Initial checkin of spot presentation for touchpad gestures.
Added a new PointerIcon API (hidden for now) for loading
pointer icons.
Fixed a starvation problem in the native Looper's sendMessage
implementation which caused new messages to be posted ahead
of old messages sent with sendMessageDelayed.
Redesigned the touch pad gestures to be defined in terms of
more fluid finger / spot movements. The objective is to reinforce
the natural mapping between fingers and spots which means there
must not be any discontinuities in spot motion relative to
the fingers.
Removed the SpotController stub and folded its responsibilities
into PointerController.
Change-Id: I5126b1e69d95252fda7f2a684c9287e239a57163
diff --git a/core/jni/android_view_PointerIcon.h b/core/jni/android_view_PointerIcon.h
new file mode 100644
index 0000000..3bfd645
--- /dev/null
+++ b/core/jni/android_view_PointerIcon.h
@@ -0,0 +1,80 @@
+/*
+ * 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.
+ */
+
+#ifndef _ANDROID_VIEW_POINTER_ICON_H
+#define _ANDROID_VIEW_POINTER_ICON_H
+
+#include "jni.h"
+
+#include <utils/Errors.h>
+#include <SkBitmap.h>
+
+namespace android {
+
+/* Pointer icon styles.
+ * Must match the definition in android.view.PointerIcon.
+ */
+enum {
+ POINTER_ICON_STYLE_CUSTOM = -1,
+ POINTER_ICON_STYLE_NULL = 0,
+ POINTER_ICON_STYLE_ARROW = 1000,
+ POINTER_ICON_STYLE_SPOT_HOVER = 2000,
+ POINTER_ICON_STYLE_SPOT_TOUCH = 2001,
+ POINTER_ICON_STYLE_SPOT_ANCHOR = 2002,
+};
+
+/*
+ * Describes a pointer icon.
+ */
+struct PointerIcon {
+ inline PointerIcon() {
+ reset();
+ }
+
+ int32_t style;
+ SkBitmap bitmap;
+ float hotSpotX;
+ float hotSpotY;
+
+ inline bool isNullIcon() {
+ return style == POINTER_ICON_STYLE_NULL;
+ }
+
+ inline void reset() {
+ style = POINTER_ICON_STYLE_NULL;
+ bitmap.reset();
+ hotSpotX = 0;
+ hotSpotY = 0;
+ }
+};
+
+/* Gets a system pointer icon with the specified style. */
+extern jobject android_view_PointerIcon_getSystemIcon(JNIEnv* env,
+ jobject contextObj, int32_t style);
+
+/* Loads the bitmap associated with a pointer icon.
+ * If pointerIconObj is NULL, returns OK and a pointer icon with POINTER_ICON_STYLE_NULL. */
+extern status_t android_view_PointerIcon_load(JNIEnv* env,
+ jobject pointerIconObj, jobject contextObj, PointerIcon* outPointerIcon);
+
+/* Loads the bitmap associated with a pointer icon by style.
+ * If pointerIconObj is NULL, returns OK and a pointer icon with POINTER_ICON_STYLE_NULL. */
+extern status_t android_view_PointerIcon_loadSystemIcon(JNIEnv* env,
+ jobject contextObj, int32_t style, PointerIcon* outPointerIcon);
+
+} // namespace android
+
+#endif // _ANDROID_OS_POINTER_ICON_H