Add a sprite controller.

Refactored PointerController to extract the surface management
code to a new component called a SpriteController so that it can
be used to move finger tracking spots around the screen as well.
The SpriteController is designed to fully decouple the client from
any latency introduced by surface transactions and drawing.
All sprite updates are performed asynchronously on the Looper using
a copy of the sprite state.

Added a stub SpotController implementation for touch pad UX.
It will be implemented in a subsequent patch.

Fixed a little bug in pointer orientation changes when entering
DISPLAY_ORIENTATION_90 the x offset was clobbered.

Change-Id: Ib25d162d577c9b354cb74d5d761c3c9f9f438d42

1 files changed, 45 insertions, 0 deletions

diff --git a/services/input/SpotController.cpp b/services/input/SpotController.cpp
new file mode 100644
index 000000000000..dffad81009c7
--- /dev/null
+++ b/services/input/SpotController.cpp
@@ -0,0 +1,45 @@
+/*
+ * 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.
+ */
+
+#define LOG_TAG "SpotController"
+
+//#define LOG_NDEBUG 0
+
+// Log debug messages about spot updates
+#define DEBUG_SPOT_UPDATES 0
+
+#include "SpotController.h"
+
+#include <cutils/log.h>
+
+namespace android {
+
+// --- SpotController ---
+
+SpotController::SpotController(const sp<Looper>& looper,
+        const sp<SpriteController>& spriteController) :
+        mLooper(looper), mSpriteController(spriteController) {
+    mHandler = new WeakMessageHandler(this);
+}
+
+SpotController::~SpotController() {
+    mLooper->removeMessages(mHandler);
+}
+
+void SpotController:: handleMessage(const Message& message) {
+}
+
+} // namespace android