auto import from //depot/cupcake/@135843
This commit is contained in:
The Android Open Source Project
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/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server;
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import android.util.Log;
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import android.view.Display;
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import android.view.MotionEvent;
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import android.view.Surface;
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import android.view.WindowManagerPolicy;
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public class InputDevice {
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/** Amount that trackball needs to move in order to generate a key event. */
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static final int TRACKBALL_MOVEMENT_THRESHOLD = 6;
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final int id;
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final int classes;
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final String name;
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final AbsoluteInfo absX;
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final AbsoluteInfo absY;
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final AbsoluteInfo absPressure;
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final AbsoluteInfo absSize;
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long mDownTime = 0;
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int mMetaKeysState = 0;
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final MotionState mAbs = new MotionState(0, 0);
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final MotionState mRel = new MotionState(TRACKBALL_MOVEMENT_THRESHOLD,
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TRACKBALL_MOVEMENT_THRESHOLD);
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static class MotionState {
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int xPrecision;
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int yPrecision;
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float xMoveScale;
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float yMoveScale;
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MotionEvent currentMove = null;
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boolean changed = false;
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boolean down = false;
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boolean lastDown = false;
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long downTime = 0;
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int x = 0;
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int y = 0;
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int pressure = 1;
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int size = 0;
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MotionState(int mx, int my) {
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xPrecision = mx;
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yPrecision = my;
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xMoveScale = mx != 0 ? (1.0f/mx) : 1.0f;
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yMoveScale = my != 0 ? (1.0f/my) : 1.0f;
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}
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MotionEvent generateMotion(InputDevice device, long curTime,
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boolean isAbs, Display display, int orientation,
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int metaState) {
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if (!changed) {
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return null;
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}
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float scaledX = x;
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float scaledY = y;
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float temp;
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float scaledPressure = 1.0f;
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float scaledSize = 0;
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int edgeFlags = 0;
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if (isAbs) {
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int w = display.getWidth()-1;
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int h = display.getHeight()-1;
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if (orientation == Surface.ROTATION_90
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|| orientation == Surface.ROTATION_270) {
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int tmp = w;
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w = h;
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h = tmp;
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}
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if (device.absX != null) {
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scaledX = ((scaledX-device.absX.minValue)
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/ device.absX.range) * w;
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}
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if (device.absY != null) {
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scaledY = ((scaledY-device.absY.minValue)
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/ device.absY.range) * h;
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}
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if (device.absPressure != null) {
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scaledPressure =
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((pressure-device.absPressure.minValue)
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/ (float)device.absPressure.range);
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}
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if (device.absSize != null) {
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scaledSize =
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((size-device.absSize.minValue)
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/ (float)device.absSize.range);
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}
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switch (orientation) {
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case Surface.ROTATION_90:
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temp = scaledX;
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scaledX = scaledY;
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scaledY = w-temp;
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break;
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case Surface.ROTATION_180:
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scaledX = w-scaledX;
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scaledY = h-scaledY;
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break;
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case Surface.ROTATION_270:
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temp = scaledX;
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scaledX = h-scaledY;
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scaledY = temp;
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break;
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}
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if (scaledX == 0) {
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edgeFlags += MotionEvent.EDGE_LEFT;
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} else if (scaledX == display.getWidth() - 1.0f) {
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edgeFlags += MotionEvent.EDGE_RIGHT;
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}
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if (scaledY == 0) {
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edgeFlags += MotionEvent.EDGE_TOP;
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} else if (scaledY == display.getHeight() - 1.0f) {
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edgeFlags += MotionEvent.EDGE_BOTTOM;
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}
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} else {
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scaledX *= xMoveScale;
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scaledY *= yMoveScale;
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switch (orientation) {
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case Surface.ROTATION_90:
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temp = scaledX;
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scaledX = scaledY;
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scaledY = -temp;
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break;
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case Surface.ROTATION_180:
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scaledX = -scaledX;
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scaledY = -scaledY;
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break;
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case Surface.ROTATION_270:
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temp = scaledX;
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scaledX = -scaledY;
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scaledY = temp;
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break;
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}
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}
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changed = false;
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if (down != lastDown) {
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int action;
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lastDown = down;
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if (down) {
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action = MotionEvent.ACTION_DOWN;
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downTime = curTime;
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} else {
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action = MotionEvent.ACTION_UP;
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}
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currentMove = null;
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if (!isAbs) {
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x = y = 0;
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}
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return MotionEvent.obtain(downTime, curTime, action,
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scaledX, scaledY, scaledPressure, scaledSize, metaState,
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xPrecision, yPrecision, device.id, edgeFlags);
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} else {
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if (currentMove != null) {
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if (false) Log.i("InputDevice", "Adding batch x=" + scaledX
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+ " y=" + scaledY + " to " + currentMove);
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currentMove.addBatch(curTime, scaledX, scaledY,
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scaledPressure, scaledSize, metaState);
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if (WindowManagerPolicy.WATCH_POINTER) {
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Log.i("KeyInputQueue", "Updating: " + currentMove);
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}
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return null;
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}
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MotionEvent me = MotionEvent.obtain(downTime, curTime,
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MotionEvent.ACTION_MOVE, scaledX, scaledY,
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scaledPressure, scaledSize, metaState,
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xPrecision, yPrecision, device.id, edgeFlags);
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currentMove = me;
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return me;
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}
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}
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}
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static class AbsoluteInfo {
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int minValue;
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int maxValue;
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int range;
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int flat;
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int fuzz;
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};
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InputDevice(int _id, int _classes, String _name,
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AbsoluteInfo _absX, AbsoluteInfo _absY,
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AbsoluteInfo _absPressure, AbsoluteInfo _absSize) {
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id = _id;
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classes = _classes;
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name = _name;
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absX = _absX;
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absY = _absY;
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absPressure = _absPressure;
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absSize = _absSize;
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}
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};
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