Mouse.java

/*
   Android Mouse Input Mapping
 
   Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz
 
   This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
   If a copy of the MPL was not distributed with this file, You can obtain one at
   http://mozilla.org/MPL/2.0/.
*/
 
package com.freerdp.freerdpcore.utils;
 
import android.content.Context;
 
import com.freerdp.freerdpcore.presentation.ApplicationSettingsActivity;
 
public class Mouse
{
 
  private final static int PTRFLAGS_LBUTTON = 0x1000;
  private final static int PTRFLAGS_RBUTTON = 0x2000;
  private final static int PTRFLAGS_MBUTTON = 0x4000;
 
  private final static int PTRFLAGS_DOWN = 0x8000;
  private final static int PTRFLAGS_MOVE = 0x0800;
 
  private final static int PTRFLAGS_WHEEL = 0x0200;
  private final static int PTRFLAGS_WHEEL_NEGATIVE = 0x0100;
  private final static int PTRFLAGS_HWHEEL = 0x0400;
  public final static int WHEEL_DELTA = 0x0078; // 120 rotation units = one notch
 
  public static int getLeftButtonEvent(Context context, boolean down)
  {
    if (ApplicationSettingsActivity.getSwapMouseButtons(context))
      return (PTRFLAGS_RBUTTON | (down ? PTRFLAGS_DOWN : 0));
    else
      return (PTRFLAGS_LBUTTON | (down ? PTRFLAGS_DOWN : 0));
  }
 
  public static int getRightButtonEvent(Context context, boolean down)
  {
    if (ApplicationSettingsActivity.getSwapMouseButtons(context))
      return (PTRFLAGS_LBUTTON | (down ? PTRFLAGS_DOWN : 0));
    else
      return (PTRFLAGS_RBUTTON | (down ? PTRFLAGS_DOWN : 0));
  }
 
  public static int getMiddleButtonEvent(boolean down)
  {
    return (PTRFLAGS_MBUTTON | (down ? PTRFLAGS_DOWN : 0));
  }
 
  public static int getMoveEvent()
  {
    return PTRFLAGS_MOVE;
  }
 
  public static int getScrollEvent(Context context, boolean down)
  {
    return getScrollEvent(context, down ? -WHEEL_DELTA : WHEEL_DELTA);
  }
 
  // amount: signed wheel rotation units (positive = scroll up, negative = scroll down)
  public static int getScrollEvent(Context context, int amount)
  {
    if (ApplicationSettingsActivity.getInvertScrolling(context))
      amount = -amount;
    return wheelEvent(PTRFLAGS_WHEEL, amount);
  }
 
  public static int getHScrollEvent(Context context, boolean right)
  {
    return getHScrollEvent(context, right ? WHEEL_DELTA : -WHEEL_DELTA);
  }
 
  public static int getHScrollEvent(Context context, int amount)
  {
    if (ApplicationSettingsActivity.getInvertScrolling(context))
      amount = -amount;
    return wheelEvent(PTRFLAGS_HWHEEL, amount);
  }
 
  private static int wheelEvent(int wheelFlag, int amount)
  {
    int flags = wheelFlag;
    if (amount < 0)
      flags |= PTRFLAGS_WHEEL_NEGATIVE;
    return flags | (amount & 0xFF);
  }
}