Mouse pointer integration.
Added support for loading the pointer icon from a resource.
Moved the system server related bits of the input manager out
of libui and into libinput since they do not need to be linked into
applications.
Change-Id: Iec11e0725b3add2b905c51f8ea2c3b4b0d1a2d67
diff --git a/services/input/PointerController.h b/services/input/PointerController.h
new file mode 100644
index 0000000..a2a9955
--- /dev/null
+++ b/services/input/PointerController.h
@@ -0,0 +1,129 @@
+/*
+ * 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.
+ */
+
+#ifndef _UI_POINTER_CONTROLLER_H
+#define _UI_POINTER_CONTROLLER_H
+
+#include <ui/DisplayInfo.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+#include <surfaceflinger/Surface.h>
+#include <surfaceflinger/SurfaceComposerClient.h>
+#include <surfaceflinger/ISurfaceComposer.h>
+
+#include <SkBitmap.h>
+
+namespace android {
+
+enum {
+ POINTER_BUTTON_1 = 1 << 0,
+};
+
+/**
+ * Interface for tracking a single (mouse) pointer.
+ *
+ * The pointer controller is responsible for providing synchronization and for tracking
+ * display orientation changes if needed.
+ */
+class PointerControllerInterface : public virtual RefBase {
+protected:
+ PointerControllerInterface() { }
+ virtual ~PointerControllerInterface() { }
+
+public:
+ /* Gets the bounds of the region that the pointer can traverse.
+ * Returns true if the bounds are available. */
+ virtual bool getBounds(float* outMinX, float* outMinY,
+ float* outMaxX, float* outMaxY) const = 0;
+
+ /* Move the pointer. */
+ virtual void move(float deltaX, float deltaY) = 0;
+
+ /* Sets a mask that indicates which buttons are pressed. */
+ virtual void setButtonState(uint32_t buttonState) = 0;
+
+ /* Gets a mask that indicates which buttons are pressed. */
+ virtual uint32_t getButtonState() const = 0;
+
+ /* Sets the absolute location of the pointer. */
+ virtual void setPosition(float x, float y) = 0;
+
+ /* Gets the absolute location of the pointer. */
+ virtual void getPosition(float* outX, float* outY) const = 0;
+};
+
+
+/*
+ * Tracks pointer movements and draws the pointer sprite to a surface.
+ *
+ * Handles pointer acceleration and animation.
+ */
+class PointerController : public PointerControllerInterface {
+protected:
+ virtual ~PointerController();
+
+public:
+ PointerController(int32_t pointerLayer);
+
+ virtual bool getBounds(float* outMinX, float* outMinY,
+ float* outMaxX, float* outMaxY) const;
+ virtual void move(float deltaX, float deltaY);
+ virtual void setButtonState(uint32_t buttonState);
+ virtual uint32_t getButtonState() const;
+ virtual void setPosition(float x, float y);
+ virtual void getPosition(float* outX, float* outY) const;
+
+ void setDisplaySize(int32_t width, int32_t height);
+ void setDisplayOrientation(int32_t orientation);
+ void setPointerIcon(const SkBitmap* bitmap, float hotSpotX, float hotSpotY);
+
+private:
+ mutable Mutex mLock;
+
+ int32_t mPointerLayer;
+ sp<SurfaceComposerClient> mSurfaceComposerClient;
+ sp<SurfaceControl> mSurfaceControl;
+
+ struct Locked {
+ int32_t displayWidth;
+ int32_t displayHeight;
+ int32_t displayOrientation;
+
+ float pointerX;
+ float pointerY;
+ uint32_t buttonState;
+
+ SkBitmap* iconBitmap;
+ float iconHotSpotX;
+ float iconHotSpotY;
+
+ bool wantVisible;
+ bool visible;
+ bool drawn;
+ } mLocked;
+
+ bool getBoundsLocked(float* outMinX, float* outMinY, float* outMaxX, float* outMaxY) const;
+ void setPositionLocked(float x, float y);
+ void updateLocked();
+ bool createSurfaceIfNeededLocked();
+ bool drawPointerIfNeededLocked();
+ bool resizeSurfaceLocked(int32_t width, int32_t height);
+};
+
+} // namespace android
+
+#endif // _UI_POINTER_CONTROLLER_H