break;
+            case 90:
+            case 270:
+                measureChild(mChild, heightSpec, widthSpec);
+                setMeasuredDimension(mChild.getMeasuredHeight(), mChild.getMeasuredWidth());
+                break;
+        }
+    }
+
+    @Override
+    public void dispatchDraw(Canvas canvas) {
+        int w = getWidth();
+        int h = getHeight();
+        switch (mOrientation) {
+            case 90:
+                canvas.translate(0, h);
+                canvas.rotate(-mOrientation);
+                break;
+            case 180:
+                canvas.rotate(-mOrientation, w / 2, h / 2);
+                break;
+            case 270:
+                canvas.translate(w, 0);
+                canvas.rotate(-mOrientation);
+                break;
+        }
+        super.dispatchDraw(canvas);
+    }
+
+    @Override
+    public boolean dispatchTouchEvent(MotionEvent event) {
+        float x = event.getX();
+        float y = event.getY();
+        float width = getWidth();
+        float height = getHeight();
+        switch (mOrientation) {
+            case 90: event.setLocation(height - y, x); break;
+            case 180: event.setLocation(width - x, height - y); break;
+            case 270: event.setLocation(y, width - x); break;
+        }
+        boolean result = mChild.dispatchTouchEvent(event);
+        event.setLocation(x, y);
+        return result;
+    }
+
+    // Rotate the view counter-clockwise
+    public void setOrientation(int orientation) {
+        orientation = orientation % 360;
+        if (mOrientation == orientation) return;
+        mOrientation = orientation;
+        requestLayout();
+    }
+}